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ilepsia published by Wiley Periodicals, Inc. on behalf of International League Against Epilepsy.BACKGROUND AND AIMS Tools to detect type 1 diabetes (T1D) individuals at overt cardiovascular disease (CVD) risk are scarce. We aimed to assess the usefulness of the score 'Steno Type 1 Risk Engine' (Steno-Risk) to identify T1D patients with advanced carotid atherosclerosis. MATERIAL AND METHODS T1D patients without CVD with at least one of the following were included ≥40 years, diabetic nephropathy, or diabetes duration ≥10 years with ≥1 CVD risk factor. Intima-media thickness (IMT) and plaque presence (IMT ≥1.5 mm) were assessed by standardized B-mode ultrasonography. https://www.selleckchem.com/products/AZD1480.html Steno-Risk was used to estimate 10-year risk ( less then 10% low; 10%-20% moderate; ≥20% high risk). Associations between Steno-Risk and preclinical atherosclerosis were assessed after adjusting for other CVD risk factors. RESULTS We evaluated 302 patients (55% men, age 47.8 ± 9.8 years, T1D duration 26.3 ± 9.3 years). The prevalence of carotid plaque and ≥2 plaques were 36.4% and 19.2%, respectively; without sex differences. Age (57.4 ± 7.4 vs 37.1 ± 6.2 years), T1D duration (31.3 ± 10.4 vs 21.5 ± 7.1 years), hypertension (52.3% vs 6.3%), nephropathy (25.6% vs 5.1%) and retinopathy (53.5% vs 32.9%) were higher in high-risk (n = 86) vs low-risk participants (n = 79; P less then .001 for all). Preclinical atherosclerosis (IMT and plaque) increased in parallel with Steno-Risk (P less then .001). In logistic regression analysis, both age ≥40 years and Steno-Risk ≥20% were associated with the presence of plaque (OR 4.22 [1.57-11.36] and 3.79 [1.61-6.80]; respectively), but only high Steno-Risk remained independently associated with ≥2 plaques (OR 3.31 [1.61-6.80]). CONCLUSION Steno-Risk is independently associated with preclinical atherosclerosis. Further studies are needed to ascertain its usefulness in this high-risk population. © 2020 John Wiley & Sons Ltd.The management of nail psoriasis is an arduous task owing to the disease manifestations and anatomical structure of the nail plate. Although various treatment therapies are available for nail psoriasis, topical therapy is contemplated as one of the most favorable options as systemic therapies are accompanied by numerous side effects that result in patient incompliance. The topical formulations including creams, gels, ointments, and nail lacquers have been used as delivery systems for various antipsoriatic drugs. Among these, nail lacquers emerge to be promising and patient friendly formulations. However, the major defiance with topical delivery is inefficacious penetration of drug through impenetrable keratinized nail plate to reach the target sites nail matrix and nail bed. Therefore, in order to obtain effectual drug delivery systems that can retain/remain on the nail plate for a prolonged period of time and deliver the drug across it, systematic approaches like quality by design (QbD) need to be followed so that the desired quality can be "built in" the system rather than to rely solely on retrograde evaluation. Furthermore, more advances in research are still required to develop a validated animal model so as to determine the efficacy of the formulation and to establish a mathematical model that can help in predicting the desirable attributes of the formulation and permeation of various molecules through the nail plate. © 2020 The International Society of Dermatology.Colorectal cancer (CRC) is a common digestive tract malignancy, which is characterized by high mortality, morbidity, and poor prognosis. Replication factor C subunit 2 (RFC2), one RFC family member, was reported to be related to various malignancies and plays an important role in proliferation, invasion, and metastasis. Nonetheless, the RFC2 biological role within CRC is still unknown. RFC2 expression profiles in CRC tissues were collected based on The Cancer Genome Atlas database, whereas miR-744 and RFC2 expression levels were detected in human CRC tissues. miR-744 and RFC2 effects on the proliferation of CRC were assessed both in vivo and in vitro. RFC2 was recognized to be a direct miR-744 target through luciferase reporter assay. RFC2 upregulation was observed within CRC tissues, and a high RFC2 level showed a correlation with poor clinicopathological symptoms. RFC2 knockdown inhibited CRC cell proliferation through promoting cell cycle arrest at the G1 phase, which was achieved by cyclin E2 (CCNE2) downregulation in vivo and in vitro. miR-744 was identified to be the tumor suppressor microRNA, which targeted RFC2 directly for inhibiting the proliferation of CRC cells both in vivo and in vitro. miR-744 downregulation was detected within CRC tissue, and messenger RNA expression showed a negative correlation with RFC2 expression within CRC tissues. Our study demonstrates that the miR-744/RFC2/CCNE2 axis potentially provides a candidate for a treatment strategy for CRC. © 2020 Wiley Periodicals, Inc.BACKGROUND Chronic pulmonary infection is a hallmark of lung disease in cystic fibrosis. Infections dominated by organisms of the Burkholderia cepacia complex, a group of at least 18 closely-related species of gram-negative bacteria, are particularly difficult to treat. These infections may be associated with a fulminant necrotising pneumonia. Burkholderia cepacia complex bacteria are resistant to many common antibiotics and able to acquire resistance against many more. Following patient segregation in cystic fibrosis medical care, the more virulent epidemic strains are not as frequent, and new infections are more likely to be with less virulent environmentally-acquired strains. Although evidence-based guidelines exist for treating respiratory exacerbations involving Pseudomonas aeruginosa, these cannot be extended to Burkholderia cepacia complex infections. This review, which is an update of a previous review, aims to assess the available trial evidence for the choice and application of treatments for these likely to increase as the cystic fibrosis population ages; and managing and treating these infections will become more important. There is a lack of trial evidence to guide decision making and no conclusions can be drawn from this review about the optimal antibiotic regimens for people with cystic fibrosis who have chronic Burkholderia cepacia complex infections. Clinicians must continue to assess each person individually, taking into account in vitro antibiotic susceptibility data, previous clinical responses and their own experience. Multicentre randomised clinical trials are needed to assess the effectiveness of different antibiotic regimens in people with cystic fibrosis infected with organisms of the Burkholderia cepacia complex. Copyright © 2020 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.
ilepsia published by Wiley Periodicals, Inc. on behalf of International League Against Epilepsy.BACKGROUND AND AIMS Tools to detect type 1 diabetes (T1D) individuals at overt cardiovascular disease (CVD) risk are scarce. We aimed to assess the usefulness of the score 'Steno Type 1 Risk Engine' (Steno-Risk) to identify T1D patients with advanced carotid atherosclerosis. MATERIAL AND METHODS T1D patients without CVD with at least one of the following were included ≥40 years, diabetic nephropathy, or diabetes duration ≥10 years with ≥1 CVD risk factor. Intima-media thickness (IMT) and plaque presence (IMT ≥1.5 mm) were assessed by standardized B-mode ultrasonography. https://www.selleckchem.com/products/AZD1480.html Steno-Risk was used to estimate 10-year risk ( less then 10% low; 10%-20% moderate; ≥20% high risk). Associations between Steno-Risk and preclinical atherosclerosis were assessed after adjusting for other CVD risk factors. RESULTS We evaluated 302 patients (55% men, age 47.8 ± 9.8 years, T1D duration 26.3 ± 9.3 years). The prevalence of carotid plaque and ≥2 plaques were 36.4% and 19.2%, respectively; without sex differences. Age (57.4 ± 7.4 vs 37.1 ± 6.2 years), T1D duration (31.3 ± 10.4 vs 21.5 ± 7.1 years), hypertension (52.3% vs 6.3%), nephropathy (25.6% vs 5.1%) and retinopathy (53.5% vs 32.9%) were higher in high-risk (n = 86) vs low-risk participants (n = 79; P less then .001 for all). Preclinical atherosclerosis (IMT and plaque) increased in parallel with Steno-Risk (P less then .001). In logistic regression analysis, both age ≥40 years and Steno-Risk ≥20% were associated with the presence of plaque (OR 4.22 [1.57-11.36] and 3.79 [1.61-6.80]; respectively), but only high Steno-Risk remained independently associated with ≥2 plaques (OR 3.31 [1.61-6.80]). CONCLUSION Steno-Risk is independently associated with preclinical atherosclerosis. Further studies are needed to ascertain its usefulness in this high-risk population. © 2020 John Wiley & Sons Ltd.The management of nail psoriasis is an arduous task owing to the disease manifestations and anatomical structure of the nail plate. Although various treatment therapies are available for nail psoriasis, topical therapy is contemplated as one of the most favorable options as systemic therapies are accompanied by numerous side effects that result in patient incompliance. The topical formulations including creams, gels, ointments, and nail lacquers have been used as delivery systems for various antipsoriatic drugs. Among these, nail lacquers emerge to be promising and patient friendly formulations. However, the major defiance with topical delivery is inefficacious penetration of drug through impenetrable keratinized nail plate to reach the target sites nail matrix and nail bed. Therefore, in order to obtain effectual drug delivery systems that can retain/remain on the nail plate for a prolonged period of time and deliver the drug across it, systematic approaches like quality by design (QbD) need to be followed so that the desired quality can be "built in" the system rather than to rely solely on retrograde evaluation. Furthermore, more advances in research are still required to develop a validated animal model so as to determine the efficacy of the formulation and to establish a mathematical model that can help in predicting the desirable attributes of the formulation and permeation of various molecules through the nail plate. © 2020 The International Society of Dermatology.Colorectal cancer (CRC) is a common digestive tract malignancy, which is characterized by high mortality, morbidity, and poor prognosis. Replication factor C subunit 2 (RFC2), one RFC family member, was reported to be related to various malignancies and plays an important role in proliferation, invasion, and metastasis. Nonetheless, the RFC2 biological role within CRC is still unknown. RFC2 expression profiles in CRC tissues were collected based on The Cancer Genome Atlas database, whereas miR-744 and RFC2 expression levels were detected in human CRC tissues. miR-744 and RFC2 effects on the proliferation of CRC were assessed both in vivo and in vitro. RFC2 was recognized to be a direct miR-744 target through luciferase reporter assay. RFC2 upregulation was observed within CRC tissues, and a high RFC2 level showed a correlation with poor clinicopathological symptoms. RFC2 knockdown inhibited CRC cell proliferation through promoting cell cycle arrest at the G1 phase, which was achieved by cyclin E2 (CCNE2) downregulation in vivo and in vitro. miR-744 was identified to be the tumor suppressor microRNA, which targeted RFC2 directly for inhibiting the proliferation of CRC cells both in vivo and in vitro. miR-744 downregulation was detected within CRC tissue, and messenger RNA expression showed a negative correlation with RFC2 expression within CRC tissues. Our study demonstrates that the miR-744/RFC2/CCNE2 axis potentially provides a candidate for a treatment strategy for CRC. © 2020 Wiley Periodicals, Inc.BACKGROUND Chronic pulmonary infection is a hallmark of lung disease in cystic fibrosis. Infections dominated by organisms of the Burkholderia cepacia complex, a group of at least 18 closely-related species of gram-negative bacteria, are particularly difficult to treat. These infections may be associated with a fulminant necrotising pneumonia. Burkholderia cepacia complex bacteria are resistant to many common antibiotics and able to acquire resistance against many more. Following patient segregation in cystic fibrosis medical care, the more virulent epidemic strains are not as frequent, and new infections are more likely to be with less virulent environmentally-acquired strains. Although evidence-based guidelines exist for treating respiratory exacerbations involving Pseudomonas aeruginosa, these cannot be extended to Burkholderia cepacia complex infections. This review, which is an update of a previous review, aims to assess the available trial evidence for the choice and application of treatments for these likely to increase as the cystic fibrosis population ages; and managing and treating these infections will become more important. There is a lack of trial evidence to guide decision making and no conclusions can be drawn from this review about the optimal antibiotic regimens for people with cystic fibrosis who have chronic Burkholderia cepacia complex infections. Clinicians must continue to assess each person individually, taking into account in vitro antibiotic susceptibility data, previous clinical responses and their own experience. Multicentre randomised clinical trials are needed to assess the effectiveness of different antibiotic regimens in people with cystic fibrosis infected with organisms of the Burkholderia cepacia complex. Copyright © 2020 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.0 Commenti 0 condivisioni 36 Views 0 AnteprimaEffettua l'accesso per mettere mi piace, condividere e commentare! -
