Objective To investigate the protective role of ulinastatin (UTI) on myocardial ischemia-reperfusion (I/R) injury in rats via endoplasmic reticulum stress (ERS)-induced apoptosis pathway. Materials and methods A total of 60 rats were randomly divided into normal group (n=20), myocardial I/R model group (model group, n=20), and myocardial I/R model+UTI treatment group (treatment group, n=20). The myocardial function indicators [creatinine (Scr) and creatine kinase (CK)] were detected. Enzyme-linked immunosorbent assay (ELISA) was performed to measure serum levels of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and matrix metalloproteinase-9 (MMP-9). Meanwhile, the contents of reactive oxygen species (ROS), superoxide dismutase (SOD), and malondialdehyde (MDA) in rat left ventricular tissues were determined by ELISA as well. The cardiac function indexes were determined via magnetic resonance imaging (MRI) and echocardiography (ECG). Terminal deoxynucleotidyl transferase-mediated deoxyuridine triph model group than that in the other two groups (p less then 0.05). Expression levels of cysteine aspartic acid-specific protease 12 (Caspase-12) and glucose-regulated protein 78 (GRP78) were evidently higher in model group than those in normal group (p less then 0.05), while the expression level of B-cell lymphoma 2 (Bcl-2) was clearly lower in model group than that in normal group (p less then 0.05). UTI treatment partially reversed the above expression changes (p less then 0.05). Conclusions UTI has a protective effect against myocardial I/R injury in rats by repressing the occurrence of ERS-induced apoptosis.Objective Many parallel-group studies of migraine prophylaxis using valproate medications were reported in recent decades. This meta-analysis assessed the efficacy and safety of valproate medications for migraine prophylaxis in adults. Materials and methods Searches were conducted in five databases PubMed, Wiley, ScienceDirect, Web of Science, and the Cochrane Library. The data were acquired through December 31, 2018. Two independent authors searched for controlled clinical trials involving the use of valproate medications in migraine prophylaxis. Studies that met the inclusion criteria were assessed, and their methodological quality was examined. Results Seven placebo-controlled studies (782 participants) and seven controlled trials against active comparators (554 participants) were included in the final analysis. The active treatment of valproate medications was significantly superior to placebo (OR, 4.02; 95% CI 2.17-7.44; I2 = 66%). Compared with the other active comparators, there were no significant differences between treatments in the proportion of responders. Conclusions Valproate medications were more effective than placebo in migraine prevention, with statistically significant differences. https://www.selleckchem.com/products/avelumab.html Both valproate and the other active comparators were well-tolerated, and no significant difference was noted in efficacy and safety for the prophylaxis of migraine.Objective Epidural fibrosis represents a fatal stage of failed back surgery syndrome (FBSS) of known and idiopathic etiology, but no valid therapy is presently available. Previous evidence demonstrated that suberoylanilide hydroxamic acid (SAHA), a histone deacetylases inhibitor, has antifibrotic and anti-inflammatory potential. Current studies have proved that SAHA inhibits myofibroblast differentiation and increases fibroblast apoptosis to attenuate epidural fibrosis. The purpose of this study was to investigate the effect and mechanism of SAHA on repressing epidural fibrosis. Patients and methods First, the levels of acetylation of histone and α-tubulin in adult human fibroblasts (AHF) and human epidural fibroblasts (HEF) were analyzed following SAHA and transforming growth factor-β(TGF-β) treatment. Then, mRNA and protein obtained from human fibroblasts following TGF-β activation and SAHA treatment in vitro culture were used to test the influence of SAHA on the activation and apoptosis of fibroblasts, so as to further explore the related mechanism of SAHA. Then, a laminectomy model was established in rats to observe the therapeutic effect of SAHA on epidural scar tissue. Results The present research proved that the increases of HDAC 3 and α-tubulin were observed in AHF and HEF after TGF-β administration, but SAHA decreased HDAC 3 and α-tubulin expressions. In addition, cell study demonstrated that SAHA inhibited fibroblast activation via decreasing TGF-β function and accelerated apoptosis by promoting cleaved-caspase-3. In the epidural fibrosis model, it was found that SAHA weakened scar hyperplasia and collagen deposition, and effectively inhibited the process of epidural fibrosis. Conclusions These results indicated that SAHA inhibited HDAC 3 expression, decreased TGF-β effect, and enhanced caspase-3 in fibroblasts, leading reduction of myofibroblast activation and apoptosis elevation. Hence, SAHA ameliorated epidural fibrosis development.Objective Anaerobic bacteria can enter the solid tumor in the hypoxic region to colonize and proliferate. Aggregation of nanoparticles in the tumor area can enhance molecular imaging and therapy. It is hypothesized that the combination of the two could possibly achieve better imaging and tumor treatment. This study presents a biocompatible bacteria-based system that can deliver cationic phase-change nanoparticles (CPNs) into solid tumor to achieve enhanced imaging and treatment integration. Materials and methods Cationic phase-change nanoparticles (CPNs) and Bifidobacterium longum (BF) were mixed to determine the best binding rate and were placed in an agar phantom for ultrasonography. BF-CPNs complex adhesion to breast cancer cells was observed by laser confocal microscopy. In vivo, BF-CPNs and control groups were injected into tumors in breast cancer nude mouse models. Nanoparticles distribution was observed by ultrasound and in vivo fluorescence imaging. HIFU ablation was performed after injection. Gross and histological changes were compared and synergy was evaluated. Results Bifidobacterium longum (BF) and CPNs were combined by electrostatic adsorption. The BF-CPNs particles could increase the deposition of energy after liquid-gas phase-change during High Intensity Focused Ultrasound (HIFU) irradiation of tumor. Conclusions This study shows a valid method in diagnosis and therapy integration for providing stronger imaging, longer retention time, and more effective tumor treatment.

