Metal-Free Switchable Chemo- and Regioselective Alkylation of Oxindoles Using Secondary Alcohols.

In this study, we have disclosed N-alkylation and C-alkylation reactions of 2-oxindoles with secondary alcohols. Interestingly, these chemoselective reactions are tunable by changing the reaction conditions. Utilization of protic solvent and Brønsted acid catalyst afforded C-alkylation, whereas, aprotic solvent and Lewis acid catalyst afforded N-alkylation of 2-oxindoles in good to excellent yields.

Is SARS-CoV-2 Spike glycoprotein impairing macrophage function via α7-nicotinic acetylcholine receptors?

The innate immune cells play an important role in handling early infections, and can eliminate them completely up to a certain threshold. Beyond that threshold they take up their role in "The Resolution of Inflammation". The recognition of the SARS-CoV-2 antigen triggers an eicosanoid storm and initiates a robust inflammatory response.

Assessment of the WHO Health Promoting Schools Framework among schools in selected villages of rural Puducherry, South India - a mixed method study.

Background: The health of children and adolescents can be promoted through schools as they spend most of their time in school. The Health Promoting Schools (HPS) framework provides a set of policies to be followed in schools for improving the health status of school-going children and adolescents. The current study was done to assess this framework among schools in rural Puducherry.

Polymeric Drug-Delivery Systems: Role in P-gp Efflux System Inhibition.

Permeability glycoprotein (P-gp), a multispecific drug transporter belonging to the multidrug resistance (MDR) gene subfamily, is mainly responsible for efflux of diffused intracellular drugs, resulting in poor drug bioavailability. P-gp is overexpressed in the blood-brain barrier, gastrointestinal tract (GIT), kidney, liver, pancreas, and cancerous cells, leading to multidrug resistance and failure of therapy. Because P-gp is transported into cells by way of receptor-mediated endocytosis (in contrast to diffusion for free drug), polymeric efflux pump modulators can have a major role in efficient drug delivery.