Collectively, these results help elucidate the crucial roles of TLRs in the immune response of housefly and provide a foundation for further understanding of innate immunity of the housefly. https://www.selleckchem.com/products/PHA-665752.html Hydroxyapatite (HA) nanoparticles are promising materials for enzyme immobilization, since they provide a high specific surface area for enzyme loading and can also be modified with metal ions (HA-Me2+) to enable interaction with proteins. The adsorption of proteins on HA-Me2+ has been explored for purification purposes, while the use of this material as a support for the immobilization of enzymes remains to be further investigated. Xylanase is an enzyme of considerable industrial interest, being used in the biofuel, pharmaceutical, pulp, and food & beverage sectors, among others. The immobilization of xylanase can enable recovery of the enzyme after biocatalysis, so that it can be reused several times, hence reducing the costs of industrial processes. Here, a systematic study was performed of the immobilization of xylanase on HA nanoparticles modified with metal ions (Cu2+ and Ni2+). A simple, fast, and efficient immobilization protocol was established using statistical experimental design as a tool, generating derivatives by interactions involving complexation of metals of the support with electron donor groups of the enzyme. The affinity towards xylanase was higher for the HA-Cu2+ support, compared to HA and HA-Ni2+. The pH and temperature profiles for the immobilized enzyme activity remained the same as for the soluble enzyme, indicating that the xylanase did not undergo major changes in its conformational state after immobilization. The HA-Cu2+ support was the most effective in reuse assays, retaining up to 80% activity in the second cycle. The results showed that xylanase could be immobilized on HA nanoparticles modified with Cu2+ and Ni2+ metal ions, using a simple and effective method, indicating the promising potential of the system for applications in different industrial processes. Two drugs that pregnant women (with hypothyroidism) may use during pregnancy include Isoxsuprine hydrochloride (ISO) and levothyroxine (LEV); ISO to reduce uterine contractions and LEV for the treatment of hypothyroidism. In the current work, we explored the mechanism of binding affinity between the above drugs and antioxidant enzyme Bovine Liver Catalase (BLC). The experimental results confirmed that both drugs could bind with ****to form drug-****complexes but LEV showed a higher binding affinity toward enzyme. The binding constants of LEV-and ISO-****were 0.42 × 105 and 0.13 × 104 M-1 at 310 K, respectively. LEV enhanced the catalase activity but the enzymatic activity of ****reduced gradually in the presence of ISO. Both drugs were able to induce conformational changes in the ****structure. The results of the molecular docking investigations confirmed the experimental data and showed that the main binding forces in the LEV-****and ISO-****systems were hydrogen bond and hydrophobic force. The best binding site of both drugs on ****is located at a cavity among the wrapping domain, N-Terminal arm, and β-barrel. V.The effect of putrescine on the dynamics, conformation, and kinetics of acid phosphatase investigated via different experimental and theoretical methods. The Stern-Volmer constants (Ksv) for the acid phosphatase- putrescine compound was obtained at different temperatures. Therefore, putrescine quenched the intensity of the enzyme via the static method. Gibbs free energy displayed which binding process was spontaneous. MD simulation, docking method, and thermodynamic parameters revealed the van der Waals forces and hydrogen bonding that had the specific interaction in unfolding the compound. After putrescine binding, the Vmax amounts of acid phosphatase without changed, and the value of kcat/Km increased. The Tm the acid phosphatase-putrescine compound was decreased. Presumably because of more surface hydrophilicity and further H-bond formation underlying the putrescine modification. As confirmed by fluorescence spectra and UV-Visible spectroscopy. Circular dichroism (CD) and UV absorption investigations also demonstrated which binding of putrescine to acid phosphatase led to microenvironmental variations around the protein. Therefore, putrescine cause changes in its structure and function. The results, therefore, showed the effect of putrescine was because of its kosmotropic specifications. Molecular dynamics simulation and Molecular docking results further confirmed the results obtained by CD and spectroscopy experiments. V.Essential oils are natural antimicrobils and have been frequently incorporated into edible films aimed at extending shelf-life of food products. In this study, thymol nanoemulsions co-emulsified by natural emulsifiers (i.e., blend of gelatin and soy lecithin) were prepared and incorporated into gelatin films. The physical and antimicrobial properties of gelatin films were characterized. Thymol nanoemulsions incorporation increased the water vapor permeability and elongation at break of gelatin film, but decreased the moisture content and tensile strength. With nano-scale and uniform particles, the surface of films containing thymol nanoemulsions was smooth and continuous. Due to the hydrophobic property of lecithin and thymol, the water contact angle of gelatin film increased to above 90°. Moreover, sustained release of thymol from gelatin films was also observed, and these films exhibited effective inhibition activities against both Gram-positive and Gram-negative bacteria. Therefore, gelatin films containing thymol nanoemulsions co-emulsified by gelatin and lecithin may have great potentials to be applied as novel and GRAS biodegradable packaging materials to achieve the goal of extending the shelf life of food products. Channel catfish (Ictalurus punctatus) are one of the most important commercial freshwater fish in the world. China has been the major producer and consumer of channel catfish following the rapid development in the past three decades. In the present study, a novel orthologous myostatin gene, IpMSTNa, of channel catfish was identified based on homology cloning and genome locating. Multiple sequence alignments and gene structure analyses showed that the IpMSTNa gene and its deduced protein presented similar architectures to other known vertebrates. Phylogenetic and synteny analyses indicated that IpMSTNa belongs to MSTN1 orthologues. Pro-IpMSTNa protein is a typical disulphide-linked homodimer, with each chain containing an N-terminal pro-domain and a C-terminal unmatured GF domain, while pro-IpMSTNa present some significant differences in secondary structure and three-dimensional substances with pro-IpMSTNb. Relative expression level of the IpMSTNa gene upregulated rapidly and decreased dramatically during the embryonic and larval developmental stages, respectively.
Collectively, these results help elucidate the crucial roles of TLRs in the immune response of housefly and provide a foundation for further understanding of innate immunity of the housefly. https://www.selleckchem.com/products/PHA-665752.html Hydroxyapatite (HA) nanoparticles are promising materials for enzyme immobilization, since they provide a high specific surface area for enzyme loading and can also be modified with metal ions (HA-Me2+) to enable interaction with proteins. The adsorption of proteins on HA-Me2+ has been explored for purification purposes, while the use of this material as a support for the immobilization of enzymes remains to be further investigated. Xylanase is an enzyme of considerable industrial interest, being used in the biofuel, pharmaceutical, pulp, and food & beverage sectors, among others. The immobilization of xylanase can enable recovery of the enzyme after biocatalysis, so that it can be reused several times, hence reducing the costs of industrial processes. Here, a systematic study was performed of the immobilization of xylanase on HA nanoparticles modified with metal ions (Cu2+ and Ni2+). A simple, fast, and efficient immobilization protocol was established using statistical experimental design as a tool, generating derivatives by interactions involving complexation of metals of the support with electron donor groups of the enzyme. The affinity towards xylanase was higher for the HA-Cu2+ support, compared to HA and HA-Ni2+. The pH and temperature profiles for the immobilized enzyme activity remained the same as for the soluble enzyme, indicating that the xylanase did not undergo major changes in its conformational state after immobilization. The HA-Cu2+ support was the most effective in reuse assays, retaining up to 80% activity in the second cycle. The results showed that xylanase could be immobilized on HA nanoparticles modified with Cu2+ and Ni2+ metal ions, using a simple and effective method, indicating the promising potential of the system for applications in different industrial processes. Two drugs that pregnant women (with hypothyroidism) may use during pregnancy include Isoxsuprine hydrochloride (ISO) and levothyroxine (LEV); ISO to reduce uterine contractions and LEV for the treatment of hypothyroidism. In the current work, we explored the mechanism of binding affinity between the above drugs and antioxidant enzyme Bovine Liver Catalase (BLC). The experimental results confirmed that both drugs could bind with BLC to form drug-BLC complexes but LEV showed a higher binding affinity toward enzyme. The binding constants of LEV-and ISO-BLC were 0.42 × 105 and 0.13 × 104 M-1 at 310 K, respectively. LEV enhanced the catalase activity but the enzymatic activity of BLC reduced gradually in the presence of ISO. Both drugs were able to induce conformational changes in the BLC structure. The results of the molecular docking investigations confirmed the experimental data and showed that the main binding forces in the LEV-BLC and ISO-BLC systems were hydrogen bond and hydrophobic force. The best binding site of both drugs on BLC is located at a cavity among the wrapping domain, N-Terminal arm, and β-barrel. V.The effect of putrescine on the dynamics, conformation, and kinetics of acid phosphatase investigated via different experimental and theoretical methods. The Stern-Volmer constants (Ksv) for the acid phosphatase- putrescine compound was obtained at different temperatures. Therefore, putrescine quenched the intensity of the enzyme via the static method. Gibbs free energy displayed which binding process was spontaneous. MD simulation, docking method, and thermodynamic parameters revealed the van der Waals forces and hydrogen bonding that had the specific interaction in unfolding the compound. After putrescine binding, the Vmax amounts of acid phosphatase without changed, and the value of kcat/Km increased. The Tm the acid phosphatase-putrescine compound was decreased. Presumably because of more surface hydrophilicity and further H-bond formation underlying the putrescine modification. As confirmed by fluorescence spectra and UV-Visible spectroscopy. Circular dichroism (CD) and UV absorption investigations also demonstrated which binding of putrescine to acid phosphatase led to microenvironmental variations around the protein. Therefore, putrescine cause changes in its structure and function. The results, therefore, showed the effect of putrescine was because of its kosmotropic specifications. Molecular dynamics simulation and Molecular docking results further confirmed the results obtained by CD and spectroscopy experiments. V.Essential oils are natural antimicrobils and have been frequently incorporated into edible films aimed at extending shelf-life of food products. In this study, thymol nanoemulsions co-emulsified by natural emulsifiers (i.e., blend of gelatin and soy lecithin) were prepared and incorporated into gelatin films. The physical and antimicrobial properties of gelatin films were characterized. Thymol nanoemulsions incorporation increased the water vapor permeability and elongation at break of gelatin film, but decreased the moisture content and tensile strength. With nano-scale and uniform particles, the surface of films containing thymol nanoemulsions was smooth and continuous. Due to the hydrophobic property of lecithin and thymol, the water contact angle of gelatin film increased to above 90°. Moreover, sustained release of thymol from gelatin films was also observed, and these films exhibited effective inhibition activities against both Gram-positive and Gram-negative bacteria. Therefore, gelatin films containing thymol nanoemulsions co-emulsified by gelatin and lecithin may have great potentials to be applied as novel and GRAS biodegradable packaging materials to achieve the goal of extending the shelf life of food products. Channel catfish (Ictalurus punctatus) are one of the most important commercial freshwater fish in the world. China has been the major producer and consumer of channel catfish following the rapid development in the past three decades. In the present study, a novel orthologous myostatin gene, IpMSTNa, of channel catfish was identified based on homology cloning and genome locating. Multiple sequence alignments and gene structure analyses showed that the IpMSTNa gene and its deduced protein presented similar architectures to other known vertebrates. Phylogenetic and synteny analyses indicated that IpMSTNa belongs to MSTN1 orthologues. Pro-IpMSTNa protein is a typical disulphide-linked homodimer, with each chain containing an N-terminal pro-domain and a C-terminal unmatured GF domain, while pro-IpMSTNa present some significant differences in secondary structure and three-dimensional substances with pro-IpMSTNb. Relative expression level of the IpMSTNa gene upregulated rapidly and decreased dramatically during the embryonic and larval developmental stages, respectively.0 Commenti 0 condivisioni 58 Views 0 Anteprima -
Practitioners should be aware of the safe injection techniques, potential complications, and management of these complications for a good clinical practice. © 2020 Wiley Periodicals, Inc.BACKGROUND Augmented reality (AR) is a simulation of a three-dimensional environment created using hardware and software that provides the user with realistic experiences and ability to interact. The aim of the study was to evaluate the impact of AR simulator on the perception of learning and acute stress level in students administering local anaesthesia to paediatric patients relative to standard teaching methods. MATERIAL AND METHODS The prospective study included 21 fourth- and fifth-year students enrolled in 5-year dental programme. In addition to conventional training, the students of the study group used the augmented reality simulator in a dental office 2 hours weekly in 2 weeks. The level of salivary cortisol was measured before and after the anaesthetic procedure as one of the indicators of acute stress. RESULTS A statistically significant shorter time to perform infiltrative anaesthesia technique for the anterior superior alveolar nerve was observed in students using the AR technique (28.91 ± 9.06 seconds in the study group and 39.80 ± 9.29 seconds in the control group). The level of cortisol before and after anaesthesia was statistically significant in all subjects (cortisol concentration was 0.53 μg/dL before anaesthesia and 2.44 μg/dL after the procedure); however, there was no statistically significant difference between the groups. CONCLUSION The AR concept may influence better manipulation and control of the syringe in students administering their first anaesthetic injection to paediatric patients, but may not reduce acute stress. © 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.AIM The TAXCO study was designed to compare the degree of neointimal coverage and the prevalence of malapposition at 6 months subsequent to implantation of ultrathin biodegradable polymer-coated sirolimus-eluting stents (SES) and durable polymer-coated everolimus-eluting stents (EES) of thin strut thickness using optical coherence tomography (OCT). METHODS The TAXCO study included a total of 42 patients who gave consent and underwent OCT examination between August 2017 and September 2017. https://www.selleckchem.com/products/mrt68921.html Of 42, five patients' OCT examinations were of insufficient quality for quantitative analysis. Thus, the OCT analysis group consisted of 37 patients. Among them, 16 patients were treated with Xience (Abbott Vascular) and 21 with Tetriflex (Sahajanand Medical Technologies Pvt. Ltd., Surat, India), 6 (±1) months earlier at our institution. The OCT was performed using a C7 Dragonfly™ imaging catheter (St. Jude Medical Inc.). All OCT images were analyzed at an independent core laboratory (Cardiovascular Research Center, São Paulo, Brazil) by analysts who were blinded to patient and procedural information. RESULTS A total of 763 crosssections (6,882 struts) were analyzed in Xience group, and 1,127 crosssections (9,968 struts) in Tetriflex group. At 6 months, on per-lesion basis, no significant differences were observed between Xience group and Tetriflex group in mean percentage of uncovered struts (1.87 ± 3.86 vs. 2.42 ± 3.46, p = .137) and malapposed struts (0.05 ± 0.2 vs. 0.21 ± 0.69, p = .302). Strut-level neointimal thickness also did not differ between Xience group and Tetriflex group (0.18 ± 0.12 vs. 0.14 ± 0.08 mm, p = .286). CONCLUSION This OCT study found no significant difference in strut coverage and neointimal thickness at 6 months after implantation of biodegradable polymer-coated Tetriflex, when compared with durable polymer-coated Xience. © 2020 The Authors. Catheterization and Cardiovascular Interventions published by Wiley Periodicals, Inc.INTRODUCTION Aging is an inevitable process in life that can pose unsatisfactory changes in appearance. Recently, rejuvenation surgeries have opened an exciting new window toward people who are vulnerable according to their facial appearance. Periocular plastic microsurgeries are among the most common aesthetic surgeries with various outcomes. The current study was aimed to compare outcomes of blepharoplasty with and without peeling regarding lower eyelid rejuvenation. METHODS This is a