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Tag: "severe" at biology news

Scratch no more: Gene for itch sensation discovered

...ing itchiness and providing relief for chronic and severe itching. The "itch gene" is GRPR (gastrin-releasing peptide receptor), which codes for a receptor found in a very small population of spinal cord nerve cells where pain and itch signals are transmitted from the skin to the brain. The researchers, le...

Brain inflammation may be friend, not foe, for Alzheimer's patients

...ty, producing side effects such as encephalitis or severe brain inflammation in people with Alzheimer’s. “The potential to treat Alzheimer’s disease by modulating the immune system is tremendous and is an area that has not been fully explored,” said O’Banion. “That said, people have to remember that the ...

Liver cancer patients with high serum levels of hepatitis B virus face poorer outcomes

...HBV DNA had a significantly increased incidence of severe hepatitis which was associated with the worst surv...had a significantly higher incidence of developing severe hepatitis during chemotherapy and had poorer survival. Other factors significantly affecting surviva...

New bacterium discovered -- related to cause of trench fever

...and debilitated tens of thousands of soldiers with severe leg and back pain and recurrent fevers. The n...rised to find that one of the microbes that causes severe infections in AIDS patients in the U.S was the same species that caused trench fever in WWI soldiers...

In mice, drug protects against diabetes and atherosclerosis

...diet for eight weeks, at which time they developed severe atherosclerosis. Then they were started on the drug to determine whether the drug could halt or reverse the disease process. In both experiments, the drug treatment reduced the size of fatty plaques in the animals' aortas by more than 50 percent c...

Researchers shed light on shrinking of chromosomes

...mes or different numbers of chromosomes result and severe diseases including cancer can arise. But so far we know only little about condensation, a process crucial to the successful separation of chromosomes. Using powerful microscopes, researchers led by Jan Ellenberg at EMBL looked at living mammalian cel...

Clot-dissolving agent may be beneficial in treatment of severe frostbite

...ay help to reduce the risk of amputation following severe frostbite, according to a report in the June issue...beginning in 2001. Patients who were admitted with severe frostbite underwent imaging studies to assess blood flow to the affected limb. From 2001 to 2006, si...

Potato wart eyed as risk to potato production

...ct Agent List" of plant pathogens deemed to pose a severe threat to plant health or to plant products. Although direct losses from potato wart may be insignificant when first detected, indirect economic losses resulting from zero-tolerance regulations for potato wart can be devastating to growers. Indir...

Weizmann Institute scientists develop a general 'control switch' for protein activity

...be possible to replace damaged proteins that cause severe diseases with genetically engineered proteins, and to control these proteins’ activity levels in a precise manner by giving appropriate doses of the drug. Another potential future application is in agricultural genetic engineering. The method might m...

Fat fish put obesity on the hook

...cing the same type of genetic mutation that causes severe obesity in humans. The genetic change blocks the activity of a receptor, the melanocortin-4 receptor, which is at the heart of a “device” in our brains called the “adipostat.” The adipostat regulates body weight homeostatically, like the thermostat ...

Researchers use MRI to predict recovery after spinal cord injury

...cal strategy for patients who may appear to have a severe SCI but may indeed have the capacity for substantial neurological recovery." According to the National Spinal Cord Association, 250,000 to 400,000 people in the United States are living with SCI or spinal dysfunction. An estimated 7,800 new cases ...

'Nurse cells' make life and death decisions for infection-fighting cells

...ortion of the chest. Loss of the thymus results in severe immunodeficiency and increased susceptibility to infection. The function of T cells produced by the thymus is to recognize harmful invaders. Once invaders have been identified, T cells then attempt to eliminate disease-infected cells. "In early st...

HIV and malaria combine to adversely affect pregnant women and their infants

...ancy, accounting for an estimated 400,000 cases of severe anaemia and 200,000 infant deaths each year. With the recent realization that HIV further aggravates pregnancy-associated malaria (PAM) there is an urgent need to understand these diseases during pregnancy and turn this knowledge into effective thera...

How brain pacemakers erase diseased messages

... surgical lesion, another acceptable treatment for severe tremor disorders and epilepsies. But the electronic device has the advantage of being adjustable or reversible. The researchers' report appears in a special June 2007 issue of the journal IEEE Transactions on Neural Systems and Rehabilitation Engi...

An 'elegant' idea proves its worth 25 years later

...as 84 percent, and 96 percent survived episodes of severe ammonia poisoning. An estimated one in 40,000 live births is a child with a urea cycle disorder, according to Hamosh, who says early and accurate detection can now assure prompt treatment. "We’re teaching all medical students at Hopkins to con...

Mice with a migraine show signs of brain damage

...hey can to prevent their headaches. While avoiding severe pain has long been a motivating factor, the scient...some parts of the brain still wind up experiencing severe oxygen shortage, or hypoxia. This causes parts of brain cells?sophisticated signaling structures to ...

US control strategies may make flu epidemics worse, UCLA study shows

...voluntary vaccinations ?is not adequate to control severe flu epidemics and pandemics unless vaccination pro... example, could actually increase the frequency of severe epidemics. This is because when the head of the household makes a choice ?flu shots or no flu shots ...

Traumas like Sept. 11 make brains more reactive to fear

... still experience lingering symptoms that were not severe enough to be diagnosed as a mental disorder. Those with lingering symptoms showed significantly more sensitive emotional reactions in the brain when stimulated by photographs of fearful faces. "Our study suggests that there may be long-term neural ...

UQ research heralds vaccine technology breakthrough

... and billions in the United States. It can lead to severe and lifethreatening lower respiratory tract infection or bronchiolitis. About one in 1000 die from the illness. However, the vaccine that is being developed is expected to treat the illness in infected people as well as prevent against it. Those ...

Invasion of the island bats

... which they originated. These views suffered a severe blow recently when evolutionary studies of birds of the South Pacific and Caribbean lizards uncovered at least three separate cases of island-to-continent colonization. Then again, these few instances could be interpreted as the exceptions that prove...

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