Articles tagged with Muscle Atrophy
Researchers discovered that declining cardiolipin levels in aging muscle mitochondria trigger a defense mechanism to protect cells from ROS damage. By mimicking this decline in young mice, they found that restoring cardiolipin levels can reverse muscle wasting and prevent early deaths.
A study published in the Journal of Cachexia, Sarcopenia and Muscle reveals that deleting transforming growth factor-beta 1 (TGF-β1) from macrophages enhances muscle regeneration and mitochondrial function. The research found that this approach protected against obesity-related muscle wasting and improved exercise performance.
Research found that Roseburia inulinivorans is positively associated with muscle mass and strength in both young and older adults. The study suggests that R inulinivorans may play a causal role in muscle strength, with notable increases in forelimb grip strength and larger muscle fibre size in mice treated with the bacteria.
A zebrafish model was used to test the functional significance of rare SMN1 variants in children with false positive SMA diagnoses. The research found that both variants were functional and did not cause the disease. This breakthrough could prevent unnecessary SMA therapies and provide families with security.
Researchers found that the tenascin-C protein promotes a thriving community of functional muscle stem cells needed for efficient muscle regeneration. Aging reduces skeletal muscle regeneration due to lower levels of TnC and impaired muscle stem cell function.
Researchers found that large MAF family transcription factors can reactivate the dormant 'Type IIb fast-twitch program' in human muscle, leading to improved glycolytic capacity and increased exercise capacity. Athletes with higher expression levels of these factors had faster and more powerful movements.
Researchers found that Ozempic-induced weight loss decreased lean mass by 10% in mice, with most of the lost weight coming from non-skeletal tissues. While some skeletal muscles did shrink, others stayed the same size, and strength was affected for some but not all muscles.
Researchers explore the biological mechanisms of myopenia in RA, finding it affects individuals of all ages, with notable muscle mass loss without concurrent fat loss. The review highlights the diagnostic and therapeutic relevance of myopenia in RA, emphasizing the importance of early detection and tailored management strategies.
A recent study published in Stem Cell Reports found that microgravity accelerates skeletal muscle degeneration, leading to a decline in muscle strength and protein content. The researchers used an ISS lab-on-chip model to simulate ageing-related muscle loss and discovered that electrical stimulation can mitigate these changes.
Researchers at Stanford University have developed a new CRISPR technology called CRISPR-TO that can transport RNA molecules to specific locations within neurons, enabling repair and regeneration. The technology has shown promising results in increasing neurite growth by up to 50% in mouse brain neurons.
Researchers calculated two indicators from body composition data to examine the relationship between muscle quality and long-term care need. People with low phase angles and extracellular to intracellular water resistance ratios were found to be at high risk of becoming dependent, especially when values fell below median thresholds.
A study published in GeroScience found that weight training improves memory and brain anatomy in older adults with mild cognitive impairment. The results showed that strength training protected against atrophy in key brain areas associated with Alzheimer's disease.
Researchers at the University of Houston College of Pharmacy have identified a potential therapeutic target to repair injured muscles. They discovered that fibroblast growth factor–inducible 14 (Fn14) plays a crucial role in regulating satellite cell stability and function, which are responsible for muscle growth, repair, and regenerat...
A team from Tokyo Metropolitan University has successfully implanted myoblasts onto healthy muscle in mice using an extracellular matrix scaffold. This breakthrough treatment could treat ageing-related muscular atrophy without scarring, offering a promising avenue for regenerative medicine.
Researchers use various muscle atrophy models to study pathophysiology and develop treatment strategies. Cellular models allow detailed molecular mechanism studies, while animal models simulate human aging and disease-induced conditions.
Researchers from Kyushu University have developed an antibody that targets and prevents the dysfunction of hepatocyte growth factor (HGF), a critical protein for skeletal muscle development, regeneration, and repair. The new antibody, 1H42F4N, blocked nitration of HGF and did not disrupt its activity.
The SpaceX CRS-31 mission to the International Space Station includes studies on in-space manufacturing, cardiac health, and a method for repairing spacecraft damaged by debris. Multiple payloads sponsored by the ISS National Laboratory are bound for the orbiting outpost.
A University of North Florida biologist has received a four-year NIH grant to investigate the functional role of dual-specificity phosphatase 4 (Dusp4) in skeletal muscle atrophy. The study aims to characterize Dusp4's role in modulating muscle size and strength.
A clinical study confirmed the safety of aceneuramic acid in treating distal myopathy with rimmed vacuoles (GNE myopathy), a rare disease causing progressive muscle weakness. The treatment, developed for an ultra-orphan drug, showed efficacy and was approved by Japan's Ministry of Health, Labour and Welfare.
A study by Cold Spring Harbor Laboratory has discovered two regulator proteins that work together to keep the splicing process on track. The research, led by Professor Adrian Krainer, identifies SRSF1's interactions with other proteins, providing new insights into how this critical regulator works.
