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Tag: "combinations" at biology news

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

... Applied Physics Division. "Based on our results, combinations of mitigation strategies such as stockpiling vaccines or antiviral agents, along with social distancing measures could be particularly effective in slowing pandemic flu spread in the U.S.," added Longini. The results show that advance preparation of...

UC San Diego biologists solve plant growth hormone enigma

...to manipulate genetically--Zhao's team inactivated combinations of the YUCCA genes and studied the effects of the ... throughout the plant, differed depending on which combinations of genes were deleted. The researchers say that this finding was surprising because most people in...

Parasitic worms used to fight bowel disease

...t that all of these conditions can be explained as combinations of the hygiene hypothesis and genetics. ...

Selenium-protein deficiency raises prostate cancer risk

...e due to its effects on a single selenoprotein, or combinations of several members of this class. One selenoprotein in particular, glutathione peroxidase, is of special interest to Diamond and his associates. They plan to run new tests using new mice genetically modified to reduce levels of just this one selenopr...

Teasing out tissue from blood

...luripotent" embryonic stem cells (ESCs). Different combinations of growth factors can then turn the stem cells into a range of cell types. Moreover, Pharmafrontiers says it is about to submit a patent application on a brew that turns the monocytes into pancreatic islet-like cells that produce insulin in response...

Neurons grown from embryonic stem cells restore function in paralyzed rats

...ntation. In contrast, none of the rats given other combinations of treatments recovered lost function. "We found that we needed a combination of all of the treatments in order to restore function," Dr. Kerr says. Follow-up experiments with GDNF treatment on only one side of the body showed that, by 6 months aft...

Novel therapy combinations gain ground in treating hepatitis

...S. and abroad. Researchers are experimenting with combinations of anti-inflammatory medicines like interferons to...d today at Digestive Disease Week® 2006 (DDW), new combinations of therapies are making significant progress to improve symptoms of the disease. DDW is the largest...

Cells use mix-and-match approach to tailor regulation of genes

...t only in isolation, but also in pairs, trios, and combinations of up to 13 to regulate distinct sets of genes. T...ng professor Trey Ideker, reported a list with 363 combinations of 91 central transcription factors that regulate a large proportion of genes in the yeast genome. T...

UCSD researchers develop 'smart petri dish'

... screen a new drug candidate with all the possible combinations of drugs that a patient may be taking. The Smart Petri Dish allows us to perform a large number of such toxicity assays simultaneously, in order to provide an early indication of the particular physiological or pharmacological conditions that need m...

Higher risk for cervical cancer seen among women infected with multiple HPV types

...es, the scientists hope to pinpoint the particular combinations of HPV types that characterize the high-risk co-infections. ...

Science captures the essence of fruit

...cientists are continuing to seek new gene/compound combinations which they believe will find ready demand in the marketplace. "Alongside colour, flavour and fragrance rank as some of the most important guides to the natural world. The ability for manufacturers to recreate them exactly as they occur in nature wi...

Biologists find regions of rice domestication

...t by geography." DNA is comprised of vast, varied combinations of chemical subunits known as base pairs. Londo, Schaal and their collaborators concentrated on finding genetic markers shared by both cultivated and wild rice types that ranged from 800 to 1,300 base pairs. Cultivated rice has a genetic signature...

Where have all the butterflies gone?

...ut why these butterflies are in decline, including combinations of changing climate and changing land use. In the short term, he said, butterfly species that breed several times a year may rebound quickly to take advantage of improving conditions. But for species with only one brood per year, a catastrophic seas...

New study calculates millions of years saved in lives of AIDS patients

...nniversary of the use of multi-drug antiretroviral combinations for the treatment of HIV infections (also known as highly active antiretroviral therapy or HAART). To analyze the impact of HAART on patient survival, the investigators used a computer simulation model to examine national surveillance and efficacy ...

Researchers find that bumblebees' flower choice matters

...alleled data set by testing the effects of various combinations of plant species on their reproductive patterns. Twice funded by the National Science Foundation, Karron's research centers on the reproductive biology of monkey flower, a wetland plant native to Wisconsin. Karron's lab uses several innovative me...

Singing for survival

... indicator that non-human primates are able to use combinations of calls given in other contexts to relay new, and in this case, potentially life-saving information to one another. This type of referential communication is commonplace in human language, but has yet to be widely demonstrated in some of our closes...

Twenty Years of Malaria Research: Outcomes and Perspectives

...ently recommended malaria therapies (based on drug combinations including an artemisinin derivative) are the result of research carried out at SMRU, which is part of the Wellcome Trust's Major Overseas Programme in Thailand. Professor Nosten is amongst the top ten most-cited researchers in malaria research and ha...

Researchers make nanosheets that mimic protein formation

...cher Zhenli Zhang of Glotzer's group tried various combinations of forces based on information gleaned from experiments performed by post doctoral Zhiyong Tang of Kotov's group. The team discovered that the unique shape of the CdTe nanocrystals gave rise to a combination of forces that conspired to produce the un...

New study suggests promising drug combinations for sleeping sickness

Results from a clinical trial evaluating new drug combinations for sleeping sickness, carried out by the interna...to evaluate the efficacy and safety of three drug combinations for this disease. The aim was to find out if any of these combinations would provide a viable treat...

Selecting life: Scientists find new way to search for origin of life

...ence of DNA). But which of the countless possible combinations of biomolecules and mineral surfaces were key to this evolution? This vexing question has stumped scientists for years because of the sheer volume of possibilities. Now an interdisciplinary team of researchers led by Robert Hazen, of the Carnegie Ins...

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