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Brandão FA, de Brito DC, Pereira LM, Alves KA, Ñaupas LV, de Souza SS, de S Cunha DM, de S Filho RP, Alves BG, Rodrigues AP, Teixeira DI. Effects of different subcutaneous sites on heterotopic autotransplantation of canine ovarian tissue. Vet Res Commun 2023; 47:1893-1905. [PMID: 37198523 DOI: 10.1007/s11259-023-10139-5] [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: 02/08/2023] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Abstract
Ovarian tissue transplantation makes it possible to restore fertility; however, the success of this technique depends on the transplant region used. Therefore, this study aimed to evaluate the effect of two subcutaneous regions on canine ovarian transplantation, pinna (Pi) and neck (Ne), for 7 and 15 days. Ovaries collected by ovariosalpingohysterectomy were fragmented using a punch device. Fresh fragments were fixed, and the others were immediately grafted onto the animal itself in the Pi and Ne regions for 7 and 15 days. Recovered fragments were evaluated for histology (morphology, development and stromal density), picrosirius (collagen fibers), and immunohistochemistry (fibrosis and cell proliferation). The results showed that follicular normality rates were lower in Pi-7 (78%) vs. control (90%) and Pi-15 (86%), similar in Ne-7 (92%) and superior in Ne-15 (97%) compared to the control, with the effect of the region Ne (94%) superior (P < 0.05) to Pi (82%). Stromal density reduced in both regions vs. control but was similar within 15 days. Fragments from both regions showed higher fibronectin labeling and deposition of type I and lower type III collagen fibers (P < 0.05) vs. control. Proliferation rates in Ne-7 were higher (P < 0.05) than in control, and Pi-15 was higher (P < 0.05) than Ne-15. In conclusion, the pinna may be a region with greater potential than the neck after a 15-day autotransplantation of canine ovarian tissue.
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Affiliation(s)
- Fabiana As Brandão
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | - Danielle Cc de Brito
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | - Leda Mc Pereira
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | | | - Lucy Vs Ñaupas
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | - Samara S de Souza
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | - Duanny M de S Cunha
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil
| | - Reginaldo P de S Filho
- Cardoso Veterinary Hospital, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | | | - Ana Pr Rodrigues
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary Medicine, State University of Ceará, Fortaleza, CE, Brazil
| | - Dárcio Ia Teixeira
- Diagnostic Imaging Laboratory Applied to Reproduction, Faculty of Veterinary Medicine, State University of Ceará, Av. Dr. Silas Munguba, Campus Itaperi. Fortaleza-CE- 60, Fortaleza, CE, 1700, 714-903, Brazil.
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Serum antimüllerian hormone concentrations in female cats. Relation with ovarian remnant syndrome, ovarian cysts and gonadectomy status. Theriogenology 2023; 200:106-113. [PMID: 36805247 DOI: 10.1016/j.theriogenology.2023.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 02/12/2023]
Abstract
The aim of this study was to reveal (1) the determination of the serum antimüllerian hormone concentrations in cats with ovarian remnant syndrome and ovarian cyst, (2) the effectiveness of the serum antimüllerian hormone concentrations in detecting gonadectomy status, and (3) ovarian expression of the antimüllerian hormone in the ovarian cysts and ovarian remnant tissue. For this purpose, a total of 31 domestic cats older than 1 year, including ORS (n = 9), OC (n = 3), spayed (n = 8), and intact (n = 11), were used in the study. Serum and intrafollicular AMH concentrations were determined by the electrochemiluminescence immunoassay, and expression of the AMH was determined by the immunohistochemical method. The serum AMH concentration in the ORS group was 1.49 ± 1.24 ng/ml (0.10-3.63 ng/ml) whereas it was 1.78 ± 0.92 ng/ml (0.8-2.63 ng/ml) in the OC group. AMH concentration in the intrafollicular fluid was determined as 0.023 ng/ml in a cat with an ovarian cyst. While the serum AMH concentration was below 0.01 ng/ml in spayed cats, it was 5.80 ± 3.30 ng/ml (1.88-11.86 ng/ml) in the intact cats. There was a significant difference between the spayed and intact groups in terms of serum AMH concentration (p < 0.05). Moreover, in cats with ovarian cyst and ovarian remnant syndrome, no difference was found between the groups in terms of serum AMH concentration (p > 0.05). No difference was found between the ovarian remnant syndrome and intact cats in terms of serum AMH concentration (p > 0.05). In immunohistochemical staining, ovarian cysts were found to be negative for AMH while a moderate (+2) AMH positivity was observed in other follicles. Furthermore, in cats with ovarian remnant syndrome, severe (+3) AMH positivity was observed. As a result, it was determined that gonadectomy status can be accurately diagnosed by the AMH measurement. Ovarian remnant syndrome cannot be diagnosed accurately by AMH measurement. In addition, it was found that AMH did not seem to play a role in the pathogenesis of ovarian cysts in cats.
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Dehghan M, Shahbazi S, Salehnia M. Follicular development and the expression of BAX and vascular endothelial growth factor in transplanted ovaries in uni- and bilateral ovariectomized mice: An experimental study. Int J Reprod Biomed 2021; 19:361-370. [PMID: 33997595 PMCID: PMC8106821 DOI: 10.18502/ijrm.v19i4.9062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 08/15/2020] [Accepted: 10/12/2020] [Indexed: 11/24/2022] Open
Abstract
Background Several conflicting results have been reported on the survival and function of transplanted ovaries. Objective Evaluation of the follicular development and the expression of vascular endothelial growth factor (VEGF) and Bcl-2-associated X protein (BAX) in ovaries transplanted into uni- and bilaterally ovariectomized mice. Materials and Methods In this experimental study, 40 female NMRI mice (21-days-old, 12-15 gr) were ovariectomized uni- and bilaterally (n = 20/ group), while the 8-wk-old mice were considered as intact control group (n = 6). 5 weeks after transplantation at the proestrus stage, the morphology of recovered transplanted ovaries and the proportion of follicles were studied at different developmental stages. The apoptosis cell death by pro-apoptotic protein BAX and the expression of VEGF were evaluated using immunohistochemistry. Results In the bilaterally ovariectomized mice, among the 455 counted normal follicles, a lower rate of primordial and primary follicles and a higher rate of preantral and antral follicles were observed (p = 0.002). However, the percentages of preantral and antral follicles, and the corpus luteum were significantly lower in the intact control group (among the 508 counted normal follicles in this group) compared to other transplanted groups (p = 0.002). The number of BAX-positive cells in all groups was not significantly different. The VEGF expression was prominent in vessels of the corpus luteum, and also in the theca layer of large follicles of studied groups. Conclusion Early discharge of ovarian reserve was prominent in the bilaterally ovariectomized group but the incidence of apoptotic cells and VEGF expression as angiogenic factor did not differ in both ovariectomized mice. Thus, unilaterally ovariectomy has less side effects on the ovarian reserve compared to bilateral ovariectomy.
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Affiliation(s)
- Maryam Dehghan
- Anatomy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Shirin Shahbazi
- Medical Genetic Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mojdeh Salehnia
- Anatomy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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