| Testicular blood flow measured with a laser Doppler flowmeter: acute effects of catecholamines. | |
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MedLine Citation:
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PMID: 6958177 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Laser Doppler flowmetry was used to continuously measure testicular blood flow in rats. The method was found applicable on surgically exposed testes. Regular oscillations in blood flow, with a periodicity of 8.6 +/- 0.7 cycles per minute (mean +/- SD), were observed in recordings from 22 to 23 rats. Clamping of the testicular artery reduced the blood flow signal to background values. Effects of catecholamines administered into the tail artery on testicular blood flow together with systemic effects on mean arterial blood pressure and heart rate were measured. It was found that noradrenaline as well as adrenaline caused a significant decrease in blood flow when 10 micrograms was injected. Only noradrenaline decreased the blood flow when 1 microgram was given. The large oscillations detected in the blood flow recordings disappeared quickly when 10 or 1 micrograms of both hormones was administered. It was concluded that catecholamines can exert rapid effects on testicular blood flow. |
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Authors:
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J E Damber; O Lindahl; G Selstam; T Tenland |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Acta physiologica Scandinavica Volume: 115 ISSN: 0001-6772 ISO Abbreviation: Acta Physiol. Scand. Publication Date: 1982 Jun |
Date Detail:
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Created Date: 1982-12-16 Completed Date: 1982-12-16 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0370362 Medline TA: Acta Physiol Scand Country: SWEDEN |
Other Details:
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Languages: eng Pagination: 209-15 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 Blood Pressure / drug effects Catecholamines / pharmacology* Epinephrine / pharmacology Heart Rate / drug effects Lasers* Male Norepinephrine / pharmacology Periodicity Rats Rats, Inbred Strains Regional Blood Flow / drug effects Testis / blood supply* |
| Chemical | |
Reg. No./Substance:
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0/Catecholamines; 51-41-2/Norepinephrine; 51-43-4/Epinephrine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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