Try out PMC Labs and tell us what you think. Learn More. Prescription stimulants are often used to treat attention deficit hyperactivity disorder ADHD. Drugs like methylphenidate Ritalin, Concerta , dextroamphetamine Dexedrine , and dextroamphetamine-amphetamine Adderall help people with ADHD feel more focused. However, misuse of stimulants by ADHD and nonaffected individuals has dramatically increased over recent years based on students' misconceptions or simple lack of knowledge of associated risks.
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Polygenic scores are increasingly powerful predictors of educational achievement. It is unclear, however, how sets of polygenic scores, which partly capture environmental effects, perform jointly with sets of environmental measures, which are themselves heritable, in prediction models of educational achievement. Here, for the first time, we systematically investigate gene-environment correlation rGE and interaction GxE in the joint analysis of multiple genome-wide polygenic scores GPS and multiple environmental measures as they predict tested educational achievement EA. We predict EA in a representative sample of 7, year-olds, with 20 GPS for psychiatric, cognitive and anthropometric traits, and 13 environments including life events, home environment, and SES measured earlier in life. Environmental and GPS predictors were modelled, separately and jointly, in penalized regression models with out-of-sample comparisons of prediction accuracy, considering the implications that their interplay had on model performance.






Its mechanism of action in this condition is unknown. GABA-B receptors interact with many biological systems potentially involved in AUD, including transduction pathways and neurotransmitter systems. Preclinical studies have shown that GABA-B receptors are involved in memory storage and retrieval, reward, motivation, mood and anxiety; neuroimaging studies in humans show that baclofen produces region-specific alterations in cerebral activity; GABA-B receptor activation may have neuroprotective effects; baclofen also has anti-inflammatory properties that may be of interest in the context of addiction. However, none of these biological effects fully explain the mechanism of action of baclofen in AUD.
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