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Tag: "person" at biology news

Nerve cell software keeps track of brain change

...ftware can do this one hundred times faster than a person using manual tracing methods can," Dr Vallotton says. "This improvement will speed the progress of brain research ?research which is becoming increasingly urgent in a world where tens of millions of people suffer neurodegenerative diseases like Alz...

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

...rinary Medicine. "You could actually apply it to a person walking off a plane and know if they're infected."...iagnosed with methods that detect the antibodies a person produces in response to an infection. Tripp explained that these tests are prone to false positives ...

Protein 'fingerprint' in spinal fluid could spot Alzheimer's disease

... as the human genome reflects the array of genes a person possesses, the ‘proteome' is the vast collection of proteins expressed by those genes," said Lee. "Essentially we used high-tech methods to contrast the proteomes of Alzheimer's patients against those of a control cohort that included people with oth...

Protein splicing upsets the DNA colinearity paradigm

...mor cells, virally infected, or donated by another person - when T lymphocytes recognize antigenic peptides displayed on the cell surface. The antigens are created by 'proteasomes,' components of the cell machinery that cut foreign proteins into peptides that are then displayed on the cell surface for recog...

Sports cheats beware -- new test detects previously undetectable drug

...lood plasma. There are severe penalties for any person caught taking banned drugs. It is therefore very important that any test is able to be certain about its statement that a particular molecule is present ?in this case synacthen. To confirm that the immunological purification has pulled out synacthen,...

Hopkins researchers discover how brain protein might control memory

...ns and director of both studies. "For example, the person who quits smoking can wean himself from cravings a...ike the childhood game called Telephone, where one person taps her neighbor and whispers a message that is passed on in similar fashion to the next person in ...

Malaria may fuel spread of HIV in sub-Saharan Africa

...alaria increases the viral load of an HIV-infected person on the order of 10 times, it makes HIV more transmissible to a sex partner. Conversely, HIV may play a role in the geographic expansion of malaria in Africa because HIV-infected persons are more susceptible to malaria infections due to their already-...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...ired strains appear to be readily transmitted from person to person and can cause serious skin and soft tissue infections as well as invasive infections such as bone or...

To slow AIDS in Russia, treat HIV-positive addicts, Stanford study says

... benefit of reducing the chances that an infected person will transmit HIV to others. To understand how antiretroviral therapy could affect HIV transmission in Russia, Owens and Brandeau, along with doctoral student Elisa Long, created a computer model of the virus' spread through the adult population...

Early HIV treatment fails to restore memory T cells

... body’s memory T cells vanish within weeks after a person is infected with the HIV virus. In a study from the Aaron Diamond AIDS Research Center and the Bernard-Nocht Institute appearing in the international open-access journal PLoS Medicine, researchers report that these memory T cells, mostly found in the...

Anticipation plays a powerful role in human memory, brain study finds

...dala and the hippocampus - become activated when a person is anticipating a difficult situation. Scientists ...n [of the pictures], the more likely it was that a person would remember more of them right away," says Nitschke. Two weeks after the experiment, scientist...

Gene linked with mental illness shapes brain region, researchers find

...or variants: short, or SERT-s, and long, SERT-l. A person can have two copies of the short gene, one copy ea...s with either one or two SERT-l genes. Whether the person had a psychiatric disorder did not affect the size of the pulvinar. Dr. German cautioned, however...

Early-stage immune system control of HIV may depend on inherited factors

...l levels, but the diversity of HLA molecules ?each person may have up to six different varieties of Class I proteins ?has made investigating the role of HLA type in HIV infection challenging. The current study was designed to determine the contribution of both HLA Class I and the particular viral fragm...

New study aims to stop sepsis in its tracks

...milder infection or other problems, said Angus. "A person may arrive with what looks like a simple case of pneumonia, and the emergency department team starts antibiotics and believes things will go well. Only when the blood pressure drops or is no longer responsive to intravenous fluids does the team reali...

Osteoarthritis may be sign of faster 'biological ageing'

...ere associated with chronological age. The older a person was, the shorter they were. But among the 160 people with hand osteoarthritis, the telomere length was significantly shorter than among those without the disease, even after taking account of influential factors, such as obesity, age, sex, and smok...

Trying to control pain can be a double-edged sword, say scientists

...ut of their control and could only be stopped by a person or computer outside the room. Using one of the centre's fMRI scanners, the researchers were able to show that a number of areas of the brain were activated according to whether the volunteer felt in control of the pain. Most important was the ante...

Genes and genius: Researchers confirm association between gene and intelligence

...isn't going to be the difference between whether a person is a genius or has below-average intelligence." ...ken to bits on the floor and the child crying. The person taking the test would have to put those pictures into an order that tells the story of how the child...

Smokers quit after damage to brain region

...of whether damage to the insula also could cause a person to quit other addictive behaviors. Can a brain lesion cure someone of their bad habits? The answer is not yet known, Bechara said, but he suggested the phenomenon could be "generalizable" with respect to alcohol abuse, overeating and other addicti...

Army research mission focused on autism

... difficult is that each combination to unlock each person affected is so unique." As a result of advocacy efforts, the U.S. Congress provided $7.5 million in appropriations directed to the Department of Defense to initiate the Autism Spectrum Disorder Research Program in 2007. The U.S. Army Medical Resea...

Multiple malaria infection inhibits spread of parasite

...sporozoite can be transmitted with the saliva to a person if he/she is bitten by this mosquito. There the parasite reproduces rapidly and the person becomes ill. Immunity People who live in areas where malaria is prevalent, can develop a na...

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