Substitution of a second coordination sphere residue changes the spontaneous metallation of the protein to predominantly form a heterodinuclear Mn/Fe cofactor under aerobic conditions and a Mn/Mn metal center under anoxic conditions. Together, the results describe the intrinsic metal specificity of class Ib RNR and provide insight into control mechanisms for protein metallation.The study of Pt(IV) antitumor prodrugs able to circumvent some drawbacks of the conventional Pt(II) chemotherapeutics is the focus of a lot of attention. This paper reports a thorough study based on experimental methods (reduction kinetics, electrochemistry, tandem mass spectrometry and IR ion spectroscopy) and quantum-mechanical DFT calculations on the reduction mechanism of cisplatin-based Pt(IV) derivatives having two hydroxido (1), one hydroxido and one acetato (2), or two acetato ligands (3) in axial position. The biological reductants glutathione and ascorbic acid were taken into consideration. https://www.selleckchem.com/products/plicamycin.html The presence of a hydroxido ligand resulted to play an important role in the chemical reduction with ascorbic acid, as verified by 15N-NMR kinetic analysis using 15N-enriched complexes. The reactivity trend (1 > 2 > 3) does not reflect the respective reduction peak potentials (1  less then  2  less then  3), an inverse relationship already documented in similar systems. Turning to a simplified environment, the Pt(IV) complexes associated with a single reductant molecule (corresponding to the encounter complex occurring along the reaction coordinate in bimolecular reactions in solution) were characterized by IR ion spectroscopy and sampled for their reactivity under collision-induced dissociation (CID) conditions. The complexes display a comparable reduction reactivity ordering as that observed in solution. DFT calculations of the free energy pathways for the observed fragmentation reactions provide theoretical support for the CID patterns and the mechanistic hypotheses on the reduction process are corroborated by the observed reaction paths. The bulk of these data offers a clue of the intricate pathways occurring in solution.Graphic abstract.Previous studies with olfactory-disturbing pesticides resulted after exposure in disturbed behavior and physiology in fish. In the present experiment, reproductive behavior and milt volumes of precocious brown trout (Salmo trutta L.) male parr were studied in a large stream aquarium after exposure to the olfactory-disturbing fungicide 15 μg l-1 IPBC (iodocarb; 3-iodo-2-propynyl butyl carbamate) for 96 h. The statistical analyses did not reveal any significant differences for time attending females between controls and IPBC-exposed males. Furthermore, there were no significant differences in milt volumes. However, when taking all fish into consideration, there were significant differences in milt volumes between parr that had been attending females and those had not been attending females. Controls that had attended females had significantly higher milt volumes than controls or IPBC-exposed males that had not attended females. Taking all control and IPBC parr into consideration, there was a statistically significant positive correlation between time attended females and volume of milt and gonadosomatic index (GSI), respectively. In summary, 15 μg l-1 IPBC did not have any significant effects on mature male parr reproductive behavior and milt volumes.Parechovirus A (PeV-A), which causes a wide variety of diseases, is prevalent among young children. However, little is currently known about PeV-A infections in children with acute gastroenteritis in mainland China. In this study, we investigated the molecular epidemiology of acute gastroenteritis in Shenzhen, southern China, with an emphasis on PeV-A infections. A total of 1220 stool specimens from 1220 outpatient children under 5 years old with acute gastroenteritis were collected from January 2016 to December 2018. Viral RNA was detected by a real-time RT-PCR and PCR method. The PeV-A isolates were genotyped by sequencing the VP3/VP1 region. Of 1220 specimens, 148 (12.1%) were positive for PeV-A. The predominant genotype was PeV-A 1B (68.9%), followed by PeV-A 4 (12.2%), PeV-A 14 (6.1%), PeV-A 1A (5.4%), PeV-A 6 (2.7%), PeV-A 3 (2.7%) and PeV-A 5 (2.0%). It was found that 68.2% of PeV-A infections occurred in the summer and rainy months (June to September) in southern China. The majority of PeV-A-positive patients (97.3%) were younger than 24 months old. PeV-A coinfection with norovirus, rotavirus, astrovirus and adenovirus was found in thirty specimens (30/148, 20.3%), five specimens (5/148, 3.4%), five specimens (5/148, 3.4%), and two specimens (2/148, 1.4%), respectively. Coinfections with more than one other enteric virus were not observed in any of the PeV-A-positive specimens. Phylogenetic analysis revealed that the PeV-A isolates from Shenzhen were closely related to each other and to strains circulating in China, suggesting endemic circulation of PeV-A in China. The results of this study indicate that PeV-A is one of important pathogens of acute gastroenteritis in young children and that coinfection is a possible mode of PeV-A infection. PeV-A associated with acute gastroenteritis exhibited high genotypic diversity in Shenzhen, southern China.PURPOSE To evaluate vision-related quality of life in keratoconus patients and associated impact of keratoconus severity indicators using the National Eye Institute Visual Function Questionnaire (NEI-VFQ-25). METHODS This was a prospective cross-sectional study carried out from November 1, 2014, to April 30, 2015, in the corneal service of the Hôtel-Dieu hospital, Paris, France. A hundred and one keratoconus patients were consecutively enrolled. Participants completed a French-validated version of the National Eye Institute Visual Function Questionnaire (NEI-VFQ-25). Manifest refraction, maximum keratometry value, and corneal thinnest point were recorded. Associations between clinical and demographic factors, previous medical or surgical treatment, and NEI-VFQ-25 scale scores were evaluated. RESULTS Vision-related quality of life was no better in patients managed with rigid gas permeable contact lens, collagen cross-linking, or intracorneal ring segment implantation, compared with untreated patients. In advanced keratoconus (stages II, III, and IV of Amsler-Krumeich classification), rigid gas permeable contact lens wearers had better general vision but more ocular pain.

