Articles tagged with Brain Tissue
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Researchers observed a 5.1% increase in brain tissue thickness after brain bypass surgery, reversing loss and improving neurocognitive function in patients with impaired blood flow. The study offers hope for treating chronic cerebrovascular disease and its associated neurocognitive impairment.
A McGill biologist's findings raise doubts about the Differential Adhesion Hypothesis, proposing that repulsive cues may drive tissue formation instead of adhesion. The study reveals a cycle of adhesion followed by repulsion at embryonic cell boundaries.
Researchers from Washington University School of Medicine successfully blocked harmful immune cells from entering the brain in mice with a condition similar to multiple sclerosis. The breakthrough discovery, made using an anti-cancer drug, prevents symptoms and provides early evidence for a potential new treatment.
Researchers found that PARIS protein accumulates in brain cells with mutated parkin gene, leading to decreased PGC-1alpha levels and neurodegeneration. This discovery offers promising new drug targets to slow or stop Parkinson's disease progression.
Researchers at Tel Aviv University develop a 2-in-1 vaccine that repairs vascular damage in the brain, protecting against both Alzheimer's and stroke. The vaccine activates macrophages to clear away damaging amyloid proteins, preventing further damage and promoting repair.
Damage to a specific area of the brain and decreased noradrenaline levels are linked to multiple sclerosis progression. The study found that noradrenaline plays a crucial role in preventing inflammation and preserving blood-brain barrier integrity.
A study using MRI techniques found that over 80 patients with unclear-onset strokes could safely receive clot-busting therapy, resulting in 45% having a good clinical outcome and 29% an excellent one. However, female patients and those with severe initial assessments fared poorly with treatment.
Patients with schizophrenia who take antipsychotics for extended periods may experience a measurable decrease in brain tissue over time. The study suggests that long-term antipsychotic use can contribute to progressive changes in brain volume, even after controlling for other factors.
A new study sheds light on the complex process of recovery from aphasia after a stroke, finding that inter-hemispheric coordination plays a crucial role. The research suggests that the involvement of both hemispheres in language functions is not as binary as previously thought.
This special issue of Biological Psychiatry highlights the benefits and challenges of postmortem research in studying psychosis, schizophrenia, and other psychiatric disorders. Advances in science and technology have expanded the scope of postmortem work, allowing for more detailed studies of brain structure and function.
Researchers are working to identify factors that cause neural implants to fail, which can occur within six to eight weeks. A team led by the University of Houston is using advanced software and imaging techniques to analyze brain cell responses to implants, aiming to improve prosthetic limbs for amputees.
Researchers at MIT have created computer models that show a face shield can significantly reduce traumatic brain injury by impeding direct transmission of blast waves to the face. The study's findings offer a potential solution for preventing head injuries sustained by US troops during explosions.
Reduced pericyte levels have been found to disrupt blood flow and worsen the breakdown of the blood-brain barrier, allowing toxic substances to reach brain tissue. This can lead to structural damage to neurons, impaired learning and memory, and increased risk of neurodegenerative diseases like Alzheimer's.
Scientists discovered that blocking a molecule's function decreased bone hardness, causing hearing loss, while reactivating it restored the bone's hardness and hearing. The study reveals a molecular pathway regulating bone matrix properties, which may explain rare hearing disorders and connect to conditions like osteoporosis.
Researchers at UCLA have identified a molecular program that drives brain cell connections after stroke, activating genes to form new connections. The program differs between young and aged adults, with older brains slowing down recovery through simultaneous activation of repair and collapse genes.
A study by LSU Health Sciences Center researchers found that Docosahexaenoic acid (DHA), a fish oil component, can protect brain tissue and promote recovery in acute ischemic stroke even when treatment is delayed. DHA treatment reduced swelling and facilitated neurobehavioral recovery.
Researchers found that patients with occupations requiring high verbal skills had greater tissue loss on the right side of the brain, while those with low verbal skills had greater loss on the left. This effect was most pronounced in the temporal lobes of the brain.
Scientists have identified powerful antibiotic properties in cockroach and locust brains, effective against MRSA and E. coli without harming human cells. These novel molecules could lead to new treatments for multi-drug resistant bacterial infections.
A new study has uncovered the genetic mechanisms controlling the growth of collateral circulation, which can provide oxygen to starved tissues in the event of a heart attack or stroke. The researchers identified a section of DNA involved in variation in collateral vessel density and diameter.
A study at the American Association of Physicists in Medicine meeting found that intensity modulated arc therapy can effectively treat brain tumors while reducing damage to surrounding sensitive tissues, such as ears and parts of the brain. This technique uses continuous rotation of X-ray sources around a patient during treatment.
