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Tag: "antidepressant" at biology news

Swimming with dolphins can alleviate depression

...he natural setting. All participants discontinued antidepressant drugs or psychotherapy at least four weeks before entering the study, and were not allowed to take drugs during the study. Depression scores were measured before the study and at the end of treatment. Although some participants dropped out of the st...

Federal grant funds research on novel HIV therapy

...avior. Because NK-1R antagonists are known to have antidepressant properties, any evidence of reduced anxiety-related behavior in animals may suggest potential important benefits for human HIV patients as well. The grant includes four separate projects. Projects 1 and 2, led by virologist Wen-Zhe Ho, M.D., of Chil...

Gene variation affects tamoxifen's benefit for breast cancer

...se to tamoxifen. Their research has also found the antidepressant drug Paxil can prevent tamoxifen from being activated, while the antidepressant drug Effexor does not. These drugs, selective serotonin reuptake inhibitors or SSRI's, are often use...

In SAD patients, autumn antidepressants can prevent winter depression

...fective disorder (SAD), starting treatment with an antidepressant medication during the fall can reduce the risk of ...r depression though pre-emptive treatment with the antidepressant bupropion extended release tablets. One group of patients was randomly assigned to start treatment ...

Depression model leaves mice with molecular scar

...campus. By activating a compensatory mechanism, an antidepressant temporarily restored the animals' sociability and ...ssed for weeks. However, chronic treatment with an antidepressant (the tricyclic imipramine) restored expression of the gene for brain derived neurotrophic factor (BD...

Mice lacking social memory molecule take bullying in stride

...archers say the study "suggests new directions for antidepressant drug discovery." ...

Nobelist discovers antidepressant protein in mouse brain

... is associated with the main therapeutic action of antidepressant drugs." Since humans and mice with symptoms of...nockout mice were less responsive to serotonin and antidepressant drugs compared to those of control mice, which further implicates p11 in the main action of antidepr...

Suicide risk does not increase when adults start using antidepressants, study finds

...decreases in the weeks after patients start taking antidepressant medication, according to a new study led by Group ... risk of suicidal behavior after starting 10 newer antidepressant medications is less than the risk posed by older medications. These findings challenge a 2004 advi...

Ever-happy mice may hold key to new treatment of depression

...ely lead to the development of a new generation of antidepressant drugs," noted Dr. Debonnel. According to Health Canada and Statistics Canada, approximately 8% of Canadians will suffer from depression at some point in their lifetime. Around 5% of Canadians seek medical advice for depression each year; a figure t...

Prozac's target revealed

...brain is the chief target of the widely prescribed antidepressant Prozac. This discovery might enable a new generation of more specific treatments for depression, with fewer side effects, to be developed. The findings also lay the foundation for many studies of the factors that control how, when, and where new neu...

Melatonin improves mood in winter depression

...am used afternoon melatonin to test if it was more antidepressant than melatonin taken in the morning, which causes phase delays. The researchers randomly assigned 68 SAD patients to one of three treatment groups, taking placebo capsules or melatonin in the morning or afternoon for three weeks. After four years o...

New brain-chemistry differences found in depressed women

...inked to whether or not the patients respond to an antidepressant medication. The study, performed by researcher...tress. The depressed women were then prescribed an antidepressant drug and reported regularly about their depression symptoms for the next ten weeks. Those whose depr...

New insights into autoimmunity and depression

...roups. Some mice were treated with fluoxetine, the antidepressant marketed as Prozac, and some mice were treated with haloperidol, a psychotropic drug used to treat anxiety, addiction, and depression. To determine the effectiveness of each therapy, mice were subjected to repeating the forced swimming, staircase, an...

Gene malfunctions cause schizophrenia, depression symptoms in mice

...ed that the different effects of antipsychotic and antidepressant drugs on the two mutant strains "might provide clues to effective medications for these patient groups. Indeed, these mice could represent a model system to explore novel treatment and preventative strategies for certain symptoms of major mental illn...

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