Vitamin D | Biosynthesis & the Vitamin D Receptor

The video explains the biosynthetic pathway of vitamin D, highlighting its sources, including dietary intake and de novo synthesis. It details the role of 7-dehydrocholesterol in cholesterol and vitamin D synthesis, emphasizing the non-enzymatic reactions driven by sunlight. The conversion of cholecalciferol to active vitamin D (calcitriol) is discussed, along with its physiological effects, such as promoting insulin sensitivity and reducing inflammation. The mechanism of the vitamin D receptor is explored, and the impact of statins on vitamin D synthesis is addressed.

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