Role of supraspinal serotonin receptors for micturition in normal conscious rats
(2002) In Neurourology and Urodynamics 21(3). p.225-230- Abstract
- Serotonin (5-HT) receptors are widely distributed in the central nervous system, including several areas involved in the control of micturition reflex pathways. However, the roles of the different subtypes of 5-HT receptors are not well known. We studied in normal, conscious rats, the effects on the cystometrogram of intracerebroventricular (i.c.v.) administration of 5-HT, 8-hydroxy-2-(di-N-propylaminotetralin) (8-OH-DPAT; agonist at 5-HT1A receptors), alpha-methol-5-hydroxytryptamine maleate (agonist at 5-HT2 receptors), 2-methyl-5-hydroxytryptamine hydrochloride (agonist at 5-HT3 receptors), and 1-(4-amino-5-chloro-2methoxyphenyl)-3-(1-n-butyl-4piperidinyl)-1-propano ne hydrochloride (RS67506; agonist at 5-HT4 receptors). Female... (More)
- Serotonin (5-HT) receptors are widely distributed in the central nervous system, including several areas involved in the control of micturition reflex pathways. However, the roles of the different subtypes of 5-HT receptors are not well known. We studied in normal, conscious rats, the effects on the cystometrogram of intracerebroventricular (i.c.v.) administration of 5-HT, 8-hydroxy-2-(di-N-propylaminotetralin) (8-OH-DPAT; agonist at 5-HT1A receptors), alpha-methol-5-hydroxytryptamine maleate (agonist at 5-HT2 receptors), 2-methyl-5-hydroxytryptamine hydrochloride (agonist at 5-HT3 receptors), and 1-(4-amino-5-chloro-2methoxyphenyl)-3-(1-n-butyl-4piperidinyl)-1-propano ne hydrochloride (RS67506; agonist at 5-HT4 receptors). Female Sprague-Dawley rats, weighing approximately 230 g, were used. A polyethylene catheter was inserted into the bladder through the dome for cystometric investigations. For administration of drugs, a catheter was implanted into the right cerebral ventricle. Three days after implantation of the bladder catheter, continuous cystometry was performed. Administration of 5-HT (6 nmol/kg i.c.v.), 8-OH-DPAT (6 nmol/kg), alpha-methyl-5-hydroxytryptamine maleate (6 nmol/kg), or RS67506 hydrochloride (6 nmol/kg) significantly (P < 0.05) increased micturition pressure and decreased bladder capacity and micturition volume. The effects increased in a dose-dependent manner (18, 60 nmol/kg). Intracerebroventricular administration of 2-methyl-5-hydroxytryptamine hydrochloride (60 nmol/kg) caused no change in the cystometric parameters. The results suggest that in normal conscious rats, at the supraspinal level, 5-HT (via 5-HT1A, 5-HT2, and 5-HT4 receptors) can enhance the micturition reflex induced by bladder filling. Whether this means that 5-HT1A, 5-HT2, and 5-HT4 receptors can be targets for drugs meant for treatment of bladder hyperactivity, should be explored. (C) 2002Wiley-Liss, Inc. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/339859
- author
- Ishizuka, O ; Gu, BJ ; Igawa, Y ; Nishizawa, O ; Pehrson, R and Andersson, Kenneth LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cystometry, serotonin, bladder, rats
- in
- Neurourology and Urodynamics
- volume
- 21
- issue
- 3
- pages
- 225 - 230
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000175115700008
- pmid:11948716
- scopus:0036117646
- ISSN
- 0733-2467
- DOI
- 10.1002/nau.10043
- language
- English
- LU publication?
- yes
- id
- d13d3431-f807-495a-94e5-61e6a91cfa0b (old id 339859)
- date added to LUP
- 2016-04-01 11:54:58
- date last changed
- 2022-02-25 23:13:33
@article{d13d3431-f807-495a-94e5-61e6a91cfa0b,
abstract = {{Serotonin (5-HT) receptors are widely distributed in the central nervous system, including several areas involved in the control of micturition reflex pathways. However, the roles of the different subtypes of 5-HT receptors are not well known. We studied in normal, conscious rats, the effects on the cystometrogram of intracerebroventricular (i.c.v.) administration of 5-HT, 8-hydroxy-2-(di-N-propylaminotetralin) (8-OH-DPAT; agonist at 5-HT1A receptors), alpha-methol-5-hydroxytryptamine maleate (agonist at 5-HT2 receptors), 2-methyl-5-hydroxytryptamine hydrochloride (agonist at 5-HT3 receptors), and 1-(4-amino-5-chloro-2methoxyphenyl)-3-(1-n-butyl-4piperidinyl)-1-propano ne hydrochloride (RS67506; agonist at 5-HT4 receptors). Female Sprague-Dawley rats, weighing approximately 230 g, were used. A polyethylene catheter was inserted into the bladder through the dome for cystometric investigations. For administration of drugs, a catheter was implanted into the right cerebral ventricle. Three days after implantation of the bladder catheter, continuous cystometry was performed. Administration of 5-HT (6 nmol/kg i.c.v.), 8-OH-DPAT (6 nmol/kg), alpha-methyl-5-hydroxytryptamine maleate (6 nmol/kg), or RS67506 hydrochloride (6 nmol/kg) significantly (P < 0.05) increased micturition pressure and decreased bladder capacity and micturition volume. The effects increased in a dose-dependent manner (18, 60 nmol/kg). Intracerebroventricular administration of 2-methyl-5-hydroxytryptamine hydrochloride (60 nmol/kg) caused no change in the cystometric parameters. The results suggest that in normal conscious rats, at the supraspinal level, 5-HT (via 5-HT1A, 5-HT2, and 5-HT4 receptors) can enhance the micturition reflex induced by bladder filling. Whether this means that 5-HT1A, 5-HT2, and 5-HT4 receptors can be targets for drugs meant for treatment of bladder hyperactivity, should be explored. (C) 2002Wiley-Liss, Inc.}},
author = {{Ishizuka, O and Gu, BJ and Igawa, Y and Nishizawa, O and Pehrson, R and Andersson, Kenneth}},
issn = {{0733-2467}},
keywords = {{cystometry; serotonin; bladder; rats}},
language = {{eng}},
number = {{3}},
pages = {{225--230}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Neurourology and Urodynamics}},
title = {{Role of supraspinal serotonin receptors for micturition in normal conscious rats}},
url = {{http://dx.doi.org/10.1002/nau.10043}},
doi = {{10.1002/nau.10043}},
volume = {{21}},
year = {{2002}},
}