Results showed that both in vitro and in vivo concentration-time profiles of IND were significantly varying with abovementioned factors. https://www.selleckchem.com/products/iclepertin.html Solution viscosity, solid-state properties and morphology of ASDs were related to the results. This study revealed fundamental mechanisms of PVP/PC mixture effect on IND supersaturation and oral bioavailability, demonstrating that polymer/lipid mixture could be used as a promising carrier to alter supersaturation profile and oral bioavailability of SDDS products. Food deprivation or restriction causes animals to mount a stereotypical behavioral and physiological response that involves overall increases in activity, elevated glucocorticoid production, and (often) inhibition of the reproductive system. Although there is increasing evidence that these responses can differ in their degree or covariation between the sexes, most studies to-date on food restriction/deprivation have focused on male songbirds. We therefore aimed to characterize the behavioral, physiological, and neuroendocrine response to acute food deprivation in a female songbird using a nomadic species, the zebra finch. We quantified behavior during a 6.5 h food deprivation and then measured physiological and neuroendocrine responses of female birds at the 6.5 h timepoint. Within 1 h of acute food deprivation, female zebra finches increased foraging behaviors, and after 6.5 h of food deprivation, females lost 5% of their body mass, on average. Change in body mass was positively associated with elevated corticosterone and (contrary to findings in male zebra finches) negatively related to the number of gonadotropin inhibitory hormone-immunoreactive cells in the hypothalamus. However, there was no effect of food deprivation on corticotropin releasing hormone-immunoreactive cells in the hypothalamus. There was also no relationship between corticotropin releasing hormone-immunoreactive cell number and circulating corticosterone. Our results are consistent with the hypothesis that neuroendocrine responses to food deprivation differ between male and female songbirds. Future studies should work to incorporate sex comparisons to evaluate sex-specific neuroendocrine responses to acute stress. BACKGROUND & AIMS Glypican 3 (GPC3) is an oncofetal antigen involved in Wnt-dependent cell proliferation that is highly expressed in hepatocellular carcinoma (HCC). We investigated whether the functions of chimeric antigen receptors (CARs) that target GPC3 are affected by their antibody-binding properties. METHODS We collected peripheral blood mononuclear cells from healthy donors and patients with HCC and used them to create CAR T cells, based on the hYP7 and HN3 antibodies, which have high affinities for the C-lobe and N-lobe of GPC3, respectively. NSG mice were given intraperitoneal injections of luciferase-expressing (Luc) Hep3B or HepG2 cells and after xenograft tumors formed, mice were given injections of saline or untransduced T cells (controls), or CAR (HN3) T cells or CAR (hYP7) T cells. In other NSG mice, HepG2-Luc or Hep3B-Luc cells were injected into liver, and after orthotopic tumors formed, mice were given 1 injection of CAR (hYP7) T cells or CD19 CAR T cells (control). We developed droplet digi CAR T cells from tumor-bearing mice. CONCLUSIONS In mice with xenograft or orthoptic liver tumors, CAR (hYP7) T cells eliminate GPC3-positive HCC cells, possibly by inducing perforin- and granzyme-mediated apoptosis or reducing Wnt signaling in tumor cells. GPC3-targeted CAR T cells might be developed for treatment of patients with HCC. BACKGROUND & AIMS There are intra- and inter-observer variations in endoscopic assessment of ulcerative colitis (UC) and biopsies are often collected for histologic evaluation. We sought to develop a deep neural network system for consistent, objective, and real-time analysis of endoscopic images from patients with UC. METHODS We constructed the deep neural network for evaluation of UC (DNUC) algorithm using 40,758 images of colonoscopies and 6885 biopsy results from 2012 patients with UC who underwent colonoscopy from January 2014 through March 2018 at a single center in Japan (the training set). We validated the accuracy of the DNUC algorithm in a prospective study of 875 patients with UC who underwent colonoscopy from April 2018 through April 2019, with 4187 endoscopic images and 4104 biopsy specimens. Endoscopic remission was defined as an UC endoscopic index of severity (UCEIS) score of 0; histologic remission was defined as a Geboes score of 3 points or less. RESULTS In the prospective study, the DNUC identified patients with endoscopic remission with 90.1% accuracy (95% CI, 89.2%-90.9%) and a kappa coefficient of 0.798 (95% CI, 0.780-0.814), using findings reported by endoscopists as the reference standard. The intraclass correlation coefficient between the DNUC and the endoscopists for UCEIS scoring was 0.917 (95% CI, 0.911-0.921). The DNUC identified patients in histologic remission with 92.9% accuracy (95% CI, 92.1%-93.7%); the kappa coefficient between the DNUC and the biopsy result was 0.859 (95% CI, 0.841-0.875). CONCLUSIONS We developed a deep neural network for evaluation of endoscopic images from patients with UC that identified those in endoscopic remission with 90.1% accuracy and histologic remission with 92.9% accuracy. The DNUC can therefore identify patients in remission without the need for mucosal biopsy collection and analysis. Trial number UMIN000031430. Zinc fingers and homeoboxes (ZHX) proteins are heterodimeric transcriptional factors largely expressed at the cell membrane in podocytes in vivo. We found ZHX2-based heterodimers in podocytes, with ZHX2-ZHX1 predominantly at the cell membrane of the podocyte cell body, and ZHX2-ZHX3 at the slit diaphragm. In addition to changes in overall ZHX2 expression, there was increased podocyte nuclear ZHX3 and ZHX2 in patients with focal segmental glomerulosclerosis, and increased podocyte nuclear ZHX1 in patients with minimal change disease. Zhx2 deficient mice had increased podocyte ZHX1 and ZHX3 expression. Zhx2 deficient mice and podocyte specific Zhx2 overexpressing transgenic rats develop worse experimental focal segmental glomerulosclerosis than controls, with increased nuclear ZHX3 and ZHX2, respectively. By contrast, podocyte specific Zhx2 overexpressing transgenic rats develop lesser proteinuria during experimental minimal change disease due to peripheral sequestration of ZHX1 by ZHX2. Using co-immunoprecipitation, the interaction of ZHX2 with aminopeptidase A in the podocyte body cell membrane, and EPHRIN B1 in the slit diaphragm were noted to be central to upstream events in animal models of minimal change disease and focal segmental glomerulosclerosis, respectively.

