Animal study · Exercise · 10 Nov 2026
In mice, muscle at 12 months rebuilt glutathione more slowly after an injury than muscle at 3 months
Source: Canadian Journal of Physiology and Pharmacology
What the research found
A mouse study was published on 10 November 2026. Metabolomic profiling after an acute skeletal muscle injury compared glutathione synthesis at 12 months and at 3 months. Glutathione is built from glutamic acid and cysteine. The rate-limiting enzyme glutamate cysteine ligase makes gamma-glutamyl cysteine, which then combines with glycine. Clustering showed a delayed glutathione synthesis profile in the 12-month muscle, with an age-dependent delay in gamma-glutamyl cysteine accumulation. The authors read that delay as aging changing the metabolite profile inside this pathway. These are mice, not a recovery plan for people. The abstract used here does not give a p value or the number of mice in each group. DOI 10.1139/cjpp-2026-0121. Not medical advice.
Evidence level: Animal study. Results in animals or cells often don't carry over to people.
Read the original at Canadian Journal of Physiology and Pharmacology
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