• 9 المنشورات
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  • Female
  • 17/10/1993
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التحديثات الأخيرة

  • and
    are proteolytic periodontopathogens that co-localize in polymicrobial subgingival plaque biofilms, display
    growth symbiosis and synergistic virulence in animal models of disease. These symbioses are underpinned by a range of metabolic interactions including cooperative hydrolysis of glycine-containing peptides to produce free glycine, which
    uses as a major energy and carbon source.

    To characterize the
    gene products essential for these interactions. MethodsThe
    transcriptome exposed to cell-free
    conditioned medium was determined using RNA-seq.
    proteases potentially involved in hydrolysis of glycine-containing peptides were identified using a bioinformatics approach.

    One hundred and thirty-twogenes displayed differential expression, with the pattern of gene expression consistent with succinate cross-feeding from
    to
    and metabolic shifts in the
    folate-mediated one carbon superpathway. Interestingly, no
    proteases were significantly up-regulated. Three
    proteases were identified as candidates and inactivated to determine their role in the release of free glycine.
    PG0753 and PG1788 but not PG1605 are involved in the hydrolysis of glycine-containing peptides, making free glycine available for
    utilization.

    Collectively these metabolic interactions help to partition resources and engage synergistic interactions between these two species.
    Collectively these metabolic interactions help to partition resources and engage synergistic interactions between these two species.
    Oral mycobiome profiling is important to understand host-pathogen interactions that occur in various diseases. Invasive fungal infections are particularly relevant for patients who have received chemotherapy and for those who have HIV infection. In addition, changes in fungal microbiota are associated with the worsening of chronic conditions like atopic dermatitis (AD). This work aims, through a systematic review, to analyze the methods used in previous studies to identify oral fungi and their most frequent species in patients with the following conditions HIV infection, leukemia, and atopic dermatitis.

    A literature search was performed on several different databases. Inclusion criteria were written in English or Portuguese; published between September 2009 and September 2019; analyzed oral fungi of HIV-infected, leukemia, or AD patients.

    21 studies were included and the most identified species was
    . The predominant methods of identification were morphological (13/21) and sugar fermentation and assimilation tests (11/21). Polymerase chain reaction (PCR) was the most used molecular method (8/21) followed by sequencing techniques (3/21).

    Although morphological and biochemical tests are still used, they are associated with high-throughput sequencing techniques, due to their accuracy and time saving for profiling the predominant species in oral mycobiome.
    Although morphological and biochemical tests are still used, they are associated with high-throughput sequencing techniques, due to their accuracy and time saving for profiling the predominant species in oral mycobiome.
    The potential of probiotics on the prevention and control of periodontitis and other chronic inflammatory conditions has been suggested.
    and
    species influence
    interaction with gingival epithelial cells (GECs) but may not act in a unique way. In order to select the most appropriate probiotic against
    , we aimed to evaluate the effect of several strains on
    biofilm formation and transcription virulence-associated factors (PgVAFs).

    Cell-free pH neutralized supernatants (CFS) and living
    spp. and
    spp. were tested against
    ATCC 33277 and W83, in mono- and multi-species (with
    and
    ) biofilms. Relative transcription of
    genes (
    and
    ) was determined in biofilms and under GECs co-infection.

    Probiotics CFS reduced
    ATCC 33277 levels in mono-species biofilms and living probiotics reduced
    abundance in multi-species biofilms.
    LA5 down-regulated transcription of most PgVAFs in biofilms and GECs.

    Probiotics affect
    biofilm formation by down-regulating overall PgVAFs with the most pronounced effect observed for
    LA5.
    Probiotics affect P. gingivalis biofilm formation by down-regulating overall PgVAFs with the most pronounced effect observed for L. acidophilus LA5.is an obligate, asaccharolytic, gram-negative bacteria commonly associated with increased periodontal and systemic inflammation. P. gingivalis is known to survive and persist within the host tissues as it modulates the entire ecosystem by either engineering its environment or modifying the host's immune response. It interacts with various host receptors and alters signaling pathways of inflammation, complement system, cell cycle, and apoptosis. P. gingivalis is even known to induce suicidal cell death of the host and other microbes in its vicinity with the emergence of pathobiont species. Recently, new molecular and immunological mechanisms and virulence factors of P. https://www.selleckchem.com/products/sardomozide-dihydrochloride.html gingivalis that increase its chance of survival and immune evasion within the host have been discovered. Thus, the present paper aims to provide a consolidated update on the new intricate and unique molecular mechanisms and virulence factors of P. gingivalis associated with its survival, persistence, and immune evasion within the host.
    , a late colonizer of the periodontal biofilm, has been strongly associated with the chronic form of periodontitis. The aim of this study was to investigate the effects of a Dual Zinc plus Arginine formulation (aqueous solution and dentifrice) on the pathogenic properties of
    and the barrier function of an
    gingival epithelium model.

    The Dual Zinc plus Arginine aqueous solution and dentifrice inhibited the hemolytic and proteolytic activities of
    . The Dual Zinc plus Arginine aqueous solution and dentifrice enhanced the barrier function of an
    gingival epithelium model as determined by a time-dependent increase in transepithelial electrical resistance and decrease in paracellular permeability. This was associated with an increased immunolabeling of two important tight junction proteins zonula occludens-1 and occludin. The deleterious effects of
    on keratinocyte barrier function as well as the ability of the bacterium to translocate through a gingival epithelium model were attenuated in the presence of either Dual Zinc plus Arginine aqueous solution or dentifrice.
    and are proteolytic periodontopathogens that co-localize in polymicrobial subgingival plaque biofilms, display growth symbiosis and synergistic virulence in animal models of disease. These symbioses are underpinned by a range of metabolic interactions including cooperative hydrolysis of glycine-containing peptides to produce free glycine, which uses as a major energy and carbon source. To characterize the gene products essential for these interactions. MethodsThe transcriptome exposed to cell-free conditioned medium was determined using RNA-seq. proteases potentially involved in hydrolysis of glycine-containing peptides were identified using a bioinformatics approach. One hundred and thirty-twogenes displayed differential expression, with the pattern of gene expression consistent with succinate cross-feeding from to and metabolic shifts in the folate-mediated one carbon superpathway. Interestingly, no proteases were significantly up-regulated. Three proteases were identified as candidates and inactivated to determine their role in the release of free glycine. PG0753 and PG1788 but not PG1605 are involved in the hydrolysis of glycine-containing peptides, making free glycine available for utilization. Collectively these metabolic interactions help to partition resources and engage synergistic interactions between these two species. Collectively these metabolic interactions help to partition resources and engage synergistic interactions between these two species. Oral mycobiome profiling is important to understand host-pathogen interactions that occur in various diseases. Invasive fungal infections are particularly relevant for patients who have received chemotherapy and for those who have HIV infection. In addition, changes in fungal microbiota are associated with the worsening of chronic conditions like atopic dermatitis (AD). This work aims, through a systematic review, to analyze the methods used in previous studies to identify oral fungi and their most frequent species in patients with the following conditions HIV infection, leukemia, and atopic dermatitis. A literature search was performed on several different databases. Inclusion criteria were written in English or Portuguese; published between September 2009 and September 2019; analyzed oral fungi of HIV-infected, leukemia, or AD patients. 21 studies were included and the most identified species was . The predominant methods of identification were morphological (13/21) and sugar fermentation and assimilation tests (11/21). Polymerase chain reaction (PCR) was the most used molecular method (8/21) followed by sequencing techniques (3/21). Although morphological and biochemical tests are still used, they are associated with high-throughput sequencing techniques, due to their accuracy and time saving for profiling the predominant species in oral mycobiome. Although morphological and biochemical tests are still used, they are associated with high-throughput sequencing techniques, due to their accuracy and time saving for profiling the predominant species in oral mycobiome. The potential of probiotics on the prevention and control of periodontitis and other chronic inflammatory conditions has been suggested. and species influence interaction with gingival epithelial cells (GECs) but may not act in a unique way. In order to select the most appropriate probiotic against , we aimed to evaluate the effect of several strains on biofilm formation and transcription virulence-associated factors (PgVAFs). Cell-free pH neutralized supernatants (CFS) and living spp. and spp. were tested against ATCC 33277 and W83, in mono- and multi-species (with and ) biofilms. Relative transcription of genes ( and ) was determined in biofilms and under GECs co-infection. Probiotics CFS reduced ATCC 33277 levels in mono-species biofilms and living probiotics reduced abundance in multi-species biofilms. LA5 down-regulated transcription of most PgVAFs in biofilms and GECs. Probiotics affect biofilm formation by down-regulating overall PgVAFs with the most pronounced effect observed for LA5. Probiotics affect P. gingivalis biofilm formation by down-regulating overall PgVAFs with the most pronounced effect observed for L. acidophilus LA5.is an obligate, asaccharolytic, gram-negative bacteria commonly associated with increased periodontal and systemic inflammation. P. gingivalis is known to survive and persist within the host tissues as it modulates the entire ecosystem by either engineering its environment or modifying the host's immune response. It interacts with various host receptors and alters signaling pathways of inflammation, complement system, cell cycle, and apoptosis. P. gingivalis is even known to induce suicidal cell death of the host and other microbes in its vicinity with the emergence of pathobiont species. Recently, new molecular and immunological mechanisms and virulence factors of P. https://www.selleckchem.com/products/sardomozide-dihydrochloride.html gingivalis that increase its chance of survival and immune evasion within the host have been discovered. Thus, the present paper aims to provide a consolidated update on the new intricate and unique molecular mechanisms and virulence factors of P. gingivalis associated with its survival, persistence, and immune evasion within the host. , a late colonizer of the periodontal biofilm, has been strongly associated with the chronic form of periodontitis. The aim of this study was to investigate the effects of a Dual Zinc plus Arginine formulation (aqueous solution and dentifrice) on the pathogenic properties of and the barrier function of an gingival epithelium model. The Dual Zinc plus Arginine aqueous solution and dentifrice inhibited the hemolytic and proteolytic activities of . The Dual Zinc plus Arginine aqueous solution and dentifrice enhanced the barrier function of an gingival epithelium model as determined by a time-dependent increase in transepithelial electrical resistance and decrease in paracellular permeability. This was associated with an increased immunolabeling of two important tight junction proteins zonula occludens-1 and occludin. The deleterious effects of on keratinocyte barrier function as well as the ability of the bacterium to translocate through a gingival epithelium model were attenuated in the presence of either Dual Zinc plus Arginine aqueous solution or dentifrice.
    0 التعليقات 0 المشاركات 58 مشاهدة 0 معاينة

  • Chilling stress is the major factor limiting plant productivity and quality in most regions of the world. In the present study, we aimed to evaluate the effects of putrescine (Put) and polyamine inhibitor D-arginine (D-arg) on the chilling tolerance of anthurium (Anthurium andraeanum).

    Anthurium seedlings were pretreated with five different concentrations of Put solution or D-arg solution. Subsequently, the seedlings were subjected to chilling stress at 6°C for 3days, followed by a recovery at 25°C for 1day. Relative permeability of the plasma membrane, as well as physiological and morphologic parameters was assessed during the experiments. Additionally, transcriptome sequencing and patterns of differential gene expression related to chilling response were analyzed by qRT-PCR in 1.0mM Put-treated and untreated anthurium seedlings. Results indicated that the supplementation of exogenous Put decreased the extent of membrane lipid peroxidation and the accumulation of malondialdehyde (MDA), promoted the antioxidant activities and proline content and maintained the morphologic performances compared with the control group. This finding indicated that the application of exogenous Put could effectively decrease the injury and maintain the quality of anthurium under chilling conditions. In contrast, the treatment of D-arg exhibited the opposite effects, which confirmed the effects of Put.

    This research provided a possible approach to enhance the chilling tolerance of anthurium and reduce the energy consumption used in anthurium production.
    This research provided a possible approach to enhance the chilling tolerance of anthurium and reduce the energy consumption used in anthurium production.Directional deep brain stimulation (dDBS) electrodes allow to steer the electrical field in a specific direction. When implanted with torque, they may rotate for a certain time after implantation. The aim of this study was to evaluate whether and to which degree leads rotate in the first 24 h after implantation using a sheep brain model. dDBS electrodes were implanted in 14 sheep heads and 3D rotational fluoroscopy (3D-RF) scans were acquired to visualize the orientation of the electrode leads. Electrode leads were clockwise rotated just above the **** holes (180° n = 6, 360° n = 6, 2 controls) and 3D-RF scans were again acquired after 3, 6, 13, 17, and 24 h, respectively. One hundred eighty degree rotated electrodes showed an initial rotation of 83.5° (range 35.4°-128.3°) and a rotation of 114.0° (range 57°-162°) after 24 h. With 360° torsion, mean initial rotation was 201° (range 3.3°-321.4°) and mean rotation after 24 h 215.7° (range 31.9°-334.7°), respectively. Direct postoperative imaging may not be accurate for determining the rotation of dDBS electrodes if torque is present.
    Wallerian degeneration (WD) is a well-known process after nerve injury. In this study, occurrence of remote intramedullary signal changes, consistent with WD, and its correlation with clinical and neurophysiological impairment were assessed after traumatic spinal cord injury (tSCI).

