NUTRITIONAL CYTOPENIA IN MONKEYS RECEIVING THE GOLDBERGER DIET

Area of Science:

• Nutritional Science
• Primate Research
• Gastroenterology

Background:

• The Goldberger diet, composed of refined foodstuffs, is known to induce deficiency syndromes in primates.
• Previous studies indicated potential deficiencies in this diet affecting blood parameters and overall health.

Purpose of the Study:

• To investigate the effects of supplementing the Goldberger diet on young rhesus monkeys.
• To identify specific nutritional factors essential for preventing deficiency diseases in primates.

Main Methods:

• Rhesus monkeys were fed a modified Goldberger diet, with various supplements including ascorbic acid, liver extract, thiamin chloride, nicotinic acid, and riboflavin.
• Monkeys were monitored for clinical signs, blood counts (leucopenia, anemia), and overall health.
• Shigella paradysenteriae isolation from stools was performed.

Main Results:

• Unsupplemented diet led to leucopenia, anemia, gingivitis, diarrhea, and death.
• Liver extract supplementation resulted in normal growth, development, and sustained normal blood picture.
• Ascorbic acid, thiamin, nicotinic acid, and riboflavin alone did not prevent deficiency symptoms.
• Nicotinic acid and riboflavin combination showed an erythropoietic effect.
• Shigella paradysenteriae was isolated from several deficient animals.

Conclusions:

• The Goldberger diet, even with supplementation of certain vitamins, is inadequate for maintaining health in young rhesus monkeys.
• The deficiency appears related to a substance previously termed vitamin M.
• Further research is needed to understand the interplay between dietary deficiency, infection, and hematological abnormalities.