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Ovarian Puncture Triggers an Inflammatory Response that did not Affect Late Folliculogenesis, Ovulation Rate, and Fertility
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Ovarian Puncture Triggers an Inflammatory Response that did not Affect Late Folliculogenesis, Ovulation Rate, and Fertility
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Journal Article
Ovarian Puncture Triggers an Inflammatory Response that did not Affect Late Folliculogenesis, Ovulation Rate, and Fertility
2024
Overview
Ovarian puncture has been widely used in assisted reproduction, but there are still gaps about its effects on ovarian morphophysiology, as well as the relationship between inflammation caused by this procedure and the follicular growth and fertility. The aim of this study was to investigate the effects of ovarian puncture on folliculogenesis and fertility. Mice (
n
= 24) were divided into two groups: (1) SHAM—both ovaries were exposed and repositioned and (2) Punctured—ovaries were exposed, punctured, and repositioned. After 96 h of surgery, ovaries were collected for morphofunctional analysis. New females were used for the superovulation (
n
= 10) and fertility assays (
n
= 10). Increased volumetric density of inflammatory cells—
p
= 0.0005,
p
= 0.0013; hemorrhagic foci—
p
< 0.0001; and inflammatory exudate—
p
< 0.0001 could be noticed on the punctured group, compared to SHAM. The percentage of primordial follicles was lower on the punctured ovaries (
p
= 0.00294). Ovarian puncture has also induced an increase in the proliferation of granulosa cells of primary (
p
= 0.0321) and antral follicles (
p
= 0.0395), and an increased apoptotic index of antral follicles (
p
= 0.0100). There was no influence on expression of some genes related to inflammation, collagen deposition and folliculogenesis progression. The reproductive aspects (oocyte retrieval and number of fetuses per female) were not altered (
p
> 0.05). Taken together, our findings strongly suggest that ovarian puncture results in a local inflammation that affects follicular growth and atresia. However, it does not affect female fertility, which strengthens the safety of this procedure.
Publisher
Springer International Publishing