    In 35 patients with tSCI, WD was evaluated by two radiologists on T2-weighted images of serial routine MRI examinations of the cervical spine. Dorsal column (DC), lateral corticospinal tract (CS), and lateral spinothalamic tract (ST) were the analyzed anatomical regions. Impairment scoring according to the American Spinal Injury Association Impairment Scale (AIS, A-D) as well as a scoring system (0-4 points) for motor evoked potential (MEP) and sensory evoked potential (SEP) was included. Mann-Whitney U test was used to test for differences.

    WD in the DC occurred in 71.4% (n = 25), in the CS in 57.1% (n = 20), and in 37.1% (n = 13) in the ST. With WD present, AIS grades were worse for all tracts. DC median AIS B vs D, p <e lateral spinothalamic tract. • Presence of Wallerian degeneration is associated with higher degree of impairment.
    Ultrasound (US)-guided fine needle aspiration cytology (FNAC) and thyroglobulin measurement (FNA-Tg) are two common methods for confirming lymph node metastases (LNM) in patients with differentiated thyroid carcinoma (DTC). This study aimed at comparing the diagnostic performance of FNAC, FNA-Tg alone, and in combination by means of a meta-analysis.

    Eligible articles were selected according to predefined criteria, and their quality was evaluated as per the QUADAS-2 checklist. https://www.selleckchem.com/products/forskolin.html We calculated pooled sensitivity (Se), specificity (Sp), positive/negative likelihood ratio, and diagnostic odds ratio (DOR), and plotted the summary receiver operating characteristic (SROC) curve using the Meta-DiSc1.4 software.

    Twenty-one studies pooling 1662 malignant and 1279 benign LNs from 2712 patients with DTC were included. The results showed that FNAC was more specific (pooled Sp, 0.98) while FNA-Tg was more sensitive (pooled Se, 0.94). FNAC and FNAC+FNA-Tg performed better postoperatively than FNA-Tg, while FNA-Tg perforr Sp than the combination of FNAC and FNA-Tg.
    • FNAC is more specific than FNA-Tg while FNA-Tg is more sensitive than FNAC. • The combination of FNAC and FNA-Tg could achieve a better diagnostic performance than either alone, no matter preoperatively or postoperatively. • The combination of FNAC and FNA-Tg/serum-Tg ratio could reach a higher Sp than the combination of FNAC and FNA-Tg.
    To determine whether the CT finding of overlying enhancing gastric mucosa (OEGM) can be used to predict risk stratifications by observing CT features of gastrointestinal stromal tumors (GISTs) of the stomach.

    Clinical characteristics and CT features within pathologically demonstrated GISTs were retrospectively reviewed. Risk stratifications were classified into non-high group and high-risk group according to the modified National Institutes of Health criteria. Univariate analysis and multivariate logistic regression analysis were performed in order to determine significant predictors for high-risk stratification. Receiver operating characteristic (ROC) curve analysis, subgroup analysis, and pathologic-radiologic correlation analysis were all executed.

    A total of 147 patients were finally enrolled as test subjects. Within the univariate analysis, high-risk tumors tended to have a larger diameter, irregular shape, exophytic growth pattern, present necrosis, incomplete OEGM, tumor vessels, heterogeneous enhancement, and present rupture.
    Chilling stress is the major factor limiting plant productivity and quality in most regions of the world. In the present study, we aimed to evaluate the effects of putrescine (Put) and polyamine inhibitor D-arginine (D-arg) on the chilling tolerance of anthurium (Anthurium andraeanum). Anthurium seedlings were pretreated with five different concentrations of Put solution or D-arg solution. Subsequently, the seedlings were subjected to chilling stress at 6°C for 3days, followed by a recovery at 25°C for 1day. Relative permeability of the plasma membrane, as well as physiological and morphologic parameters was assessed during the experiments. Additionally, transcriptome sequencing and patterns of differential gene expression related to chilling response were analyzed by qRT-PCR in 1.0mM Put-treated and untreated anthurium seedlings. Results indicated that the supplementation of exogenous Put decreased the extent of membrane lipid peroxidation and the accumulation of malondialdehyde (MDA), promoted the antioxidant activities and proline content and maintained the morphologic performances compared with the control group. This finding indicated that the application of exogenous Put could effectively decrease the injury and maintain the quality of anthurium under chilling conditions. In contrast, the treatment of D-arg exhibited the opposite effects, which confirmed the effects of Put. This research provided a possible approach to enhance the chilling tolerance of anthurium and reduce the energy consumption used in anthurium production. This research provided a possible approach to enhance the chilling tolerance of anthurium and reduce the energy consumption used in anthurium production.Directional deep brain stimulation (dDBS) electrodes allow to steer the electrical field in a specific direction. When implanted with torque, they may rotate for a certain time after implantation. The aim of this study was to evaluate whether and to which degree leads rotate in the first 24 h after implantation using a sheep brain model. dDBS electrodes were implanted in 14 sheep heads and 3D rotational fluoroscopy (3D-RF) scans were acquired to visualize the orientation of the electrode leads. Electrode leads were clockwise rotated just above the burr holes (180° n = 6, 360° n = 6, 2 controls) and 3D-RF scans were again acquired after 3, 6, 13, 17, and 24 h, respectively. One hundred eighty degree rotated electrodes showed an initial rotation of 83.5° (range 35.4°-128.3°) and a rotation of 114.0° (range 57°-162°) after 24 h. With 360° torsion, mean initial rotation was 201° (range 3.3°-321.4°) and mean rotation after 24 h 215.7° (range 31.9°-334.7°), respectively. Direct postoperative imaging may not be accurate for determining the rotation of dDBS electrodes if torque is present. Wallerian degeneration (WD) is a well-known process after nerve injury. In this study, occurrence of remote intramedullary signal changes, consistent with WD, and its correlation with clinical and neurophysiological impairment were assessed after traumatic spinal cord injury (tSCI). In 35 patients with tSCI, WD was evaluated by two radiologists on T2-weighted images of serial routine MRI examinations of the cervical spine. Dorsal column (DC), lateral corticospinal tract (CS), and lateral spinothalamic tract (ST) were the analyzed anatomical regions. Impairment scoring according to the American Spinal Injury Association Impairment Scale (AIS, A-D) as well as a scoring system (0-4 points) for motor evoked potential (MEP) and sensory evoked potential (SEP) was included. Mann-Whitney U test was used to test for differences. WD in the DC occurred in 71.4% (n = 25), in the CS in 57.1% (n = 20), and in 37.1% (n = 13) in the ST. With WD present, AIS grades were worse for all tracts. DC median AIS B vs D, p <e lateral spinothalamic tract. • Presence of Wallerian degeneration is associated with higher degree of impairment. Ultrasound (US)-guided fine needle aspiration cytology (FNAC) and thyroglobulin measurement (FNA-Tg) are two common methods for confirming lymph node metastases (LNM) in patients with differentiated thyroid carcinoma (DTC). This study aimed at comparing the diagnostic performance of FNAC, FNA-Tg alone, and in combination by means of a meta-analysis. Eligible articles were selected according to predefined criteria, and their quality was evaluated as per the QUADAS-2 checklist. https://www.selleckchem.com/products/forskolin.html We calculated pooled sensitivity (Se), specificity (Sp), positive/negative likelihood ratio, and diagnostic odds ratio (DOR), and plotted the summary receiver operating characteristic (SROC) curve using the Meta-DiSc1.4 software. Twenty-one studies pooling 1662 malignant and 1279 benign LNs from 2712 patients with DTC were included. The results showed that FNAC was more specific (pooled Sp, 0.98) while FNA-Tg was more sensitive (pooled Se, 0.94). FNAC and FNAC+FNA-Tg performed better postoperatively than FNA-Tg, while FNA-Tg perforr Sp than the combination of FNAC and FNA-Tg. • FNAC is more specific than FNA-Tg while FNA-Tg is more sensitive than FNAC. • The combination of FNAC and FNA-Tg could achieve a better diagnostic performance than either alone, no matter preoperatively or postoperatively. • The combination of FNAC and FNA-Tg/serum-Tg ratio could reach a higher Sp than the combination of FNAC and FNA-Tg. To determine whether the CT finding of overlying enhancing gastric mucosa (OEGM) can be used to predict risk stratifications by observing CT features of gastrointestinal stromal tumors (GISTs) of the stomach. Clinical characteristics and CT features within pathologically demonstrated GISTs were retrospectively reviewed. Risk stratifications were classified into non-high group and high-risk group according to the modified National Institutes of Health criteria. Univariate analysis and multivariate logistic regression analysis were performed in order to determine significant predictors for high-risk stratification. Receiver operating characteristic (ROC) curve analysis, subgroup analysis, and pathologic-radiologic correlation analysis were all executed. A total of 147 patients were finally enrolled as test subjects. Within the univariate analysis, high-risk tumors tended to have a larger diameter, irregular shape, exophytic growth pattern, present necrosis, incomplete OEGM, tumor vessels, heterogeneous enhancement, and present rupture.
    0 التعليقات 0 المشاركات 61 مشاهدة 0 معاينة

