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Tag: "contribute" at biology news

Secrets of the sea yield stronger artificial bone

...rease fracture resistance. "These characteristics contribute to the scaffolding's mechanical toughness. Cracks don't propagate as easily and more energy is needed to break the material," says Tomsia. "This makes the scaffolding four times stronger than the porous hydroxyapatite materials currently used in bone...

Plants used to detect gas leaks, from outer space!

...e not only costly to the gas distributors, but can contribute to global warming since methane has a global warming potential about 8 times that of CO2. When plant roots are starved of oxygen the stress caused to the plant can be quantified from the spectral quality of light reflected from the leaves, even befo...

Study finds 60 new genes controlled by DNA snippet

...e human genome, the CArG-SRF system is believed to contribute to disease in many bodily tissues. In cardiology, studies show that a lack of SRF-CArG causes cardiomyopathy, a weakening of heart muscle cells' ability to contract. That in turn reduces the pumping strength of heart muscle and leads to heart fail...

Genes affecting blood pressure change as children become adults

...ood pressure in blacks can be identified, it could contribute to solving health disparities such as blacks tending to have higher rates of hypertension that start at a younger age, he says. ...

VCU Massey Cancer Center researchers identify a new class of anti-cancer drugs based on platinum

...s. By understanding the features of cisplatin that contribute to resistance, Farrell and his team designed the new compound to circumvent these problems. ...

Dying of excitement

...cells get excited to death-- a phenomenon that may contribute to brain damage during stroke and Alzheimer's disease. Indeed, brain deterioration after stroke is associated with elevated levels of glutamate -- the major excitatory neurotransmitter in the mammalian central nervous system (CNS) -- in the plasma a...

More evidence mammals, fruit flies share make-up on function of biological clocks

...es sleep/wake cycles and many other processes that contribute to our overall health," said Blau. ...

HIV vaccine takes different tack to boosting immune response

... as therapeutic vaccines. Therapeutic vaccines may contribute to the long-term control of HIV infection and will relieve HIV patients of their heavy dependence on antiretroviral drugs, many of which are expensive and require daily administration. "Conventional wisdom is that natural immune responses play an im...

ASU researchers find link between social behavior, maternal traits in bees

...s was characterized by larger ovaries, which would contribute to greater reproductive output, furthering the case that foraging behavior was tied to reproductive traits. Amdam then put her results to a crucial test -- wild-type bees (bees that had not been used in the experiment) were captured after their firs...

Free-radical busting antioxidants might not promote healthy hearts

... cholesterol by free radicals—a process thought to contribute to the build-up of disease-causing fatty deposits on artery walls. But a new study, published online on April 10 in The Journal of Experimental Medicine, suggests that the heart-healthy effect of one antioxidant has little to do with cholesterol oxid...

Gene variation increases SIDS risk in African Americans

...f the gene. How, they asked, might this variation contribute to SIDS? The SCN5A gene codes for a sodium chann...good candidate for a genetic difference that could contribute to SIDS," said Goldstein, "but we had no clear idea how it increased risk since the Y1103 variant di...

Genome changes tracked during multiple myeloma initiation, progression and treatment

...M patients based on genetic perturbations known to contribute to MM pathogenesis. Although genetic screening studies have provided some insight into the pathogenesis that underlies MM, the full landscape of genomic events driving cancer initiation, progression, and response to treatment have remained hidden fr...

Salk researchers make fast strides towards understanding how our body controls walking

...contract. To explore whether V1 neurons actually contribute to the CPG, Goulding and his colleagues performed electrophysical studies on isolated spinal cords. They found that, while normal spinal cords showed a standard pattern of activity that mimics walking, the rhythmic pattern in spinals cords lacking fu...

Can dogs smell cancer?

...n's best friend, the dog, may have the capacity to contribute to the process of early cancer detection. In this study which will be published in the March 2006 issue of the journal Integrative Cancer Therapies published by SAGE Publications, researchers reveal scientific evidence that a dog's extraordinary sc...

Report shows deforestation threatens Brazil's Pantanal

...f CI-Brazil's Pantanal's Program. "These locations contribute to wildlife populations and serve as refuges for the fauna during unfavorable seasons, sheltering species that migrate to avoid floods and climate extremes." Losing native vegetation causes soil degradation and changes the hydrological processes, wh...

Evolutionary shifts in olfactory sensitivities in fruit flies

... organization. More broadly speaking, the findings contribute to our understanding of the evolution of sensory systems and their adaptation to new conditions and resources. ...

A new way of looking at molecular motors

...are supposed to. The motors in parasitic organisms contribute to disease by enabling the parasites to break through biological barriers within the human body and actively invade cells. So far, molecular motors have been found in all organisms but bacteria, red algae, and the parasite Giardia. The new myosin cl...

Two NIH initiatives launch intensive efforts to find roots of common diseases

...tools used in these kinds of genetic studies, will contribute enough laboratory resources to study two additiona...yriad genes in an individual that, taken together, contribute to an increased risk of illness ?or that increase the chances of a healthy life. As the genetic unde...

Report finds cruise industry is protecting the precious places it visits

...velop cooperative programs, tours and initiatives; contribute to sustainability through local training and capacity building; and help organize local communities to capture revenue from increased tourism, through local handicrafts, community-owned businesses, excursions and other ventures. Shore Operators: Sh...

When good DNA goes bad

...quences because the shapes of the bases themselves contribute to Z-DNA formation. For example, the sequence CG repeated more than 14 times in a row is prone to forming Z-DNA, while the sequence AT is not as efficient at forming this structure. Analysis of the genome reveals that DNA sequences prone to forming ...

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