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Australian Journal of Zoology Australian Journal of Zoology Society
Evolutionary, molecular and comparative zoology
RESEARCH ARTICLE

The Fine Structure of the Luteal Cells in Relation to the Concentration of Progesterone in the Plasma of the Lactating Bandicoot, Isoodon Macrourus (Marsupialia: Peramelidae).

RT Gemmell

Australian Journal of Zoology 27(4) 501 - 510
Published: 1979

Abstract

The ultrastructure of the corpora lutea of lactation in the bandicoot I. macrourus has been correlated with the concentration of progesterone in the maternal plasma. The circulating level of progesterone declined from a maximum of 12.3 ± 1.6 (SE) ng ml-1 (n= 11) early in lactation at days 0-10 post partum, to 4.1 ± 0.4 (SE) ng ml-1 (n=25) at days 11-57. This change in hormone concentration is in accord with the loss of densely staining granules from the luteal cells.

https://doi.org/10.1071/ZO9790501

© CSIRO 1979

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