muscles
Quantitative Muscle MRI Fat Fraction as a Biomarker of Disease Severity in Mitochondrial Myopathies.
BACKGROUND
Quantitative muscle MRI is increasingly used to assess structural muscle damage in inherited myopathies, but its application in primary mitochondrial myopathies (PMM) has not been systematically evaluated in large cohorts. Because PMM are clinically and genetically heterogeneous, objective imaging biomarkers...
Integrative Muscle-Adipose Score (IMAS): A Novel Unified, Sex-Sensitive Body Composition-Based Survival Predictor Enhancing Risk Stratification After Liver Transplantation.
OBJECTIVE
To investigate the potential of integrating muscle and fat compartments into a novel and unified score for outcome prediction in a bicentric European cohort of LT recipients.
BACKGROUND
Body composition (BC) reflects nutritional status and metabolic reserves and influences outcomes after orthotopic...
Tumor-Secreted ADAMTSL4 Activates Latent TGFβ1 to Drive Cancer Cachexia.
UNLABELLED
Cancer cachexia is a devastating wasting syndrome with no approved therapies. In this study, we identify the tumor-derived glycoprotein ADAMTSL4 as a circulating factor associated with body weight loss in preclinical cachexia models and patients with colorectal and lung cancers....
Skeletal Muscle-Derived Extracellular Vesicles During Eccentric and Concentric Exercise Promote Muscle Regeneration After Injury.
BACKGROUND
Skeletal muscle injuries significantly impair mobility and function, yet effective therapeutic interventions remain limited. Both eccentric exercise (EE) and concentric exercise (CE) promote muscle repair, but the underlying mechanisms are not fully understood. Muscle-derived extracellular vesicles (mEVs) have emerged as...
Musculoskeletal (Mal)adaptations in Response to a > 30 000-km Running Challenge.
BACKGROUND
Ultra-endurance sports are increasingly popular, yet the long-term physiological consequences of sustained extreme training loads remain poorly understood. In particular, the effects of prolonged ultra-endurance exercise on skeletal muscle structure, function and molecular remodelling are largely unknown. This case study...
NCOA4-Mediated Ferritinophagy Contributes to Iron Overload-Driven Ferroptosis of Senescent Myoblasts in Mice.
Sarcopenia is an age-related pathological syndrome characterized by progressive and generalized loss of skeletal muscle mass and function, with muscle atrophy representing its cardinal pathological hallmark. Ferroptosis, an iron-dependent regulated cell death, has been implicated in the pathogenesis of muscle...
Clinical Trial: Intensive Supervised Nutritional Therapy Versus Guideline-Based Nutritional Advice for Sarcopenia in Decompensated Cirrhosis-A Randomised Controlled Trial.
BACKGROUND
Sarcopenia is highly prevalent in decompensated cirrhosis and independently predicts adverse outcomes. Although nutritional therapy is guideline-recommended, evidence comparing specialist dietitian-supervised nutritional care with routine physician-delivered dietary advice remains limited.
AIM
To compare the efficacy of dietitian-supervised intensive nutritional therapy with physician-led...
Stable clocks, rewired rhythms: circadian remodeling in skeletal muscle during aging, cachexia, and type 2 diabetes.
In mammals, nearly every cell contains an intrinsic circadian clock that functions both as a timekeeping system and an environmental sensor, integrating external cues to maintain alignment between internal physiology and the external environment. While the core clock machinery is...
Systemic Inflammatory Biomarkers and Cancer-Associated Cachexia: A Narrative Review.
Cancer-associated cachexia (CAC) is a multifactorial syndrome characterized by systemic inflammation, muscle wasting, and progressive functional decline, affecting up to 80% of patients with advanced cancer. The inconsistent diagnostic criteria limit comparability across studies and hinder translation into clinical practice....
Muscle and Bone Implications of GLP-1 Receptor Agonists and Fragility Fractures in Older Adults With Diabetes.
Intermuscular Adipose Tissue as a Multimodality Quantitative Imaging Biomarker: Evidence Across Metabolic, Cardiovascular and Oncologic Diseases.
Intermuscular adipose tissue (IMAT) refers to adipose tissue located between muscle groups or beneath the muscle fascia, and its accumulation is closely linked to impaired muscle quality, reduced contractile function, and adverse metabolic profiles, establishing it as a core component...
Circulating granulocyte colony-stimulating factor as a sex-unbiased global marker of lung and colorectal cancer cachexia pre-clinical models.
Cancer cachexia, affecting up to 80% of patients with advanced cancer, is characterized by metabolic and inflammatory dysregulation driven by tumour- and host-derived factors. Although cytokines are central to cachexia pathogenesis, their circulating profiles and transcriptional relevance across models and...
Accelerated Anthropometric Ageing Links Loss of Physical Function and Lower Extremity Body Mass.
BACKGROUND
Ageing is associated with anthropometric changes that have been linked to functional limitations and disease risk. However, previous work is limited to a few anthropometric measures, such as body mass index or waist-to-height ratio. Current imaging technology allows a rapid,...
Effects of exercise and nutritional interventions on muscle-specific strength in older adults: A systematic review and meta-analysis.
PURPOSE
Deficient muscle-specific strength has been recognized as a key component of sarcopenia. However, the impact of various interventions on muscle-specific strength has not been systematically reviewed. This study aims to provide a systematic summary of research examining the effects of...
Do muscle strength cut-offs used to define sarcopenia affect trajectories of disability progression in basic activities of daily living in older adults?
OBJECTIVE
This study aims to analyse trajectories of disability progression in basic activities of daily living (BADLs) as a function of sarcopenia, using different cut-off points for defining low muscle strength (LMS).
METHODS
A longitudinal study included 3,328 participants from the English Longitudinal...
