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Almeida JZ, Vieira LA, Maside C, Ferreira ACA, Sá NAR, Correia HHV, Araújo VR, Raposo RS, Smitz J, Campello CC, Figueiredo JR, Oriá RB. In vitro cytotoxic effects of 5-Fluorouracil on isolated murine ovarian preantral follicles. Theriogenology 2022; 178:60-66. [PMID: 34775200 DOI: 10.1016/j.theriogenology.2021.10.023] [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: 07/02/2021] [Revised: 10/16/2021] [Accepted: 10/20/2021] [Indexed: 12/01/2022]
Abstract
5 fluorouracil (5FU), an antineoplastic drug, is often utilized in the therapeutic regimen for several types of cancer, including the hepatoblastoma in children. The effects of 5FU on the population of ovarian preantral follicles, which is the largest oocyte reservoir, is still poorly understood. The integrity of the ovarian preantral follicle pool is important for lifelong fertility. The better understanding of such effects may favor intervention strategies to protect fertility in 5FU-treated children and women coping with cancer. To analyze the effects of 5FU on isolated murine secondary follicles in vitro, ovaries were collected from young mice (28-30 days old), and secondary follicles were isolated and cultured for 12 days in basic culture medium, with or without 5FU at concentrations of 0.3 mM, 1 mM, 3 mM, 10 mM, and 30 mM. In the in vitro study, we analyzed the percentage of morphologically normal follicles, antrum formation, follicular diameter, and hormone production. On day 12, oocytes were recovered for in vitro maturation. 5FU treatment did not alter the percentage of morphologically normal follicles. On day 12, only 1, 10, and 30 mM 5FU significantly reduced the percentage of antrum. From day 4 onwards, 5FU treatments significantly reduced follicle diameter. The meiosis resumption rate was significantly lower in all 5FU treatments. 5FU concentrations ≥3 mM reduced estradiol levels. In conclusion, 5FU does not affect follicular morphology. However, 5FU deleteriously affects follicular growth, estradiol production, and oocyte maturation in isolated ovarian follicles.
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Affiliation(s)
- Juliana Z Almeida
- Laboratory of Tissue Healing, Ontogeny, and Nutrition (LABICONTE), Department of Morphology, Institute of Biomedicine, School of Medicine, Federal University of Ceara (UFC), 1315 Rua Cel. Nunes de Melo, Fortaleza, CE, 60430-270, Brazil
| | - L A Vieira
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - C Maside
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - A C A Ferreira
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - N A R Sá
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - H H V Correia
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - V R Araújo
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - R S Raposo
- Experimental Biology Center, University of Fortaleza (UNIFOR), 1321 Av. Washington Soares, Fortaleza, CE, 60811-905, Brazil
| | - J Smitz
- Laboratory of Follicle Biology, Center for Reproductive Medicine, UZ Brussel, Laarbeeklaan 101, Brussels, B-1090, Brazil
| | - C C Campello
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil
| | - J R Figueiredo
- Faculty of Veterinary Medicine, Laboratory of Oocytes and Preantral Follicles Manipulation (LAMOFOPA), State University of Ceara (UECE), 1700 Av. Dr. Silas Munguba, Fortaleza, CE, 60741-000, Brazil.
| | - R B Oriá
- Laboratory of Tissue Healing, Ontogeny, and Nutrition (LABICONTE), Department of Morphology, Institute of Biomedicine, School of Medicine, Federal University of Ceara (UFC), 1315 Rua Cel. Nunes de Melo, Fortaleza, CE, 60430-270, Brazil
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de Figueiredo JR, Cadenas J, de Lima LF, Santos RR. Advances in in vitro folliculogenesis in domestic ruminants. Anim Reprod 2020; 16:52-65. [PMID: 33936289 PMCID: PMC8083813 DOI: 10.21451/1984-3143-ar2018-123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 02/18/2019] [Indexed: 01/27/2023] Open
Abstract
The in vitro follicle culture (IVFC) represents an outstanding tool to enhance our understanding of the control of folliculogenesis and to allow the future use of a large number of immature oocytes enclosed in preantral follicles (PFs) in assisted reproductive techniques in humans as well as in others mammalian species including the ruminants. So far, the best results of IVFC were reported from mice with the production of live offspring from primordial follicles cultured in vitro. Live birth has been obtained after the in vitro culture of bovine early antral follicles. However, in other ruminant species, these results have been limited to the production of a variable number of mature oocytes and low percentages of embryos after in vitro culture of goat, buffalo and sheep isolated secondary preantral follicles. The present review presents and discusses the main findings, limitations, and prospects of in vitro folliculogenesis in ruminants focusing on bovine, caprine, and ovine species.
