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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
27/04/2023 |
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Autoria: |
WAITES, G. M. H.; SETCHELL, B. P. |
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Título: |
Effect of local heating on blood flow and metabolism in the testis of the conscious ram. |
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Ano de publicação: |
1964 |
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Fonte/Imprenta: |
Journal of Reproduction and Fertility, v. 8, n. 3, p. 339-349, Dec. 1964. |
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DOI: |
10.1530/jrf.0.0080339 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The metabolic effects of elevated temperature on the testes of conscious rams have been investigated. Locally heating the testes above 39° C for 2 to 2½ hr caused moderate or severe seminal degeneration. Blood flow through the testes was not consistently changed by the heating applied. More oxygen was removed from a unit volume of the blood passing through the testes when testicular temperatures were higher than 36 ·3 to 37·2° C, than at control temperatures. The oxygen content of the blood in the spermatic veins fell to 2·7 to 4·9 ml 02/100 ml during heating, and oxygen uptake by the testis and epididymis increased by about 70%. In most testes glucose uptake was increased by heating; there was no consistent change in lactate production. It was concluded that heat sufficient to cause spermatogenic damage results in hypoxia in the testis but does not consistently alter the blood flow or the supply of glucose or the important role of glucose in testicular metabolism. |
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Palavras-Chave: |
Andrologia; Heating; Patologia; Testis. |
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Thesagro: |
Carneiro; Metabolismo; Ovino; Reprodução; Sêmen; Testículo. |
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Thesaurus Nal: |
Glucose; Hypoxia; Lactates; Rams; Reproduction; Sheep; Spermatogenesis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01913naa a2200349 a 4500
001 1520052
005 2023-04-27
008 1964 bl uuuu u00u1 u #d
024 7 $a10.1530/jrf.0.0080339$2DOI
100 1 $aWAITES, G. M. H.
245 $aEffect of local heating on blood flow and metabolism in the testis of the conscious ram.$h[electronic resource]
260 $c1964
520 $aAbstract: The metabolic effects of elevated temperature on the testes of conscious rams have been investigated. Locally heating the testes above 39° C for 2 to 2½ hr caused moderate or severe seminal degeneration. Blood flow through the testes was not consistently changed by the heating applied. More oxygen was removed from a unit volume of the blood passing through the testes when testicular temperatures were higher than 36 ·3 to 37·2° C, than at control temperatures. The oxygen content of the blood in the spermatic veins fell to 2·7 to 4·9 ml 02/100 ml during heating, and oxygen uptake by the testis and epididymis increased by about 70%. In most testes glucose uptake was increased by heating; there was no consistent change in lactate production. It was concluded that heat sufficient to cause spermatogenic damage results in hypoxia in the testis but does not consistently alter the blood flow or the supply of glucose or the important role of glucose in testicular metabolism.
650 $aGlucose
650 $aHypoxia
650 $aLactates
650 $aRams
650 $aReproduction
650 $aSheep
650 $aSpermatogenesis
650 $aCarneiro
650 $aMetabolismo
650 $aOvino
650 $aReprodução
650 $aSêmen
650 $aTestículo
653 $aAndrologia
653 $aHeating
653 $aPatologia
653 $aTestis
700 1 $aSETCHELL, B. P.
773 $tJournal of Reproduction and Fertility$gv. 8, n. 3, p. 339-349, Dec. 1964.
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