randomized clinical trial study conducted on 30-patients referred for inferior lid rejuvenation in 2017-18. Patients were randomly divided into two 15-member subgroups of microinvasive blepharoplasty with and without peeling. Peeling for the group underwent blepharopeeling was performed all over the inferior periocular region using Phenol 89%. Then, skin and underlying muscle were incised superficially, and underlying fat tissue was excised. The other group underwent blepharoplasty without peeling. Patients were followed daily for 2 months to assess complications, patients' and physicians' satisfaction. RESULTS Two assessed groups were not statistically different regarding age and gender distribution (P-value = .417 and .666, respectively). Considering patients' opinion, symmetry, scar formation, skin laxity, swelling, and total satisfaction score were not different between two groups (P-value > .05) while physicians presented similar outcomes except for better scar formation status of peeling add-on therapy (P-value = .042). Rate of adverse effects was significantly higher among those under blepharoplasty plus peeling treatment (P-value less then .05). CONCLUSION Outcomes of blepharoplasty alone versus blepharoplasty plus peeling were not significantly different regarding both patients' and physicians' assessments in general while fewer complications due to blepharoplasty without peeling were presented. © 2020 Wiley Periodicals LLC.OBJECTIVE To evaluate the impact of increased pulmonary artery systolic pressure (PASP) on outcomes after transcatheter aortic valve replacement (TAVR). METHODS A total of 242 patients who underwent TAVR were retrospectively reviewed. Transthoracic echocardiography estimated PASP. The cohorts were divided into three groups according to the numerical change of PASP; Increased (post-TAVR PASP at 1 month minus pre-TAVR PASP, ≥ + 5 mmHg; n = 52), No change (-5 to +5 mmHg; n = 86) and Decreased (≤ -5 mmHg; n = 104). Patient demographics and clinical outcomes until 1 year were evaluated. Logistic regression model was used for multivariate risk analysis. RESULTS At 1 year, the Increased group showed higher mortality (21 ± 6%) than the No change group (5 ± 2%) (hazard ratio [HR] 4.8, 95% confidence interval [CI] 1.7-13.5; p 50 mm (OR 2.2, 95% CI 1.1-4.6; p = .04), and the increased PASP remained an independent predictor of 1-year all-cause mortality (HR; 2.7, 95% CI 1.0-6.8; p = .04). CONCLUSIONS Regardless of the baseline PASP, patients with increased PASP at 1 month after successful TAVR were at higher risk of mortality and rehospitalization within 1 year.
Practitioners should be aware of the safe injection techniques, potential complications, and management of these complications for a good clinical practice. © 2020 Wiley Periodicals, Inc.BACKGROUND Augmented reality (AR) is a simulation of a three-dimensional environment created using hardware and software that provides the user with realistic experiences and ability to interact. The aim of the study was to evaluate the impact of AR simulator on the perception of learning and acute stress level in students administering local anaesthesia to paediatric patients relative to standard teaching methods. MATERIAL AND METHODS The prospective study included 21 fourth- and fifth-year students enrolled in 5-year dental programme. In addition to conventional training, the students of the study group used the augmented reality simulator in a dental office 2 hours weekly in 2 weeks. The level of salivary cortisol was measured before and after the anaesthetic procedure as one of the indicators of acute stress. RESULTS A statistically significant shorter time to perform infiltrative anaesthesia technique for the anterior superior alveolar nerve was observed in students using the AR technique (28.91 ± 9.06 seconds in the study group and 39.80 ± 9.29 seconds in the control group). The level of cortisol before and after anaesthesia was statistically significant in all subjects (cortisol concentration was 0.53 μg/dL before anaesthesia and 2.44 μg/dL after the procedure); however, there was no statistically significant difference between the groups. CONCLUSION The AR concept may influence better manipulation and control of the syringe in students administering their first anaesthetic injection to paediatric patients, but may not reduce acute stress. © 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.AIM The TAXCO study was designed to compare the degree of neointimal coverage and the prevalence of malapposition at 6 months subsequent to implantation of ultrathin biodegradable polymer-coated sirolimus-eluting stents (SES) and durable polymer-coated everolimus-eluting stents (EES) of thin strut thickness using optical coherence tomography (OCT). METHODS The TAXCO study included a total of 42 patients who gave consent and underwent OCT examination between August 2017 and September 2017. https://www.selleckchem.com/products/mrt68921.html Of 42, five patients' OCT examinations were of insufficient quality for quantitative analysis. Thus, the OCT analysis group consisted of 37 patients. Among them, 16 patients were treated with Xience (Abbott Vascular) and 21 with Tetriflex (Sahajanand Medical Technologies Pvt. Ltd., Surat, India), 6 (±1) months earlier at our institution. The OCT was performed using a C7 Dragonfly™ imaging catheter (St. Jude Medical Inc.). All OCT images were analyzed at an independent core laboratory (Cardiovascular Research Center, São Paulo, Brazil) by analysts who were blinded to patient and procedural information. RESULTS A total of 763 crosssections (6,882 struts) were analyzed in Xience group, and 1,127 crosssections (9,968 struts) in Tetriflex group. At 6 months, on per-lesion basis, no significant differences were observed between Xience group and Tetriflex group in mean percentage of uncovered struts (1.87 ± 3.86 vs. 2.42 ± 3.46, p = .137) and malapposed struts (0.05 ± 0.2 vs. 0.21 ± 0.69, p = .302). Strut-level neointimal thickness also did not differ between Xience group and Tetriflex group (0.18 ± 0.12 vs. 0.14 ± 0.08 mm, p = .286). CONCLUSION This OCT study found no significant difference in strut coverage and neointimal thickness at 6 months after implantation of biodegradable polymer-coated Tetriflex, when compared with durable polymer-coated Xience. © 2020 The Authors. Catheterization and Cardiovascular Interventions published by Wiley Periodicals, Inc.INTRODUCTION Aging is an inevitable process in life that can pose unsatisfactory changes in appearance. Recently, rejuvenation surgeries have opened an exciting new window toward people who are vulnerable according to their facial appearance. Periocular plastic microsurgeries are among the most common aesthetic surgeries with various outcomes. The current study was aimed to compare outcomes of blepharoplasty with and without peeling regarding lower eyelid rejuvenation. METHODS This is a randomized clinical trial study conducted on 30-patients referred for inferior lid rejuvenation in 2017-18. Patients were randomly divided into two 15-member subgroups of microinvasive blepharoplasty with and without peeling. Peeling for the group underwent blepharopeeling was performed all over the inferior periocular region using Phenol 89%. Then, skin and underlying muscle were incised superficially, and underlying fat tissue was excised. The other group underwent blepharoplasty without peeling. Patients were followed daily for 2 months to assess complications, patients' and physicians' satisfaction. RESULTS Two assessed groups were not statistically different regarding age and gender distribution (P-value = .417 and .666, respectively). Considering patients' opinion, symmetry, scar formation, skin laxity, swelling, and total satisfaction score were not different between two groups (P-value > .05) while physicians presented similar outcomes except for better scar formation status of peeling add-on therapy (P-value = .042). Rate of adverse effects was significantly higher among those under blepharoplasty plus peeling treatment (P-value less then .05). CONCLUSION Outcomes of blepharoplasty alone versus blepharoplasty plus peeling were not significantly different regarding both patients' and physicians' assessments in general while fewer complications due to blepharoplasty without peeling were presented. © 2020 Wiley Periodicals LLC.OBJECTIVE To evaluate the impact of increased pulmonary artery systolic pressure (PASP) on outcomes after transcatheter aortic valve replacement (TAVR). METHODS A total of 242 patients who underwent TAVR were retrospectively reviewed. Transthoracic echocardiography estimated PASP. The cohorts were divided into three groups according to the numerical change of PASP; Increased (post-TAVR PASP at 1 month minus pre-TAVR PASP, ≥ + 5 mmHg; n = 52), No change (-5 to +5 mmHg; n = 86) and Decreased (≤ -5 mmHg; n = 104). Patient demographics and clinical outcomes until 1 year were evaluated. Logistic regression model was used for multivariate risk analysis. RESULTS At 1 year, the Increased group showed higher mortality (21 ± 6%) than the No change group (5 ± 2%) (hazard ratio [HR] 4.8, 95% confidence interval [CI] 1.7-13.5; p 50 mm (OR 2.2, 95% CI 1.1-4.6; p = .04), and the increased PASP remained an independent predictor of 1-year all-cause mortality (HR; 2.7, 95% CI 1.0-6.8; p = .04). CONCLUSIONS Regardless of the baseline PASP, patients with increased PASP at 1 month after successful TAVR were at higher risk of mortality and rehospitalization within 1 year.0 Commenti 0 condivisioni 32 Views 0 Anteprima -
We have developed a rapid and sensitive single-well dual-parametric method introduced in linked RAS nucleotide exchange and RAS/RAF-RBD interaction assays. RAS mutations are frequent drivers of multiple different human cancers, but the development of therapeutic strategies has been challenging. Traditionally, efforts to disrupt the RAS function have focused on nucleotide exchange inhibitors, GTP-RAS interaction inhibitors, and activators increasing GTPase activity of mutant RAS proteins. As the amount of biological knowledge grows, targeted biochemical assays enabling high-throughput screening have become increasingly interesting. https://www.selleckchem.com/products/aebsf-hcl.html We have previously introduced a homogeneous quenching resonance energy transfer (QRET) assay for nucleotide binding studies with RAS and heterotrimeric G proteins. Here, we introduce a novel homogeneous signaling technique called QTR-FRET, which combine QRET technology and time-resolved Förster resonance energy transfer (TR-FRET). The dual-parametric QTR-FRET technique enables the linking of guanine nucleotide exchange factor-induced Eu3+-GTP association to RAS, monitored at 615 nm, and subsequent Eu3+-GTP-loaded RAS interaction with RAF-RBD-Alexa680 monitored at 730 nm. Both reactions were monitored in a single-well assay applicable for inhibitor screening and real-time reaction monitoring. This homogeneous assay enables separable detection of both nucleotide exchange and RAS/RAF interaction inhibitors using low nanomolar protein concentrations. To demonstrate a wider applicability as a screening and real-time reaction monitoring method, the QTR-FRET technique was also applied for G(i)α GTP-loading and pertussis toxin-catalyzed ADP-ribosylation of G(i)α, for which we synthesized a novel γ-GTP-Eu3+ molecule. The study indicates that the QTR-FRET detection technique presented here can be readily applied to dual-parametric assays for various targets.Potentiometric pH probes remain the gold standard for the detection of pH but are not sufficiently sensitive to reliably detect ocean acidification at adequate frequency. Here, potentiometric probes are made dramatically more sensitive by placing a capacitive electronic component in series to the pH probe while imposing a constant potential over the measurement circuit. Each sample change now triggers a capacitive current transient that is easily identified between the two equilibrium states, and is integrated to reveal the accumulated charge. This affords dramatically higher precision than with traditional potentiometric probes. pH changes down to 0.001 pH units are easily distinguished in buffer and seawater samples, at a precision (standard deviation) of 28 μpH and 67 μpH, respectively, orders of magnitude better than what is possible with potentiometric pH probes.Graphene oxide (GO) is a promising 2D material for adsorbents and membranes, in particular, for the CO2 separation process. However, CO2 diffusion and sorption in GO and its layered structures are still not well understood because of its heterogeneous structure. Here we report CO2 sorption in GO and its derivatives (e.g., reduced GO (rGO)) in powders and films. These CO2 sorption behaviors reveal that GO is highly CO2-philic via complex CO2-functional-group-surface interactions, as compared with graphite and rGOs. Even in highly interlocked, lamellar GO films, CO2 molecules above a certain threshold pressure can diffuse into GO interlayers, causing GO films to swell and leading to dramatic increases in CO2 sorption. Intercalated water in GO interlayers can be removed by preferential CO2 sorption without any changes in the GO chemical structure. This finding helps to explain the origin of CO2 affinity with GO and has implications for preparing anhydrous GO assemblies for various applications.Identifying biomolecules for disease diagnosis requires simple, accurate, and reliable analytical techniques. Multiple signal transduction pathways have promoted the development of various biological analysis systems. However, most systems are largely limited by a single mechanism or model analysis, which can easily lead to false-positive/negative results. Herein, we report a covalent organic framework (COF) (TpPa-1) functionalized with a dye (fluorescein sodium) and design this hybrid material (TpPa-1@Dye) to fabricate hydrogels for subsequent analysis with the indicator displacement assay (IDA) method. Selecting a suitable metal cation (Cr3+) for the preparation of hydrogels can reduce the background fluorescence, improve the detection sensitivity, and increase the corresponding sensing selectivity. The TpPa-1@Dye functions as an indicator in the IDA-in-COF system, and Cr3+ is a receptor of the analyte (sialic acid (SA), a biomarker for ovarian cancer diagnosis). Based on the above studies, the integrative logic operations (AND + IMP) are further established, it helps in elucidating the design rules of the IDA-in-COF approach. This work represents the first effort in designing IDA-in-COF luminescent sensors with an On-Off-On mechanism to determine biomarkers and provides a new approach for developing hybrid COF luminescent materials as analysis platforms for human health monitoring.Novel cores for high performance nonfullerene acceptors (NFAs) remain to be developed. In this work, two new n-type nitrogen-containing organic heterocyclic NFAs, namely, BDTN-BF and BDTN-Th, were designed and synthesized based on a new seven fused-ring core (BDTN) with two different end-capping groups. As a result, BDTN-BF possessed similar absorption spectra in solution and solid state to BDTN-Th, but a slightly higher maximum molar extinction coefficient. Manufacturing the polymer solar cells with PM6 as the donor, the photovoltaic performance of BDTN-BF and BDTN-Th was investigated. The PM6BDTN-BF-based device achieved the highest power conversion efficiency (PCE) of 11.54% with a high Jsc of 20.20 mA cm-2, a fill factor (FF) of 61.46%, and a large Voc of 0.93 V, and the energy loss (Eloss) was calculated to be 0.48 eV. Comparatively, the PM6BDTN-Th-based device achieved the maximum PCE value of only 3.53% because of inadequate Jsc and FF. The higher Jsc and FF for the PM6BDTN-BF-based device was mainly due to the effective electron transfer from PM6 to BDTN-BF, more balanced μh/μe, higher electron mobility of the neat film, better charge collection and dissociation efficiency, and more favorable morphology.
