Genetic factors play an important role in the intergenerational transmission of alcohol use disorder. Typically, when we think about how genetic risk is passed from generation to generation, we think about the genotypes that children inherit from their parents. Yet, this represents only one potential way that genetic risk may be transmitted in families. This […]
Category: Risk/Protective Factors
Parsing Genetically Influenced Risk Pathways: Genetic Loci Impact Problematic Alcohol Use Via Externalizing and Specific Risk
In this analysis, we parsed the genetic variance of problematic alcohol use (ALCP) into that which is shared with other externalizing traits and that which is not. The genetic correlations for the ALCP-specific variance differ for correlations with ALCP that includes variance which overlaps with externalizing. The ALCP-specific variance is primarily associated with alcohol […]
Alcohol Reverses the Effects of KCNJ6 (GIRK2) Noncoding Variants on Excitability of Human Glutamatergic Neurons
People diagnosed with alcohol use disorder have been studied to identify genes linked with their diagnosis as well as other measurements such as EEG/behavioral tests. Previous work has linked these EEG measurements with variations in and near KCNJ6, a gene encoding a potassium channel protein. To study this, we prepared induced pluripotent stem cells using […]
How Do Our Genes Influence Risk for Alcohol Problems?
Some people are more at risk for developing alcohol problems than others and part of the reason lies in our genes. Researchers are working on finding the specific genes associated with alcohol problems, and then mapping the complex pathways by which these genes influence alcohol use outcomes and interact with the environment. Check out Translational […]
Alcohol Use Disorder, Psychiatric Comorbidities, Marriage and Divorce in a High-risk Sample
Previous studies demonstrate the associations between alcohol use disorders (AUD) and marital outcomes in general population samples, and the associations between AUD and marital outcomes have tangible costs, because a body of work shows links between marriage with better health and well-being. This study made use of data from the Collaborative Study on the […]
Binge and High-Intensity Drinking – Laboratory Assessment and Underlying Risk Factors
Some patterns of alcohol consumption are riskier than others. How rapid consumption of alcohol contributes to the increased risk of alcohol use disorder is unclear. We developed an experiment in which participants were given specific control over how quickly their breath alcohol concentration (BrAC) changes, and then tested for relationships to risky drinking patterns. […]
The Research is In: It’s Nature AND Nurture
Science tells us that both our genes AND our environments shape the likelihood that we will develop problems with alcohol use. Because the COGA study has a wealth of data on both genetics and environments, our investigators are uniquely positioned to explore both simultaneously. See the summaries of a few recent publications to better understand […]
The Importance of Genes When Determining Risk
Alcohol use disorder is genetically influenced, but there’s no one gene that influences risk. We can now measure one’s genetic vulnerability to some common disorders using polygenic risk scores (PRS), which combine the effects of many genes into a single risk score. At the moment, PRS summarize only a small portion of an individual’s […]
Early marriage may lead to unsafe drinking behavior by those with higher genetic risk of alcohol use
A new study led by Rebecca Smith, and Dr. Seung Bin Cho made use of a sample of 937 individuals from the Collaborative Study on the Genetics of Alcoholism (COGA). Their manuscript will be published in a forthcoming issue of Development and Psychopathology and explores the association between marital status and heavy episodic drinking as […]