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de Oliveira Ferreira R, Guimarães ATB, Rocha TL, de Lima Rodrigues AS, de Oliveira Mendes B, Mesak C, Malafaia G. The potential reproductive toxicity of tannery effluent to the estrous cycle and ovarian follicular dynamics of female Swiss mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:36355-36367. [PMID: 30368706 DOI: 10.1007/s11356-018-3527-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/17/2018] [Indexed: 06/08/2023]
Abstract
Although the toxic effects of tannery effluent (TE) on tanning-industry workers have been reported in many studies, its effects on females' reproductive system are unknown. We aimed at evaluating the effects of direct contact with TE on the "emotional" status, estrous cycle (during 15 consecutive exposure days), and ovarian follicular dynamics of female Swiss mice at the end of the experiment to broaden the knowledge about the toxicity of this pollutant. The herein adopted exposure protocol simulated tanning-industry workers' exposure to TE. The test animals were subjected to 45 exposure days, for 1 h a day, 5 days a week (from Monday to Friday). Based on the collected data, female mice exposed to TE recorded high anxiety index in the elevated plus maze test, although we did not observe changes in their estrous cycle. The smaller total and specific number of ovarian follicles (types 1 to 6) and the higher frequency of degenerating follicles (atresic) in female mice exposed to TE marked the folliculogenesis reduction in them. Therefore, our study was the first to provide evidences that the exposure to TE can cause reproduction issues in female mice, as well as the first experimental insight about the impact of unhealthy work activities in tanning industries on women's reproductive system.
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Affiliation(s)
- Raíssa de Oliveira Ferreira
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Aline Sueli de Lima Rodrigues
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Bruna de Oliveira Mendes
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Carlos Mesak
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil.
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Silva JRV, van den Hurk R, Figueiredo JR. Ovarian follicle development in vitro and oocyte competence: advances and challenges for farm animals. Domest Anim Endocrinol 2016; 55:123-35. [PMID: 26836404 DOI: 10.1016/j.domaniend.2015.12.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/14/2015] [Accepted: 12/31/2015] [Indexed: 10/22/2022]
Abstract
During the last 2 decades, research on in vitro preantral follicle growth and oocyte maturation has delivered fascinating advances concerning the knowledge of processes regulating follicle growth and the developmental competence of oocytes. These advances include (1) information about the role of several hormones and growth factors on in vitro activation of primordial follicles; (2) increased understanding of the intracellular pathway involved in the initiation of primordial follicle growth; (3) the growth of primary and secondary follicles up to antral stages; and (4) production of embryos from oocytes from in vitro grown preantral follicles. This review article describes these advances, especially in regard farm animals, and discusses the reasons that limit embryo production from oocytes derived from preantral follicles cultured in vitro.
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Affiliation(s)
- J R V Silva
- Biotechnology Nucleus of Sobral, Federal University of Ceara, Sobral, CE 62042-280, Brazil.
| | - R van den Hurk
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht 80151, The Netherlands
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Fortaleza, CE 62700-000, Brazil
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Rocha RMP, Lima LF, Carvalho AA, Chaves RN, Bernuci MP, Rosa-e-Silva ACJS, Rodrigues APR, Campello CC, Figueiredo JR. Immunolocalization of the Anti-Müllerian Hormone (AMH) in Caprine Follicles and the Effects of AMH on In Vitro Culture of Caprine Pre-antral Follicles Enclosed in Ovarian Tissue. Reprod Domest Anim 2016; 51:212-9. [PMID: 26834019 DOI: 10.1111/rda.12668] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/02/2016] [Indexed: 11/28/2022]
Abstract
The aims of this study were to evaluate the localization, by immunohistochemistry, of the anti-Müllerian hormone (AMH) in goat ovaries and to investigate its effects on the in vitro survival and development of caprine pre-antral follicles enclosed in fragments of ovarian tissue. Pre-antral follicles were cultured in vitro for 1 or 7 days in α-MEM(+) in the absence or presence of kit ligand (KL; 50 ng/ml, positive control) or AMH (50 or 150 ng/ml). The results showed that AMH was localized in oocytes and granulosa cells from the primordial follicle to antral follicle stages. Addition of AMH maintained the percentage of developing follicles, similar to that in the uncultured control; however, the percentage of developing follicles was significantly lower than that in the cultured control and KL. Nonetheless, addition of AMH to the culture medium did not affect survival rates and follicular growth. In conclusion, this study demonstrated that the expression of AMH varies according to the compartment and stage of follicular development. Furthermore, AMH inhibits the activation of caprine primordial follicles.
