FETAL MUMMIFICATION: ALTERATION OF PLACENTAL COLLAGEN IN SOWS.
DOI:
https://doi.org/10.63207/ai.v8i15.162Keywords:
placenta, extracellular matrix, mummification, porcineAbstract
The objective was to determine the location of collagen in porcine placentas from mummified fetuses according to the thickness fiber. Placentas from crossbred sows from farms in the south of the province of Córdoba were collected after delivery and were processed. The fetoplacental units with mummified fetuses were selected and the gestational age was determined. Placentas of 60 and 90 days of pregnancy were collected. Collagen was evaluated through the Picrosirius-Polarization method. The arrangement of collagen fibers and the birefringence distribution were analyzed using the High Score value. The results were statistically analyzed and compared with previous studies carried in placentas from fetuses born alive. An association between the placental condition and the presence of fibers was determined. In placentas of mummified fetuses, a weak presence of fibers corresponding to collagen type I surrounded by large fibers of collagen type III were observed. An optimal placental microenvironment is essential for the development of physiological processes involved in maintaining pregnancy. An extracellular matrix with alterations in the composition and distribution of collagen would induce changes in the microenvironment incompatible with the normal development of gestation and fetal viability.
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