Articles tagged with Muscle Tissue
Columbia University engineers develop a novel approach to growing mature human heart muscle from blood-derived stem cells, achieving critical hallmarks of adult human heart function in just four weeks. The technique involves applying physical conditioning and electromechanical stimulation to drive rapid maturation of the tissue.
Researchers have developed a biocompatible synthetic material that replicates tissue mechanics and alters color when it changes shape, like chameleon skin. The material is composed of a unique triblock copolymer with carefully selected structural parameters, exhibiting flexibility, strain profile, and optical properties.
Scientists from Tomsk Polytechnic University have developed a technology to create individual, 3D-printed dosimetry phantoms tailored to each patient's anatomy, enabling more accurate radiotherapy treatment plans. The new phantoms can replicate complex internal structures and take into account implants and pacemakers.
Researchers developed a soft robot that mimics the stingray's flattened body shape and side fins, enabling the creation of bio-electromechanical systems. The robot features living heart cells, biomaterials, and flexible electrodes, allowing it to 'flap' its fins.
Researchers at Penn State have developed a novel method to create high-resolution and repeatable 3D polymer fiber patterns on nonconductive materials for tissue engineering. This combination of 3D printing and electrospinning enables the growth of complex tissues with seamless structures, potentially replacing expensive donor tissues.
A team of researchers has received a $1.8M grant to develop an implantable muscle stimulator that mimics regular weight-shifting to improve muscle health and prevent pressure ulcers and deep tissue injuries in patients with spinal cord injuries.
Scientists develop an artificial silk protein that can be used to engineer cardiac tissue, demonstrating its suitability for repairing damaged heart cells. The protein, eADF4(κ16), was produced in large quantities and shown to support the growth of cardiac cells, with potential implications for treating cardiac insufficiency.
Researchers at Northwestern University have developed a range of bioactive tissue papers made from materials derived from organs, which can potentially be used to support natural hormone production in young cancer patients and aid wound healing. The new biomaterials are thin, flexible, and pliable enough to fold into origami structures.
Muscles require energy to perform daily movements, and researchers have found a pathway that regulates fuel delivery based on activity level. The discovery is dependent on circadian rhythms and could impact obesity in humans.
The updated AATS guidelines offer guidance on managing ischemic mitral regurgitation (IMR), a condition associated with increased long-term mortality. For patients with severe IMR, replacement or repair of the mitral valve is considered based on specific criteria.
Researchers found that athletes with favorable genetic profiles have lower levels of muscle damage and fatigue during marathons. The study's findings open the door for personalized training based on an individual's genetic makeup.
A study has identified hormones as the cause of inguinal hernias in older men, finding that increased estrogen action and decreased testosterone levels lead to muscle tissue weakness and scarring. The researchers propose using aromatase inhibitors as a potential treatment to prevent recurrence or even surgery.
Researchers developed a minimally invasive tool to measure muscle impairment using fiber-optic technology. The technique accurately assesses muscle properties, enabling personalized treatment plans for patients with movement disorders.
Scientists at Vanderbilt University created a 3D organ-on-a-chip that can mimic the heart's biomechanical properties, allowing for the study of cardiac diseases, drug screening, and personalized medicine. The device replicates the mechanical conditions of the living heart, including electrical and biochemical environments.
A new study reveals that nectar-feeding moths can avoid oxidative damage to their muscles by converting carbohydrates into antioxidants. The researchers found that the moths rely on the pentose phosphate pathway to produce antioxidants, a mechanism that may be shared with other animals, including humans.
York University scientists have developed a 3D beating heart tissue created from three cell types that beat together as one entity. This breakthrough will facilitate better and earlier drug testing, eliminating harmful medications sooner.
Researchers have developed a technique to remove mutated DNA from mitochondria, which could help slow or reverse aging. The study found that increasing mitophagy, a form of cellular quality control, can reduce the levels of mutant mtDNA in cells.
A new study by Temple researchers shows that the BAG3 protein helps protect the heart from damage caused by reperfusion injury. By increasing BAG3 expression, cells can clear out damaged components and prevent cell death pathways.
A study published in The Journal of the American Osteopathic Association found that osteopathic manipulative treatment (OMT) helps reduce acute pain in postpartum women, regardless of delivery method. OMT resulted in a 30% decrease in lower back pain, 17% in abdominal pain, and 10% in vaginal pain.
