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Lemurs Live Without Age-Related Inflammation, Challenging Human Aging Assumptions

Lemurs Live Without Age-Related Inflammation, Challenging Human Aging Assumptions

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Studies on lemurs reveal a lack of age-related inflammation, suggesting that inflammaging might not be an inevitable aspect of human aging and opening new avenues for research into aging and health.

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Recent studies on lemurs have provided new insights into the aging process and the role of inflammation, often referred to as "inflammaging," in humans. Led by biological anthropologist Elaine Guevara from Duke University, research published in the Journal of Comparative Physiology B examined inflammation and oxidative stress in two species of lemurs: ring-tailed and sifaka. Interestingly, the findings revealed that neither lemur species showed significant age-related increases in inflammation markers or oxidative stress. In fact, some data suggested a slight decline in inflammation as these primates aged, contradicting the common assumption that inflammaging is an inevitable part of aging.

These results imply that inflammaging may not be universal among primates, and by extension, may not be an unavoidable aspect of human aging. The study compares aging patterns between captive lemurs and humans, emphasizing that environmental factors could influence inflammatory processes significantly. Guevara's team measured oxidative stress through urine samples, highlighting a non-invasive method for assessing biological aging.

Furthermore, the research points to the potential for different aging mechanisms in wild vs. captive primates, encouraging future studies in natural environments. Understanding why lemurs avoid inflammaging could inspire new strategies to prevent or mitigate age-related diseases in humans, such as heart disease, diabetes, and cancer.

This groundbreaking work underscores the importance of comparative primate studies in unraveling the complexities of aging. As the global population ages rapidly, insights gained from lemurs may help develop interventions to enhance health span and quality of life in later years.

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