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Dynorphin B is pres...
Dynorphin B is present in sensory and parasympathetic nerves innervating pial arteries
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- Hardebo, Jan Erik (author)
- Lund University,Lunds universitet,Neurologi, Lund,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Neurology, Lund,Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine
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Suzuki, Norihiro (author)
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- Owman, Christer (author)
- Lund University,Lunds universitet,Drug Target Discovery,Forskargrupper vid Lunds universitet,Lund University Research Groups
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(creator_code:org_t)
- Elsevier BV, 1994
- 1994
- English.
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In: Journal of the Autonomic Nervous System. - : Elsevier BV. - 0165-1838. ; 47:3, s. 171-176
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Abstract
Subject headings
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- Dynorphin B (dyn B) in trigeminal ganglion cells and in perivascular nerve fibers in pial arteries was demonstrated in rat, guinea-pig, and monkey by immunohistochemistry. The pathway from the trigeminal ganglion, which runs via the nasociliary nerve and ethmoidal foramen to the pial arteries, was shown in rat by retrograde tracer technique and nerve section. In the guinea-pig the peptide was demonstrated to coexist with substance P and calcitonin gene-related peptide in neurons of the trigeminal ganglion and pial nerve fibers, i.e., it was present in cerebrovascular sensory nerves with primarily nociceptive function. Another finding in guinea-pig was a coexistence of dyn B with vasoactive intestinal polypeptide in the pial nerve fibers and neurons of the sphenopalatine ganglion, indicating a presence also in parasympathetic nerves to the cerebral vessels. No vasomotor effect of dyn B could be detected in isolated segments of rat pial arteries, which rules out a direct postsynaptic effect on vascular tone. The peptide did not display a prejunctional modulatory action on the adrenergic nerves present in the vessels. The function of dyn B in the cerebrovascular nerves is discussed.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- Sensory nerve fiber
- Parasympathetic nerve
- Trigeminal ganglion
- Cranial parasympathetic ganglia
- Dynorphin
- Immunohistochemistry
Publication and Content Type
- art (subject category)
- ref (subject category)
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