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Related Concept Videos

Neurotransmitters01:30

Neurotransmitters

Neurotransmitters play a crucial role in the communication between neurons in the autonomic nervous system. Neurons in the autonomic nervous system can be cholinergic or adrenergic depending on the neurotransmitters synthesized. Cholinergic neurons use acetylcholine as their primary neurotransmitter. This includes all the preganglionic fibers of the sympathetic and pre- and postganglionic fibers of the parasympathetic nervous systems. In addition, neurons of the somatic nervous system also use...
Neurotransmitters01:31

Neurotransmitters

Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
Classification of Neurotransmitters01:30

Classification of Neurotransmitters

Neurotransmitters play a crucial role in the communication between neurons in the autonomic nervous system. Neurons in the autonomic nervous system can be cholinergic or adrenergic depending on the neurotransmitters synthesized. Cholinergic neurons use acetylcholine as their primary neurotransmitter. This includes all the preganglionic fibers of the sympathetic and pre- and postganglionic fibers of the parasympathetic nervous systems. In addition, neurons of the somatic nervous system also use...
Adrenergic Neurons: Neurotransmission01:27

Adrenergic Neurons: Neurotransmission

Postganglionic sympathetic fibers (except those supplying the sweat glands) releasing noradrenaline or norepinephrine are called noradrenergic or adrenergic neurons. Noradrenaline, dopamine, adrenaline, or epinephrine are collectively called "catecholamines" as they contain a catechol moiety and an amine side chain. The five stages of neurotransmitter release involve their synthesis, storage, release, reuptake and metabolism.
Synthesis: Catecholamine synthesis requires tyrosine, which is taken...
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Regulation of Food Intake01:30

Regulation of Food Intake

Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...

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Related Experiment Video

Updated: Jun 30, 2026

Multi-Faceted Mass Spectrometric Investigation of Neuropeptides in Callinectes sapidus
09:22

Multi-Faceted Mass Spectrometric Investigation of Neuropeptides in Callinectes sapidus

Published on: May 31, 2022

Neuropeptides.

Chris Li1, Kyuhyung Kim

  • 1Department of Biology, City College of New York, New York, NY 10031, USA. cli@sci.ccny.cuny.edu

Wormbook : the Online Review of C. Elegans Biology
|September 27, 2008
PubMed
Summary

Neuropeptides significantly influence C. elegans behavior, with 113 identified genes impacting functions like locomotion and egg-laying. Further research is identifying neuropeptide receptors to understand their full behavioral effects.

Area of Science:

  • Neuroscience
  • Genomics
  • Behavioral Biology

Background:

  • The role of neuropeptides in behavior modulation is increasingly understood.
  • The sequencing of the C. elegans genome allows for comprehensive identification of neuropeptide genes.

Purpose of the Study:

  • To identify and characterize neuropeptide genes in C. elegans.
  • To investigate the function of neuropeptides in modulating C. elegans behavior.
  • To identify neuropeptide receptors and their roles.

Main Methods:

  • Genome sequencing to identify neuropeptide genes.
  • Analysis of neuropeptide precursor processing and gene expression patterns.
  • Generation and analysis of knockout and overexpressing C. elegans strains.
  • Identification and examination of neuropeptide receptors.

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Time-Resolved In Vivo Measurement of Neuropeptide Dynamics by Capacitive Immunoprobe in Porcine Heart
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Time-Resolved In Vivo Measurement of Neuropeptide Dynamics by Capacitive Immunoprobe in Porcine Heart

Published on: May 19, 2022

Related Experiment Videos

Last Updated: Jun 30, 2026

Multi-Faceted Mass Spectrometric Investigation of Neuropeptides in Callinectes sapidus
09:22

Multi-Faceted Mass Spectrometric Investigation of Neuropeptides in Callinectes sapidus

Published on: May 31, 2022

Time-Resolved In Vivo Measurement of Neuropeptide Dynamics by Capacitive Immunoprobe in Porcine Heart
08:20

Time-Resolved In Vivo Measurement of Neuropeptide Dynamics by Capacitive Immunoprobe in Porcine Heart

Published on: May 19, 2022

Main Results:

  • Identified 113 neuropeptide genes encoding over 250 distinct neuropeptides.
  • Neuropeptide genes are expressed widely in the nervous system and some non-neuronal tissues.
  • Inactivation of neuropeptide genes results in defects in locomotion, dauer formation, egg laying, ethanol response, and social behavior.

Conclusions:

  • C. elegans neuropeptides play a modulatory role in a wide range of behaviors.
  • Understanding neuropeptide systems is crucial for deciphering complex behaviors.
  • Further research into neuropeptide-receptor interactions will elucidate precise behavioral mechanisms.