The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.
The distribution of oxytocin‐ and neurophysin‐stained fibers in the spinal cord of the rat and monkey
Abstract
Immunohistochemical methods have been used to describe the distribution of neurophysin I‐ and oxytocin‐stained fibers in the spinal cord. In albino rats of either sex, such fibers descend through the dorsal part of the lateral funiculus to the caudal end of the cord. Fibers leave the lateral funiculus to innervate the marginal zone of the dorsal horn at all levels, and the intermediolateral column at thoracic, lumbar and sacral levels. Some fibers course medially through the intermediate gray to end in the central gray, which is innervated at all levels, and also appears to be innervated by fibers descending in the central gray itself. A semiquantitative analysis shows that the density of terminal fields in the intermediolateral column, marginal zone, and central gray varies significantly at different levels. The intermediolateral column is preferentially innervated between T 1 ‐T 3 , T 9 ‐T 11 , and T 13 ‐L 2 . The nucleus intercalatus spinalis and the dorsal commissural nucleus (between T 13 and L 2 ), both of which contain preganglionic neurons, are densely innervated. In the monkey ( Macaca fascicularis ), neurophysin I‐ and oxytocin‐stained fibers descend through the lateral funiculus to the filum terminale, where some of them enter the pia‐arachnoid surrounding the filum. The intermediolateral column is not innervated between T 1 ‐T 3 , is sparsely innervated at sacral levels, and is moderately innervated between T 4 and L 3 ; the greatest density of fibers occurs at L 3 . At most levels, few if any fibers are found in the central gray and marginal zone; the central gray is sparsely innervated between T 8 and L 2 , at S 2 , and between Co 3 ‐Co 6 , and the marginal zone contains a small number of fibers in the region of S 2 and Co 6 . Neurophysin I‐ and oxytocin‐stained fibers were also found in the intermediolateral column, marginal zone, and central gray of homozygous Brattleboro, spontaneously hypertensive, and Egyptian sand rats. The results suggest that the paraventriculo‐spinal pathway is particularly related to specific groups of sympathetic and parasympathetic preganglionic neurons, and to the marginal zone, which is involved in the relay of ascending nociceptive information through the spinothalamic tract.
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“One mechanism involves the engagement of GABA‐mediated inhibitory circuits at the superficial layers of spinal cord dorsal horn neurones, which express oxytocin receptors 7 and receive direct projections from hypothalamic oxytocin neurones 8, 9, reducing Aδ/C‐fibre afferent signalling and ascending nociceptive input 10, 11, 12, 13, 14.”
From The Analgesic Effect of Oxytocin in Humans: A Double‐Blind, Placebo‐Controlled Cross‐Over Study Using Laser‐Evoked Potentials (2016) · cites this paper as [9]
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Hypothalamic integration: organization of the paraventricular and supraoptic nuclei
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Metadata
- Authors
- Swanson, L. W., & McKellar, S.
- Affiliations
- Washington University in St. Louis (US)
- ORCID
- Swanson, L. W.
- Venue
- Journal of Comparative Neurology
- Publisher
- Wiley
- Published
- 1979-11
- Volume
- 188
- Issue
- 1
- Pages
- 87-106
- ISSN
- 0021-9967 (ISSN-L)
- 1096-9861
- OpenAlex
- W2088007298
- Cited by
- 336
- References
- 51
- Citations by year
- 2026: 3 · 2025: 1 · 2024: 1 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 4 · 2014: 8 · 2013: 9 · 2012: 6
- FWCI
- 24.28
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Comparative Neurology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroendocrine regulation and behavior
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
- Health Sciences › Medicine › Physiology (medical) › Pain Mechanisms and Treatments
- Keywords
- oxytocin, neurophysin I, spinal cord, intermediolateral cell column, periaqueductal gray, marginal zone, lateral funiculus, preganglionic neurons, sympathetic innervation, parasympathetic innervation, filum terminale, spinothalamic tract, nociception, Brattleboro rats, spontaneously hypertensive rats, rats, monkeys
- MeSH terms
- Animals, Haplorhini, Arachnoid, Autonomic Fibers, Preganglionic, Cauda Equina, Efferent Pathways, Female, Fluorescent Antibody Technique, Ganglia, Parasympathetic, Ganglia, Sympathetic, Macaca fascicularis, Male, Neurophysins, Oxytocin, Paraventricular Hypothalamic Nucleus, Pia Mater, Species Specificity, Spinal Cord, Rats
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