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Tag: "kills" at biology news

Scientists discover unique microbe in California's largest lake

... now highly polluted water body. Aftermassive fish kills and avian mortality in the 1990s, federal agenciestargeted the lake for one of the nation's largest restoration projects.Wood says the discovery also shows that the Salton Sea, with its highload of nutrients, may provide an environment that allows th...

New Treatment Rivals Chemotherapy For Lymphoma, Study Finds

...ody injected into the bloodstream that targets and kills cancer cells. Of the 76 patients enrolled in the study, 95 percent responded to the treatment and 75 percent had a complete response, meaning no evidence of cancer remained. More than three-quarters of patients with a complete remission were disease-...

Protein offers way to stop microscopic parasites in their tracks

...idium. Malaria, which is spread by mosquito bites, kills at least 1 million people per year through damage to red blood cells and clogging of the capillaries that feed the brain and other organs. Cryptosporidium, which causes diarrhea, vomiting and other symptoms, is one of the most common causes of water-...

Dead zone area in Gulf could be increasing, researchers say

...oncentrations in water. Hypoxia can result in fish kills and can severely impact other forms of marine life where it is present. The dead zone area covers about 6,000 square miles in the Gulf. The dead zone is located along the Louisiana coast where the Mississippi and Atchafalaya Rivers empty into the g...

Viral protein influences key cell-signaling pathway

... apart from HIV, Lairmore says. "Unlike HIV, which kills cells and destroys the immune system, HTLV-1 enhances the survival of T cells." But scientists don't understand how it prolongs T-cell survival and causes their proliferation. This study's findings offer some clues. It is the latest in a series of ...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

...codynamics, their effect on bacteria or how a drug kills bacteria. “In the past, blood samples were taken and the serum concentration of the drug was measured and that number was used to make dosing decisions,?said Derendorf, whose work is primarily funded by the pharmaceutical companies Pfizer and Sankyo...

Researchers identify protein crucial for survival of Lyme-disease bacterium

...re whether the lack of the BptA protein ultimately kills the bacteria or inactivates them," Dr. Norgard said. "But certainly it prevents them from replicating in the manner that they should to sustain the numbers needed to move from the midgut to the salivary glands. We don't understand the mechanism for t...

Gray wolves maintain the food chain in winter

...th a changing climate. Their models show that wolf kills temper the potentially devastating effects of clim...ndance will decline with shorter winters. But wolf kills buffer these shortages, providing meals that could determine whether scavengers will be able to surv...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

... Adrian J. Hobbs of University College London. "It kills pathogens via a variety of mechanisms, mostly related to inhibition of metabolic enzymes and destruction of DNA." However, too much NO can be a bad thing. Sustained overproduction of NO can cause septic shock (sepsis). "In sepsis, which is a systemi...

Discovery may lead to better Candidiasis drug

...he naturally occurring antifungal agent in saliva, kills the oral pathogen Candida albicans, the fungus responsible for most HIV-related oral infections. Researchers led by Mira Edgerton, D.D.S., Ph.D., discovered that histatin binds to a specific membrane protein called TRK1p, which regulates potassium i...

Stealth Worms May Improve Insect Pest Control

...he insect, the nematode vomits the pathogen, which kills the host within 24 to 48 hours and even digests its tissues, creating a perfect environment for the EPN to grow and multiply. One or more adult generations live entirely inside the decaying insect. The third stage infective juvenile is the only one t...

Cousin of Asian super termite invades Florida

... to humans and the environment. Less than one gram kills an entire colony containing millions of termites. The control is marketed worldwide as the Sentricon Termite Colony Elimination System by Dow AgroSciences. ...

Shark attack worries? Driving to the beach is more deadly

...h is far more dangerous, but an auto accident that kills several people will not make big headlines across the U.S. But a shark attack on one person will." According to the International Shark Attack File, only seven fatalities occurred worldwide due to shark attack in 2004, there were only four in 2003, ...

New HIV drug candidate developed in Sweden

...h is far more dangerous, but an auto accident that kills several people will not make big headlines across the U.S. But a shark attack on one person will." According to the International Shark Attack File, only seven fatalities occurred worldwide due to shark attack in 2004, there were only four in 2003, ...

Agilent Technologies introduces advanced zebrafish, mouse microarrays for stem cell and developmental biology research

...h is far more dangerous, but an auto accident that kills several people will not make big headlines across the U.S. But a shark attack on one person will." According to the International Shark Attack File, only seven fatalities occurred worldwide due to shark attack in 2004, there were only four in 2003, ...

Alien woodwasp, threat to US pine trees, found in N.Y.

...ia and northern Africa, where it rarely is a pest, kills pines, and sometimes several other types of conifers, by introducing a toxic mucus and spores of a toxic fungus when the female lays her eggs through the bark and into the sapwood of the tree. "If S. noctilio is found to be established in New York o...

High fidelity keeps human DNA assembly line humming

...Nero on the throne of ancient Rome. Alpha-amanitin kills people by stalling movement of the DNA conveyer belt. Finding evidence of quality control gives some perspective to the elegance of cell creation. Burton said it does not mean mistakes never occur. The assembly line analogy holds up there. The human...

Malaria killing a million a year

...nn Veneman said in New York. "It is a disease that kills one child in sub-Saharan Africa every 30 seconds. The numbers are astounding -- and unacceptable." Insecticide-treated bed nets and new artemisinin-based combination therapies must reach many more people, but "many countries are moving forward with ...

New insights into how Huntington's disease attacks the brain

... mutant protein that arises within brain cells and kills them, triggering the genetic neurological disorder. Now a new UCLA Neuropsychiatric Institute study reveals the first strong evidence that the mutant protein also elicits toxic interactions from neighboring cells to provoke the fatal brain disorder. ...

Study: Harmless virus kills some cancers

...ty of the population but has no known ill effects, kills multiple types of cancer cells yet has no effect on healthy cells," said Craig Meyers, Ph.D., professor of microbiology and immunology, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center. "We believe that AAV2 recognizes that...

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