Distribution of peptidergic nerves in the choroid plexus, focusing on coexistence of neuropeptide Y, vasoactive intestinal polypeptide and peptide histidine isoleucine
(1990) In Regulatory Peptides 27(1). p.11-26- Abstract
- Choroid plexus from rat, guinea-pig, rabbit and pig was investigated by light-microscopic immunohistochemistry and by radioimmunoassay for the presence of neuropeptides. A moderately dense supply of nerve fibers containing neuropeptide Y (NPY) and vasoactive intestinal polypeptide (VIP), respectively, was found around blood vessels and in close relation to the secretory epithelium in both pig and rabbit, while lower densities of nerve fibers were found in rat and guinea-pig. Peptide concentrations ranged from 10-40 pmolequivalents/g (pmoleqv/g) for NPY and 0.5-6 pmoleqv/g for VIP in all four species. Peptide histidine isoleucine (PHI) immunoreactive nerve fibers were present in pig choroid plexus at a lower density than NPY and VIP but... (More)
- Choroid plexus from rat, guinea-pig, rabbit and pig was investigated by light-microscopic immunohistochemistry and by radioimmunoassay for the presence of neuropeptides. A moderately dense supply of nerve fibers containing neuropeptide Y (NPY) and vasoactive intestinal polypeptide (VIP), respectively, was found around blood vessels and in close relation to the secretory epithelium in both pig and rabbit, while lower densities of nerve fibers were found in rat and guinea-pig. Peptide concentrations ranged from 10-40 pmolequivalents/g (pmoleqv/g) for NPY and 0.5-6 pmoleqv/g for VIP in all four species. Peptide histidine isoleucine (PHI) immunoreactive nerve fibers were present in pig choroid plexus at a lower density than NPY and VIP but with a similar distribution. Low concentrations of substance P (0.3-3 pmoleqv/g) and calcitonin gene-related peptide (0.1-3 pmoleqv/g) were found to a varying degree in choroid plexus tissue from the different species, while immunohistochemical investigation was unable to detect any immunoreactive nerve fibers. NPY was often found to coexist with VIP and PHI in pig choroid plexus, while a lesser amount of nerve fibers showed coexistence of NPY and the noradrenaline synthetizing enzyme, dopamine-beta-hydroxylase. Surgical sympathetic denervation by excision of the superior cervical ganglion in the rabbit abolished NPY-containing nerve fibers, as revealed by immunohistochemistry, but only decreased NPY levels by one third, which may be due to different identity of the peptide being detected by the two techniques. It is concluded that NPY-containing nerve fibers have a dual origin in the choroid plexus and coexist with either noradrenaline or VIP/PHI. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1105366
- author
- Nilsson, Christer LU ; Ekman, Rolf ; Lindvall-Axelsson, Maria and Owman, Christer LU
- organization
- publishing date
- 1990
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Choroid plexus, Coexistence, Neuropeptide Y, Vasoactive intestinal polypeptide, Peptide histidine isoleucine, Sympathetic denervation
- in
- Regulatory Peptides
- volume
- 27
- issue
- 1
- pages
- 11 - 26
- publisher
- Elsevier
- external identifiers
-
- pmid:2408110
- scopus:0025165048
- ISSN
- 1873-1686
- DOI
- 10.1016/0167-0115(90)90201-7
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Department of Psychogeriatrics (013304000), Drug Target Discovery (013212045)
- id
- b8655efa-81a8-4edd-8151-2a85047f6a9f (old id 1105366)
- date added to LUP
- 2016-04-01 11:42:39
- date last changed
- 2021-01-03 04:40:15
@article{b8655efa-81a8-4edd-8151-2a85047f6a9f, abstract = {{Choroid plexus from rat, guinea-pig, rabbit and pig was investigated by light-microscopic immunohistochemistry and by radioimmunoassay for the presence of neuropeptides. A moderately dense supply of nerve fibers containing neuropeptide Y (NPY) and vasoactive intestinal polypeptide (VIP), respectively, was found around blood vessels and in close relation to the secretory epithelium in both pig and rabbit, while lower densities of nerve fibers were found in rat and guinea-pig. Peptide concentrations ranged from 10-40 pmolequivalents/g (pmoleqv/g) for NPY and 0.5-6 pmoleqv/g for VIP in all four species. Peptide histidine isoleucine (PHI) immunoreactive nerve fibers were present in pig choroid plexus at a lower density than NPY and VIP but with a similar distribution. Low concentrations of substance P (0.3-3 pmoleqv/g) and calcitonin gene-related peptide (0.1-3 pmoleqv/g) were found to a varying degree in choroid plexus tissue from the different species, while immunohistochemical investigation was unable to detect any immunoreactive nerve fibers. NPY was often found to coexist with VIP and PHI in pig choroid plexus, while a lesser amount of nerve fibers showed coexistence of NPY and the noradrenaline synthetizing enzyme, dopamine-beta-hydroxylase. Surgical sympathetic denervation by excision of the superior cervical ganglion in the rabbit abolished NPY-containing nerve fibers, as revealed by immunohistochemistry, but only decreased NPY levels by one third, which may be due to different identity of the peptide being detected by the two techniques. It is concluded that NPY-containing nerve fibers have a dual origin in the choroid plexus and coexist with either noradrenaline or VIP/PHI.}}, author = {{Nilsson, Christer and Ekman, Rolf and Lindvall-Axelsson, Maria and Owman, Christer}}, issn = {{1873-1686}}, keywords = {{Choroid plexus; Coexistence; Neuropeptide Y; Vasoactive intestinal polypeptide; Peptide histidine isoleucine; Sympathetic denervation}}, language = {{eng}}, number = {{1}}, pages = {{11--26}}, publisher = {{Elsevier}}, series = {{Regulatory Peptides}}, title = {{Distribution of peptidergic nerves in the choroid plexus, focusing on coexistence of neuropeptide Y, vasoactive intestinal polypeptide and peptide histidine isoleucine}}, url = {{http://dx.doi.org/10.1016/0167-0115(90)90201-7}}, doi = {{10.1016/0167-0115(90)90201-7}}, volume = {{27}}, year = {{1990}}, }