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Bragança GM, Batista RITP, Souza-Fabjan JMG, Alfradique VAP, Arashiro EKN, Pinto PHN, Santos JDR, Camargo LSA, Menchaca A, da Fonseca JF, Brandão FZ. Exogenous progestogens differentially alter gene expression of immature cumulus-oocyte complexes in sheep. Domest Anim Endocrinol 2021; 74:106518. [PMID: 32711283 DOI: 10.1016/j.domaniend.2020.106518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 06/04/2020] [Accepted: 06/24/2020] [Indexed: 11/29/2022]
Abstract
This study evaluated the role of progesterone (P4) and medroxyprogesterone acetate (MAP) on the molecular status of immature cumulus-oocyte complexes (COCs) and the implications for oocyte quality in sheep. The number of viable COCs per ewe and the rate of COCs screened for developmental competence by brilliant cresyl blue positive (BCB+) were similar (P > 0.05), respectively, across treatments (P4: 7.7 ± 0.7 and 4.7 ± 1.2; MAP: 5.7 ± 1.0 and 3.5 ± 2.3; and control: 5.7 ± 1.1 and 3.6 ± 2.4). The COCs' gene expression was altered by exogenous progestogens compared with the control group: markers of steroidogenic pathway (FSH receptor [FSHr], LH receptor [LHr], and estradiol receptor α) and of quality (zygote arrest 1, growth differentiation factor 9, and B-cell lymphoma 2) were in abundance in P4 (P < 0.05). In addition, reelin protein (RELN) was downregulated, and Bcl-2 was upregulated in MAP (P < 0.05). In the P4 vs MAP comparison, FSHr, LHr, and RELN genes were upregulated (P < 0.05) in the P4 group. In conclusion, P4 and MAP promoted dissimilar effects on transcriptome profiling of immature BCB-selected COCs, possibly due to the differences in the chemical structure of progestogens and concentrations of serum P4. Exogenous P4 impacted positively on the profile of genes related to oocyte quality.
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Affiliation(s)
- G M Bragança
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil.
| | - R I T P Batista
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
| | - J M G Souza-Fabjan
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
| | - V A P Alfradique
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
| | - E K N Arashiro
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
| | - P H N Pinto
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
| | - J D R Santos
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
| | - L S A Camargo
- Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610, Juiz de Fora, Minas Gerais 36038-330, Brazil
| | - A Menchaca
- Fundacion IRAUy, Cno. Cruz del Sur 2250, Montevideo 12200, Uruguay
| | - J F da Fonseca
- Embrapa Caprinos e Ovinos, Estrada Sobral/Groaíras, km 04, CP 145, Sobral, Ceará 62010-970, Brazil
| | - F Z Brandão
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro 24320-340, Brazil
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Bragança GM, Souza-Fabjan JMG, Ribeiro LS, Brair VL, Côrtes LR, Souza CV, Batista RITP, Fonseca JF, Menchaca A, Brandão FZ. Exogenous progestogen does not affect first-wave follicle populations and oocyte quality during ovarian stimulation with FSH in sheep. Domest Anim Endocrinol 2020; 72:106369. [PMID: 31445776 DOI: 10.1016/j.domaniend.2019.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 05/19/2019] [Accepted: 06/04/2019] [Indexed: 11/20/2022]
Abstract
The effect of short-term administration of medroxyprogesterone acetate (MPA) or natural progesterone (P4) during ovarian stimulation with FSH on oocyte recovery was investigated in Santa Inês ewes. Ewes were treated with an intravaginal sponge containing MPA for 6 d; GnRH was applied 36 h after sponge removal and FSH was given in 3 injections (40, 24, and 16 mg, respectively) every 12 h after (D0, approximate ovulation time). At the first FSH dose, the ewes received either a new MPA sponge (n = 10) or a controlled device for internal release impregnated with P4 (n = 10) or did not receive any device (n = 10). Ovarian dynamics were assessed every 12 h by transrectal ultrasonography from D-3 to D2. Oocytes were recovered by laparoscopic ovum pick-up (LOPU) on D2 and graded by morphologic quality. The number of small, medium, and large follicles at D0 and D2 (ultrasound examinations), number of both follicles aspirated and oocytes recovered at LOPU, recovery rate, and oocyte grade did not differ (P > 0.05) among treatments. Thus, the short-term use of MPA or P4 during ovarian stimulation did not affect the first-wave follicle population or morphologic quality of oocytes. We would suggest that, in this protocol, the use of exogenous progestin is unnecessary.
