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Science News Archive 2012 - Page 85


Page 85 of 333

Cellular eavesdropping made easy

A new approach devised by EMBL scientists enables the distinction of proteins secreted by cells from those in their food, allowing measurement of secretion changes over time. This method has opened new avenues for drug and biomarker screening, as well as studying cell responses to drugs and 3D growth conditions.

SourceEuropean Molecular Biology Laboratory·JournalNature Biotechnology·DateSep 24, 2012

JCI early table of contents for September 24, 2012

Researchers at University of California, Berkeley report that epithelial cells in cornea express small antimicrobial peptides to defend against bacterial infections. High levels of prolactin block expression of kisspeptin, a protein hormone that induces secretion of GnRH, leading to infertility in women.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 24, 2012

Embargoed news from Annals of Internal Medicine

Researchers found that brief, multicontact behavioral counseling interventions delivered by primary care physicians reduced hospital stays for adults with risky drinking. The campaign 'Tips from Former Smokers' successfully encouraged smokers to quit, with calls to the toll-free quit line more than doubling during the 12-week campaign.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateSep 24, 2012

Life in the extreme

Two single-celled Archaea species, nearly identical genetically, respond differently to uranium toxicity, one by metabolizing it as energy, and the other by inducing a dormant state. These findings could teach us about mechanisms of adaptation to extreme environments and have implications for understanding antibiotic resistance.

SourceNorth Carolina State University·JournalProceedings of the National Academy of Sciences·DateSep 24, 2012

Managing soil copper in crops irrigated with cattle footbath wastewater

Researchers found that alfalfa growth stops when soil copper sulfate levels exceed 500 ppm and beneficial bacterial activity declines above 50 ppm. Crops irrigated with cattle footbath wastewater can accumulate plant-available copper levels up to 63 ppm, posing potential harm to grazing livestock.

New CU-Boulder study clarifies diversity, distribution of cutthroat trout in Colorado

A novel genetic study led by CU-Boulder postdoctoral researcher Jessica Metcalf has clarified the native diversity and distribution of cutthroat trout in Colorado, revealing a single surviving population outside its native range. The study also confirmed the extinction of two previously unknown cutthroat strains, including one from the...

SourceUniversity of Colorado at Boulder·JournalMolecular Ecology·DateSep 24, 2012

First-ever treatment for rare childhood aging disease shows improvement in all trial participants

A clinical trial demonstrates significant improvements in Progeria children's weight gain, bone structure, and cardiovascular system after receiving a farnesyltransferase inhibitor. The treatment, originally developed for cancer, has shown promising results in slowing down the progression of the disease.

SourceSpectrum Science·JournalProceedings of the National Academy of Sciences·DateSep 24, 2012

Florida State University chemist may hold key to building a better toxin mousetrap

Sourav Saha's research in the Journal of the American Chemical Society has led to the development of a compound that can strip electrons from toxic fluoride, producing tangible benefits for toxin detection and removal. This innovation has far-reaching potential applications in various fields, including the creation of new plastics and ...

SourceFlorida State University·JournalJournal of the American Chemical Society·DateSep 24, 2012

New IVF breakthrough

Researchers at the University of Gothenburg have discovered a chemical that can mature small eggs to healthy, mature eggs, offering new hope for women struggling with infertility. The breakthrough could provide an alternative method to preserving fertility in girls who have not yet reached puberty.

SourceUniversity of Gothenburg·JournalPLOS ONE·DateSep 24, 2012

Eunuchs outlive other men

A study of noble Korean males found castrated eunuchs lived 14-19 years longer than other men. The incidence of centenarians among Korean eunuchs is 130 times greater than in developed countries, offering clues to life extension.

SourceCell Press·JournalCurrent Biology·DateSep 24, 2012

Study finds germ-killing power in the eyes

Researchers at the University of California, Berkeley have identified a germ-killing power in the eyes' keratin protein, which can effectively combat bacteria such as Streptococcus pyogenes and Pseudomonas aeruginosa. The synthetic molecules derived from this protein show promise as low-cost therapeutics against various infections.

SourceUniversity of California - Berkeley·JournalJournal of Clinical Investigation·DateSep 24, 2012

Like prostate cancer, bladder cancer patients may benefit from anti-androgen therapy

A University of Colorado study shows that bladder cancer patients with high CD24 expression have worse prognoses and may benefit from anti-androgen therapies. CD24 expression depends on androgens, and blocking these hormones may diminish the proliferative and metastatic power of bladder cancer cells.

SourceUniversity of Colorado Anschutz Medical Campus·JournalProceedings of the National Academy of Sciences·DateSep 24, 2012

When they do not all look alike: Using identity to reduce own-race bias

New research finds that identifying oneself as part of the same group can improve memory of members of another race. In three experiments, participants showed better memory for members of their own group than others, regardless of race. This effect was especially pronounced when people were motivated to serve a collective goal

SourceSociety for Personality and Social Psychology·JournalPersonality and Social Psychology Bulletin·DateSep 24, 2012