Genetic News and Research

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Genetic defect boosts the chances of becoming addicted to tobacco

A genetic defect, which slows the liver's capacity to clear nicotine from the body, boosts the chances of becoming addicted to tobacco, finds research in Tobacco Control. The effects are particularly strong in new, young smokers, the study shows.

24 Nov 2004

Experimental compound prevents cholesterol gallstone disease

A promising experimental compound prevents cholesterol gallstone disease in mice by stimulating the biochemical pathway that controls bile acid secretion by the liver, according to new studies by Howard Hughes Medical Institute researchers.

23 Nov 2004

Breast conserving therapy safe for hereditary breast cancer

Women with hereditary breast cancer treated with breast conserving therapy appear to have no increased risk for recurrence in the treated breast, according to results from a prospective study published in the January 1, 2005 issue of CANCER, a peer-reviewed journal of the American Cancer Society.

23 Nov 2004

Stem cells' repair skills could be link to cancer

Johns Hopkins researchers say there is growing evidence that stem cells gone awry in their efforts to repair tissue damage could help explain why long-term irritation, such as from alcohol or heartburn, can create a breeding ground for certain cancers.

23 Nov 2004

Discovery of gene mutation in fruit flies that alters sensitivity to crack cocaine

Researchers at the University of California, San Francisco (UCSF) and New York University have discovered a gene mutation in fruit flies that alters sensitivity to crack cocaine and also regulates their internal body clock.

23 Nov 2004

Risk of a blocked vessel stroke increases nearly twofold in young women with a history of stroke

Young women with a family history of stroke in their parents or siblings may be at increased risk for stroke themselves, according to a new report.

23 Nov 2004

Brain imaging shows differences in people at risk for Alzheimer's

Using brain imaging, researchers at Columbia University Medical Center (CUMC) have found clear differences in brain function between healthy people who carry a genetic risk factor for Alzheimer's disease and those who lack the factor.

20 Nov 2004

Research advances understanding of urinary tract infections

Anyone who has ever had a urinary tract infection knows that they can be difficult to fight.

20 Nov 2004

Nearly two-thirds of smokers are not concerned about developing Chronic Obstructive Pulmonary Disease

Nearly two-thirds (64 percent) of smokers are not concerned about developing Chronic Obstructive Pulmonary Disease (COPD), America’s fourth ranking cause of death even though more than half of them (55 percent) experience at least one of the symptoms of COPD a minimum of once a week.

18 Nov 2004

Researchers find mutations in a multifunctional protein cause Parkinsonism

A team of researchers at Mayo Clinic in Jacksonville, Fla. and colleagues in Canada and Germany have discovered a gene and six mutations of it that cause symptoms associated with Parkinson's disease and other neurodegenerative disorders.

18 Nov 2004

New genetic test has proven useful as a prognostic tool for ovarian cancer

The identification of a gene expression profile using microarray technology may help clinicians better determine the prognosis of patients with advanced stage ovarian cancer and may eventually help provide targeted therapies for this hard-to-treat disease, according to a study led by investigators at Beth Israel Deaconess Medical Center (BIDMC).

18 Nov 2004

Gene protects against environmental pollutants and pulmonary emphysema

Researchers at the Johns Hopkins Bloomberg School of Public Health and other institutions have identified a “master gene” in mice that controls the action of 50 other genes whose products protect the lungs against environmental pollutants.

17 Nov 2004

Sequencing of human genetic code promises to usher in a new era of genetic medicine

The ability of molecular biologists to sequence the human genetic code promises to usher in a new era of genetic medicine, but that doesn’t mean science can accurately read personal genetic codes.

16 Nov 2004

Troponin genes offer new insights to familial heart failure

Mutations in the troponin protein complex may be useful for predicting the course of heart failure due to dilated cardiomyopathy and also for guiding treatment and research, according to a new study in the Nov. 16, 2004 issue of the Journal of the American College of Cardiology.

16 Nov 2004

What makes beer taste so darn good to men, but vile to most women?

What makes beer taste so darn good to men, but vile to most women? Some oral sensations are under genetic control and new research suggests that these influences on taste perception could help determine the risk of excess alcohol consumption.

16 Nov 2004

Fluorescent protein tool may speed identification of molecular changes that reveal cells' inner workings

Scientists at Johns Hopkins and the University of Texas Medical Branch have created a new tool that easily reveals when and where a key cellular signal is active.

16 Nov 2004

Brain inflammation is a sign of autism

A new study by scientists at Johns Hopkins shows that brain inflammation is a sign of autism. The findings are reported in the online edition of Annals of Neurology, the scientific journal of the American Neurological Association.

15 Nov 2004

Study clarifies BRCA1 and BRCA2 links with other cancers

The largest population study ever done into the risk of cancer in families that fulfil the criteria for BRCA1 and BRCA2 mutation testing has confirmed that breast and ovarian cancers are the major concerns for geneticists and doctors counselling families.

14 Nov 2004

Discovery of new compounds that may treat mucus build-up associated with cystic fibrosis

Preliminary studies show these compounds improve the flow of mucus through the respiratory tract, allowing airways to clear more quickly and efficiently.

14 Nov 2004

Prenatal alcohol exposure has effects far beyond fetal alcohol syndrome

Numerous studies have documented IQ deficits in children with fetal alcohol syndrome (FAS). Little research, however, has found IQ deficits in children with alcohol-related neurodevelopmental disorder (ARND), who generally exhibit less severe neurobehavioral deficits than children with FAS.

14 Nov 2004