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Last Updated: Nov 1, 2009 - 11:48:48 PM |
Latest Research
Life and death in the living brain
Like clockwork, brain regions in many songbird species expand and shrink seasonally in response to hormones. Now, for the first time, University of Washington neurobiologists have interrupted this natural annual remodeling of the brain and have shown that there is a direct link between the death of old neurons and their replacement by newly born ones in a living vertebrate.
Aug 10, 2009 - 3:59:36 AM
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Latest Research
UnMASCing diseases of the brain
Scientists at the Wellcome Trust Sanger Institute have discovered a set of brain proteins responsible for some of the most common and devastating brain diseases. The proteins underlie epilepsy, depression, schizophrenia, bipolar disease, mental retardation and neurodegenerative diseases including Alzheimer's and Huntington's diseases.
May 19, 2009 - 3:59:36 AM
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Latest Research
New therapy based on magnetic stimulation shows promise for non-drug treatment for migraine
A new UCSF study examining the mechanism of a novel therapy that uses magnetic pulses to treat chronic migraine sufferers showed the treatment to be a promising alternative to medication.
Apr 29, 2009 - 3:59:36 AM
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Latest Research
USC partners with French drug discovery company on computer modeling effort
A single neurotransmitter, the amino acid L-glutamate, regulates countless biological systems in animals ranging from worms and insects to human beings.
Apr 24, 2009 - 3:59:36 AM
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Latest Research
Standardized test battery to aid those with Down syndrome
Researchers at The University of Arizona are developing a set of standardized tests that could improve the lives of people with Down syndrome.
Jan 12, 2009 - 4:59:36 AM
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Latest Research
Mayo Clinic finds it generally safe to withdraw anti-seizure medication in children with epilepsy
ROCHESTER, Minn. - A new Mayo Clinic study found that it is generally safe to withdraw anti-seizure medications in children with epilepsy who have achieved seizure-freedom while on the medication. Researchers found that these children were not at high risk of subsequently developing intractable epilepsy. The study will be presented on Sunday, Dec. 7, at the American Epilepsy Society's annual meeting in Seattle.
Dec 7, 2008 - 4:59:37 AM
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Latest Research
Japanese encephalitis virus causes 'double trouble' to brain
Japanese encephalitis (JE), commonly known as brain fever, is one of the prevalent mosquito-borne encephalitis in India and entire South East (SE) Asia. Besides resulting in thousand fatalities each year, JE virus (JEV) infection causes prominent neurological sequelae in approximately one-third of the survivors. Even those patients in the good recovery group commonly encounter psychiatric problems, which include mental retardation, learning disabilities, speech and movement disorders and behavioural abnormalities.
Jul 7, 2008 - 3:59:37 AM
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Latest Research
Study identifies brain pathway that shuts down seizures
Researchers at the University of Iowa and the Veterans Affairs Iowa City Health Care System have uncovered a brain pathway that shuts down seizures.
Jun 8, 2008 - 3:59:37 AM
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Latest Research
Repeated methamphetamine use causes long-term adaptations in brains of mice, researchers find
Repeatedly stimulating the mouse brain with methamphetamine depresses important areas of the brain, and those changes can only be undone by re-introducing the drug, according to research at the University of Washington and other institutions. The study, which appears in the April 10 issue of the journal Neuron, provides one of the most in-depth views of the mechanisms of methamphetamine addiction, and suggests that withdrawal from the drug may not undo the changes the stimulant can cause in the brain.
Apr 9, 2008 - 3:59:37 AM
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Latest Research
Scientists find a key culprit in stroke brain cell damage
Researchers have identified a key player in the killing of brain cells after a stroke or a seizure. The protein asparagine endopeptidase (AEP) unleashes enzymes that break down brain cells' DNA, scientists at Emory University School of Medicine have found.