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Affiliation(s)
- R M P Rocha
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - L F Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - A A Carvalho
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - R N Chaves
- Laboratory Morphofunctional, Health Sciences Center, University of Fortaleza, Fortaleza-CE, Brazil
| | - M P Bernuci
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirao Preto, University of São Paulo, Ribeirão Preto-SP, Brazil
| | - A C J S Rosa-e-Silva
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirao Preto, University of São Paulo, Ribeirão Preto-SP, Brazil
| | - A P R Rodrigues
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - C C Campello
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles- LAMOFOPA, Faculty of Veterinary Medicine, State University of Ceará, Fortaleza-CE, Brazil
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Effects of jacalin and follicle-stimulating hormone on in vitro goat primordial follicle activation, survival and gene expression. ZYGOTE 2014; 23:537-49. [DOI: 10.1017/s0967199414000173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
SummaryThis study aims to investigate the effects of jacalin and follicle-stimulating hormone (FSH) on activation and survival of goat primordial follicles, as well as on gene expression in cultured ovarian tissue. Ovarian fragments were cultured for 6 days in minimum essential medium (MEM) supplemented with jacalin (10, 25, 50 or 100 μg/ml – Experiment 1) or in MEM supplemented with jacalin (50 μg/ml), FSH (50 ng/ml) or both (Experiment 2). Non-cultured and cultured tissues were processed for histological and ultrastructural analysis. Cultured tissues from Experiment 2 were also stored to evaluate the expression of BMP-15, KL (Kit ligand), c-kit, GDF-9 and proliferating cell nuclear antigen (PCNA) by real-time polymerase chain reaction (PCR). The results of Experiment 1 showed that, compared with tissue that was cultured in control medium, the presence of 50 μg/ml of jacalin increased both the percentages of developing follicles and viability. In Experiment 2, after 6 days, higher percentages of normal follicles were observed in tissue cultured in presence of FSH, jacalin or both, but no synergistic interaction between FSH and jacalin was observed. These substances had no significant effect on the levels of mRNA for BMP-15 and KL, but FSH increased significantly the levels of mRNA for PCNA and c-kit. On the other hand, jacalin reduced the levels of mRNA for GDF-9. In conclusion, jacalin and FSH are able to improve primordial follicle activation and survival after 6 days of culture. Furthermore, presence of FSH increases the expression of mRNA for PCNA and c-kit, but jacalin resulted in lower GDF-9 mRNA expression.
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Portela A, Ribeiro R, Costa J, Rossi R, Passos J, Vasconcelos G, Donato M, Peixoto C, Saraiva M, van den Hurk R, Silva J. Effects of different concentrations of concanavalin A and follicle stimulating hormone on goat primordial follicles activation, survival and gene expression. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2013.10.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lima LFD, Rocha RMP, Alves AMCV, Saraiva MVA, Araújo VR, Lima IMT, Lopes CAP, Báo SN, Campello CC, Rodrigues APR, Figueiredo JRD. Dynamized follicle-stimulating hormone affects the development of ovine preantral follicles cultured in vitro. HOMEOPATHY 2013; 102:41-8. [PMID: 23290878 DOI: 10.1016/j.homp.2012.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 10/25/2012] [Accepted: 11/12/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the effect of dynamized follicle-stimulating hormone (FSH) on the survival, activation and growth of ovine preantral follicles (PFs) in vitro. METHODS Ovarian fragments were cultured for 1 or 7 days in alpha minimum essential medium (α-MEM(+)) control in the absence or presence of alcohol (Al control) or FSH (6cH, 12cH and 30cH) added at intervals of 24 or 48 h. The ovarian fragments were processed, coded and analyzed by a blinded observer by classical histology (CH), fluorescence microscopy (FM) and transmission electron microscopy (TEM). RESULTS After 7 days of culture, the group which to which FSH 6cH was added at 24 h intervals showed better rates of follicle survival and activation compared to α-MEM(+) control or Al control (p < 0.05). This group also showed higher follicle and oocyte growth than α-MEM(+) control (p < 0.05). FM and TEM techniques confirmed that FSH 6cH promoted viability and ultrastructural integrity of follicles after 7 days of culture. CONCLUSIONS FSH 6cH (24 h) treatment maintained the viability, and promoted the activation and in vitro growth of ovine PFs.
