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Morphological Study of Bovine Pregnant Corpus luteum Cells
Author(s) -
Takehana K.,
Abe M.,
Yamada O.,
IidaAbe M.,
Abeishioka N.,
Hiraga T.,
Iwasa K.,
Hiratsuka T.
Publication year - 1997
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/j.1439-0264.1997.tb00132.x
Subject(s) - corpus luteum , bovine serum albumin , relaxin , cytoplasm , secretion , oxytocin , andrology , mitochondrion , chemistry , organelle , medicine , endocrinology , biology , biochemistry , ovary , hormone
Summary The bovine pregnant corpus luteum was examined morphologically, to clarify the appearance and properties of the intramitochondrial bodies (IMB) in mitochondria of the large luteum cell (LLC). The incidence and diameter of the IMB (200–900 nm) showed a tendency to increase with the advance of pregnancy. Histochemically, the IMB reacted positively with protein, and immunohistochemically, they reacted IMB with 11 α‐hydroxyprogesterone‐1‐11 succinyl‐bovine serum albumin (P‐BSA). The IMB seemed to combine with protein, and these granules did not undergo exocytosis. The cytoplasm of LLC contained another type of small electron‐dense granules that were 150–200 nm in diameter, had an orifice for secretion, and reacted with relaxin. Small luteum cells (SLC) revealed crystalline‐like inclusions. It is suggested that these inclusion cells participate in the synthesis of steroids.