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Tag: "norepinephrine" at biology news

Brain networks strengthened by closing ion channels

...eptors are stimulated by a natural brain chemical norepinephrine or by medications like guanfacine. "Guanfacine...Treatments for ADHD all enhance stimulation of the norepinephrine receptors. These new data also have important implications for the researchers' studies of more s...

Stress hormones may play new role in speeding up cancer growth

... was that the two stress hormones ?epinephrine and norepinephrine ?would bind to places on the surface of ovarian ca...e descent. They treated Glaser's cell line with norepinephrine and, as predicted, the cells all produced MMP-2, MMP-9 and VEGF. This showed that the receptors for ...

Research links 'ecstasy' to survival of key movement-related cells in brain

...s of the neurotransmitters serotonin, dopamine and norepinephrine in the brain. This secretion can lead to prolonged periods of activity, hallucinations and euphoria. Before the United States banned it in 1985, MDMA was tested as a possible adjunct in psychotherapy. In 2001, the FDA agreed to allow MDMA to be teste...

Study reveals how ADHD drugs work in brain

...mation and the onset of addictive behaviors, while norepinephrine has been linked with arousal and attentiveness. B...dison team measured concentrations of dopamine and norepinephrine in the three different brain areas, both in the presence and absence of low-dose ADHD stimulants. U...

Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions

Methylphenidate (Ritalin) elevates norepinephrine levels in the brains of rats to help focus attenti...ing rats, is the first to document the increase in norepinephrine and suppression of the neuronal response in this sensory pathway of the brain. "Methylphenidate enha...

Alcoholism, smoking and genetics among Plains American Indians

...an important role in the breakdown of dopamine and norepinephrine in the brain, its activity varying according to a ...nt enzyme and therefore probably more dopamine and norepinephrine in the brain," she said. "The Met allele has also been associated with increased anxiety and neurot...

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