Fight Aging! Newsletter, August 5th 2019

In conclusion, with study of the frailty syndrome still in its infancy, frailty analysis remains a major challenge. It is a challenge that needs to be overcome in order to shed light on the multiple mechanisms involved in the pathogenesis of this syndrome. Although several mechanisms contribute to frailty, immune system alteration seems to play a central role: this syndrome is characterized by increased levels of pro-inflammatory markers and the resulting pro-inflammatory status can have negative effects on various organs. Future studies should aim to better clarify the immune system alteration in frailty, and seek to establish exactly when the inflammation appears. An Age-Related Epigenetic Change that Degrades Muscle Stem Cell Function https://www.fightaging.org/archives/2019/07/an-age-related-epigenetic-change-that-degrades-muscle-stem-cell-function/ Stem cells support their tissues by generating daughter somatic cells and various forms of pro-regenerative signaling. Unfortunately, this activity declines with age. In the better studied stem cell populations, such as those in muscle tissue, this appears to be more a matter of signaling changes in the local environment than intrinsic damage to the stem cells themselves. The stem cells spend ever more time in a quiescent state, emerging ever more rarely to generate new daughter cells. At the high level, these changes must be a reaction to rising levels of molecular damage and its consequences such as chroni...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs

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