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Tag: "component" at biology news

Researchers find 24 species believed new to science in Suriname rainforest

... heads the RAP program. “Our study will be a vital component in determining how to promote economic development in Suriname while protecting the nation’s most valuable natural assets.” The RAP survey, from Oct. 25-Nov. 6 in 2005, included 13 scientists from CI and partner universities and organizations who ...

Old memory traces in brain may trigger chronic pain

... difficult to treat—the suffering or the emotional component of pain.” Scientists have always tried to unde...re saying there’s a cognitive memory and emotional component in the brain that seems abnormal. Easing that may have a bigger effect on suffering.” Chronic pa...

In mice, drug protects against diabetes and atherosclerosis

...d to have lower blood sugar and triglycerides -- a component of "bad" cholesterol -- and significantly improved insulin sensitivity compared to control mice. Tests also showed that the drug reduced the activity of gene pathway called JNK that triggers the inflammatory and insulin-resistance responses to fatty...

Newly found sensing system enables certain bacteria to resist human immune defenses

...tute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health, have discovered a survival mechanism in a common type of bacteria that can cause illness. The mechanism lets the bacteria protect itself by warding off attacks from antimicrobial peptides (AMPs), which are defens...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...lved in the production of lebercilin, an essential component of photoreceptors in the retina. Lebercilin is found in other tissues as part of the cilia, finger-like projections from the surface of cells capable of moving molecules around. However, mutations in the LCA5 gene only appear to cause defects in the ...

Massive herds of animals found to still exist in Southern Sudan

...nd the Wildlife Conservation Society will be a key component of the overall development of Southern Sudan.”...

New findings challenge established views on human genome

... genome that code for proteins. The protein-coding component of these genes makes up just a small fraction of the human genome – 1.5 percent to 2 percent. Evidence exists that other parts of the genome also have important functions. However, until now, most studies have concentrated on functional element...

In nature, proteins sweep up nanoparticles

...cks, as this process does, could become a critical component of a bioremediation strategy, if only scientists understand how it works. To explore this question, the team turned to Berkeley Lab’s Advanced Light Source, a national user facility that generates intense light for scientific research. Using an im...

Gene responsible for common hearing loss identified for first time

...n operation. However, there is often an additional component of hearing loss which can’t be restored by surgery. As the gene involved is a growth factor, and the disease manifests itself by the abnormal growth of bone in the middle ear, it may have a large potential for therapy”, she said. Improved understandi...

Weizmann Institute scientists develop a general 'control switch' for protein activity

...many additional uses. The switch has a genetic component and a chemical component: Using genetic engineering, the scientists insert a short segment of amino acids into the amino acid sequence making up the protein. This segment is capable of binding strongly and selectively to a particular chemical drug, w...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...as these microalgae, although representing a minor component of the plankton, nevertheless play major roles in oceanic biomass production. "With even more picoplankton genomes in the sequencing queue at DOE JGI, we’re positioned to secure a better grasp on the mechanisms of species adaptation and the great ...

Molecule that destroys bone also protects it, new research shows

An immune system component that is a primary cause of bone destruction and inflammation in autoimmune diseases such as rheumatoid arthritis actually protects bone in the oral cavity from infectious pathogens that play a major role in periodontal disease in humans, research at ...

Egyptians, not Greeks were true fathers of medicine

..., some remain in use today, albeit that the active component is now produced synthetically," said Dr Campbell. "Other ingredients endure and acacia is still used in cough remedies while aloes forms a basis to soothe and heal skin conditions." Fellow researcher Dr Ryan Metcalfe is now developing genetic t...

Spreading viruses as we breathe

... to the ground after leaving the mouth, the liquid component of the droplet dries in the air and the dry residue travels large distances. "When a droplet dries in the air the residue is carried in the air, and therefore there is a risk that people can inhale that air and become infected." Professor Moraw...

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

...gation showed that the new complex also included a component called eIF6. This molecule is known to interfere with the proper assembly of ribosomes, which prevents them from doing the work of translating messenger RNA into protein. "We wondered if certain microRNA-responsive genes might be attracting microR...

Study of protein folds offers insight into metabolic evolution

... examined metabolic proteins at the level of their component structures: easily recognizable folds in the proteins that have known enzymatic activities. These protein domains catalyze a range of functions, breaking down or combining metabolites, small molecules that include the building blocks of all life. ...

Fat overrides effects of vitamin C

...of antioxidants, such as ascorbic acid (the active component of vitamin C), to protect against the generation of potential cancer-forming compounds in the stomach is less than when no lipids are present. “Our results illustrate how diet can influence gastric biochemistry? says Emilie Combet, the post-doctoral ...

NIAID expands capability for influenza research and surveillance

...tions for flu activity and maintain a surveillance component to monitor for evidence of the reemergence of the severe acute respiratory syndrome (SARS). Additionally, the researchers will explore strategies for controlling influenza outbreaks in agricultural settings. University of California at Los Angele...

Researchers find link between food odors and lifespan in fruit flies

...rs ?specifically live yeast, which is an important component of the flies' diets. Exposure to food odors reduce...rs ?specifically live yeast, which is an important component of the flies' diets. Exposure to food odors reduced lifespan in flies that had been subjected to die...

Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle

... the National Institute of Mental Health (NIMH), a component of the National Institutes of Health (NIH), has revealed. While women were winning rewards, their circuitry was more active if they were in a menstrual phase preceding ovulation and dominated by estrogen, compared to a phase when estrogen and progest...

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