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Tag: "mood" at biology news

Revolutionary nanotechnology illuminates brain cells at work

...involved in everything from learning and memory to mood and perception. Too much glutamate is believed to contribute to conditions such as Alzheimer's and Parkinson's disease. The research is published in the May 30-June 3 on-line early edition of the Proceedings of the National Academy of Sciences. "The...

Second messenger NAADP shows fast, dose-related impact on satiety cycle

...- in the brain that controls satiation, as well as mood and body temperature. "More recently, another hormone, cholecystokinin, has been considered to be a potential drug target," Yamasaki noted. Cholecystokinin is a naturally-occurring chemical synthesized both in the small intestine and in the brain whe...

Thinking the pain away? Study shows the brain's painkillers may cause 'placebo effect'

...oung males to rule out the impact of chronic pain, mood disorders and hormone variations, which can also affect the endorphin system. In addition to Zubieta, the research team included MBNI members Joshua Bueller, Lisa Jackson, David Scott and Janyun Xu; radiology professor Robert Koeppe, Ph.D.; Thomas ...

Endocannabinoids ?the brain's cannabis ?demonstrate novel modes of action to stress

...y abused because of the effects it can have on our mood and our social behavior. Cannabis works this way because it acts like substances that are produced inside our brains that are messengers between brain cells. Our work involves trying to understand what these substances, endocannabinoids, are for." S...

Smoking damages key regulatory enzyme in the lung

...acer and MAO A, a subtype of the enzyme crucial to mood regulation and one that breaks down chemical compounds that elevate blood pressure, said the Society of Nuclear Medicine member. In the study, "Comparison of Monoamine Oxidase A in Peripheral Organs in Nonsmokers and Smokers," researchers traced the...

Clocking in Pillow Time without the Pillow

...n't focus on the road. You also gain things: a bad mood and increased risk for diabetes, high blood pressure, and heart problems. Indeed, the effects of sleep deprivation can be so serious that some sleep scientists liken lifetime sleep debt to a heavy backpack: every sleep hour missed adds an extra pound...

Noise And Delays Explain Why Some Genes Oscillate In Activity

...n't focus on the road. You also gain things: a bad mood and increased risk for diabetes, high blood pressure, and heart problems. Indeed, the effects of sleep deprivation can be so serious that some sleep scientists liken lifetime sleep debt to a heavy backpack: every sleep hour missed adds an extra pound...

Do the Europeans turn ill sitting up so late?

... style. This can result in performance decrements, mood disorders, increased accident rates and considerable decrease in the quality of life.Sleep loss may also predispose individuals to conditions such as burn-out and cardiovascular diseases. The EU has granted a 4,4 million Euro funding for this resear...

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

...later in life, but long-term users can suffer from mood swings, hallucinations and paranoia; liver damage; high blood pressure; as well as increased risk of heart disease, stroke and some types of cancer. Withdrawal often brings depression, and recent research suggests that some AASs may even be habit-fo...

Growth hormone is made in the brain, report scientists

...e mass. The scientists suspect that reasoning and mood may also be affected by these differences in the amount of growth hormone in the brain. "Growth hormone has been associated with growth of muscles and bones, and the production of it was believed to lie mainly in the pituitary gland," said co-autho...

Study finds drug may cut down involuntary movements

...d other medications are commonly needed to improve mood and behavior. For those Huntington's disease patients whose function is impaired by chorea, however, tetrabenazine can help activities of daily living, and improve functional capacity," Shannon said. "If the drug is approved, physicians will need...

Mice lacking social memory molecule take bullying in stride

...uit. They also suggest new strategies for treating mood disorders such as depression, social phobia and post-traumatic stress disorder, in which social withdrawal is a prominent symptom. Drs. Olivier Berton and Eric Nestler, University of Texas Southwestern Medical Center (UTSMC), and colleagues, report o...

Psychotropic drug prescriptions for teens surge 250 percent over 7 year period

...ypically prescribed for ADHD, depression and other mood disorders, are approved for use in children under 18. The study is one of the first to focus on prescriptions to adolescents, rather than children in general. The study shows that by 2001, one in every ten of all office visits by teenage boys led ...

Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent

...es, this modulation appears to be concomitant with mood state changes, and taken together, these would app...to the anticipation and experience of the positive mood state changes associated with mirthful laughter." Future research in this area with more subjects "...

New research: Soy germ isoflavones reduce bone loss

...oflavones' effectiveness and key role in improving mood and cognitive function in postmenopausal women. This research strongly points to soy isoflavone supplementation as a natural, effective way to significantly improve the quality of life for postmenopausal women. ...

Test reveals effectiveness of potential Huntington's disease drugs

...nhibitors, are used in epilepsy treatment and as a mood stabilizer, respectively. These three compounds did not significantly protect the cultured cells. However, a drug called memantine, which is used to treat Alzheimer's disease, and riluzole, used in amyotrophic lateral sclerosis, did protect the ce...

Smoking changes brain chemistry

...have been reported for a number of psychiatric and mood disorders, including schizophrenia, dementia and bipolar disorder, as well as in cases of substance abuse, particularly alcohol dependence. Choline concentrations in the ACC were slightly lower in the smokers compared with the nonsmokers, and low...

Ecstasy can harm the brains of first-time users

... regulating a number of mental processes including mood and memory. Research has shown that long-term or heavy ecstasy use can damage these neurons and cause depression, anxiety, confusion, difficulty sleeping and decrease in memory. However, no previous studies have looked at the effects of low doses...

New brain-chemistry differences found in depressed women

...e rostral anterior cingulate, which is involved in mood regulation and the integration of sensations and emotions, women who later responded to antidepressant treatment had far lower mu-opioid responses than women who did not respond to medication. The new findings add the mu-opioid system to the list...

New gene linked to bipolar disorder

...eople in the UK develops bipolar and other related mood disorders. Signs of depression include losing weig... with bipolar disorder may also experience extreme mood highs, overactivity, increased libido, sleeplessness and grandiose delusions....

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