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Transmitter-peptide coexistence in the central nervous system
European Neurology
|January 1, 1983
Summary
Neurotransmitters like dopamine and serotonin can coexist with peptides in the brain and body. These coexisting peptides enhance the effects of classical transmitters, suggesting cooperative physiological responses.
Area of Science:
- Neuroscience
- Molecular Biology
- Pharmacology
Background:
- Classical neurotransmitters (dopamine, noradrenaline, adrenaline, serotonin) and peptides (substance P, cholecystokinin, avian pancreatic polypeptide) are key signaling molecules in the nervous system.
- Understanding transmitter coexistence is crucial for comprehending complex physiological regulation in both central and peripheral tissues.
Purpose of the Study:
- To review the concept of transmitter coexistence in the central nervous system and peripheral sympathetically innervated tissues.
- To discuss the identification of peptides using immunohistochemical reactions and explore the functional aspects of peptide coexistence with monoamines.
Main Methods:
- Literature review focusing on studies investigating transmitter coexistence.
- Analysis of immunohistochemical techniques for peptide identification.
- Evaluation of functional studies on the effects of coexisting peptides and monoamines.
Main Results:
- Peptides frequently coexist with classical monoamine transmitters in various neural tissues.
- Immunohistochemistry allows for specific identification of these coexisting peptides.
- Co-stored peptides exert specific effects in regions where coexistence occurs.
Conclusions:
- Peptide coexistence with monoamines is a significant phenomenon in neurobiology.
- Coexisting peptides generally enhance the physiological response mediated by monoamines.
- This enhancement suggests a cooperative mechanism between co-stored neuroactive substances for specific physiological outcomes.