Question

Vitamins-
Vitamin B12 : Cyanocobalamin

35 yr old man who had a partial gastrectomy 1 year ago due to severe gastric ulcer disease presented to Dr. Franklin’s clinic with complaints of loss of balance while walking, confusion, weight loss and the eyes and palms of his hands look very pale (anemic). He has also been taking alcohol and cigarette for the past 10 years. He only consumes plant products. The Doctor diagnosed a vitamin deficiency.
Questions
1. Name the vitamin deficient in this man?

. 2. Mention a special substance which is found in the stomach that protects this vitamin from the harsh gastric juice?

3. Which class of vitamins does the above vitamin belong? (1 credit) 4. List 3 other vitamins that are in this class?

5. Give 3 reasons why this man developed this vitamin deficiency?

6. What other class of vitamins do you know?

7. What pigment produced in the liver is very important in the digestion and absorption of this other class of vitamins you mention in question 6?

8. What abdominal organ stores this pigment you mentioned in question 7?

Answer 1

1.After a partial gastrectomy surgery the expected vitamin deficiency which can occur is because of lack of Vitamin B12 or B12 deficiency

2.The intrinsic factor present in the stomach protects this vitamin from harsh gastric juice like hydrochloric acid.

3.This vitamin belongs to the classification of vitamin B or water soluble vitamin( In that it is classified in as vitamin B12)

4.The other vitamin in this class are

• Folate
• Pyridoxine
• Niacin
• Thiamine