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Tag: "prevent" at biology news

Thymus transplants gives hope to babies with fatal immune disease

...stem was strong enough to get rid of the virus and prevent other infections. Dave'yana then went home. "If it wasn't for Dr. Markert and her team, my baby would not be here right now," Harding said. "They really fought for my baby to get the transplant." Whether she likes it or not, later this month D...

Heavy multivitamin use may be linked to advanced prostate cancer

...ugh there is limited scientific evidence that they prevent chronic disease. Researchers have wondered what impact multivitamin use might have on cancer risk. Karla Lawson, Ph.D., of the National Cancer Institute in Bethesda, Md., and colleagues followed 295,344 men enrolled in the National Institutes of H...

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

...s well, in an HIV vaccine that does not completely prevent the virus from establishing itself in the body." ...ed cells in the body. The window of opportunity to prevent long-term HIV infection may close permanently once a pool of latently infected cells is in place, Dr...

Genome of yellow fever/dengue fever mosquito sequenced

Developing new strategies to prevent and control yellow fever and dengue fever has become more possible with the completion of the first draft of the genome sequence of Aedes aegypti mosquito by scientists led by Vishvanath Nene at The Institute for Genomic Research (TIGR) and David Sev...

No magic tomato? Study breaks link between lycopene and prostate cancer prevention

...e nutritious and tasty, but don’t count on them to prevent prostate cancer. In the May issue of Cancer Epide...dominately found in tomatoes, does not effectively prevent prostate cancer. In fact, the researchers noted an association between beta-carotene, an antioxidan...

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

...fety agencies have established control measures to prevent these pesticides entering the food chain. Similarly, antibiotics used to treat bacterial infections in domestic animals, such as the case of sulphanilamides in cattle, and even those used to improve growth in farm animals, may contaminate food and be...

Rare soft-shell turtle, nesting ground found in Cambodia

...es and to conduct patrols during the dry season to prevent illegal fishing of the species prized as an expensive delicacy in neighboring Vietnam. The organizations will also provide the communities with financial incentives to offset the potential loss of revenue from illegal trade in the turtles. ...

Newly identified mechanism for silencing genes points to possible anti-cancer strategies

...ion, may be operating in a completely novel way to prevent genes from producing proteins. MicroRNAs have been...ocation," Shiekhattar says. "If so, the eIF6 would prevent the assembly of a competent ribosome, thus blocking messenger RNA translation at that gene. The resu...

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

...vity therapeutics given late in life may not be to prevent 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 pr...

New success in engineering plant oils

... So the scientists hypothesized that if they could prevent the chain lengthening by reducing the levels of KASII, they could decrease the likelihood of desaturation and increase the level of saturated fats in the plant seeds. Their hypothesis was supported by the fact that scientists had previously identi...

Blood sugar's manufacture limited by building blocks' supply

...nthesis of new glucose, primarily in the liver, to prevent a life-threatening shortage, a condition known as hypoglycemia. The de novo synthesis of glucose depends on the availability of a substrate molecule that comes from an amino acid. The researchers found that mice with a targeted deletion of KLF15 d...

Mechanism of nicotine's learning effects explored

...reated the slices with nicotine or with drugs that prevent nicotine’s action. Specifically, the researchers studied the neurons of the prefrontal cortex, which contain centers for learning and memory. Researchers had known that nicotine enhances learning by activating receptors for the neurotransmitter ac...

Scientists identify molecular cause for one form of deafness

...t a mixture of mutant espin and normal espin would prevent the structural transition from occurring. If gene expression could turn on the production of just a fraction of normal espin linkers, a kind of rescue attempt at restoring hearing could, in principle, be made. "We have identified the underlying mol...

Aspirin discovery may improve cancer treatments

...ange of inflammatory conditions and can be used to prevent diseases such as cancer, but the way aspirin works is not yet fully understood. In a paper published in the prestigious Journal of Biological Chemistry in April, Professor Bryan Williams, Director of the Monash Institute of Medical Research, led a ...

Changes in amino acids in the 1918 influenza virus cut transmission

...haps we can do something to block transmission and prevent illness." To do this, Dr. García-Sastre and his team studied two key molecular structures: hemagglutinin, a protein located in of the surface of the influenza virus, and sialic acid, a cellular molecule that is recognized by hemaglutinins of both ...

Major gene study uncovers secrets of leukemia

...he B-cell differentiation pathway are predicted to prevent progenitors from changing into normally functioning lymphocytes. Normally, the body eliminates differentiated B lymphocytes that have failed to assemble the right genes to make effective antibodies against the specific target they are supposed to att...

Horse genome assembled

...or more than 25 years to study the mechanisms that prevent maternal immunological recognition and destruction of the developing fetus during mammalian pregnancy. The research, conducted by Cornell professor Doug Antczak, V.M.D, Ph.D., and funded by the National Institute of Child Health and Human Development...

UCSD researchers discover variants of natural tumor suppressor

... move. In cancer, we want the driver to brake, to prevent cell proliferation leading to tumor growth. But in diabetes, heart or neurological disease, where we want to promote cell growth and survival, we don't want to slow the driver down." The researchers have now found that PHLPP1 controls the driver ...

Type of stem cell found to reside in transplanted lungs

...nvolved in organ rejection. In addition to helping prevent organ rejection, other possible uses for the lung-derived MSCs could be therapies related to heart attack and pulmonary fibrosis, Lama says. MSCs are termed progenitor cells; that is, they can differentiate into only limited number of cell types s...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...c bird flu. For decades the nation’s efforts to prevent flu have centered on growing flu virus in hundreds of millions of fertilized eggs, with each egg containing less than a teaspoonful of material that will ultimately become part of a vaccine. It’s typically a six-month process to produce enough flu va...

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