Cited by 177Pain Mechanisms and TreatmentsNeuroscience and Neuropharmacology ResearchNeuropeptides and Animal Physiology

Subpopulations of gabaergic neurons in laminae i–iii of rat spinal dorsal horn defined by coexistence with classical transmitters, peptides, nitric oxide synthase or parvalbumin

Laing, I., Todd, A.J., Heizmann, C.W., Schmidt, H.H.H.W.·1994·Neuroscience

Abstract

GABAergic neurons in laminae I-III of the spinal dorsal horn may contain one or more of the following compounds: glycine, acetylcholine, neuropeptide Y, enkephalin, nitric oxide synthase or parvalbumin. Although the pattern of co-localization of some of these compounds is understood, it is not known which types of GABAergic neurons contain parvalbumin, or whether nitric oxide synthase coexists with peptides, acetylcholine or parvalbumin in any of these neurons, and in this study we have used immunocytochemistry and enzyme histochemistry to resolve these issues. Parvalbumin-immunoreactivity was restricted to those GABA-immunoreactive neurons that also showed glycine-immunoreactivity and was not co-localized with neuropeptide Y-immunoreactivity or NADPH diaphorase activity. By combining NADPH diaphorase histochemistry with immunocytochemistry with an antiserum to nitric oxide synthase, we were able to show that NADPH diaphorase activity was a reliable marker for nitric oxide synthase in the spinal cord. Neurons that possess GABA- but not glycine-immunoreactivity may contain neuropeptide Y, enkephalin, acetylcholine or NADPH diaphorase, and all of the cholinergic neurons appear to contain NADPH diaphorase. By combining immunofluorescent detection of neuropeptide Y or enkephalin with NADPH diaphorase histochemistry, we showed that peptide-immunoreactivity did not coexist with NADPH diaphorase. This suggests that neither of these peptides coexists with nitric oxide synthase or wit…

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Crossref · 10.1016/0306-4522(94)90065-5

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  • The Chat dorsal inhibitory cluster Inhib-14 was a deep dorsal (lamina 4), inhibitory and cholinergic population that also expressed Nos1.

    “The Chat dorsal inhibitor cluster Inhib-14 was a deep dorsal (lamina 4), inhibitory and cholinergic population and also expressed Nos180–82.”

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Authors
Laing, I., Todd, A. J., Heizmann, C. W., & Schmidt, H. H. H. W.
Affiliations
  • University of Glasgow (GB)
  • University of Zurich (CH)
  • Universitätsklinikum Würzburg (DE)
Corresponding author
Todd, A.J.
Venue
Neuroscience
Publisher
Elsevier BV
Published
1994-07
Volume
61
Issue
1
Pages
123-132
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2029706214
Cited by
177
References
55
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 9 · 2020: 8 · 2019: 4 · 2018: 5 · 2017: 9 · 2016: 3 · 2015: 5 · 2014: 4 · 2013: 10 · 2012: 1
FWCI
4.76
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
GABAergic neurons, dorsal horn, parvalbumin, nitric oxide synthase, NADPH-diaphorase, neuropeptide Y, enkephalin, acetylcholine, glycine, neuropeptide co-localization, inhibitory interneurons, cholinergic neurons, rats
MeSH terms
Acetylcholine, Amino Acid Oxidoreductases, Animals, Enkephalins, Female, gamma-Aminobutyric Acid, Glycine, Immunohistochemistry, Male, NADPH Dehydrogenase, Neurons, Neuropeptide Y, Neuropeptides, Parvalbumins, Spinal Cord, Biomarkers, Rats, Sprague-Dawley, Neurotransmitter Agents, Nitric Oxide Synthase, Mice, Rats

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