Articles tagged with Tissue Regeneration
Ginsenoside Rb1 attenuates damage to cerebral cortex neurons by downregulating nitric oxide, superoxide, and tumor necrosis factor-α expression in hypoxia-activated microglia. The study suggests that ginsenoside Rb1 is a promising candidate for clinical use in preventing neuronal degeneration following cerebral ischemia.
Researchers isolated very small embryonic-like stem cells from human adult tissues and demonstrated their ability to differentiate into multiple cell types, including bone, neurons, and connective tissue. The study provides evidence that these multipotent stem cells could be used for regenerative therapies.
A new discovery identifies a key protein called PCAF that promotes nerve growth in the central nervous system, leading to increased nerve fibers regrowing. The study suggests that PCAF may be used to trigger nerve regeneration and potentially lead to recovery from spinal cord injury or brain trauma.
Researchers found that Kaixin Jieyu Fang reduces cerebral white matter damage by increasing Bcl-2 protein and mRNA expression, while decreasing Bax protein and mRNA expression. This compound may provide a potential therapeutic approach for treating vascular depression through its protective effects on the brain.
Researchers have discovered that zebrafish regenerates its caudal fin by a process involving V-ATPase, which pumps hydrogen ions to generate an electrical current. This finding has implications for understanding adult tissue regeneration and developing new therapeutic strategies.
Tracheal bioengineering should be demonstrated as both effective and safe before further transplants. The authors report high mortality and morbidity rates among patients who received bioengineered tracheas, casting doubt on the field's current state.
Researchers developed polymorphonuclear leukocyte-derived novel pro-resolving medicines (NPRMs) to deliver a lipoxin A4 analog to the site of surgery, controlling inflammation and promoting tissue and bone growth. The mini-pig model revealed significant pocket depth reductions and new bone formation in NPRM+LXA4-treated sites.
Researchers at Harvard Medical School and University of Sydney develop elastic hydrogel-based cardiac tissue that beats in synchrony with natural heart muscle. The breakthrough could lead to repairing damaged hearts without organ transplants, revolutionizing the treatment for millions worldwide.
Researchers create mathematical modeling tool to analyze image data and understand cell clustering mechanisms. This breakthrough could aid in growing human tissues like liver in laboratory settings.
Researchers have developed novel techniques for engineering lungs using 3D scaffolds, enabling high-throughput studies of human lungs and accelerating progress towards lung tissue regeneration. The new methods allow for selective injection of stem cells into decellularized lung segments while preserving vascular and airway channels.
Scientists have discovered a molecular 'switch' that regulates heart cell division and could potentially be used to regenerate damaged heart tissue. The discovery was made by studying infant siblings with a rare heart defect, who exhibited unusual heart cell proliferation.
A GW researcher has discovered that gene therapy can elicit a regenerative response in pig hearts after a heart attack. The treatment utilizes the Cyclin A2 protein to stimulate cellular division and promote cardiac repair.
A University of Southern California study identifies a new population of mesenchymal stem cells in nerve and artery bundles that help maintain homeostasis. The discovery reveals that these stem cells are rich in the bundles, which contain nerves and blood vessels, and are regulated by the protein Shh.
Researchers at Kennedy Krieger Institute have successfully developed a humanized preclinical model for FSHD, mirroring gene expression and biomarker profiles of human tissue. The model enables the study of muscle regeneration over time and prediction of clinical response to therapeutic drugs.
A study in mice reveals two major pools of immune cells that promote healing and drive inflammation in the heart. Healthy hearts maintain a population of embryonic macrophages, while adult macrophages are recruited during cardiac stress, leading to inflammation. The findings provide new insights into the complex interplay between these...
Researchers have found that infusing patients with their own bone-marrow stromal cells may lead to improved cure rates for multi-drug resistant tuberculosis. The study showed 16 patients treated with MSCs were deemed cured at 18 months compared to only 5 without MSC treatment.
Mayo Clinic researcher Abba Zubair is sending human stem cells into space to see if they grow more rapidly than on Earth. The experiment aims to expand the population of stem cells that can induce regeneration of neurons and blood vessels in patients who have suffered a hemorrhagic stroke.
Researchers have identified a priming cocktail that improves the success of cardiac stem cell grafting, enhancing cell adhesion and proliferation. The discovery has potential applications for treating the 700,000 Americans who suffer from heart attacks each year.
Researchers found that transplantation of olfactory ensheathing cells improved autonomic nerve function in patients with spinal cord injury. The study used a simple electrophysiological detection method to assess sympathetic skin response, which showed significant recovery after treatment.