Mar 27, 2008 - 3:59:37 AM
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Latest Research
Cocaine's effects on brain metabolism may contribute to abuse
UPTON, NY - Many studies on cocaine addiction - and attempts to block its addictiveness - have focused on dopamine transporters, proteins that reabsorb the brain's reward chemical once its signal is sent. Since cocaine blocks dopamine transporters from doing their recycling job, it leaves the feel-good chemical around to keep sending the pleasure signal. Now a new study conducted at the U.S. Department of Energy's Brookhaven National Laboratory suggests that cocaine's effects go beyond the dopamine system. In the study, cocaine had significant effects on brain metabolism, even in mice that lack the gene for dopamine transporters.
Feb 18, 2008 - 4:59:37 AM
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Latest Research
New devices to boost nematode research on neurons and drugs
A pair of new thin, transparent devices, constructed with soft lithography, should boost research in which nematodes are studied to explore brain-behavior connections and to screen new pharmaceuticals for potential treatment of parasitic infections in humans, report 10 scientists at three institutions.
Feb 5, 2008 - 4:59:37 AM
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Latest Research
Gene protects adults abused as children from depression
Some forms of a gene that controls the body's response to stress hormones appear to protect adults who were abused in childhood from depression, psychiatrists have found.
Feb 4, 2008 - 4:59:37 AM
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Latest Research
Naked mole-rats bear chili pepper heat
Pity the tiny naked mole-rat. The buck-toothed, sausage-like rodent lives by the hundreds in packed, oxygen-starved burrows some six feet under ground. It is even cold-blooded -- which, as far as we know, is unique among mammals.
Jan 28, 2008 - 4:59:37 AM
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Latest Research
Weill Cornell team discovers how brain's own tPA helps regulate blood flow to neurons
NEW YORK (Jan. 17, 2008) -- The human brain contains its own store of a powerful enzyme (and stroke drug) called tissue plasminogen activator (tPA), which appears to be a key regulator of blood flow to brain cells, a team at the Weill Cornell Medical College in New York City reports.
Jan 17, 2008 - 4:59:37 AM
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Latest Research
Overweight people may not know when they've had enough
UPTON, NY - Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have found new clues to why some people overeat and gain weight while others don't. Examining how the human brain responds to satiety messages delivered when the stomach is in various stages of fullness, the scientists have identified brain circuits that motivate the desire to overeat. Treatments that target these circuits may prove useful in controlling chronic overeating, according to the authors. The study is published online and will appear in the February 15, 2008 issue of NeuroImage.
Jan 9, 2008 - 4:59:37 AM
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Latest Research
Cognitive, genetic clues identified in imaging study of alcohol addiction
People with clinical addictions know first-hand the ravages the disease can take on almost every aspect of their lives. So why do they continue addictive behaviors, even after a period of peaceable abstinence
Dec 25, 2007 - 4:59:37 AM
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Latest Research
Biocapture surfaces produced for study of brain chemistry
A research team at Penn State has developed a novel method for attaching small molecules, such as neurotransmitters, to surfaces, which then are used to capture large biomolecules. By varying the identity and spacing of the tethered molecules, researchers can make the technique applicable to a wide range of bait molecules including drugs, chemical warfare agents, and environmental pollutants. Ultimately, the researchers also hope to identify synthetic biomolecules that recognize neurotransmitters so that they can fabricate extremely small biosensors to study neurotransmission in the living brain.
Dec 13, 2007 - 4:59:37 AM
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Latest Research
Dr. Nicholas Schiff receives research award for Innovation in Neuroscience
NEW YORK (Dec. 13, 2007) -- A leading authority on neurological disorders of consciousness, Dr. Nicholas Schiff of NewYork-Presbyterian Hospital/Weill Cornell Medical Center in New York City has received a prestigious Research Award for Innovation in Neuroscience from the Society for Neuroscience, the world's largest organization of physicians and scientists who study the brain and nervous system.
