What does Dopamine do

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Dopamine is used for treating shock and low blood pressure due to heart attack, trauma, infections, surgery, and other causes. It is also used to help improve heart function when it is unable to pump enough blood. Thank you for using ChaCha! [ Source: http://www.chacha.com/question/what-does-dopamine-do ]
More Answers to “What does Dopamine do
Dopamine is used to treat shock and low blood pressure due to heart attacks, trauma, infections and surgery. It also helps improve heart function.
Dopamine is an important signal that certain parts of the brain use to regulate movement. If you don’t have dopamine in those brain regions, you develop Parkinson’s disease. But it’s also apparently used to send a signal that something impo…
Dopamine is used for treating shock and low blood pressure due to heart attack, trauma, infections, surgery, and other causes. It is also used to help improve heart function when it is unable to pump enough blood. Thank you for using ChaCha…

Related Questions Answered on Y!Answers

How does alcohol affect the release of dopamine in the reward system?
Q: I know that cocaine prevents the reuptake of dopamine, and meth does, too, as well as increasing the release of dopamine. But what does alcohol do? I can’t seem to find a website that says.
A: Alcohol appears to inhibit the release of dopamine in the reward system. The drugs you mention do, as you say, block the re-uptake of dopamine and keep it available in the system longer. It is produced from from those parts of the limbic system responsible for reacting to emotional and physical stimuli; as you said, in the reward system. When more of these receptor re-uptake sites become unavailable because of all this blocking, (some drugs wiping out a great number each time) more of those chemical stimuli are required to get to a similar level as the original really good one. Dopamine controls drive, motivation, energy, and it can cause intense focus, concentration and interest in whatever the attention is turned to for as long as it is present. It affects the more basic pleasure centres of our brain, since it releases the excitor neurotransmitters that get us charged up and heighten our senses. Without it we’d be really blaaaahh and lethargic. I only mention all that as it is pertinent to its interaction with alcohol.When combined with alcohol, dopamine “loses its edge” somewhat, as alcohol inhibits the activity in the post-synaptic neurons, preventing them from giving up their load, which would, given the right stimuli, release large amounts of dopamine into the system.Alcohol does not combine well with what the central nervous system has geared up to dol. Dopamine excites to action, but alcohol ends up inhibiting it, which completely alters the effects dopamine would normally produce. Alcohol also uses a different set of hormonal neurotransmitters, which have an impact on a different set of emotional triggers in the reward network. Alcohol, nicotine, heroin, ecstasy MDMA, mushrooms, LSD and DMT work on serotonin rather than dopamine, producing vastly differing results and effects. If dopaminehas already put the central nervous system into high gear by being present in the system before the alcohol is introduced, the alcohol may not turn off the dopamine exactly, but it does change the chemical dynamic downward. Not only do these chemicals mediate the more obvious emotions of anger/joy/anxiety/love……. they also conduct the orchestra, so to speak, when there are any behavioural anomalies, including many addictions presenting in a remarkable number of ways.Although there have been studies done to determine the effect alcohol has on both dopamine production and its re-uptake, using positron emission tomography scans (PET scans) so far little evidence has been found that alcohol measurably affects dopamine levels. Those tests, however, were done using differing criteria than those I cited.Due to a miriad of reasons, many people have slightly or considerably “off” brain chemistry, affecting every area of their physical and mental lives. Interestingly, contrary to the imression given on commercials promoting anti depressants, there is no way of measuring levels of these electro-chemical hormonal messengers we call neurotransmitters in a living person, so there is no known “balanced guideline” to go by, as many suggest. Hmmmm.I don’t know if this helps at all; hope it does a bit. I tend to get a tad carried away sometimes. I never know if someone is interested in the why and how of it all, or just want the facts, ma’am. DAMN this is long, and I deleted 6 paragraphs, too…
What is dopamine and what does it do in the body? 10pts best answer?
Q: What is dopamine? What does it do in the body?
A: Wow, Eli’s answers is full of information, but doesn’t cover dopamine’s functions as a neurotransmitter, which are very important.Dopamine signals pleasure, arousal, concentration and is at the base of the “reward” system, by which our brain determines if an action has had good results and should be repeated as an habit. This function is responsible for addiction, as drugs who increase the effect of dopamine send false reward signals. ADD is caused by a lack of dopamine, resulting in a lack of concentration, while too much results in schizophrenia.It also has a role in motricity, sending out orders to the muscles. It’s most noticeable when that function fails, as in Parkingson’s disease.
What does increasing dopamine levels do to the human body?
Q: Sinemet CR increases dopamine levels in the brain, and I was just wondering…what does this do??
A: Sinemet is used in the treatment of Parkinson’s Disease (PD), which is a movement disorder which causes slowness of movement (bradykinesia), as well as rigidity, a resting tremor, and postural instability. PD is caused by a lack of dopamine production from a group of neurons in a part of the brain called the substantia nigra. This disrupts a complicated neural network that regulates movement, leading to the symptoms of the disease. Because the primary chemical imbalance causing PD is a lack of dopamine, Sinemet is used to replace the depleted dopamine supplies and allow those with PD to have more normal movement. Everything in the brain is a balance, though. What I mean by that is that there is a “right” amount of each neurotransmitter. So, not only can too little of a given neurotransmitter, such as dopamine, cause problems, but too much can also cause problems. You can see evidence of this when those with PD are over-medicated. Rather than the rigidity and slowness of movement caused by decreased dopamine, they can have writhing, uncoordinated movements (choreiform movements). Excess dopamine has also been identified in many psychotic disorders. The point of this somewhat rambling paragraph is that increased dopamine is only helpful if there is a decreased supply to start with. Hope that’s helpful.
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