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Tag: "cases" at biology news

Association of herpesvirus with lung disorder questioned

...s in the lung, and may lead to heart failure. Some cases are associated with genetic susceptibility, the investigators noted, but the pathogenesis of most cases is not known. Dr. Katano and colleagues conducted their research using a design similar to that in ...

Jump-starting T Cells In Skin Cancer

...f skin cancer, can be successfully treated in some cases by vaccinating patients with tumor proteins. How these vaccines work and why they are only effective in some patients remains unclear. Pierre Coulie and colleagues now show, in two articles in the January 17 issue of the Journal of Experimental Medic...

Growth in the sea comes down to a struggle for iron

...n out of it. "Now in reality it's warfare. In some cases other bacteria have figured out ways to get the iron from molecules that they didn't produce. So, they can pirate that iron. It's beginning to look like the same thing may be happening in the ocean," Wells explains. In July, by the time Wells and his...

Neuronal 'traffic jam' marks early Alzheimer's disease

...gnificant," said Goldstein. "We found in the early cases a very strong, statistically meaningful swelling in the neurons." The researchers tested whether they could enhance the pathology they observed in the mice and humans by reducing the levels of a key transport protein, kinesin-1, the cell's principal...

Scientists Replicate Hepatitis C Virus in Laboratory

...f chronic hepatitis cases, and up to 50 percent of cases of cirrhosis, end-stage liver disease, and liver cancer. Almost 4 million Americans, or 1.8 percent of the U.S. population, have antibodies to HCV indicating ongoing or previous infection with the virus. Approximately 10,000 to 12,000 deaths each yea...

Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible

...lues decreasedslightly for all samples, but in all cases expression profiles ofsimilar samples could be accurately grouped together.The researchers also examined variations of individual genemeasurements to help determine causes of variability, and they foundthat laboratory practices comprised the smallest...

Scientists detect probable genetic cause of some Parkinson's disease cases

... genetics maycontribute to the development of some cases of Parkinson's disease. Thefindings could lead to ...the disorderand may account for 1½ to 2 percent of cases in individuals who do nothave a family history of the disease. The researchers found a mutationin on...

Newly discovered virus linked to childhood lung disorders and Kawasaki disease

... inthe respiratory tract and other organs in acute cases of Kawasakidisease, suggesting the involvement of a specific microbe, which mayenter the body through the respiratory tract; finally, as the emergenceof SARS illustrates, coronaviruses "are capable of enormously variedpathogenicity." Despite these en...

HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs

...Adverse Event Reporting System. They identified 24 cases of heart rhythm disturbances -- all of which were associated with protease inhibitors. They investigated the hypothesis that the widely-used protease inhibitors may, in fact, be linked to the development of heart rhythm problems through the mechanis...

Learning to fight an adversary that won't stay down

... compounds easier and more productive. But in most cases the microbes continue to hold the upper hand ?and if three billion years of bacterial history is any kind of track record, we're in for an endless running battle, says Dr. Julian Davies, a microbiologist at the University of British Columbia. "We ha...

Scientists seek answers on what activates deadly anthrax spores

... 2001 attacks through the mail that resulted in 18 cases and five deaths, but also after the recent scare at two military mailroom facilities when anthrax alarms went off. The group also would like to understand another closely related bacterium, Bacillus cereus, one strain of which can produce anthrax-li...

U of M researcher examines newly emerging deadly disease

...ock. Purpura fulminans has been identified in five cases in the Minneapolis-St. Paul, Minn., metropolitan a...sease has also been determined in seven additional cases nationwide. Of the 12 known cases, only two patients have survived. Purpura fulminans is an acute i...

Live Recombinant Adenovirus Vaccine Technique Explored

...e used in the developing world. HPV causes 500,000 cases of cervical cancer each year worldwide. Recombinant HPV vaccines currently in clinical trials may not be ideal in poorer countries because they are expensive and require multiple immunizations. The Hopkins researchers developed their vaccine prototy...

Marburg virus disease in Angola - update

...the Ministry of Health has reported a total of 124 cases and 117 deaths in Cabinda, Luanda and Uige. All these cases had originated in Uige Province. Ten of these cases have been laboratory confirmed by the Centers fo...

Dinosaur DNA? New Patent Covers Degraded DNA recovery

...riminal investigators another tool to re-open cold cases or revisit crime scenes, stringing together strands of detached DNA into a genetic trail that could solve a crime or exonerate the falsely accused," says Dr. Ensley. This patent is part of a scientific progression that began in 1989 when DNA was rec...

Mitochondrial DNA mutations play significant role in prostate cancer

...om your mother, so this may explain those familial cases that are notpassed from father to son, but rather through the unaffected mother toher sons."...

Researchers reveal the infectious impact of salmon farms on wild salmon

...lice can lower the fitness of salmon - and in some cases be lethal - as they create open lesions on the surface of the fish that compromises a fish's ability to maintain its salt-water balance. When infection rates are high enough, the parasites feed on the fish at rates greater than the fish can feed itse...

Gene variations explain drug dose required to control seizures

...ricans of all ages, with approximately 181,000 new cases diagnosed each year. Phenytoin and carbamazepine are important first-line anti-epileptic drugs that are widely prescribed throughout the world, Goldstein said. Both drugs commonly spur adverse reactions. "Physicians have long recognized that patient...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...r shrink the primary tumor. "However, in too many cases it's simply impossible to completely remove the tumor," Dr. Huang explained. "So recently the idea of targeting cell migration -- metastasis -- has become an alternative strategy that's gained a lot of interest among researchers." If compounds could...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...s in general may not be using color in the classic cases of mate choice or competitive ability," he said. "Exactly why they are so uniformly colored remains an interesting mystery to us ?one we want to investigate." "There is a sea of colors in birds," he added. "Our goal is to learn why there is such a d...

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