  • 05). The 16S rRNA sequence analysis revealed that the isolate UT1 was 99% compatible with Lactobacillus casei. Conclusion It is noteworthy that the supernatant of L. casei UT1 can be candidate for studies on compounds having anti-cancer effect. © 2020 The Author (s).Purpose Here, we aim to evaluate the antileishmanial activity of compounds with a benzoxazinoid (BX) skeleton, previously synthesized by our group, against Leishmania (Viannia) braziliensis and Leishmania (Leishmania) infantum promastigotes. Methods Anti-promastigote activity, as well as cytotoxicity, were determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assays. The selectivity index (SI) for each compound was calculated using a ratio of the cytotoxicity of compounds and the geometric mean (GM) of antileishmanial concentrations to each species tested. The comparisons between groups were carried out using a t test or analysis of variance (one-way ANOVA). A P value of less than 0.05 was considered significant. Results All the compounds tested were active, with IC50 falling between 92±6.19 µg/mL and 238±6.57 µg/mL for L. braziliensis, and 89±6.43 µg/mL and 188±3.58 µg/mL against L. infantum. Bex2, Bex3, Pyr1, Pyr2, and Pyr4 were compounds that showed activity similar to the drug Glucantime®, exhibited low cytotoxicity against splenic hamster cells (CC50 raging between >400 and 105.7±2.26 µg/mL) and had favorable selectivity indices (SI 1.12 to 3.96). Conclusion The analogs in question are promising prototypes for the pharmaceutical development of novel, safer and more effective leishmanicidal agents. © 2020 The Author (s).Purpose Although the current widespread use of amikacin is in intra-abdominal sepsis treatment, its pharmacokinetic changes in the present setting are not yet well known. This study was aimed to evaluate the amikacin pharmacokinetic profile in critically ill patients with intraabdominal sepsis compared to pneumosepsis. Methods Adult septic patients received amikacin therapy were studied. Patients with intraabdominal sepsis were enrolled in group 1 (n=16), and patients with pneumosepsis were enrolled in group 2 (n=13). The amikacin serum concentrations were evaluated in the first, second, fourth and sixth hours after initiating 30-minute infusion. The pharmacokinetic parameters were calculated for each patient. https://www.selleckchem.com/products/hygromycin-b.html Results There was no significant difference in the volume of distribution between the two groups (0.33±0.08 vs. 0.28±0.10 L/kg, P=0.193). The amikacin clearance was significantly lower in group 1 compared to group 2 (58.5±21.7 vs. 83.9±37.0 mL/min, P=0.029). There was no significant correlation between amikacin clearance and creatinine clearance estimated by Cockcroft-Gault formula in all patients (P=0.206). The half-life was significantly longer in group 1 compared to group 2 (5.3±2.8 vs. 3.4±3.2 hours, P=0.015). Conclusion Pathophysiologic changes following intra-abdominal sepsis can affect amikacin pharmacokinetics behavior. The clearance and half-life may change, but the alteration of the volume of distribution is not significantly different in comparison with pneumosepsis. Further studies are required to evaluate the pharmacokinetic variables of amikacin in critically ill patients with intra-abdominal sepsis. © 2020 The Author (s).Purpose Breast cancer (**) is globally the main reason of cancer-related deaths in women. Omentin-1, an anti-inflammatory and antioxidant adipokine, plays different roles in tumorigenesis and anti-oncogenic pathways. In present study, we investigated the association of omentin-1 with oxidative stress and clinical significances in healthy controls and ** patients to assess the prognostic and diagnostic value of omentin-1 in this cancer. Methods This case-control study included 88 ** patients and 86 healthy controls. The serum levels of omentin-1 were assessed by enzyme-linked immunosorbent assays methods. Also, total antioxidant capacity (TAC), total oxidant status (TOS) and malondialdehyde (MDA) serum levels were measured by spectrophotometer. quantitative real-time polymerase chain reaction (qRT-PCR) was applied to the measurement of gene expression of omentin-1. Results the serum levels of omentin-1 were significantly lower in the ** patients compared to the healthy controls (P less then 0.001). Moreover, gene expression of omentin-1was significantly downregulated in the ** tissues compared to the adjacent normal tissues (P less then 0.001). Gene expression of omentin-1and its serum levels were significantly higher in grade I compared with grade II and III (P=0.001, P less then 0.001, respectively). Additionally, the serum levels of omentin-1 in the p53-positive ** patients were significantly higher than the p53-negative ** patients (P=0.001). There was an inverse correlation between the serum levels of MDA and TOS with the serum levels of omentin-1 (r=-0.436, r=-461, respectively). Conclusion We conclude that omentin-1 may have a good prognostic and diagnostic roles in the ** patients and decreases oxidative stress in these patients. © 2020 The Author (s).Purpose Riboswitches are special non-coding sequences usually located in mRNAs' un-translated regions and regulate gene expression and consequently cellular function. Furthermore, their interaction with antibiotics has been recently implicated. This raises more interest in development of bioinformatics tools for riboswitch studies. Herein, we describe the development and employment of novel block location-based feature extraction (BLBFE) method for classification of riboswitches. Methods We have already developed and reported a sequential block finding (SBF) algorithm which, without operating alignment methods, identifies family specific sequential blocks for riboswitch families. Herein, we employed this algorithm for 7 riboswitch families including lysine, cobalamin, glycine, SAM-alpha, SAM-IV, cyclic-di-GMP-I and SAH. Then the study was extended toward implementation of BLBFE method for feature extraction. The outcome features were applied in various classifiers including linear discriminant analysis (LDA), probabilistic neural network (PNN), decision tree and k-nearest neighbors (KNN) classifiers for classification of the riboswitch families.
    05). The 16S rRNA sequence analysis revealed that the isolate UT1 was 99% compatible with Lactobacillus casei. Conclusion It is noteworthy that the supernatant of L. casei UT1 can be candidate for studies on compounds having anti-cancer effect. © 2020 The Author (s).Purpose Here, we aim to evaluate the antileishmanial activity of compounds with a benzoxazinoid (BX) skeleton, previously synthesized by our group, against Leishmania (Viannia) braziliensis and Leishmania (Leishmania) infantum promastigotes. Methods Anti-promastigote activity, as well as cytotoxicity, were determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assays. The selectivity index (SI) for each compound was calculated using a ratio of the cytotoxicity of compounds and the geometric mean (GM) of antileishmanial concentrations to each species tested. The comparisons between groups were carried out using a t test or analysis of variance (one-way ANOVA). A P value of less than 0.05 was considered significant. Results All the compounds tested were active, with IC50 falling between 92±6.19 µg/mL and 238±6.57 µg/mL for L. braziliensis, and 89±6.43 µg/mL and 188±3.58 µg/mL against L. infantum. Bex2, Bex3, Pyr1, Pyr2, and Pyr4 were compounds that showed activity similar to the drug Glucantime®, exhibited low cytotoxicity against splenic hamster cells (CC50 raging between >400 and 105.7±2.26 µg/mL) and had favorable selectivity indices (SI 1.12 to 3.96). Conclusion The analogs in question are promising prototypes for the pharmaceutical development of novel, safer and more effective leishmanicidal agents. © 2020 The Author (s).Purpose Although the current widespread use of amikacin is in intra-abdominal sepsis treatment, its pharmacokinetic changes in the present setting are not yet well known. This study was aimed to evaluate the amikacin pharmacokinetic profile in critically ill patients with intraabdominal sepsis compared to pneumosepsis. Methods Adult septic patients received amikacin therapy were studied. Patients with intraabdominal sepsis were enrolled in group 1 (n=16), and patients with pneumosepsis were enrolled in group 2 (n=13). The amikacin serum concentrations were evaluated in the first, second, fourth and sixth hours after initiating 30-minute infusion. The pharmacokinetic parameters were calculated for each patient. https://www.selleckchem.com/products/hygromycin-b.html Results There was no significant difference in the volume of distribution between the two groups (0.33±0.08 vs. 0.28±0.10 L/kg, P=0.193). The amikacin clearance was significantly lower in group 1 compared to group 2 (58.5±21.7 vs. 83.9±37.0 mL/min, P=0.029). There was no significant correlation between amikacin clearance and creatinine clearance estimated by Cockcroft-Gault formula in all patients (P=0.206). The half-life was significantly longer in group 1 compared to group 2 (5.3±2.8 vs. 3.4±3.2 hours, P=0.015). Conclusion Pathophysiologic changes following intra-abdominal sepsis can affect amikacin pharmacokinetics behavior. The clearance and half-life may change, but the alteration of the volume of distribution is not significantly different in comparison with pneumosepsis. Further studies are required to evaluate the pharmacokinetic variables of amikacin in critically ill patients with intra-abdominal sepsis. © 2020 The Author (s).Purpose Breast cancer (BC) is globally the main reason of cancer-related deaths in women. Omentin-1, an anti-inflammatory and antioxidant adipokine, plays different roles in tumorigenesis and anti-oncogenic pathways. In present study, we investigated the association of omentin-1 with oxidative stress and clinical significances in healthy controls and BC patients to assess the prognostic and diagnostic value of omentin-1 in this cancer. Methods This case-control study included 88 BC patients and 86 healthy controls. The serum levels of omentin-1 were assessed by enzyme-linked immunosorbent assays methods. Also, total antioxidant capacity (TAC), total oxidant status (TOS) and malondialdehyde (MDA) serum levels were measured by spectrophotometer. quantitative real-time polymerase chain reaction (qRT-PCR) was applied to the measurement of gene expression of omentin-1. Results the serum levels of omentin-1 were significantly lower in the BC patients compared to the healthy controls (P less then 0.001). Moreover, gene expression of omentin-1was significantly downregulated in the BC tissues compared to the adjacent normal tissues (P less then 0.001). Gene expression of omentin-1and its serum levels were significantly higher in grade I compared with grade II and III (P=0.001, P less then 0.001, respectively). Additionally, the serum levels of omentin-1 in the p53-positive BC patients were significantly higher than the p53-negative BC patients (P=0.001). There was an inverse correlation between the serum levels of MDA and TOS with the serum levels of omentin-1 (r=-0.436, r=-461, respectively). Conclusion We conclude that omentin-1 may have a good prognostic and diagnostic roles in the BC patients and decreases oxidative stress in these patients. © 2020 The Author (s).Purpose Riboswitches are special non-coding sequences usually located in mRNAs' un-translated regions and regulate gene expression and consequently cellular function. Furthermore, their interaction with antibiotics has been recently implicated. This raises more interest in development of bioinformatics tools for riboswitch studies. Herein, we describe the development and employment of novel block location-based feature extraction (BLBFE) method for classification of riboswitches. Methods We have already developed and reported a sequential block finding (SBF) algorithm which, without operating alignment methods, identifies family specific sequential blocks for riboswitch families. Herein, we employed this algorithm for 7 riboswitch families including lysine, cobalamin, glycine, SAM-alpha, SAM-IV, cyclic-di-GMP-I and SAH. Then the study was extended toward implementation of BLBFE method for feature extraction. The outcome features were applied in various classifiers including linear discriminant analysis (LDA), probabilistic neural network (PNN), decision tree and k-nearest neighbors (KNN) classifiers for classification of the riboswitch families.
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  • We recommend similar training programmes in public health to improve early diagnosis of childhood cancer.
    To explore how person-centred practice framework can be applied to professionals participating in collaborative planning.

    An explorative, deductive approach.

    Eleven professionals from health care and social care participated in the study. A deductive content analysis was performed using a framework for person-centred practice for the analysis.

    Practicing person-centred care and collaborative planning is a complex process that needs to take into account system factors on both the macro- and the microlevel. Everyone working within the system needs to apply the same approach. Using a framework analysis offered new insights into how person-centred care is expressed in practice during collaborative planning between the patient, and healthcare and social care professionals.
    Practicing person-centred care and collaborative planning is a complex process that needs to take into account system factors on both the macro- and the microlevel. Everyone working within the system needs to apply the same approach. Using a framework analysis offered new insights into how person-centred care is expressed in practice during collaborative planning between the patient, and healthcare and social care professionals.
    The need to cope with life concerns may drive an individual to resort to high-risk behaviours. This study aimed to determine the relationship between health concerns and high-risk behaviours.

    A cross-sectional study.

    We sampled 926 Medical Sciences' students from the North of Iran from September-December 2017 using the stratified sampling method.

    The most and less common high-risk behaviour was physical inactivity (97.5%) and high-risk sexual behaviour (15.7%), respectively. In multivariate logistic regression analysis, participants' concerns about human sexuality (AOR 1.39; CI 1.22, 1.57), injury prevention and control (AOR 1.12; CI 1.01, 1.20), nutrition (AOR 1.13; CI 1.02, 1.26) and emotional health (AOR 1.08; CI 1.02, 1.15) increased the odds of risky behaviours. Among Medical Sciences' students, health concerns are linked with risky behaviours. The result of this study can be used to develop relevant interventions targeting mental health to reduce risky behaviour among youth.
    The most and less common high-risk behaviour was physical inactivity (97.5%) and high-risk sexual behaviour (15.7%), respectively. In multivariate logistic regression analysis, participants' concerns about human sexuality (AOR 1.39; CI 1.22, 1.57), injury prevention and control (AOR 1.12; CI 1.01, 1.20), nutrition (AOR 1.13; CI 1.02, 1.26) and emotional health (AOR 1.08; CI 1.02, 1.15) increased the odds of risky behaviours. Among Medical Sciences' students, health concerns are linked with risky behaviours. The result of this study can be used to develop relevant interventions targeting mental health to reduce risky behaviour among youth.
    To culturally adapt and translate the
    (EBP-B) and the
    (EBP-I), explore the psychometric properties of their validated German versions and compare results with those of the original scales.

    Cross-sectional descriptive study.

    The study was conducted on a sample of 131 Registered Nurses in a Swiss German hospital. Internal consistency was rated using Cronbach's alpha. Principal component analysis using varimax rotation was used to determine construct validity. The study was undertaken in accordance with the STROBE-checklist in Appendix S1.

    German versions of the EBP-B and EBP-I showed good reliability. Their Cronbach alphas showed lower values than those of the original scales. Principal component analysis showed medium-to-high factor loading. Principal component analyses using varimax rotations of the EBP-B's 16 items and the EBP-I's 17 items resulted in four-factor and five-factor solutions, respectively.
    German versions of the EBP-B and EBP-I showed good reliability. Their Cronbach alphas showed lower values than those of the original scales. Principal component analysis showed medium-to-high factor loading. Principal component analyses using varimax rotations of the EBP-B's 16 items and the EBP-I's 17 items resulted in four-factor and five-factor solutions, respectively.
    To examine how transformational leadership, job demands, job resources and patient safety culture contribute in explaining person-centred care in nursing homes and home care services.

    Cross-sectional study.

    Healthcare professionals in four Norwegian nursing homes (
    =165) and four home care services (
    =139) participated in 2018. Multiple regression analyses were used to examine to what degree transformational leadership, job demands, job resources and patient safety culture dimensions predicted person-centred care.

    Transformational leadership, job demands and job resources explained 41% of the variance in person-centred care, with work pace as the strongest predictor (
    =0.39
    <.001). The patient safety culture dimensions explained 57.5% of the variance in person-centred care, with staffing being the strongest predictor (
    =0.31
    <.001). https://www.selleckchem.com/products/purmorphamine.html There were small differences between nursing homes and home care. In total, transformational leadership, pace of work, staffing and factors related to communication were the strongest predictors for person-centred care.
    Transformational leadership, job demands and job resources explained 41% of the variance in person-centred care, with work pace as the strongest predictor (β = 0.39 p less then .001). The patient safety culture dimensions explained 57.5% of the variance in person-centred care, with staffing being the strongest predictor (β = 0.31 p less then .001). There were small differences between nursing homes and home care. In total, transformational leadership, pace of work, staffing and factors related to communication were the strongest predictors for person-centred care.
    This study aimed to describe the learning experiences of social and healthcare students and professionals of an interprofessional large-group simulation. A simulation on sudden infant death syndrome (SIDS) was organized in collaboration between a Finnish university, university hospital and university of applied sciences.

    A case study.

    The research data were collected at the large-group simulation with a questionnaire containing variables on a five-point Likert scale and open questions. The questionnaire was filled out by 350 students and professionals participating in the simulation. The quantitative data were analysed using descriptive statistical methods and the open-ended questions by inductive content analysis.

