Fight Aging! Newsletter, September 9th 2019

We examined human lung tissue from COPD patients and normal control subjects, and found a substantial increase in p16-expressing alveolar cells in COPD patients. Using a transgenic mouse deficient for p16, we demonstrated that lungs of mice lacking p16 were structurally and functionally resistant to CS-induced emphysema due to activation of IGF1/Akt regenerative and protective signaling. Fat Tissue Surrounds Skeletal Muscle to Accelerate Atrophy in Aging and Obesity https://www.fightaging.org/archives/2019/09/fat-tissue-surrounds-skeletal-muscle-to-accelerate-atrophy-in-aging-and-obesity/ Researchers here show that the fat tissue surrounding skeletal muscle that is observed in older and obese individuals contributes to declining muscle mass and strength. The most compelling evidence arises from transplantation of fat tissue between mice, showing that it produces harmful effects. The researchers further suggest that cellular senescence is an important factor in this process, which dovetails nicely with what is known of the way in which excess visceral fat tissue accelerates aging. The presence of larger than usual amounts of visceral fat increases the number of lingering senescent cells in the body, and senescent cells broadly disrupt tissue structure and function via their inflammatory signals. The accumulation of senescent cells with age is now accepted as a contributing cause of aging, and an energetic industry aiming to produce senolytic therapies capab...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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