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Tag: "uic" at biology news

MetaChip provides quick, efficient toxicity screening of potential drugs

A large, multisite trial designed to examine the safety and preliminary effectiveness of two candidate topical microbicides to prevent HIV infection has opened to volunteer enrollment. The trial, sponsored by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, represents a partnership among various research institutions in Africa and the U...

To translate touch, the brain can quickly rearrange its sense of the body

The brain is bombarded by information about the physical proportions of our bodies. The most familiar sensations, such as a puff of wind or the brush of our own shirt sleeve, serve to constantly remind the brain of the body's outer bounds, creating a sense of what is known as proprioception. In a new study, researchers report this week that the brain's ability to interpret external signals and up...

How cell suicide protects plants from infection

Researchers at Yale have identified a gene that regulates the major immune response in plants, programmed cell death (PCD), according to a recent report in the journal Cell. .. . Dinesh-Kumar first developed a technique for...

UIC researchers show protein routes messages in nerve cells

Nerve cells relay messages at blink-of-the-eye speeds by squirting chemicals called neurotransmitters across tiny gaps called synapses to awaiting message receptors. But lots of different receptors and neurotransmitters work simultaneously. Which goes where to send the proper message? . .. Featherstone and UIC post-doctoral associate Kaiyun...

UIC developing drug for SARS

A prototype drug created by researchers at the University of Illinois at Chicago shows promise in slowing replication of the virus responsible for severe acute respiratory syndrome, or SARS. .. . On the basis of their success, the researchers have received an $8 million grant from the National Institute of Allergy and Infectious Diseases to develop protease inhibitors that would block key enzymes...

Quick identification needed to save Florida's citrus industry from devastating disease

The recent discovery of citrus greening (huanglongbing) in samples collected from trees in South Florida poses a definite threat to Florida's $9 billion commercial citrus industry. Proper identification and eradication methods are needed to reduce the amount of crop loss caused by this disease, say plant pathologists with The American Phytopathological Society (APS). Citrus greening is a bacteria...

Gene patterns in white blood cells quickly diagnose disease

Researchers at Walter Reed Army Institute of Research are developing a method to determine in a matter of hours if someone has been exposed to a bioterrorism agent just by looking at the pattern of active genes in that person's white blood cells. They report their findings today at the ASM Biodefense Research Meeting. . "Effective prophylaxis and treatment for infections caused by biological th...

Animals can change genes quickly to keep up with viral ingenuity

Viruses are famous for evolving quickly, but the organisms they infect can't be expected to sit idly by. There is now new evidence that animals in fact do an impressive job of keeping up in the ongoing evolutionary arms race between viruses and their hosts. Studying a special class of genes thought to have evolved in part as a defense system against viruses, researchers have found evidence that t...

Suicide risk does not increase when adults start using antidepressants, study finds

The risk of serious suicide attempts or death by suicide generally decreases in the weeks after patients start taking antidepressant medication, according to a new study led by Group Health Cooperative researchers and published in the January issue of The American Journal of Psychiatry. The study also found that the risk of suicidal behavior after starting 10 newer antidepressant medications is l...

New MRI technique quickly builds 3-D images of knees

A faster magnetic resonance imaging (MRI) data-acquisition technique will cut the time many patients spend in a cramped magnetic resonance scanner, yet deliver more precise 3-D images of their bodies. . .. Magnetic resonance has long been touted as the ideal method for capturing 3-D images of th...

Despite acidity, orange juice could still be a source of foodborne disease

Orange juice and other foods traditionally not associated with foodborne disease outbreaks can still be a source of disease, although rare. Public health officials should be aware of this possibility and on guard, say scientists presenting today at the 106th General Meeting of the American Society for Microbiology (ASM) in Orlando, Florida. "The more we find out about the behavior of microorgani...

Mussels evolve quickly to defend against invasive crabs

Scientists at the University of New Hampshire (UNH) have found that invasive crab species may precipitate evolutionary change in blue mussels in as little as 15 years. The study, by UNH graduate student Aaren Freeman with associate professor of zoology James Byers and published in the Aug. 11 issue of the journal Science, indicates that such a response can evolve in an evolutionary nanosecond com...

University of Minnesota researchers take new look at cellular suicide

Like a bodyguard turned traitor, a protein whose regular job is to help repair severed DNA molecules will, in some cases, join forces with another protein to do the opposite and chop the DNA to bits, according to new research at the University of Minnesota. The chopping up of a cell's DNA occurs in response to damage, for example, from ultraviolet light, and appears to be a means of killing the c...

Quick -- what’s that smell?

Researchers at the Monell Chemical Senses Center have found that taking as little as a hundred milliseconds longer to smell an odor results in more accurate identification of that odor. This seemingly simple observation has important implications regarding how olfactory information is processed by the brain. The findings appear in the August issue of Neuron. . By demonstrating a clear relations...

