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The present work is based on a study of the effect of some vitamins such as riboflavin (RF), nicotinamide (NA) and alpha‐tocopherol (TP) on the photodegradation of ascorbic acid (vitamin C) (AH2) in oil‐in‐water cream formulations using a UV irradiation source. A UV spectrophotometric and the official iodimetric methods have been used for the assay of AH2 in cream formulations. These methods have...
Acid-sensing ion channels (ASICs) of the epithelial sodium channel/degenerin (ENaC/DEG) gene family are protongated cation channels. ASICs have two transmembrane segments which are hydrophobic. Various proton-gated ion channels suggest that, ASIC and MDEG probably seems to be the first two members of this family and the genes for the new channels remain to be discovered. The presence of a large extracellular...
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