We have developed a rapid and sensitive single-well dual-parametric method introduced in linked RAS nucleotide exchange and RAS/RAF-RBD interaction assays. RAS mutations are frequent drivers of multiple different human cancers, but the development of therapeutic strategies has been challenging. Traditionally, efforts to disrupt the RAS function have focused on nucleotide exchange inhibitors, GTP-RAS interaction inhibitors, and activators increasing GTPase activity of mutant RAS proteins. As the amount of biological knowledge grows, targeted biochemical assays enabling high-throughput screening have become increasingly interesting. https://www.selleckchem.com/products/aebsf-hcl.html We have previously introduced a homogeneous quenching resonance energy transfer (QRET) assay for nucleotide binding studies with RAS and heterotrimeric G proteins. Here, we introduce a novel homogeneous signaling technique called QTR-FRET, which combine QRET technology and time-resolved Förster resonance energy transfer (TR-FRET). The dual-parametric QTR-FRET technique enables the linking of guanine nucleotide exchange factor-induced Eu3+-GTP association to RAS, monitored at 615 nm, and subsequent Eu3+-GTP-loaded RAS interaction with RAF-RBD-Alexa680 monitored at 730 nm. Both reactions were monitored in a single-well assay applicable for inhibitor screening and real-time reaction monitoring. This homogeneous assay enables separable detection of both nucleotide exchange and RAS/RAF interaction inhibitors using low nanomolar protein concentrations. To demonstrate a wider applicability as a screening and real-time reaction monitoring method, the QTR-FRET technique was also applied for G(i)α GTP-loading and pertussis toxin-catalyzed ADP-ribosylation of G(i)α, for which we synthesized a novel γ-GTP-Eu3+ molecule. The study indicates that the QTR-FRET detection technique presented here can be readily applied to dual-parametric assays for various targets.Potentiometric pH probes remain the gold standard for the detection of pH but are not sufficiently sensitive to reliably detect ocean acidification at adequate frequency. Here, potentiometric probes are made dramatically more sensitive by placing a capacitive electronic component in series to the pH probe while imposing a constant potential over the measurement circuit. Each sample change now triggers a capacitive current transient that is easily identified between the two equilibrium states, and is integrated to reveal the accumulated charge. This affords dramatically higher precision than with traditional potentiometric probes. pH changes down to 0.001 pH units are easily distinguished in buffer and seawater samples, at a precision (standard deviation) of 28 μpH and 67 μpH, respectively, orders of magnitude better than what is possible with potentiometric pH probes.Graphene oxide (GO) is a promising 2D material for adsorbents and membranes, in particular, for the CO2 separation process. However, CO2 diffusion and sorption in GO and its layered structures are still not well understood because of its heterogeneous structure. Here we report CO2 sorption in GO and its derivatives (e.g., reduced GO (rGO)) in powders and films. These CO2 sorption behaviors reveal that GO is highly CO2-philic via complex CO2-functional-group-surface interactions, as compared with graphite and rGOs. Even in highly interlocked, lamellar GO films, CO2 molecules above a certain threshold pressure can diffuse into GO interlayers, causing GO films to swell and leading to dramatic increases in CO2 sorption. Intercalated water in GO interlayers can be removed by preferential CO2 sorption without any changes in the GO chemical structure. This finding helps to explain the origin of CO2 affinity with GO and has implications for preparing anhydrous GO assemblies for various applications.Identifying biomolecules for disease diagnosis requires simple, accurate, and reliable analytical techniques. Multiple signal transduction pathways have promoted the development of various biological analysis systems. However, most systems are largely limited by a single mechanism or model analysis, which can easily lead to false-positive/negative results. Herein, we report a covalent organic framework (COF) (TpPa-1) functionalized with a dye (fluorescein sodium) and design this hybrid material (TpPa-1@Dye) to fabricate hydrogels for subsequent analysis with the indicator displacement assay (IDA) method. Selecting a suitable metal cation (Cr3+) for the preparation of hydrogels can reduce the background fluorescence, improve the detection sensitivity, and increase the corresponding sensing selectivity. The TpPa-1@Dye functions as an indicator in the IDA-in-COF system, and Cr3+ is a receptor of the analyte (sialic acid (SA), a biomarker for ovarian cancer diagnosis). Based on the above studies, the integrative logic operations (AND + IMP) are further established, it helps in elucidating the design rules of the IDA-in-COF approach. This work represents the first effort in designing IDA-in-COF luminescent sensors with an On-Off-On mechanism to determine biomarkers and provides a new approach for developing hybrid COF luminescent materials as analysis platforms for human health monitoring.Novel cores for high performance nonfullerene acceptors (NFAs) remain to be developed. In this work, two new n-type nitrogen-containing organic heterocyclic NFAs, namely, BDTN-BF and BDTN-Th, were designed and synthesized based on a new seven fused-ring core (BDTN) with two different end-capping groups. As a result, BDTN-BF possessed similar absorption spectra in solution and solid state to BDTN-Th, but a slightly higher maximum molar extinction coefficient. Manufacturing the polymer solar cells with PM6 as the donor, the photovoltaic performance of BDTN-BF and BDTN-Th was investigated. The PM6BDTN-BF-based device achieved the highest power conversion efficiency (PCE) of 11.54% with a high Jsc of 20.20 mA cm-2, a fill factor (FF) of 61.46%, and a large Voc of 0.93 V, and the energy loss (Eloss) was calculated to be 0.48 eV. Comparatively, the PM6BDTN-Th-based device achieved the maximum PCE value of only 3.53% because of inadequate Jsc and FF. The higher Jsc and FF for the PM6BDTN-BF-based device was mainly due to the effective electron transfer from PM6 to BDTN-BF, more balanced μh/μe, higher electron mobility of the neat film, better charge collection and dissociation efficiency, and more favorable morphology.0 Commenti 0 condivisioni 35 Views 0 Anteprima -
Three parameters (η, μ, G0) were estimated from a normalized elastic modulus-strain curve using the Gauss-Newton method. The measured elastic modulus-strain curves all agreed with models of the estimated parameters (0.910 less then R2 less then 0.999) and presented different patterns among normal and diseased subjects. η values were lower for pseudohypertrophies (1.93 ± 0.12), but higher for atrophies (63.40 ± 98.89), compared with normal ones (6.02 ± 2.53). In addition, μ values were higher for pseudohypertrophies (22.65 ± 16.40), but lower for atrophies (0.28 ± 0.41), compared with normal ones (1.07 ± 1.22). The proposed method may provide novel insight into the biomechanics of pennate muscle and has the potential to serve for clinical musculoskeletal medical diagnosis, as the single-probe scanning setup is broadly accepted.We aim to develop a nanodroplet (ND)-mediated intravascular ultrasound (US) transducer for deep vein thrombosis treatments. The US device, having an efficient forward directivity of the acoustic beam, is capable of expediting the clot dissolution rate by activating cavitation of NDs injected onto a thrombus. We designed and prototyped a multi-pillar piezoelectric stack (MPPS) transducer composed of four piezoelectric stacks. Each stack was made of five layers of PZT-4 plates, having a dimension of 0.85 × 0.85 × 0.2 mm3. The transducer was characterized by measuring the electrical impedance and acoustic pressure, compared to simulation results. Next, in-vitro tests were conducted in a blood flow mimicking system using the transducer equipped with an ND injecting tube. The miniaturized transducer, having an aperture size of 2.8 mm, provided a high mechanical index of 1.52 and a relatively wide focal zone of 3.4 mm at 80 Vpp, 0.96 MHz electric input. The mass-reduction rate of the proposed method (NDs + US) was assessed to be 4.1 and 4.6 mg/min with and without the flow model, respectively. The rate was higher than that (1.3-2.7 mg/min) of other intravascular ultrasound modalities using micron-sized bubble agents. The ND-mediated intravascular sonothrombolysis using MPPS transducers was demonstrated with an unprecedented lysis rate, which may offer a new clinical option for DVT treatments. The MPPS transducer generated a high acoustic pressure (~3.1 MPa) at a distance of approximately 2.2 wavelengths from the small aperture, providing synergistic efficacy with nanodroplets for thrombolysis without thrombolytic agents.Matching layer is a critical component that determines the performance of piezoelectric ultrasound transducer. For most piezoelectric materials, their acoustic impedances are significantly higher than human tissues and organs, so a tunable matching layer with a high acoustic impedance is required for optimizing the acoustic wave transmission. In this article, a high compression fabrication method is presented, with which the acoustic impedance of alumina-epoxy composite matching layer can be tuned from 6.50 to 9.47 MRayl by controlling the applied compression pressure and ratio of the components. The maximum acoustic impedance 9.47 MRayl can be achieved by compressing a mixture of 80% alumina weight ratio under a 62.4 MPa pressure. https://www.selleckchem.com/products/agk2.html This enhancement mainly relies on the increased acoustic longitudinal velocity which enlarged the tolerance of high to ultra-high frequency transducer fabrication using quarter wavelength matching design. Furthermore, the attenuation of the matching layer developed by this method is only -10 dB/mm at 40 MHz. The very high acoustic impedance value and very low attenuation make this matching material superior than all reported matching materials, and therefore, can enhance the performance of the ultrasound transducers, especially for medical imaging applications.Using quartz plates as an example existance of the new modification of the Lamb waves is demonstrated. The waves have small vertical displacement, large shear-horizontal and longitudinal components, and elliptic polarization which is oriented parallel to the plate faces. Numerical calculations of the surface displacements and depth profiles show the particular polarization is maintained at any depth from free faces and for all plate thickness in the range h/λ = 0-1.7 (h - thickness, λ - wave length). Results of the measurements accomplished for four new modes and three plate thickness h/λ confirm that radiation of the waves into adjucent liquid (which is proportional to vertical displacement) is small, while viscoelestic loss of the same the waves (which is proportional to in-plane components) is large. This property makes the modified waves suitable for sensing liquids and ices. In particular, responses of the waves towards liquid viscosity and water-to-ice transformation are larger than those are for common Lamb waves approaching 27 and 50 dB, respectively, at about 30 MHz, 1500 cP, and 10 mm propagation path.
Studies have documented reduced work capacity and work productivity loss in multiple sclerosis (MS). Little is known about the longitudinal trajectories of work productivity in MS.
