Cellular composition of the cyclic corpus luteum of the cow
| Autor: | J. D. O'Shea, Raymond J. Rodgers, Michael J. D'Occhio |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
endocrine system
Embryology medicine.medical_specialty Cell type Endothelium Cell Cell Count Ovary Biology Luteal phase Endocrinology Estrus Corpus Luteum Luteal Cells Internal medicine medicine Animals reproductive and urinary physiology Estrous cycle urogenital system Obstetrics and Gynecology Cell Biology Arterioles medicine.anatomical_structure Reproductive Medicine Ultrastructure Cattle Female Corpus luteum hormones hormone substitutes and hormone antagonists |
| Zdroj: | Reproduction. 85:483-487 |
| ISSN: | 1741-7899 1470-1626 |
| DOI: | 10.1530/jrf.0.0850483 |
| Popis: | The cellular composition of CL from 6 cows on approximately Day 12 of the oestrous cycle, after synchronization with cloprostenol, was studied by ultrastructural morphometry. Point-count measurements of volume density (mean +/- s.d.) showed that large luteal cells occupied 40.2 +/- 7.0% of the luteal tissue, and small luteal cells 27.7 +/- 6.3%. Of the total of 393.4 +/- 52.0 x 10(3) cells per mm3 of luteal tissue, large luteal cells made up only 3.5% and small luteal cells 26.7%, a ratio of 1:7.6. Endothelial cells/pericytes, at 52.3%, were the most numerous cell type. The mean volume per large luteal cell was 29.6 +/- 6.3 x 10(3) microns 3, while that of small luteal cells was 2.7 +/- 0.4 x 10(3) microns 3. In spherical form, these volumes would represent mean diameters of 38.4 microns and 17.2 microns respectively, and are consistent with published measurements on dispersed luteal cells. However, the values for cell numbers are much higher than published values based on luteal tissue dispersion, suggesting that dispersion may result in substantial and possibly selective losses of luteal cells. |
| Databáze: | OpenAIRE |
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