Researchers at Johns Hopkins have discovered that a compound in dark chocolate may protect the brain after a stroke by increasing cellular signals. The study found that mice who ingested epicatechin suffered significantly less brain damage than those who did not.
Researchers at Johns Hopkins found that resveratrol increases levels of an enzyme shielding nerve cells in the brain from damage, protecting against ischemic stroke. The study suggests that moderate wine consumption may have a lower incidence of cardiovascular disease.
A study by UCLA researchers found that nearly half of US adults with European ancestry carry the FTO gene variant, which is associated with weight gain but also linked to brain tissue loss. The findings suggest that individuals carrying this gene allele are at risk for a variety of diseases, including Alzheimer's and dementia.
A new brain implant made from silk has been developed to monitor and control seizures, as well as transmit signals past damaged spinal cord areas. The ultrathin flexible implants can record brain activity more faithfully than thicker devices, with potential applications in epilepsy, spinal cord injuries, and other neurological disorders.
Researchers are exploring the role of beta defensins in chronic inflammation within the aging human brain, including Alzheimer's disease. Preliminary findings suggest that beta defensins may contribute to neuronal cell death due to compromised immunomodulation.
A team of researchers led by Dr. Christopher Fasano successfully derived floor plate tissue from human embryonic stem cells, a crucial signaling center in brain development. This achievement paves the way for better understanding of neurodegenerative diseases like Parkinson's.
Researchers link differences in brain network harm to impairment in stroke patients, offering a new predictive tool for clinicians. This approach, known as resting-state functional connectivity, may help determine treatment and assess its effects.
Researchers have found a potential way to reduce brain damage caused by strokes using a simple blood-pressure cuff. By applying brief periods of high pressure to the arm, the goal is to prepare the brain for reduced blood flow without lasting damage.
Researchers found a new genetic risk factor, TMEM106B, associated with frontotemporal lobar degeneration, a subtype of early-onset dementia. The study suggests that alterations in this protein may contribute to the development of FTLD.
A toxic form of the neural protein Elk-1 is linked to three degenerative brain disorders: Parkinson's disease, Alzheimer's disease, and Huntington's disease. The study found that this modified form of Elk-1 strongly associates with pathological markers present in diseased tissue from these diseases.
A recent study published in the British Medical Journal found that angiotensin receptor blockers (ARBs) are associated with a significant decrease in Alzheimer's disease and dementia occurrence. Patients taking ARBs had up to a 50% lower chance of developing dementia compared to those on other medications.
Scientists have recorded spontaneous epileptic activity in human brain tissue for the first time, revealing that electrical connections between nerve cells cause the disease. This discovery offers real hope for finding new treatments for epilepsy, which affects 45 million people worldwide.
Researchers found that naked mole rat brain tissue can survive for over half an hour without oxygen, which could lead to new treatment options for brain injuries caused by heart attacks, strokes, and accidents. This adaptation may also provide insights into how to prevent permanent human brain damage after temporary loss of oxygen.
Researchers discovered that Drosophila's brain circadian clock neurons require information from peripheral tissues to synchronize with temperature cycles. Disruption of key gene nocte in peripheral cells interferes with temperature synchronization, highlighting the chordotonal organs as crucial temperature receptors.
Researchers at Ohio State University have found that giving supplemental oxygen to animals during a stroke can reduce damage to brain tissue surrounding the clot. The timing of delivery is critical to achieving this benefit, and using pure oxygen delivered by mask was also effective.
Researchers at the University of Edinburgh have discovered specific immune cells that attract corrupted proteins, increasing the risk of variant CJD in younger individuals. This finding may lead to better diagnosis methods and potential vaccine development.
Researchers identified semaphorin 5A, a gene involved in neuronal contact and communication, as a potential biological target for pharmaceutical intervention in individuals with autism. The study utilizes genome-wide association studies and extends prior research findings to brain tissue samples.
A Clemson University bioengineer has developed an injectable biomaterial gel that promotes the growth of neural stem cells at the site of a traumatic brain injury, structurally repairing damaged brain tissue. The procedure shows promise for treating head injuries caused by car accidents, falls, and gunshot wounds.
Studies show that prototype helmets can improve blunt-impact protection for ground troops without compromising ballistic protection. A survey also reveals high incidence of driving-related anxieties among post-deployment soldiers, highlighting the need for better tools for diagnosis and treatment of traumatic brain injury in the civili...