To examine trajectories of work productivity in people living with multiple sclerosis (PwMS) and the factors associated with the trajectories.
Study participants were employed participants of the Australian MS Longitudinal Study (AMSLS) followed from 2015 to 2019 with at least two repeated measures (n=2121). We used group-based trajectory modelling to identify unique work productivity trajectories in PwMS.
We identified three distinct trajectories of work productivity 'moderately reduced' (17.0% of participants) with a mean work productivity level of 47.6% in 2015 (slope -0.97% per year (p= 0.22)), 'mildly reduced' (46.7%) with a mean work productivity of 86.3% in 2015 (slope 0.70% per year (p=0.12)), and 'full' (36.3%) with a mean work productivity of 99.7% in 2015 (slope 0.29% per year (p= 0.30)). Higher education level, higher disability, and higher MS symptom severity are associated with increased probability of being in a worse work productivity trajectory.
We identified three distinct work productivity trajectories in PwMS which were stable over time and differentiated by their baseline level of work productivity.
We identified three distinct work productivity trajectories in PwMS which were stable over time and differentiated by their baseline level of work productivity.
Three parameters (η, μ, G0) were estimated from a normalized elastic modulus-strain curve using the Gauss-Newton method. The measured elastic modulus-strain curves all agreed with models of the estimated parameters (0.910 less then R2 less then 0.999) and presented different patterns among normal and diseased subjects. η values were lower for pseudohypertrophies (1.93 ± 0.12), but higher for atrophies (63.40 ± 98.89), compared with normal ones (6.02 ± 2.53). In addition, μ values were higher for pseudohypertrophies (22.65 ± 16.40), but lower for atrophies (0.28 ± 0.41), compared with normal ones (1.07 ± 1.22). The proposed method may provide novel insight into the biomechanics of pennate muscle and has the potential to serve for clinical musculoskeletal medical diagnosis, as the single-probe scanning setup is broadly accepted.We aim to develop a nanodroplet (ND)-mediated intravascular ultrasound (US) transducer for deep vein thrombosis treatments. The US device, having an efficient forward directivity of the acoustic beam, is capable of expediting the clot dissolution rate by activating cavitation of NDs injected onto a thrombus. We designed and prototyped a multi-pillar piezoelectric stack (MPPS) transducer composed of four piezoelectric stacks. Each stack was made of five layers of PZT-4 plates, having a dimension of 0.85 × 0.85 × 0.2 mm3. The transducer was characterized by measuring the electrical impedance and acoustic pressure, compared to simulation results. Next, in-vitro tests were conducted in a blood flow mimicking system using the transducer equipped with an ND injecting tube. The miniaturized transducer, having an aperture size of 2.8 mm, provided a high mechanical index of 1.52 and a relatively wide focal zone of 3.4 mm at 80 Vpp, 0.96 MHz electric input. The mass-reduction rate of the proposed method (NDs + US) was assessed to be 4.1 and 4.6 mg/min with and without the flow model, respectively. The rate was higher than that (1.3-2.7 mg/min) of other intravascular ultrasound modalities using micron-sized bubble agents. The ND-mediated intravascular sonothrombolysis using MPPS transducers was demonstrated with an unprecedented lysis rate, which may offer a new clinical option for DVT treatments. The MPPS transducer generated a high acoustic pressure (~3.1 MPa) at a distance of approximately 2.2 wavelengths from the small aperture, providing synergistic efficacy with nanodroplets for thrombolysis without thrombolytic agents.Matching layer is a critical component that determines the performance of piezoelectric ultrasound transducer. For most piezoelectric materials, their acoustic impedances are significantly higher than human tissues and organs, so a tunable matching layer with a high acoustic impedance is required for optimizing the acoustic wave transmission. In this article, a high compression fabrication method is presented, with which the acoustic impedance of alumina-epoxy composite matching layer can be tuned from 6.50 to 9.47 MRayl by controlling the applied compression pressure and ratio of the components. The maximum acoustic impedance 9.47 MRayl can be achieved by compressing a mixture of 80% alumina weight ratio under a 62.4 MPa pressure. https://www.selleckchem.com/products/agk2.html This enhancement mainly relies on the increased acoustic longitudinal velocity which enlarged the tolerance of high to ultra-high frequency transducer fabrication using quarter wavelength matching design. Furthermore, the attenuation of the matching layer developed by this method is only -10 dB/mm at 40 MHz. The very high acoustic impedance value and very low attenuation make this matching material superior than all reported matching materials, and therefore, can enhance the performance of the ultrasound transducers, especially for medical imaging applications.Using quartz plates as an example existance of the new modification of the Lamb waves is demonstrated. The waves have small vertical displacement, large shear-horizontal and longitudinal components, and elliptic polarization which is oriented parallel to the plate faces. Numerical calculations of the surface displacements and depth profiles show the particular polarization is maintained at any depth from free faces and for all plate thickness in the range h/λ = 0-1.7 (h - thickness, λ - wave length). Results of the measurements accomplished for four new modes and three plate thickness h/λ confirm that radiation of the waves into adjucent liquid (which is proportional to vertical displacement) is small, while viscoelestic loss of the same the waves (which is proportional to in-plane components) is large. This property makes the modified waves suitable for sensing liquids and ices. In particular, responses of the waves towards liquid viscosity and water-to-ice transformation are larger than those are for common Lamb waves approaching 27 and 50 dB, respectively, at about 30 MHz, 1500 cP, and 10 mm propagation path. Studies have documented reduced work capacity and work productivity loss in multiple sclerosis (MS). Little is known about the longitudinal trajectories of work productivity in MS. To examine trajectories of work productivity in people living with multiple sclerosis (PwMS) and the factors associated with the trajectories. Study participants were employed participants of the Australian MS Longitudinal Study (AMSLS) followed from 2015 to 2019 with at least two repeated measures (n=2121). We used group-based trajectory modelling to identify unique work productivity trajectories in PwMS. We identified three distinct trajectories of work productivity 'moderately reduced' (17.0% of participants) with a mean work productivity level of 47.6% in 2015 (slope -0.97% per year (p= 0.22)), 'mildly reduced' (46.7%) with a mean work productivity of 86.3% in 2015 (slope 0.70% per year (p=0.12)), and 'full' (36.3%) with a mean work productivity of 99.7% in 2015 (slope 0.29% per year (p= 0.30)). Higher education level, higher disability, and higher MS symptom severity are associated with increased probability of being in a worse work productivity trajectory. We identified three distinct work productivity trajectories in PwMS which were stable over time and differentiated by their baseline level of work productivity. We identified three distinct work productivity trajectories in PwMS which were stable over time and differentiated by their baseline level of work productivity.0 Commenti 0 condivisioni 39 Views 0 Anteprima -
5%) lumbar disc hernia, 24 (5.5%) hearing loss, 19 (4.3%) cubital/carpal tunnel, and 15 (3.4%) workers have lead intoxication. Conclusions Dust, chemicals, ergonomic risks and noise still remain as important occupational health risks in Turkey. It is seen that the existing occupational diseases monitoring system is inadequate to identify and manage the health problems of the workers. An effective and comprehensive occupational disease monitoring system should be established and legal regulations should be planned.Introduction Tracheobronchial stents (TBS) are the principal modalities in the management of central airway obstruction with intrinsic tracheobronchial pathology and extrinsic airway compression. The aim of the study is to assess the indications, surveillance management, complications, and long-term outcomes of the TBS managed by rigid bronchoscopy (RB) in our 10-year experience. Materials and Methods The files of all patients who underwent stenting in two centers from November 2008 to September 2018 were reviewed for background data, type of disease, and indication for the placement of stents, symptoms, treatment, complications and outcome. Result 305 patients were stented with 342 TBS. TBS were placed in both malignant (n= 223) and benign airway diseases (n= 82). The median length of stent stay was 88 (34-280) days in patients with malignancies and 775 (228-2085) days in benign diseases. There was no stent-related mortality. Mucostasis (19%) and granulation tissue formation (17%) were the most common stentrelated complications. Benign nature of the disease, tumors metastatic to tracheobronchial tree, lenght of stent stay, and shape of stent were associated with the development of complications. Conclusions TBS offer a safe and effective therapy for patients with both benign and malign tracheobronchial pathologies.Introduction To investigate the relationship between body mass index (BMI) and the severity of obstructive sleep apnea (OSA) and to determine the BMI cut-off values for sleep-disordered breathing among adult population. Materials and Methods Data from 515 patients were evaluated retrospectively. These included demographic data, BMI, apnea-hypopnea index (AHI), oxygen saturation (SaO2) and oxygen desaturation index (ODI). The BMI cutoff value for sleep-disordered breathing was determined and comparisons were made between two groups of patients (BMI ≤ 33 and BMI > 33). Descriptive and comparative analyses were performed using SPSS, version 24. Result Higher BMI values were found to be correlated with diagnosis and severity of OSA and reduced sleep efficiency. Patients in the BMI > 33 group had significantly higher rates of co-morbid diseases than patients in the BMI ≤ 33 group. Patients with BMI ≤ 33 had significantly lower ODI values than patients with BMI > 33. In patients with BMI > 33, arousal index was significantly higher and SaO2 values were lower than those with BMI ≤ 33. In rapid eye movement (REM) sleep-related OSA, BMI values were higher than positional/classical OSA. Conclusions Patients with higher BMI experienced frequent nocturnal oxygen desaturation periods resulting in higher arousal indexes and decreased sleep efficiency. REM sleep-related OSA and high BMI values together may lead to increased nocturnal oxygen demand. We recommend the threshold values of BMI > 33 to be considered for screening OSA among adult population.Introduction Obesity has been considered to be one of the important risk factor for obstructive sleep apnea (OSA). We aimed to investigate the clinical and polysomnographic differences of obese and non-obese OSA patients and how these differences, if any, can be reflected in our daily clinical practice. Materials and Methods The polysomnographic data of 157 consecutive patients that underwent a sleep study were analyzed. Ninety-nine adult patients with a diagnosis of OSA [apnea-hypopnea index (AHI) ≥ 5/hour] were retrospectively assesed in two groups in respect of obese (BMI ≥ 30 kg/m2) or non-obese (BMI 0.05). While in the obese OSA patients the AHI and Epworth Sleepiness sclae were higher (respectively; p= 0.028, p= 0.01), average oxygen saturation at sleep was lower (p less then 0.001). While obese OSA patients had similar ratio of hypertension and atherosclerotic heart disease with non-obese OSA patients, whereas diabetes mellitus was higher in obese OSA group (p= 0.036). https://www.selleckchem.com/products/aebsf-hcl.html The use of antidepressant drug was more common in the non-obese patients than the obese patients (p= 0.011). Conclusions Although obese OSA patients have a more severe disease compared to nonobese OSA patients, there were no significant differences in clinical and polysomnographics findings between two groups. Should be noted that OSA may occur in non-obese patients.Introduction In this study, we aimed to determine the values of anthropometric measurements and rates used in the evaluation of obstructive sleep apnea syndrome (OSAS) in our country. Materials and Methods Twenty accredited sleep centers in thirteen provinces participated in this multicenter prospective study. OSAS symptoms and polysomnographic examination and apnea-hypopnea index (AHI) ≥ 5 cases OSAS study group; patients with AHI less then 5 and STOP-Bang less then 2 were included as control group. Demographic characteristics (age, sex, body mass index-BMI) and anthropometric measurements (neck, waist and hip circumference, waist/hip ratio) of the subjects were recorded. Result The study included 2684 patients (81.3% OSAS) with a mean age of 50.50 ± 0.21 years from 20 centers. The cases were taken from six geographical regions of the country (Mediterranean, Eastern Anatolia, Aegean, Central Anatolia, Black Sea and Marmara Region). Demographic characteristics and anthropometric measurements; age, neck, waist, hip circumference and waist/ hip ratios and BMI characteristics when compared with the control group; when compared according to regions, age, neck, waist, hip circumference and waist/hip ratios were found to be statistically different (p less then 0.001, p less then 0.001, p less then 0.05, respectively). When compared by sex, age, neck and hip circumference, waist/hip ratio, height, weight and BMI characteristics were statistically different (p less then 0.001, respectively). Neck circumference and waist/hip ratio were respectively 42.58 ± 0.10 cm, 0.99 ± 0.002, 39.24 ± 0.16 cm, 0.93 ± 0.004 were found in women. Conclusions The neck circumference was lower than the standard value in men, but higher in women. The waist/hip ratio was above the ideal measurements in both men and women. In this context, the determination of the country values will allow the identification of patients with the possibility of OSAS and referral to sleep centers for polysomnography.
