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Tag: "control" at biology news

Studies reveal methods viruses use to sidestep immune system

...ses." Further defining how RNA viruses target and control host immune defenses will aid in drug development to combat disease, he said. In the Virology paper, Dr. Gale and his research group found that a specific mutation in the gene RIG-I conferred permissiveness to HCV, allowing it to replicate "like gan...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...ld shed light on when pesticides should be used to control insects -- crucial for the agricultural industry." ...

New studies suggest airborne SARS transmission is possible

...h the virus despite observance of strict infection control precautions. The investigators wondered whether en...ng the importance of strict adherence to infection control precautions to prevent SARS coronavirus transmission in the health care setting. In the Hong Kong s...

New insight into people who 'see' colors in letters and numbers

...nguish the shapes or graphemes, compared to normal control subjects who were tested on the same patterns. How... cortex when viewing graphemes, compared to normal control subjects. The researchers found that the strength of this activation influences the strength of the ...

Tiny scaffolding allows stem cells to become working fat cells

...rt glucose into energy. "If we could learn how to control fat formation in the body, then we could keep people leaner, lowering their chances of becoming insulin-dependent, and lowering the likelihood they would develop type II diabetes," Kniss said. He also suggested that the new approach might have comme...

White blood cell waste disposal system plays critical regulatory role

...ction. A clear understanding of the processes that control neutrophil turnover may contribute to the development of future therapeutics for conditions characterized by abnormal numbers of these critical immune cells. Human neutrophils are white blood cells that are constantly being produced in the bone marr...

Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer

...on (called the epithelium) and causes them to lose control over their proliferation leading to tumors. Now Klaus Kaestner from the University of Pennsylvania School of Medicine has headed a study that identifies another molecular player influencing the initiation of colon cancers. This study will be publis...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...BN) has developed a novel method to simultaneously control the size and morphology of nanoparticles, which can be used in pharmaceutical synthesis and novel biomedical applications. This groundbreaking research was recently featured in the leading Chemistry journal, Angewandte Chemie, and a United States pa...

Influenza vaccine uses insect cells to speed development

...archer on the study. "The most effective method to control such an outbreak is the widespread use of a vaccine. The traditional egg-based method requires 3 to 6 months to develop the vaccine. With our cell-based method, the time from receipt of the virus strain to the final vaccine product would be shortened...

TEL2 gene cooperates with MYC gene to provoke B-cell lymphomas

... or because the cells suffer mutations that affect control over the level of MYC expression. Excess MYC expression spurs the cells to proliferate. This abnormal behavior then triggers p53 to instruct these overzealous cells to undergo apoptosis. However, such rogue cells can still become fully cancerous if ...

Falling ants glide back to trunk to avoid dangers of forest floor

...ng, or just falling uncontrolled, to being able to control where you land," Yanoviak said. The gliding behavior would be a definite advantage for ants, like Cephalotes, that forage at the outer reaches of branches and are in greatest danger of being knocked off by wind gusts or passing monkeys. There is som...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

... The expression of 20,000?0,000 genes is under the control of an uncounted host of non-coding sequences, which bind transcription factors and thereby regulate when and where genes are expressed. Unlike coding sequences, whose signatures are easy to spot, the characteristic features of non-coding regulatory e...

Scientists discover that host cell lipids facilitate bacterial movement

...d additional insights into how these phospholipids control the cell's actin cytoskeleton. Our discoveries pro...and PIP3 levels to slow the spread of Listeria and control infection in patients who are not responding to antibiotics, although that application is a long way...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...eart attack, and the disease makes it difficult to control blood sugar levels in people with diabetes. If that’s not bad enough, pregnant women with periodontal disease are seven times more likely to deliver low-birth-weight, preterm babies. Proteins are important to study because they are the foundation of ...

Gene therapy for Parkinson's disease moves forward in animals

...nce we turn it on, it's on for life. So we have to control it, and we're working on this as we speak. But it'...hen to move. In tests with 31 monkeys, including a control group, scientists inserted copies of a gene to produce GDNF into a region in the front part of the b...

FDA Approves New Drug to Treat Type I and Type II Diabetes

...) today approved Symlin, an injectable medicine to control blood sugar for adults with type 1 and type 2 diab...in therapy in patients who cannot achieve adequate control of their blood sugars on intensive insulin therapy alone. Symlin will be the only therapy for the t...

Bone Density Recovers After Teens Stop Injected Contraceptive

...male adolescents from 15 to 19 who are using birth control use DMPA, as compared to 3 percent of U.S. women o...tive Injection should be used as a long-term birth control method (e.g. longer than 2 years) only if other birth control methods are inadequate.?The black box ...

Researchers develop rapid diagnostic tool for pathogen identification

...on clinical problem with implications for outbreak control and individual case management,?stated W. Ian Lipkin, MD, Jerome L. and Dawn Greene Professor of Epidemiology and professor of Neurology and Pathology at Columbia University , and senior author of the paper. “However, we envision implementing this me...

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

...hers injected 32 different neonatally infected and control adult rats with salt water or with bacterial LPS. ...ncentrations of cytokines called interleukins than control pups (they tested 32 PUPS in all). Immune cells release these cytokines, or certain protein molecule...

Multiple Campylobacter Genomes Sequenced

...bout why some bacteria cause human disease, how to control their spread, and how to treat the infections caus...ion for the development of new ways to monitor and control Campylobacter in the food chain and in human infection. ...

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