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Chapitre D'ouvrage Année : 2022

Recording of chromaffin cell electrical activity in situ in acute adrenal slices

Résumé

Because catecholamines secretion mainly relies on the excitable nature of adrenal chromaffin cells, monitoring their electrical activity is an essential step in assessing the adrenal medullary tissue function. The difficult access to the gland in vivo allows only population activity to be recorded in this condition. In vitro preparations allow recordings of spontaneous or evoked activity from single or multiple cells, depending on the biological samples used (dissociated chromaffin cells versus adrenal tissue preparations). In this chapter, I provide a detailed description of the techniques used for electrophysiological recordings in rodent chromaffin cells in acute adrenal slices, using the patch-clamp technique. This methodology allows preservation of the tissue integrity and detection of action potentials, synaptic activity, and secretory events; it is thus suitable for the study of adrenomedullary activity-secretion coupling.
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Dates et versions

hal-03807630 , version 1 (10-10-2022)

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Nathalie C. Guérineau. Recording of chromaffin cell electrical activity in situ in acute adrenal slices. Ricardo Borges. Chromaffin Cells, 2565, SpringerUS, pp.113-127, 2022, Methods in Molecular Biology, ⟨10.1007/978-1-0716-2671-9_9⟩. ⟨hal-03807630⟩
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