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NUTRITIONAL CYTOPENIA (VITAMIN M DEFICIENCY) IN THE MONKEY.
W C Langston1, W J Darby, C F Shukers
1School of Medicine, University of Arkansas, Little Rock.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Researchers identified a new essential nutrient, vitamin M, crucial for preventing nutritional cytopenia in rhesus monkeys. This vitamin is vital for maintaining normal blood counts and overall health in primates.
Area of Science:
- Primate nutrition
- Hematology
- Nutritional science
Background:
- Nutritional deficiencies can cause severe health issues in primates.
- Previous research focused on known vitamin B complex factors.
Purpose of the Study:
- To identify the specific nutrient deficiency causing a syndrome in rhesus monkeys.
- To determine if known B vitamins could prevent the observed cytopenia.
Main Methods:
- Rhesus monkeys were fed a deficient diet.
- Supplementation with specific vitamins (riboflavin, nicotinic acid, thiamin) was tested.
- Effects were assessed through clinical signs, weight, and blood counts.
Main Results:
- A deficiency syndrome characterized by anemia, leukopenia, and weight loss was observed.
- Riboflavin and nicotinic acid supplementation did not prevent the deficiency.
- Dried brewers' yeast and liver extract prevented the cytopenia and supported normal growth.
Conclusions:
- The observed nutritional cytopenia is not due to a lack of vitamin B, riboflavin, or nicotinic acid.
- A previously unidentified essential nutrient, termed vitamin M, is required for primate nutrition.
- Vitamin M is crucial for preventing nutritional cytopenia in monkeys.