Dec 13, 2007 - 4:59:37 AM
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Latest Research
Breakthrough technology observes synapse in real time, supporting theory of vesicular recycling
NEW YORK (Dec. 13, 2007) -- For the first time, scientists at Weill Cornell Medical College in New York City have observed in real time a cellular mechanism that's crucial to how brain cells communicate.
Dec 13, 2007 - 4:59:37 AM
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Latest Research
In fruit flies, homosexuality is biological but not hard-wired
While the biological basis for homosexuality remains a mystery, a team of neurobiologists reports they may have closed in on an answer -- by a nose.
Dec 9, 2007 - 4:59:37 AM
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Latest Research
Effects of social isolation traced to brain hormone
The anxiety and aggression that result from social isolation have been traced to altered levels of an enzyme that controls production of a brain hormone.
Nov 14, 2007 - 4:59:37 AM
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Latest Research
Hearing changes how we perceive gender
EVANSTON, Ill. --- Think about the confused feelings that occur when you meet someone whose tone of voice doesn’t seem to quite fit with his or her gender.
Oct 24, 2007 - 3:59:37 AM
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Latest Research
Stress: Brain yields clues about why some succumb while others prevail
Results of a new study may one day help scientists learn how to enhance a naturally occurring mechanism in the brain that promotes resilience to psychological stress. Researchers funded by the National Institutes of Health’s National Institute of Mental Health (NIMH) found that, in a mouse model, the ability to adapt to stress is driven by a distinctly different molecular mechanism than is the tendency to be overwhelmed by stress. The researchers mapped out the mechanisms – components of which also are present in the human brain – that govern both kinds of responses.
Oct 18, 2007 - 3:59:37 AM
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Latest Research
Genes may make some people more motivated to eat, perhaps overeat
WASHINGTON — Science has found one likely contributor to the way that some folks eat to live and others live to eat. Researchers at the University at Buffalo, The State University of New York, have found that people with genetically lower dopamine, a neurotransmitter that helps make behaviors and substances more rewarding, find food to be more reinforcing than people without that genotype. In short, they are more motivated to eat and they eat more.
Oct 14, 2007 - 3:59:37 AM
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Latest Research
Scientists identify brain circuits used in sensation of touch
The ability to tactually recognize fine spatial details, such as the raised dots used in braille, is especially important to those who are blind. With that in mind, a team of researchers has identified the neural circuitry that facilitates spatial discrimination through touch. Understanding this circuitry may lead to the creation of sensory-substitution devices, such as tactile maps for the visually impaired.
Oct 10, 2007 - 3:59:37 AM
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Latest Research
Evil genes made me do it
While there have been numerous medical studies investigating the physiological and biochemical basis for behavioral disorders such as antisocial personality disorder and borderline personality disorder, there have been virtually no comprehensive studies aimed at providing a physiological explanation of malignant narcissism—a term that characterizes individuals who exhibit malevolent behavior but are still able to function effectively in society.
Oct 8, 2007 - 3:59:37 AM
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Latest Research
USC biomedical team to participate in $6 million low vision project
An interdisciplinary team of biomedical researchers from the USC Viterbi School, the College and the Keck School of Medicine of USC has received a $6-million Bioengineering Research Partnership grant from the National Institutes of Health (NIH) to begin designing visual aids for millions of older adults who suffer from significant vision loss.
Oct 5, 2007 - 3:59:37 AM
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Latest Research
Vanderbilt nets brain gene research center
Neuroscientists at Vanderbilt University are stepping into the national limelight with the establishment of a Silvio O. Conte Center for Neuroscience Research.
Oct 2, 2007 - 3:59:37 AM
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Latest Research
Chemical compound found in tree bark stimulates growth, survival of brain cells
Researchers have identified a compound in tree bark that mimics the chemical reactions of a naturally occurring molecule in the brain responsible for stimulating neuronal cell signaling. Neuronal cell signaling plays a crucial role in the growth, plasticity and survival of brain cells.
