Articles tagged with Muscle Cells
A new study reveals that smooth muscle cells play a more complex role in the formation and stability of atherosclerotic plaques than previously thought. The researchers found that 82% of smooth muscle cells within advanced lesions cannot be identified using traditional methods, leading to confusion about cell identity.
New research reveals that smooth muscle cells surrounding brain blood vessels regulate blood flow in response to neuronal activity. The study contradicts previous theories on pericytes' role in blood vessel formation and function.
Researchers have identified a key mechanism behind diabetes-related heart damage and developed a potential treatment strategy. By targeting the movement of sugar molecules and enzymes inside heart cells, they were able to restore normal function in diabetic rat hearts.
Researchers found that vinculin levels increase with age, altering the shape and performance of cardiac muscle cells, leading to a healthy adaptive change. The findings suggest that vinculin could be an important therapeutic target to slow down the decline of heart muscle vitality.
A new study published in Cell found that human heart muscle cells are primarily formed during childhood, with only 40% replaced throughout a person's life. This discovery suggests it may be possible to stimulate the rebuilding of lost heart tissue through therapeutic strategies.
Researchers identified smooth muscle cells as a major contributing factor to vascular stiffness, a significant contributor to hypertension. The study's findings suggest that targeting these cells may lead to new possibilities for drug treatments for the disease.
Researchers found that honokiol reduces excess growth of cardiac muscle cells, decreases ventricular wall thickness, and protects heart muscle cells from oxidative stress. Honokiol activates SIRT3, a protective protein associated with delayed aging, stress resistance, and metabolic regulation.
A new study by UCLA professor Jingyi Jessica Li and Mark Biggin from Lawrence Berkeley National Laboratory concludes that transcription plays the largest role in determining protein abundance. The research highlights the importance of accurate measurement and analysis methods for modeling gene expression.
Scientists develop mathematical model to measure and map electrical flow between heart cells, pinpointing clusters of cells at epicenter of complex rhythms. This approach could enable precision-targeted, minimally invasive treatments for life-threatening arrhythmias.
A molecule found in some plants, 7,8-DHF, has been shown to mimic the effects of a growth factor induced by exercise in female mice. It increases energy expenditure without suppressing appetite, helping them maintain a healthy weight on a high-fat diet. In contrast, male mice still develop obesity and diabetes.
A new theoretical model proposes that heart muscle cells don't necessarily beat as a single entity, but rather as a bundle of contractile units. The alignment of these bundles is predicted to depend on the elasticity of the extracellular matrix and can affect the beating strength of the cell.
Researchers successfully generated mature, functional skeletal muscles in mice by growing cells in a dish and implanting the graft near a normal muscle. This breakthrough could lead to treatments for various muscle disorders, including Duchenne muscular dystrophy.
Researchers at the University of Maryland School of Medicine have identified a critical protein called C protein that enables heart muscle fibers to contract synchronously. This discovery could lead to new treatments for severe arrhythmias that cause sudden death, affecting millions worldwide.
A Johns Hopkins study finds that protein BDNF maintains heart muscle vitality and may link depression to heart disease. The research suggests a possible biochemical explanation for the relationship between mental and physical well-being.
Research reveals a new mechanism for proper sarcomere organization, controlled by protein cofilin-2 that trims actin filaments to precise lengths. This finding explains mutations in the cofilin-2 gene resulting in nemaline myopathy and highlights its importance in muscle function.
Scientists have pinpointed two new genetic target genes SUN1 and SUN2 that may lead to developing new treatments for Emery-Dreifuss muscular dystrophy, a devastating condition causing muscle wasting and stiffening. The discovery opens up new possibilities for patients with the disease, who currently have no effective treatment options.
Researchers discovered two potential therapeutic targets to treat pulmonary arterial hypertension, a deadly disease marked by high blood pressure in the lungs. The targets involve suppressing abnormal proliferation of smooth muscle cells and signaling molecules involved in the disease.
Researchers at Sanford-Burnham Medical Research Institute have developed a novel technique to promote tissue repair in damaged muscles. Cyclic bursts of a STAT3 inhibitor can replenish muscle stem cells, leading to their differentiation into muscle fibers, which could provide a new therapeutic approach to treating muscle diseases.
New research from Rockefeller University suggests that the speed of a signal plays a crucial role in determining an embryonic cell's fate. The study found that cells respond better to signals with pulses rather than continuous ones, and that slower increases in signal strength can lead to weaker responses.
Researchers found that endostatin helps maintain stable neural circuit function through homeostatic plasticity. This discovery challenges previous views on the protein's functions and opens new avenues for understanding neurological disorders.
