GABAergic cell subtypes and their synaptic connections in rat frontal cortex

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ID: 292303
1997
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Ranked #49 of 107 articles by views in cerebral cortex (new york, ny : 1991)

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Abstract
Physiological, morphological and immunohistochemical characteristics of non-pyramidal cells in frontal cortex of young rats were studied in vitro by whole-cell recording and biocytin injection. Several groups of GABAergic non-pyramidal cells were identified: (i) parvalbumin fast-spiking (FS) cells with low input resistances and spikes of short duration, including extended plexus (basket) cells and chandelier cells. These cells showed abrupt episodes of non-adapting repetitive discharges; (ii) late-spiking (LS) cells exhibiting slowly developing ramp depolarizations, including neurogliaform cells; (iii) the remaining groups contained both burst-spiking (BS) or regular-spiking (RS) non-pyramidal (NP) cells. BSNP cells exhibited bursting activity (two or more spikes on slow depolarizing humps) from hyperpolarized potentials. Both these physiological types corresponded to a range of morphologies: (i) somatostatin-containing Martinotti cells with ascending axonal arbors to layer I (some were also positive for calbindin D28k); (ii) VIP-containing double bouquet cells with descending axonal arbors as well as arcade cells (these included small cells immunoreactive for CCK or calretinin). Each subtype of cells made GABAergic synapses onto relatively specific portions of cortical cells, but similar domains were innervated by multiple classes of GABA cells.
Reference Key
openalex_W2156780983 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yasuo Kawaguchi, Yoshiyuki Kubota
Journal cerebral cortex (new york, ny : 1991)
Year 1997
DOI
10.1093/cercor/7.6.476
URL
https://academic.oup.com/cercor/article-pdf/7/6/476/9752591/070476.pdf
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