The rapid pace of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic (COVID-19) presents challenges to the robust collection of population-scale data to address this global health crisis. We established the COronavirus Pandemic Epidemiology (COPE) consortium to bring together scientists with expertise in big data research and epidemiology to develop a COVID-19 Symptom Tracker mobile application that we launched in the UK on March 24, 2020 and the US on March 29, 2020 garnering more than 2.8 million users as of May 2, 2020. This mobile application offers data on risk factors, herald symptoms, clinical outcomes, and geographical hot spots. https://www.selleckchem.com/products/incb28060.html This initiative offers critical proof-of-concept for the repurposing of existing approaches to enable rapidly scalable epidemiologic data collection and analysis which is critical for a data-driven response to this public health challenge. Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.Vascular endothelial growth factor (VEGF) has been recently demonstrated to induce neuroprotective and synaptotrophic effects on lesioned neurons. Hitherto, the administration of VEGF in different animal models of lesion or disease has been carried out following a chronic protocol of administration. We questioned whether a single dose of VEGF, administered intraventricularly, could induce long-term neurotrophic effects on injured motoneurons. For this purpose, we performed in cats the axotomy of abducens motoneurons and the injection of VEGF into the fourth ventricle in the same surgical session, and investigated the discharge characteristics of axotomized and treated motoneurons by single-unit extracellular recordings in the chronic alert preparation. We found that injured motoneurons treated with a single VEGF application discharged with normal characteristics, showing neuronal eye position and velocity sensitivities similar to control, thereby preventing the axotomy-induced alterations. These effects were ffects on injured motoneurons. We pursued this issue by using a behaving chronic preparation showing that single intraventricular administration of VEGF prevented the firing and synaptic alterations induced by axotomy in abducens motoneurons without provoking an angiogenic response. These data demonstrate that VEGF administration does not require a continuous supply to obtain physiological improvements, a data of great value due to its potential therapeutic use. Copyright © 2020 Calvo et al.Aberrant activation of the Hedgehog (HH) signaling pathway underlines the initiation and progression of a multitude of cancers. The effectiveness of the leading drugs vismodegib (GDC-0449) and sonidegib (LDE225), both Smoothened (SMO) antagonists, is compromised by acquisition of mutations that alter pathway components, notably secondary mutations in SMO and amplification of GLI2, a transcriptional mediator at the end of the pathway. Pharmacological blockade of GLI2 activity could ultimately overcome these diversified refractory mechanisms, which would also be effective in a broader spectrum of primary tumors than current SMO antagonists. To this end, we conducted a high-content screen directly analyzing the ciliary translocation of GLI2, a key event for GLI2 activation in HH signal transduction. Several prostaglandin compounds were shown to inhibit accumulation of GLI2 within the primary cilium (PC). In particular, prostaglandin E1 (PGE1), an FDA-approved drug, is a potent GLI2 antagonist that overcame resistance mechanisms of both SMO mutagenesis and GLI2 amplification. Consistent with a role in HH pathway regulation, EP4 receptor localized to the PC. Mechanistically, PGE1 inhibited HH signaling through the EP4 receptor, enhancing cAMP-PKA activity, which promoted phosphorylation and degradation of GLI2 via the ubiquitination pathway. PGE1 also effectively inhibited the growth of drug refractory human medulloblastoma (MB) xenografts. Together, these results identify PGE1 and other prostaglandins as potential templates for complementary therapeutic development to circumvent resistance to current generation SMO antagonists in use in the clinic. Copyright ©2020, American Association for Cancer Research.The effect of the rapid accumulation of nonsynonymous mutations on the pathogenesis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is not yet known. The 3a protein is unique to SARS-CoV and is essential for disease pathogenesis. Our study aimed at determining the nonsynonymous mutations in the 3a protein in SARS-CoV-2 and determining and characterizing the protein's structure and spatial orientation in comparison to those of 3a in SARS-CoV. A total of 51 different nonsynonymous amino acid substitutions were detected in the 3a proteins among 2,782 SARS-CoV-2 strains. We observed microclonality within the ORF3a gene tree defined by nonsynonymous mutations separating the isolates into distinct subpopulations. We detected and identified six functional domains (I to VI) in the SARS-CoV-2 3a protein. The functional domains were linked to virulence, infectivity, ion channel formation, and virus release. Our study showed the importance of conserved functional domains across the species barrier and revealed the possible role of the 3a protein in the viral life cycle. Observations reported in this study merit experimental confirmation.IMPORTANCE At the surge of the coronavirus disease 2019 (COVID-19) pandemic, we detected and identified six functional domains (I to VI) in the SARS-CoV-2 3a protein. Our analysis showed that the functional domains were linked to virulence, infectivity, ion channel formation, and virus release in SARS-CoV-2 3a. Our study also revealed the functional importance of conserved domains across the species barrier. Observations reported in this study merit experimental confirmation. Copyright © 2020 Issa et al.By modulating the structure, diversity, and trophic outputs of microbial communities, phages play crucial roles in many biomes. In oligotrophic polar deserts, the effects of katabatic winds, constrained nutrients, and low water availability are known to limit microbial activity. Although phages may substantially govern trophic interactions in cold deserts, relatively little is known regarding the precise ecological mechanisms. Here, we provide the first evidence of widespread antiphage innate immunity in Antarctic environments using metagenomic sequence data from hypolith communities as model systems. In particular, immunity systems such as DISARM and BREX are shown to be dominant systems in these communities. Additionally, we show a direct correlation between the CRISPR-Cas adaptive immunity and the metavirome of hypolith communities, suggesting the existence of dynamic host-phage interactions. In addition to providing the first exploration of immune systems in cold deserts, our results suggest that phages actively challenge niche communities in Antarctic polar deserts.

Electron microscopy, melt-rheology, dynamic mechanical analysis and ultra-small angle neutron scattering were conducted to establish morphology of acrylonitrile butadiene rubber (NBR)-lignin elastomers from solvent fractionated lignins.This study aims to elucidate the idiosyncratic effects of the Internet and online communication on the well-being and life satisfaction of cruise ship employees. Cross-sectional surveys and covariance-based structural equation modelling tools were used. In addition, univariate variance analysis was used to address the effects of socio-demographic variables (years of service on a cruise ship, working department on a cruise ship, gender, age, educational level and place of residency) on latent variables of the conceptual model. The conceptual model draws on existing theory and previous research and was empirically tested on a sample of cruise ship employee internet users. Result show that while being onboard a cruise ship, employees experience strong social pressure to be constantly available and they fear of missing out on important information and life events. Thus, relatedness to friends and family needs satisfaction is of paramount importance for cruise ship employees because they are fully aware that they are dispensable and replaceable to cruise ship companies, however to their friends and family, they are indispensable and unique. Moreover, employees who engage in other tasks/activities while taking part in online communication with friends and family exhibit reduced performance, which leads to poor interaction and social dissatisfaction. Lastly, employees experiencing under-reciprocating exchanges show significant negative effects on their well-being. Overall, the results provided several important theoretical and practical implications relevant to cruise tourism and human resource management.BACKGROUND Knee cartilage defects can be retrieved in 60% of patients undergoing knee arthroscopy, especially in the patellofemoral joint. Different techniques have been proposed to