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Affiliation(s)
- Laritza Ferreira de Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza-CE, Brazil.
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Magalhães-Padilha DM, Geisler-Lee J, Wischral A, Gastal MO, Fonseca GR, Eloy YRG, Geisler M, Figueiredo JR, Gastal EL. Gene Expression During Early Folliculogenesis in Goats Using Microarray Analysis. Biol Reprod 2013; 89:19. [PMID: 23759311 DOI: 10.1095/biolreprod.112.106096] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Understanding of gene expression and metabolic, biological and physiological pathways in ovarian follicular development can have a significant impact on the dynamics of follicular atresia or survival. In fact, some oocyte loss occurs during the transition from secondary to early tertiary follicles. This study aimed to understand, by microarray analysis, the temporal changes in transcriptional profiles of secondary and early antral (tertiary) follicles in caprine ovaries. Ovarian follicles were microdissected and pooled to extract total RNA. The RNA was cross hybridized with the bovine array. Among 23,987 bovine genes, a total of 14,323 genes were hybridized with goat mRNAs while 9,664 genes were not. Of all the hybridized genes, 2,466 were stage-specific, up- and down-regulated in the transition from secondary to early tertiary follicles. Gene expression profiles showed that three major metabolic pathways (lipid metabolism, cell death, and hematological system) were significantly differentiated between the two follicle stages. In conclusion, this study has identified important genes and pathways which may potentially be involved in the transition from secondary to early tertiary follicles in goats.
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Passos M, Vasconcelos G, Silva A, Brito I, Saraiva M, Magalhães D, Costa J, Donato M, Ribeiro R, Cunha E, Peixoto C, Campello C, Figueiredo J, van den Hurk R, Silva J. Accelerated growth of bovine preantral follicles in vitro after stimulation with both FSH and BMP-15 is accompanied by ultrastructural changes and increased atresia. Theriogenology 2013; 79:1269-77. [DOI: 10.1016/j.theriogenology.2013.02.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 02/22/2013] [Accepted: 02/23/2013] [Indexed: 11/28/2022]
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Vasconcelos GL, Saraiva MVA, Costa JJN, Passos MJ, Silva AWB, Rossi RODS, Portela AMLR, Duarte ABG, Magalhães-Padilha DM, Campelo CC, Figueiredo JR, van den Hurk R, Silva JRV. Effects of growth differentiation factor-9 and FSH on in vitro development, viability and mRNA expression in bovine preantral follicles. Reprod Fertil Dev 2013; 25:1194-203. [DOI: 10.1071/rd12173] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 11/16/2012] [Indexed: 12/12/2022] Open
Abstract
The present study investigated the role of growth differentiation factor (GDF)-9 and FSH, alone or in combination, on the growth, viability and mRNA expression of FSH receptor, proliferating cell nuclear antigen (PCNA) and proteoglycan-related factors (i.e. hyaluronan synthase (HAS) 1, HAS2, versican, perlecan) in bovine secondary follicles before and after in vitro culture. After 12 days culture, sequential FSH (100 ng mL–1 from Days 0 to 6 and 500 ng mL–1 from Days 7 to 12) increased follicular diameter and resulted in increased antrum formation (P < 0.05). Alone, 200 ng mL–1 GDF-9 significantly reduced HAS1 mRNA levels, but increased versican and perlecan mRNA levels in whole follicles, which included the oocyte, theca and granulosa cells. Together, FSH and GDF-9 increased HAS2 and versican (VCAN) mRNA levels, but decreased PCNA mRNA expression, compared with levels in follicles cultured in α-minimum essential medium supplemented with 3.0 mg mL–1 bovine serum albumin, 10 µg mL–1 insulin, 5.5 µg mL–1 transferrin, 5 ng mL–1 selenium, 2 mM glutamine, 2 mM hypoxanthine and 50 μg mL–1 ascorbic acid (α-MEM+). Comparisons of uncultured (0.2 mm) and α-MEM+ cultured follicles revealed that HAS1 mRNA expression was higher, whereas VCAN expression was lower, in cultured follicles (P < 0.05). Expression of HAS1, VCAN and perlecan (HSPG2) was higher in cultured than in vivo-grown (0.3 mm) follicles. In conclusion, FSH and/or GDF-9 promote follicular growth and antrum formation. Moreover, GDF-9 stimulates expression of versican and perlecan and interacts positively with FSH to increase HAS2 expression.
