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The effect of micronutrient supplementation on disease progression and death in simian immunodeficiency virus-infected juvenile male rhesus macaques. | LitMetric

AI Article Synopsis

  • - The study examined how micronutrient supplements affect the progression of simian acquired immunodeficiency syndrome (SAIDS) in juvenile male rhesus macaques infected with simian immunodeficiency virus.
  • - The experiment involved two groups of macaques: one group received regular chow while the other received chow plus supplements containing 2-3 times the normal micronutrient levels, monitored over 120 weeks with various health metrics.
  • - Results showed that the supplemented group experienced no advantages in health measures and had a significantly higher death rate compared to the nonsupplemented group, indicating that micronutrient supplementation might not be beneficial in managing SAIDS.

Article Abstract

Background: We investigated the impact that micronutrient supplementation has on the progression of simian acquired immunodeficiency syndrome (SAIDS).

Methods: Twenty-four simian immunodeficiency virus-infected juvenile male rhesus macaques were randomized into 2 groups. One group was given certified chow, and the other group was given chow and a supplement that contained 2-3 times the estimated nutritional requirement of micronutrients. Virological, immunological, and body composition measurements were taken every 4 weeks for 120 weeks.

Results: There was no difference between groups in weight gain, body mass index (BMI), crown-heel length, waist circumference, total tissue mass, lean mass, bone mineral content, or bone mineral density. The rhesus macaques on the supplemented diet had a higher death rate (hazard ratio, 2.39; P<.001) than those on the nonsupplemented diet; death in both groups was associated with a higher viral load set point during the early phase of infection. Additionally, higher body weight, BMI, crown-rump length, and lower viral load set point were protective from death in both groups.

Conclusions: Micronutrient supplementation did not significantly alter the progression of SAIDS with respect to changes in body composition and immunological characteristics. A significantly higher rate of death was observed in rhesus macaques on the supplemented diet.

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Source
http://dx.doi.org/10.1086/430951DOI Listing

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