    The large-group simulation proved to be a valid teaching and learning method for collaborating with other professionals and interacting with clients and the method can be considered as cost-effective compared with small-group simulations. The produced knowledge can be used in planning simulations in basic and in-service training.
    We recommend similar training programmes in public health to improve early diagnosis of childhood cancer. To explore how person-centred practice framework can be applied to professionals participating in collaborative planning. An explorative, deductive approach. Eleven professionals from health care and social care participated in the study. A deductive content analysis was performed using a framework for person-centred practice for the analysis. Practicing person-centred care and collaborative planning is a complex process that needs to take into account system factors on both the macro- and the microlevel. Everyone working within the system needs to apply the same approach. Using a framework analysis offered new insights into how person-centred care is expressed in practice during collaborative planning between the patient, and healthcare and social care professionals. Practicing person-centred care and collaborative planning is a complex process that needs to take into account system factors on both the macro- and the microlevel. Everyone working within the system needs to apply the same approach. Using a framework analysis offered new insights into how person-centred care is expressed in practice during collaborative planning between the patient, and healthcare and social care professionals. The need to cope with life concerns may drive an individual to resort to high-risk behaviours. This study aimed to determine the relationship between health concerns and high-risk behaviours. A cross-sectional study. We sampled 926 Medical Sciences' students from the North of Iran from September-December 2017 using the stratified sampling method. The most and less common high-risk behaviour was physical inactivity (97.5%) and high-risk sexual behaviour (15.7%), respectively. In multivariate logistic regression analysis, participants' concerns about human sexuality (AOR 1.39; CI 1.22, 1.57), injury prevention and control (AOR 1.12; CI 1.01, 1.20), nutrition (AOR 1.13; CI 1.02, 1.26) and emotional health (AOR 1.08; CI 1.02, 1.15) increased the odds of risky behaviours. Among Medical Sciences' students, health concerns are linked with risky behaviours. The result of this study can be used to develop relevant interventions targeting mental health to reduce risky behaviour among youth. The most and less common high-risk behaviour was physical inactivity (97.5%) and high-risk sexual behaviour (15.7%), respectively. In multivariate logistic regression analysis, participants' concerns about human sexuality (AOR 1.39; CI 1.22, 1.57), injury prevention and control (AOR 1.12; CI 1.01, 1.20), nutrition (AOR 1.13; CI 1.02, 1.26) and emotional health (AOR 1.08; CI 1.02, 1.15) increased the odds of risky behaviours. Among Medical Sciences' students, health concerns are linked with risky behaviours. The result of this study can be used to develop relevant interventions targeting mental health to reduce risky behaviour among youth. To culturally adapt and translate the (EBP-B) and the (EBP-I), explore the psychometric properties of their validated German versions and compare results with those of the original scales. Cross-sectional descriptive study. The study was conducted on a sample of 131 Registered Nurses in a Swiss German hospital. Internal consistency was rated using Cronbach's alpha. Principal component analysis using varimax rotation was used to determine construct validity. The study was undertaken in accordance with the STROBE-checklist in Appendix S1. German versions of the EBP-B and EBP-I showed good reliability. Their Cronbach alphas showed lower values than those of the original scales. Principal component analysis showed medium-to-high factor loading. Principal component analyses using varimax rotations of the EBP-B's 16 items and the EBP-I's 17 items resulted in four-factor and five-factor solutions, respectively. German versions of the EBP-B and EBP-I showed good reliability. Their Cronbach alphas showed lower values than those of the original scales. Principal component analysis showed medium-to-high factor loading. Principal component analyses using varimax rotations of the EBP-B's 16 items and the EBP-I's 17 items resulted in four-factor and five-factor solutions, respectively. To examine how transformational leadership, job demands, job resources and patient safety culture contribute in explaining person-centred care in nursing homes and home care services. Cross-sectional study. Healthcare professionals in four Norwegian nursing homes ( =165) and four home care services ( =139) participated in 2018. Multiple regression analyses were used to examine to what degree transformational leadership, job demands, job resources and patient safety culture dimensions predicted person-centred care. Transformational leadership, job demands and job resources explained 41% of the variance in person-centred care, with work pace as the strongest predictor ( =0.39 <.001). The patient safety culture dimensions explained 57.5% of the variance in person-centred care, with staffing being the strongest predictor ( =0.31 <.001). https://www.selleckchem.com/products/purmorphamine.html There were small differences between nursing homes and home care. In total, transformational leadership, pace of work, staffing and factors related to communication were the strongest predictors for person-centred care. Transformational leadership, job demands and job resources explained 41% of the variance in person-centred care, with work pace as the strongest predictor (β = 0.39 p less then .001). The patient safety culture dimensions explained 57.5% of the variance in person-centred care, with staffing being the strongest predictor (β = 0.31 p less then .001). There were small differences between nursing homes and home care. In total, transformational leadership, pace of work, staffing and factors related to communication were the strongest predictors for person-centred care. This study aimed to describe the learning experiences of social and healthcare students and professionals of an interprofessional large-group simulation. A simulation on sudden infant death syndrome (SIDS) was organized in collaboration between a Finnish university, university hospital and university of applied sciences. A case study. The research data were collected at the large-group simulation with a questionnaire containing variables on a five-point Likert scale and open questions. The questionnaire was filled out by 350 students and professionals participating in the simulation. The quantitative data were analysed using descriptive statistical methods and the open-ended questions by inductive content analysis. The large-group simulation proved to be a valid teaching and learning method for collaborating with other professionals and interacting with clients and the method can be considered as cost-effective compared with small-group simulations. The produced knowledge can be used in planning simulations in basic and in-service training.
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  • Brain injury induced by cardiac arrest/cardiopulmonary resuscitation (CA/CPR) is the leading cause of death among patients who have recovery of spontaneous circulation (ROSC). https://www.selleckchem.com/products/Clopidogrel-bisulfate.html Inflammatory response, apoptosis, and oxidative stress are proven pathological mechanisms implicated in neuronal damage. Methane-rich saline (MRS) has been proven that exerts a beneficial protectiveness impact in several models of ischemia-reperfusion injury. The goal of this paper is to ascertain the role of MRS in CA/CPR-induced brain injury and its potential mechanisms. The tracheal intubation of Sprague-Dawley (SD) rats was clamped for 6 min to establish an asphyxiating cardiac arrest model. After that, chest compressions were applied; then, MRS or saline was administered immediately post-ROSC, the rats were sacrificed, and brain tissue was collected at the end of 6 hours. We observed that MRS treatment attenuated neuronal damage in the hippocampal CA1 region by inhibiting microglial activation, leading to a decrease in the overexpression of proinflammatory cytokines such as TNF-α, IL-6, and iNOS. The results also illustrated that MRS treatment diminished apoptosis in the hippocampal CA1 region , reduced the expression of apoptosis-associated proteins Bax and cleaved caspase9, and increased Bcl-2 expression, as well as inhibited the expression of endoplasmic reticulum (ER) stress pathway-related proteins GRP78, ATF4, and CHOP. Further findings showed that MRS treatment significantly attenuated hippocampal ROS and MDA levels and increased GSH and *** antioxidant factor levels, which indicated that MRS treatment could inhibit oxidative stress. Our results suggest that MRS exerts a protective effect against CA/CPR brain injury, by inhibiting oxidative stress, microglial activation-induced inflammatory responses, and ER stress-mediated apoptosis.
    Cerebral ischemic stroke (CIS) is a common cerebrovascular disease whose main risks include necrosis, apoptosis, and cerebral infarction. But few therapeutic advances and prominent drugs seem to be of value for ischemic stroke in the clinic yet. In the previous study, notoginseng leaf triterpenes (PNGL) from
    notoginseng stem and leaf have been confirmed to have neuroprotective effects against mitochondrial damages caused by cerebral ischemia
    . However, the potential mechanisms of mitochondrial protection have not been fully elaborated yet.

    The oxygen and glucose deprivation and reperfusion (OGD/R)-induced SH-SY5Y cells were adopted to explore the neuroprotective effects and the potential mechanisms of PNGL
    . Cellular cytotoxicity was measured by MTT, viable mitochondrial staining, and antioxidant marker detection
    .Mitochondrial functions were analyzed by ATP content measurement, MMP determination, ROS, NAD, and NADH kit
    . And the inhibitor FK866 was adopted to verify the regulation of PNGL on tabolism therapy via NAMPT against OGD-induced SH-SY5Y cell injury.
    The mitochondrial protective effects of PNGL are, at least partly, mediated via the NAMPT-NAD+ and its downstream SIRT1/2/3-Foxo3a-MnSOD/PGC-1α signaling pathways. PNGL, as a new drug candidate, has a pivotal role in mitochondrial homeostasis and energy metabolism therapy via NAMPT against OGD-induced SH-SY5Y cell injury.Mitochondrial oxidative stress and dysfunction play an important role of atrial remodeling and atrial fibrillation (AF) in diabetes mellitus. Endoplasmic reticulum (ER) stress has been linked to both physiological and pathological states including diabetes. The aim of this project is to explore the roles of ER stress in hyperglycemia-induced mitochondrial dysfunction and cell death of atrial cardiomyocytes. High glucose upregulated ER stress, mitochondrial oxidative stress, and mitochondria-associated ER membrane (MAM)- enriched proteins (such as glucose-regulated protein 75 (GRP75) and mitofusin-2 (Mfn2)) of primary cardiomyocytes in vitro. Sodium phenylbutyrate (4-PBA) prevented the above changes. Silencing of Mfn2 in HL-1 cells decreased the Ca2+ transfer from ER to mitochondria under ER stress conditions, which were induced by the ER stress agonist, tunicamycin (TM). Electron microscopy data suggested that Mfn2 siRNA significantly disrupted ER-mitochondria tethering in ER stress-injured HL-1 cells. Mfn2 silencing attenuated mitochondrial oxidative stress and Ca2+ overload, increased mitochondrial membrane potential and mitochondrial oxygen consumption, and protected cells from TM-induced apoptosis. In summary, Mfn2 plays an important role in high glucose-induced ER stress in atrial cardiomyocytes, and Mfn2 silencing prevents mitochondrial Ca2+ overload-mediated mitochondrial dysfunction, thereby decreasing ER stress-mediated cardiomyocyte cell death.Idiopathic pulmonary fibrosis (IPF) is a progressive, irreversible lung disease of unknown etiology with limited survival. IPF incidence and prevalence increase significantly with aging, which is associated with an age-related accumulation of oxidative DNA damage. The Mutyh gene is involved in the base excision repair (BER) system, which is critical for repairing the misincorporated adenine that is opposite to the oxidized guanine base, 8-oxoguanine, and maintaining the fidelity of DNA replication. We used Mutyh knockout **** and a bleomycin-induced pulmonary fibrosis model to test the effect of MUTYH deficiency on lesion progression. Unexpectedly, a **** less severe lesion of pulmonary fibrosis was observed in Mutyh-/- than in Mutyh+/+ ****, which was supported by assay on protein levels of TGF-β1 and both fibrotic markers, α-SMA and Vimentin, in pulmonary tissues of the model animals. Mechanically, MUTYH deficiency prevented the genomic DNA of pulmonary tissue cells from the buildup of single-strand breaks (SSBs) of DNA and maintained the integrity of mtDNA. Furthermore, increased mitochondrial dynamic regulation and mitophagy were detected in pulmonary tissues of the bleomycin-induced Mutyh-/- model ****, which could reduce the pulmonary epithelial cell apoptosis. Our results suggested that MUTYH deficiency could even induce protective responses of pulmonary tissue under severe oxidative stress.
    Brain injury induced by cardiac arrest/cardiopulmonary resuscitation (CA/CPR) is the leading cause of death among patients who have recovery of spontaneous circulation (ROSC). https://www.selleckchem.com/products/Clopidogrel-bisulfate.html Inflammatory response, apoptosis, and oxidative stress are proven pathological mechanisms implicated in neuronal damage. Methane-rich saline (MRS) has been proven that exerts a beneficial protectiveness impact in several models of ischemia-reperfusion injury. The goal of this paper is to ascertain the role of MRS in CA/CPR-induced brain injury and its potential mechanisms. The tracheal intubation of Sprague-Dawley (SD) rats was clamped for 6 min to establish an asphyxiating cardiac arrest model. After that, chest compressions were applied; then, MRS or saline was administered immediately post-ROSC, the rats were sacrificed, and brain tissue was collected at the end of 6 hours. We observed that MRS treatment attenuated neuronal damage in the hippocampal CA1 region by inhibiting microglial activation, leading to a decrease in the overexpression of proinflammatory cytokines such as TNF-α, IL-6, and iNOS. The results also illustrated that MRS treatment diminished apoptosis in the hippocampal CA1 region , reduced the expression of apoptosis-associated proteins Bax and cleaved caspase9, and increased Bcl-2 expression, as well as inhibited the expression of endoplasmic reticulum (ER) stress pathway-related proteins GRP78, ATF4, and CHOP. Further findings showed that MRS treatment significantly attenuated hippocampal ROS and MDA levels and increased GSH and SOD antioxidant factor levels, which indicated that MRS treatment could inhibit oxidative stress. Our results suggest that MRS exerts a protective effect against CA/CPR brain injury, by inhibiting oxidative stress, microglial activation-induced inflammatory responses, and ER stress-mediated apoptosis. Cerebral ischemic stroke (CIS) is a common cerebrovascular disease whose main risks include necrosis, apoptosis, and cerebral infarction. But few therapeutic advances and prominent drugs seem to be of value for ischemic stroke in the clinic yet. In the previous study, notoginseng leaf triterpenes (PNGL) from notoginseng stem and leaf have been confirmed to have neuroprotective effects against mitochondrial damages caused by cerebral ischemia . However, the potential mechanisms of mitochondrial protection have not been fully elaborated yet. The oxygen and glucose deprivation and reperfusion (OGD/R)-induced SH-SY5Y cells were adopted to explore the neuroprotective effects and the potential mechanisms of PNGL . Cellular cytotoxicity was measured by MTT, viable mitochondrial staining, and antioxidant marker detection .Mitochondrial functions were analyzed by ATP content measurement, MMP determination, ROS, NAD, and NADH kit . And the inhibitor FK866 was adopted to verify the regulation of PNGL on tabolism therapy via NAMPT against OGD-induced SH-SY5Y cell injury. The mitochondrial protective effects of PNGL are, at least partly, mediated via the NAMPT-NAD+ and its downstream SIRT1/2/3-Foxo3a-MnSOD/PGC-1α signaling pathways. PNGL, as a new drug candidate, has a pivotal role in mitochondrial homeostasis and energy metabolism therapy via NAMPT against OGD-induced SH-SY5Y cell injury.Mitochondrial oxidative stress and dysfunction play an important role of atrial remodeling and atrial fibrillation (AF) in diabetes mellitus. Endoplasmic reticulum (ER) stress has been linked to both physiological and pathological states including diabetes. The aim of this project is to explore the roles of ER stress in hyperglycemia-induced mitochondrial dysfunction and cell death of atrial cardiomyocytes. High glucose upregulated ER stress, mitochondrial oxidative stress, and mitochondria-associated ER membrane (MAM)- enriched proteins (such as glucose-regulated protein 75 (GRP75) and mitofusin-2 (Mfn2)) of primary cardiomyocytes in vitro. Sodium phenylbutyrate (4-PBA) prevented the above changes. Silencing of Mfn2 in HL-1 cells decreased the Ca2+ transfer from ER to mitochondria under ER stress conditions, which were induced by the ER stress agonist, tunicamycin (TM). Electron microscopy data suggested that Mfn2 siRNA significantly disrupted ER-mitochondria tethering in ER stress-injured HL-1 cells. Mfn2 silencing attenuated mitochondrial oxidative stress and Ca2+ overload, increased mitochondrial membrane potential and mitochondrial oxygen consumption, and protected cells from TM-induced apoptosis. In summary, Mfn2 plays an important role in high glucose-induced ER stress in atrial cardiomyocytes, and Mfn2 silencing prevents mitochondrial Ca2+ overload-mediated mitochondrial dysfunction, thereby decreasing ER stress-mediated cardiomyocyte cell death.Idiopathic pulmonary fibrosis (IPF) is a progressive, irreversible lung disease of unknown etiology with limited survival. IPF incidence and prevalence increase significantly with aging, which is associated with an age-related accumulation of oxidative DNA damage. The Mutyh gene is involved in the base excision repair (BER) system, which is critical for repairing the misincorporated adenine that is opposite to the oxidized guanine base, 8-oxoguanine, and maintaining the fidelity of DNA replication. We used Mutyh knockout mice and a bleomycin-induced pulmonary fibrosis model to test the effect of MUTYH deficiency on lesion progression. Unexpectedly, a much less severe lesion of pulmonary fibrosis was observed in Mutyh-/- than in Mutyh+/+ mice, which was supported by assay on protein levels of TGF-β1 and both fibrotic markers, α-SMA and Vimentin, in pulmonary tissues of the model animals. Mechanically, MUTYH deficiency prevented the genomic DNA of pulmonary tissue cells from the buildup of single-strand breaks (SSBs) of DNA and maintained the integrity of mtDNA. Furthermore, increased mitochondrial dynamic regulation and mitophagy were detected in pulmonary tissues of the bleomycin-induced Mutyh-/- model mice, which could reduce the pulmonary epithelial cell apoptosis. Our results suggested that MUTYH deficiency could even induce protective responses of pulmonary tissue under severe oxidative stress.
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  • Transplant activity during a pandemic should be tailored with careful selection of both donors and recipients. Furthermore, while tremendous strides have been made in treatment strategies and vaccinations, the impact of these in transplant recipients may be attenuated in the setting of their immunosuppression. In this review, we aim to summarize several aspects of COVID-19 in transplantation, including the immune response to SARS-CoV-2, SARS-CoV-2 diagnostics, clinical outcomes in SOT recipients, and end-stage kidney disease patients, transplant activity during the pandemic, and treatment options for COVID-19 disease.
    Facial vascularized composite allotransplantation (fVCA) represents a reconstructive approach that enables superior improvements in functional and esthetic restoration compared to conventional craniomaxillofacial reconstruction. Outcome reports of fVCA are usually limited to short-term follow-up or single-center experiences. We merge scientific literature on reported long-term outcome data to better define the risks and benefits of fVCA.