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Fabbri R, Pasquinelli G, Parazza I, Macciocca M, Magnani V, Battaglia C, Paradisi R, Venturoli S. Effects of Cyclic Increase in Gonadotropins on theIn VitroDevelopment of Primordial Follicles to Antral Stage. Ultrastruct Pathol 2012; 36:356-61. [DOI: 10.3109/01913123.2012.679353] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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How the concentration of insulin affects the development of preantral follicles in goats. Cell Tissue Res 2011; 346:451-6. [DOI: 10.1007/s00441-011-1264-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Accepted: 10/04/2011] [Indexed: 10/15/2022]
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Figueiredo JR, Rodrigues APR, Silva JRV, Santos RR. Cryopreservation and in vitro culture of caprine preantral follicles. Reprod Fertil Dev 2011; 23:40-7. [PMID: 21366979 DOI: 10.1071/rd10227] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Preantral follicles (PFs) form a far larger oocyte reservoir (~90% of the follicular population) than antral follicles. Several laboratories have focussed efforts on cryopreservation and in vitro culture (IVC) of PFs to obtain large numbers of fertilisable oocytes. This technology could be used to improve the reproductive potential of economically important animals, including goats, to preserve endangered species and breeds and improve fertility after chemotherapy in young women. Caprine PFs have been successfully cryopreserved using either vitrification or slow freezing. In addition, in vitro embryo production from oocytes enclosed in caprine PFs grown and matured in vitro was also achieved. The present paper selectively reviews the published studies on cryopreservation and IVC of caprine PFs to highlight advances, limitations and prospects.
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Expression of follicle-stimulating hormone receptor (FSHR) in goat ovarian follicles and the impact of sequential culture medium on in vitro development of caprine preantral follicles. ZYGOTE 2010; 19:205-14. [PMID: 21205389 DOI: 10.1017/s0967199410000511] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study evaluated the expression of FSH receptors (FSHR) in the different stages of goat follicle development and investigated whether the addition of increasing concentrations of FSH throughout the culture period influences the survival, growth and antral formation of in vitro-cultured caprine preantral follicles. The expression of FSHR was analysed before and after culturing follicles using real-time RT-PCR. For the culture, preantral follicles (≥150 μm) were isolated from ovarian fragments and cultured for 18 days in α-MEM+ alone or associated with recombinant FSH (rFSH: 100 or 1000 ng/ml), or in α-MEM+ supplemented with increasing concentrations of FSH throughout culture periods as follows: (a) sequential medium 1: FSH 100 ng/ml (from day 0 to 6), FSH 500 ng/ml (from day 6 to 12) and FSH 1000 ng/ml (from day 12 to 18); and (b) sequential medium 2: FSH 500 ng/ml (from day 0 to 9) and 1000 ng/ml (from day 9 to 18). Follicle development was evaluated on the basis of antral cavity formation, follicular and oocyte growth, and cumulus-oocyte complex health. The expression of FSHR in isolated caprine follicles increased from the preantral to antral phase. Regarding the culture, after 18 days, sequential medium 1 promoted follicular survival, antrum formation and a reduction in oocyte extrusion. Both sequential media promoted a higher rate of meiotic resumption compared with the other treatments. In conclusion, the addition of increased concentrations of FSH (sequential medium) has a significant impact on the in vitro development of caprine preantral follicles.
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