White Adipose Atrophy Exacerbates Cold Stress And Accelerates Aging In Male Mice
Our bodies have different types of fat, and one important kind is white adipose tissue, or white fat. This fat isn’t just for storing energy; it also plays a crucial role in how our bodies respond to temperature changes. Recent research has uncovered a fascinating link between the shrinking of this white fat, particularly in males, and how quickly they age.
Scientists found that when male mice experienced a reduction in their subcutaneous white fat (the fat just under the skin), they became more sensitive to cold. This fat loss also led to an increase in their core body temperature, driven by a specific inflammatory pathway involving a molecule called cyclooxygenase-2 (COX-2) and another called prostaglandin E2. This elevated body temperature, surprisingly, was linked to an acceleration of aging characteristics and a shorter lifespan.
The good news is that the study also identified potential ways to counteract these effects. By either blocking the COX-2 pathway with a common anti-inflammatory drug or simply providing a warmer environment (a form of “thermotherapy”), the researchers were able to reduce the cold stress, normalize body temperature, lessen the signs of aging, and even extend the lifespan of these mice. These findings suggest that maintaining healthy white fat and managing body temperature could be important factors in healthy aging, and thermotherapy might offer a new approach to address conditions involving accelerated aging.
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