5%) lumbar disc hernia, 24 (5.5%) hearing loss, 19 (4.3%) cubital/carpal tunnel, and 15 (3.4%) workers have lead intoxication. Conclusions Dust, chemicals, ergonomic risks and noise still remain as important occupational health risks in Turkey. It is seen that the existing occupational diseases monitoring system is inadequate to identify and manage the health problems of the workers. An effective and comprehensive occupational disease monitoring system should be established and legal regulations should be planned.Introduction Tracheobronchial stents (TBS) are the principal modalities in the management of central airway obstruction with intrinsic tracheobronchial pathology and extrinsic airway compression. The aim of the study is to assess the indications, surveillance management, complications, and long-term outcomes of the TBS managed by rigid bronchoscopy (RB) in our 10-year experience. Materials and Methods The files of all patients who underwent stenting in two centers from November 2008 to September 2018 were reviewed for background data, type of disease, and indication for the placement of stents, symptoms, treatment, complications and outcome. Result 305 patients were stented with 342 TBS. TBS were placed in both malignant (n= 223) and benign airway diseases (n= 82). The median length of stent stay was 88 (34-280) days in patients with malignancies and 775 (228-2085) days in benign diseases. There was no stent-related mortality. Mucostasis (19%) and granulation tissue formation (17%) were the most common stentrelated complications. Benign nature of the disease, tumors metastatic to tracheobronchial tree, lenght of stent stay, and shape of stent were associated with the development of complications. Conclusions TBS offer a safe and effective therapy for patients with both benign and malign tracheobronchial pathologies.Introduction To investigate the relationship between body mass index (BMI) and the severity of obstructive sleep apnea (OSA) and to determine the BMI cut-off values for sleep-disordered breathing among adult population. Materials and Methods Data from 515 patients were evaluated retrospectively. These included demographic data, BMI, apnea-hypopnea index (AHI), oxygen saturation (SaO2) and oxygen desaturation index (ODI). The BMI cutoff value for sleep-disordered breathing was determined and comparisons were made between two groups of patients (BMI ≤ 33 and BMI > 33). Descriptive and comparative analyses were performed using SPSS, version 24. Result Higher BMI values were found to be correlated with diagnosis and severity of OSA and reduced sleep efficiency. Patients in the BMI > 33 group had significantly higher rates of co-morbid diseases than patients in the BMI ≤ 33 group. Patients with BMI ≤ 33 had significantly lower ODI values than patients with BMI > 33. In patients with BMI > 33, arousal index was significantly higher and SaO2 values were lower than those with BMI ≤ 33. In rapid eye movement (REM) sleep-related OSA, BMI values were higher than positional/classical OSA. Conclusions Patients with higher BMI experienced frequent nocturnal oxygen desaturation periods resulting in higher arousal indexes and decreased sleep efficiency. REM sleep-related OSA and high BMI values together may lead to increased nocturnal oxygen demand. We recommend the threshold values of BMI > 33 to be considered for screening OSA among adult population.Introduction Obesity has been considered to be one of the important risk factor for obstructive sleep apnea (OSA). We aimed to investigate the clinical and polysomnographic differences of obese and non-obese OSA patients and how these differences, if any, can be reflected in our daily clinical practice. Materials and Methods The polysomnographic data of 157 consecutive patients that underwent a sleep study were analyzed. Ninety-nine adult patients with a diagnosis of OSA [apnea-hypopnea index (AHI) ≥ 5/hour] were retrospectively assesed in two groups in respect of obese (BMI ≥ 30 kg/m2) or non-obese (BMI 0.05). While in the obese OSA patients the AHI and Epworth Sleepiness sclae were higher (respectively; p= 0.028, p= 0.01), average oxygen saturation at sleep was lower (p less then 0.001). While obese OSA patients had similar ratio of hypertension and atherosclerotic heart disease with non-obese OSA patients, whereas diabetes mellitus was higher in obese OSA group (p= 0.036). https://www.selleckchem.com/products/aebsf-hcl.html The use of antidepressant drug was more common in the non-obese patients than the obese patients (p= 0.011). Conclusions Although obese OSA patients have a more severe disease compared to nonobese OSA patients, there were no significant differences in clinical and polysomnographics findings between two groups. Should be noted that OSA may occur in non-obese patients.Introduction In this study, we aimed to determine the values of anthropometric measurements and rates used in the evaluation of obstructive sleep apnea syndrome (OSAS) in our country. Materials and Methods Twenty accredited sleep centers in thirteen provinces participated in this multicenter prospective study. OSAS symptoms and polysomnographic examination and apnea-hypopnea index (AHI) ≥ 5 cases OSAS study group; patients with AHI less then 5 and STOP-Bang less then 2 were included as control group. Demographic characteristics (age, sex, body mass index-BMI) and anthropometric measurements (neck, waist and hip circumference, waist/hip ratio) of the subjects were recorded. Result The study included 2684 patients (81.3% OSAS) with a mean age of 50.50 ± 0.21 years from 20 centers. The cases were taken from six geographical regions of the country (Mediterranean, Eastern Anatolia, Aegean, Central Anatolia, Black Sea and Marmara Region). Demographic characteristics and anthropometric measurements; age, neck, waist, hip circumference and waist/ hip ratios and BMI characteristics when compared with the control group; when compared according to regions, age, neck, waist, hip circumference and waist/hip ratios were found to be statistically different (p less then 0.001, p less then 0.001, p less then 0.05, respectively). When compared by sex, age, neck and hip circumference, waist/hip ratio, height, weight and BMI characteristics were statistically different (p less then 0.001, respectively). Neck circumference and waist/hip ratio were respectively 42.58 ± 0.10 cm, 0.99 ± 0.002, 39.24 ± 0.16 cm, 0.93 ± 0.004 were found in women. Conclusions The neck circumference was lower than the standard value in men, but higher in women. The waist/hip ratio was above the ideal measurements in both men and women. In this context, the determination of the country values will allow the identification of patients with the possibility of OSAS and referral to sleep centers for polysomnography.0 Commenti 0 condivisioni 35 Views 0 Anteprima -
OBJECTIVE To assess the long-term safety and effectiveness of tacrolimus for treating lupus nephritis (LN) in the real-world clinical setting. METHODS This is an ongoing, open-label, non-comparative, observational, post-marketing surveillance study conducted across 275 sites in Japan. Registered LN patients are being followed for 10 years. Here we report data relating to 5 years of tacrolimus maintenance therapy at the interim data cutoff in August 2016. RESULTS Of 1395 registered patients, 1355 received tacrolimus maintenance therapy for LN and provided safety data. The most common serious adverse drug reactions (ADRs) included pneumonia (1.1%), herpes zoster (1.0%), cellulitis (1.0%) and diabetes mellitus (1.0%). ADRs occurred mainly within the first 28 weeks of tacrolimus treatment, and no marked increase was observed during the follow-up period. Subgroup analyses suggested that risk factors for commonly observed ADRs associated with tacrolimus included inpatient management, LN disease severity, increasing age, abnormal renal or hepatic function, and comorbid or previous disease. https://www.selleckchem.com/ The cumulative rate of progression to renal failure (based on the attending physician's assessment) was 0.8% at Year 1, and 6.6% at Year 5. Cumulative relapse rates were 7.8% and 30.6%, respectively. Urine proteincreatinine ratio, serum anti-dsDNA antibody levels, complement C3 levels, and steroid-sparing effect were all significantly improved from 4 weeks after tacrolimus treatment initiation (p less then 0.001), and were sustained over 5 years. CONCLUSION Long-term tacrolimus maintenance treatment over 5 years in the real-world clinical setting was well tolerated and effective in a large population of patients with LN. [Clinical trial registration number (www.ClinicalTrials.gov) NCT01410747].OBJECTIVE The aim of the present retrospective observational study was to evaluate in SSc patients the change of renal resistive index (RRI) over the time (ΔRRI) and under treatment as well as to correlate these changes with disease complications. METHODS 230 patients [29 male, median age 57 (48-67) years] were enrolled. At baseline and follow-up [3.43 (2.81-4.45) years] we collected following data disease variables, nailfold videocapilloscopy (NVC) pattern, FVC (Forced vital capacity), carbon oxide diffusing capacity (DLCO), systolic pulmonary arterial pressure (sPAP), presence of interstitial lung disease, RRI, evaluation of glomerular filtration rate (eGFR), new onset of pulmonary arterial hypertension (PAH). RESULTS RRI value is high in SSc patients with digital ulcers and ACA antibodies, active and late NVC patterns, lcSSc. A significant correlation was observed between ΔRRI and ΔsPAP (r=0.17, p=0.02), with statistically higher ΔRRI (0.08 ± 0.02 versus 0.03 ± 0.05, p=0.04) in patients complicated by PAH onset. No other new onset complication was associated with ΔRRI. The ROC curve analysis confirmed the predictive role of ΔRRI in development of new PAH (AUC 0.84; 95% CI 0.75-0.93, p=0.02). In SSc patients never exposed to sildenafil, ΔRRI was higher (0.04 ± 0.05) compared to both patients exposed to sildenafil during the study period (0.01±0.05, p=0.03) or in those exposed at the time of baseline evaluation (0.00 ± 0.05, p=0.01). CONCLUSION RRI and its variation in time are a reliable marker of SSc related vasculopathy, both in renal and extra-renal compartments.OBJECTIVE To determine the feasibility of comparing the Childhood Arthritis and Rheumatology Research Alliance (CARRA) consensus treatment plans (CTPs) in treating new-onset, moderate juvenile dermatomyositis (JDM) using the CARRA registry, and to establish appropriate analytic methods to control for confounding by indication and missing data. METHODS A pilot cohort of 39 JDM patients from the CARRA registry was studied. Patients were assigned by the treating physician, considering patient/family preferences, to one of three CTPs methotrexate and prednisone (MP), intravenous methylprednisolone, methotrexate and prednisone (MMP) or intravenous methylprednisolone, methotrexate, prednisone and intravenous immunoglobulin (MMPI) .The primary outcome was the proportion of patients achieving moderate improvement at 6 months under each CTP. Statistical methods including multiple imputation and inverse probability of treatment weighting were used to handle missing data and confounding by indication. RESULTS Patients received MP (n=13), MMP (n=18) and MMPI (n=8). Patients in all CTPs had significant improvement in disease activity. Of the 36 patients who remained in the pilot study at 6 months, 16 (44%) of them successfully achieved moderate improvement at 6 months (6/13, 46% for MP; 7/15, 47% for MMP; 3/8, 38% for MMPI).After correcting for confounding there were no statistically significant pairwise differences between the CTPs (p = 0.328-0.88). CONCLUSION We gained valuable experience and insight from the pilot study to guide the design and analysis of comparative effectiveness studies using the CARRA registry CTP approach. Our analytical methods can be adopted for future comparative effectiveness studies and applied to other rare disease observational studies.OBJECTIVE Burnout among physicians is common and has important implications. We assessed the extent of burnout among rheumatology practitioners and its associations. METHODS 128 attendees at the 2019 Rheumatology Winter Clinical Symposium were surveyed using the Maslach Burnout Index™ (MBI™) and a demographics questionnaire. Scores for emotional exhaustion (EE) ≥27, depersonalization (DP) ≥10, and personal accomplishment (PA) ≤33 were considered positive for burnout. Data regarding practitioner characteristics including age, sex, years in practice, and other demographics of interest were also collected. These data were used to determine prevalence and interactions of interest between practitioner characteristics and the risk of burnout. RESULTS Of the 128 respondents, 50.8% demonstrated burnout in at least one MBI™ domain. Dissatisfaction with EMR was associated with a 2.86 times increased likelihood of burnout (OR=2.86 p=0.015, 95% CI 1.23-6.65). Similar results were found for lack of exercise (OR=5.00 p= 0.
