Biochemistry · Vitamins and Minerals

Riboflavin and niacin

5 min read

Quick Orientation

Section

Definition

Objective
Understand the core idea
Keywords
Riboflavin (Vitamin B2), niacin (nicotinic acid), 1.2 to 1.7 mg/day

Riboflavin: Chemistry and Coenzyme Formation

Objective
Learn the main facts and relationships
Keywords
6,7-dimethyl isoalloxazine, D-ribitol, FMN

Riboflavin: Functions, Sources and Deficiency

Objective
Learn the main facts and relationships
Keywords
FAD, two hydrogen atoms, FMNH2/FADH2

Niacin: Chemistry and Coenzyme Synthesis

Objective
Follow the sequence and key control points
Keywords
pyridine-3-carboxylic acid, niacinamide (nicotinamide), NAD+

Niacin: Biochemical Functions

Objective
Learn the main facts and relationships
Keywords
hydride ion, NADH/NADPH, 40 oxidoreductase enzymes

Clinical Correlation

Objective
Connect the mechanism to clinical findings
Keywords
erythrocyte glutathione reductase, chronic alcoholics, pellagra

Definition