Add BrightSurf on Google Email

Studies identify DNA regions linked to nicotine dependence

Researchers have identified several genes linked to nicotine dependence, including CHRNA5 and NRXN1, which play a role in regulating communication between nerve cells. These findings could lead to the development of more effective smoking cessation therapies tailored to an individual's genetic traits.

SourceWashU Medicine·JournalHuman Molecular Genetics·DateFeb 14, 2007

Got the time?

Researchers have created a molecular timetable that can accurately determine an animal's body time based on gene expression levels. The study identified 168 genes with high amplitude circadian patterns and organized them into a daily schedule, revealing a highly accurate method for measuring body time.

SourceRIKEN Center for Developmental Biology·JournalProceedings of the National Academy of Sciences·DateAug 12, 2004

GAD2 as a candidate gene for obesity

Researchers found a genetic link between GAD2 variants and obesity. The study suggests that overexpression of the GAD2 gene may increase GABA levels in the hypothalamus, leading to increased orexigenic effects and overeating.

SourcePLOS·JournalPLOS Biology·DateNov 3, 2003

Research reveals how strep bacterium evades immune system

Scientists have discovered how the strep bacterium evades destruction by the human immune system, leading to new research on vaccine candidates and therapy interventions. The study found that GAS becomes more resilient to ingestion and killing by PMNs over time or produces factors that alter normal PMN function.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalProceedings of the National Academy of Sciences·DateJan 27, 2003

University Of Chicago, Hopkins Narrow Search For Inflammatory Bowel Disease Genes: New Study Provides Evidence For Important Gene-Gene Interaction

Researchers at University of Chicago and Johns Hopkins Medical Institutions identify genetic regions on chromosomes 1p, 3q, and 4q that appear to contain genes triggering the onset of inflammatory bowel disease. The study confirms the role of previously localized gene IBD1 in concert with another disease gene on chromosome 1.

SourceUniversity of Chicago Medical Center·JournalProceedings of the National Academy of Sciences·DateJun 23, 1998