| Substantia nigra lesions attenuate the development of hypertension and behavioural hyperreactivity in spontaneously hypertensive rats. | |
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MedLine Citation:
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PMID: 3763656 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The possible relation between changes in behaviour and the development of hypertension was investigated. Depletion of striatal dopamine by lesions in the substantia nigra of Spontaneously Hypertensive Rats (SHR) was associated with an inhibition of the development of hypertension. In the open field a decrease in rearing score was found with no effect on other parameters. Rearing activity was significantly correlated with blood pressure as well as with striatal dopamine content. Blood pressure was weakly, although significantly, correlated with striatal dopamine content. Neither blood pressure nor striatal dopamine content was significantly correlated with ambulation activity. In normotensive Wistar-Kyoto rats a decrease was also found in rearing activity after nigra lesions, although this effect was less pronounced. Antihypertensive treatment of SHR with captopril or hydralazine did neither affect striatal dopamine levels nor open-field behaviour. Induction of renal hypertension or DOCA-salt hypertension in Wistar rats did not influence brain dopamine or behaviour. The results support the suggestion that brain dopamine systems may play a role in the development of hypertension in SHR as well as in the changes in behaviour observed in these rats. Changes in behaviour do not appear to be mediated by changes in blood pressure per se. |
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Authors:
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M Van den Buuse; H D Veldhuis; D H Versteeg; W De Jong |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pharmacology, biochemistry, and behavior Volume: 25 ISSN: 0091-3057 ISO Abbreviation: Pharmacol. Biochem. Behav. Publication Date: 1986 Aug |
Date Detail:
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Created Date: 1986-11-21 Completed Date: 1986-11-21 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0367050 Medline TA: Pharmacol Biochem Behav Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 317-24 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brain Chemistry Catecholamines / analysis Desoxycorticosterone Hypertension / chemically induced, physiopathology* Hypertension, Renal / physiopathology Male Motor Activity / physiology* Rats Rats, Inbred SHR Rats, Inbred WKY Sodium Chloride Substantia Nigra / physiopathology* |
| Chemical | |
Reg. No./Substance:
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0/Catecholamines; 64-85-7/Desoxycorticosterone; 7647-14-5/Sodium Chloride |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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