A new study reveals how accumulation of IMAT drives diseases such as muscle loss, type 2 diabetes, and cardiovascular disease. Regular exercise and healthy diet can prevent and reverse IMAT accumulation.
Researchers have developed a non-invasive optical-acoustic imaging method using short laser pulses to create images of muscle tissue. This breakthrough technology has the potential to improve diagnosis and treatment of spinal muscular atrophy (SMA), a rare genetic disorder causing muscle degeneration.
Researchers have discovered that synchronization between the central circadian clock and peripheral clocks in muscle and skin is crucial for maintaining tissue function and preventing degenerative processes associated with aging. Time-restricted feeding can partially replace the central clock and enhance the autonomy of the muscle cloc...
A study reveals that increased levels of TP53INP2 correlate with greater muscular strength and healthier ageing in humans. Boosting this protein's presence improves muscle mass and function, suggesting a potential strategy to combat sarcopenia.
A recent study examined cholesteryl esters and found that prolonged inactivity may affect people of different ages differently. The researchers observed changes in middle-aged subjects but not in older adults when comparing pre- and post-bed-rest levels.
Researchers created a first-of-its-kind super minigene to study the Survival Motor Neuron 2 (SMN2) gene, which causes spinal muscular atrophy. The compact model allows scientists to see how changes play out across the entire gene expression process.
A phase II clinical trial found Muse cell-based product CL2020 to be highly tolerated and improved ALS symptoms, but may not halt disease progression. The treatment's efficacy depends on combining it with other drugs for future treatments.
A recent study reveals that the tethering of mitochondria to the endoplasmic reticulum plays a crucial role in muscle development, regeneration, and maintenance. The researchers propose targeting the Notch signaling pathway as a potential therapeutic option for muscle atrophy caused by mitochondrial abnormalities.
A novel workflow has been developed to identify patients with 5q-SMA, a common type of spinal muscular atrophy, more accurately. The new approach uses a bioinformatics pipeline that masks the paralogous regions of the SMN1 gene, allowing for more precise detection of genetic variants.
Researchers have found that the protein Musashi-2 plays a crucial role in regulating type 2a muscle fiber mass and metabolism. The study reveals that Msi2 knockout mice exhibit reduced muscle mass, decreased myoglobin and mitochondria levels, and impaired sugar metabolism.
Researchers have identified KIAA0930 as a key factor causing muscle atrophy in cancer cells, which could lead to the development of new anti-cachexia therapies. The study found that KIAA0930 knockdown cells showed increased muscle mass and weight compared to control cells.
Researchers at Koc University have identified a novel molecular mechanism that can slow down or block muscle wasting in cancer patients. The activation of EDA2R signalling promotes skeletal muscle atrophy, and deleting either EDA2R or NIK enzyme can protect the organism from muscle loss.
Researchers found that metformin + leucine (MET+LEU) treatment prevents myotube atrophy by reversing cellular senescence and improving proteostasis. The study used C2C12 myoblasts, aged mouse single myofibers, and human primary myotubes to demonstrate MET+LEU's skeletal muscle cell-autonomous properties.
Researchers developed the first wearable sensor for monitoring muscle atrophy, a condition typically caused by degenerative disease or aging. The sensor can measure small-scale volume changes in overall limb size and monitor muscle loss of up to 51%. This technology has the potential to create less burden on patients and improve treatm...
A study by Kumamoto University researchers reveals LSD1's role in regulating skeletal muscle response to environmental stress. The findings suggest that LSD1 moderates muscle adaptation to environmental conditions, with potential implications for maintaining muscle health and preventing diseases such as sarcopenia.
A recent study found that resistance training significantly improved muscle strength and reduced inflammation in older adults with sarcopenia. The research, conducted by Brazilian researchers, also showed that physical exercise can improve sleep quality and reduce chronic inflammation.
A new study found that eccentric contractions prove most effective in preventing muscle wasting and damage after immobilization. Strengthening the unaffected arm through weightlifting also counteracted muscle atrophy, with a stronger cross-education effect observed for eccentric contractions.
Researchers found that strengthening hip abductor muscles can provide effective compensation for weaknesses in knee extensor muscles, leading to improved mobility in people with below-the-knee amputations. The study tested the hypothesis in eight military personnel who had undergone a lower limb amputation and showed promising results.
Researchers found that the F-box gene FBXC-58 is a novel mediator of dietary restriction effects on extending the health span of Caenorhabditis elegans. FBXC-58 prevents muscle aging and extends longevity through an S6 kinase-dependent pathway.
Researchers found that blocking mitochondria fusion or fission triggers an inflammatory process, leading to muscular atrophy. This 'sterile inflammation' is not linked to infectious processes and has physiological relevance in mice with mitochondrial fragmentation.
