Arginase-II gene deficiency reduces skeletal muscle aging in mice.

Matteo Caretti, Duilio Michele Potenza, Guillaume Ajalbert, Urs Albrecht, Xiu-Fen Ming, Andrea Brenna, Zhihong Yang

Department of Endocrinology, Metabolism, and Cardiovascular System, Faculty of Science and Medicine, University of Fribourg, Fribourg 1700, Switzerland.Department of Endocrinology, Metabolism, and Cardiovascular System, Faculty of Science and Medicine, University of Fribourg, Fribourg 1700, Switzerland. · pubmed

Paper

Abstract

Age-associated sarcopenia decreases mobility and is promoted by cell senescence, inflammation, and fibrosis. The mitochondrial enzyme arginase-II (Arg-II) plays a causal role in aging and age-associated diseases. Therefore, we aim to explore the role of Arg-II in age-associated decline of physical activity and skeletal muscle aging in a mouse model. Young (4-6 months) and old (20-24 months) wild-type (

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Research summary

The paper investigates the role of arginase-II in skeletal muscle aging, which is directly related to the mechanisms of aging and age-associated decline in physical activity. While it addresses a significant aspect of aging, the findings appear to be more of a solid contribution rather than a groundbreaking advance in the field. The focus on a specific enzyme and its deficiency in a mouse model provides valuable insights, but the implications for broader longevity research may be limited.

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