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Dopamine

Dopamine

(Science: drug) a catecholamine neurotransmitter and hormone (153 D), formed by decarboxylation of dehydroxyphenylalanine (dopa). a precursor of adrenaline and noradrenaline.

pharmacologic action: 1. Precursor of norepinephrine 2. Stimulates dopaminergic, alpha and beta-1 adrenergic receptors: 3. Dopaminergic (1-2 mcg/kg per min): cerebral, renal, and mesenteric vasodilation increase urine output 4. Mixed alpha and beta-1 (2-10 mcg/kg per min): increases cardiac ouput with moderate increase systemic vascular resistance 5. Predominantly alpha (


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Beet Root Pigment

... to synthesize and donate methyl groups (CH3) for other processes in the body. These processes include the synthesis of neurotransmitters such as dopamine, serotonin. Methylation is also required for the biosynthesis of melatonin and the electron transport chain constituent coenzyme Q10.

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by jinx25
Mon Oct 08, 2012 2:54 am
 
Forum: General Discussion
Topic: Beet Root Pigment
Replies: 7
Views: 3800

Dopamine Question

increased dopamine does not necessarily mean a person will get high right? I dont know the reasons why though

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by iamzlatan
Thu Oct 04, 2012 8:18 pm
 
Forum: General Discussion
Topic: Dopamine Question
Replies: 0
Views: 692

Neurons, Cocaine, and Shingles

1. While under the influence of cocaine, some users report prolonged feelings of pleasure because dopamine a) reduces the refractory period of neurons b) remains in the synapse longer than normal c) increases the speed of nerve impulse transmission d) diffuses rapidly throughout ...

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by homeworkdisaster
Sun Jun 10, 2012 8:11 pm
 
Forum: Human Biology
Topic: Neurons, Cocaine, and Shingles
Replies: 4
Views: 4351

Nervous system

... side of the body cross over to the other brain hemisphere at the region of the pons. Some other sources, identify the cross over in the medulla. 3.Dopamine and serotonin are neurotransmitters produced by certain neurons in the brain. One effect of dopamine is that it brings about feelings of euphoria ...

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by Catherine89
Sun Feb 05, 2012 7:22 pm
 
Forum: Human Biology
Topic: Nervous system
Replies: 0
Views: 3934

Questions regarding GPCR terminology

well, I'm not expert in this, but in the context of dopamine receptors the explanations should be as follows: co-trafficing is probably translocation of a protein at higher distances (like from ER to cell membrane), while co-translocation I would understand ...

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by JackBean
Sat Jul 30, 2011 6:19 pm
 
Forum: Molecular Biology
Topic: Questions regarding GPCR terminology
Replies: 1
Views: 2547
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