Researchers from Tokyo Metropolitan University have discovered a protein called PDGF-B that not only promotes muscle growth but also enhances myotube maturation, leading to increased contractile strength. The findings offer a game-changing approach to treating muscle injuries and atrophy.
Researchers identified a link between skeletal muscle atrophy and the loss of two types of myosin. The study showed that mice lacking these proteins experienced severe muscle atrophy and died within four weeks, providing a potential animal model for treating human muscle-wasting disorders.
Researchers found that vitamin D deficiency increases the risk of dynapenia, an age-associated loss of muscle strength, by 70-78%. Vitamin D supplementation was shown to reduce this risk. The study analyzed data from over 3,000 individuals aged 50 and over, highlighting the importance of vitamin D for maintaining muscle strength.
Researchers found that low irisin blood levels could represent an early prognostic marker of muscle atrophy in microgravity environments. The study also suggested that irisin may help prevent the onset of atrophy and aging of skeletal muscle during bed rest.
Researchers from Tokyo Metropolitan University have developed a method to directly measure the strength of skeletal muscle myotubes by analyzing wrinkles formed on an elastic substrate when stimulated with electric pulses. This new technique is more sensitive than existing measures and has great potential for accelerating drug discover...
Researchers from Tokyo Medical and Dental University found a novel GLP-1R agonist, PF1801, that can suppress muscle inflammation and restore muscle strength in patients with polymyositis. The study suggests PF1801 could be used to treat patients with muscle wasting disease and improve symptoms associated with inflammatory myopathies.
Researchers at the University of Connecticut have developed a potential breakthrough treatment for rotator cuff tears, using an advanced polymer to stimulate regeneration of both the tendon and muscle. This approach addresses the real problem of muscle degeneration and fat accumulation that often leads to re-injury after surgery.
Scientists discover that activating TAK1 in skeletal muscle promotes muscle growth and prevents atrophy, with implications for treating conditions like cancer, COPD, and genetic diseases. The research also highlights the importance of maintaining healthy neuromuscular junctions.
Researchers at Kobe University discover that immobilization induces loss of muscle mass by disrupting calcium levels and triggering the KLF15-IL-6 pathway. This finding may lead to the development of a treatment for muscle loss, known as sarcopenia, which affects aging societies.
Researchers from IRB Barcelona have discovered that damaged mitochondria accumulation triggers inflammatory processes leading to muscle atrophy. Correcting mitochondrial function through increased BNIP3 levels can mitigate inflammation and muscle loss, offering potential tools for promoting healthy ageing.
Researchers have shown that physical exercise normalizes metabolic abnormalities caused by cancer, reducing anemia and associated fatigue. Exercise regenerates metabolism, blunting excessive blood cell formation and destruction, leading to improved tolerance of chemotherapy and radiotherapy.
A new fluorescent reporter mouse line enables direct analysis of mitophagy activity in vivo. Increased levels of mitophagy activity were observed in atrophic soleus muscles following hindlimb immobilization, revealing muscle disuse increases mitophagy.
Researchers identified a novel oligo-DNA molecule that induces myoblast differentiation, potentially treating muscle atrophy and related diseases. The 'myogenetic oligo-DNA' (myoDN) acts as an aptamer, binding to protein nucleolin and activating the p53 signaling pathway.
Researchers propose a two-phase theory for neurodegenerative disorders, with distinct activities of protein signaling pathways in each phase. This understanding could lead to personalized treatment approaches for patients in different stages of the disease.
Researchers discovered that natural loss of foot muscles in rodents shares similarities with skeletal muscle atrophy, a condition typically associated with injury or disease. The study found that cells in the foot muscles disassemble proteins responsible for contraction and increase gene expression degrading these proteins.
A study published in PLOS ONE found that critically ill children develop muscle atrophy, with diaphragm thickness decreasing by 11% over six days. The study also found that older children experienced more pronounced muscle loss, particularly in their arms and legs.
Researchers found that supplementing mitofusion 2 protein could prevent nerve degeneration, muscle atrophy, and paralysis in a mouse model of Lou Gehrig's disease. The study suggests this approach may be a novel therapeutic strategy for the disease.
A study published in European Journal of Nutrition found that dietary isoflavone aglycone can reduce muscle atrophy by blocking the apoptosis-dependent pathway in muscle fibers. The researchers observed significantly thicker muscle fibers in mice fed with AglyMax supplement compared to those on a normal diet.
Researchers at the University of Iowa have discovered a natural compound in green tomatoes that stimulates muscle growth and protects against muscle wasting. Tomatidine, found in green tomatoes, generates changes in gene expression opposite to those that occur in muscle cells affected by muscle atrophy.
A new study by the University of Michigan Health System has identified a potential therapy to prevent muscle atrophy after ACL tears. By blocking the hormone myostatin, researchers aim to restore athletic and functional abilities in the short term and prevent osteoarthritis in the long term.