Structure and ultrastructure of adrenocorticotropic hormone cells in goats in anoestrus, gestation and milk production. |
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| Authors: | J A Navarro M A Gómez J Sánchez S Gómez A Bernabé |
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| Institution: | Unidad Docente de Histología y Anatomía Patológica, Facultad de Veterinaria, Universidad de Murcia, Spain. |
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| Abstract: | The structural and ultrastructural characteristics of adrenocorticotropic hormone cells in adult female goats in anoestrus, gestation and milk production were studied with an immunohistochemical method (peroxidase-antiperoxidase). Only one cellular type has been identified and is characterized by numerous secretory granules of different electron density and an average diameter of 275 nm. During pregnancy these cells increase in number and size, and there is a frequent presence of vacuoles. During lactation the number of size of the cells decreases but without reaching the state observed in anoestrus and the involution of the cytoplasmic vacuolizations which appear in pregnancy. |
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