Oct 1, 2007 - 3:59:37 AM
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Latest Research
Loss of gene leads to protein splicing and buildup of toxic proteins in neurons
JACKSONVILLE, Fla. -- Researchers at Mayo Clinic in Jacksonville have discovered how loss of a gene can lead to accumulation of toxic proteins in the brain, resulting in a common dementia, and they say this mechanism may be important in a number of age-related neurological disorders.
Sep 27, 2007 - 3:59:37 AM
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Latest Research
Genes linked to suicidal thinking during antidepressant treatment
Specific variations in two genes are linked to suicidal thinking that sometimes occurs in people taking the most commonly prescribed class of antidepressants, according to a large study led by scientists at the National Institutes of Health’s (NIH) National Institute of Mental Health (NIMH). Depending on the particular mix inherited, these versions increased the likelihood of such thoughts from 2- to15-fold, the study found. About 1 percent of adult patients were deemed to be at high genetic risk, 41 percent at elevated risk and 58 percent at lower risk.
Sep 27, 2007 - 3:59:37 AM
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Latest Research
Scientists identify fundamental brain defect, probable drug target in fragile X syndrome
Scientists have discovered how the gene mutation responsible for fragile X syndrome--the most common inherited form of mental retardation--alters the way brain cells communicate. In neurons cultured from laboratory rats, the scientists also were able to reverse the effects of the mutation using a drug targeted to the specific site in an upstream pathway of the defect. The finding could lead to the development of human therapies for this previously untreatable condition.
Sep 17, 2007 - 3:59:37 AM
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Latest Research
Antidepressant shows early promise in treating agitation and psychotic symptoms of dementia
Toronto, ONT – Researchers have found surprising evidence that an antidepressant (citalopram) may perform as well as a commonly-prescribed antipsychotic (risperidone) in the alleviation of severe agitation and psychotic symptoms of dementia. Researchers also found that the antidepressant was associated with “significantly lower” adverse side effects.
Sep 10, 2007 - 3:59:37 AM
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Latest Research
Implantable device designed to detect, stop seizures under study at MCG
A small device implanted in the skull that detects oncoming seizures, then delivers a brief electrical stimulus to the brain to stop them is under study at the Medical College of Georgia.
Sep 10, 2007 - 3:59:37 AM
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Latest Research
Embryonic stem cell strategy advanced with UCSF finding
UCSF scientists are reporting what they say is a significant improvement in the technique for genetically reprogramming mouse cells to their embryonic state, a process that transforms the cells, in essence, into embryonic stem cells.
Sep 10, 2007 - 3:59:37 AM
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Latest Research
'Holy Grail' of hearing: True identity of pivotal hearing structure is revealed
Our ability to hear is made possible by way of a Rube Goldberg-style process in which sound vibrations entering the ear shake and jostle a successive chain of structures until, lo and behold, they are converted into electrical signals that can be interpreted by the brain. Exactly how the electrical signal is generated has been the subject of ongoing research interest.
Sep 5, 2007 - 3:59:37 AM
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Latest Research
Low level of neuronal receptor linked to mild cognitive impairment and Alzheimer's disease
Results of a new study indicate a strong link between the loss of the neuronal receptor LR11and onset of mild cognitive impairment (MCI), often a harbinger of Alzheimer's disease.
Sep 4, 2007 - 3:59:37 AM
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Latest Research
Neural stem cell study reveals mechanism that may play role in cancer
In the dynamic world of the developing brain, neural stem cells give rise to neurons deep within the brain’s fluid-filled ventricles. These newborn neurons then migrate along the stem cell fibers up to the neocortex, the seat of higher cognitive functions. Now, scientists have discovered a key mechanism of this migration – one that may also play an important role in other developmental processes and diseases, including cancer.