Study identifies substances in grapefruit juice that interact dangerously with some drugs

New research from the University of North Carolina at Chapel Hill has identified and established the substance in grapefruit juice that causes potentially dangerous interactions with certain medications. . ..<...

Orange, grapefruit juice for breakfast builds bones in rats

It may sound like Saturday cartoons: a strong-boned rat that can't be broken. But a couple of Texas researchers say the real hero is citrus juice. . .. Osteoporosis affects about 2 million men and 8 million women in the United States, according to the Nation...

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

Detecting bacteria, viruses and other dangerous substances in hospitals, airplanes and other commonly contaminated places could soon be as easy as wiping a napkin or paper towel across a surface, says a researcher from Cornell University. . "It's very inexpensive, it wouldn't require that someone be highly trained to use it, and it could be activated for whatever you want to find," said Margaret...

Drug can quickly mobilize an army of cells to repair injury

To speed healing at sites of injury - such as heart muscle after a heart attack or brain tissue after a stroke - doctors would like to be able to hasten the formation of new blood vessels. One promising approach is to "mobilize" patients' blood vessel-forming cells, called angiogenic cells, so these cells can reach the injured area. . Recently, researchers at Washington University School of Medic...

PET imaging shows young smokers quick benefit of quitting

The early stages of coronary artery disease in young smokers can be reversed quickly if they choose to put out their cigarettes for good, according to a positron emission tomography (PET) imaging study in the December Journal of Nuclear Medicine. . "I believe this is the first PET study that shows abnormal coronary function is reversible after only one month of smoking cessation," said Nagara Ta...

Protein averts cell suicide but might contribute to cancer

Scientists have discovered how an unusual protein helps a cell bypass damage when making new DNA, thereby averting the cell's self-destruction. . .. .. "Unrepaired DNA damage presents a big roadblock for the DNA replication machinery...

100 percent juices found as beneficial to health as fruits and vegetables

When it comes to some of today’s health issues, 100 percent fruit and vegetable juices do help reduce risk factors related to certain diseases. . .. Juices are comparable in their ability to reduce risk compared to their whole fruit/vegetable counterparts say several researchers in the United Kingdom who conducted the literature review. The r...

Cornell researcher helping develop quick, cheap HIV/AIDS test

A Cornell researcher is working to develop a quick, simple and cheap immune-system test for people in the developing world. It could help HIV/AIDS sufferers in the poorest countries get appropriate treatment to extend their lives, possibly by as much as 10 to 15 years. . The work is part of an $8.6 million international consortium, called the CD4 Initiative, led by Imperial College in London and...

'Juiced-up' battery fueled by sugar could power small portable electronics

Dutch researcher Harm Veling has demonstrated that our brains fend off distractions. If we are busy with something we suppress disrupting external influences. If we are tired, we can no longer do this. . .. .. Psychologists carry out a lot of research into the forgetting of distracting information. For this they use a standar...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

Scientists at the Universitat Autònoma de Barcelona (UAB), in cooperation with the CSIC, have developed a new electro-chemical biosensor which detects the presence, in food, of very small amounts of atrazine –one of the most widely used herbicides in agriculture and which also has very long lasting effects on the environment- as well as antibiotics in food. The biosensor is faster, more portable...

Asexual worm quickly adapts to soil contamination

Soil contaminants lead to rapid genetic adaptations in the nematode Acrobeloides nanus. The worms from contaminated soil live longer and lay more eggs under polluted conditions than the worms from unpolluted soil. Dutch-sponsored researcher Agnieszka Doroszuk demonstrated this in her study into the long-term effects of environmental pollution on soil organisms. . Environmental pollution is an im...

New bacteria test could improve quality of fruit and vegetable juice

Increasingly, consumer products, especially food and beverage products, are being scrutinized for better quality. At the University of Missouri-Columbia, a food science expert has developed a rapid, reliable and efficient technique to ensure fruit and vegetable juice products adhere to federal and international quality standards. . Collaborating with scientists in the United States and from aroun...

Resistant HIV quickly hides in infants' cells

New evidence shows that drug-resistant virus passed from mother-to-child can quickly establish itself in infants?CD4+ T cells where it can hide for years, likely limiting their options for future treatment. The study is published in the May 15 issue of The Journal of Infectious Diseases, now available online. . Mother-to-child transmission of HIV is an important factor in the AIDS pandemic, altho...

Arctic ice retreating more quickly than computer models project

Arctic sea ice is melting at a significantly faster rate than projected by even the most advanced computer models, a new study concludes. The research, by scientists at the National Center for Atmospheric Research (NCAR) and the University of Colorado's National Snow and Ice Data Center (NSIDC), shows that the Arctic's ice cover is retreating more rapidly than estimated by any of the 18 computer...
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