Difference between revisions of "Norepinephrine"
Aziraphale (talk | contribs) (categorize) |
(Cat on a Hot Tin Hitler) |
||
| Line 1: | Line 1: | ||
| − | '''Norepinephrine''' (chemical name C<sub>8</sub>H<sub>11</sub>NO<sub>3</sub>)is a catecholamine present in the human brain, sometimes referred to as noradrenaline. Norepinephrine acts as a [[hormone]] when it is released from the [[adrenal gland]]s into the bloodstream. In concert with [[epinephrine]], norepinephrine influences the [[fight or flight]] response by increasing heart rate and muscle readiness, and increasing energy by causing [[glucose]] release, | + | '''Norepinephrine''' (chemical name C<sub>8</sub>H<sub>11</sub>NO<sub>3</sub>) is a catecholamine present in the human brain, sometimes referred to as noradrenaline. Norepinephrine acts as a [[hormone]] when it is released from the [[adrenal gland]]s into the bloodstream. In concert with [[epinephrine]], norepinephrine influences the [[fight or flight]] response by increasing heart rate and muscle readiness, and increasing energy by causing [[glucose]] release. Thus, it heightens readiness to respond to a stressful event. |
Norepinephrine also acts as a [[neurotransmitter]] in the [[central nervous system]] and [[sympathetic nervous system]]. It influences alertness and arousal, and lower levels are associated with [[depression|depressed mood]]. Many [[antidepressant]] medications cause increased norepinephrine levels in the brain. Drugs that increase norepinephrine are also used in the treatment of [[Attention Deficit Hyperactivity Disorder]] and [[hypotension]] (low blood pressure). | Norepinephrine also acts as a [[neurotransmitter]] in the [[central nervous system]] and [[sympathetic nervous system]]. It influences alertness and arousal, and lower levels are associated with [[depression|depressed mood]]. Many [[antidepressant]] medications cause increased norepinephrine levels in the brain. Drugs that increase norepinephrine are also used in the treatment of [[Attention Deficit Hyperactivity Disorder]] and [[hypotension]] (low blood pressure). | ||
[[category:neuroscience]] | [[category:neuroscience]] | ||
Revision as of 00:55, November 29, 2008
Norepinephrine (chemical name C8H11NO3) is a catecholamine present in the human brain, sometimes referred to as noradrenaline. Norepinephrine acts as a hormone when it is released from the adrenal glands into the bloodstream. In concert with epinephrine, norepinephrine influences the fight or flight response by increasing heart rate and muscle readiness, and increasing energy by causing glucose release. Thus, it heightens readiness to respond to a stressful event.
Norepinephrine also acts as a neurotransmitter in the central nervous system and sympathetic nervous system. It influences alertness and arousal, and lower levels are associated with depressed mood. Many antidepressant medications cause increased norepinephrine levels in the brain. Drugs that increase norepinephrine are also used in the treatment of Attention Deficit Hyperactivity Disorder and hypotension (low blood pressure).