Genome-wide Association Analyses Identify 95 Risk Loci And Provide Insights Into The Neurobiology Of Post-traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) is a mental health condition that can develop after experiencing a traumatic event. It’s characterized by symptoms like intrusive thoughts, heightened arousal, avoiding reminders of the trauma, and negative changes in mood and thinking. For some individuals, these symptoms persist long after the traumatic experience has ended, significantly impacting their quality […]

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Alcohol Use Polygenic Risk Score, Social Support, and Alcohol Use among European American and African American Adults

Alcohol consumption is impacted by a combination of genetic predispositions and environmental influences. We investigated how genome-wide polygenic risk scores for alcohol use (alc-PRS) interact with the level of social support among individuals of European American (EA) and African American (AA) descent, across various age groups ranging from emerging adulthood to middle adulthood. Our analysis […]

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Predictors of Risk and Resilience for Future Alcohol Problems Associated with a Low Level of Response to Alcohol

Researchers investigated future prevention protocols for reducing heavy drinking and alcohol-related issues in individuals with a low response to alcohol, a genetically influenced risk factor for recurring alcohol problems. Recent research has shown that addressing factors such as associating with heavy drinking peers, holding inaccurate beliefs about the benefits of heavy drinking, and using alcohol […]

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The Collaborative Study On The Genetics Of Alcoholism: Functional Genomics.

The Collaborative Study on the Genetics of Alcoholism (COGA) has been exploring these elements and has identified potential genes associated with the risk of Alcohol Use Disorder (AUD) through comprehensive genetic studies. In this fifth section, COGA continues with its investigation, by further diving into how genetics affect the body’s function in the context of AUD. COGA […]

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The Collaborative Study on the Genetics of Alcoholism: Brain Function

Alcohol use disorder and its related health problems come from a mix of genes, brain activity, and environment, affecting people differently as they grow. In this section, COGA has looked at how the brain works in relation to alcohol use risks and problems. They use brain tests and family info to separate the risks linked […]

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The Collaborative Study On The Genetics Of Alcoholism: Sample and Clinical Data

This article offers an overview of the methodologies offered in collecting data for the COGA study and also dives into the characteristics of the study sample and clinical information. This is a second installment of a 5 paper series.  The Collaborative Study on the Genetics of Alcoholism (COGA) is a comprehensive multidisciplinary research initiative aimed at […]

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Multivariate Genome-wide Association Meta-analysis Of Over 1 Million Subjects Identifies Loci Underlying Multiple Substance Use Disorders

This comprehensive study investigates the genetic factors contributing to substance use disorders (SUDs), including alcohol, tobacco, cannabis, and opioid use. It encompasses a vast dataset with over a million participants, representing diverse populations.    Researchers took several steps to investigate the genetic factors associated with substance use disorders (SUDs). First, they categorized the effects of […]

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The Amyloid Precursor Protein Modulates the Position and Length of the Axon Initial Segment

This study delves into the complex involvement of the amyloid precursor protein (APP) in Alzheimer’s disease (AD). While APP is primarily known for its connection to the production of β-amyloid (Aβ) peptides, a characteristic of AD brains, this research uncovers a different facet of its functionality. It reveals a unique link between APP and neuronal […]

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Alcohol Reverses The Effects Of KCNJ6 (GIRK2) Noncoding Variants On Excitability Of Human Glutamatergic Neurons

Researchers focused on variations within the KCNJ6 gene, which encodes the GIRK2 protein responsible for regulating cell excitability, including responses to alcohol. To investigate this further, the study utilizes a human neuron model system, including individuals with the ERO-associated allelic variant in KCNJ6 and diagnosed alcohol dependence, as well as those without the variant and unaffected […]

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Specific Diagnostic Criteria Identify Those At High Risk For Progression From ‘Preaddiction’ To Severe Alcohol Use Disorder

This study examined the diagnostic criteria for alcohol use disorder (AUD), emphasizing the need for a more nuanced approach beyond simple criterion counts. Current diagnostic systems, such as the DSM-5, rely on counting the number of criteria met, without considering the heterogeneity among criteria. By analyzing data from a large cohort, the study highlights the importance of […]

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