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Affiliation(s)
- José Ricardo de Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Fortaleza CE, Brazil
| | - Jesús Cadenas
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Fortaleza CE, Brazil
| | - Laritza Ferreira de Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Fortaleza CE, Brazil
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3
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Ferreira ACA, Sá NAR, Cadenas J, Correia HHV, Guerreiro DD, Alves BG, Lima LF, Celestino JJH, Rodrigues APPR, Gastal EL, Figueiredo JR. Pituitary porcine FSH, and recombinant bovine and human FSH differentially affect growth and relative abundances of mRNA transcripts of preantral and early developing antral follicles in goats. Anim Reprod Sci 2020; 219:106461. [PMID: 32828391 DOI: 10.1016/j.anireprosci.2020.106461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 01/09/2023]
Abstract
Three different sources of FSH (porcine pituitary, pFSH; recombinant bovine, rbFSH; and recombinant human, rhFSH) were compared during in vitro culture of preantral and early antral follicles of goats for 18 days. Treatments were: base medium supplemented with no FSH (control), 10, 50, or 100 mIU/mL pFSH (pFSH10, pFSH50, and pFSH100, respectively), 100 ng/mL rbFSH (rbFSH), and 50 mIU/mL rhFSH (rhFSH). There were evaluations of follicle morphology, antrum formation, growth rate, estradiol production, oocyte viability and chromatin configuration, and follicle wall relative abundance of mRNA transcript for MMP-9, TIMP-2, CYP17, CYP19A1, FSHR, Insulin-R, and BAX/BCL-2 ratio. Follicle degeneration rates were similar among all treatment groups at the end of culturing. When there were treatments with pFSH, however, there was a lesser (P < 0.05) percentage of intact follicles and estradiol production, and greater (P < 0.05) extrusion rates. Furthermore, with only pFSH10 (antral follicles) and pFSH100 (preantral and antral follicles) treatments, there was a lesser (P < 0.05) follicle growth. For preantral follicles, when there was addition of pFSH10, pFSH100, and rhFSH there was lesser (P < 0.05) oocyte meiotic resumption compared to control and rbFSH treatments. For antral follicles, when there were treatments with rhFSH and pFSH10 there was greater (P = 0.08 - P < 0.05) oocyte maturation. In conclusion, the source of FSH differentially affected gene expression, as indicated by mRNA abundances, and follicular dynamics of preantral and antral follicles in vitro. Addition of FSH during the in vitro culture improved the developmental outcomes only for antral follicles.
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Affiliation(s)
- Anna Clara A Ferreira
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Naiza A R Sá
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Jesús Cadenas
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Hudson H V Correia
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Denise D Guerreiro
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Benner G Alves
- Postgraduate Program in Animal Bioscience, Federal University of Goiás, Jataí, GO, Brazil
| | - Laritza F Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Juliana J H Celestino
- Institute of Health Sciences, University of International Integration of Afro-Brazilian Lusophony, Acarape, CE, Brazil
| | - Ana Paula P R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Eduardo L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, United States
| | - Jose R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil.
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Barros VRP, Monte APO, Lins TLBG, Santos JM, Menezes VG, Cavalcante AYP, Araújo VR, Gouveia BB, Matos MHT. In vitro survival, growth, and maturation of sheep oocytes from secondary follicles cultured in serum-free conditions: impact of a constant or a sequential medium containing recombinant human FSH. Domest Anim Endocrinol 2019; 67:71-79. [PMID: 30765293 DOI: 10.1016/j.domaniend.2018.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 12/16/2022]
Abstract
This study evaluated the in vitro development and maturation of ovine oocytes from secondary follicles cultured in serum-free medium containing fixed or sequential concentrations of recombinant human FSH (rhFSH). Follicles were cultured in α-MEM+ alone or with constant (500, 750, or 1,000 ng/mL) or sequential concentrations of rhFSH (seq. 1: day 6 = 500; day 12 = 750; day 18 = 1,000 ng/mL and seq. 2: day 6 = 100; day 12 = 500; day 18 = 1,000 ng/mL). At the end of the experiment, follicular survival was higher (P < 0.05) in 750 ng/mL rhFSH than the control and 1,000 ng/mL rhFSH. As early as day 6 of culture, antral cavity formation was observed in all treatments. Follicular diameter increased progressively and significantly in all treatments throughout 18 d of culture. Furthermore, addition of rhFSH to the medium promoted a significant increase in the percentage of fully grown oocytes in all treatments compared to α-MEM+. Mitochondrial activity was higher in rhFSH treatments than in the control, except in rhFSH seq. 2 (P < 0.05). Maturation rates increased in oocytes from intact follicles cultured in 750 ng/mL rhFSH compared to the control (P < 0.05). In conclusion, rhFSH at 750 ng/mL maintained the survival of secondary follicles cultured in serum-free medium, improved oocyte growth, mitochondrial activity, and oocyte maturation.
