Michael Harrop
Well-known member
https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-025-06557-5
Sarcopenia is a type of muscle loss that occurs with aging and/or immobility.
Abstract
Background
Sarcopenia, a prevalent geriatric syndrome, is influenced by factors such as inflammation, immune deficiency, and oxidative stress. In elderly individuals, alterations in the microbiome, including reduced biodiversity and functional changes, significantly contribute to the progression of the disease. Targeting the gut-muscle axis has emerged as a promising therapeutic strategy to mitigate age-related muscle atrophy and dysfunction.
Methods
This study employed fecal microbiota transplantation (FMT) to restore intestinal homeostasis in patients with sarcopenia. Muscle mass was measured using bioelectrical impedance analysis, while muscle function was assessed through grip strength and the five-time sit-to-stand test. Inflammatory markers, including tumor necrosis factor-α (TNF-α) and C-reactive protein (CRP), were also analyzed. Eighty-seven patients received resistance training (RT) treatment, while eighty-five patients received FMT combined with RT treatment, with a follow-up period of 24 weeks.
Results
After 24 weeks, the resistance training (RT) group showed a partial remission (PR) rate of 54.7% and a complete remission (CR) rate of 32.4%. The FMT plus RT group demonstrated a PR rate of 66.5% and a CR rate of 46.7%. Significant improvements induced by FMT treatment were observed in clinical markers of muscle mass, function, and inflammation.
Conclusions
These results underscore the promise of microbial-based therapies, including fecal microbiota transplantation (FMT), as groundbreaking strategies for addressing sarcopenia. The research indicates that integrating FMT with resistance training could improve muscle mass and function while alleviating inflammation in sarcopenia patients, presenting a hopeful avenue for effective management of the condition
Donor recruitment. The selection of unrelated donors adhered to the following criteria: (1) individuals aged between 18 and 30 years; (2) a Body Mass Index (BMI) ranging from 18 to 25 kg/m2; (3) absence of any pathological indications during physical assessments; (4) no past or recent occurrences of infectious diseases, nor gastrointestinal, metabolic, neurological, or other systemic conditions; (5) no recent consumption of medications known to adversely affect gut microbiota composition; (6) maintenance of a regular lifestyle, adherence to a healthy diet, engagement in suitable physical activity, harmonious family relationships, and abstention from smoking and alcohol consumption; (7) successful completion of blood and stool examinations 4 weeks prior to donation, encompassing standard blood and stool analyses as well as screenings for potential pathogens or infectious diseases. All our donors fulfilled these stipulated requirements. The detailed characteristics of donor subjects used in this study are presented in Table 1.
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