Sentences with phrase «studies of brain tissue»

Specifically, intensive postmortem neurological studies of their brain tissues reveal a relatively low density of acetylcholine (a neurotransmitter) nerve sites, which, at normal densities, function in critical ways to help re-initiate breathing following a sleep - related apnea or extended breathing pauses.

Not exact matches

More work has to be done on humans as many of the results showed up in mice samples, however in studying the human brains of women who had AD scientists found significantly less male fetal tissue in their brains as in the same of women who did not have AD.

It's to put the study of the mind back in the study of the brain, says Solms: «What neuropsychoanalysis is all about is this: How does the actual stuff of being a person relate to the tissue and physiology and anatomy and chemistry of the brain?»

Kristian Doyle, assistant professor of immunobiology and neurology at the University of Arizona College of Medicine in Tucson, uses biomarkers to study how the immune system deals with dead brain tissue after a stroke.

As another crucial part of the new study on Internet addiction, the research team zeroed in on tissue deep in the brain called white matter, which links together its various regions.

Focusing on the neural pathway from the brain's prefrontal cortex to the amygdala, they combined optogenetics — a technique that uses light to control the activity of neurons in living tissue — with behavioral testing, a methodology that allows researchers to study functional connections between different regions of the brain.

In the new study, researchers mined databases of genomic data from humans and chimpanzees, to find enhancers expressed primarily in the brain tissue and early in development.

A recent study published in Annals of Neurology reports that healthy human tissue grafted to the brains of patients with Huntington's disease in the hopes of treating the neurological disorder also developed signs of the illness, several years after the graft.

Among the 42 Zika - infected women in the study, 12 were carrying fetuses with severe abnormalities, including absence or withering of brain structures, tissue death, restricted growth and, in one case, microcephaly.

Twenty people in the study experienced meningitis (inflammation of the tissue that surrounds the brain and spinal cord), either while they were being treated for Ebola or after they left the treatment unit.

Now, researchers in The Netherlands have coupled machine learning methods with a special MRI technique that measures the perfusion, or tissue absorption rate, of blood throughout the brain to detect early forms of dementia, such as mild cognitive impairment (MCI), according to a new study published online in the journal Radiology.

The findings tallied with another study which involved screening post-mortem brain tissue from people who had had some form of psychosis.

Recent studies suggest that the total loss in brain volume due to atrophy — a wasting away of tissue caused by cell degeneration — between our teen years and old age is 15 percent or more, which means that by the time we're in our seventies, our brains have shrunk to the size they were when we were between 2 and 3 years old.

Dr Vera Weisbecker of UQ's School of Biological Sciences said the study represented the first dataset comparing brain growth in different mammals, gathered through a novel method of non-invasive micro-CT (computed tomography) scanning which allowed the fast data acquisition of soft tissue growth in tiny mammals.

Mammalian brain growth is studied in this paper which shows that a widely accepted hypothesis of how the mammalian brain proportions grow and evolve does not work, using a novel method of micro-CT scan that allows the first fast data acquisition of soft tissue growth in tiny mammals.

Researchers also studied the brain tissue of the infected mice under a microscope and found that the memory problems tracked with changes in nerve cells.

«Zebrafish brain repair following concussion: New model enables study of animal's remarkable ability to regenerate injured brain tissue.»

In this study, the researchers from Imperial's Department of Surgery and Cancer and the Royal British Legion Centre for Blast Injury Studies, applied xenon to slices of mouse brain tissue after exposing them to blast shockwaves that emulated those produced by improvised explosive devices (IEDs).

Again, McAninch and colleagues also continued to collaborate with the University of Miami Brain Bank to obtain and study brain tissue from young, healthy African American brain doBrain Bank to obtain and study brain tissue from young, healthy African American brain dobrain tissue from young, healthy African American brain dobrain donors.

Powers is planning expand his study size and is partnering with another CCTS - funded stroke investigator who developed an animal model of ischemia in order to analyze micro-RNA released in brain tissues at the precise area around a blocked blood vessel.

Researchers most commonly study the effect of antidepressants using a technique known as microdialysis, in which they insert a probe into the brain to take tiny chemical samples from the tissue.

The cerebral cortex is the outermost layer of neural tissue in the brain and is one of the most extensively studied brain structures in the field of neuroscience.

A weakness of the study is that it does not include any measured observations of the brain tissue, which is often the case in studies of Alzheimer's disease.

In this study, the researchers looked at the organization of newborn brain tissue using Diffusion Tensor Imaging (DTI), a magnetic resonance imaging (MRI) technique.