A recent study in rats suggests that acoustic shock waves can accelerate muscle healing by increasing chemical signaling factors and waking up satellite progenitor cells. This technique, called Extracorporeal Shock Wave Therapy (ESWT), has promising potential as a non-invasive therapy complementing existing recovery regimes.
Researchers at Case Western Reserve University are developing a new approach to stabilize donor limb and tissue biology after brain death, which could lead to improved success rates in transplantation. The goal is to increase the number of viable organs available for transplant, addressing a pressing need in the field.
Researchers developed a novel super-resolution imaging method to monitor dynamic protein binding, such as talin and vinculin, in living cells. The study revealed clustered binding of vinculins to talin, with five or more molecules binding in one second.
Researchers at Gladstone Institutes develop a new method to create three-dimensional human heart tissue from stem cells, addressing limitations of existing techniques. This breakthrough enables scientists to study heart cells in their proper context, enhancing the discovery of treatments for heart disease.
Researchers successfully grew skin tissue with hair follicles and sebaceous glands in the laboratory using reprogrammed iPS cells. The tissues formed normal connections with surrounding nerves and muscle fibers, paving the way for potential functional skin transplants.
A new study reveals that mitochondrial dysfunction can lead to an imbalance in B-vitamin metabolism, resulting in genetic damage. This finding opens up new avenues for treatment, particularly targeting specific forms of B-vitamins.
Regenerative medicine scientists at Wake Forest Baptist Medical Center have developed a novel 3D printing system that can produce living tissue structures with functional blood vessels. The system uses bio-degradable materials and water-based gels to promote cell growth, enabling the creation of complex tissues such as bone, muscle, an...
A NASA study found that exposure to microgravity inhibits the ability of mouse embryonic stem cells (mESCs) to differentiate and generate most cell lineages. This inhibition has significant implications for human tissue engineering and the use of stem cells to regenerate adult tissues.
A fossilized muscle-worm, discovered by University of Bristol scientists, was named Rollinschaeta myoplena in honor of punk musician Henry Rollins. The discovery highlights exceptional preservation of soft tissues in fossils, providing details about extinct animals.
Researchers at the University of Salzburg developed a new method to estimate time since death in humans, even up to 240 hours after death, by analyzing muscle proteins and enzymes in pigs. Initial results are promising for human samples, offering a simple and efficient approach with advantages over current methods.
Patients treated with rapid cooling before catheterization showed less heart muscle damage and a reduced incidence of heart failure. Therapeutic hypothermia was especially protective in patients with large areas of at-risk myocardium.
A team of Massachusetts General Hospital investigators has developed a bioartificial replacement limb suitable for transplantation using an experimental approach previously used to build bioartificial organs. The researchers successfully engineered rat forelimbs with functioning vascular and muscle tissue, and provided evidence that th...
Researchers at UC Berkeley discover a small-molecule drug that perks up old stem cells in the brains and muscles of mice, potentially leading to multi-tissue rejuvenation. The drug inhibits TGF-beta1, a growth factor that depresses stem cell activity with age.
Two independent studies reveal that tumor-secreted molecule ImpL2 causes wasting syndrome, also known as cachexia, in fly cancer models. Researchers found that depletion of ImpL2 levels significantly reduced wasting in flies, suggesting new candidates for mediators of cachexia and novel therapeutic approaches.
A UNSW Australia collaboration uses previously top-secret technology to image whole body organs at a cellular level, reducing analysis time from 25 years to weeks. The technology, developed with Google algorithms, explores osteoporosis and osteoarthritis, revealing connections between blood, bone, lymphatics, and muscle.
Researchers found that inhibiting molecular pathways involved in damage caused by stress response can improve egg viability. This approach may help obese women conceive using therapeutic approaches.
Researchers at Duke University have devised a method to activate genes in specific locations using light, allowing for precise control over genetic expression. This technology has the potential to revolutionize genetic engineering and may lead to breakthroughs in tissue engineering and regenerative medicine.
A study by University of Cincinnati researchers found that BPA exposure affects heart function and blood pressure in mice differently for males and females. In female mice, the heart is more sensitive to stress-induced ischemic damage, leading to increased fibrosis and muscle damage.
Researchers at Stanford University School of Medicine found that faulty stem cells surrounding muscle fibers are responsible for the progression of Duchenne muscular dystrophy. A drug called losartan has been shown to inhibit fibrosis and partially restore muscle function in laboratory mice, offering new hope for potential treatments.
