Wednesday, 17 July 2013

VITAMIN D NOMENCLATURE:

1. Cholecalciferol = Vit D3 = Calciol
2. Ergocalciferol = Vit D2
3. 25-hydroxycholecalciferol = Calcidiol
4. 1,25 dihydroxycholecalciferol = Calcitriol
Animal sources have Cholecalciferol
= Vit D3=Calciol
Plant sources have Ergocalciferol = Vit D2
MC source of Vit D = SUNLIGHT...
UV B causes Photoconversion of 7-dehydrocholesterol in the Stratum basale & spinosum into Cholecalciferol=Vit D3=Calciol

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