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Posts Tagged ‘dopamine’

Time (http://tinyurl.com/dopamine-and-decisions 11/27, Cloud) reported that, “by tinkering with levels of dopamine in the brain, researchers were able to influence people’s future decisions in a reliable, predictable way.” In a study of “61 healthy volunteers,” scientists from the Wellcome Trust Center for Neuroimaging at University College London discovered that “when dopamine is present during an imagined event…it still influences how much pleasure the brain will expect from it in the future.”  Most importantly, “the presence of dopamine didn’t make participants feel any happier at the time they took it.”

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In the Wall Street Journal (2/9) Health Blog, Jeanne Whalen wrote that pharmaceutical company AstraZeneca announced Monday that “it’s partnering with the Mayo Clinic and Virginia Tech to work on an experimental class of antidepressants known as triple reuptake inhibitors, or TRIs.” These medications “target three brain chemicals believed to be involved in depression — serotonin, norepinephrine, and dopamine.” Currently antidepressants “target just serotonin, or serotonin and norepinephrine.” According to Christer Köhler, vice president of global discovery research at AstraZeneca, “by adding dopamine to the mix,” pharmaceutical “makers hope to crack certain types of depression that typically don’t respond to” medication “treatment, including melancholic depression.”

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Scientists may be getting closer to understanding the genetic origin of anxiety in certain individuals.  This could lead to potential new medications for the treatment of anxiety.

http://www.upi.com/Health_News/2008/08/11/Genetic_factor_linked_to_anxiety/UPI-54431218492636/

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