Sep 4, 2007 - 3:59:37 AM
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Latest Research
Novel 3-D cell culture model shows selective tumour uptake of nanoparticles
A nanoparticle drug delivery system designed for brain tumour therapy has shown promising tumour cell selectivity in a novel cell culture model devised by scientists at The University of Nottingham. The project, conducted jointly by the Schools of Pharmacy, Biomedical Sciences and Human Development, will be featured in the September issue of the Experimental Biology and Medicine.
Aug 31, 2007 - 3:59:37 AM
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Latest Research
Researchers find new taste in fruit flies: carbonated water
That fruit fly hovering over your kitchen counter may be attracted to more than the bananas that are going brown; it may also want a sip of your carbonated water. Fruit flies detect and are attracted to the taste of carbon dioxide dissolved in water, such as water found on rotting fruits containing yeast, concludes a study appearing in the August 30 issue of the journal Nature. Scientists at the University of California, Berkeley, who conducted the study, suggest that the ability to taste carbon dioxide may help a fruit fly scout for food that is nutritious over that which is too ripe and potentially toxic. The research is partly funded by the National Institute on Deafness and Other Communication Disorders (NIDCD), one of the National Institutes of Health.
Aug 29, 2007 - 3:59:37 AM
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Latest Research
Emory scientists use NIH grant to develop biomarkers for ALS tracking and prevention
The National Institutes of Health has awarded Emory University researchers a $275,000 grant aimed at developing protein biomarkers to diagnose, monitor and prevent amyotrophic lateral sclerosis (ALS).
Aug 16, 2007 - 3:59:37 AM
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Latest Research
Scientists link fragile X tremor/ataxia syndrome to binding protein in RNA
Scientists have discovered a key protein in the toxic brain pathway that leads to fragile X tremor/ataxia syndrome (FXTAS), an inherited neurodegenerative disorder. The finding, in a Drosophila (fly) model of FXTAS, could help unravel the complex mechanisms of FXTAS and lead scientists to develop therapies to target the protein. The research will be published in the Aug. 16 issue of the journal Neuron.
Aug 15, 2007 - 3:59:37 AM
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Latest Research
Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinson's symptoms
New evidence indicates that the loss of two types of brain cells--not just one as previously thought--may trigger the onset of symptoms associated with Parkinson's disease.
Aug 13, 2007 - 3:59:37 AM
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Latest Research
UCLA scientists produce functioning neurons from human embryonic stem cells
Scientists with the Institute of Stem Cell Biology and Medicine at UCLA were able to produce from human embryonic stem cells a highly pure, large quantity of functioning neurons that will allow them to create models of and study diseases such as AlzheimerÂ’s, ParkinsonÂ’s, prefrontal dementia and schizophrenia.
Aug 7, 2007 - 3:59:37 AM
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Latest Research
Researchers link metal ions to neurodegenerative disease
A multi-institutional team of researchers led by Emory University has defined for the first time how metal ions bind to amyloid fibrils in the brain in a way that appears toxic to neurons. Amyloid fibrils are linked to the development of neurodegenerative diseases such as Alzheimer's, Parkinson's and Creutzfeldt-Jakob. Although metal ions, most notably copper, can bind to amyloid in several specific ways, the researchers found that only one way appears toxic.
Aug 6, 2007 - 3:59:37 AM
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Latest Research
Study identifies source of fever
BOSTON – With the finding that fever is produced by the action of a hormone on a specific site in the brain, scientists have answered a key question as to how this adaptive function helps to protect the body during bacterial infection and other types of illness.
Aug 5, 2007 - 3:59:37 AM
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Latest Research
Stem cell therapy rescues motor neurons in ALS model
MADISON -- In a study that demonstrates the promise of cell-based therapies for diseases that have proved intractable to modern medicine, a team of scientists from the University of Wisconsin-Madison has shown it is possible to rescue the dying neurons characteristic of amyotrophic lateral sclerosis (ALS), a fatal neuromuscular disorder also known as Lou Gehrig's disease.
