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1. A neurotransmitter is a chemical that nerve cells use to communicate with each other and with muscles.

2. So the neurotransmitter can hang around longer.

3. Serotonin, a neurotransmitter that regulates well-being, calmness and satiety, can be restored by eating carbohydrates.

4. The first cell releases a chemical called a neurotransmitter into the synaptic gap.

5. The result is that the concentration of neurotransmitters in a synapse increases and the normal actions of the neurotransmitter is enhanced.

6. Many drugs interfere with the reuptake of a neurotransmitter from synapses.

7. Neurotransmitter molecules are contained in tiny bags called vesicles inside the axon tip.

8. These results suggest that caffeine indirectly affects many neurotransmitter systems through its direct effects on adenosine receptors.

9. The neurotransmitter sticks to the receptor molecule, and together they are able to open a pore in the cell membrane.

10. When a neurotransmitter attaches itself outside, the part on the inside changes its shape.

11. A number of different neurotransmitter substances are used in brains.

12. Like thermostats, they constantly adjust such things as neurotransmitter release and receptor sensitivity to compensate for perturbations from the environment.

13. When the right neurotransmitter docks with the appropriate receptor, the physical structure of the receptor molecule changes.

14. An action potential in the presynaptic neuron releases neurotransmitter into the cleft.

15. A neurotransmitter has only a brief stay at its receptor site.

16. In fact[sentencedict.com], variations in several other neurotransmitter systems have been tentatively linked to alcoholism.

17. There are many different types of neurotransmitter, and thus of synapse; different pathways in the brain need their different properties.

18. The neurotransmitter then diffuses across to the postsynaptic neuron, and starts a new action potential in it.

19. Dopamine is an important neurotransmitter.

20. The brain uses it to make the neurotransmitter acetylcholine.

21. A neurotransmitter must be present within the presynaptic neuron.

22. You ever hear of a neurotransmitter called acetylcholine?

23. These neurons secrete dopamine, a neurotransmitter involved in the control of movements.

23. Sentencedict.com is a online sentence dictionary, on which you can find good sentences for a large number of words.

24. Objective: To investigate the change on monoamine neurotransmitter in cerebral tissue and plasm of morphine independence mice with Jiedu Tuoying decoction(JTD).

25. The opening of these channels either directly inhibits a neuron from firing or reduces the amount of neurotransmitter released into the synapse.

26. It appears that chronic caffeine use may cause up-regulation or down-regulation of other neurotransmitter systems as well.

27. Agonists are substances which are so similar to a specific neurotransmitter they can occupy that neurotransmitter's receptor perfectly.

28. Many antidepressants just slow down the reuptake of the neurotransmitter into the presynaptic terminal.

29. The answer to that may be that lowering cholesterol influences the level of serotonin, a neurotransmitter which affects mood.

30. Objective To evaluate the effects of occupational exposure to aluminum on neurobahavioral function and metabolism of monoamine neurotransmitter.