    We conducted a systematic review of PubMed/MEDLINE databases in accordance with PRISMA guidelines. English full-text articles providing data on at least 1 unique fVCA patient, with ≥ 3 years follow-up, were included.

    The search yielded 1812 articles, of which 28 were ultimately included. We retrieved data on 23 fVCA patients with mean follow-up of 5.3 years. More than half of the patients showed improved quality of life, eating, speech, and motor and sensory function following fVCA. On average, the patients had 1 acute cell-mediated rejection and infectious episode per llenges in this field.
    Non-invasive biomarkers may predict adverse events such as acute rejection after kidney transplantation and may be preferable to existing methods because of superior accuracy and convenience. It is uncertain how these biomarkers, often derived from a single study, perform across different cohorts of recipients.

    Using a cross-validation framework that evaluates the performance of biomarkers, the aim of this study was to devise an integrated gene signature set that predicts acute rejection in kidney transplant recipients. Inclusion criteria were publicly available datasets of gene signatures that reported acute rejection episodes after kidney transplantation. We tested the predictive probability for acute rejection using gene signatures within individual datasets and validated the set using other datasets. Eight eligible studies of 1454 participants, with a total of 512 acute rejections episodes were included.

    All sets of gene signatures had good positive and negative predictive values (79-96%) for acute erformance of these markers.
    We determined the recovery from neuromuscular fatigue in six professional (PRO) and seven moderately trained cyclists (MOD) following repeated cycling time-trials of various intensity/duration.

    Participants performed two 1-min (1minTT) or two 10-min (10minTT) self-paced cycling time-trials with 5-min of recovery in-between. Central and peripheral fatigue were quantified via pre- to post-exercise (15-s through 15-min recovery) changes in voluntary activation (VA) and potentiated twitch force. VA was measured using the interpolated twitch technique and potentiated twitch force was evoked by single (QTsingle) and paired [10-Hz (QT10) and 100-Hz (QT100)] electrical stimulations of the femoral nerve.

    Mean power output was 32-72% higher during all the time-trials and decreased less (-10% vs -13%) from the first to second time-trial in PRO compared with MOD (P<0.05). Conversely, exercise-induced reduction in QTsingle and QT10/QT100 was significantly lower in PRO following every time-trial (P<0.05). Recovf recovery in its early phase. Finally, the time-course of recovery from neuromuscular fatigue in PRO was dependent on the effects of prolonged low-frequency force depression.
    To describe the kinetics of carnosine washout in human skeletal muscle over 16 weeks.

    Carnosine washout kinetics were studied in fifteen young, physically-active omnivorous men randomly assigned to take 6.4 g·d of β-alanine (n=11) or placebo (PL, n=4) for 8 weeks. Muscle carnosine content (M-Carn) was determined before (PRE), immediately after (POST) and 4, 8, 12 and 16 weeks after supplementation. High-intensity exercise tests were performed at these same time points. https://www.selleckchem.com/TGF-beta.html Linear and exponential models were fitted to the washout data and the leave-one-out method was used to select the model with the best fit for M-Carn decay data. Repeated measures correlation analysis was used to assess the association between changes in M-Carn and changes in performance.

    M-Carn increased from PRE to POST in the β-alanine group only (+91.1±29.1%; PL+0.04±10.1%; p<0.0001). M-Carn started to decrease after cessation of β-alanine supplementation and continued to decrease until week 16 (POST4+59±40%; POST8+35±39%; POST12+18entation strategies.Between-limb asymmetries during running are often evaluated to assess injury risk or recovery. Asymmetries less than 10% are generally considered normal, but it is unknown if asymmetries vary depending on the metric of interest, the athlete's sex, or running speed.
    The primary aim of this investigation was to describe the magnitude of asymmetries of common variables during running among healthy athletes and to determine if sex and speed influence magnitudes of asymmetry.

    This study analyzed routinely collected running gait data on healthy Division I collegiate athletes. All athletes had no history of lower-extremity (LE) surgery, no LE injuries for 3 months before testing, and had running data available at 2.68, 2.95, 3.35, 3.80, and 4.47m·s. Asymmetries were calculated for ground reaction forces, spatiotemporal metrics, joint kinematics, and joint kinetics. Separate linear mixed effects models assessed the influence of sex, speed, and the interaction on asymmetries of interest. Z-scores were calculated foeed appear to be minor factors.
    The increased physiological demand of pregnancy results in profound adaptation of the maternal cardiovascular system, reflected by greater resting cardiac output and left ventricular (LV) deformation. Whether the increased resting demand alters acute cardiac responses to exercise in healthy pregnant women is not well understood.

    Healthy non-pregnant (n=18), pregnant (n=14, 22-26 weeks gestation) and postpartum women (n=13, 12-16 weeks post-delivery) underwent assessments of cardiac function and LV mechanics at rest, during a sustained isometric forearm contraction (30% maximum) and during low- (LOW) and moderate-intensity (MOD) dynamic cycling exercise (25 and 50% peak power output). Significant differences (α=0.05) were determined using ANCOVA and general linear model (resting value included as covariate).

