77 - Vitamin Deficiency Symptoms Vitamin A deficiency...

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Unformatted text preview: Vitamin Deficiency Symptoms Vitamin A deficiency Xeropthalmia in rat - dryness of the cornea Early stages are curable Cured with 6 days treatment with Vitamin A Late Stages are incurable - Vitamin A deficiency Clouding of cornea, ulceration, keratomalacia Vitamin A deficiency Night Blindness Imagine you are in the car at the left and this is what you see. Car approaches, note sign on the right. Car passes. Notice distance down the road, signs. Normal vision Car passes. Notice distance down the road, signs. Car passes. Notice distance down the road, signs. Night Blindness Eye fails to adapt quickly to decreased light. Follicular hyperkeratosis. Goose flesh. Pustulation occurs and is confused with acne. Vitamin A deficiency. Human shoulder. Histological section of skin. Hair follicle with hyperkeratosis. (Excess keratinized tissue). Pellegra. Niacin deficiency. Dermatitis, diarrhea, dementia. Same patient after niacin treatment. Riboflavin deficiency. Generalized dermititis & growth failure. Marked keratitis of cornea. 1 month of riboflavin treatment. Only slight traces of deficiency symptoms remain. 2 months of riboflavin treatment. No signs remain. Thiamin deficiency - Polyneuritis. Arched back & hyperextended legs, spastic gait, loss of balance.hyperextended legs, spastic gait, loss of balance....
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This note was uploaded on 02/09/2010 for the course ANSC 221 taught by Professor Staff during the Spring '08 term at Purdue University-West Lafayette.

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77 - Vitamin Deficiency Symptoms Vitamin A deficiency...

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