Washington University engineers apply a novel time-reversal technology to track movement inside the body's tissues, improving imaging of cancerous tissues and developing potential treatments. By using TRAP optical focusing, they can focus light on moving targets, allowing for sharper images even several centimeters into the skin.
Researchers found that asynchronous cell repair causes muscle fibrosis in Duchenne muscular dystrophy patients, leading to progressive weakness and tissue replacement. This study suggests that resynchronizing regenerative processes could be a potential treatment for fibrosis.
Researchers developed algorithms to visualize and predict weak spots in tendons, muscles, and bones prone to tearing or breaking. The new algorithms are 1,000 times more accurate than older methods at quantifying large strains near tiny cracks and tears.
Researchers have successfully implanted laboratory-grown vaginal organs in four teenage girls with Mayer-Rokitansky-Küster-Hauser syndrome, achieving normal function and structure over eight years post-surgery. The treatment shows promise for patients requiring vaginal reconstructive surgeries or those with vaginal cancer or injuries.
A new method for assessing individual thermal comfort has been developed by VTT, considering factors such as gender, age, body mass index, and muscularity. The method finds that women feel the cold more than men due to their lower muscle tissue, which produces heat at a lower rate.
Researchers at the University of Pittsburgh School of Medicine have made a groundbreaking discovery using human muscle-derived stem cells to repair damaged nerves. The study found that these stem cells could differentiate into neurons and glial support cells, leading to full regeneration of the sciatic nerve in animal models.
Researchers have created an engineered cardiac tissue model using human embryonic stem cells, which exhibits significant similarities to human heart muscle. The model displays spontaneous contractile activity and responds to electrical stimulation, providing a promising platform for developing reliable models of the human heart.
Researchers have created a novel scaffold for growing cardiac muscle cells using carbon nanofibers, which can conduct electricity and promote better metabolic activity. This breakthrough aims to repair damaged hearts through tissue engineering.
Researchers have developed a microparticle therapy that targets inflammatory cells causing damage after a heart attack, reducing lesion size by 50%. The therapy has potential to transform treatment of cardiovascular disease and could be translated for clinical use within two years.
A new MRI method using CEST technology measures creatine levels in the heart, providing higher resolution than traditional methods and potentially spotting heart problems earlier. This technique could lead to improved clinical decision-making and earlier detection of heart disorders.
Researchers found that strenuous exercise like running a marathon causes temporary changes in the heart muscle, particularly in less fit distance runners. These changes are reversible but highlight the need for proper preparation before marathons to minimize potential damage.
Researchers found that injecting sodium percarbonate into oxygen-deprived muscles can produce enough oxygen to preserve function and homeostasis. The treatment has the potential to extend the 'golden hour' when treatment has the highest chance of preventing death after traumatic injury.
Researchers at Tel Aviv University have developed gold nanofibers that can mimic the heart's coordinated electrical system, increasing the viability of transplanted cardiac tissues. This innovation could lead to new treatment options for patients with damaged heart tissue after a heart attack.
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 discovered a thermogenic secondary sexual character in male sea lampreys, producing heat through a rare type of fat. The 'rope tissue' plays a crucial role in courtship and mating, making it an essential component of the species' reproductive behavior.
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.
Mutations in lamin genes cause hereditary diseases like Emery-Dreifuss Muscular dystrophy and dilated cardiomyopathy by altering nuclear structure and gene expression. Restoring MKL1 activity may be a productive intervention mechanism for these devastating diseases.
Researchers at Brigham and Women's Hospital developed a new material called MeTro gel that mimics the elasticity of human tissues. The material was used to create artificial heart tissue with beating muscle cells, which could potentially advance treatments for heart disease.
Scientists at Stanford University School of Medicine have created a mouse model where degenerating muscle tissue gives off visible light, enabling precise monitoring of disease progression. This technique paves the way for quicker and more accurate assessment of therapeutic drugs.
A tiny piece of RNA, mir-125a-5p, plays a crucial role in regulating cyclical gene activity that defines the timing of tissue segment formation. This regulation is essential for proper embryonic tissue development and has implications for treating human conditions affected by embryonic development.
Researchers at Tel Aviv University found that carrying heavy backpacks can lead to nerve damage, affecting hand function and dexterity. The study's results highlight the importance of proper load distribution to prevent microstructural damage to nerves.
Researchers found that the Achilles tendon remains unchanged despite repeated high-impact loading. Human tissue samples from individuals exposed to nuclear bomb tests showed persistent radiocarbon levels decades after the event.