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British Journal of Dermatology publishes data on DermTech's new genomic assay for melanoma

DermTech International, a biotechnology company dedicated to bringing genomic medicine to dermatologists, today announced that the discovery data on its new genomic assay for melanoma have been published in the British Journal of Dermatology.

7 Feb 2011

Genomic study identifies link between Native American ancestry, relapse in young leukemia patients

The first genome-wide study to demonstrate an inherited genetic basis for racial and ethnic disparities in cancer survival linked Native American ancestry with an increased risk of relapse in young leukemia patients. The work was done by investigators at St. Jude Children's Research Hospital and the Children's Oncology Group.

6 Feb 2011

Wood smoke may create adverse health effects in humans

With millions of people warding off winter's chill with blazing fireplaces and wood-burning stoves, scientists are raising red flags about the potential health effects of the smoke released from burning wood. Their study, published in the American Chemical Society's journal, Chemical Research in Toxicology, found that the invisible particles inhaled into the lungs from wood smoke may have several adverse health effects.

6 Feb 2011

Researchers describe the complete genome of Daphnia

From an environmental perspective, Daphnia pulex -- the waterflea - is the best-studied organism on the planet. Scientists know how this species responds to pollution, predators, day and night, making it an important model for ecological and evolutionary research. Its genome, however, remained elusive, limiting understanding of how the environment and genes interact.

5 Feb 2011

Researchers find RIPs remain active, continue to produce new insertions in human genome

An ambitious hunt by Johns Hopkins scientists for actively "jumping genes" in humans has yielded compelling new evidence that the genome, anything but static, contains numerous pesky mobile elements that may help to explain why people have such a variety of physical traits and disease risks.

5 Feb 2011

Researchers trace scent signals from nose to higher centers of mouse brain

Mice know fear. And they know to fear the scent of a predator. But how do their brains quickly figure out with a sniff that a cat is nearby?

5 Feb 2011

Lack of DOT1L enzyme could lead to some types of heart disease: Study

Everyone knows chocolate is critical to a happy Valentine's Day. Now scientists are one step closer to knowing what makes a heart happy the rest of the year.

5 Feb 2011

Scientists discover how stressed cells boost thrombin production

In our not-so-distant evolutionary past, stress often meant imminent danger, and the risk of blood loss, so part of our body's stress response is to stock-pile blood-clotting factors. Scientists in the Molecular Medicine Partnership Unit, a collaboration between the European Molecular Biology Laboratory in Heidelberg, Germany, and the University of Heidelberg Medical Centre, have discovered how stressed cells boost the production of the key blood-clotting factor, thrombin.

4 Feb 2011

Lampreys may have dual immune defense system similar to that of humans

Biologists have discovered that primitive, predatory lampreys have structures within their gills that play the same role as the thymus, the organ where immune cells called T cells develop in mammals, birds and fish.

4 Feb 2011

Scientists discover how stressed cells boost production of key blood-clotting factor, thrombin

Scientists in a collaboration between EMBL Heidelberg and the University of Heidelberg Medical Centre have discovered how stressed cells boost the production of the key blood-clotting factor, thrombin. Their work, published today in Molecular Cell, shows how cancer cells may be taking advantage of this process, and opens new possibilities for fighting back against cancer and septicaemia.

4 Feb 2011

Method to comprehensively characterize human embryonic stem cell lines and iPS cell lines

Ever since researchers devised a recipe for turning adult cells into cells that look and act like embryonic stem cells, there has been lingering doubt in the field about just how close to embryonic stem cells each of those cell lines really is at a molecular and functional level. Now, researchers reporting in the February 4th issue of the journal Cell, a Cell Press publication, have developed a systematic way to lay those doubts about quality to rest.

4 Feb 2011

Research unmasks long sought stem cell origin of carcinoma

A constellation of different stem cell populations within our skin help it to cope with normal wear and tear. By constantly proliferating, the stem cells allow skin to replenish itself, allowing each cell to be replaced by a new one about once a month. But the normal cycle of division and death within one or more of these stem cell types can sometimes be derailed by genetic mishaps. Such events are believed to spawn carcinomas and other deadly skin cancers, which are the mostly frequently diagnosed cancers in the United States.

4 Feb 2011

Scientists reprogram marrow cells from patient with chronic myeloid leukemia

By coaxing healthy and diseased human bone marrow to become embryonic-like stem cells, a team of Wisconsin scientists has laid the groundwork for observing the onset of the blood cancer leukemia in the laboratory dish.

4 Feb 2011

UM researchers find genetic cause of retinitis pigmentosa

Researchers led by geneticists at the University of Miami Miller School of Medicine have identified a new gene that causes retinitis pigmentosa, a form of blindness, ending one South Florida family's nearly 20-year search for what caused three of their four children to lose their sight.

4 Feb 2011

Cell signaling hormone boosts immune response to clear HIV-like infection

Australian scientists have successfully cleared a HIV-like infection from mice by boosting the function of cells vital to the immune response.

4 Feb 2011

New study provides insight into mechanism behind breast cancer mutation

A new study sheds light on why individuals who inherit a particular family of mutations have a high risk of developing a very aggressive form of breast cancer. The research, published by Cell Press on February 4th in the journal Cell Stem Cell, shows that breast tissue cells from these individuals make abnormal cell-fate decisions even before cancer develops and provides exciting new insights into the mechanisms behind one of the most lethal types of breast cancer.

4 Feb 2011

Women's risk of getting breast cancer increases from one in nine to one in eight

The lifetime risk of getting breast cancer has risen from one woman in nine to one in eight - according to Cancer Research UK.

4 Feb 2011

Genetic component to Parkinson’s disease discovered

Parkinson’s disease, a severely degenerative disease of the brain leading to tremors, muscle rigidity and finally immobility was until the 1990’s believed to be due to environmental factors, lifestyle and a person’s age. However, now scientists have discovered five more genes that influence its development.

3 Feb 2011

Generation of iPSCs can be enhanced by modulating miRNA action

Stem cells are ideal tools to understand disease and develop new treatments; however, they can be difficult to obtain in necessary quantities. In particular, generating induced pluripotent stem (iPS) cells can be an arduous task because reprogramming differentiated adult skin cells into iPS cells requires many steps and the efficiency is very low - researchers might end up with only a few iPS cells even if they started with a million skin cells.

3 Feb 2011

International scientist team identifies gene mutation strongly linked to schizophrenia

In a major advance for schizophrenia research, an international team of scientists, led by Jonathan Sebat, PhD, assistant professor of psychiatry and cellular and molecular medicine at the University of California, San Diego School of Medicine, has identified a gene mutation strongly linked to the brain disorder - and a signaling pathway that may be treatable with existing compounds.

3 Feb 2011