Results 211 to 220 of about 27,568,409 (275)

The Divergent Effects of Nicotinamide Riboside and High‐Intensity Exercise Training on Skeletal Muscle Epigenetic Aging

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
This study investigated the effects of nicotinamide riboside supplementation and high‐intensity interval training on skeletal muscle epigenetic aging. Our findings reveal that both interventions may modify epigenetic aging, with the muscle‐specific MEAT and DunedinPACE clocks showing the most responsiveness and links to mitochondrial abundance ...
Aino Heikkinen   +17 more
wiley   +1 more source

Ammonia Metabolism in the Aging Liver: Emerging Mechanistic Insights

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
Liver aging may weaken ammonia‐detoxification reserve by disrupting mitochondrial ureagenesis, GS‐mediated scavenging, glutamine metabolism, and metabolic zonation. This emerging framework links impaired nitrogen handling to potential hepatic stress amplification and systemic crosstalk, while highlighting the need for direct validation in physiological
Heng Zhang, Guangyu Liang, Anding Liu
wiley   +1 more source

Sirtuin 1 (SIRT1); SIRT2 [PDF]

open access: yesScience-Business eXchange, 2014
openaire   +1 more source

Unveiling the AcSirt2‐FOXO‐Mitophagy Axis: Insights Into Mitochondrial Quality Control and Delayed Aging in Apis cerana

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
Age‐related downregulation of AcSirt2 impairs mitochondrial homeostasis in old bees. AcSirt2‐mediated deacetylation of FOXO enhances transcriptional activity, upregulating antioxidant enzymes (SOD, CAT) and promoting PINK1/Parkin‐mediated mitophagy. This pathway facilitates autophagosome formation and clearance of damaged mitochondria, reducing ROS ...
Qiang Ma   +8 more
wiley   +1 more source

HNRNPC Succinylation Influences the Neurodegeneration of Alzheimer's Disease Through YME1L1‐Mediated Mitochondrial Metabolism

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
In Alzheimer's disease, SIRT5 downregulation enhances TRIM25‐mediated succinylation of HNRNPC at K50, increasing its stability. Stabilized HNRNPC upregulates YME1L1 expression via an m6A‐dependent mechanism, leading to OPA1 hydrolysis dysregulation, mitochondrial fission‐fusion imbalance, ROS overproduction, and neuronal death.
Xuewei Li   +4 more
wiley   +1 more source

Diosgenin Alleviates Age‐Related Sarcopenia by Promoting Satellite Cell Proliferation and Myogenic Differentiation via Activation of the SIRT1/PGC‐1α Signaling Pathway

open access: yesAging Cell, Volume 25, Issue 8, August 2026.
As a critical bioactive component of Polygonatum sibiricum, diosgenin improves age‐related declines in skeletal muscle mass and function by activating the SIRT1/PGC‐1α pathway, upregulating the expression of the myokine METRNL and IGF‐1, and promoting satellite cell proliferation and myogenic differentiation.
Xin Zeng   +9 more
wiley   +1 more source

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