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ANF-like peptide(s) in the peripheral autonomic nervous system
Biochemical and Biophysical Research Communications
|January 14, 1986
Summary
Atrial natriuretic factor (ANF) is found in peripheral nervous structures, not just the brain. This peptide shows biological activity, suggesting ANF regulates both central and peripheral neuronal functions.
Area of Science:
- Neuroscience
- Endocrinology
- Cardiovascular Research
Background:
- Atrial natriuretic factor (ANF) has been previously identified in the brain.
- The role of ANF in the peripheral nervous system remains largely unexplored.
Purpose of the Study:
- To investigate the presence and activity of ANF-like substances in peripheral nervous structures.
- To determine if ANF plays a role in regulating peripheral neuronal activity.
Main Methods:
- Radioimmunoassay (RIA) was used to detect ANF-like immunoreactive peptides.
- Crude and chromatographically separated extracts from rat parasympathetic ganglia were analyzed.
- Biological activity of partially purified ANF-like peptide was assessed.
Main Results:
- ANF-like immunoreactive peptides were detected in peripheral nervous structures, specifically rat parasympathetic ganglia.
- A partially purified ANF-like peptide demonstrated biological activity comparable to cardiac ANF.
- Evidence suggests ANF-like substances are present and biologically active in the peripheral nervous system.
Conclusions:
- The findings extend the known localization of ANF to include peripheral nervous system components.
- ANF-like peptides in peripheral ganglia may be involved in neuronal regulation.
- This suggests a broader role for ANF in modulating both central and peripheral neuronal activities.