Skip to Main content Skip to Navigation
Journal articles

Immunohistochemistry as a tool for topographial semi-quantification of neurotransmitters in the brain

Abstract : Immunohistochemistry is a powerful tool to detect neurotransmitter (NT) presence in different brain structures with a high spatial resolution. However, it is only scarcely used in quantitative approach due to lack of reproducibility and sensitivity. We developed a protocol of NT detection based on immunohistochemistry and image analysis to show that this approach could also be useful to evaluate NT content variations. We focused our study on the GABAergic system in the cerebellum and measured different accurate parameters, namely the optical density (O.D.), the stained area and the number of immunoreactive cells in each cerebellar cell layer. In order to modify the GABA content, we used gamma-vinyl-GABA (GVG), an inhibitor of GABA-transaminase, known to dramatically increase GABA concentration in the central nervous system (CNS) and especially in the cerebellum. We observed a significant increase in the three parameters measured in the molecular and the granular layers of the cerebellum after treatment with GVG, reflecting the well-established increase in GABA content after such a treatment. Therefore, our technical approach allows not only a precise determination of the effects in particular cell layers but also a semi-quantification of GABA content variations. This technique could be suitable for monitoring NT variations following any treatment.
Document type :
Journal articles
Complete list of metadatas

https://hal-ineris.archives-ouvertes.fr/ineris-00962842
Contributor : Gestionnaire Civs <>
Submitted on : Friday, March 21, 2014 - 1:59:15 PM
Last modification on : Friday, December 6, 2019 - 1:44:04 PM

Identifiers

Collections

Citation

Anne-Laure Mausset-Bonnefont, René de Seze, Alain Privat. Immunohistochemistry as a tool for topographial semi-quantification of neurotransmitters in the brain. Brain Research Protocols, Elsevier, 2003, 10 (3), pp.148-155. ⟨10.1016/S1385-299X(02)00206-4⟩. ⟨ineris-00962842⟩

Share

Metrics

Record views

123