treat patellar defects, although most of them are associated with short-term results. In this study Autologous Matrix Induced Chondrogenesis (AMIC), combining subchondral microfractures with a collagen membrane (type I and III collagen), was used in the treatment of isolated patellar cartilage defects. METHODS Twenty-four patients were enrolled in this retrospective study. Subjective-International Knee Documentation Committee (IKDC), Visual Analog Scale for Pain (VAS), and Kujala score were collected at 1, 3, 6, and 12 months after surgery, whereas the Tegner Activity Level Scale was determined preoperatively and at final follow-up (final-FU). The same postoperative management and rehabilitation protocol was adopted for all the patients. RESULTS Fourteen patients met the inclusion-exclusion criteria and were evaluated at a mean final-FU of 68.2 months (range 25.4-111.2). At 12 months, Kujala, IKDC, and VAS scores significantly increased in comparison to the preoperative assessment, whereas no statistically significant differences were reported between 12 months and final follow-up. https://www.selleckchem.com/products/resigratinib.html CONCLUSION This study demonstrated very good results throughout the follow-up, also in sports patients. The AMIC technique, together with an adequate rehabilitation protocol, can be considered as a reliable one-step alternative for the treatment of large isolated patellar cartilage defects.A comparative analysis of the structure, properties and the corrosion behavior of the micro-arc coatings based on Sr-substituted hydroxyapatite (Sr-HA) and Sr-substituted tricalcium phosphate (Sr-TCP) deposited on Mg0.8Ca alloy substrates was performed. The current density during the formation of the Sr-HA coatings was higher than that for the Sr-TCP coatings. As a result, the Sr-HA coatings were thicker and had a greater surface roughness Ra than the Sr-TCP coatings. In addition, pore sizes of the Sr-HA were almost two times larger. The ratio (Ca + Sr + Mg)/P were equal 1.64 and 1.47 for Sr-HA and Sr-TCP coatings, respectively. Thus, it can be assumed that the composition of Sr-HA and Sr-TCP coatings was predominantly presented by (Sr,Mg)-substituted hydroxyapatite and (Sr,Mg)-substituted tricalcium phosphate. However, the average content of Sr was approximately the same for both types of the coatings and was equal to 1.8 at.%. The Sr-HA coatings were less soluble and had higher corrosion resistance than the Sr-TCP coatings. Cytotoxic tests in vitro demonstrated a higher cell viability after cultivation with extracts of the Sr-HA coatings.Nitrate (NO3-) and auxin are key regulators of root growth and development, modulating the signalling cascades in auxin-induced lateral root formation. Auxin biosynthesis, transport, and transduction are significantly altered by nitrate. A decrease in nitrate (NO3-) supply tends to promote auxin translocation from shoots to roots and vice-versa. This nitrate mediated auxin biosynthesis regulating lateral roots growth is induced by the nitrate transporters and its downstream transcription factors. Most nitrate responsive genes (short-term and long-term) are involved in signalling overlap between nitrate and auxin, thereby inducing lateral roots initiation, emergence, and development. Moreover, in the auxin signalling pathway, the varying nitrate supply regulates lateral roots development by modulating the auxin accumulation in the roots. Here, we focus on the roles of nitrate responsive genes in mediating auxin biosynthesis in Arabidopsis root, and the mechanism involved in the transport of auxin at different nitrate levels. In addition, this review also provides an insight into the significance of nitrate responsive regulatory module and their downstream transcription factors in root system architecture in the model plant Arabidopsis thaliana.DEAD (Asp-Glu-Ala-Asp) box polypeptide 3, X-linked (DDX3X) is a member of the DEAD-box family of RNA helicases whose function has been revealed to be involved in RNA metabolism. Recent studies further indicate the abnormal expression in pan-cancers and the relevant biological effects on modulating cancer progression. However, DDX3X's role in renal cell carcinoma (RCC) progression remains largely unknown. In this study, a medical informatics-based analysis using The Cancer Genome Atlas (TCGA) dataset was performed to evaluate clinical prognoses related to DDX3X. The results suggest that DDX3X is epigenetically repressed in tumor tissue and that lower DDX3X is correlated with the poor overall survival of RCC patients and high tumor size, lymph node metastasis, and distant metastasis (TNM staging system). Furthermore, knowledge-based transcriptomic analysis by Ingenuity Pathway Analysis (IPA) revealed that the SPINK1-metallothionein pathway is a top 1-repressed canonical signaling pathway by DDX3X. Furthermore, SPINK1 and the metallothionein gene family all serve as poor prognostic indicators, and the expression levels of those genes are inversely correlated with DDX3X in RCC.

The treatment of diabetic foot ulcers (DFUs) is usually based on local debridement, topical agents, and nonsurgical off-loading. When compared with nonsurgical methods, a number of articles reported better results with surgery. The aim of this meta-analysis was to collate quantitative evidence on the outcomes of surgery versus nonsurgical treatment (NST) of DFUs. Databases were searched from inception to September 2019. PRISMA guidelines were followed, and the Joanna Briggs Institute critical appraisal tools were used to appraise studies' quality. https://www.selleckchem.com/products/iclepertin.html Nine studies were included totalizing 436 ulcers (216 treated with surgery and 220 DFUs with NST). The primary outcome was the healing rate. The secondary outcomes were time to heal, recurrence rate, transfer rate, infection rate, and amputation/revision surgery rate. The risk differences (RDs) between the healing rates following surgery and NST for infected and noninfected ulcers were 17% (95% confidence interval [CI] = 0.012-0.328, P = .03) and 19.2% (95% CI = 0.050-0.334, P = .008), respectively, in favor of surgery. The amputation/revision surgery rate was significantly better following surgery for both types of ulcers. Noninfected ulcers demonstrated significantly lesser time to heal, recurrence, and infection rates following surgery. This meta-analysis demonstrated that surgery was superior to NST in treating infected and noninfected neuropathic plantar wounds.Background Transcatheter arterial chemoembolization (TACE), radiofrequency ablation (RFA), and microwave ablation (MWA) are regarded as effective therapies for treating unresectable hepatocellular carcinoma (HCC). We conducted this study to compare the efficiency and safety of TACE combined with RFA (TR group) or MWA (TM group).Method PubMed, the Cochrane Library, Ovid Medline, Web of Science, Scopus, Embase, ScienceDirect, and Google Scholar were searched. The primary endpoints were overall survival (OS), progression-free survival (PFS), response rates, and complications.Result Eight cohort studies and one randomized controlled trial were included. The TM group had better OS (Hazard ratio [HR] 1.55; 95% confidence interval [CI] 1.09-2.21, p = 0.01) and a better 2- and 3-year OS rate, 24-month PFS rate (Risk ratio [RR] 0.67; 95% CI 0.46-0.96, p = 0.03), and complete response rate (RR 0.87; 95% CI 0.79-0.96, p = 0.003) than the TR group. Furthermore, the TM and TR groups did not show significant differences in PFS, the disease control rate or complications. The advantage of TM was mainly reflected in younger patients (50-60 years old) compared with patients aged 60-70 years, as well as in patients with larger tumors (≥3 cm) compared with patients with tumors less then 3 cm. Moreover, patients treated with conventional TACE (cTACE) in the TM group showed longer OS, while patients treated with drug-eluting bead transarterial chemoembolization (DEB-TACE) in the TR group showed a higher overall response rate.Conclusion TM seems to be a more effective therapy than TR for unresectable HCC, with better survival and similar safety.Purpose To review the knowledge base regarding assistive technology (AT) and the education of people with a hearing impairment. Also, evaluating to what extent has the use and/or impact of AT for individuals with a hearing impairment been determined through evidence-based research in post-school education.Materials and method Literature pertaining to the effect of AT on the educational performance of students with impaired hearing in the post-school sector was examined for the period from 1998 to 2018 (20 years). A total of 477 articles that contained evidence-based research and reports on the effect of AT in practice were located and reviewed.Results It was found that, of the 20 studies that met all the inclusion criteria, only seven provided promising, evidence-based reports on the impact of assistive hearing technology on educational