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Tag: "relationship" at biology news

Inflammation and drugs to control this activity studied in a variety of tumors sites

...rst time that anyone has looked at this particular relationship ?the potential effects of antihistamines on the development of brain tumors in adults," said Scheurer. "It's apparent that some type of inflammatory response is playing some role in the development of brain tumors. We don't know exactly what that rol...

Heat-shock protein vaccine reduces alveolar bone loss

...hogenic bacteria. There was a very strong inverse relationship between post-immune anti-P. gingivalis HSP immunoglobulin G levels and the amount of alveolar bone loss induced by either P. gingivalis or multiple bacterial infection (p = 0.007). Analysis of data from polymerase chain-reaction indicated that the v...

New pathways for autoimmune treatment identified

...y and Genomic Medicine and co-senior author. "This relationship means that i NKT cells are critical to most autoi...efective Aire gene disrupts this natural nurturing relationship by disrupting medullary epithelial cell function, leading to insufficient numbers of i NKT cells. ...

Atmospheric ozone recovering in mid-latitudes, report shows

...el improvement and to establish a cause-and-effect relationship based on direct measurements by multiple satellite andground-based, ozone-monitoring systems. "We do think we're on the road to recovery of stratospheric ozone, but what we don't know is exactly how that recovery will happen," said Derek Cunnold, a ...

Chemical in many air fresheners may reduce lung function

... these compounds." The researchers examined the relationship between blood concentrations of 11 common volatile organic compounds and lung function measures in a representative sample of 953 adults. VOCs are a diverse set of compounds emitted as gases from thousands of commonly used products, including tobacco...

Key stress protein linked to toxicities responsible for Parkinson's, Alzheimer's

.... "Our data demonstrate a previously unrecognized relationship between NO and protein misfolding in degenerative disorders, showing that PDI can be a target of NO in cellular models of Parkinson's disease and human neurodegenerative disease." A protein's structure determines its function. Genetic defects as w...

Bones hold the key to blood renewal

...sses of renewal and breakdown in the body, and the relationship between blood-forming stem cells, bone, and the immune system. In some forms of osteoporosis, autoimmune arthritis, and cancer that has metastasized to the bone, for instance, the osteoclasts demolish bone faster than it is built up. This study sugge...

DOE JGI sequences, releases genome of symbiotic tree fungus

...rhizal root is created, resulting in a mutualistic relationship that significantly benefits both organisms. The fungus within the root is protected from competition with other soil microbes and gains preferential access to carbohydrates within the plant. Such mycorrhizae are critical to terrestrial ecosystems, ...

UCLA scientists strengthen case for life more than 3.8 billion years ago

...ong. We found a much more compelling cross-cutting relationship in the rocks than we originally thought." The new research is a comprehensive response to the critics, Harrison said. "We've been holding our fire rather than fire away at each criticism in a piecemeal way," he said. "We've gone back to Greenlan...

Gene expression becomes heterogeneous with age in humans and rats

...nty of room for further explanations regarding the relationship between aging-related changes at the organismal level and the underlying molecular mechanisms of aging. Nevertheless, the new results show that with the increasing amounts of molecular data available to researchers, scientists will now experience imp...

Nicotine exposure during development leads to hearing problems

...sured in an animal, this establishment of a causal relationship between prenatal nicotine exposure and auditory-cognitive deficits is an important step forward in reinforcing these previous findings in humans," Metherate said. According to the researchers, given the importance of acetylcholine to a number of br...

Smooth sailing: 'cruise ship virus' tackled by UH, Baylor College of Medicine

...building will rely on the disease protein/antibody relationship that occurs in the human body. As with all diseases, when an individual is infected with the Norwalk virus, the human immune system creates antibody proteins that bond only with proteins that are specific to that disease. Under Ruchhoeft and Wil...

Combating anthrax: Results of study published this month as researchers look for a better vaccine

...vaccine, made by VaxGen Inc., demonstrated a clear relationship between the amount of vaccine administered and the subsequent immune response. The study was designed to evaluate the safety and immunogenicity of escalating doses of the new vaccine. A total of 100 healthy adults were randomized to receive either o...

Primates take weather into account when searching for fruits

...itions and a more generalized understanding of the relationship between temperature and solar radiation and the maturation rate of fruit and insect larvae. The findings are also consistent with the idea that the evolution of primate cognitive skills has proceeded, at least in part, as a result of ecological chall...

Schepens scientists are first to discover angiogenesis switch inside blood vessel cells

.... The team concluded that it was the competitive relationship between these two enzymes for the lipid that was at least part of the intracellular switch for which they and other scientists have been searching. They also concluded that blood vessel growth or regression was dependent on the relative activity of t...

Airborne mold spores increase kids' risk for multiple allergies

...ey grew older. This is the first study to show a relationship between specific airborne fungal spores and an increased risk for multiple allergies in children, the UC team reports in an upcoming edition of Pediatric Allergy and Immunology and an early online edition June 14. A fungus is a plantlike organism t...

Carnegie Mellon researchers discover key deficiencies in brains of people with autism

...stantly translated into pictures." To test this relationship between the language and visuospatial systems of the brain, the team used fMRI scans to view the patterns of activation in the brains of autistic and normal participants while they read a series of sentences to determine whether each one was true or ...

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

...ple measurements longitudinally to investigate the relationship between multiple HPV types and a woman's risk for developing pre-cancerous abnormalities in her cervix. During each of the 16,000 patient visits, both the pap smear and HPV tests were administered. The mean follow-up time of the study participants wa...

How did cactuses evolve?

... often heralded as a striking example of the tight relationship between form and function in plants," write the authors. "A succulent, long-lived photosynthetic system allows cacti to survive periods of extreme drought while maintaining well-hydrated tissues." Recent molecular phylogenetic work has confirmed th...

UCLA study finds same genes act differently in males and females

... good understanding of why the sexes vary in their relationship to different diseases," explained Xia Yang, Ph.D., first author and postdoctoral fellow in cardiology at the David Geffen School of Medicine at UCLA. "Our study discovered a genetic disparity that may explain why males and females diverge in terms o...

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