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- W2076773533 abstract "Evidence for the importance of the basal forebrain cholinergic system in the maintenance of cognitive function has stimulated efforts to identify trophic mechanisms that protect this cell population from atrophy and dysfunction associated with aging and disease. Acidic fibroblast growth factor (aFGF) has been reported to support cholinergic neuronal survival and has been localized in basal forebrain with the use of immunohistochemical techniques. Although these data indicate that aFGF is present in regions containing cholinergic cell bodies, the actual site of synthesis of this factor has yet to be determined. In the present study, in situ hybridization techniques were used to evaluate the distribution and possible colocalization of mRNAs for aFGF and the cholinergic neuron marker choline acetyltransferase (ChAT) in basal forebrain and striatum. In single-labeling preparations, aFGF mRNA-containing neurons were found to be codistributed with ChAT mRNA+ cells throughout all fields of basal forebrain, including the medial septum/diagonal band complex and striatum. By using a double-labeling (colormetric and isotopic) technique, high levels of colocalization (over 85%) of aFGF and ChAT mRNAs were observed in the medial septum, the diagonal bands of Broca, the magnocellular preoptic area, and the nucleus basalis of Meynert. The degree of colocalization was lower in the striatum, with 64% of the cholinergic cells in the caudate and 33% in the ventral striatum and olfactory tubercle labeled by the aFGF cRNA. These data demonstrate substantial regionally specific patterns of colocalization and support the hypothesis that, via an autocrine mechanism, aFGF provides local trophic support for cholinergic neurons in the basal forebrain and the striatum. © 1996 Wiley-Liss, Inc." @default.
- W2076773533 created "2016-06-24" @default.
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- W2076773533 creator A5087506506 @default.
- W2076773533 date "1996-03-11" @default.
- W2076773533 modified "2023-09-23" @default.
- W2076773533 title "Acidic fibroblast growth factor mRNA is expressed by basal forebrain and striatal cholinergic neurons" @default.
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- W2076773533 doi "https://doi.org/10.1002/(sici)1096-9861(19960311)366:3<379::aid-cne1>3.0.co;2-1" @default.
- W2076773533 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/8907353" @default.
- W2076773533 hasPublicationYear "1996" @default.
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