The study shows that one out of three stroke patients who present with at - risk brain tissue on their scans improve and some may walk out of the hospital saved from what would otherwise have been a devastating brain injury.»

A September 2002 follow - up study found no evidence for widespread transdifferentiation of blood - forming stem cells in brain, liver, kidney, gut and other tissues.

«Only about half of the patients we screened with the brain - imaging software had enough salvageable brain tissue to enter the study.

In the 8 participants for whom an adequate number of imaging studies were completed, whole brain volume — the overall amount of brain tissue — decreased significantly throughout the study period.

Historically, animal models — from fruit flies to mice — have been the go - to technique to study the biological consequences of aging, especially in tissues that can't be easily sampled from living humans, like the brain.

Doing this type of study on cells in brain tissue has been challenging because the cells are densely packed and intimately intertwined.

Importantly, individual classes of inhibitory neurons are quite sparse in the brain, so any unique features of those cells would likely have been lost in earlier studies that looked at the tissue as a whole.

Working with the brains of six normal children and seven autistic children ages 2 to 16, most of whom died of drowning, Courchesne has studied neurons under the microscope and even counted the number of neural cells in different tissue samples.

A recent generation of studies of postmortem brain tissue from people with schizophrenia, particularly from the laboratory of Professor David Lewis and his colleagues at the University of Pittsburgh, have shed light on schizophrenia - related abnormalities in the interplay of the main excitatory neurons, pyramidal neurons, and a specific class of inhibitory nerve cells, called chandelier cells, in the prefrontal cortex.

The study of human astrocytes has faced issues related to access (samples of living tissue must be obtained from brain cancer or epilepsy surgeries or fetal tissue) and purification (breaking apart astrocytes away from other cells often killed them and many experiments ended in failure).

The 3D tissue structures will let researchers study the early stages of human brain development in unprecedented detail.

«It's critically important to be able to look at questions of brain development in real human tissue when you're trying to study human disease.

But metal electrodes can quickly damage natural brain tissue, making it impossible to study the transfer of signals over extended periods.

In a study published in the Journal of Clinical Investigation, researchers looked at how immune cells reached the myelin, focusing on the barrier between brain tissue and the rest of the body.

The researchers conducted additional studies of the virus using brain tissue from epilepsy patients and showed that the virus does not infect noncancerous brain cells.

Here at the Harvard Brain Tissue Resource Center, donated specimens are sliced up, preserved, stored, and eventually parceled out to neuroscientists worldwide who study them for clues to disease, cognition, and the mysterious cellular underpinnings of psychology.

Thousands of studies have suggested that stimulating brain tissue like this can help treat a range of conditions including tinnitus, depression and stroke.

«We are talking about fast - growing tumors that invade normal brain tissue and are very difficult to treat,» said Orin Bloch, MD, a neurosurgeon at Northwestern Memorial Hospital and lead author of the study.

If the compound identified in this study successfully reduces tissue death and improves recovery in further experiments, it could lead to new approaches for preserving brain cells after an ischemic stroke,» said Francesca Bosetti, Ph.D., Pharm.D., program director at the NIH's National Institute of Neurological Disorders and Stroke (NINDS).

Interestingly, many of the genes identified in this study have been shown to have lower gene activity at the molecular level in autistic post mortem brain tissue samples.

Studies have found beta - amyloid in tissue following traumatic brain injury and as evidence of optic nerve damage in shaken - baby syndrome.

Joanna Fowler has made significant contributions to brain research and the understanding of diseases such as addiction, which she studies using positron emission tomography (PET), an imaging technique that measures the concentration and movement of a positron - emitting radioisotope in living tissue.

Changiz Geula, a professor of neuroscience at Northwestern University, has been studying brain tissue collected from people who died at age 90 or older.

The study published in the Journal of Alzheimer's Disease focused on a type of brain tissue called white matter, which is composed of millions of bundles of nerve fibers used by neurons to communicate across the brain.

In their comprehensive study, which involved a search of gene activity maps as well as testing of human brain tissue, the researchers identified more than 100 enhancers which were much more active in the brain than in other tissues.

For the moment, Blue Brain scientists study rodent brain tissue and characterize different types of neurons to excruciating detail, recording their electrical properties, shapes, sizes, and how they conBrain scientists study rodent brain tissue and characterize different types of neurons to excruciating detail, recording their electrical properties, shapes, sizes, and how they conbrain tissue and characterize different types of neurons to excruciating detail, recording their electrical properties, shapes, sizes, and how they connect.