Tag: "brain" at biology news
'Might have been' key in evaluating behavior
...t might have been" or fictive learning affects the brain
and plays an important role in the choices individ...omic instincts. These blood flow changes in the brain
reflect alterations in the activity of nerve cells in the vicinity. In this case, they measured the ...
Brain, size and gender surprises in latest fossil tying humans, apes and monkeys
...sed to calculate the approximate dimensions of the brain
the cranium once encased. Based on previous foss... report, which displays the computer-reconstructed brain
as a false-color red mass within the grey skull case, suggests that the species "had a brain
Testosterone may help men with multiple sclerosis
...erone gel for men with MS reduced symptoms, slowed brain
degeneration and increased muscle mass in men with...rovement in cognitive performance and a slowing of brain
deterioration, said Voskuhl. During the first nine months of the study, the mens symptoms were simpl...
3M Manchester research center to develop vital new science
...tinuous processes. Discrete state changes in the brain
and cells are triggered by continuous changes in chemical concentrations. In biological systems there are generally many of these processes interacting in large complex science networks and these are hard to analyse using mathematical or computer sci...
Burroughs Wellcome Fund awards $14M to support physician-scientists
...rapeutic implications of genome instability during brain
tumor progression Arlene Dent, M.D., Ph.D. Case Western Reserve University Acquisition of immunity to blood stage Falciparum malaria in infants Mahalia Sabrina Desruisseaux, M.D. Albert Einstein College of Medicine of Yeshiva University Neuro...
UCLA researchers discover link between Parkinson's and narcolepsy
...isease patients have a loss of up to 60 percent of brain
cells containing the peptide hypocretin. In 2000, this same group of UCLA researchers first identified the cause of narcolepsy as a loss of hypocretin, thought to be important in regulating the sleep cycle. This latest research points to a common cau...
Study revises dynamin's role in nerve cell function
...re is a kind of biochemical repair manual' for the brain
cells," Dr. Ryan explains. "So, in the future, if we find out that a particular illness is caused by...
Toxoplasmosis infection trick revealed by scientists
...evere cases, toxoplasmosis can cause damage to the brain
and eyes, and even death Now researchers from London and Geneva have determined, for the first time, the atomic structure of a key protein which is released onto the surface of the parasite just before it invades host cells in the human body. They...
Brains reflect sex differences
...hed in the online open access journal BMC Biology, brain
structures have developed due to different pressur...es Nunn and Robert Barton examined data on primate brain
structures in relation to traits important for male competition, such as greater body mass and large...
Study finds regions of DNA that appear linked to autistic spectrum disorders
...stantino says. "That receptor is important in many brain
functions. But there are many genes in the regions we've identified, and our focus is on refining the signal so that we can reduce the number of candidate genes and then look more closely at how those genes might be contributing to this devastating d...
University of Arizona neurobiologist John Hildebrand elected to the National Academy of Sciences
...y. "We're studying the nuts and bolts by which the brain
does all that." His research group is figuring out how a moth's neural circuitry analyzes the airborne chemical soup that the moth uses to figure out where to feed, where to find a mate and where to lay eggs. The team's findings can be applied to o...
Genetic roots of bipolar disorder revealed by first genome-wide study of illness
... to get a foothold on the genetics of this complex brain
disorder," said NIMH Director Thomas R. Insel, MD. Most people occasionally have mood swings, but the shifts that occur in bipolar disorder, and the changes in behavior and energy level that accompany them, are sometimes disabling. Lithium and the...
Cancer cells 'reprogram' energy needs to grow and spread, study suggests
...s in many parts of the body, including the kidney, brain
and adrenal glands. Semenza and colleagues measured mitochondria content and oxygen use in kidney cancer cells that contain no VHL protein and in the same cells with VHL "engineered" back in. Restoring VHL caused the cells to make two to three time...
Newborn neurons like to hang with the 'in' crowd
...new kid on the block that tries to fit in, newborn brain
cells need to find their place within the existing...to the fray and preferentially reach out to mature brain
cells that are already well connected within the established circuitry, report scientists at the Sal...
The stem cells that weren't there
...k the fate of cells in many other tissues, such as brain
and muscle," said Kushner, adding that the technique may also be useful in following cells in cancer research. If these findings open up a new avenue of investigation into how insulin-producing cells develop, diabetes researchers may be a step clos...
Study shows response to financial loss parallels brain's processing of pain
...ion about financial loss through mechanisms in the brain
similar to those used for processing physical pain...) or ₤1 ($2). The researchers recorded their brain
activity over 200 trials as they showed subjects first the original image then an outcome screen ind...
Antidepressants stimulate new nerve cells in adult monkeys, may have implications for humans
...nduced new nerve cell growth in the hippocampus, a brain
area responsible for learning and memory. A simila..., and colleagues observed changes in the number of brain
cells in the dentate gyrus region of the hippocampus. The study is published in the May 2 issue of ...
Vaccine prevents prion disease in mice
...An oral vaccine can prevent mice from developing a brain
disease similar to mad cow disease, according to research that will be presented at the American Academy of Neurology's 59th Annual Meeting in Boston, April 28 May 5, 2007. Prion diseases, which include scrapie, mad cow disease, and chronic wasting ...
Scientists identify new strategy for preventing acute and chronic brain disease
...ursue a complementary strategy and try to make the brain
more resistant to A-Beta without having to change ...u gene were eliminated. Tau is made normally by brain
cells and regulates the stability of their internal skeleton. In AD, tau is altered in a way that ma...
Role of noise in neurons
...hey show that noise effects in ion channels in the brain
are much larger than previously assumed meaning t...promised. Neurons in the cerebral cortex of the brain
can have a wiring density of up to 4km per mm3 by using incredibly thin axons as wires, with an aver...
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