    When accounting for higher resting cardiac output in pregnant women, pregnant women had greater cardiac output during isometric contraction (2.0±0.3; non-pregnant 1.3±0.2; postpartum 1.5±0.5 L.min/m, P=0.
    Transplant activity during a pandemic should be tailored with careful selection of both donors and recipients. Furthermore, while tremendous strides have been made in treatment strategies and vaccinations, the impact of these in transplant recipients may be attenuated in the setting of their immunosuppression. In this review, we aim to summarize several aspects of COVID-19 in transplantation, including the immune response to SARS-CoV-2, SARS-CoV-2 diagnostics, clinical outcomes in SOT recipients, and end-stage kidney disease patients, transplant activity during the pandemic, and treatment options for COVID-19 disease. Facial vascularized composite allotransplantation (fVCA) represents a reconstructive approach that enables superior improvements in functional and esthetic restoration compared to conventional craniomaxillofacial reconstruction. Outcome reports of fVCA are usually limited to short-term follow-up or single-center experiences. We merge scientific literature on reported long-term outcome data to better define the risks and benefits of fVCA. We conducted a systematic review of PubMed/MEDLINE databases in accordance with PRISMA guidelines. English full-text articles providing data on at least 1 unique fVCA patient, with ≥ 3 years follow-up, were included. The search yielded 1812 articles, of which 28 were ultimately included. We retrieved data on 23 fVCA patients with mean follow-up of 5.3 years. More than half of the patients showed improved quality of life, eating, speech, and motor and sensory function following fVCA. On average, the patients had 1 acute cell-mediated rejection and infectious episode per llenges in this field. Non-invasive biomarkers may predict adverse events such as acute rejection after kidney transplantation and may be preferable to existing methods because of superior accuracy and convenience. It is uncertain how these biomarkers, often derived from a single study, perform across different cohorts of recipients. Using a cross-validation framework that evaluates the performance of biomarkers, the aim of this study was to devise an integrated gene signature set that predicts acute rejection in kidney transplant recipients. Inclusion criteria were publicly available datasets of gene signatures that reported acute rejection episodes after kidney transplantation. We tested the predictive probability for acute rejection using gene signatures within individual datasets and validated the set using other datasets. Eight eligible studies of 1454 participants, with a total of 512 acute rejections episodes were included. All sets of gene signatures had good positive and negative predictive values (79-96%) for acute erformance of these markers. We determined the recovery from neuromuscular fatigue in six professional (PRO) and seven moderately trained cyclists (MOD) following repeated cycling time-trials of various intensity/duration. Participants performed two 1-min (1minTT) or two 10-min (10minTT) self-paced cycling time-trials with 5-min of recovery in-between. Central and peripheral fatigue were quantified via pre- to post-exercise (15-s through 15-min recovery) changes in voluntary activation (VA) and potentiated twitch force. VA was measured using the interpolated twitch technique and potentiated twitch force was evoked by single (QTsingle) and paired [10-Hz (QT10) and 100-Hz (QT100)] electrical stimulations of the femoral nerve. Mean power output was 32-72% higher during all the time-trials and decreased less (-10% vs -13%) from the first to second time-trial in PRO compared with MOD (P<0.05). Conversely, exercise-induced reduction in QTsingle and QT10/QT100 was significantly lower in PRO following every time-trial (P<0.05). Recovf recovery in its early phase. Finally, the time-course of recovery from neuromuscular fatigue in PRO was dependent on the effects of prolonged low-frequency force depression. To describe the kinetics of carnosine washout in human skeletal muscle over 16 weeks. Carnosine washout kinetics were studied in fifteen young, physically-active omnivorous men randomly assigned to take 6.4 g·d of β-alanine (n=11) or placebo (PL, n=4) for 8 weeks. Muscle carnosine content (M-Carn) was determined before (PRE), immediately after (POST) and 4, 8, 12 and 16 weeks after supplementation. High-intensity exercise tests were performed at these same time points. https://www.selleckchem.com/TGF-beta.html Linear and exponential models were fitted to the washout data and the leave-one-out method was used to select the model with the best fit for M-Carn decay data. Repeated measures correlation analysis was used to assess the association between changes in M-Carn and changes in performance. M-Carn increased from PRE to POST in the β-alanine group only (+91.1±29.1%; PL+0.04±10.1%; p<0.0001). M-Carn started to decrease after cessation of β-alanine supplementation and continued to decrease until week 16 (POST4+59±40%; POST8+35±39%; POST12+18entation strategies.Between-limb asymmetries during running are often evaluated to assess injury risk or recovery. Asymmetries less than 10% are generally considered normal, but it is unknown if asymmetries vary depending on the metric of interest, the athlete's sex, or running speed. The primary aim of this investigation was to describe the magnitude of asymmetries of common variables during running among healthy athletes and to determine if sex and speed influence magnitudes of asymmetry. This study analyzed routinely collected running gait data on healthy Division I collegiate athletes. All athletes had no history of lower-extremity (LE) surgery, no LE injuries for 3 months before testing, and had running data available at 2.68, 2.95, 3.35, 3.80, and 4.47m·s. Asymmetries were calculated for ground reaction forces, spatiotemporal metrics, joint kinematics, and joint kinetics. Separate linear mixed effects models assessed the influence of sex, speed, and the interaction on asymmetries of interest. Z-scores were calculated foeed appear to be minor factors. The increased physiological demand of pregnancy results in profound adaptation of the maternal cardiovascular system, reflected by greater resting cardiac output and left ventricular (LV) deformation. Whether the increased resting demand alters acute cardiac responses to exercise in healthy pregnant women is not well understood. Healthy non-pregnant (n=18), pregnant (n=14, 22-26 weeks gestation) and postpartum women (n=13, 12-16 weeks post-delivery) underwent assessments of cardiac function and LV mechanics at rest, during a sustained isometric forearm contraction (30% maximum) and during low- (LOW) and moderate-intensity (MOD) dynamic cycling exercise (25 and 50% peak power output). Significant differences (α=0.05) were determined using ANCOVA and general linear model (resting value included as covariate). When accounting for higher resting cardiac output in pregnant women, pregnant women had greater cardiac output during isometric contraction (2.0±0.3; non-pregnant 1.3±0.2; postpartum 1.5±0.5 L.min/m, P=0.
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  • This paper describes two experiments conducted to investigate changes in the autonomic nervous system and axillary temperature caused by electric potential therapy. The former was investigated using a frequency analysis of successive heartbeats (RR intervals) and cortisol in saliva. The experimental results on the RR intervals suggest no significant change in the autonomic nervous system, but those on the saliva cortisol indicate a change in the system during the therapy. The axillary temperature showed a significant increase. The results on the autonomic nervous system seem inconsistent, and these results as well as future directions were discussed.Patients with deep brain stimulation (DBS) devices have limited access to magnetic resonance imaging (MRI) due to safety concerns associated with RF heating generated around the implant. The problem of predicting RF heating of conductive leads is complex with a large parameter space and several interplaying factors. Recently however, off-label use of MRI in patients with DBS devices has been reported based on limited safety assessments, raising the concern that potentially dangerous scenarios may have been overlooked. In this work, we present results of a systematic assessment of RF heating of a commercial DBS device during MRI at 1.5T and 3T, taking into account the effect of device configuration, imaging landmark, and patient's body composition. Ninety-six (96) RF heating measurements were performed using anthropomorphic phantoms implanted with a full DBS system. We evaluated eight clinically relevant device configurations, implanted in phantoms with different material compositions, and imaged at three different landmarks (head, shoulder, and lower chest) in 1.5 T and 3T scanners. We observed a substantial fluctuation in the RF heating depending on phantom's composition and device configuration. RF heating in the brain-mimicking gel varied from 0.1°C to 12°C during 1.5 T MRI and from less then 0.1°C to 4.5°C during 3T MRI. https://www.selleckchem.com/products/forskolin.html We also observed that certain device configurations consistently reduced RF heating across different phantom compositions, imaging landmarks, and MRI transmit frequencies.A miniaturized intracerebral potential recorder for long-term local field potential (LFP) of deep brain signals is proposed. LFP can be recorded by deep brain electrodes. The abnormal beta-band oscillation of LFP in subthalamic nucleus and internal globus pallidus in patients with Parkinson's disease (PD) are associated with the severity of the symptoms. The LFP signal from patients who have been implanted with deep brain electrode can be monitored by our system for at least 24 hours in real time. Graphical user interface has also been developed for use by medical personnel. Imitation experiments and in vivo experiments were performed to successfully verify that our system can measure LFP signals. With 24-hour intracerebral signals, researchers can analyze what is happened in the brain in daily life. In the future, more effective PD treatment can be developed, such as intelligent closed-loop deep brain stimulation.Long-term preclinical study available extracranial brain activator (ECBA) system, ECBAv2, is proposed for the non-anesthetic canine models. The titanium-packaged module shows enhanced durability, even after a year of implantation in the scalp. In addition, the wearable helmet type base station provides a stable experimental environment without anesthesia. In this work, HFS stimulation is induced to six canine models for 30 minutes every day over 4 weeks (10Hz, 40Hz and no stimulation for each pair of subjects). Pre- and post-HFS stimulation PET-CT image shows remarkable increases of glucose metabolism in the temporal and parietal lobes. Moreover, both the 40-Hz and 10-Hz groups shows noticeable increase and the former group has more increments than the latter. Our results establish that HFS stimulation definitely worked as facilitating brain activity which may affect memory and sensory skills, respectively.Cerebral palsy is a neurodevelopmental condition that affects 17 million individuals worldwide. Traditionally, methods of therapy are repetitive and monotonous, generating immense difficulty in maintaining patient motivation and engagement. This project's objective was to provide a novel method of therapeutic intervention that was co-designed by therapists and had the capacity to increase patient motivation and enjoyment. The system developed incorporated the use of muscle activations retrieved from a bespoke surface electromyography subsystem, to control custom computer games to increase therapy uptake. The safety and functionality of this device was verified through a series of trials performed on adults without any muscular impairments. Furthermore, a feasibility evaluation was conducted whereby the system was demonstrated to a group of healthcare professionals to gain their feedback. The trial results confirmed the safety and functionality of the system, with professional therapists confirming its clinical potential and its perceived benefits.Clinical assessment of Multiple Sclerosis relies heavily on the Expanded Disability Status Scale, a non-linear rating system based on physician assessment of disease progression and walking ability. This inherently makes this method both subjective and limited in repeatability. This study developed a technically derived outcome measure of posture to compare a cohort of Multiple Sclerosis and Control subjects during an Eyes-Open and Eyes-closed task. Analysing traditional sway parameters and a multiscale entropy derived complexity index of posturography showed a significant difference in medio-lateral sway between groups during the Eyes-Open condition. This technically derived outcome measure may be of clinical benefit in the longitudinal assessment of the functional impact of balance in MS cohorts and assist in the evaluation of pharmaceutical and rehabilitation interventions.We examined different methods of robotic proprioception assessment and provided comparison with the wrist position sense test gold standard assessment. The aim is to determine which of the assessments are the most reliable and would be acceptable for clinical evaluation. 31 children between six and sixteen participated in a pilot assessment trial and completed all four of the assessments. The assessments included the manual and robotic versions of the wrist position sense test, the joint position matching assessment and the psychometric threshold determination assessment. There was not a significant difference between the manual and robotic wrist position sense tests but there were significant differences with the other assessments. The study also examined the effect of age on the different assessments and found that three of the assessments, excluding the joint position matching assessment, can differentiate between children of different ages. This study concludes that the significant differences between the assessments indicates that proprioception in the wrist is complex and multifaceted.
    This paper describes two experiments conducted to investigate changes in the autonomic nervous system and axillary temperature caused by electric potential therapy. The former was investigated using a frequency analysis of successive heartbeats (RR intervals) and cortisol in saliva. The experimental results on the RR intervals suggest no significant change in the autonomic nervous system, but those on the saliva cortisol indicate a change in the system during the therapy. The axillary temperature showed a significant increase. The results on the autonomic nervous system seem inconsistent, and these results as well as future directions were discussed.Patients with deep brain stimulation (DBS) devices have limited access to magnetic resonance imaging (MRI) due to safety concerns associated with RF heating generated around the implant. The problem of predicting RF heating of conductive leads is complex with a large parameter space and several interplaying factors. Recently however, off-label use of MRI in patients with DBS devices has been reported based on limited safety assessments, raising the concern that potentially dangerous scenarios may have been overlooked. In this work, we present results of a systematic assessment of RF heating of a commercial DBS device during MRI at 1.5T and 3T, taking into account the effect of device configuration, imaging landmark, and patient's body composition. Ninety-six (96) RF heating measurements were performed using anthropomorphic phantoms implanted with a full DBS system. We evaluated eight clinically relevant device configurations, implanted in phantoms with different material compositions, and imaged at three different landmarks (head, shoulder, and lower chest) in 1.5 T and 3T scanners. We observed a substantial fluctuation in the RF heating depending on phantom's composition and device configuration. RF heating in the brain-mimicking gel varied from 0.1°C to 12°C during 1.5 T MRI and from less then 0.1°C to 4.5°C during 3T MRI. https://www.selleckchem.com/products/forskolin.html We also observed that certain device configurations consistently reduced RF heating across different phantom compositions, imaging landmarks, and MRI transmit frequencies.A miniaturized intracerebral potential recorder for long-term local field potential (LFP) of deep brain signals is proposed. LFP can be recorded by deep brain electrodes. The abnormal beta-band oscillation of LFP in subthalamic nucleus and internal globus pallidus in patients with Parkinson's disease (PD) are associated with the severity of the symptoms. The LFP signal from patients who have been implanted with deep brain electrode can be monitored by our system for at least 24 hours in real time. Graphical user interface has also been developed for use by medical personnel. Imitation experiments and in vivo experiments were performed to successfully verify that our system can measure LFP signals. With 24-hour intracerebral signals, researchers can analyze what is happened in the brain in daily life. In the future, more effective PD treatment can be developed, such as intelligent closed-loop deep brain stimulation.Long-term preclinical study available extracranial brain activator (ECBA) system, ECBAv2, is proposed for the non-anesthetic canine models. The titanium-packaged module shows enhanced durability, even after a year of implantation in the scalp. In addition, the wearable helmet type base station provides a stable experimental environment without anesthesia. In this work, HFS stimulation is induced to six canine models for 30 minutes every day over 4 weeks (10Hz, 40Hz and no stimulation for each pair of subjects). Pre- and post-HFS stimulation PET-CT image shows remarkable increases of glucose metabolism in the temporal and parietal lobes. Moreover, both the 40-Hz and 10-Hz groups shows noticeable increase and the former group has more increments than the latter. Our results establish that HFS stimulation definitely worked as facilitating brain activity which may affect memory and sensory skills, respectively.Cerebral palsy is a neurodevelopmental condition that affects 17 million individuals worldwide. Traditionally, methods of therapy are repetitive and monotonous, generating immense difficulty in maintaining patient motivation and engagement. This project's objective was to provide a novel method of therapeutic intervention that was co-designed by therapists and had the capacity to increase patient motivation and enjoyment. The system developed incorporated the use of muscle activations retrieved from a bespoke surface electromyography subsystem, to control custom computer games to increase therapy uptake. The safety and functionality of this device was verified through a series of trials performed on adults without any muscular impairments. Furthermore, a feasibility evaluation was conducted whereby the system was demonstrated to a group of healthcare professionals to gain their feedback. The trial results confirmed the safety and functionality of the system, with professional therapists confirming its clinical potential and its perceived benefits.Clinical assessment of Multiple Sclerosis relies heavily on the Expanded Disability Status Scale, a non-linear rating system based on physician assessment of disease progression and walking ability. This inherently makes this method both subjective and limited in repeatability. This study developed a technically derived outcome measure of posture to compare a cohort of Multiple Sclerosis and Control subjects during an Eyes-Open and Eyes-closed task. Analysing traditional sway parameters and a multiscale entropy derived complexity index of posturography showed a significant difference in medio-lateral sway between groups during the Eyes-Open condition. This technically derived outcome measure may be of clinical benefit in the longitudinal assessment of the functional impact of balance in MS cohorts and assist in the evaluation of pharmaceutical and rehabilitation interventions.We examined different methods of robotic proprioception assessment and provided comparison with the wrist position sense test gold standard assessment. The aim is to determine which of the assessments are the most reliable and would be acceptable for clinical evaluation. 31 children between six and sixteen participated in a pilot assessment trial and completed all four of the assessments. The assessments included the manual and robotic versions of the wrist position sense test, the joint position matching assessment and the psychometric threshold determination assessment. There was not a significant difference between the manual and robotic wrist position sense tests but there were significant differences with the other assessments. The study also examined the effect of age on the different assessments and found that three of the assessments, excluding the joint position matching assessment, can differentiate between children of different ages. This study concludes that the significant differences between the assessments indicates that proprioception in the wrist is complex and multifaceted.
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  • Nanosecond pulsed electric field treatment (nsPEF) is a technology-driven, resource-efficient approach fostering microalgae biorefineries for transforming them into economically viable scenarios. A processing window of 100 ns, 7 Hz, and 10 kV cm-1 significantly leveraged phototrophic Chlorella vulgaris and bacterial counts up to + 50.1 ± 12.2% and + 77.0 ± 37.4%, respectively (n = 4; p less then 0.05) in non-axenic cultures. Applying the same processing window decreased C. vulgaris (-17.1 ± 13.8%) and prokaryotic (-82.7 ± 14.6%) counts owing to alterations in the prokaryotic community diversity. Principle coordinate analysis of prokaryotic phenotypic fingerprints indicated that phenotype or metabolism related diversity changes in the prokaryotic community affected the treatment outcome. The study fosters the upsurge of industrial-scale nsPEF realization and the economic viability of microalgae biorefineries through improved process understanding and thus control. It perpetuates nsPEF applicability for microalgae feedstock production and several other applications within single-cell biorefineries in the bio-based domain.Extractives are nonstructural constituents of lignocellulosic materials available in small portions; however, their influence on the bioconversion processes cannot be disregarded. This study evaluated the effect of various concentrations of rice straw water extractives (RWE) and ethanol extractives (REE) on enzymatic hydrolysis, anaerobic digestion, and simultaneous saccharification and fermentation productivity. By increasing the RWE or REE concentration, the glucose yield did not change after 72 h of enzymatic hydrolysis. The RWE increment enhanced ethanol yield to 95.6%. However, the REE increment decreased ethanol yield to 32.1%. Adding RWE caused a considerable reduction in the accumulated biogas and changed the composition of produced biogas from 74% methane to less than 1%. By increasing the REE concentration, the accumulated biogas increased from 167.9 to 524.4 ml/g VS. According to the gas chromatography-mass spectrometry (GC/MS) results, the most abundant RWE and REE components were 3-hydroxy-Spirost-8-en-11-one and guaiazulene, respectively.
    To assess the diagnostic accuracy of phantomless dual-energy computed tomography (DECT)-based volumetric material decomposition to assess bone mineral density (BMD) of the lumbar spine for the detection of osteoporosis compared to Hounsfield unit (HU) measurements with dual x-ray absorptiometry (DXA) as reference standard.