A study published in Neural Regeneration Research found that dl-3n-butylphthalide improved motor and sensory functions after diffuse brain injury. The compound also increased vascular density and cerebral blood flow, suggesting potential therapeutic benefits for microcirculation disorders.
Researchers found that two salamander species have distinct ways of regrowing muscles, with one relying on dedifferentiation and the other on stem cells. This discovery may lead to a better understanding of human muscle regeneration and potentially treat muscular dystrophy.
Researchers at U of T's IBBME and McEwen Centre for Regenerative Medicine identified the optimal human heart cell composition and ratio associated with heart function. The discovery has led to the engineering of the first-ever living, three-dimensional human arrhythmic tissue.
Researchers created a three-dimensional cell culture with layers of smooth muscle, connective tissue, and lining cells embedded within a nickel-titanium alloy scaffold. The hybrid heart valve performed well in a heart simulator, opening and closing under various pressures without structural vulnerability.
Researchers identify genes that promote stem cell self-renewal and tissue repair, opening up possibilities for metabolic drugs to enhance regeneration. A network of RNA-binding proteins regulates stem cell function and tissue growth during fetal development.
Researchers at UCI found that cells from a transplanted limb acquire the molecular 'fingerprint' of their new location, allowing them to transform into cells with the signature of the region they're grafted onto. This ability, called positional plasticity, has implications for regenerative therapies and cancer biology.
Researchers found that male zebrafish's breeding structures impede tissue regeneration after injury, leading to a sex-specific deficiency. This study sheds light on the tradeoffs between reproduction and survival, suggesting that natural selection may impact regenerative potential.
Researchers have discovered a key role for the follistatin/activin-1-2 switch in regulating regeneration in planarian flatworms. The more severe the tissue loss, the higher the expression of follistatin, which inhibits activin proteins and allows regeneration to begin.
Researchers at UC Davis have successfully generated oligodendrocytes with spiking properties, allowing them to produce myelin and mature into functional brain cells. The enhanced cells showed superior regenerative capacity and produced thicker, longer myelin sheaths than natural cells.
Manuela E. Gomes, a Portuguese researcher, has received the 2013 TERMIS-EU Young Scientist Award for her contributions to tissue engineering and regenerative medicine. Her research focuses on bone and cartilage tissue engineering strategies, including scaffold materials, stem cells, and dynamic cell culturing systems.
Chinese herbal medicine JSK improves spinal cord injury outcomes in rats by reducing inflammation, cell apoptosis, and boosting local oxygen supply. It promotes tissue regeneration, restores function, and supports weight-bearing movements.
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 developed tissue-engineered nerves using acellular nerve allografts and bone marrow mesenchymal stem cells to repair long-segment sciatic nerve defects. The study showed improved hind limb motor function and similar conduction velocities to autologous nerve grafting.
Recent research suggests that oxidative stress and mitochondrial damage are key contributors to the development of neurodegenerative diseases. The study highlights the importance of mitigating mitochondrial dysfunction as a potential therapeutic strategy for treating various neurodegenerative diseases.
A research team has identified a new approach to enhance normal tissue growth, which could have widespread therapeutic applications for patients with various medical conditions. The study found that epoxyeicosatrienoic acids (EETs) play a critical role in accelerating tissue growth and regeneration.
Kuo-Fen Lee's discovery of the protein P45 provides insight into a possible molecular mechanism to promote rerouting for spinal cord healing and functional recovery. P45 has been shown to have a previously unknown neuroprotective effect, preventing cell death in injured mice.
A study published in Nature Neuroscience has identified a compound called activin-A that helps trigger the regeneration of protective sheaths around nerve fibers in the brain. This finding could lead to new drug targets for enhancing myelin regeneration and restoring lost function in patients with multiple sclerosis.
Lamins are essential proteins supporting the organization of stem cell niches, which regulate proliferation and differentiation of germline stem cells. This discovery could lead to a better understanding of diseases caused by lamin mutations and their impact on tissue degeneration.
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.
Damon Runyon Cancer Research Foundation has named 17 new Fellows, awarding over $2.7 million in grants to early-career researchers conducting innovative cancer research. The recipients will work on novel projects aiming to develop more effective treatments for various cancers.
Scientists at NYU Langone Health have discovered a population of self-renewing stem cells in the nail matrix that depend on Wnt signaling proteins to regenerate bone and tissue. This breakthrough holds promise for therapies to help people regenerate lost limbs, affecting an estimated 1.7 million Americans with amputations.
