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Pereira LAAC, Ferreira CS, Dias KSSA, Nogueira JM, Pinto FCH, Jorge EC, Campos-Junior PHA. Ovarian Puncture Triggers an Inflammatory Response that did not Affect Late Folliculogenesis, Ovulation Rate, and Fertility. Reprod Sci 2024:10.1007/s43032-024-01654-0. [PMID: 39043998 DOI: 10.1007/s43032-024-01654-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 07/11/2024] [Indexed: 07/25/2024]
Abstract
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.
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Affiliation(s)
| | - Camila Stefane Ferreira
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Karine Sthéfany Serpa Amaral Dias
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Júlia Meireles Nogueira
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Flávia Carmo Horta Pinto
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Erika Cristina Jorge
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Paulo Henrique Almeida Campos-Junior
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil.
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Nascimento BC, Ferreira CS, Oliveira SP, Pereira LAAC, Lopes GA, Nogueira JM, Paula RS, Jorge EC, Campos-Junior PHA. Naproxen administration affects murine late folliculogenesis, reduces granulosa cell proliferation and the number of ovulated oocytes. Reprod Toxicol 2024; 124:108527. [PMID: 38160782 DOI: 10.1016/j.reprotox.2023.108527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Naproxen reduces the production of prostaglandins via inhibition of the cyclooxygenase. Studies have shown that its administration in women can be related to failed ovulation. Therefore, preclinical investigations must be performed in order to investigate its effects in experimental models. Thus, the aim of this study was to evaluate the effects of naproxen on murine folliculogenesis, ovulation, and female fertility. Female C57BL/6 mice (n = 128 - 6 weeks old) were divided into Control, low (10 mg/kg), and high naproxen (50 mg/kg) groups, who were treated for 8 days and directed to morphofunctional analyses. Follicular quantification showed a reduced percentage of antral follicles in naproxen-treated animals. These treated animals also showed smaller oocytes included in secondary and antral follicles, and the diameter of secondary and antral follicles was also reduced. A reduction in the percentage of Ki67-positive granulosa cells was observed in treated animals that also showed down-regulation of Igf1r compared to control. After an ovarian stimulation protocol, naproxen-treated animals showed a reduction in the percentage of secondary and antral follicles, a reduced number of ovulated oocytes and, corpora lutea, and an increased number of failed ovulations. Finally, naproxen-treated animals also showed a reduction in mating index and pregnancy rate. Our findings suggested that, in mice, naproxen administration (eight days treatment) negatively affects molecular and morphological aspects related to late folliculogenesis, ovulation, and fertility.
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Affiliation(s)
- Bernardo Camara Nascimento
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Camila Stefane Ferreira
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Stella Pollyanne Oliveira
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | | | - Guilherme Antonio Lopes
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil
| | - Júlia Meireles Nogueira
- Departament of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Rayan Silva Paula
- Departament of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Erika Cristina Jorge
- Departament of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Paulo Henrique Almeida Campos-Junior
- Laboratory for Reproductive Biology Research, Department of Natural Sciences, Federal University of São João del Rei, São João Del-Rei, MG, Brazil.
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