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Study of electrophysiology in nodose ganglia of adult rat by Patch clamp (CAT#: STEM-PET-0057-WXH)
Introduction
Nodose ganglia are paired structures that receive cardiac afferent inputs from sensory neurites located in atrial and ventricular tissues. These sensory neurites preferentially sense chemical stimuli, with a few responding to mechanical stimuli or both modalities.
Principle
The patch-clamp technique involves a glass micropipette forming a tight gigaohm seal with the cell membrane. The micropipette contains a wire bathed in an electrolytic solution to conduct ions. To measure single ion channels, a “patch” of membrane is pulled away from the cell after forming a gigaohm seal.
Applications
• Study of ionic currents in individual isolated living cells, tissue sections, or patches of cell membrane.
• Study of excitable cells such as neurons, cardiomyocytes, muscle fibers, and pancreatic beta cells.
• Study of ion channels.
• Study of excitable cells such as neurons, cardiomyocytes, muscle fibers, and pancreatic beta cells.
• Study of ion channels.
Procedure
1. Fabrication of glass electrodes
2. Measuring glass electrode resistance and compensating offset potential
3. Glass electrode contact to cell membrane and obtain a GΩ seal
4. Acquire and analyse recordings using the appropriate software.
2. Measuring glass electrode resistance and compensating offset potential
3. Glass electrode contact to cell membrane and obtain a GΩ seal
4. Acquire and analyse recordings using the appropriate software.
Materials
Patch clamp system
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