performance.Conclusion This review concluded that the limited research speaks to the positive impact of AT on educational outcomes. Additionally, for students with a hearing is with hearing impairment to receive high quality, appropriate AT that will enhance their educational success.Ultimately, it is hoped that this article elicits the need for much more investigation into this topic to work towards finding solutions that lead to increased participation of deaf learners in the higher education arena, as well as providing evidence-based results to inform future policy and practice.Objective. To identify the bacterial isolates and their antibiotics susceptibility pattern among patients with lower limb ulcers admitted at a tertiary hospital in northern Tanzania. Methodology. A cross-sectional study was conducted between April and July 2018 at the Kilimanjaro Christian Medical Centre. Questionnaire was used to obtain the demographics and clinical information of participants. Wound samples were collected and culture method used to identify the bacteria and their susceptibility patterns. Results. Out of 65 participants, 55 (84.6%) had positive aerobic bacterial growth. Twelve (18 %) participants had more than one bacterium. Fifty-nine (88.1%) were gram-negative bacteria. Proteus vulgaris (13, 19.9%), Pseudomonas spp (10, 14.8%), and Staphylococcus aureus (8, 11.7%) were the common isolates. Out of 59 gram-negative bacterial, 47 (78%) were sensitive to amikacin. Staph were sensitive to oxacillin (75%; n = 8) and vancomycin (50%; n = 8). Gram-negative were common isolates and were resistant to amoxicillin/clavulanic acid but sensitive to amikacin. Conclusion. The observed resistance to antibiotics calls for continuous monitoring of the resistance pattern to guide the empirical management of patients with leg ulcer.Peer review has been the principal way of evaluating scientific articles, ensuring that publications meet standards of methodology, integrity, and ethics. Occasionally, however, reviews are suboptimal, especially those by inexperienced reviewers. Therefore, this article offers suggestions on how to review a scientific article. Some of the most important suggestions include submitting the review in a timely fashion without undue delay, not breeching confidentiality, focusing mainly on the methodology, following specific format, and avoiding embarrassing comments to the authors.

In this paper we profiled and compared blood plasma exosomes isolated from mouse models and from human subjects with and without symptomatic lymphatic pathologies. We identified platelet factor 4 (PF4/CXCL4) as a biomarker that could be used to diagnose lymphatic vasculature dysfunction. Furthermore, we determined that PF4 levels in circulating blood plasma exosomes were also elevated in lipedema patients, supporting current claims arguing that at least some of the underlying attributes of this disease are also the consequence of lymphatic defects.Introduction Most of the antibiotics currently used in pediatrics are either unlicensed or being prescribed outside the specifications of product label (off-label prescribing). The aim of this study was to assess the extent of off-label antibiotic use in pediatrics. Methodology A six month longitudinal off-label antibiotic utilization survey was carried out from January to June, 2018. A structured questionnaire was designed to collect detailed information for each pediatric patient admitted to participating health center. The data included basic demographic and clinical diagnosis with details of prescribed antibiotics (formulation, dose, dosage, route of administration and indication for use). Data were analyzed using Social packages for Statistical Sciences (SPSS) version 21.0. Results Of 1,810 admissions, 1,795 (99.2%) patients received antibiotics. Out of these, a total of 451 (25.1%) patients (326 patients admitted in the medical ward and 125 patients in ICUs) received at least one unlicensed/off-label antibiotic. Antibiotics were predominantly prescribed for the treatment of infections (n = 311, 69.0%). The majority of the pediatric patients who received off-label antibiotic suffered from respiratory tract infections (n = 223, 49.4%), skin and soft tissue infections (n = 53, 11.8%), gastrointestinal tract infections (n = 56, 12.4%) and other infections (n = 46, 10.2%). Co-amoxiclav (n = 190, 42.1%) was the most frequently off-label prescribed antibiotic to pediatric patients. An inappropriate dose for patients (n = 430, 95.3%) was the most frequent cause of prescribing off-label antibiotics. Conclusions Further evaluation of health and economic outcomes of off-label prescribing and determinants influencing the drug choice is required.Introduction Intestinal parasites are known to cause infection in humans worldwide, with higher prevalence in low- and middle- incoming countries. Children are greatly affected leading to malnutrition and subsequently to physical and cognitive development impairment. Despite the scale and importance of this issue, there are few studies conducted in Mozambique concerning parasitic intestinal infections in hospitalized children. To our knowledge this is the first published report with data on this subject from Northern Mozambique. Methodology A cross-sectional study was conducted in 2012 and 2013 in 831 children, attending the Central Hospital of Nampula in Northern Mozambique. One single stool sample was obtained from each child. Socio-demographic and clinical data were also obtained. Parasitological analysis of feces was performed through direct examination and Ritchie concentration technique and Giardia duodenalis antigen detection by rapid immunochromatographic test. Modified Ziehl-Neelsen staining was used for coccidia detection. Results The global prevalence of pathogenic intestinal parasites was 31.6%. G. duodenalis (23.9%) was by far the most prevalent parasite followed by Strongyloides stercoralis (4.1%) and Cryptosporidium sp. (3.4%). Intestinal parasites were more frequent in older children (p = 0.005; aOR = 1.025). Conclusions This work is one of the few published studies reporting intestinal parasites infection in hospitalized children. The percentage of children affected with G. duodenalis is higher than found in other studies in the African region. This highlights the need of particular attention being given to this intestinal protozoan and its resistance to water treatment, as well as to environmental health and personal hygiene.Introduction This study aims at defining through a retrospective evaluation, the clinical parameters affecting the clinical course and consequently the management of patients presenting with cervicofacial abscesses. Methodology A total of 394 patients diagnosed with abscess at the University of Sassari Otorhinolaryngology Division between 2009 and 2017 were included; among these, eleven patients were diagnosed with necrotizing fasciitis. Personal and clinical parameters including the LRINEC score and the medical and/or surgical treatment used were analyzed for each patient. The most frequently affected site was the peritonsillar space (76.9%), followed by the parapharyngeal space. Results Mean age was 41(±17) years, the male population was slightly overrepresented (68%). An average of 6 (±7) days of hospitalization duration was recorded. The mortality rate was confirmed to be relatively low (1/349 patients) and was reported only in one patient diagnosed with necrotizing fasciitis (1/11). Conclusion Diagnosis, correct clinical definition and early medical-surgical treatment of neck abscesses were crucial to reduce complications; LRNEC score, C-reactive protein, glycemia and creatininemia proved to be reliable prognostic indicators of difficult patient management and risk of complications.Introduction Hepatitis C Virus (HCV) is the leading cause of chronic liver disease and is a serious global health problem. https://www.selleckchem.com/products/az-33.html Hepatitis C infection is highly prevalent in patients with end stage renal disease (ESRD), due to frequent exposure to blood and blood products, nosocomial transmission of HCV, and prolong hemodialysis duration. The aim of the study was to evaluate the influence of IL-33/ST2 signaling pathway on severity of the liver disease in ESRD HCV+ patients. Methodology Blood samples from patients with end stage renal disease (ESRD) and hepatitis C infection (HCV), 20 patients with HCV infection, 20 patients with ESRD and 20 healthy control donor patients were taken for the examination of biochemical parameters, for the determination of the serum cytokine concentration, and for the molecular diagnostics of HCV. Results Systemic sST2 positively correlated with serum level of urea and creatinine, respectively. Serum sST2 was significantly increased in ESRD HCV+ patients in comparison to HCV+ group. sST2/IL-1, sST2/IL-4 and sST2/IL-23 ratios were significantly increased in serum of ESRD HCV+ patients in comparison to HCV+ patients.

