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Tag: "depression" at biology news

New research questions basic tenet of neuron function

...ical disorders such as mental retardation, autism, depression and epilepsy, all of which have been linked to abnormal neurotransmitter function, said Dr. Kavalali. In neuronal cell cultures, the researchers labeled synaptic vesicles with a fluorescent dye and observed how and when the vesicles released neurotr...

NYC's First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention

...eople put themselves at risk-including undiagnosed depression and poor access to mental health services -- if we are to truly break the chain of infection through effective prevention, testing and treatment efforts." ...

The evolutionary triumph of flower power

...t group was happier ?more smiles and less observed depression ?than those left for last; the two-bouquet folks were happier still. The most profound results appeared when participants were tested for detailed recall of the flowers, booklet decorations and book entries. Flower power again triumphed: Those who re...

Brain May Be Less Plastic Than Hoped

...the animal's retina, centered on the fovea—a small depression in the retina where vision is most acute—and covering the blind spot. They made baseline measurements of the cortical quiet zone two to three hours after the laser surgery and compared them to new readings taken every few weeks for up to seven and a ...

Analysis Of Human Genome To Predict The Development Of Illnesses

... identification of therapeutic targets for cancer, depression and hepatitis. The School of Engineering at Navar...ets (lines of action) for ailments such as cancer, depression and hepatitis. This bioinformatics tool, designed in collaboration with the Centre for Applied Rese...

Depression gene may weaken mood-regulating circuit

...riting the short variant more than doubles risk of depression following life stresses,** boosts amygdala activit...e," an inherited temperament trait associated with depression and anxiety, was explained by how well the mood-regulating circuit was connected. "Until now, it's ...

Taking a flying jump

...ff" sequence, involving stretching of the legs and depression of the wings that can move the fly in a specific direction. Previous studies did not detect directional jumping1, but observations were made in conjunction with non-directional stimuli such as switching lights on and off. Card's results imply that t...

Many smokers fail to quit after cancer diagnosis

... may be contraindicated or co-morbidities, such as depression and/or alcohol use, must be taken into account. Targeted interventions have been designed to combine elements of behavioral therapy and pharmacotherapy, but only a few studies exist assessing their efficacy. Another shortfall is that these studies, w...

Federal grant funds research on novel HIV therapy

...ng innate immune function and reducing symptoms of depression that are associated with the disease. Steven D. Douglas, M.D., professor of Pediatrics, chief of the Section of Immunology and director of Clinical Immunology Laboratories at The Children's Hospital of Philadelphia, is the principal investigator and...

What can change in the brain? Electrical synapses, research shows

...nge we describe here is similar to long-term mGluR depression at chemical synapses," Landisman said. "In both cases, communication between neurons is reduced." The cells Landisman and Connors used in their experiments came from the thalamic reticular nucleus, a thin sheet of neurons that is part of the thalamu...

In SAD patients, autumn antidepressants can prevent winter depression

... during the fall can reduce the risk of developing depression throughout the fall and winter months, reports a s...ttempted to prevent the development of fall-winter depression though pre-emptive treatment with the antidepressant bupropion extended release tablets. One group ...

Men and women differ in brain use during same tasks

...lverstone cited the psychiatric condition of major depression as an example of the psychological differences between men and women, because twice as many women as men have this condition. He added that there are many other psychiatric conditions in which the male and female ratio is not equal or in which males ...

Depression model leaves mice with molecular scar

... scar" in its brain that could help to explain why depression is so difficult to cure, suggest researchers funde...it failed to remove the silencers. A true cure for depression would likely have to target this persistent stress-induced scar, say the researchers, led by Eric Ne...

Animal models show that anabolic steroids flip the adolescent brain's switch for aggression

...ublished, that the serotonin system ?implicated in depression ?may never recover. "If you hit the right areas of the brain at the right time, you make permanent changes," Melloni concludes from the converging evidence. He hopes that adolescents don't take the ultimate recovery of the vasopressin system ...

Environmental tobacco smoke linked to behavior problems in children and pre-teens

...hildren without asthma who "act out" or experience depression and anxiety, according to Kimberly Yolton, Ph.D., a researcher at the Children's Environmental Health Center at Cincinnati Children's and the study's main author The study will be presented at 8:30 a.m. Pacific time Sunday, April 30, at the annual m...

Great (taste) expectations: Study shows brain anticipates taste, shifts gears

...ical psychologist specializing in the treatment of depression and anxiety disorders, the new detailed insights into the power of anticipation could lead to better treatments for such conditions. "The placebo operates through expectancy. In this study, we've taken the pill out of the picture. We're just manipul...

Activation of a protein solidifies fear memory in the brain

... disorders such as post-traumatic stress disorder, depression and drug addiction. "Additionally, the ability to strengthen memories by retrieval has important implications for psychotherapies," she said. ...

Study finds drug may cut down involuntary movements

... sleepiness, but restlessness, slowed movement and depression were also seen in some subjects. Suicide is common in Huntington's disease, and one subject committed suicide during the study. Patients will also need close supervision so that suicide can be prevented." ...

Commonly used antidepressants may also affect human immune system

Drugs that treat depression by manipulating the neurotransmitter serotonin in the brain may also affect the user's immune system in ways that are not yet understood, say scientists from Georgetown University Medical Center and a Canadian research institute. That's because the ...

Study in Science holds promise for a new approach to drug therapy

...iseases including heart disease, cancer, diabetes, depression and arthritis. The study describes a new way to manipulate perhaps the most important signaling mechanism in human cells: G-protein coupled receptors (GPCRs). Human cells must be able to send signals that switch life processes on and off as they rea...

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