    A total of two hundred lumbar vertebrae in 53 patients (28 men, 25 women; mean age, 52 years, range, 23-87 years) who had undergone clinically-indicated third-generation dual-source DECT and DXA within 30 days were retrospectively analyzed. For volumetric BMD assessment, dedicated DECT postprocessing software using material decomposition was applied, which enables color-coded three-dimensional mapping of the trabecular BMD distribution. Manual HU measurements were performed by defining five trabecular regions of interest (ROI) per vertebra as suggested by literature. The DXA T-score served as standard of reference (osteoporosis T < -2.5). Sensitivity, specificity and the area under the curve (AUC) were primary metrics of diagnostic accuracy.

    An optimal patient-based DECT-derived BMD cut-off of 84 mg/cm³ yielded 96 % sensitivity (22/23) and 93 % specificity (28/30) for detecting osteoporosis, while an optimal CT attenuation cut-off of 139 HU showed 65 % sensitivity (15/23) and 93 % specificity (28/30) for the detection of osteoporosis. https://www.selleckchem.com/products/Clopidogrel-bisulfate.html Overall patient-based AUC were 0.930 (volumetric DECT) and 0.790 (HU analysis) (p < .001). Pearson's product-moment correlation showed higher correlation between DECT BMD and DXA values (r=0.780) compared to HU and DXA values (r=0.528) (p < .001).

    Phantomless volumetric DECT yielded significantly more accurate BMD assessment of the lumbar spine and superior diagnostic accuracy of osteoporosis compared to HU measurements.
    Phantomless volumetric DECT yielded significantly more accurate BMD assessment of the lumbar spine and superior diagnostic accuracy of osteoporosis compared to HU measurements.
    Contrast enhanced ultrasound (CEUS) of the axilla allows preoperative identification and biopsy of the sentinel lymph node. Our aims were to evaluate the accuracy of the CEUS procedure for identifying axillary lymph node metastases preoperatively and compare the volume of axillary metastases in patients with malignant versus benign CEUS guided core biopsy at end of primary surgical treatment.

    Retrospective analysis of prospectively collected data on patients with breast cancer with normal axillary ultrasound or benign axillary FNAC undergoing preoperatively CEUS guided sentinel lymph node biopsy between 2013 and 2018.

    SLN was successfully identified by CEUS in 186 (90.7%) of patients with definitive diagnosis obtained in 163 (87.6%). Overall sensitivity was 55.77%, but significantly higher for high volume disease (77.78%) than for low volume disease (32.00%, odds ratio = 7.44, 95% CI = 2.16 to 25.62, p = .001) Specificity was 100%. NPV was 82.84% overall, 86.72% for low volume disease and 94.87 % for high volume disease. 72.4% of patients with initial malignant CEUS guided SLN core biopsy had two or more macrometastases at end of surgical treatment compared to 4.47% of patients with initial benign CEUS guided core biopsy.

    When disease was present, CEUS guided sentinel lymph node core biopsy identify nodal metastases in 55.77% of patients with normal axillary grey scale ultrasound. This study suggests that the likelihood of extensive axillary disease at end of surgical treatment is low with an initial benign CEUS guided SLN core biopsy.
    When disease was present, CEUS guided sentinel lymph node core biopsy identify nodal metastases in 55.77% of patients with normal axillary grey scale ultrasound. This study suggests that the likelihood of extensive axillary disease at end of surgical treatment is low with an initial benign CEUS guided SLN core biopsy.
    To develop and evaluate an automatic measurement model for hip joints based on anteroposterior (AP) pelvic radiography and a deep learning algorithm.

