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Older adults’ abstract reasoning ability predicts depressive symptoms over time

Credit: CC0 Public Domain Age-related declines in abstract reasoning ability predict increasing depressive symptoms in subsequent years, according to data from a longitudinal study of older adults in Scotland. The research is published in Psychological Science, a journal of the Association for Psychological Science. “Mental health in later life is a topic of increasing importance ..
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Researchers find inhibiting one protein destroys toxic clumps seen in Parkinson’s disease

Immunohistochemistry for alpha-synuclein showing positive staining (brown) of an intraneural Lewy-body in the Substantia nigra in Parkinson’s disease. Credit: Wikipedia A defining feature of Parkinson’s disease is the clumps of alpha-synuclein protein that accumulate in the brain’s motor control area, destroying dopamine-producing neurons. Natural processes can’t clear these clusters, known as Lewy bodies, and no ..
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Surgery, not antibiotics, should remain first-line treatment for appendicitis: study

Credit: CC0 Public Domain Treating appendicitis with antibiotics as an alternative to surgical removal of the inflamed organ was found to be more costly in the long term and result in higher rates of hospital readmissions, according to a study by researchers at the Stanford University School of Medicine. “People treated with antibiotics alone have ..
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New research has revealed we are actually better at remembering names than faces

Credit: George Hodan/public domain With the Christmas party season fast approaching, there will be plenty of opportunity to re-live the familiar, and excruciatingly-awkward, social situation of not being able to remember an acquaintance’s name. This cringe-worthy experience leads many of us to believe we are terrible at remembering names. However, new research has revealed this ..
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Scientists illuminate causes of hepatitis B virus-associated acute liver failure

Hepatitis B core antigen (arrow head) on the cellular membrane in cells transfected with hepatitis B virus. The virus is derived from a patient with acute liver failure. Credit: NIAID National Institutes of Health scientists and their collaborators found that hepatitis B virus (HBV)-associated acute liver failure (ALF)—a rare condition that can turn fatal within ..
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Exercise makes even the ‘still overweight’ healthier: study

(HealthDay)—Heavyset folks who exercise regularly shouldn’t get discouraged if they can’t seem to shed more weight, no matter how hard they try. A new study suggests that their regular workouts are still contributing to better overall heart health, making them “fat but fit” and helping them live longer. People who are obese-but-fit have lower resting ..
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Brain changes found in self-injuring teen girls

Highlighted areas show brain regions where researchers saw reductions in brain volume in girls who self-injure. Credit: The Ohio State University The brains of teenage girls who engage in serious forms of self-harm, including cutting, show features similar to those seen in adults with borderline personality disorder, a severe and hard-to-treat mental illness, a new ..
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Heart failure patients shouldn’t stop meds even if condition improves: study

(HealthDay)—There’s bad news for heart failure patients with dilated cardiomyopathy who’d like to stop taking their meds. Any progress they’ve seen on medication is likely to fade once they stop taking their heart drugs, new clinical trial results show. About 40 percent of a small group of patients wound up back on their medications after ..
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Scientists solve century-old neuroscience mystery—answers may lead to epilepsy treatment

A research team led by Harald Sontheimer (right), a professor at the Virginia Tech Carilion Research Institute, has discovered mysterious brain structures called perineuronal nets help modulate electrical impulse activity in the brain. The team, which include first author and postdoctoral fellow Bhanu Tewari (left), may be able to target the nets to treat some ..
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Researchers find new pathway to regulate immune response, control diseases

Non-coding RNA (ncRNA) regulates cytokines expression, immune response, and inflammation. Credit: University of Texas at Arlington Researchers at The University of Texas at Arlington have found a potential new pathway to regulate immune response and potentially control inflammatory diseases of the central nervous system such as meningitis and sepsis. “We need to know what turns ..
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Alzheimer’s and cardiovascular disease share common genetics in some patients

Credit: CC0 Public Domain Genetics may predispose some people to both Alzheimer’s disease and high levels of blood lipids such as cholesterol, a common feature of cardiovascular disease, according to a new study by an international team of researchers led by scientists at UC San Francisco and Washington University School of Medicine in St. Louis. ..
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Cellphone technology developed to detect HIV

HIV infecting a human cell. Credit: NIH The management of human immunodeficiency virus 1 (HIV), an autoimmune disorder that cripples the immune system by attacking healthy cells, remains a major global health challenge in developing countries that lack infrastructure and trained medical professionals. Investigators from Brigham and Women’s Hospital have designed a portable and affordable ..
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