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Researchers identify key processes by which estrogen activates genes in breast-cancer cells

Researchers at the Keck School of Medicine of the University of Southern California (USC) have discovered key processes by which estrogen, the female sex hormone, activates genes in breast-cancer cells.

16 Nov 2011

Scientists determine atomic structure of Lassa fever viral protein

Scientists at The Scripps Research Institute have determined the atomic structure of a protein that the Lassa fever virus uses to make copies of itself within infected cells.

15 Nov 2011

Positive data from MDxHealth's prostate cancer test study

MDxHealth SA, a leading molecular diagnostics company in the field of personalized cancer treatment, today announced data showing that a prototype of its Prostate ConfirmMDx test can help urologists distinguish patients who have a true negative biopsy from those who may have occult cancer undetected by prostate biopsy and histopathological review.

15 Nov 2011

Prox1 gene plays a critical role in formation and maintenance of lymphatic system

A century after the valves that link the lymphatic and blood systems were first described, St. Jude Children's Research Hospital scientists have detailed how those valves form and identified a gene that is critical to the process.

15 Nov 2011

Scientists find new tools to help understand neurodevelopmental disorders

Research released today shows that scientists are finding new tools to help understand neurodevelopmental disorders like autism and fragile X syndrome. These studies show in new detail how the brain's connections, chemicals, and genes interact to affect behavior.

15 Nov 2011

New animal research finds life experiences influence brain development, behavior

Scientists presented new research today demonstrating the impact life experiences can have on genes and behavior. The studies examine how such environmental information can be transmitted from one generation to the next - a phenomenon known as epigenetics.

15 Nov 2011

Women with inflammatory breast cancer now have a chance of treatment

Women with the deadliest and rarest form of breast cancer now have a chance of treatment where once their options were severely limited, thanks to a new discovery by George Mason University researchers.

15 Nov 2011

New clues about connections among fat, inflammation and insulin resistance

In a new study, scientists report that they substantially curbed weight gain, improved metabolism, and improved the efficacy of insulin in mice by engineering them to express a specific human enzyme in their fat tissue. Although the obesity prevention came at the significant cost of widespread inflammation, the research offers new clues about the connections among obesity, insulin resistance and type 2 diabetes, and inflammation.

14 Nov 2011

Occupational chemical exposure raises for Parkinson's

A new research report contributes to the increasing evidence that repeated occupational exposure to certain chemical solvents raises the risk for Parkinson's disease. Researchers analyzed the occupational histories of twins in which one of the pair developed the neurodegenerative disorder, and assessed that twin's likelihood of exposure to six chemicals previously linked to Parkinson's.

14 Nov 2011

Scientists discover molecular basis for tamoxifen resistance and potential way to defeat it

In the last three decades, thousands of women with breast cancer have taken the drug tamoxifen, only to discover that the therapy doesn't work, either because their tumors do not respond to the treatment at all, or because they develop resistance to it over time. Now researchers at the University of California, San Francisco (UCSF) have discovered the molecular basis for tamoxifen resistance and found a potential way to defeat it.

14 Nov 2011

Researchers show how ER-positive breast cancer tumors become resistant to tamoxifen

Researchers have shown how estrogen receptor-positive breast cancer tumors become resistant to tamoxifen, the only approved hormonal therapy for premenopausal patients with this type of breast cancer.

14 Nov 2011

Novel gene mutation may increase risk of inherited and sporadic cases of MM

A major international study has identified a novel gene mutation that appears to increase the risk of both inherited and sporadic cases of malignant melanoma, the most deadly form of skin cancer.

14 Nov 2011

Researchers retrace evolution of unusual bacterial infection

Researchers at Harvard Medical School and Children's Hospital Boston have retraced the evolution of an unusual bacterial infection as it spread among cystic fibrosis patients by sequencing scores of samples collected during the outbreak, since contained.

14 Nov 2011

Scientists suppress NCoR1 protein and create mighty mice

A team of researchers at EPFL, the University of Lausanne and the Salk Institute created super strong, marathon mice and nematodes by reducing the function of a natural inhibitor, suggesting treatments for age-related or genetically caused muscle degeneration are within reach.

11 Nov 2011

Regulated gene transcription more complex than previously thought

Cells develop and thrive by turning genes on and off as needed in a precise pattern, a process known as regulated gene transcription. In a paper published in the Nov. 9 issue of the Journal of Neuroscience, researchers at the University of California, San Diego School of Medicine say this process is even more complex than previously thought, with regulated genes actually relocated to other, more conducive places in the cell nucleus.

11 Nov 2011

NCoR deficiency may pump up muscles and prevent diabetes

Two independent studies in the Nov. 11 issue of the journal Cell, a Cell Press publication, suggest a common way to pump up muscles and prevent diabetes. The key is a molecule required for fine-tuning metabolism by selectively and subtly modifying core metabolic programs.

11 Nov 2011

New unsuspected role for nuclear receptor corepressor protein

By knocking out a key regulatory protein, scientists at the University of California, San Diego School of Medicine and the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland dramatically boosted insulin sensitivity in lab mice, an achievement that opens a new door for drug development and the treatment of diabetes.

11 Nov 2011

Insights into potential causes of temporomandibular joint disorders

New findings about painful jaw problems that plague millions of Americans are leading to a better understanding of pain disorders.

11 Nov 2011

eButton combines the powers of cameras, GPS, and other sensors to combat obesity

People attempting to lose weight won't need to track their daily food intake anymore, thanks to a wearable, picture-taking device created at the University of Pittsburgh. eButton -- a device worn on the chest (like a pin) that contains a miniature camera, accelerometer, GPS, and other sensors -- captures data and information of health activities, eliminating the need for daily self-reporting.

10 Nov 2011

Combination of azacitidine and entinostat shows promise against NSCLC

A new type of therapy aimed at reversing the gene-silencing that promotes cancer-cell growth has shown promising results in a small clinical trial conducted by researchers at the Johns Hopkins Kimmel Cancer Center.

10 Nov 2011