Genetic News and Research

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Exercise good for those brain cells

According to Swedish researchers exercise may stimulate the production of new brain cells in the area of the brain that is important to memory and learning.

2 Jul 2007

Understanding the human journey

In the first scientific publication from The Genographic Project, a five-year effort to understand the human journey, we see the first attempts to answer these age-old questions.

29 Jun 2007

Sensing and following motion

Researchers at the University of Pennsylvania have shed new light on how the brain and eye team up to spot an object in motion and follow it, a classic question of human motor control.

29 Jun 2007

RNA molecules can orchestrate gene activity across vast portions of the human genome

Large, seemingly useless pieces of RNA - a molecule originally considered only a lowly messenger for DNA - play an important role in letting cells know where they are in the body and what they are supposed to become, researchers at Stanford University School of Medicine have discovered.

29 Jun 2007

Five distinct subtypes of alcoholism identified

Analyses of a national sample of individuals with alcohol dependence (alcoholism) reveal five distinct subtypes of the disease, according to a new study by scientists at the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health (NIH).

29 Jun 2007

New drug resistance screening method

A growing number of drug-resistant strains of HIV are a threat to the effectiveness of current treatments despite anti-HIV drug cocktails decreasing the number of HIV-related deaths and improving the quality of life for HIV patients.

29 Jun 2007

Link between ciliary signaling and cancer

Submarines have periscopes. Insects have antennae. And increasingly, biologists are finding that most normal vertebrate cells have cilia, small hair-like structures that protrude like antennae into the surrounding environment to detect signals that control cell growth.

29 Jun 2007

Exercise stimulates the production of new brain cells

Exercise has a similar effect to antidepressants on depression. This has been shown by previous research. Now Astrid Bjornebekk at Karolinska Institutet has explained how this can happen: exercise stimulates the production of new brain cells.

29 Jun 2007

Protein ATM prevents DNA damage from persisting through generations

A protein long known to be involved in protecting a cell from genetic damage has been found to play an even more important role in protecting the cell's offspring.

29 Jun 2007

Support for chromosomal theory of cancer found in cancers' development of drug resistance

Thirty-six years into the war on cancer, scientists have not only failed to come up with a cure, but most of the newer drugs suffer from the same problems as those available in the pre-war days: serious toxicity, limited effectiveness and eventual resistance.

28 Jun 2007

New type of mouse embryonic stem cell discovered

Scientists have discovered a new type of mouse embryonic stem cell that is the closest counterpart yet to human embryonic stem (ES) cells, the National Institutes of Health (NIH) have announced.

28 Jun 2007

Scientists discover role of ataxia telangiectasia mutated protein in DNA repair

Scientists from the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Cancer Institute (NCI), and Integrative Bioinformatics Inc. have made an important discovery about the role of an enzyme called ataxia telangiectasia mutated protein (ATM) in the body's ability to repair damaged DNA.

28 Jun 2007

Web-based software program helps predict survivability for some cancer patients

Oregon Health & Science University Cancer Institute researchers have developed a Web-based software program that can help head and neck cancer patients better predict their survivability.

28 Jun 2007

New genetic test advances detection and diagnosis of muscular dystrophy

A new genetic test targeting the most common types of muscular dystrophy--those caused by mutations in the dystrophin gene--is far quicker with greater accuracy and sensitivity than existing tests.

28 Jun 2007

Men and women with multiple sclerosis equally transmit the genetic risk of the disease to their children

The research contradicts the results of a recent study, which found affected fathers were more likely than affected mothers to transmit the risk of developing MS to their children.

28 Jun 2007

Training autistic brains to recognize visual and vocal cues

To understand the meaning of a conversation, kids automatically do what adults do - besides processing the meaning of words, they unconsciously "read" the expression on a person's face and listen to their tone of voice, then integrate that information with the context at hand to discern meaning, be it humor, anger, irony or straightforwardness.

28 Jun 2007

Thousands of children and teens diagnosed with diabetes each year in the U.S.

According to a major national study, as many as 15,000 children and adolescents in the United States are diagnosed with type 1 diabetes, and about 3,700 youth are diagnosed with type 2 diabetes each year.

27 Jun 2007

Role of environmental factors in the development of Parkinson's disease

Scientists at the Buck Institute for Age Research have shown that combining two environmental toxic substances accelerated age-related degeneration in neurons associated with Parkinson's disease (PD) in mice.

27 Jun 2007

New insight into the mechanism by which glial cells recognize and myelinate axons

In a host of neurological diseases, including multiple sclerosis (MS) and several neuropathies, the protective covering surrounding the nerves - an insulating material called myelin - is damaged.

27 Jun 2007

Gene variant increases risk for alcoholism following childhood abuse

Girls who suffered childhood sexual abuse are more likely to develop alcoholism later in life if they possess a particular variant of a gene involved in the body's response to stress, according to a new study led by researchers at the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health (NIH).

27 Jun 2007