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We show that stable and long-lasting cold climatic conditions are correlated with transitions to viviparity across squamates. This correlation of parity mode and palaeoclimate is mirrored by background diversification in squamates, and simulations of a binary trait also showed a similar association with palaeoclimate, meaning that trait evolution cannot be separated from squamate lineage diversification. We suggest that parity mode transitions depend on environmental and intrinsic effects and that background diversification rate may be a factor in trait diversification more generally.
This paper summarises published evidence on the use of recorded music in high-risk infants to reduce stress and improve neurodevelopment, forming recommendations for proposed clinical applications in neonatal intensive care units.
We searched two comprehensive library catalogues and two databases for articles evaluating the impact of recorded music interventions on hospitalised preterm infants. Original and review papers published in English in the 10years prior to this search were selected if the study included a component of recorded music interventions.
Most original studies (80.95%) and all literature reviews (100%) reported positive effects of recorded music interventions for preterm infants, primarily in the short term. No negative effects were reported. Evidence is emerging regarding the neurobiological mechanisms of recorded music on longer-term effects on preterm infant neurodevelopment. Clinical applications were suggested drawing upon available evidence. Due to generally small sample sizes and variability in study design, unanswered questions remain.
Carefully designed recorded music interventions appear to be safe, feasible and effective in reducing stress and improving neurodevelopment of hospitalised infants. Additional rigorous, well-powered trials with relevant outcomes are needed to further refine specific elements for recorded music interventions to better inform practice.
Carefully designed recorded music interventions appear to be safe, feasible and effective in reducing stress and improving neurodevelopment of hospitalised infants. Additional rigorous, well-powered trials with relevant outcomes are needed to further refine specific elements for recorded music interventions to better inform practice.
Grape seed extract (GSE) seems to have antioxidant and anti-inflammatory properties due to its high polyphenolic content. Nevertheless, the scientific literature in this field is controversial and inconclusive. Therefore, we aimed to conduct a systematic review and meta-analysis of controlled trials to evaluate the effect of supplementation with GSE on biomarkers of oxidative stress and inflammation.
Medline, Scopus, Cochrane Library, Google Scholar and Web of Science databases were searched up to 10 September 2020 using appropriate keywords without restrictions. In the systematic review phase, all biomarkers of oxidative stress and inflammation were considered as outcomes. In the meta-analysis phase, six biomarkers were selected as outcomes, and weighted mean difference (WMD) or standardised mean difference (SMD) with 95% confidence interval (CI) was calculated for them using a random-effects model.
Twenty-three studies were included in the systematic review, and 19 studies were included in the meta-analysis. GSE supplementation caused a significant decrease in malondialdehyde (SMD -1.04, 95% CI -1.65, -0.42), oxidised low-density lipoprotein (SMD -0.44, 95% CI -0.75, -0.13) and high-sensitivity C-reactive protein (WMD -0.48mg/L, 95% CI -0.94, -0.03) and a marginally significant increase in total antioxidant capacity (SMD 0.49, 95% CI -0.05, 1.04) but did not significantly influence C-reactive protein (WMD -0.36mg/L, 95% CI -1.02, 0.30) and white blood cell count (WMD 0.12×10
/L, 95% CI -0.25, 0.48).
It appears that GSE supplementation can remarkably modulate the body's redox system, particularly through the inhibition of lipid peroxidation, but has neutral or mildly beneficial effects on inflammatory responses.
It appears that GSE supplementation can remarkably modulate the body's redox system, particularly through the inhibition of lipid peroxidation, but has neutral or mildly beneficial effects on inflammatory responses.Persistent luminescent nanocrystals (PLNCs) in the sub-10 nm domain are considered to be the most fascinating inventions in lighting technology owing to their excellent performance in anti-counterfeiting, luminous paints, bioimaging, security applications, etc. Further improvement of persistent luminescence (PersL) intensity and lifetime is needed to achieve the desired success of PLNCs while keeping the uniform sub-10 nm size. In this work, the concept of molten salt confinement to thermally anneal as-synthesized ZnGa2 O4 Cr3+ (ZGOC) colloidal NCs (CNCs) in a molten salt medium at 650 °C is introduced. This method led to significantly monodispersed and few agglomerated NCs with a much improved photoluminescence (PL) and PersL intensity without much growth in the size of the pristine CNCs. Other strategies such as i) thermal annealing, ii) overcoating, and iii) the core-shell strategy have also been tried to improve PL and PersL but did not improve them simultaneously. selleck chemical Moreover, directly annealing the CNCs in air without the assistance of molten salt could significantly improve both PL and PersL but led to particle heterogeneity and aggregation, which are highly unsuitable for in vivo imaging. We believe this work provides a novel strategy to design PLNCs with high PL intensity and long PersL duration without losing their nanostructural characteristics, water dispersibility and biocompatibility.Hepatocellular carcinoma is a highly fatal disease and threatens human health seriously. Fluid shear stress (FSS), which is caused by the leakage of plasma from abnormally permeable tumor blood vessels and insufficient lymphatic drainage, has been identified as contributing pathologically to cancer metastasis. Autophagy and epithelial-mesenchymal transition (EMT) are both reported to be involved in cancer cell migration and invasion, but little has been revealed about the interaction between autophagy and EMT under a tumor mechanical microenvironment. Here, we identified that exposure to 1.4 dyne/cm2 FSS could promote the formation of autophagosomes and significantly increase the expressions of autophagy-related markers of beclin1 and ATG7, and the ratio of LC3Ⅱ/Ⅰ in both of HepG2 and QGY-7703 cells. The FSS loading also elevated the levels of mesenchymal markers N-cadherin, Vimentin, Twist, Snail, and β-catenin, while the epithelial markers E-cadherin showed a decrease. Once the autophagy was blocked by 3-methyladenine (3-MA) or knocking ATG5 down, the occurrence of FSS-induced EMT was inhibited dramatically according to the expression and translocation of E-cadherin, N-cadherin, and β-catenin.
Homepage: https://www.selleckchem.com/products/17-AAG(Geldanamycin).html
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