Genetics News and Research

Latest Genetics News and Research

New findings clarify the role of NOD2, a key molecular player in Crohn's Disease

This week, researchers report new findings that clarify the role of NOD2, a key molecular player in Crohn's Disease, in the cellular signaling pathways that control inflammatory responses. NOD2's clinical relevance is clear from the fact that it is encoded by a Crohn's Disease susceptibility gene.

28 Dec 2004

Evolution has been working very hard to produce us humans

The genes that regulate brain development and function evolved much more rapidly in humans than in nonhuman primates and other mammals because of natural selection processes unique to the human lineage. Researchers reported their findings in the cover article of the Dec. 29, 2004, issue of the journal Cell.

28 Dec 2004

Significant advance in understanding the human genome

An Oregon Health & Science University-led development of a technique for identifying control elements that drive the expression of genes in brain cells could unleash the disease-fighting potential of the much-hailed human genome.

28 Dec 2004

New technique for tracking gene regulators

Finding out where gene-regulator proteins bind to DNA and identifying the genes they regulate just got a step easier thanks to a new technique developed by scientists at the U.S. Department of Energy’s Brookhaven National Laboratory.

28 Dec 2004

Does cancer run in families?

If you have a relative with cancer, probably one of the most pressing questions is what your chances are of getting it yourself. In a paper published in PloS Medicine, the premier medical journal freely available online, Laufey Amundadottir and colleagues from deCODE genetics (a company that is using genetics to develop new drug treatments) and Iceland’s National-University Hospital go some way toward answering that question.

28 Dec 2004

FDA go ahead for first of kind genetic lab test

The U.S. Food and Drug Administration (FDA) has approved the marketing of the first laboratory test system that will allow physicians to consider unique genetic information from patients in selecting medications and doses of medications for a wide variety of common conditions such as cardiac disease, psychiatric disease, and cancer.

27 Dec 2004

Discovery shows how embryonic stem cells perform 'quality control' inspections

Biologists at the University of California, San Diego have found a fundamental mechanism used by embryonic stem cells to assure that genetically damaged stem cells do not divide and pass along the damage to daughter stem cells.

26 Dec 2004

Why hair turns grey

Few things about growing older are as inevitable and obvious as "going gray," yet scientists have been unable to explain the precise cause of this usually unwelcome transformation.

23 Dec 2004

Evidence suggests that changes in the bacteria and fungi in the gastrointestinal tract can intensify the immune system's reaction to common allergens

If you want to avoid allergies or asthma, scientists at the University of Michigan Medical School suggest you start paying more attention to what's in your gut.

23 Dec 2004

Somatic hypermutation (SHM) should prove to be extremely useful in directed protein evolution

Fascinated by the efficient way the human immune system generates a rapid response to create a near-infinite variety of antibodies, researchers have "hijacked" that machinery and used it to evolve a new type of fluorescent protein.

23 Dec 2004

Researchers can now inexpensively program the chemical synthesis of entire genes on a single microchip

Devices the size of a pager now have greater capabilities than computers that once occupied an entire room. Similar advances are being made in the emerging field of synthetic biology at the University of Houston, now allowing researchers to inexpensively program the chemical synthesis of entire genes on a single microchip.

23 Dec 2004

Fluorescent colors used to separate cells visually

The latest holiday gifts being offered to the scientific community this season by scientists in the laboratory of Howard Hughes Medical Institute investigator Roger Y. Tsien come in a dazzling variety of hues -- cherry, strawberry, tangerine, tomato, orange, banana and honeydew. The color spectrum would make Pantone proud.

22 Dec 2004

Relatives of lung cancer patients up to 3.5 times greater risk of developing lung cancer

First-degree relatives of lung cancer patients have a 2 to 3.5 times greater risk of developing lung cancer than the general population, and tobacco smoke plays a major role, even among those with a genetic predisposition, according to a study in the December 22/29 issue of JAMA.

22 Dec 2004

Jumping genes help explain immune system's remarkable ability

A team led by Johns Hopkins scientists has found the first clear evidence that the process behind the human immune system's remarkable ability to recognize and respond to a million different proteins might have originated from a family of genes whose only apparent function is to jump around in genetic material.

22 Dec 2004

Turning off cell suicide switch fails to stop prion damage

Researchers knew that prions, the misfolded proteins that cause mad cow disease and other brain disorders, were killing off a class of important brain cells in a transgenic mouse model. But when they found a way to rescue those cells, they were astonished to discover the mice still became sick.

21 Dec 2004

Certain leukemia oncogenes switch on genetic programs that govern self-renewal, a unique stem cell characteristic

Researchers have discovered that specific cancer-causing genes associated with leukemias can transform mature white blood cells into leukemic cells that have all the properties of stem cells.

21 Dec 2004

Mutant gene that starves the brain of serotonin 10 times more prevalent in depressed patients

A mutant gene that starves the brain of serotonin, a mood-regulating chemical messenger, has been discovered and found to be 10 times more prevalent in depressed patients than in control subjects, report researchers funded by the National Institutes of Health’s National Institute of Mental Health (NIMH) and National Heart Lung and Blood Institute (NHLBI).

21 Dec 2004