A pretreatment PET scan may pave the way past the trial-and-error approach to picking a first-line therapy for major depression, new research hints. Medscape Medical News

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After brief training in mindfulness meditation, specific brain changes that correlate with reduced anxiety are visible on imaging, new research shows. Medscape Medical News

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Patients with certain types of noncancer pain, including back pain, migraine, and psychogenic pain, have been found to have a significantly increased risk for suicide, new research suggests. Medscape Medical News

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Daily cycles of gene expression exist in healthy human brains, but these patterns are disrupted in clinically depressed individuals, new research shows. Medscape Medical News

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Cannabis users who start smoking the drug in adolescence show an irreparable decline in IQ, new research shows. Medscape Medical News

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Psychiatric inpatients are at extreme risk for suicide within 2 weeks of being discharged from hospitalization, but high-quality aftercare may be protective, new research suggests. Medscape Medical News

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High-intensity sunlight appears to be associated with a lower prevalence of ADHD, new research shows. Medscape Medical News

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Antipsychotics with a high binding affinity of alpha-2-adrenergic and M1-muscarinic receptors may increase stroke risk in the elderly — at least in the short term, new research suggests. Medscape Medical News

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Providing Medicare patients who have schizophrenia and bipolar disorder generic drug gap coverage saves money and improves health outcomes, new research shows. Medscape Medical News

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Retinal blood vessel changes may serve as biomarkers for amyloid plaque in the brain, which in turn may signal early stages of Alzheimer’s disease, new research shows. Medscape Medical News

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