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Affiliation(s)
- V R P Barros
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - A P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - T L B G Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - J M Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - V G Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - A Y P Cavalcante
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - V R Araújo
- Health Center Science, State University of Ceará, 60714-903 Fortaleza, CE, Brazil
| | - B B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil
| | - M H T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE 56300-990, Brazil.
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Ferreira ACA, Cadenas J, Sá NAR, Correia HHV, Guerreiro DD, Lobo CH, Alves BG, Maside C, Gastal EL, Rodrigues APR, Figueiredo JR. In vitro culture of isolated preantral and antral follicles of goats using human recombinant FSH: Concentration-dependent and stage-specific effect. Anim Reprod Sci 2018; 196:120-129. [PMID: 30049427 DOI: 10.1016/j.anireprosci.2018.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/28/2018] [Accepted: 07/16/2018] [Indexed: 01/05/2023]
Abstract
The present study aimed to investigate a concentration-response curve of human recombinant FSH (hrFSH) for in vitro culture of isolated preantral and early antral follicles of goats. Isolated follicles were cultured for 18 days using the following treatments: basic culture medium (control); or control medium supplemented with 10, 50, and 100 mIU/mL of hrFSH. At the end of the culture, cumulus-oocyte complexes were recovered and subjected to in vitro maturation. The following endpoints were evaluated: follicle morphology, growth rate and antrum formation, oocyte viability and meiotic stage, and estradiol production, as well as relative expression of FSH receptor (FSHR), and steroidogenic enzyme (3β-HSD, CYP17, and CYP19A1) genes. In antral follicles, the FSH addition at 50 mIU/mL increased follicular diameter and growth rate, percentage of fully developed oocytes, and oocyte diameter (P < 0.05), and tended to increase the percentage of MII oocytes when compared to the control (P = 0.07). With preantral follicles, FSH addition at 100 mIU/mL increased relative abundance of mRNA for CYP19A1 when compared to the control (P < 0.05). At the same FSH concentrations of 100 and 50 mIU/mL, there was a greater relatively abundance of mRNA for 3β-HSD and CYP17 in preantral than in antral follicles (P < 0.05). For preantral and antral follicle comparisons when the same treatments were imposed, there were greater concentrations of estradiol for antral follicles (P < 0.05). In conclusion, hrFSH enhanced in a concentration-dependent manner the in vitro development of caprine antral follicles; however, there was no positive effect in the culture of preantral follicles.
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Affiliation(s)
- Anna Clara A Ferreira
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Jesús Cadenas
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Naiza A R Sá
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Hudson H V Correia
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Denise D Guerreiro
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - Carlos H Lobo
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Benner G Alves
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Carolina Maside
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, Murcia, Spain
| | - Eduardo L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, United States
| | - Ana Paula R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - José Ricardo Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil.
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Cadenas J, Maside C, Ferreira A, Vieira L, Leiva-Revilla J, Paes V, Alves B, Brandão F, Rodrigues A, Wheeler M, Figueiredo J. Relationship between follicular dynamics and oocyte maturation during in vitro culture as a non-invasive sign of caprine oocyte meiotic competence. Theriogenology 2018; 107:95-103. [DOI: 10.1016/j.theriogenology.2017.10.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/29/2017] [Accepted: 10/29/2017] [Indexed: 11/16/2022]
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de Lima LF, Rubessa M, Rocha RMP, Winters R, Milner DJ, Campello CC, Figueiredo JR, Wheeler MB. High diluted and dynamised follicle stimulating hormone modulates steroid production in isolated porcine preantral follicles cultured in vitro. HOMEOPATHY 2018; 106:87-92. [DOI: 10.1016/j.homp.2017.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 03/09/2017] [Accepted: 03/16/2017] [Indexed: 12/25/2022]
Abstract
Objective:
This study investigated the effect of two different follicle stimulating hormone (FSH) preparations (diluted/dynamised and diluted) on the in vitro development and steroid production (estradiol, progesterone and testosterone) of isolated porcine preantral follicle after in vitro culture.