OBJECTIVE To assess the long-term safety and effectiveness of tacrolimus for treating lupus nephritis (LN) in the real-world clinical setting. METHODS This is an ongoing, open-label, non-comparative, observational, post-marketing surveillance study conducted across 275 sites in Japan. Registered LN patients are being followed for 10 years. Here we report data relating to 5 years of tacrolimus maintenance therapy at the interim data cutoff in August 2016. RESULTS Of 1395 registered patients, 1355 received tacrolimus maintenance therapy for LN and provided safety data. The most common serious adverse drug reactions (ADRs) included pneumonia (1.1%), herpes zoster (1.0%), cellulitis (1.0%) and diabetes mellitus (1.0%). ADRs occurred mainly within the first 28 weeks of tacrolimus treatment, and no marked increase was observed during the follow-up period. Subgroup analyses suggested that risk factors for commonly observed ADRs associated with tacrolimus included inpatient management, LN disease severity, increasing age, abnormal renal or hepatic function, and comorbid or previous disease. https://www.selleckchem.com/ The cumulative rate of progression to renal failure (based on the attending physician's assessment) was 0.8% at Year 1, and 6.6% at Year 5. Cumulative relapse rates were 7.8% and 30.6%, respectively. Urine proteincreatinine ratio, serum anti-dsDNA antibody levels, complement C3 levels, and steroid-sparing effect were all significantly improved from 4 weeks after tacrolimus treatment initiation (p less then 0.001), and were sustained over 5 years. CONCLUSION Long-term tacrolimus maintenance treatment over 5 years in the real-world clinical setting was well tolerated and effective in a large population of patients with LN. [Clinical trial registration number (www.ClinicalTrials.gov) NCT01410747].OBJECTIVE The aim of the present retrospective observational study was to evaluate in SSc patients the change of renal resistive index (RRI) over the time (ΔRRI) and under treatment as well as to correlate these changes with disease complications. METHODS 230 patients [29 male, median age 57 (48-67) years] were enrolled. At baseline and follow-up [3.43 (2.81-4.45) years] we collected following data disease variables, nailfold videocapilloscopy (NVC) pattern, FVC (Forced vital capacity), carbon oxide diffusing capacity (DLCO), systolic pulmonary arterial pressure (sPAP), presence of interstitial lung disease, RRI, evaluation of glomerular filtration rate (eGFR), new onset of pulmonary arterial hypertension (PAH). RESULTS RRI value is high in SSc patients with digital ulcers and ACA antibodies, active and late NVC patterns, lcSSc. A significant correlation was observed between ΔRRI and ΔsPAP (r=0.17, p=0.02), with statistically higher ΔRRI (0.08 ± 0.02 versus 0.03 ± 0.05, p=0.04) in patients complicated by PAH onset. No other new onset complication was associated with ΔRRI. The ROC curve analysis confirmed the predictive role of ΔRRI in development of new PAH (AUC 0.84; 95% CI 0.75-0.93, p=0.02). In SSc patients never exposed to sildenafil, ΔRRI was higher (0.04 ± 0.05) compared to both patients exposed to sildenafil during the study period (0.01±0.05, p=0.03) or in those exposed at the time of baseline evaluation (0.00 ± 0.05, p=0.01). CONCLUSION RRI and its variation in time are a reliable marker of SSc related vasculopathy, both in renal and extra-renal compartments.OBJECTIVE To determine the feasibility of comparing the Childhood Arthritis and Rheumatology Research Alliance (CARRA) consensus treatment plans (CTPs) in treating new-onset, moderate juvenile dermatomyositis (JDM) using the CARRA registry, and to establish appropriate analytic methods to control for confounding by indication and missing data. METHODS A pilot cohort of 39 JDM patients from the CARRA registry was studied. Patients were assigned by the treating physician, considering patient/family preferences, to one of three CTPs methotrexate and prednisone (MP), intravenous methylprednisolone, methotrexate and prednisone (MMP) or intravenous methylprednisolone, methotrexate, prednisone and intravenous immunoglobulin (MMPI) .The primary outcome was the proportion of patients achieving moderate improvement at 6 months under each CTP. Statistical methods including multiple imputation and inverse probability of treatment weighting were used to handle missing data and confounding by indication. RESULTS Patients received MP (n=13), MMP (n=18) and MMPI (n=8). Patients in all CTPs had significant improvement in disease activity. Of the 36 patients who remained in the pilot study at 6 months, 16 (44%) of them successfully achieved moderate improvement at 6 months (6/13, 46% for MP; 7/15, 47% for MMP; 3/8, 38% for MMPI).After correcting for confounding there were no statistically significant pairwise differences between the CTPs (p = 0.328-0.88). CONCLUSION We gained valuable experience and insight from the pilot study to guide the design and analysis of comparative effectiveness studies using the CARRA registry CTP approach. Our analytical methods can be adopted for future comparative effectiveness studies and applied to other rare disease observational studies.OBJECTIVE Burnout among physicians is common and has important implications. We assessed the extent of burnout among rheumatology practitioners and its associations. METHODS 128 attendees at the 2019 Rheumatology Winter Clinical Symposium were surveyed using the Maslach Burnout Index™ (MBI™) and a demographics questionnaire. Scores for emotional exhaustion (EE) ≥27, depersonalization (DP) ≥10, and personal accomplishment (PA) ≤33 were considered positive for burnout. Data regarding practitioner characteristics including age, sex, years in practice, and other demographics of interest were also collected. These data were used to determine prevalence and interactions of interest between practitioner characteristics and the risk of burnout. RESULTS Of the 128 respondents, 50.8% demonstrated burnout in at least one MBI™ domain. Dissatisfaction with EMR was associated with a 2.86 times increased likelihood of burnout (OR=2.86 p=0.015, 95% CI 1.23-6.65). Similar results were found for lack of exercise (OR=5.00 p= 0.0 Commenti 0 condivisioni 35 Views 0 Anteprima -
0001). Mean length of stay (LOS) reduced from 71 to 4.7 days/year (p<0.0001) in general ward and in the PICU from 17.2 days/year to zero (p<0.0002). Pneumonia was the main cause of hospital admission with a reduction in the number of episodes per patient from an average of 2.2-0.1 per year (p<0.001). Concomitant use of antibiotic prophylaxis did not influence the number of hospital admission.
One-year intravenous IVIG significantly decreased the number of hospitalizations and length of stay in children with impaired antibody production. Social and economic impacts would be required.
One-year intravenous IVIG significantly decreased the number of hospitalizations and length of stay in children with impaired antibody production. Social and economic impacts would be required.
To assess the BMI among children with Growth Hormone Deficiency (GHD) and Idiopathic Short Stature (ISS) and its correlation to ghrelin, Growth Hormone (GH), and Insulin-like Growth Factor-1 (IGF-1) levels.
A cross-sectional descriptive study in which 42 patients attending the Pediatric endocrine clinic were enrolled, allocated into two groups group I GHD children; group II ISS children. Ghrelin, IGF-1 and GH in both groups were measured.
Ghrelin was significantly higher among GHD group (p<0.001). https://www.selleckchem.com/products/mrt68921.html Overall, there was a strong negative correlation between IGF-1 and ghrelin (r=-0.977, p-value=< 0.001) while a moderate positive correlation between ghrelin and BMI (r=0.419, p-value=0.006). There was a weak positive non-significant correlation between IGF-1 and BMI (r=0.276, p-value=0.077). In GHD group, there was a weak positive non-significant correlation between ghrelin and GH
measurement (r=0.052, p-value=0.824), while a weak negative non-significant correlation between both variables in ISS group (r=-0.243, p-value=0.288). In GHD group, there was a moderate positive correlation between ghrelin and BMI (r=0.500, p-value=0.021), but weak negative non-significant correlation between both variables in ISS group (r=-0.255, p-value=0.265).
There was a negative feedback loop between ghrelin and IGF-1, whereas a positive feedback between ghrelin and BMI. BMI was more affected in the ISS group but was non-significantly correlated with ghrelin. There was no significant compensatory response of ghrelin suggesting its contribution to the pathogenesis of ISS.
There was a negative feedback loop between ghrelin and IGF-1, whereas a positive feedback between ghrelin and BMI. BMI was more affected in the ISS group but was non-significantly correlated with ghrelin. There was no significant compensatory response of ghrelin suggesting its contribution to the pathogenesis of ISS.
To study the occurrence of alexithymia in obese adolescents.
Cross-sectional study with 102 obese adolescents. Sociodemographic, clinical, and psychometric data (alexithymia and binge eating) were analyzed The Brazilian version of the Toronto Alexithymia Scale and Binge Eating Scale were used for psychometric data collection. Statistical analysis was performed using the Kolmogorov-Smirnov test, Student's t-test, ANOVA, chi-square, linear regression, and logistic regression. The study was approved by Research Ethics Committee.
A 22% occurrence of alexithymia was observed. Considering the category "possible alexithymia", half of the participants presented some alexithymic behavior. Adolescents with alexithymia had higher binge eating scores (alexithymia 16,2 versus possible alexithymia 11,7 versus no alexithymia 8,5; ANOVA p<0,0005) and three times more binge eating behavior than adolescents with no alexithymia or possible alexithymia (alexithymia 36.4% versus 17.2% possible alexithymia versus 11.8% no alexithymia; chi-square=6,2, p=0.04). In simple linear regression, alexithymia scores were positively associated with binge eating scores (r
=0,4; p=0,002). Binary logistic regression showed a three times higher probability of an adolescent with severe obesity to meet the criteria for alexithymia.
There was a 22% occurrence of alexithymia in obese adolescents. It was positively associated with obesity severity and higher binge eating scores, suggesting a relationship between severe obesity, alexithymia, and binge eating behavior.
There was a 22% occurrence of alexithymia in obese adolescents. It was positively associated with obesity severity and higher binge eating scores, suggesting a relationship between severe obesity, alexithymia, and binge eating behavior.The novel betacoronavirus severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) causes a form of severe pneumonia disease called coronavirus disease 2019 (COVID-19). To develop human neutralizing anti-SARS-CoV-2 antibodies, antibody gene libraries from convalescent COVID-19 patients were constructed and recombinant antibody fragments (scFv) against the receptor-binding domain (RBD) of the spike protein were selected by phage display. The antibody STE90-C11 shows a subnanometer IC50 in a plaque-based live SARS-CoV-2 neutralization assay. The in vivo efficacy of the antibody is demonstrated in the Syrian hamster and in the human angiotensin-converting enzyme 2 (hACE2) **** model. The crystal structure of STE90-C11 Fab in complex with SARS-CoV-2-RBD is solved at 2.0 Å resolution showing that the antibody binds at the same region as ACE2 to RBD. The binding and inhibition of STE90-C11 is not blocked by many known emerging RBD mutations. STE90-C11-derived human IgG1 with FcγR-silenced Fc (COR-101) is undergoing Phase Ib/II clinical trials for the treatment of moderate to severe COVID-19.
The reported incidence and fatality rates of SARS-CoV-2 infection in patients receiving maintenance dialysis are higher than those of the general population.
This study sought to characterize the clinical characteristics and outcomes following COVID-19 infection in this population in a single center in Brazil.
Out of 497 dialysis patients evaluated between March 1st, 2020 and February 1st, 2021, those presenting symptoms or history of close contact with COVID-19 patients were tested. Disease severity was categorized as mild, moderate, or severe.
Out of the 497 patients, 8.8% tested positive for COVID-19. These patients were predominantly male (59%), mean age 57.5±17. Hospitalization was required for 45.4% of patients and 15.9% received mechanical ventilation. Symptoms such as fever, cough, dyspnea and asthenia were more frequent in the severe group. Neutrophil to lymphocyte ratio, C- reactive protein, glutamic oxalacetic transaminase and lactic dehydrogenase were significantly higher in the severe group, while hemoglobin and lymphocyte counts were significantly lower.
