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Tag: "memory" at biology news

Drug That 'Tags' Decision-making Areas Of The Brain May Aid

...cortex, areas that are responsible for learningand memory as well as reasoning, planning, problem solving and emotion.According to Mukherjee, patients with Alzheimer’s disease have beenknown to have a 30 percent to 50 percent loss of these receptors “Ifthere is a gradual loss of these receptors over time, N...

Researchers Uncover Key Step In Manufacture of Memory Protein

...e current study may provide insight into long-term memory deficits. She explained that other researchers have learned that some human beings lack normal CPE due to mutations in the CPE gene. Future research may determine if the CPE mutation affects these individuals?long-term memory. ...

Nanogen Issued Patent for Electronic Microarray With Memory

...erforming molecular diagnostic tests. Using local memory circuits provides for precise control of the currents delivered to individual electrodes on the array, while minimizing the utilization of "off-chip" circuitry and overall system costs. The electric potential is controlled at each of the NanoChip's 4...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...hat treat microbial infections,appears to create a memory in the immune system that produces a lastingprotec...lercells ¯ and which creates a long-lasting immune memory primed to attackbreast cancer cells that are studded with HER2/neu proteins, he says.In the experime...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...hat treat microbial infections,appears to create a memory in the immune system that produces a lastingprotec...lercells ¯ and which creates a long-lasting immune memory primed to attackbreast cancer cells that are studded with HER2/neu proteins, he says.In the experime...

Alcohol's effects on gene expression in the central nervous system

...ptic connections that resemble those that occur in memory and learning. "Learning and memory require enhanced synaptic function between neurons," explained McBride. "Enhanced synaptic function ...

Deficiency of growth hormone and IGF-1 reduces cancer and kidney disease, but creates other problems

...so may lead to cartilage degeneration and impaired memory and learning ability, according to research at Wak...es. The researchers used several tests to measure memory and learning. They found that growth-hormone-deficient rats had impaired learning ability compared t...

VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain

... to be an important mechanism underlying long-term memory and learning, including that which occurs with addiction to alcohol or other drugs, Miles said. In the study, approximately 400 genes were identified as alcohol regulated in at least one brain region of either mouse strain. According to Miles, most ...

How an AIDS-Related Cancer Unleashes Inflammation

...and McCormick dedicated the Science article to the memory of Robert Sadler, a former HHMI associate in Ganem's lab who discovered kaposin B. Sadler was killed in 1999 by stray bullets fired into a San Francisco nightclub. According to Ganem, early studies of Kaposi's sarcoma (KS) indicated that the abnorma...

Rats infected as newborns grew up vulnerable to memory problems during an immune challenge

...nderstanding how infection in newborns can disrupt memory in immune-challenged adults may help scientists to...ew up, Bilbo and her colleagues tested the adults' memory about 60 days after birth. To test memory, each rat was allowed to explore a novel experimental cham...

Supercomputer Dedicated To Bioengineering, Computational Biology Installed

...r its speed, but also because its 428 gigabytes of memory capacity and 20 terabytes of storage will enable r...tational speed with some of our models -- some are memory limited," said McCulloch. "For example, our models of the propogation of an electrical impulse thoro...

Chemists identify immune system mechanism for methamphetamine binges

...associated with serious health problems, including memory loss, aggression, psychotic behavior, and potential heart and brain damage. The Skaggs Institute for Chemical Biology (at Scripps) and the National Institute on Drug Abuse provided funding for this study. In addition to Janda and Dickerson, other st...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...It's a good bet that the very earliest stage of AD memory loss begins when ADDLs attack key synapses in the brain. We predicted some of these ADDLs would leak into the cerebrospinal fluid, but until now we couldn't detect them. Thanks to the extraordinary sensitivity of the BCA it's been possible to validat...

Birds brains reveal source of songs

...ned, pathway compares that variation to the bird's memory of the father's song. Gradually, the bird gets it right more often and eventually sings only the songs of its elders. ...

Revolutionary nanotechnology illuminates brain cells at work

...ns. It is involved in everything from learning and memory to mood and perception. Too much glutamate is believed to contribute to conditions such as Alzheimer's and Parkinson's disease. The research is published in the May 30-June 3 on-line early edition of the Proceedings of the National Academy of Science...

Mystery Blood Vessel Disorder Implicated In 'Mini' Strokes

...tiple lacunar strokes can also cause cognitive and memory deficits that resemble Alzheimer's disease. According to the authors, physicians who encounter patients with small vessel disease should look for evidence of dolichoectasia. "If dolichoectasia is present, you should look for an associated abdominal ...

Brain Scans Reveal How Gene May Boost Schizophrenia Risk

...ation, learning in response to reward, and working memory ?functions impaired in schizophrenia, which is tho...verall brain activity while they performed working memory tasks. The second scan used a dopamine tracer to reveal the synthesis of the neurotransmitter in the...

The evolutionary triumph of flower power

...otional reactions, mood, social behaviors and even memory in both men and women. The results of these three ...in a retirement community ?an environment in which memory is often a personal concern. All 113 got flowers, some at the beginning of the study with a follow-u...

To sea or not to sea: When it comes to salmon sex, size sometimes doesn't matter

... stream but then go elsewhere? Do they have poorer memory or sensory capabilities and so stray out of ignorance? Or are there other factors involved? "These strays are not merely an aberration to be ignored. Much of the present range of Pacific salmon was covered by thick glaciers some 10,000 to 15,000 yea...

Structure-building cell signals also may influence learning and memory

...n of glutamate receptors is crucial to maintaining memory and learning. The strength of a signal through a n...e). "The balance has to be optimal, since too much memory activation can also be a problem," said Yamaguchi. Yamaguchi's team, which worked on this project f...

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