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Tag: "eliminate" at biology news

Study shows big power of small RNAs, not just proteins, in halting cancer

...hway caused cancer tumors to stop growing and even eliminate themselves by activating an immune response in surrounding healthy cells. Most suspected that proteins would be revealed as key to the power of p53, but this latest research published June 6 by Nature now identifies miRNAs as a critical force behind...

Cancer stem cells similar to normal stem cells can thwart anti-cancer agents

...s, but are eventually thwarted because they cannot eliminate a small reservoir of multiple-drug-resistant tumor cells, called cancer stem cells, which ultimately become the source of disease recurrence and eventual metastasis. Now, research by scientists at the University of Pittsburgh School of Medicine sugge...

Fat fish put obesity on the hook

...n Portland, OR, have found a new way fish can help eliminate obesity. In a study to be published in the July 2007 print issue of The FASEB Journal, researchers describe the first genetic model of obesity in a fish. Having this model should greatly accelerate the development of new drugs to help people lose wei...

How 'memory' T cells curb the spread of viruses throughout the body

...ls called lymphocytes that specifically attack and eliminate the virus at the time of infection. After the infection subsides, most of the lymphocytes die but some remain in the body as “memory lymphocytes” and protect the body from recurrence of the disease. Similarly, vaccines induce the production of memor...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...earch has found that a new gene therapy can nearly eliminate arthritis pain, and significantly reduce long-term damage to the affected joints, according to a study published today in the journal Arthritis and Rheumatism. While the study was done in mice, they are the first genetically engineered to develop ost...

'Nurse cells' make life and death decisions for infection-fighting cells

...ders have been identified, T cells then attempt to eliminate disease-infected cells. "In early studies, it was suggested that thymic nurse cells only removed non-functional thymocytes," said Eve Barak, program director in NSF's Division of Molecular and Cellular Biology. "This research shows that nurse cell...

An 'elegant' idea proves its worth 25 years later

...nylacetate and sodium benzoate already know how to eliminate nitrogen in urine, so having more in the body carries more nitrogen out and reduces the toxic effects of excess nitrogen accumulation." Excess nitrogen yields ammonia, which is poisonous and in the case of urea cycle disorders, causes brain damage...

Early exposure to indoor fungus molecules may protect infants against future allergies

...s that can develop resistance to drugs designed to eliminate them." Iossifova says further research is needed to determine how early microbial exposures affect the development of certain allergic conditions—including asthma, dermatitis and hay fever—later in life....

Maggots rid patients of MRSA

... the first time the potential of larval therapy to eliminate MRSA infection of diabetic foot ulcers. If confirmed in a randomized controlled trial, larval treatment would offer the first non-invasive and risk-free treatment of this increasing problem and a safe and cost-effective treatment in contrast to the e...

Alien plants attack using 'resource conservation' as weapon, researchers say

... Funk pointed to recent experiments that tried to eliminate invaders by deliberately reducing available resources-for example, by mixing sugar into the soil to lock up nutrients or by blocking sunlight with tarps. But these experiments had relatively limited success. "Our results can maybe explain why that me...

8 plants from South Africa may hold potential for treating high blood pressure

...jected to a gelatin salt block test for tannins to eliminate any false positive results. None of the plants tested positive for tannins, hence eliminating any false positive results. Ultimately, the eight plants that showed significant ACEI activity in both extract forms were: Amaranthus dubius, Amaranthus...

Students invent protective pouch to enhance cell therapy

... shots a day. If it works, this cell therapy could eliminate the need for that." Progress in cell therapy has been slow for several reasons. First, the injected cells are often attacked by a patient’s immune system. Also, the injected cells cannot survive long without plentiful oxygen and nutrients, which a...

LIAI scientists make important finding on cytomegalovirus transmission

... allow these T cells to do their job and reduce or eliminate this virus." Croft said the scientists also tes...t also greatly reduced the virus load, but did not eliminate it in any of the animals. The findings of the Ware and Croft team parallel those of LIAI research...

Herpes infection may be symbiotic, help beat back some bacteria

...ith." Scientists previously used vaccination to eliminate the deadly and highly contagious smallpox virus. Vaccines are currently in use or in clinical trials for several disease-causing strains of herpes. Human herpes viruses include oral and genital herpes, the chickenpox virus, cytomegalovirus, Epstei...

The quest for an effective HIV vaccine presents new possibilities, challenges

.... Neutralizing antibodies, which can attach to and eliminate free virus, only appear after HIV levels have declined substantially. Further, the effectiveness of these antibodies is stymied because of the rapid genetic changes that occur in HIV’s outer envelope protein, which allow the virus to escape detection...

Hives ferment a yeasty brew, attract beetle pest

...tiply. "If beekeepers can reverse the trend and eliminate the beetles, the hive can be saved," says Tumlinson. "If they can stop the beetles and remove eggs in the hive, the hive recovers." Honeybees are of major economic importance in agriculture as the major pollinating force for much orchard fruit and v...

Biodegradable microspheres deliver time release vaccines, stimulate different immune response

...nitially began their research looking for a way to eliminate the need for booster vaccinations, by developing a vaccine delivery system that released the vaccine into the system slowly over time. They chose a biodegradable polymer, called polyandydride, in a microsphere formulation. This polymer was already ...

NIAID expands capability for influenza research and surveillance

...e how human genes might be silenced to decrease or eliminate flu infections; identify new targets for antiviral medicines; and evaluate flu transmission between patients and physicians in the hospital emergency room setting. Emory will also offer a training program for postdoctoral fellows and veterinarians in...

It's never too late to get it back! Aging interrupted

... this damage, but instead to stimulate the body to eliminate damaged cells that may become cancerous, and to stimulate repair in damaged cells like neurons and heart cells. Low calorie diets drive the body to replace and repair damaged cells. This process usually slows down as we age, but low calorie diets ma...

Studies force new view on biology of flavonoids

...inducing so-called Phase II enzymes that also help eliminate mutagens and carcinogens, and therefore may be of value in cancer prevention. "Flavonoids could also induce mechanisms that help kill cancer cells and inhibit tumor invasion," Frei added. It also appears that flavonoids increase the activation ...

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