    A total of 1260 AP pelvic radiographs were included. 1060 radiographs were randomly sampled for training and validation and 200 radiographs were used as the test set. Landmarks for four commonly used parameters, such as the center-edge (CE) angle of Wiberg, Tönnis angle, sharp angle, and femoral head extrusion index (FHEI), were identified and labeled. An encoder-decoder convolutional neural network was developed to output a multi-channel heat map. Measurements were obtained through landmarks on the test set. Right and left hips were analyzed respectively. The mean of each parameter obtained by three radiologists was used as the reference standard. The Percentage of Correct Key points (PCK), intraclass correlation coefficient (ICC), Pearson correlation coefficient (r), root mean square error (RMSE), mean absolute error (MAE), and Bland-Altman plots were used to determine the performance of deep learning algorithm.
    Nanosecond pulsed electric field treatment (nsPEF) is a technology-driven, resource-efficient approach fostering microalgae biorefineries for transforming them into economically viable scenarios. A processing window of 100 ns, 7 Hz, and 10 kV cm-1 significantly leveraged phototrophic Chlorella vulgaris and bacterial counts up to + 50.1 ± 12.2% and + 77.0 ± 37.4%, respectively (n = 4; p less then 0.05) in non-axenic cultures. Applying the same processing window decreased C. vulgaris (-17.1 ± 13.8%) and prokaryotic (-82.7 ± 14.6%) counts owing to alterations in the prokaryotic community diversity. Principle coordinate analysis of prokaryotic phenotypic fingerprints indicated that phenotype or metabolism related diversity changes in the prokaryotic community affected the treatment outcome. The study fosters the upsurge of industrial-scale nsPEF realization and the economic viability of microalgae biorefineries through improved process understanding and thus control. It perpetuates nsPEF applicability for microalgae feedstock production and several other applications within single-cell biorefineries in the bio-based domain.Extractives are nonstructural constituents of lignocellulosic materials available in small portions; however, their influence on the bioconversion processes cannot be disregarded. This study evaluated the effect of various concentrations of rice straw water extractives (RWE) and ethanol extractives (REE) on enzymatic hydrolysis, anaerobic digestion, and simultaneous saccharification and fermentation productivity. By increasing the RWE or REE concentration, the glucose yield did not change after 72 h of enzymatic hydrolysis. The RWE increment enhanced ethanol yield to 95.6%. However, the REE increment decreased ethanol yield to 32.1%. Adding RWE caused a considerable reduction in the accumulated biogas and changed the composition of produced biogas from 74% methane to less than 1%. By increasing the REE concentration, the accumulated biogas increased from 167.9 to 524.4 ml/g VS. According to the gas chromatography-mass spectrometry (GC/MS) results, the most abundant RWE and REE components were 3-hydroxy-Spirost-8-en-11-one and guaiazulene, respectively. To assess the diagnostic accuracy of phantomless dual-energy computed tomography (DECT)-based volumetric material decomposition to assess bone mineral density (BMD) of the lumbar spine for the detection of osteoporosis compared to Hounsfield unit (HU) measurements with dual x-ray absorptiometry (DXA) as reference standard. A total of two hundred lumbar vertebrae in 53 patients (28 men, 25 women; mean age, 52 years, range, 23-87 years) who had undergone clinically-indicated third-generation dual-source DECT and DXA within 30 days were retrospectively analyzed. For volumetric BMD assessment, dedicated DECT postprocessing software using material decomposition was applied, which enables color-coded three-dimensional mapping of the trabecular BMD distribution. Manual HU measurements were performed by defining five trabecular regions of interest (ROI) per vertebra as suggested by literature. The DXA T-score served as standard of reference (osteoporosis T < -2.5). Sensitivity, specificity and the area under the curve (AUC) were primary metrics of diagnostic accuracy. An optimal patient-based DECT-derived BMD cut-off of 84 mg/cm³ yielded 96 % sensitivity (22/23) and 93 % specificity (28/30) for detecting osteoporosis, while an optimal CT attenuation cut-off of 139 HU showed 65 % sensitivity (15/23) and 93 % specificity (28/30) for the detection of osteoporosis. https://www.selleckchem.com/products/Clopidogrel-bisulfate.html Overall patient-based AUC were 0.930 (volumetric DECT) and 0.790 (HU analysis) (p < .001). Pearson's product-moment correlation showed higher correlation between DECT BMD and DXA values (r=0.780) compared to HU and DXA values (r=0.528) (p < .001). Phantomless volumetric DECT yielded significantly more accurate BMD assessment of the lumbar spine and superior diagnostic accuracy of osteoporosis compared to HU measurements. Phantomless volumetric DECT yielded significantly more accurate BMD assessment of the lumbar spine and superior diagnostic accuracy of osteoporosis compared to HU measurements. Contrast enhanced ultrasound (CEUS) of the axilla allows preoperative identification and biopsy of the sentinel lymph node. Our aims were to evaluate the accuracy of the CEUS procedure for identifying axillary lymph node metastases preoperatively and compare the volume of axillary metastases in patients with malignant versus benign CEUS guided core biopsy at end of primary surgical treatment. Retrospective analysis of prospectively collected data on patients with breast cancer with normal axillary ultrasound or benign axillary FNAC undergoing preoperatively CEUS guided sentinel lymph node biopsy between 2013 and 2018. SLN was successfully identified by CEUS in 186 (90.7%) of patients with definitive diagnosis obtained in 163 (87.6%). Overall sensitivity was 55.77%, but significantly higher for high volume disease (77.78%) than for low volume disease (32.00%, odds ratio = 7.44, 95% CI = 2.16 to 25.62, p = .001) Specificity was 100%. NPV was 82.84% overall, 86.72% for low volume disease and 94.87 % for high volume disease. 72.4% of patients with initial malignant CEUS guided SLN core biopsy had two or more macrometastases at end of surgical treatment compared to 4.47% of patients with initial benign CEUS guided core biopsy. When disease was present, CEUS guided sentinel lymph node core biopsy identify nodal metastases in 55.77% of patients with normal axillary grey scale ultrasound. This study suggests that the likelihood of extensive axillary disease at end of surgical treatment is low with an initial benign CEUS guided SLN core biopsy. When disease was present, CEUS guided sentinel lymph node core biopsy identify nodal metastases in 55.77% of patients with normal axillary grey scale ultrasound. This study suggests that the likelihood of extensive axillary disease at end of surgical treatment is low with an initial benign CEUS guided SLN core biopsy. To develop and evaluate an automatic measurement model for hip joints based on anteroposterior (AP) pelvic radiography and a deep learning algorithm. A total of 1260 AP pelvic radiographs were included. 1060 radiographs were randomly sampled for training and validation and 200 radiographs were used as the test set. Landmarks for four commonly used parameters, such as the center-edge (CE) angle of Wiberg, Tönnis angle, sharp angle, and femoral head extrusion index (FHEI), were identified and labeled. An encoder-decoder convolutional neural network was developed to output a multi-channel heat map. Measurements were obtained through landmarks on the test set. Right and left hips were analyzed respectively. The mean of each parameter obtained by three radiologists was used as the reference standard. The Percentage of Correct Key points (PCK), intraclass correlation coefficient (ICC), Pearson correlation coefficient (r), root mean square error (RMSE), mean absolute error (MAE), and Bland-Altman plots were used to determine the performance of deep learning algorithm.
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  • Meanwhile, the characterization of spasticity in clinically more relevant mouse models of neurological disorders, such as stroke, remains understudied. Here, we provide a brief introduction into the clinical knowledge and therapy of spasticity and an in-depth review of pre-clinical studies of spasticity in **** including the current experimental challenges for clinical translation.The persistence of HIV in the central nervous system leads to cognitive deficits in up to 50% of people living with HIV even with systemic suppression by antiretroviral treatment. The interaction of chronic inflammation with age-associated degeneration places these individuals at increased risk of accelerated aging and other neurodegenerative diseases and no treatments are available that effectively halt these processes. The adverse effects of aging and inflammation may be mediated, in part, by an increase in the expression of the p75 neurotrophin receptor (p75NTR) which shifts the balance of neurotrophin signaling toward less protective pathways. To determine if modulation of p75NTR could modify the disease process, we treated HIV gp120 transgenic **** with a small molecule ligand designed to engage p75NTR and downregulate degenerative signaling. Daily treatment with 50 mg/kg LM11A-31 for 4 months suppressed age- and genotype-dependent activation of microglia, increased microtubule associated protein-2 (MAP-2), reduced dendritic varicosities and slowed the loss of parvalbumin immunoreactive neurons in the hippocampus. An age related accumulation of microtubule associated protein Tau was identified in the hippocampus in extracellular clusters that co-expressed p75NTR suggesting a link between Tau and p75NTR. Although the significance of the relationship between p75NTR and Tau is unclear, a decrease in Tau-1 immunoreactivity as gp120 **** entered old age (>16 months) suggests that the Tau may transition to more pathological modifications; a process blocked by LM11A-31. Overall, the effects of LM11A-31 are consistent with strong neuroprotective and anti-inflammatory actions that have significant therapeutic potential.Women with catamenial epilepsy often experience increased seizure burden near the time of ovulation (periovulatory) or menstruation (perimenstrual). To date, a rodent model of chronic temporal lobe epilepsy (TLE) that exhibits similar endogenous fluctuations in seizures has not been identified. Here, we investigated whether seizure burden changes with the estrous cycle in the intrahippocampal kainic acid (IHKA) mouse model of TLE. Adult female IHKA **** and saline-injected controls were implanted with EEG electrodes in the ipsilateral hippocampus. At one and two months post-injection, 24/7 video-EEG recordings were collected and estrous cycle stage was assessed daily. Seizures were detected using a custom convolutional neural network machine learning process. Seizure burden was compared within each mouse between diestrus and combined proestrus and estrus days (pro/estrus) at two months post-injection. IHKA **** showed higher seizure burden on pro/estrus compared with diestrus, characterized by increased time in seizures and longer seizure duration. When all IHKA **** were included, no group differences were observed in seizure frequency or EEG power. However, increased baseline seizure burden on diestrus was correlated with larger cycle-associated differences, and when analyses were restricted to **** that showed the severe epilepsy typical of the IHKA model, increased seizure frequency on pro/estrus was also revealed. Controls showed no differences in EEG parameters with cycle stage. These results suggest that the stages of proestrus and estrus are associated with higher seizure burden in IHKA ****. The IHKA model may thus recapitulate at least some aspects of reproductive cycle-associated seizure clustering.AP-002 is a novel, gallium-based, anti-cancer oral compound in clinical development for cancer patients with bone metastases. We examined the effects of AP-002 on osteoclastogenesis, fusion, and osteogenesis. AP-002 exhibited a dramatic effect on osteoclast function without causing osteoclast cell death. The expression of tartrate-resistant acid phosphatase and cathepsin K mRNA levels was down-regulated in RAW264.7 cells treated with AP-002 in the presence of soluble receptor activator of NF-κB ligand. AP-002 was also found to block the fusion of osteoclasts from RAW264.7 cells. AP-002 had a similar inhibitory effect on RANKL-induced mouse primary bone marrow monocytes fusion. Human blood monocytes treated with AP-002 failed to form TRAcP/ACP5-positive cells. AP-002 caused these inhibitory effects without causing osteoclast cell death, which was in contrast to zoledronic acid controls. Furthermore, unlike zoledronic acid, AP-002 did not inhibit Rac1 activation. Gene expression analysis by microarrays showed that AP-002 significantly reverses the effects of RANKL-induced gene expression. https://www.selleckchem.com/products/pepstatin-a.html These include several key osteoclast-differentiation/function-associated genes such as Scinderin, OCSTAMP, Atp6v0d2, OSCAR, RhoU, Usp18, MMP9, and Trim30. The difference between AP-002 and zoledronic acid is also seen in its effects on osteogenesis. Osteoblast mineralization was promoted by AP-002 (0.1-3.0 μM), whereas zoledronic acid showed toxicity to osteoblasts at the concentration >0.5 μM, in the same dose range where it causes osteoclast cell death. Zoledronic acid therefore has no therapeutic window in its toxic effect on osteoclasts and osteoblasts. AP-002 promotes osteogenesis in this therapeutic window, while blocking osteoclast development. We therefore conclude that AP-002 has potential as a new anti-bone resorption agent, with a mechanism of action different compared with other currently marketed anti-bone resorption agents.Salvianolate is a compound from traditional Chinese medicine widely used in the treatment of various cardiovascular diseases. This study explored the effects of salvianolate on myocardial infarction and used tandem mass tags (TMT) to discover differentially expressed proteins. Male Sprague Dawley rats were randomly divided into the sham operation group, model group, and salvianolate group. The myocardial infarction model was established by ligating the left anterior descending coronary artery while the sham group had a sham operation. The rats were intraperitoneally injected with 2 ml of 5% glucose once a day, with 48.438 mg/kg/d salvianolate for the rats in the salvianolate group. After 4 weeks, the rats' hemodynamics were measured to evaluate cardiac function, and Masson staining assessed the area of myocardial infarction. TMT analysis was performed and validated by western blot. Salvianolate improved cardiac function after myocardial infarction, reduced the myocardial infarction area, and protected the myocardial tissue.
    Meanwhile, the characterization of spasticity in clinically more relevant mouse models of neurological disorders, such as stroke, remains understudied. Here, we provide a brief introduction into the clinical knowledge and therapy of spasticity and an in-depth review of pre-clinical studies of spasticity in mice including the current experimental challenges for clinical translation.The persistence of HIV in the central nervous system leads to cognitive deficits in up to 50% of people living with HIV even with systemic suppression by antiretroviral treatment. The interaction of chronic inflammation with age-associated degeneration places these individuals at increased risk of accelerated aging and other neurodegenerative diseases and no treatments are available that effectively halt these processes. The adverse effects of aging and inflammation may be mediated, in part, by an increase in the expression of the p75 neurotrophin receptor (p75NTR) which shifts the balance of neurotrophin signaling toward less protective pathways. To determine if modulation of p75NTR could modify the disease process, we treated HIV gp120 transgenic mice with a small molecule ligand designed to engage p75NTR and downregulate degenerative signaling. Daily treatment with 50 mg/kg LM11A-31 for 4 months suppressed age- and genotype-dependent activation of microglia, increased microtubule associated protein-2 (MAP-2), reduced dendritic varicosities and slowed the loss of parvalbumin immunoreactive neurons in the hippocampus. An age related accumulation of microtubule associated protein Tau was identified in the hippocampus in extracellular clusters that co-expressed p75NTR suggesting a link between Tau and p75NTR. Although the significance of the relationship between p75NTR and Tau is unclear, a decrease in Tau-1 immunoreactivity as gp120 mice entered old age (>16 months) suggests that the Tau may transition to more pathological modifications; a process blocked by LM11A-31. Overall, the effects of LM11A-31 are consistent with strong neuroprotective and anti-inflammatory actions that have significant therapeutic potential.Women with catamenial epilepsy often experience increased seizure burden near the time of ovulation (periovulatory) or menstruation (perimenstrual). To date, a rodent model of chronic temporal lobe epilepsy (TLE) that exhibits similar endogenous fluctuations in seizures has not been identified. Here, we investigated whether seizure burden changes with the estrous cycle in the intrahippocampal kainic acid (IHKA) mouse model of TLE. Adult female IHKA mice and saline-injected controls were implanted with EEG electrodes in the ipsilateral hippocampus. At one and two months post-injection, 24/7 video-EEG recordings were collected and estrous cycle stage was assessed daily. Seizures were detected using a custom convolutional neural network machine learning process. Seizure burden was compared within each mouse between diestrus and combined proestrus and estrus days (pro/estrus) at two months post-injection. IHKA mice showed higher seizure burden on pro/estrus compared with diestrus, characterized by increased time in seizures and longer seizure duration. When all IHKA mice were included, no group differences were observed in seizure frequency or EEG power. However, increased baseline seizure burden on diestrus was correlated with larger cycle-associated differences, and when analyses were restricted to mice that showed the severe epilepsy typical of the IHKA model, increased seizure frequency on pro/estrus was also revealed. Controls showed no differences in EEG parameters with cycle stage. These results suggest that the stages of proestrus and estrus are associated with higher seizure burden in IHKA mice. The IHKA model may thus recapitulate at least some aspects of reproductive cycle-associated seizure clustering.AP-002 is a novel, gallium-based, anti-cancer oral compound in clinical development for cancer patients with bone metastases. We examined the effects of AP-002 on osteoclastogenesis, fusion, and osteogenesis. AP-002 exhibited a dramatic effect on osteoclast function without causing osteoclast cell death. The expression of tartrate-resistant acid phosphatase and cathepsin K mRNA levels was down-regulated in RAW264.7 cells treated with AP-002 in the presence of soluble receptor activator of NF-κB ligand. AP-002 was also found to block the fusion of osteoclasts from RAW264.7 cells. AP-002 had a similar inhibitory effect on RANKL-induced mouse primary bone marrow monocytes fusion. Human blood monocytes treated with AP-002 failed to form TRAcP/ACP5-positive cells. AP-002 caused these inhibitory effects without causing osteoclast cell death, which was in contrast to zoledronic acid controls. Furthermore, unlike zoledronic acid, AP-002 did not inhibit Rac1 activation. Gene expression analysis by microarrays showed that AP-002 significantly reverses the effects of RANKL-induced gene expression. https://www.selleckchem.com/products/pepstatin-a.html These include several key osteoclast-differentiation/function-associated genes such as Scinderin, OCSTAMP, Atp6v0d2, OSCAR, RhoU, Usp18, MMP9, and Trim30. The difference between AP-002 and zoledronic acid is also seen in its effects on osteogenesis. Osteoblast mineralization was promoted by AP-002 (0.1-3.0 μM), whereas zoledronic acid showed toxicity to osteoblasts at the concentration >0.5 μM, in the same dose range where it causes osteoclast cell death. Zoledronic acid therefore has no therapeutic window in its toxic effect on osteoclasts and osteoblasts. AP-002 promotes osteogenesis in this therapeutic window, while blocking osteoclast development. We therefore conclude that AP-002 has potential as a new anti-bone resorption agent, with a mechanism of action different compared with other currently marketed anti-bone resorption agents.Salvianolate is a compound from traditional Chinese medicine widely used in the treatment of various cardiovascular diseases. This study explored the effects of salvianolate on myocardial infarction and used tandem mass tags (TMT) to discover differentially expressed proteins. Male Sprague Dawley rats were randomly divided into the sham operation group, model group, and salvianolate group. The myocardial infarction model was established by ligating the left anterior descending coronary artery while the sham group had a sham operation. The rats were intraperitoneally injected with 2 ml of 5% glucose once a day, with 48.438 mg/kg/d salvianolate for the rats in the salvianolate group. After 4 weeks, the rats' hemodynamics were measured to evaluate cardiac function, and Masson staining assessed the area of myocardial infarction. TMT analysis was performed and validated by western blot. Salvianolate improved cardiac function after myocardial infarction, reduced the myocardial infarction area, and protected the myocardial tissue.
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