Water-Soluble Vitamins - Vitamin B1, B2, B3, B5, B7, B9, B12, Vitamin C - Micronutrients- Nutrition

Introduction to Vitamins00:00:00

Overview of biochemistry playlist and definition of macronutrients versus micronutrients, distinguishing between water-soluble and fat-soluble vitamins.

Vitamin B1 (Thiamine)00:11:30

Explains the role of thiamine in enzyme systems like pyruvate dehydrogenase and the clinical manifestations of deficiency, including Wernicke-Korsakoff syndrome and Beriberi.

Vitamin B2 (Riboflavin)00:14:24

Discusses riboflavin's role in creating FAD/FMN for redox reactions and symptoms of deficiency such as glossitis and angular stomatitis.

Vitamin B3 (Niacin)00:16:38

Explores the synthesis of niacin from tryptophan, the function of NAD/NADP, and Pellagra (3Ds: diarrhea, dermatitis, dementia) caused by deficiency.

Vitamin B5 (Pantothenic Acid) & B6 (Pyridoxine)00:22:48

Covers B5 as a component of Coenzyme A and B6's critical role in transamination and decarboxylation reactions, noting isoniazid-induced deficiency.

Vitamin B7 (Biotin) & Vitamin C (Ascorbic Acid)00:26:53

Discusses biotin as a cofactor for carboxylases and Vitamin C's role in hydroxylation for collagen synthesis and its link to scurvy.

Folate (B9) and Cobalamin (B12)00:32:58

Detailed breakdown of the folate cycle and B12 absorption process, comparing the clinical presentation of their respective megaloblastic anemias and neurological symptoms.

Summary and Clinical Comparison00:45:05

A high-level summary of all water-soluble vitamins, highlighting the key clinical signs of each deficiency to assist in medical exam preparation.