Vitamin B1 (Thiamine)
- Branched-chain Ketoacid Dehydrogenase
- Pyruvate Dehydrogenase
- Alpha-ketoglutarate Dehydrogenase
- Transketolase
- Wernicke-Korsakoff Syndrome
- Beriberi
- ATP Depletion
- Aerobic Tissues Like Brain and Heart Affected First
- Deficiency Can Worsen with Glucose Infusion
Beriberi (Thiamine Deficiency)
- Thiamine Deficiency
- Dry Beriberi
- Polyneuritis
- Muscle Wasting
- Wet Beriberi
- Dilated Cardiomyopathy
- Edema
Wernicke-Korsakoff Syndrome
- Thiamine deficiency
- Confusion
- Ophthalmoplegia
- Ataxia
- Korsakoff
- Confabulation
- Personality Changes
- Memory loss
- Alcoholics
- Damage to medial dorsal nucleus
- Damage to mammillary bodies
Vitamin B12 (Cobalamin) Mechanism and Deficiency
- Cobalamin
- Large reserve pool in the liver
- Homocysteine to methionine
- Methylmalonyl CoA to succinyl CoA
- Macrocytic Megaloblastic Anemia
- Hypersegmented Neutrophils
- Neurologic defects
- Posterior column
- Lateral corticospinal tract
- Spinocerebellar tract
Vitamin B12 (Cobalamin) Deficiency Causes
- Vegans
- Pernicious Anemia
- Gastric Bypass Surgery
- Malabsorption
- Sprue
- Enteritis
- Crohn's Disease
- Diphyllobothrium latum
Folate Deficiency
- Macrocytic Anemia
- Megaloblastic Anemia
- Malabsorption
- Dietary
- Tea and Toast
- Alcoholics
- Medication-induced
- Methotrexate
- Trimethoprim
- Increased Requirement
- Hemolytic Anemia
- Pregnancy