Tag: "deficits" at biology news

Missing gene a potential risk factor for birth defects

... possible protein therapies to help counteract ATM deficits in embryos. "We want to see if the mechanisms that occur in mice will explain what occurs in humans or not," he says. "It's like a Las Vegas slot machine, in reverse. If all the bad lemons lined up if you had a lot of risk factors, such as no ATM ge...

Lack of specific brain protein causes marked deficits in learning, memory

...is protein known as RIM1 alpha causes profound deficits in the learning process. The discovery is a major step in understanding the molecular events that underlie learning and memory complex processes that can be impaired in human neuropsychiatric disorders such as Alzheimer's disease, mental retardation...

Specifying alcohol-related brain-damage among heavy social drinkers

...and motivation, memory, and motor control. "These deficits may have an affect on the heavy drinkers' ability to judge his/her drinking as adversely affecting his/her life," he added, "and can also interfere with the drinker's decision to seek treatment or reduce drinking, thus perpetuating drinking behavior....

Following complex motions

...ns, but, unless the injuries are very large, these deficits are temporary and disappear within weeks. The optical imaging technique that Casagrande's team used to study the organization of MT looks at the activity of different regions on the surface of the brain. It relies on the fact that active neurons con...

Delirium high in ICU patients, leads to death, morbidity

...elirium will likely have on the neuropsychological deficits of these patients. "These deficits are the types that prevent people from going back to work, helping their children with their homewor...

Ecosystem bounces back from hurricanes

...curred in association with severe dissolved oxygen deficits and high containment loadings (total inorganic nitrogen, total phosphorus, suspended solids, fecal bacteria). The high water volume of the second hurricane season (Hurricanes Dennis, Floyd, Irene in 1999) delivered generally comparable but more dilut...

Brain development and puberty may be key factors in learning disorders

...t could potentially unite many seemingly disparate deficits observed in adults with learning problems -- from evidence that their white brain matter is abnormally distributed to findings that they have difficulty distinguishing and manipulating language sounds," said Wright. The idea of brain delay also co...

Early dexamethasone exposure has long-term neurodevelopment, neuroendocrine effects

...pared to controls. However, no gross neurological deficits were observed in the dexamethasone-treated pups by day P20, suggesting that the pathways relevant to organization of reflexes and behavior assessed on the exam were developing normally by the time of weaning. Primitive reflexes appear and disappear i...

Researchers find that color perception is not innate, but acquired after birth

...at of normal animals. Furthermore, they had severe deficits in color constancy; their color vision was very much wavelength-dominated, such that they were unable to compensate for the changes in wavelength composition. These results indicate that early visual experience is indispensable for normal color perce...

New diagnostic technology helps justify earlier cataract surgery

...that the Snellen test does not document the visual deficits experienced by cataract patients," said Samuel Masket, MD, chair of the Eye Surgery Education Council. While some insurance companies will cover the cost of cataract surgery based on additional testing, there is no widely accepted test that can corro...

Alcohol-use and depression among pregnant and postpartum women

...o have more physical and psychological development deficits and have fewer resources directed towards their care. Thus, identifying women at risk for these conditions can benefit both the mother and child." Researchers examined data collected from an ongoing, longitudinal study of pregnancy outcomes, the Ma...

Mouse study shows NPAS3 and NPAS1 genes may be linked to psychosis

...d off in brain cells. "These mice display certain deficits that are potentially consistent with schizophrenia," said Dr. Steven McKnight, chairman of biochemistry at UT Southwestern and senior author of the study that will appear in an upcoming issue of the Proceedings of the National Academy of Sciences and...

Loss of the neuronal adhesion protein d-catenin leads to severe cognitive dysfunction

...ns of d-catenin display severe learning and memory deficits and thereby establish a causal link between deleti...so show that deletion of d-catenin produces severe deficits in short-lasting and long-lasting synaptic plasticity. In addition, they show that the synaptic comp...

Cardiac arrest may hinder ability to learn certain tasks

...ould be part of the physiological basis for memory deficits and other behavioral changes that patients often report following an attack." The study appears in a recent issue of the European Journal of Neuroscience. Mice were put into two groups one group underwent surgically induced heart attacks, whil...

Rare childhood genetic syndrome identified

...ay be useful for treating arrhythmia and cognitive deficits in individuals with Timothy syndrome, Keating says. Experiments also showed that the gene encoding the calcium channel was active not only in heart muscle cells, but in tissues of the gastrointestinal system, lungs, immune system, smooth muscle, test...

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