Researchers at Whitehead Institute have shown that a single gene mutation can cause a transmissible neurodegenerative disease in mice, similar to human fatal familial insomnia. The study demonstrates that mutations associated with prion diseases are sufficient to cause the disease and the spontaneous generation of transmissible prions.
Researchers from UCLA and Pittsburgh found that obese individuals have a 8% less brain tissue than those with normal weight, while overweight individuals have 4% less tissue. This increased risk is linked to severe brain degeneration and cognitive decline.
A study has found that divers who hold their breath for several minutes have elevated levels of the protein S100B, which can signal brain damage. However, these levels are temporary and it remains unclear whether prolonged apnea can cause long-term brain damage.
A unique case study found that first and second languages are represented in different places in the bilingual brain. Damage to one language was more severe than the other, with Hebrew skills impaired more significantly.
A UCLA study found that miniscule levels of carbon monoxide during pregnancy cause permanent brain damage in fetuses. The exposure level was established as safe by Cal/OSHA but still led to oxidative stress and protein loss.
Researchers have detected a peptide in cerebrospinal fluid that can indicate the onset of Alzheimer's disease, potentially allowing for earlier diagnosis and treatment. This discovery raises new opportunities for combating the disease, which currently requires treatments to be started after significant brain damage has occurred.
Researchers found that a specific region of the brain, orbitofrontal cortex and ventral striatum, is associated with higher levels of social reward dependence and emotional warmth. This discovery may help understand why some people are more sociable than others.
Chronic smoking impairs brain blood flow recovery after long-term heavy drinking, according to a new study. Brain perfusion in frontal and parietal cortices improved with abstinence, but smokers showed significantly less recovery, particularly in the frontal lobes.
Researchers found that lithium promotes DNA repair in healthy cells but not in brain tumor cells, protecting healthy hippocampal neurons from radiation-induced damage. This mechanism could provide a way to increase the radiation dose to kill tumor cells while sparing healthy tissue.
Researchers found strong conservation of gene expression in brain tissue across five species, including mammals and non-mammalian vertebrates. This suggests that neurons play a more central role in functional interactions than cells in other tissues.
Researchers at Georgetown University Medical Center have discovered an experimental agent that can reverse damage from spinal cord injury by blocking inflammatory reactions. The study shows that microglial cells release neurotoxic factors after injury, leading to lasting nerve cell damage.
Researchers found that socially isolated mice suffered more brain damage and higher inflammation levels after a stroke compared to paired mice. Social support was shown to reduce damaging inflammatory responses and increase anti-inflammatory cytokines in the brain.
A new study by UT Southwestern Medical Center researchers has pinpointed damage inside the brains of Gulf War syndrome patients, linking their illness to chemical exposures. The research identifies areas of the brain that function abnormally, including the basal ganglia, hippocampus, and thalamus.
Researchers at Georgetown University Medical Center have found that a class of Alzheimer's disease drugs may prevent long-term damage from traumatic brain injury (TBI) in animals. The study suggests that gamma secretase inhibitors, designed to prevent build-up of amyloid peptide, could potentially do so.
Researchers at the University of Michigan have developed a nanotech coating that can help brain implants operate longer and improve treatment for various diseases. The coating, made of three components, enables electrodes to interface more smoothly with the brain, reducing tissue damage and improving signal transmission.
Scientists have successfully replaced damaged brain tissue in rats with stem cells, filling cavities within 7 days. The new tissue interacts with the host brain and can be gradually replaced by natural processes.
Researchers at UT Houston are launching a Phase I study to treat acute stroke victims with their own stem cells, harvested from bone marrow. The goal is to assess the safety and potential benefits of this treatment in reducing disability.
Researchers discovered that small arteries at the brain's surface redirect and widen to maintain a constant blood supply after a stroke. The mesh-like vascular network enables the arteries to compensate for reduced blood cell velocity by increasing diameter, ensuring steady delivery of oxygen and nutrients.
Scientists found that exposure to blast overpressure from certain weapons, such as anti-tank guns and automatic rifles, causes mild brain injuries in pigs and rats. The study's results suggest that low frequencies are more effectively transmitted to the brain than high frequencies, leading to small haemorrhages and brain edema.
Scientists are using slices of living human brain tissue to identify new stroke therapies by blocking anoxic depolarization, a wave of death that engulfs and engorges brain cells. The study aims to find treatments that can delay or prevent the destructive electrical activity, potentially improving treatment options for strokes.
Two new studies link hormone therapy to reduced brain volume in critical memory areas, accelerating loss of cognitive function in postmenopausal women. Researchers found no correlation between hormone therapy and increased brain lesions, contradicting previous hypotheses.