Related Experiment Video
Updated: Jul 4, 2026
07:44
Evaluation of Synapse Density in Hippocampal Rodent Brain Slices
Published on: October 6, 2017
Impaired hippocampal synaptic function in secretin deficient mice
T Yamagata1, H Urano, E J Weeber
1Department of Pediatrics, Jichi Medical University, Shimotsuke-shi, Tochigi, Japan.
Neuroscience
|June 7, 2008
Summary
Secretin, a gut hormone, plays a role in the brain. Secretin deficient mice show impaired synaptic plasticity, suggesting its involvement in brain function.
Area of Science:
- Neuroscience
- Molecular Biology
- Endocrinology
Background:
- Secretin is a peptide hormone primarily known for its role in the gastrointestinal system.
- Emerging evidence suggests secretin is also expressed in the central nervous system (CNS).
Purpose of the Study:
- To investigate the neuroactive role of secretin in the brain.
- To determine the impact of secretin deficiency on brain function, specifically synaptic plasticity.
Main Methods:
- Generation of secretin-deficient mice.
- Assessment of synaptic plasticity using long-term potentiation (LTP) in the hippocampus.
- Detection of secretin gene expression via a lacZ reporter and antibody staining in adult mouse brains.
Main Results:
- Secretin-deficient mice exhibited significant impairment in both LTP induction and maintenance in the hippocampal CA1 area.
- Secretin gene expression was confirmed in key brain regions including the hippocampus, cerebellum, and brain stem.
- Specific expression patterns of secretin were identified within the hippocampus.
Conclusions:
- Secretin plays a crucial role in synaptic plasticity within the adult brain.
- The findings support a novel neuroactive function for secretin beyond its traditional gastrointestinal roles.
- Secretin's presence in the hippocampus, cerebellum, and brain stem highlights its widespread influence on central nervous system function.
