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Acta Veterinaria Hungarica
Barbara Wąsowska
Beata Ludkiewicz
Stanisława Stefańczyk-Krzymowska
W. Grzegorzewski
, and
Janina Skipor

It has been reported that apoptosis plays an essential role in controlling the physiological cell kinetics in the human and rodent endometrium but this type of death has never been studied in the porcine endometrium. The aim of this study was to investigate the apoptotic cell death in the porcine endometrium during the middle (Days 9–11) and late (Day 13) luteal phase, during the luteolysis (Day 15) and early follicular phase (Days 17–19) of the oestrous cycle. Apoptotic cells were identified by in situ DNA 3′-end labelling method. it was revealed that the greatest number of apoptotic cells in the luminal and glandular epithelium was found on Days 17–19 and on Day 15 of the oestrous cycle, respectively. in the stroma, the greatest number of these cells was found on Days 9–11. Our data have shown that in the porcine endometrium, both epithelial and stromal cells undergo apoptosis and that the number of apoptotic cells varies depending on the phase of the oestrous cycle.

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