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  • Leblanc Putnam posted an update 2 days, 19 hours ago

    This article is protected by copyright. All rights reserved.Reported here is the development of a class of chiral spirosilabiindane scaffolds by Rh-catalyzed asymmetric double hydrosilation, for the first time. Enantiopure SPSiOL (spirosilabiindane diol), a new type of chiral building block for the preparation of various chiral ligands and catalysts, was readily prepared on greater than 10 gram scale using this protocol. The potential of this new spirosilabiindane scaffold in asymmetric catalysis was preliminarily demonstrated by development of the corresponding monodentate phosphoramidite ligands (SPSiPhos), which were used in both a Rh-catalyzed hydrogenation and a Pd-catalyzed intramolecular carboamination. © 2020 Wiley-VCH Verlag GmbH & Co. Ferrostatin1 KGaA, Weinheim.In this study, 22 novel compounds were designed and synthesized by acetamide bridge chains, among which 5 a-5 k were monosubstituted compounds, and 6 a-6 k were disubstituted. A series of biological evaluations was then carried out to determine the carbonic anhydrase inhibitory activity, neuroprotective effects and cytotoxicity of 5 a-5 k and 6 a-6 k. The results showed that some compounds could protect PC12 cells from sodium nitroprusside (SNP)-induced damage. In terms of the neuroprotection and inhibitory activity against carbonic anhydrase II, monosubstituted compounds were better than disubstituted. Compound 5 c exhibited better protective effect in PC12 cells than that of edaravone, and 5 c also showed less cytotoxicity. In addition, compound 5 c was found to be the most effective selective carbonic anhydrase II inhibitor (IC50 =16.7 nM, CAI/CAII=54.3), which was similar to the inhibitory effect of acetazolamide. Moreover, the selectivity of compound 5 c was better than that of acetazolamide (IC50 =12.0 nM, CAI/CAII=20.8). Molecular docking presented that the binding effect of compound 5 c with carbonic anhydrase II was superior to that of 5 c with carbonic anhydrase I and IX, which was consistent with the inhibitory results. Based on above findings, compound 5 c may be a potential candidate for selective carbonic anhydrase II inhibitor, and it had obviously neuroprotective effect and great advantages in drug safety. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.To address ongoing food insecurity and acute malnutrition in Somalia, a broad range of assistance modalities are used, including in-kind food, food vouchers, and cash transfers. Evidence of the impact of cash and voucher assistance (CVA) on prevention of acute malnutrition is limited in humanitarian and development settings. This study examined the impact of CVA on prevention of child acute malnutrition in 2017/2018 in the context of the Somalia food crisis. Changes in diet and acute malnutrition were measured over a 4-month period among children age 6-59 months from households receiving household transfers of approximately US$450 delivered either as food vouchers or a mix of in-kind food, vouchers, and cash. Baseline to endline change in children’s dietary diversity, meal frequency, minimum acceptable diet (MAD), mid-upper arm circumference (MUAC), and acute malnutrition (MUAC less then 12.5 cm) were compared using difference-in-difference analysis with inverse probability weighting. There were no statistically significant changes in dietary diversity, meal frequency, or the proportion of children with MAD for either intervention group. Adjusted change in mean MUAC showed increases of 0.5 cm (confidence interval [CI; 0.0, 0.7 cm]) in the food voucher group and 0.1 cm (CI [-0.1, 0.4]) in the mixed transfer group. In adjusted analysis, prevalence of acute malnutrition among children under 5 years increased by 0.7% (CI [-13.4, 14.4%]) among food voucher recipients and decreased by 4.8% (CI [-9.9, 8.1%]) in mixed transfer recipients. The change over time in both mean MUAC and acute malnutrition prevalence was similar for both interventions, suggesting that cash and vouchers had similar effects on child nutrition status. © 2020 The Authors. Maternal & Child Nutrition published by John Wiley & Sons, Ltd.High-dose folic acid (vitamin B9) – 5mg, given daily, has not been evaluated as a treatment to improve early stage-diabetic foot ulcer (ES-DFU) wound healing. However, high-dose folic acid (HDFA) has been demonstrated to correct 1) endothelial dysfunction and decreased nitric oxide (NO) bioavailability, associated with Type-2 diabetes mellitus (T2DM); and, 2) hyperhomocysteinemia (HHcy), that may promote impaired DFU-wound healing. Measures of wound area (cm2 ) reduction (wound closure; WC), over a 4-week period (4W-WC), greater than 50% of the wound area, have been reported as a robust indicator of the potential for DFU-wound healing. By using this model, we examined the effectiveness of a wound treatment in promoting progressive healing and complete wound closure for the chronic, non-healing DFU-wound. To investigate this possible relationship between HDFA and ES-DFU wound healing, a retrospective cohort study of medical records, between November 2018 and April 2019, was performed for Veterans with T2DM ande established as an effective treatment to promote wound healing and closure for non-healing ES-DFUs. This article is protected by copyright. All rights reserved.Extended-hours hemodialysis is associated with improvements in quality of life (QoL) and mortality, but it may accelerate the loss of residual kidney function (RKF) and increase vascular access complications. Multiple established databases were systematically searched; randomized and non-randomized studies were pooled separately. QoL outcomes were assessed using standardized mean difference (SMD), vascular access adverse events and mortality were assessed with relative risk ratios (RR). Four hundred seventy-six patients from six trials were eligible. Data from randomized controlled trials (RCTs) could only be synthesized for vascular access adverse events and mortality, which demonstrated no significant change in vascular access adverse events (RR 1.25, 95% CI 0.88 to 1.77) or mortality (RR 2.29, 95% CI 0.60 to 8.71). Pooled data from non-randomized trials demonstrated no significant difference in QoL (SF-36 Physical Component Summary SMD 0.61, 95% CI -0.10 to 1.31, SF-36 Mental Component Summary SMD -0.04, 95% CI -0.

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