muscles
Associations of Coexisting Metabolic Dysfunction-Associated Steatotic Liver Disease and Sarcopenia-Related Abnormalities With Adverse Clinical Outcomes Across Obesity States.
Metabolic dysfunction-associated steatotic liver disease (MASLD) is associated with adverse liver and non-liver outcomes, but the impact of coexisting sarcopenia-related abnormalities (e.g., low muscle strength [MS], muscle mass, and physical performance) remains unclear. In a prospective UK Biobank cohort (n...
Sulforaphane as a Therapeutic Target for Sarcopenia in Type 2 Diabetes: Mechanistic Insights and Translational Evidence.
Sulforaphane, a bioactive isothiocyanate abundant in cruciferous vegetables, has emerged as a potential multi-target therapeutic agent capable of mitigating these pathological processes. Here, using evidence from preclinical and clinical literature, we review the mechanistic and translational evidence linking sulforaphane with...
Aquaporin-4 Orchestrates Muscle Cell Differentiation and Satellite Cell Preservation: A Novel Target in Age-Related Muscle Decline.
BACKGROUND
Impaired muscle regeneration is a key contributor to age-related muscle decline, yet the molecular mechanisms linking muscle water homeostasis to regenerative failure remain incompletely understood. Aquaporin-4 (AQP4), a major skeletal muscle water channel, may have functions beyond water transport that...
Frailty Rather Than Sonographic Muscle Measurement Predicts Outcome in Liver Cirrhosis.
BACKGROUND
Sarcopenia and frailty are frequent in patients with liver cirrhosis and are associated with morbidity and mortality. Given the limitations of computed tomography (CT) for routine assessment of muscle loss and the need for practical bedside assessment, we aimed to...
Correction to "Mitochondria transplant therapy improves regeneration and restoration of injured skeletal muscle".
Disruption of the Muscle-Brain Axis in Ageing: Role of Myokines in Sarcopenia and Neurodegeneration.
This narrative review analyzes how myokines act as key links in communication between skeletal muscle and the brain, focusing on the impact of aging on this axis. Although the current literature links defects in this signaling pathway to sarcopenia, neurodegeneration,...
Motor Cortex Hyperexcitability Is Coupled to Neuromuscular Dysfunction in Aged Mice.
Age-related weakness is strongly associated with disability and mortality in older adults. While muscle atrophy contributes to weakness, strength declines at a faster rate than muscle mass, implicating neural mechanisms such as changes at the spinal cord and neuromuscular junction....
Exploring the Impact of Urolithins A and B on Muscle Health: A Transcriptomic Analysis in Human Myotubes.
BACKGROUND
Urolithin A (UA) and urolithin B (UB) are gut microbiota-derived metabolites of ellagitannins reported to influence mitochondrial function, inflammation and muscle metabolism. Their comparative transcriptomic effects in human skeletal muscle cells remain undefined. We characterized UA- and UB-induced molecular responses...
A probiotic Bifidobacterium pseudocatenulatum converts hesperidin to bioactive hesperetin and improves metabolic dysfunction in aging mice.
Dietary flavonoids often require microbial metabolism to generate bioactive metabolites that influence host physiology. Hesperidin, a citrus flavanone glycoside, exhibits limited intestinal absorption and depends on gut microbial biotransformation to yield its active aglycone, hesperetin. Hesperetin activates CDGSH iron-sulfur domain...
Pancreatic Cancer Disrupts Circadian Patterns of Gene Expression in Cardiorespiratory Muscles.
BACKGROUND
Cancer cachexia, a debilitating syndrome characterized by muscle wasting, significantly impacts survival in gastrointestinal cancers like pancreatic cancer. Emerging evidence suggests a link between cancer cachexia and disrupted circadian rhythms in peripheral tissues, including locomotor muscles. However, circadian dysregulation in...
Aging of Skeletal Muscle: From Molecular Mechanisms to Therapeutic Interventions.
Skeletal muscle aging is a major cause of frailty, metabolic dysfunction, and loss of independence in later life, yet it cannot be explained by muscle mass loss alone. Recent single-cell, multi-omics, and translational studies show that aged muscle is shaped...
Integrating Leg-Press Strength and Nutritional Status Improves 16-Year Mortality Risk Stratification in General Older Adults.
BACKGROUND
Malnutrition and muscle weakness are critical prognostic factors for mortality in older adults. While indices like the Geriatric Nutritional Risk Index (GNRI) are well-established, the long-term prognostic value of integrating nutrition with muscle strength (MS) remains insufficiently established in community-dwelling...
UA-30 mitigates systemic aging and motor decline by inhibiting RalA signaling in naturally aged mice.
Aging, characterized by progressive physiological decline and systemic dysfunction, represents a major risk factor for age-related diseases such as sarcopenia, which involves fibrosis that disrupts muscle regeneration and function. Effective therapeutic strategies remain limited. Here we report UA-30, a novel...
Bifidobacterium adolescentis-derived nicotinic acid improves host skeletal muscle mitochondrial function to ameliorate sarcopenia.
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...