Jul 31, 2007 - 3:59:37 AM
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Latest Research
Geisinger scientist seeks cure for Lou Gehrig's disease, creating device to find treatment
DANVILLE- A small tropical fish, the curiosity of a Geisinger research scientist and some college students have created the perfect storm of sorts in an attempt to find a cure for one of the worldÂ’s most devastating neurological diseases.
Jul 30, 2007 - 3:59:37 AM
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Latest Research
Research shows NPD1 protects a key component of vision
Two papers to be published in the Early Edition online of the Proceedings of the National Academy of Sciences (PNAS) the week of July 30-August 3, 2007 report findings that demonstrate that neuroprotectin D1 (NPD1) protects against damage to retinal pigment epithelial (RPE) cells and identifies an important trigger for its production and novel molecular mechanisms that support vision. The research was conducted at LSU Health Sciences Center New Orleans and the papers are entitled Neurotrophins enhance retinal pigment epithelial cell survival through neuroprotectin D1 signaling and Photoreceptor outer segment phagocytosis attenuates oxidative stress-induced apoptosis with concomitant neuroprotectin D1 synthesis. RPE cells are responsible for the renewal of the tips of photoreceptor cells (rods and cones) crucial to vision.
Jul 30, 2007 - 3:59:37 AM
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| Health |
Musculoskeletal problems ail computer workers
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Eating less may help you live longer
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IOM report on national vaccine plan
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You may damage knees if you're an exercise freak
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American adults receiving flu vaccine at about the same rate as in 2008, study finds
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Widowed people have higher mortality
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Anxious women more likely to have smaller babies
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UIC receives $1 million grant to study 'fat taxes,' diet, obesity
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Progress made on group B streptococcus vaccine
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Exercise addiction could prove fatal
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| | Healthcare |
Biotech industry hails tax sops in Indian budget
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Junior doctors in Madhya Pradesh call off strike
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25000 NRI Doctors Could Return to India from UK
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AIIMS to guide 40 medical colleges on drug reaction
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15 percent of Indian women below 50 are obese: Azad
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Mexico expects swine flu infections to peak at New Year
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Wipro unveils new application for remote healthcare
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Azad hikes funds for cancer control, treatment of poor
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Kerala medical colleges doctors suspend agitation
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Delhi records 280 cases of dengue
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| | Latest Research |
Belatacept may preserve renal function better than calcineurin inhibitors in kidney transplantation
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K-State professor finds link between low oxygen levels in body and cancer-aiding protein
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HHMI's Gilliam Fellowships aim to increase diversity in the sciences
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Saving lives one breath at a time
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Improvements needed in genomic test result discussions
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Occupational sunlight exposure and kidney cancer risk in men
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The life and death of online communities
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Deep sedimentation of acantharian cysts -- a reproductive strategy?
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Adele Boskey 2010 recipient of ORS/AOA award for lifetime contributions to orthopedics
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National Jewish Health receives grant to learn how families cope with food allergy
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| | Medical News |
Azad invites NRI investment in pharmaceuticals, medical education
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25000 NRI Doctors Could Return to India from UK
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Eat pistachio to lower blood sugar
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Stricter resident doctor duty hour required to prevent medical errors
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Chandigarh adult drinks 11 bottles a month
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Swine flu vaccine nearing development: Official
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India to be diabetes' world capital by 2025: Expert
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US may allow 5,000 more Indian doctors for residency training
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Scissors taken out from man's stomach after two years
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India's swine flu toll reaches 967, over 26,000 infected
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| | Special Topics |
'Primodial Soup' theory for origin of life rejected in paper
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Human species could have killed Neanderthal man
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History, geography also seem to shape our genome
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3,000 Kerala medical students to attend inter-college meet
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Tamil Nadu seeks to control deemed universities
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Spiders which eat together, stay together and multiply
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Anna Hazare - the keeper of the earth and human conscience
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Indian American scientist wins top IMO prize
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Artificial human sperm could make men redundant: experts
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Will autopsy on Benazir's body become necessary?
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