A zebrafish model has identified a drug compound that appears to reverse arrhythmogenic cardiomyopathy (ACM), a hereditary disease leading to sudden death in young people. The findings provide a key first step in developing new therapies for this condition, for which there is currently no preventive treatment.
A study by University of Maryland researchers has identified a toxic protein that damages muscle cells inside the arteries of children with progeria, a rare genetic disorder. The discovery may help explain how cardiovascular disease develops in people aging normally and could lead to new treatments for the condition.
Researchers at Cedars-Sinai Heart Institute identified a heart-specific form of protein BIN1 responsible for sculpting tiny folds in pockets on the surface of heart muscle cells. These microfolds trap chemicals controlling heartbeat, protecting against arrhythmia and heart failure.
Researchers found that osteoporosis medications inhibit the ability of cells to repair their outer membranes, which can lead to jawbone destruction and other serious side effects. The study suggests that patients taking these drugs should talk to their physicians about potential risks.
Researchers at Duke University have successfully grown lab-grown muscle that demonstrates self-healing properties, integrating into mice quickly and contracting powerfully. The breakthrough, led by Nenad Bursac, uses well-developed contractile muscle fibers and satellite cells to create a microenvironment for regeneration.
Researchers have developed a new technique to generate large concentrations of skeletal muscle cells and muscle progenitors directly from human pluripotent stem cells. This method, described in Stem Cells Translational Medicine, uses growth factors to guide the stem cells towards a muscle fate, avoiding genetic modification.
A study published in Cell Reports reveals how excess smooth muscle cells develop in arteries affected by pulmonary hypertension, a potentially fatal disease. The research provides new insights into the disease's progression and may lead to novel treatments targeting specific cell types.
Researchers at the Gladstone Institutes have devised a method to reprogram skin cells into cells that closely resemble beating heart cells, exhibiting twitching and contracting patterns. The addition of one genetic factor, Oct4, accelerated the transformation, revealing promising results for pharmaceutical-based therapies.
Researchers at Vanderbilt University have discovered that mechanical forces generated by the rhythmic expansion and contraction of cardiac muscle cells play an active role in the initial stage of heart valve formation. This study provides a new perspective on the process, shedding light on how to create artificial heart valves.
Researchers from NOAA Fisheries and Stanford University found that some petroleum compounds disrupt normal cardiac function in young tuna by blocking ion channels. This discovery provides new insights into the impact of oil pollution on fish hearts, with potential applications for assessing environmental damage.
Researchers at the University of Michigan have successfully reprogrammed scar tissue cells to form colonies of beating heart cells. The discovery could pave the way for regenerating damaged heart tissue after a heart attack.
A new method allows for large-scale generation of high-quality human embryonic stem cells from excess IVF embryos, increasing the supply for potential therapies. This breakthrough method enables production of stem cells without destroying embryos, making it a significant step forward for stem cell research.
Researchers at the University of Chicago and University of Massachusetts, Amherst, are studying the physical laws governing cellular materials. They aim to catalog phases, understand contraction mechanisms, and develop novel materials for various applications. Gardel's lab focuses on actin filaments, while Ross studies microtubules.
The study found that the Sunday Driver gene regulates myonuclear positioning and muscle function. Mutations in this gene lead to unevenly spaced nuclei and defective muscle contraction, indicating that mispositioned nuclei may be a possible cause, not consequence, of human congenital myopathies.
The American Society for Cell Biology's Celldance 2013 video contest recognized top videos showcasing cellular processes. The first-place winner received a $500 cash prize for his time-lapse video of muscle cell differentiation, while two second-place winners shared a $250 cash prize each.
A recent study published in Science reveals that comb jellies, a simple aquatic animal, possess complex cell types like neurons and muscles. The analysis of the Mnemiopsis leidyi genome shows that these cells may have evolved independently in comb jellies, after they diverged from other animals.
Researchers at Monash University have isolated muscle precursor cells from pluripotent stem cells using a purification technique, allowing them to differentiate into muscle cells. This breakthrough could lead to the development of new treatments for degenerative diseases such as Muscular Dystrophy and Parkinson's disease.
Researchers discovered a modified pacemaker-like enzyme, GSK-3 beta, that mimics CRT's biological effects on heart muscle cells. This breakthrough could lead to new treatments for heart failure patients who don't qualify for traditional CRT therapy.
Researchers have identified Sca1 stem cells as the key players in the regeneration of heart muscle cells in mammals. These stem cells increase their activity in response to heart damage, leading to the formation of new heart muscle cells.
Researchers at Boston Children's Hospital successfully grew human muscle cells in a dish using a combination of compounds identified through a rapid culture system. They also boosted muscle mass and reversed disease in a mouse model of Duchenne muscular dystrophy, paving the way for potential clinical trials.