0001). Mean length of stay (LOS) reduced from 71 to 4.7 days/year (p<0.0001) in general ward and in the PICU from 17.2 days/year to zero (p<0.0002). Pneumonia was the main cause of hospital admission with a reduction in the number of episodes per patient from an average of 2.2-0.1 per year (p<0.001). Concomitant use of antibiotic prophylaxis did not influence the number of hospital admission. One-year intravenous IVIG significantly decreased the number of hospitalizations and length of stay in children with impaired antibody production. Social and economic impacts would be required. One-year intravenous IVIG significantly decreased the number of hospitalizations and length of stay in children with impaired antibody production. Social and economic impacts would be required. To assess the BMI among children with Growth Hormone Deficiency (GHD) and Idiopathic Short Stature (ISS) and its correlation to ghrelin, Growth Hormone (GH), and Insulin-like Growth Factor-1 (IGF-1) levels. A cross-sectional descriptive study in which 42 patients attending the Pediatric endocrine clinic were enrolled, allocated into two groups group I GHD children; group II ISS children. Ghrelin, IGF-1 and GH in both groups were measured. Ghrelin was significantly higher among GHD group (p<0.001). https://www.selleckchem.com/products/mrt68921.html Overall, there was a strong negative correlation between IGF-1 and ghrelin (r=-0.977, p-value=< 0.001) while a moderate positive correlation between ghrelin and BMI (r=0.419, p-value=0.006). There was a weak positive non-significant correlation between IGF-1 and BMI (r=0.276, p-value=0.077). In GHD group, there was a weak positive non-significant correlation between ghrelin and GH measurement (r=0.052, p-value=0.824), while a weak negative non-significant correlation between both variables in ISS group (r=-0.243, p-value=0.288). In GHD group, there was a moderate positive correlation between ghrelin and BMI (r=0.500, p-value=0.021), but weak negative non-significant correlation between both variables in ISS group (r=-0.255, p-value=0.265). There was a negative feedback loop between ghrelin and IGF-1, whereas a positive feedback between ghrelin and BMI. BMI was more affected in the ISS group but was non-significantly correlated with ghrelin. There was no significant compensatory response of ghrelin suggesting its contribution to the pathogenesis of ISS. There was a negative feedback loop between ghrelin and IGF-1, whereas a positive feedback between ghrelin and BMI. BMI was more affected in the ISS group but was non-significantly correlated with ghrelin. There was no significant compensatory response of ghrelin suggesting its contribution to the pathogenesis of ISS. To study the occurrence of alexithymia in obese adolescents. Cross-sectional study with 102 obese adolescents. Sociodemographic, clinical, and psychometric data (alexithymia and binge eating) were analyzed The Brazilian version of the Toronto Alexithymia Scale and Binge Eating Scale were used for psychometric data collection. Statistical analysis was performed using the Kolmogorov-Smirnov test, Student's t-test, ANOVA, chi-square, linear regression, and logistic regression. The study was approved by Research Ethics Committee. A 22% occurrence of alexithymia was observed. Considering the category "possible alexithymia", half of the participants presented some alexithymic behavior. Adolescents with alexithymia had higher binge eating scores (alexithymia 16,2 versus possible alexithymia 11,7 versus no alexithymia 8,5; ANOVA p<0,0005) and three times more binge eating behavior than adolescents with no alexithymia or possible alexithymia (alexithymia 36.4% versus 17.2% possible alexithymia versus 11.8% no alexithymia; chi-square=6,2, p=0.04). In simple linear regression, alexithymia scores were positively associated with binge eating scores (r =0,4; p=0,002). Binary logistic regression showed a three times higher probability of an adolescent with severe obesity to meet the criteria for alexithymia. There was a 22% occurrence of alexithymia in obese adolescents. It was positively associated with obesity severity and higher binge eating scores, suggesting a relationship between severe obesity, alexithymia, and binge eating behavior. There was a 22% occurrence of alexithymia in obese adolescents. It was positively associated with obesity severity and higher binge eating scores, suggesting a relationship between severe obesity, alexithymia, and binge eating behavior.The novel betacoronavirus severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) causes a form of severe pneumonia disease called coronavirus disease 2019 (COVID-19). To develop human neutralizing anti-SARS-CoV-2 antibodies, antibody gene libraries from convalescent COVID-19 patients were constructed and recombinant antibody fragments (scFv) against the receptor-binding domain (RBD) of the spike protein were selected by phage display. The antibody STE90-C11 shows a subnanometer IC50 in a plaque-based live SARS-CoV-2 neutralization assay. The in vivo efficacy of the antibody is demonstrated in the Syrian hamster and in the human angiotensin-converting enzyme 2 (hACE2) mice model. The crystal structure of STE90-C11 Fab in complex with SARS-CoV-2-RBD is solved at 2.0 Å resolution showing that the antibody binds at the same region as ACE2 to RBD. The binding and inhibition of STE90-C11 is not blocked by many known emerging RBD mutations. STE90-C11-derived human IgG1 with FcγR-silenced Fc (COR-101) is undergoing Phase Ib/II clinical trials for the treatment of moderate to severe COVID-19. The reported incidence and fatality rates of SARS-CoV-2 infection in patients receiving maintenance dialysis are higher than those of the general population. This study sought to characterize the clinical characteristics and outcomes following COVID-19 infection in this population in a single center in Brazil. Out of 497 dialysis patients evaluated between March 1st, 2020 and February 1st, 2021, those presenting symptoms or history of close contact with COVID-19 patients were tested. Disease severity was categorized as mild, moderate, or severe. Out of the 497 patients, 8.8% tested positive for COVID-19. These patients were predominantly male (59%), mean age 57.5±17. Hospitalization was required for 45.4% of patients and 15.9% received mechanical ventilation. Symptoms such as fever, cough, dyspnea and asthenia were more frequent in the severe group. Neutrophil to lymphocyte ratio, C- reactive protein, glutamic oxalacetic transaminase and lactic dehydrogenase were significantly higher in the severe group, while hemoglobin and lymphocyte counts were significantly lower.0 Commenti 0 condivisioni 45 Views 0 Anteprima -
OBJECTIVE The objective of this study was to assess police officers' performance and workload in using two mobile computer terminal (MCT) configurations under operational and tactical driving conditions. BACKGROUND Crash reports have identified in-vehicle distraction to be a major cause of law enforcement vehicle crashes. The MCT has been found to be the most frequently used in-vehicle technology and the main source of police in-vehicle distraction. METHOD Twenty police officers participated in a driving simulator-based assessment of driving behavior, task completion time, and perceived workload with two MCT configurations under operational and tactical levels of driving. RESULTS The findings revealed that using the MCT configuration with speech-based data entry and head-up display location while driving improved driving performance, decreased task completion time, and reduced police officers' workload as compared to the current MCT configuration used by police departments. Officers had better driving but worse secondary task performance under the operational driving as compared to the tactical driving condition. CONCLUSION This study provided an empirical support for use of an enhanced MCT configuration in police vehicles to improve police officers' safety and performance. In addition, the findings emphasize the need for more training to improve officers' tactical driving skills and multitasking behavior. APPLICATION The findings provide guidelines for vehicle manufacturers, MCT developers, and police agencies to improve the design and implementation of MCTs in police vehicles considering input modality and display eccentricity, which are expected to increase officer and civilian safety.Huntington Disease Like-2 (HDL2) is a rare autosomal dominant genetic disease caused by a mutation in the JPH3 gene. HDL2 is the Huntington Disease (HD) phenocopy that has the greatest clinical resemblance to HD. Both are characterized by movement, psychiatric and cognitive dysfunction, which progress to dementia. The present study compared the neuropsychological profile of HDL2 with that of HD. Using a Single Case-Control Methodology in Neuropsychology, three HDL2 and seven matched HD patients were assessed with a comprehensive neuropsychological battery and compared to matched control samples, considering age, years of education, type of school (public/government) and language (all bi/multilingual). Potential double dissociations were explored by using Crawford, Garthwaite, and Wood's Inferential Methods for Comparing the Scores of Two Single-Cases in Case-Control Designs. Double dissociation between HDL2 and HD were identified in three tests, namely Letter Number Sequencing, Rey Auditory Learning Test Delayed and Recognition Trials. These dissociations possible are due to methodological limitations.1. This study investigated the effects of daily intake of silage or haylage on broiler production performance and organ development. Furthermore, effects of daily intake of Lactobacillus plantarum either via silage or by supplemented drinking water, on Campylobacter jejuni loads in faeces were studied.2. To test this, a 42-day experiment using Ross 308 and a 63-day experiment with Rowan Rangers hybrids, were performed. Silage inoculated with L. plantarum strain 256 and haylage were fed in total mixed rations with mixtures of 85% of pellets and 15% of respective forage (DM based weight). Feed intake (FI), forage intake, body weight (BW) and feed conversion ration (FCR) were monitored weekly. Mortality was recorded daily, and organ weights were registered at slaughter. Quantification of C. jejuni was performed by colony counts from faecal samples after culture on agar plates.3. There was a negative effect of haylage on BW and FI in the fast-growing Ross 308 hybrid. Silage had a negative effect on BW only on week four and six. Water inoculated with L. https://www.selleckchem.com/products/TSU-68(SU6668).html plantarum 256 increased BW in the starter period. Interestingly, no significant adverse effect of forage inclusion was observed in the Rowan Ranger birds.4. Relative weight of the emptied gizzard was higher in both Ross 308 and Rowan Ranger birds fed haylage and silage than in the control group. In Ross 308 birds, both forages significantly increased the relative weight of gizzard with digestive content when compared to birds fed solely pellets.5. In both studies, higher consumption of silage than haylage was observed.6. In conclusion, daily intake of L. plantarum 256 either via silage or supplemented in drinking water, was not effective in reducing shedding of C. jejuni in either Ross 308 or Rowan Ranger hybrids at the end of the rearing period.OBJECTIVE The aim of the study was to investigate (1) how different gap sizes are perceived by professional truck drivers under real traffic conditions and (2) whether semi-automated platoon driving leads to changes in driving behavior of subsequent manual driving. BACKGROUND Platoon driving is a current branch in the development of automated driving in which two or more vehicles build a convoy. The lead vehicle is controlled manually while following vehicles are electronically coupled to it and drive semi-automated with small gaps in order to achieve a better traffic flow and potential fuel savings. METHOD In a real road experiment, 10 trained professional truck drivers completed a total of 33 test drives with a two-truck platoon on the German highway A9 with a gap size of either 15 or 21 m, in the leading and the following vehicle. RESULTS (1) The drivers experienced both gap sizes as comfortable and preferred the smaller gap size of 15 m. (2) Both gap sizes led to significantly higher standard deviation of lane position in post- compared to pre-platoon driving. No significant difference in distance keepings in post- compared to pre-platoon driving occurred. Qualitative data give hints on difficulties, when switching **** to regular truck driving. CONCLUSION The results implicate that small gap sizes are perceived as comfortable by drivers and that platoon driving has an influence on subsequent manual driving. APPLICATION Countermeasures to behavioral adaptations should be considered in order to ensure a safe conduction of platoon driving.
OBJECTIVE The objective of this study was to assess police officers' performance and workload in using two mobile computer terminal (MCT) configurations under operational and tactical driving conditions. BACKGROUND Crash reports have identified in-vehicle distraction to be a major cause of law enforcement vehicle crashes. The MCT has been found to be the most frequently used in-vehicle technology and the main source of police in-vehicle distraction. METHOD Twenty police officers participated in a driving simulator-based assessment of driving behavior, task completion time, and perceived workload with two MCT configurations under operational and tactical levels of driving. RESULTS The findings revealed that using the MCT configuration with speech-based data entry and head-up display location while driving improved driving performance, decreased task completion time, and reduced police officers' workload as compared to the current MCT configuration used by police departments. Officers had better driving but worse secondary task performance under the operational driving as compared to the tactical driving condition. CONCLUSION This study provided an empirical support for use of an enhanced MCT configuration in police vehicles to improve police officers' safety and performance. In addition, the findings emphasize the need for more training to improve officers' tactical driving skills and multitasking behavior. APPLICATION The findings provide guidelines for vehicle manufacturers, MCT developers, and police agencies to improve the design and implementation of MCTs in police vehicles considering input modality and display eccentricity, which are expected to increase officer and civilian safety.Huntington Disease Like-2 (HDL2) is a rare autosomal dominant genetic disease caused by a mutation in the JPH3 gene. HDL2 is the Huntington Disease (HD) phenocopy that has the greatest clinical resemblance to HD. Both are characterized by movement, psychiatric and cognitive dysfunction, which progress to dementia. The present study compared the neuropsychological profile of HDL2 with that of HD. Using a Single Case-Control Methodology in Neuropsychology, three HDL2 and seven matched HD patients were assessed with a comprehensive neuropsychological battery and compared to matched control samples, considering age, years of education, type of school (public/government) and language (all bi/multilingual). Potential double dissociations were explored by using Crawford, Garthwaite, and Wood's Inferential Methods for Comparing the Scores of Two Single-Cases in Case-Control Designs. Double dissociation between HDL2 and HD were identified in three tests, namely Letter Number Sequencing, Rey Auditory Learning Test Delayed and Recognition Trials. These dissociations possible are due to methodological limitations.1. This study investigated the effects of daily intake of silage or haylage on broiler production performance and organ development. Furthermore, effects of daily intake of Lactobacillus plantarum either via silage or by supplemented drinking water, on Campylobacter jejuni loads in faeces were studied.2. To test this, a 42-day experiment using Ross 308 and a 63-day experiment with Rowan Rangers hybrids, were performed. Silage inoculated with L. plantarum strain 256 and haylage were fed in total mixed rations with mixtures of 85% of pellets and 15% of respective forage (DM based weight). Feed intake (FI), forage intake, body weight (BW) and feed conversion ration (FCR) were monitored weekly. Mortality was recorded daily, and organ weights were registered at slaughter. Quantification of C. jejuni was performed by colony counts from faecal samples after culture on agar plates.3. There was a negative effect of haylage on BW and FI in the fast-growing Ross 308 hybrid. Silage had a negative effect on BW only on week four and six. Water inoculated with L. https://www.selleckchem.com/products/TSU-68(SU6668).html plantarum 256 increased BW in the starter period. Interestingly, no significant adverse effect of forage inclusion was observed in the Rowan Ranger birds.4. Relative weight of the emptied gizzard was higher in both Ross 308 and Rowan Ranger birds fed haylage and silage than in the control group. In Ross 308 birds, both forages significantly increased the relative weight of gizzard with digestive content when compared to birds fed solely pellets.5. In both studies, higher consumption of silage than haylage was observed.6. In conclusion, daily intake of L. plantarum 256 either via silage or supplemented in drinking water, was not effective in reducing shedding of C. jejuni in either Ross 308 or Rowan Ranger hybrids at the end of the rearing period.OBJECTIVE The aim of the study was to investigate (1) how different gap sizes are perceived by professional truck drivers under real traffic conditions and (2) whether semi-automated platoon driving leads to changes in driving behavior of subsequent manual driving. BACKGROUND Platoon driving is a current branch in the development of automated driving in which two or more vehicles build a convoy. The lead vehicle is controlled manually while following vehicles are electronically coupled to it and drive semi-automated with small gaps in order to achieve a better traffic flow and potential fuel savings. METHOD In a real road experiment, 10 trained professional truck drivers completed a total of 33 test drives with a two-truck platoon on the German highway A9 with a gap size of either 15 or 21 m, in the leading and the following vehicle. RESULTS (1) The drivers experienced both gap sizes as comfortable and preferred the smaller gap size of 15 m. (2) Both gap sizes led to significantly higher standard deviation of lane position in post- compared to pre-platoon driving. No significant difference in distance keepings in post- compared to pre-platoon driving occurred. Qualitative data give hints on difficulties, when switching back to regular truck driving. CONCLUSION The results implicate that small gap sizes are perceived as comfortable by drivers and that platoon driving has an influence on subsequent manual driving. APPLICATION Countermeasures to behavioral adaptations should be considered in order to ensure a safe conduction of platoon driving.0 Commenti 0 condivisioni 89 Views 0 Anteprima
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