Background information There have been several studies to understand the influence of stiffness of the culture substrates for different types of adherent cells. It is generally accepted that cell proliferation, spreading and focal adhesions increase with higher matrix stiffness. However, what remains unclear is whether this kind of cell behaviour may be reverted by culturing on soft substrates those cell lines that were originally selected or primed on stiff surfaces. Results Here, we studied the influence of substrate softness on proliferation, adhesion and morphology of the highly proliferative hepatic C9 cell line. We cultured C9 cells on soft and stiff polydimethylsiloxane (PDMS) substrates prepared with two different elastic moduli in the range of 10 and 200 kPa, respectively. Lower cell proliferation was observed on substrates with lower stiffness without affecting cell viability. The proliferation rate of C9 cell line along with extracellular growth-regulated kinase (ERK) phosphorylation was decreased l proliferation rate contrary to the effect observed in short periods of cell culture. In contrast to previous reports, cell death was not observed during these experiments, discarding a cell selection mechanism and suggesting soft cell adaptation may be limited in time in C9 cells.Recurrence of positive SARS CoV-2 PCR has been described in patients discharged from hospital after 2 consecutive negative PCR. We discuss possible explanations including false negative, reactivation and re-infection and propose different strategy to solve this issue. Prolonged SARS-CoV-2 RNA shedding and recurrence of viral RNA shedding in asymptomatic patients remain unknown. Transmission of SARS-CoV-2 by asymptomatic carriers had been documented. Considering the significance of this ongoing global public health emergency, it is necessary to carry out large studies to better understand the issue of potential SARS-CoV-2 recurrence in COVID-19 patients. This article is protected by copyright. All rights reserved.Homologous recombination over large genomic regions is difficult to achieve due to low efficiencies. Here, we report the successful engineering of a humanized mTert allele, hmTert, in the mouse genome by replacing an 18.1-kb genomic region around the mTert gene with a recombinant fragment of over 45.5 kb, using homologous recombination facilitated by the Crispr/Cas9 technology, in mouse embryonic stem cells (mESCs). In our experiments, with DNA double-strand breaks (DSBs) generated by Crispr/Cas9 system, the homologous recombination efficiency was up to 11% and 16% in two mESC lines TC1 and v6.5, respectively. Overall, we obtained a total of 27 mESC clones with heterozygous hmTert/mTert alleles and three clones with homozygous hmTert alleles. DSBs induced by Crispr/Cas9 cleavages also caused high rates of genomic DNA deletions and mutations at single-guide RNA target sites. Our results indicated that the Crispr/Cas9 system significantly increased the efficiency of homologous recombination-mediated gene editing over a large genomic region in mammalian cells, and also caused frequent mutations at unedited target sites. Overall, this strategy provides an efficient and feasible way for manipulating large chromosomal regions.Azithromycin (AZM) is a broad-spectrum antibiotic widely used to treat infections. AZM has also been shown to have anti-inflammatory and immunomodulatory functions unrelated to its antibacterial activity which contribute to the effectiveness of this drug in chronic respiratory diseases. The mechanisms behind these beneficial effects are not yet fully elucidated. We have previously shown that AZM enhances barrier integrity of bronchial epithelial cells and directs them towards epidermal differentiation. In this study, we analyzed the effect of AZM pre-treatment of bronchial and alveolar derived cell lines while mechanically stressed in a Cyclical Pressure Air-liquid interface Device (CPAD), that mimics the disruption of the epithelial barrier with increased inflammatory response in lung tissue, associated with ventilator-induced lung injury (VILI). Immunostainings along with imaging the cells in the electron microscope, show that barrier integrity of the epithelium is compromised by cyclically stressing the cells but maintained when cells were AZM pre-treated. Lamellar body formations were also revealed in AZM pre-treated cells possibly further supporting the barrier enhancing effects. RNA sequencing shows that the inflammatory response is attenuated by AZM pre-treatment before cyclical stress. Expression of YKL-40, an emerging inflammatory marker is shown to increase due to cyclical stress and by AZM treatment. These data suggest that AZM has barrier protective and immunomodulatory effects, attenuating the inflammatory response during mechanical stress and might therefore be lung protective during mechanical ventilation.The Patient-Oriented Eczema Measure (POEM, 0-28 points) is a self-assessed, repeatable measurement tool for measuring atopic dermatitis (AD) severity. How-ever, whether POEM score is influenced by allergic comorbidities and whether POEM's severity banding is applicable in web-based surveys for AD remain unclear. A web-based questionnaire survey was conducted in 329 patients with AD. POEM, self-reported severity of AD, and comorbidity of allergic diseases including asthma, pollen rhinitis, allergic conjunctivitis, and food allergy were assessed. POEM scores were not affected by a history of comorbid allergic diseases. https://www.selleckchem.com/products/hrs-4642.html The severity banding for POEM scores on the web-based survey was as follows clear/almost clear = 0, mild = 1-8, moderate = 9-21, and severe/very severe = 22-28, which was comparable to previous banding. These results suggest that POEM is useful for determining AD severity, even in web-based surveys. Patients with POEM scores above 9 points may be grouped into moderate, severe, and very severe AD.The approval of BRAF and MEK inhibitors has significantly improved treatment outcomes for patients with BRAF-mutated metastatic melanoma. The 3 first-line targeted therapy trials have provided similar results, and thus the identification of predictive biomarkers may generate a more precise basis for clinical decision-making. Elevated baseline lactate dehydrogenase (LDH) has already been determined as a strong prognostic factor. Therefore, this indirect analysis compared subgroups with elevated baseline LDH across the pivotal targeted therapy trials co-BRIM, COMBI-v and COLUMBUS part 1. The Bucher method was used to compare progression-free survival, objective response rate and overall survival indirectly. The results show a non-significant risk reduction for progression in the subgroup with elevated baseline LDH receiving vemurafenib plus cobimetinib compared with dabrafenib plus trametinib and encorafenib plus binimetinib. Although an indirect comparison, these data might provide some guidance for treatment recommendations in melanoma patients with elevated LDH.

