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Neuroreport. 2008 May 7;19(7):717-21. doi: 10.1097/WNR.0b013e3282fd6946.

A high-resolution large area serotonin map of a live rat brain section.

Author information

1
Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai, India.

Abstract

We employ three-photon microscopy to produce a high-resolution map of serotonin autofluorescence in a rat midbrain section (covering more than half of the brain), to quantitatively characterize serotonin distribution and release in different areas of a live brain slice. The map consists of a tiling of approximately 160 contiguous optical images (covering an area of approximately 27 mm with sub-mum resolution in 20 min), and is recorded before and after inducing depolarization. We observe that the total serotonin exocytosed from the somata in the raphe is quantitatively comparable with regions containing a high density of serotonergic processes. Our results demonstrate that high-resolution, wide-area, dynamic neurotransmitter mapping is now possible.

PMID:
18418245
DOI:
10.1097/WNR.0b013e3282fd6946
[Indexed for MEDLINE]

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