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The primary aim of this study is to determine whether a peripheral blood or graft lymphocyte phenotype of immune senescence or exhaustion is different between operationally tolerant and non-tolerant liver allograft recipients.
HIV infection is associated with premature aging of the immune system. It is believe that the persistent inflammation that accompanies HIV infection is a major contributor to premature immune aging. Fish oil has well-documented anti-inflammatory properties. In this randomized, clinical trial, we're testing whether a 12-week course of fish oil supplementation will reverse premature aging in HIV-infected older adults.
This will be a small study aimed at determining the effects of oral Immulina consumption on the immune system in elderly individuals.
Sarcopenia, the age-associated loss of skeletal muscle mass and strength, is a frequent precursor to functional impairment, disability, falls, and loss of independence in the elderly. The prevalence of sarcopenia is high, with ≥ 45% of the U.S. population aged 60 years or older sarcopenic. Some possible causative factors include a decline in muscle protein synthesis, inactivity, hormonal changes, pro-inflammatory conditions, and reactive oxygen species within the muscle mitochondria, which may all be exacerbated by inadequate nutritional intake. Since dietary protein is targeted to muscle and muscle mass represents the largest tissue in the body, protein nutrition plays a significant role in muscle metabolism. SPECIFIC AIMS The specific aim of this proposed study is to determine the effect of PS-IPC supplementation on muscle mass, muscle strength, muscle quality, and inflammatory / immune markers in healthy older adults. Subjects scoring 4 - 10 on the Short-Physical Performance Battery and aged 60-85 years will consume PS-IPC supplements or placebo three times daily for 12 weeks. HYPOTHESES 1. Subjects consuming PS-IPC will have a greater increase in muscle mass and muscle strength compared to a control group consuming a placebo supplement. 2. Subjects consuming PS-IPC will demonstrate a greater increase in the fractional rate of muscle protein synthesis compared with a placebo control group. 3. Subjects receiving PS-IPC will have a reduction in plasma concentrations of various inflammatory markers of immune function, compared to subjects consuming the placebo.
The purpose of this research study is to explore ways to improve motor, cognitive and immune functions for aging adults using multiple techniques like lifestyle changes and risk factor management, as well as medications and supplements believed to have a positive effect on health.