Researchers at MIT have identified 12 chemical compounds that help liver cells maintain their normal function while grown in a lab dish, and multiply to produce new tissue. The compounds can also mature induced pluripotent stem cells into fully functional hepatocytes.
Researchers from Monash University found that macrophages play a crucial role in salamander regeneration. Without them, salamanders lose their ability to regenerate and form scar tissue instead. The study brings scientists closer to understanding the conditions needed for human regeneration.
Researchers are exploring new approaches to cure stroke by unlocking the brain's regenerative potential. The goal is to develop a novel stroke therapy for humans using newly identified treatments.
Harvard Stem Cell Institute researchers have identified a protein, GDF-11, that reverses the effects of aging on mouse hearts. The protein was found to reduce heart size and thickness, similar to healthy younger mice.
Researchers discover adult progenitor cells are subject to cellular senescence, leading to age-related deterioration of skeletal muscle and fat tissue. The study suggests a potential therapeutic target for future treatments, particularly the tumor suppressor p53.
Researchers found that intestinal stem-cell regeneration in fruit flies varies with the time of day, with gut healing being more effective at certain times. This study sheds light on how circadian rhythms control daily functions and has potential applications for human health, including optimizing chemotherapy timing.
Researchers at IDIBELL and VHIR have developed a treatment using adult mesenchymal stem cells to regenerate damaged lung tissue and reduce inflammation. The licensed product has shown promising results in animal models of acute respiratory distress and allergic asthma.
A new technique allows researchers to create complex tissues with any spatial organization, mimicking the body's natural complexity. The 'lock-and-key' method uses tiny shapes that lock into templates, allowing for rapid assembly of large tissues and precise control over cell alignment.
A new study on the Newt transcriptome has identified 826 proteins specific to urodeles and several newly discovered proteins that may play roles in regeneration. The data outline genes present only in regenerating tissues, which could be crucial for regenerative medicine research.
Researchers are developing stem cell-based transplant technology to recreate complex tissues and organs, with successful trials in trachea, oesophagus and lung transplantation. Experimental attempts also show promise for brain regeneration and treatment of acute refractory lung failure.
Researchers at Northwestern University are using bone marrow cells to recreate bladder muscle, vasculature, and nerve tissue, potentially replacing traditional surgery. This approach aims to address complications associated with bowel-based augmentation cystoplasty, a common surgical option for bladder dysfunction.
Researchers discovered that Achilles tendons retain high levels of carbon-14 from the Cold War era, indicating limited renewal and a slow healing process. This finding explains why tendon injuries often persist for years, but also opens up opportunities for developing new treatments to provoke dormant cells into repairing the tendon.
Scientists at the University of Manchester have discovered that reactive oxygen species (ROS) play a crucial role in tadpole tail regeneration, which could lead to new therapies for human tissue repair. The team found that manipulating ROS levels may be essential to initiate and sustain regeneration processes.
UT Southwestern researchers identified microRNA miR-15 as a regulator of the heart's ability to regenerate, with potential therapeutic applications. By understanding this molecular mechanism, scientists may be able to control the heart's regenerative process and develop new treatments for cardiovascular disease.
A new selective target in muscle regeneration has been identified by researchers at the Bellvitge Biomedical Research Institute. The association of alpha-enolase protein and plasmin plays a crucial role in regulating immune cell attraction and formation of new muscle tissue from stem cells.
Researchers have developed a new class of adhesive materials modeled on the unique properties of porcupine quills. These quills can easily penetrate tissue but are difficult to remove, and studying their mechanism could lead to less-painful needles and adhesives that bind internal tissues securely.
Researchers at Harvard University have developed a biocompatible gel-based sponge that can be molded to any shape, loaded with drugs or stem cells, and delivered via injection. The sponge pops back to its original shape once inside the body, gradually releasing its cargo before safely degrading.
Researchers at Rice University aim to inject scaffolds infused with living cells to repair damage inside tissues naturally. They plan to start trials of their dental hydrogel within two years, which could also be used for spinal cord regeneration and eye conditions.
Researchers at Ghent University have developed a simplified model to measure the absolute density of OH radicals in plasma, improving the accuracy of radical treatment for medical applications. This breakthrough could stimulate tissue regeneration and induce targeted antiseptic effects without harming neighboring tissues.
Planarians can regrow missing organs, including the intestine, after injury. Researchers identified genes that control intestinal growth and regeneration using RNA interference. The study provides insights into stem cell division, cellular events, and molecular signaling pathways involved in organ regeneration.