G Protein News and Research

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Researchers identify mechanism by which an anti-TNF therapy impairs host defense against tuberculosis

The life of many individuals with inflammatory diseases such as rheumatoid arthritis has been dramatically improved by treatment with drugs that target the protein TNF, so called anti-TNF therapies.

20 Apr 2009

Chemopreventive isothiocyanates selectively depletes mutant p53 in tumor cells

Researchers at Lombardi Comprehensive Cancer Center at Georgetown University Medical Center have demonstrated that naturally-occurring compounds can selectively deplete mutant p53 and restore "wild type" function to p53 in a variety of tumor cells.

20 Apr 2009

Eggs for breakfast help manage hunger and calorie consumption

New studies presented this week at Experimental Biology 2009 enhance the growing body of evidence supporting the nutritional benefits of eggs.

20 Apr 2009

Protein FGFR3 a potential therapeutic target for several cancers

Several forms of cancer, including bladder cancer and multiple myeloma caused by the t(4;14) genetic abnormality, are associated with either overexpression or perpetual activation of the protein FGFR3.

20 Apr 2009

Study looks at shikonin for human gastric adenocarcinoma

Previous studies on shikonin, a chemical derived from the Chinese medicinal herb had anti-tumor effects although it was found to be toxic.

20 Apr 2009

Discovery of nine new genes on X chromosome that, when knocked-out, lead to learning disabilities

The international team studied almost all X chromosome genes in 208 families with learning disabilities - the largest screen of this type ever reported.

20 Apr 2009

Oral contraceptives impair muscle mass gains in young women

Many active young women use oral contraceptives (OC) yet its effect on their body composition and exercise performance has not been thoroughly studied.

20 Apr 2009

Fish oil protects against neurodegenerative diseases

Dr. Nicolas Bazan, Director of the Neuroscience Center of Excellence, Boyd Professor, and Ernest C. and Yvette C. Villere Chair of Retinal Degenerative Diseases Research at LSU Health Sciences Center New Orleans, will present new research findings showing that an omega three fatty acid in the diet protects brain cells by preventing the misfolding of a protein resulting from a gene mutation in neurodegenerative diseases like Parkinson's and Huntington's.

20 Apr 2009

Research shows how p53 mutations link to high-grade breast cancer, poor outcomes

In what is believed to be the largest study of its kind in the US, researchers have found that almost 26 percent of women studied who have breast cancer have mutations in a gene important in controlling cell growth and death, and that patients with mutations in this gene - known as p53 - had poorer outcomes including a significantly increased risk of death from the cancer.

20 Apr 2009

Key genetic mechanism a potential key to new class of antibiotics

Researchers have determined the structure of a key genetic mechanism at work in bacteria, including some that are deadly to humans, in an important step toward the design of a new class of antibiotics, according to an accelerated publication that appeared online today as a "paper of the week" in the Journal of Biological Chemistry.

20 Apr 2009

Coffee, caffeine and amyotrophic lateral sclerosis

Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages key neurons in the brain and spinal cord.

20 Apr 2009

Brain metastases hijack neuron-supporting cells to resist chemotherapy

Cancer that spreads to other organs finds a particularly inviting hideout in the brain, where these metastases are usually far harder to treat than they are in other locations.

20 Apr 2009

Computational model examines the pathways of Alzheimer's that strikes at the young

Alzheimer's disease (AD) is a tragic disease that robs an individual of their memory and mental capacity.

20 Apr 2009

Addition of dasatinib to standard chemo cocktail may enhance effect in certain ovarian cancers

The addition of a chemotherapeutic drug for leukemia to a standard regimen of two other chemotherapy drugs appears to enhance the response of certain ovarian cancers to treatment, according to a pre-clinical study led by researchers in the Duke Comprehensive Cancer Center.

20 Apr 2009

A potential therapeutic target for gastric cancer

Gastric cancer (GC) is the fourth most common malignancy and the second most frequent cause of cancer-related death in the world.

20 Apr 2009

Young women on the pill suffer impaired muscle gains from weight lifting

According to American researchers women who take oral contraceptives (OC) could find any muscle which might be gained from resistance exercise training is impaired.

20 Apr 2009

Scientists uncover secrets of salmonella's stealth attack

A single crafty protein allows the deadly bacterium Salmonella enterica to both invade cells lining the intestine and hijack cellular functions to avoid destruction, Yale researchers report in the April 17 issue of the journal Cell.

16 Apr 2009

Vegan nuns found to have same bone density as non-vegans

A study comparing the bone health of 105 post-menopausal vegan Buddhist nuns and 105 non-vegetarian women, matched in every other physical respect, has produced a surprising result.

16 Apr 2009

Move over, Y chromosome - it's time X got some attention

In the first evolutionary study of the chromosome associated with being female, University of California, Berkeley, biologist Doris Bachtrog and her colleagues show that the history of the X chromosome is every bit as interesting as the much-studied, male-determining Y chromosome, and offers important clues to the origins and benefits of sexual reproduction.

16 Apr 2009

Survival mode that protects cells when oxygen is low also slows aging

A biochemical pathway that helps keep cells alive when oxygen is low also plays a role in longevity and resistance against some diseases of old age, according to a report to be published April 16 in the journal Science.

16 Apr 2009