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Affiliation(s)
- G M Bragança
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil.
| | - J M G Souza-Fabjan
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - L S Ribeiro
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - V L Brair
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - L R Côrtes
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - C V Souza
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - R I T P Batista
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
| | - J F Fonseca
- Embrapa Caprinos e Ovinos, Estrada Sobral/Groaíras, km 04, CP 145, Sobral, Ceará CEP 62010-970, Brazil
| | - A Menchaca
- Fundacion IRAUy, Cno. Cruz del Sur, 2250 CP, Montevideo 12200, Uruguay
| | - F Z Brandão
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil, 64, Niterói, Rio de Janeiro CEP 24320-340, Brazil
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Zi XD, Hu L, Lu JY, Liu S, Zheng YC. Comparison of the sequences and expression levels of genes related to follicular development and atresia between prolific and nonprolific goat breeds. Vet Med Sci 2019; 6:187-195. [PMID: 31782269 PMCID: PMC7196674 DOI: 10.1002/vms3.225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 10/01/2019] [Accepted: 11/03/2019] [Indexed: 12/17/2022] Open
Abstract
This study investigated the variations of the nucleotide sequences and ovarian expression levels of genes related to follicular development and atresia in prolific Jintang black goats and nonprolific Tibetan goats. Eight genes, FSHB, LHB, FSHR, LHCGR, ESR2, B4GANT2, BCL2 and BAX, were examined using reverse transcription‐polymerase chain reaction and quantitative real‐time PCR. The results showed that the nucleotide and deduced amino acid sequences of the LHB and BAX genes were not different, but there was one base change in the FSHR genes between the two breeds. There was one base change in the FSHB gene, which resulted in one amino acid substitution; there were nine base changes in the LHCGR gene, which resulted in five amino acid substitutions; and there were six base changes in the B4GANT2 gene, which resulted in four amino acid substitutions. The expression levels of the FSHR, LHCGR, ESR2, B4GANT2, BCL2 and BAX genes in the ovaries were not different between the two breeds. The plasma concentrations of FSH were not different, but the plasma concentrations of LH, P4 and E2 were lower in prolific Jintang black goats than in nonprolific Tibetan goats (P ˂ 0.05) at 40 hr after removal of the Controlled Internal Drug Release Devices. These results provide some foundations elucidating the endocrine and molecular mechanisms controlling ovulation rate in goats, but these need to be further verified.
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Affiliation(s)
- Xiang-Dong Zi
- Key-Laboratory for Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, China.,Key Laboratory of Conservation & Utilization of Qinghai-Tibetan Plateau Animal Genetic Resources of Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Liang Hu
- Key-Laboratory for Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, China
| | - Jian-Yuan Lu
- Key-Laboratory for Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, China
| | - Shuang Liu
- Key-Laboratory for Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, China
| | - Yu-Cai Zheng
- Key Laboratory of Conservation & Utilization of Qinghai-Tibetan Plateau Animal Genetic Resources of Ministry of Education, Southwest Minzu University, Chengdu, China
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Montes-Quiroz GL, Sánchez-Dávila F, Domínguez-Díaz D, Vázquez-Armijo JF, Grizelj J, Ledezma-Torres RA, Cervantes-Vega R, Arce-Vázquez N, Garza-Brenner E, Bernal-Barragán H. Influence of eCG and breed on the number of oocytes collected and the production of in vitro embryos of young goats during the reproductive season. Trop Anim Health Prod 2019; 51:2521-2527. [PMID: 31209690 DOI: 10.1007/s11250-019-01972-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/06/2019] [Indexed: 11/25/2022]
Abstract
The objective of this study was to determine the effect of breed and equine chorionic gonadotropin (eCG) on ovarian response and in vitro embryo production from young goats. Thirty-one (12 Alpine, 10 Nubian, and 9 Saanen) were randomly assigned into three treatments of eCG (T1, 0 IU; T2, 500 IU; and T3, 1000 IU). Alpine goats showed the highest amount and largest size of follicles (P = 0.003). The effect of eCG dose 24 h post application was significant (P < 0.05), and was superior in goats undergoing T2. The aspiration rate of cumulus-oocyte complexes (COC) was 34% (P > 0.05), except for percentage of denuded oocytes, which obtained the highest number (P = 0.003) in the Saanen goats. The same difference was found (P = 0.02) in oocytes grade III in T2 and T3, with 42.5 and 37.9% respectively. In vitro embryo production was 80.0% of IVF/cleavage in the Alpine goats (P = 0.003). Embryo production was the greatest for T2 (69.2%; P = 0.004). T3 goats had higher percentage of morula stage (66.6%; P = 0.030). It is concluded that the application of eCG has a significant effect on the ovarian status, and quality and quantity of embryos with a differential response depending on the breed.
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Affiliation(s)
- Gabriela Lisset Montes-Quiroz
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico
| | - Fernando Sánchez-Dávila
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico. .,Facultad de Agronomía, Unidad Académica Marín, Laboratorio de Reproducción Animal, Universidad Autónoma de Nuevo León, 66700, Marín, N.L., Mexico.
| | - David Domínguez-Díaz
- Unión Ganadera Regional de Nuevo León, Centro de Biotecnología Reproductiva, General Bravo, N.L., Mexico
| | - José Fernanco Vázquez-Armijo
- Centro Universitario UAEM Temascaltepec, Universidad Autónoma del Estado de México, 51300, Temascaltepec, Mexico
| | - Juraj Grizelj
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Rogelio A Ledezma-Torres
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico
| | - Rubén Cervantes-Vega
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico
| | - Nestor Arce-Vázquez
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico
| | - Estela Garza-Brenner
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico
| | - Hugo Bernal-Barragán
- Posgrado Conjunto Facultad de Agronomía-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, 66050, General Escobedo, N.L., Mexico
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