Researchers have discovered that zebrafish chemicals can differentiate human stem cells into muscle cells in the laboratory, making muscle cell therapy a more realistic clinical possibility. The discovery has the potential to revolutionize treatments for muscular dystrophy and diabetes.
Researchers found that tumors release factors into the bloodstream that inhibit muscle fiber repair, leading to muscle loss in cancer patients. The study identifies new strategies and drug targets for treating cancer cachexia, a condition that causes life-threatening weight loss and lean muscle mass loss.
Researchers discovered that individual molecular muscles within cells respond differently to various forces, shedding light on how cells 'feel' their environment. A computer model predicts cell behavior in response to altered levels of these molecules, with implications for understanding cellular disorders like cancer and neurodegenera...
Cardiology researchers at Emory have developed a solution to improve the impact of stem cell therapy on heart function. By packaging mesenchymal stem cells in alginate capsules, they can increase cell retention and survival, promoting healing factors that encourage regeneration of blood vessels.
A laboratory study at the University of Michigan has shown promising results in regenerating cardiac birth defects using amniotic stem cells. The researchers believe this approach could one day help thousands of babies born each year with congenital heart defects.
Research reveals how genetic mutations in α-actinin-3 affect fast-twitch muscles, leading to increased endurance capacity and enhanced response to training. The study provides insight into the skeletal muscle adaptations advantageous to elite endurance athletes.
Case Western Reserve researchers identified Kruppel-like factor (KLF) 15 as a master regulator of vascular health, blocking blood vessel inflammation that can lead to heart attacks and strokes. The discovery offers hope for targeted anti-inflammatory therapies for vascular disease.
Researchers have developed a new gene therapy approach to convert fibroblasts from human fetal heart cells and skin into heart muscle cells. This technique may potentially treat heart disease by regenerating a healthy heart within the damaged one.
Researchers found that muscle cells in knockout mice grew larger, but lost strength due to oxidative stress. The study suggests that limiting oxidative stress could help prevent age-related muscle loss and improve overall health.
Researchers have identified muscle cells as the primary source of positional control in regenerating planarians, enabling them to respond to wounds and regenerate missing tissues. This discovery opens new avenues for understanding regeneration and could potentially inform treatments for human injuries and diseases.
Researchers discover that a burnt sugar derivative, THI, improves muscle regeneration in mice with Duchenne muscular dystrophy. The substance protects the body's supply of sphingosine 1-phosphate, essential for turning stem cells into specific types of cells and regenerating damaged tissue.
Scientists have identified a novel mechanism of cardiac regeneration in zebrafish, where muscle cells from the atrium actively migrate into damaged parts of the heart muscle in the ventricle. This process, known as transdifferentiation, results in the formation of new ventricular tissue and restoration of cardiac function.
Researchers have identified unique patterns of chemical marks on histones that distinguish quiescent from active stem cells in muscles of young mice. These findings suggest that stem cells may be more versatile than previously thought, with the potential to become different types of tissue entirely.
Researchers at the University of Edinburgh have made a breakthrough in understanding how induced pluripotent stem cells (iPSCs) are created. They found that the process is not just a reversal of normal cell generation, but involves changes to skin cells during reprogramming. This discovery could lead to more efficient and cost-effectiv...
A team of researchers at the University of Minnesota has discovered that a single gene, Mesp1, can be used to create different cell types, including heart, blood, and muscle cells, from stem cells.
A new study published in The Journal of Physiology found that hormone replacement therapy (HRT) significantly improves muscle function down to the muscle fibre level in postmenopausal women. HRT has been shown to reduce age-related decline in muscle mass and strength, particularly at cellular and molecular levels.
Scientists at Wake Forest Baptist Medical Center identified two sub-types of pericytes, Type 1 forming only fat cells and Type 2 forming only muscle cells. The study suggests that Type 2 pericytes play a critical role in successful muscle regeneration.
UCSF scientists discovered that muscle repair requires the action of two types of cells: eosinophils and fibro/adipogenic cells. Eosinophils help clear cellular debris and collaborate with FAP cells to trigger muscle regrowth.
A study published in the Journal of Clinical Investigation found that loss of MKP-5 enhances muscle regeneration and prevents degeneration in a mouse model of Duchenne muscular dystrophy. The results suggest that inhibiting MKP-5 could be a useful therapeutic approach for treating degenerative muscle diseases.
Researchers discover exosomes shuttle protein Syt4 from neurons to muscle cells, enabling cell-to-cell signaling mechanisms. This finding may lead to loading therapeutic agents like RNAi into exosomes to target disease-carrying cells.