Moreover, different expression patterns of TPS, UGP, CDF, VIN1, and seven hormone pathway genes were observed during vernalization between the two accessions. The transcriptome results of this study provide a new perspective on the changes that occur during B. https://www.selleckchem.com/ rapavernalization, as well as serve as an excellent reference for B. rapa breeding.Nociceptive information is transmitted from the periphery to the cerebral cortex mainly by action potential (AP) conduction in nerve fibers and chemical transmission at synapses. Although this nociceptive transmission is largely inhibited at synapses by analgesics and their adjuvants, it is possible that the antinociceptive drugs inhibit nerve AP conduction, contributing to their antinociceptive effects. Many of the drugs are reported to inhibit the nerve conduction of AP and voltage-gated Na+ and K+ channels involved in its production. Compound action potential (CAP) is a useful measure to know whether drugs act on nerve AP conduction. Clinically-used analgesics and analgesic adjuvants (opioids, non-steroidal anti-inflammatory drugs, 2-adrenoceptor agonists, antiepileptics, antidepressants and local anesthetics) were found to inhibit fast-conducting CAPs recorded from the frog sciatic nerve by using the air-gap method. Similar actions were produced by antinociceptive plant-derived chemicals. Their inhibitory actions depended on the concentrations and chemical structures of the drugs. This review article will mention the inhibitory actions of the antinociceptive compounds on CAPs in frog and mammalian peripheral (particularly, sciatic) nerves and on voltage-gated Na+ and K+ channels involved in AP production. Nerve AP conduction inhibition produced by analgesics and analgesic adjuvants is suggested to contribute to at least a part of their antinociceptive effects.Nanoscale drug delivery systems exhibit a broad range of applications and promising treatment possibilities for various medical conditions. Nanomedicine is of great interest, particularly for rare diseases still lacking a curative treatment such as cystic fibrosis (CF). CF is defined by a lack of Cl- secretion through the cystic fibrosis transmembrane conductance regulator (CFTR) and an increased Na+ absorption mediated by the epithelial sodium channel (ENaC). The imbalanced ion and water transport leads to pathological changes in many organs, particularly in the lung. We developed a non-viral delivery system based on the natural aminopolysaccharide chitosan (CS) for the transport of antisense oligonucleotides (ASO) against ENaC to specifically address Na+ hyperabsorption. CS-ASO electrostatic self-assembled nanocomplexes were formed at varying positive/negative (P/N) charge ratios and characterized for their physicochemical properties. Most promising nanocomplexes (P/N 90) displayed an average size of ~150 nm and a zeta potential of ~+30 mV. Successful uptake of the nanocomplexes by the human airway epithelial cell line NCI-H441 was confirmed by fluorescence microscopy. Functional Ussing chamber measurements of transfected NCI-H441 cells showed significantly decreased Na+ currents, indicating successful downregulation of ENaC. The results obtained confirm the promising characteristics of CS as a non-viral and non-toxic delivery system and demonstrate the encouraging possibility to target ENaC with ASOs to treat abnormal ion transport in CF.Back pain in children is a reality and various factors are involved in its etiology. The study's aim was to analyze the relationship between the use and type of backpack and pain in children. An analytical observational cross-sectional study was conducted among 123 schoolchildren between 8-10 years. Data on the participants' weight and height and their backpacks were collected, as well as the way of travel to school and their physical activity during the week. The results indicated that all backpacks were large because the backpack's height is longer than torso length. Participants who studied in a traditional educational system (62.60%) carried backpacks that exceeded 10% of their body weight. Additionally, 31.7% of the students presented pain. There is no significant correlation between the weight or type of backpack and the pressure pain threshold collected from shoulders muscles. Participants who carried backpacks heavier than 10% of their body weight did not have more musculoskeletal pain or a lower pressure pain threshold than the others, although they did report greater fatigue. All these topics should be debated considering the student's social environment and the backpack's discomfort to the children, even though no relationship was found between musculoskeletal pain and backpack weight.Background The etiology and the mechanism behind atropine treatment of progressive myopia are still poorly understood. Our study addressed the role of scleral and choroidal fibroblasts in myopia development and atropine function. METHODS Fibroblasts treated in vitro with atropine or 7-methylxanthine were tested for ECM production by Western blotting. Corneal epithelial cells were treated with atropine in the presence or absence of colostrum or fucosyl-lactose, and cell survival was evaluated by the MTT metabolic test. RESULTS Atropine and 7-methyl-xanthine stimulated collagen I and fibronectin production in scleral fibroblasts, while they inhibited their production in choroidal fibroblasts. Four days of treatment with atropine of corneal epithelial cells significantly decreased cell viability, which could be prevented by the presence of colostrum or fucosyl-lactose. CONCLUSIONS Our results show that atropine may function in different ways in different eye districts, strengthening the scleral ECM and increasing permeability in the choroid. The finding that colostrum or fucosyl-lactose attenuate the corneal epithelial toxicity after long-term atropine treatment suggests the possibility that both compounds can efficiently blunt its toxicity in children subjected to chronic atropine treatment.The study of interfaces between engineered surfaces and prokaryotic cells is a subject whose actual relevance has been reinforced by the current outbreaks due to unknown viruses and antibiotic-resistant bacteria. Studies aiming at the development of antibacterial surfaces are based on two pillars surface chemistry or topographical cues. This work reports the study of only the topographic aspect by the development of thin films of polyamide, which present attractive surface chemistry for bacterial adhesion. The same chemistry with only nano- or hierarchical nano- and micro-topography that mimics the extracellular matrix is obtained by sputter-depositing the thin films onto Si and polydimethylsiloxane (PDMS), respectively. The surface average roughness of the Si-modified surfaces was around 1 nm, while the hierarchical topography presented values from 750 to 1000 nm, with wavelengths and amplitudes ranging from 15-30 µm and 1-3 µm, respectively, depending on the deposition parameters. The surface topography, wettability, surface charge, and mechanical properties were determined and related to interface performance with two Gram+ and two Gram- bacterial strains.