Tag: "specific" at biology news

Another sexual attraction is possible ...

...cognize each other by their common use of a highly specific "language" is likely to decrease the fitness of mutants that might use slightly different signals. Such "atypical" individuals would either - and most probably - die without leaving any offspring, or - in the unlikely event that they find a mutant pa...

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

...desired level or returned to its natural level, at specific locations in the body and at specific times all this by giving exact and well-timed doses of the same simple drug. In addition, the me...

Fever after smallpox vaccination tied to individual genetic variations

... fever, but Stanley says, We were able to identify specific genetic alterations that contribute to fever even in people who had already received the vaccine before. The research team found that variations in the IL-1 gene complex on chromosome 2 were most closely linked to an increased risk of fever. This c...

UCF nanoparticle offers promise for treating glaucoma

... Subsequent research with his advisors led to the specific application for glaucoma. In their paper on the research, which was also supported by the National Science Foundation, Seal and Mallik note the results are very promising and that their nanoparticle configuration offers seemingly limitle...

Does stimulant treatment for ADHD increase risk of drug abuse?

...ts. The changes observed in brain chemistry were specific to the age and duration of methylphenidate treatment: Specifically, after two months of treatment, brain scans revealed that both groups of treated rats had lower levels of dopamine D2 receptors in their brains than did control animals. In contrast...

Research finds that circadian rhythms dominate all life functions

...enes responsible for the function of an organ or a specific tissue -- are chaotic under this state and don't f...in different organs is a very important and highly specific part of gene function. In addition, genes can oscillate with different amplitude -- the swing betwe...

Study could impact noninvasive treatment of cancer tumors

...nse of either HeLa cells, which are derived from a specific cervical cancer cell line, or Jurkat cells, cancer cells commonly used in research due to their abnormally rapid growth rate in lab conditions. While test results showed that the nanoparticles were not as effective in protecting frozen cells as the ...

Mucosal-surface immune function discoveries could boost vaccine research

...esence of commensal bacteria," Dr. He says. "Using specific receptors on their surface, epithelial cells sense the presence of abundant bacteria and start producing a factor called APRIL. APRIL, a cytokine-signaling chemical, essentially tells nearby B-cells to start producing the IgA2 antigen." IgA2 helps ...

Muscle weakness: New mutation identified

...t the gene, protein and muscle cell levels in this specific neuromuscular disorder will have a significant impact on our understanding of the disease pathogenesis and provide important information for future therapeutic strategies. Walter R. Frontera, an independent expert, says: "Dr. Ochala and collaborators...

Casting the molecular net

...on phosphorylation, the addition of a phosphate at specific sites on a protein. Kinases are proteins that bring about the phosphorylation of other proteins and in this way regulate cellular processes. By getting a network-wide view, multiple aberrant genes of kinase-controlled processes are more easily targ...

Pre-cancerous blood diseases can be products of their environment

...has been supported by the recent identification of specific niches for blood cells including B lymphocytes and megakaryocytes in the bone marrow, she said. Purtons team found in an earlier study that mice lacking the retinoic acid receptor RAR one of three receptors that respond to a derivative of vitamin A...

Cytokine resistance contributes to pathology of type 2 diabetes

... number of cytokines, protein signals that bind to specific receptors on cells and set off a cascade of biochemical reactions within the cell. Interleukins, interferons, tumor necrosis factors and some growth factors are among the cytokines that direct many aspects of the immune response. Cytokines are secret...

JCI table of contents: June 14, 2007

...sistance is genetic background and pregnancy stage specific AUTHOR CONTACT: Sudhansu K. Dey Vanderbilt University, Nashville, Tennessee, USA. Phone: (615) 322-8642; Fax: (615) 322-4704; Email: sk.dey@vanderbilt.edu View the PDF of this article at: https://www.the-jci.org/article.php?id=31622 C...

Improving plants' abilities to cope with saline conditions

...y, were able to achieve a new understanding of the specific mechanisms by which plants deal with salt stress conditions. Based on this knowledge, and through implementation of genetic manipulation techniques, Levine and Leshem were successful in significantly reducing the self-induced membrane damage that ...

Can a Mediterranean diet help prevent colon cancer?

...re important for cancer prevention than intakes of specific nutrients or food groups. We hope this study will give us an indication of the benefits that a persons diet can have on health, especially in terms of reducing the risk of colon cancer, says Zora Djuric, Ph.D., research professor of family medicine a...

Interim analysis of anti-cancer vaccine, BiovaxID, to be conducted

...mphoma (NHL). BiovaxID is a personalized, patient specific vaccine designed to stimulate the patients own immune system to recognize and destroy cancerous B-cells that may remain in the body or may arise after the patient has been treated with chemotherapy. Unlike many other approaches to treating NHL, Biov...

New findings challenge established views on human genome

...oncentrated on functional elements associated with specific genes and have not provided insights about functio...ements, including RNA transcripts, that provide no specific benefits in terms of survival or reproduction. As this pool turns over during evolutionary time, res...

Bacteria ferry nanoparticles into cells for early diagnosis, treatment

... nucleus can the DNA produce proteins that perform specific functions and correct genetic disease conditions."...edicine. "These bacteria can potentially deliver specific molecules into a variety of cells," said Akin, the first author of a research paper appearing online...

New findings challenge established views about human genome

...tain a pool of functional elements that provide no specific benefits in terms of survival or reproduction. This impressive effort has uncovered many exciting surprises and blazed the way for future efforts to explore the functional landscape of the entire human genome, said NHGRI Director Francis S. Collins...

The wider view from a detailed focus

...servoir of active elements that seem to provide no specific or direct benefit. "Our suggestion is that these elements can provide a source for new variation between species and within the human genome. This is our genomic seedcorn for the future. " The scale of the collaboration brings new understa...

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(Date:10/29/2014)... 29, 2014, Beaverton, OR) New research presented ... International Conference in Houston, TX showed for the ... HPV infection in women using a readily available ... study, presented by Dr. Judith A. Smith, Pharm.D., ... and Reproductive Sciences at The University of Texas ...
(Date:10/29/2014)... both genetic and environmental, have been blamed for ... Some, such as a family history of schizophrenia, ... Toxoplasma gondii , a parasite transmitted by ... viewed with skepticism. , A new study by ... at the University of Pennsylvania,s School of Veterinary ...
(Date:10/29/2014)... number of chemicals from household and industrial products are ... bodies. But for most of them, scientists have yet ... taken the first step toward doing that by estimating ... new method is published in the ACS journal ... and colleagues note that the risks to human health ...
Breaking Biology News(10 mins):HPV infections in women eradicated by AHCC, Japanese mushroom extract 2Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3
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