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Tag: "cause" at biology news

Chromosome Deletion Predicts Aggressive Neuroblastoma

...are more likely to resist initial treatment, or to cause a relapse. Identifying the correct risk level allows doctors to treat aggressive cancers appropriately, while not subjecting children with low-risk cancer to overtreatment. Oncologists know that amplification, an abnormal increase in the number of c...

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

...rst time that different genes within the haplotype cause transmission ratio distortion and sterility." The research is published in the March 1 issue of the Proceedings of the National Academy of Sciences. ...

At long last, scientists figure out how plants grow

...processes. For example, they are the hormones that cause roots to grow downward and flowers to track the mo...re produced in shoot tips, lopping off the tip can cause numerous side shoots to appear, giving a plant a denser, more sculpted look. Auxin also promotes fr...

Roots Engage in Underground Chemical Warfare

...explanation for why so few bacteria types actually cause disease in plants. Of the more than 50,000 plant d...fenses does not readily explain why a pathogen can cause disease in one plant species and not another," says Vivanco. "Our findings will help researchers sol...

What's really making you sick? Plant pathologists offer the science behind Sick Building Syndrome

...ms involving exposure to toxins. Mold is a common cause of SBS, said Mani Skaria, Ph.D, plant pathology pr...t." Apart from mold, dust and other antigens also cause SBS. This makes SBS a complex problem and requires objective inspections for possible causes to dete...

Undesirable expatriates: Preventing the spread of invasive animals

... Globally, invasive species are the second leading cause of animal extinction, preceded only by habitat loss. Not all introduced animals become invasive. When moved into a foreign environment, many animals find conditions unfavorable and fail to establish. In an effort to gain insight into how frequently ...

NIAID begins clinical trial of West Nile virus vaccine

...erience in clinical trials, DNA vaccines generally cause few side effects, making them a promising alternat...pecific antibodies and T cells. The vaccine cannot cause West Nile virus infection or disease because it does not contain infectious material from the virus....

Genetic therapy reverses nervous system damage in animal model of inherited human disease

... diseases called lysosomal storage disorders which cause severe, sometimes fatal, disabilities in about one in 5,000 births. The members of the research team from the University of Pennsylvania School of Veterinary Medicine, the Children's Hospital of Philadelphia and the U.S. Naval Academy published their...

Friendly bacteria in humans may protect against HIV

...e oral and vaginal cavities of humans. They do not cause disease. They target HIV because the virus is coated with the sugar mannose, which they use as a food source. "Different bacteria have different sugar preferences," says Tao. "To block HIV, however, we needed to find bacteria that prefer the unusual...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...ndustries in the gulf. Red tides, for example, can cause outbreaks of life-threatening diseases, such as pa...ure. It is possible that agricultural runoff could cause additional stress if it does lead to toxic blooms or hypoxia." She and her colleagues plan to condu...

UCSD research reveals mechanism involved with type of fatal epilepsy

...ecessive mutations in two genes have been shown to cause Lafora disease. The genes encode the proteins laforin and malin, but the molecular mechanism defining how loss of laforin or malin causes Lafora disease has remained unclear. Jack E. Dixon, Ph.D., UCSD dean of scientific affairs and professor of pha...

Multiple-drug resistant gene expression pattern predicts treatment outcome for pediatric leukemia

...luminate potential new targets for overcoming this cause of treatment failure in childhood ALL," explains Dr. Evans. ...

Doctors closer to using gene analysis to help trauma patients

... a patient’s recovery as well as the elements that cause people to die sometimes weeks after an injury occu... organ failure and death, which is the most common cause of death after traumatic injury ?sepsis and multisystem organ failure. So the goal is to use functio...

To sea or not to sea: When it comes to salmon sex, size sometimes doesn't matter

...to spawn. Straying is just one of the traits that cause Quinn to say that salmon have chances to recover from years of declines "if we would only take our collective foot off their neck." "A great deal of habitat from southern British Columbia to California is no longer accessible to salmon or has been a...

UCLA scientists store materials in cells natural vaults

...e missing or defective enzymes, such as those that cause Tay Sachs disease * DNA delivery to correct genetic mutations * Timed release of drugs, enzymes and DNA * Extracting and imprisoning cellular toxins into the vault * Stabilizing proteins in vaults to increase their lifespans AUTHORS...

Bevacizumab Combined With Chemotherapy Improves Progression-Free Survival for Patients With Advanced Breast Cancer

...y diagnosed cancer in women and the second leading cause of cancer-related death in women in this country. An estimated 40,110 deaths from female breast cancer will occur in 2005 in the United States, accounting for about 15 percent of all cancer-related deaths in women in the nation. ...

Norovirus found to cause traveler's diarrhea

...d Guatemala were attributed to Norovirus, a common cause of nonbacterial gastroenteritis outbreaks usually ...icrobiology. "Noroviruses are known to be a major cause of food and waterborne gastroenteritis outbreaks in domestic and unique settings, such as cruise shi...

Could microbes solve Russia's chemical weapons conundrum?

...both liquid and aerosol form (mustard gas), it can cause severe burns to the skin, and severe damage to the respiratory system and internal organs if ingested or inhaled. It accounts for around 2 percent of Russia's CWA stockpile. Around 60 percent of the mustard RM consists of derivatives of a toxic comp...

Study uncovers bacteria's worst enemy

... cadmium, nickel, and chromium, are more likely to cause problems for the bacteria." Generally, bacteria used for bioremediation are selected to target a specific form and oxidation state of toxic pollutants, such as soluble hexavalent uranium carbonate for uranium contamination. However, a single chemica...

Secret of smallpox's success may lead to bioterror cure

...verify that the de-cloaked viruses not only do not cause disease, but improve disease resistance when they are present. When a mouse has been exposed to a lethal vaccinia virus and then is vaccinated with a very low dose of the mutant virus ?only 100 virus particles ?the mouse gets sick but eventually reco...

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