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Molecular switch activates anti-viral innate immune response

When a thief breaks into a bank vault, sensors are activated and the alarm is raised. Cells have their own early-warning system for intruders, and scientists at the European Molecular Biology Laboratory (EMBL) in Grenoble, France, have discovered how a particular protein sounds that alarm when it detects invading viruses.

15 Oct 2011

Functional MRI examines brain activation in individuals with low and high LRs to alcohol

A low level of response (LR) to alcohol reflects at least in part a low brain response to alcohol and carries significant risk for the later development of alcoholism. This study used functional magnetic resonance imaging (fMRI) to examine brain activation in individuals with low and high LRs to alcohol while they performed a cognitive task.

15 Oct 2011

Myths and misconceptions about diabetes

November is designated American Diabetes Month and while raising awareness this month about preventing diabetes is important, focusing on proper treatment is just as important for those living with the disease.

15 Oct 2011

Scientists uncover vast new gene regulatory network linked with cancer

Researchers at Columbia University Medical Center (CUMC) and two other institutions have uncovered a vast new gene regulatory network in mammalian cells that could explain genetic variability in cancer and other diseases.

15 Oct 2011

Penn researchers demonstrate sound-processing deficits in mice brains with mutated dysbindin gene

Recent studies have identified many genes that may put people with schizophrenia at risk for the disease. But, what links genetic differences to changes in altered brain activity in schizophrenia is not clear. Now, three labs at the Perelman School of Medicine at the University of Pennsylvania have come together using electrophysiological, anatomical, and immunohistochemical approaches - along with a unique high-speed imaging technique - to understand how schizophrenia works at the cellular level.

14 Oct 2011

Different molecular mechanisms in suprachiasmatic nucleus linked to jet lag differences

It's no secret that long-distance, west-to-east air travel - Seattle to Paris, for example - can raise havoc with a person's sleep and waking patterns, and that the effects are substantially less pronounced when traveling in the opposite direction.

14 Oct 2011

ESCs express genes linked with early germ cell specification

Ordinarily, embryonic stem cells exist only a day or two as they begin the formation of the embryo itself. Then they are gone. In the laboratory dish, however, they act more like perpetual stem cells - renewing themselves and exhibiting the ability to form cells of almost any type, a status called totipotency.

14 Oct 2011

Grim economic times could cause men to seek more sexual partners

Grim economic times could cause men to seek more sexual partners, giving them more chances to reproduce, according to research by Omri Gillath, a social psychology professor at the University of Kansas.

14 Oct 2011

BCL11A protein might serve as potential target for sickle cell disease

Flipping a single molecular switch can reverse illness in a model of sickle cell disease, according to a study by researchers at Children's Hospital Boston and Dana-Farber Cancer Institute. When turned off, the switch, a protein called BCL11A, allows the body to manufacture red blood cells with an alternate form of hemoglobin unaffected by the mutation that causes the disease.

14 Oct 2011

Scientisits uncover evidence of powerful new cancer genetic networks

In findings with major implications for the genetics of cancer and human health, researchers at Beth Israel Deaconess Medical Center (BIDMC) and two other science teams in New York City and Rome have uncovered evidence of powerful new genetic networks and showed how it may work to drive cancer and normal development.

14 Oct 2011

NIH awards Salk Institute $4.5M to establish new Neuroscience Core Center

The National Institutes of Health has announced that the Salk Institute will receive $4.5 million to establish a Neuroscience Core Center, a new research center intended to accelerate brain research that lays the foundation for developing new ways to treat congenital brain defects and neurological diseases.

14 Oct 2011

Study: miR-34b gene associated with aggressive form of melanoma

A certain microRNA gene, miR-34b, could be a useful biomarker in early diagnosis of the most lethal forms of melanoma, according to new research published by KGI Professor Animesh Ray and his research collaborators.

14 Oct 2011

Limited decision-making ability of individual cells is bolstered in masses

Researchers from Johns Hopkins have quantified the number of possible decisions that an individual cell can make after receiving a cue from its environment, and surprisingly, it's only two.

14 Oct 2011

Scientists reprogram skin cells of patients with mental disorders into brain cells

For many poorly understood mental disorders, such as schizophrenia or autism, scientists have wished they could uncover what goes wrong inside the brain before damage ensues.

13 Oct 2011

New insights into how adenovirus triggers an immune response

A Loyola University Chicago Stritch School of Medicine study could lead to improved gene therapies for conditions such as heart disease and cancer as well as more effective vaccines for tuberculosis, malaria and other diseases.

13 Oct 2011

Study reveals new regulatory elements in human genome

An international research team led by Kerstin Lindblad-Toh at the Broad Institute, US and Uppsala University, Sweden has mapped and compared the genomes of 29 mammals. The findings, published in Nature, reveal millions of new regulatory elements in the human genome that in various ways govern how proteins are formed. The new knowledge is important for our understanding of how mutations in human genes give rise to diseases.

13 Oct 2011

Researchers identify age-dependent beta cell proliferation pathway

As a person ages, the ability of their beta cells to divide and make new beta cells declines. By the time children reach the age of 10 to 12 years, the ability of their insulin-producing cells to replicate greatly diminishes. If these cells, called beta cells, are destroyed-as they are in type 1 diabetes-treatment with the hormone insulin becomes essential to regulate blood glucose levels and get energy from food.

13 Oct 2011

Raw fruits and veggies may offset genetic risk for heart disease: Study

In a new study a team of researchers looked at the genotypes of 27,243 people from two separate studies to see if they had a certain gene variant. Earlier studies including a 2010 meta-analysis in the Journal of the American Medical Assn. found that the 9p21 gene is associated with a higher risk of heart attack and cardiovascular disease.

13 Oct 2011

Skin cell to liver cell shows promise for genetic liver disease

In a new scientific breakthrough, researchers have taken skin cells from a patient with liver disease and turned them into replacement liver cells. Although the procedure is years before it can be used in humans, but if approved, it could launch a new era of personalized therapies for serious genetic disorders.

13 Oct 2011

Scientists sequence complete genome of naked mole rat

Scientists have sequenced the complete genome of the naked mole rat, a pivotal step to understanding the animal's extraordinarily long life and good health. A colony of more than 2,000 naked mole rats at The University of Texas Health Science Center at San Antonio contributed to the findings, published today in the journal Nature.

13 Oct 2011