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A monkey model for mucoid vasculopathy.

S Sandhyamani1

  • 1Department of Pathology, SREE Chitra Tirunal Institute for Medical Science and Technology, Trivandrum, India.

International Angiology : a Journal of the International Union of Angiology
|October 1, 1992
PubMed
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Protein deficiency, particularly with high carbohydrate intake, can induce mucoid vasculopathy, a non-atherosclerotic vascular disorder. This study demonstrates a link between diet and this condition, offering a new animal model for research.

Area of Science:

  • Vascular Pathology
  • Nutritional Science
  • Connective Tissue Disorders

Background:

  • Mucoid vasculopathy is a newly identified vascular disorder characterized by acid mucopolysaccharide deposition in vessel walls.
  • It affects arteries, veins, and nerves, presenting as a non-atherosclerotic, non-inflammatory connective tissue disease.

Purpose of the Study:

  • To investigate the role of diet, specifically protein and carbohydrate intake, in the etiology of mucoid vasculopathy.
  • To establish an animal model for studying mucoid vasculopathy.

Main Methods:

  • Bonnet monkeys were fed protein-deficient diets with either normal or high carbohydrate (tapioca or corn starch) for 3 or 5 months.
  • Control groups received normal protein and carbohydrate diets.
  • Vascular and cardiac tissues were examined for pathological changes.

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Main Results:

  • Protein-deficient diets induced generalized mucopolysaccharidosis and vasculopathy in monkeys, similar to human cases.
  • High carbohydrate intake and longer feeding periods exacerbated these cardiovascular lesions.
  • Cardiovascular lesions were induced by both tapioca and corn starch, ruling out tapioca-specific toxins.

Conclusions:

  • Protein deficiency plays a pivotal role in inducing mucoid vasculopathy.
  • High carbohydrate consumption exacerbates cardiovascular lesions in a protein-deficient state.
  • The study successfully established a relevant animal model for mucoid vasculopathy.