Methods:
Secondary follicles were cultured in Alpha Minimum Essential Medium (α-MEM+) supplemented with grain ethanol (AL – 0.2%, v/v), diluted/dynamised FSH (rFSH 6cH – 0.05 fg/mL) or diluted-only FSH (1.5 ng/mL) for 4 days. Follicle development was evaluated on the basis of follicular growth, morphology and hormone production.
Results:
The percentage of follicular integrity and extrusion were not affected by the treatments after culture. For all treatments, follicular diameter increased significantly from Day 0 to Day 4. On Day 2 of culture, the estradiol production was significantly higher in AL and diluted-only FSH treatments compared with diluted/dynamised FSH. However, diluted/dynamised FSH showed a significantly higher progesterone production on Day 2. Only on Day 4, the testosterone production was higher in the AL than diluted-only FSH treatments, but similar to diluted/dynamised FSH treatment. Except for diluted/dynamised FSH treatment, progesterone production increased (P < 0.05) from Day 2 to Day 4; only for AL treatment, a significant increase of testosterone production was observed during culture.
Conclusion:
Compared to control the diluted/dynamised FSH addition increased progesterone production but decreased the estradiol production after in vitro culture of isolated porcine preantral follicles. Taken together the results suggest that at least for progesterone production the mechanism of action of diluted/dynamised FSH differs from its vehicle.
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Affiliation(s)
- Laritza F de Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Itaperi Campus, 60740-903, Fortaleza, CE, Brazil
| | - Marcello Rubessa
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Rebeca MP Rocha
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Itaperi Campus, 60740-903, Fortaleza, CE, Brazil
| | - Rebecca Winters
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, Urbana, IL, United States
| | - Derek J Milner
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Claudio C Campello
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Itaperi Campus, 60740-903, Fortaleza, CE, Brazil
| | - José R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Itaperi Campus, 60740-903, Fortaleza, CE, Brazil
| | - Matthew B Wheeler
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, Urbana, IL, United States
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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Lima LF, Rocha RMP, Duarte ABG, Brito IR, Silva GM, Rodrigues GQ, Nunes-Pinheiro DCS, Sales AD, Moura AA, Wheeler MB, Rodrigues APR, Campello CC, Figueiredo JR. Unexpected effect of the vehicle (grain ethanol) of homeopathic FSH on the in vitro survival and development of isolated ovine preantral follicles. Microsc Res Tech 2017; 80:406-418. [PMID: 27921341 DOI: 10.1002/jemt.22810] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 09/20/2016] [Accepted: 11/08/2016] [Indexed: 12/25/2022]
Abstract
The aims of this study were to investigate the effects of medium replacement system (experiment I) and of FSH presentations (homeopathic - FSH 6cH and allopathic FSH - rFSH; experiment II) on the in vitro development, hormone production and gene expression of isolated ovine preantral follicles cultured for 6 days. In experiment I, secondary follicles were cultured in the α-MEM+ supplemented with FSH 6cH (0.05 fg/ml) or recombinant bovine FSH (100 ng/ml) without/with daily medium addition. The homeopathic FSH treatments with/without medium addition improved (p < .05) follicular development compared to rFSH100 treatment without addition. FSH 6cH with addition showed the highest (p < .05) estradiol production. To verify whether the effects of homeopathic FSH were not due to its vehicle, experiment II was performed. The α-MEM+ was supplemented or not with alcohol (0.2% grain ethanol, v/v), FSH 6cH or rFSH100 with daily medium addition. Surprisingly, we found that all treatments improved follicular development compared to the α-MEM+ (p < .05). Moreover, homeopathic FSH was similar to the other treatments including its vehicle. In conclusion, its vehicle (ethanol) causes the effect of homeopathic FSH on in vitro development of isolated ovine preantral follicles.
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Affiliation(s)
- Lartiza F Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Rebeca M P Rocha
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Ana Beatriz G Duarte
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Ivina R Brito
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Gerlane M Silva
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Giovanna Q Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Diana C S Nunes-Pinheiro
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Antônia D Sales
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Arlindo A Moura
- Group of Research in Biology of Reproduction - Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Matthew B Wheeler
- Department of Animal Sciences, University of Illinois, Urbana-Champaign, Urbana, Illinois
| | - Ana Paula R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - Cláudio C Campello
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
| | - José Ricardo Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles Department of Faculty of Veterinary, State University of Ceara, Itaperi Campus, Fortaleza, CE, 60740-903, Brazil
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