Alpha-1,4-glucosidase activity in ram seminal plasma is inversely related to serum testosterone
Autor: | Roland R. Tremblay, J.P. Lemay, P. Demers, J. Besancon |
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Rok vydání: | 1990 |
Předmět: |
Serum testosterone
Male medicine.medical_specialty Sheep Glucosidase activity Sperm Count Alpha (ethology) Semen alpha-Glucosidases Biology Epididymis Biochemistry Adult life Endocrinology medicine.anatomical_structure Internal medicine medicine Sperm Motility Animals Testosterone Seasons Sperm motility |
Zdroj: | Enzyme. 43(2) |
ISSN: | 0013-9432 |
Popis: | The epididymis of adult rams is the primary source of alpha-glucosidase in seminal plasma. Two breeds of rams were selected to ascertain whether the enzyme was under androgenic control during adult life of rams. Opposite variations between serum testosterone and alpha-glucosidase were recorded over a period of 16 months in Suffolk and Finnish Landrace. In addition, the highest percentage of sperm motility was associated with a low alpha-glucosidase content of seminal plasma. Data from this study suggest that seasonal variations of testosterone in adult rams exert a negative control on the presence of alpha-glucosidase in semen. |
Databáze: | OpenAIRE |
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