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Rosa CO, Marinho LSR, da Rosa PRA, De Cesaro MP, Lunardelli PA, Silva-Santos KC, Basso AC, Bordignon V, Seneda MM. Molecular characteristics of granulosa and cumulus cells and oocyte competence in Nelore cows with low and high numbers of antral follicles. Reprod Domest Anim 2018; 53:921-929. [DOI: 10.1111/rda.13189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 03/06/2018] [Indexed: 12/20/2022]
Affiliation(s)
- CO Rosa
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| | - LSR Marinho
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| | - PRA da Rosa
- Department of Large Animal Clinics; Laboratory of Biotechnology and Animal Reproduction-BioRep; Federal University of Santa Maria; Santa Maria Brazil
| | - MP De Cesaro
- Department of Large Animal Clinics; Laboratory of Biotechnology and Animal Reproduction-BioRep; Federal University of Santa Maria; Santa Maria Brazil
| | | | - KC Silva-Santos
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| | - AC Basso
- In Vitro Brasil LTDA; Mogi Mirim Brazil
| | - V Bordignon
- Department of Animal Science; McGill University; Sainte Anne de Bellevue Canada
| | - MM Seneda
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
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Marinho LSR, Sanches BV, Rosa CO, Tannura JH, Rigo AG, Basso AC, Pontes JHF, Seneda MM. Pregnancy Rates to Fixed Embryo Transfer of Vitrified IVPBos indicus, Bos taurusorBos indicus × Bos taurusEmbryos. Reprod Domest Anim 2015; 50:807-11. [DOI: 10.1111/rda.12591] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 07/14/2015] [Indexed: 11/25/2022]
Affiliation(s)
- LSR Marinho
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
| | - BV Sanches
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - CO Rosa
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
| | - JH Tannura
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - AG Rigo
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - AC Basso
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - JHF Pontes
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - MM Seneda
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
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Gomes RG, Lisboa LA, Silva CB, Max MC, Marino PC, Oliveira RL, González SM, Barreiros TRR, Marinho LSR, Seneda MM. Improvement of development of equine preantral follicles after 6 days of in vitro culture with ascorbic acid supplementation. Theriogenology 2015; 84:750-5. [PMID: 26074067 DOI: 10.1016/j.theriogenology.2015.05.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 05/07/2015] [Accepted: 05/07/2015] [Indexed: 02/08/2023]
Abstract
The aim of this study was to evaluate the effects of different concentrations of ascorbic acid (25, 50, and 100 μg/mL) in supplemented minimum essential medium (MEM+) on the development of equine preantral follicles that were cultured in vitro for 2 or 6 days. The contralateral ovaries (n = 5) from five mares in seasonal anestrus were collected from a local abattoir. Nine ovarian tissue fragments of approximately 5 × 5 × 1 mm were obtained from each animal. One fragment was immediately fixed and subjected to histologic analysis (control group; Day 0), and the other eight were placed in PBS supplemented with penicillin (200 IU/mL) and streptomycin (200 mg/mL) at 4 °C for 1 hour (during transport to the laboratory). The fragments were cultured in situ for 2 days (D2) or 6 days (D6) in MEM+ or MEM+ plus ascorbic acid at three different concentrations, establishing the following nine groups: control; MEM+ (D2); MEM+ (D6); MEM+ 25 μg/mL of ascorbic acid (D2); MEM+ 25 μg/mL of ascorbic acid (D6); MEM+ 50 μg/mL of ascorbic acid (D2); MEM+ 50 μg/mL of ascorbic acid (D6); MEM+ 100 μg/mL of ascorbic acid (D2); and MEM+ 100 μg/mL of ascorbic acid (D6). The preantral follicles were classified according to their stage (primordial, primary, secondary, or antral) and their morphology (normal or abnormal). Slides (n = 951) including 4450 histologic sections were evaluated. Follicles were observed in only 4.85% (216 of 4450) of the histologic sections. Of the 407 follicles evaluated, 120 were in the primordial stage and 287 were in different developmental stages; additionally, 43.5% were morphologically normal. After 6 days of culture, the groups cultured with 50 and 100 μg/mL of ascorbic acid differed in terms of follicular development compared with the other groups. On the basis of occurrence of follicular development and the presence of viable follicles, it can be concluded that a positive effect of culture for 6 days in MEM+ supplemented with 50 and 100 μg/mL of ascorbic acid was observed on equine ovarian fragments.
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Affiliation(s)
- R G Gomes
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - L A Lisboa
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - C B Silva
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - M C Max
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - P C Marino
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - R L Oliveira
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - S M González
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - T R R Barreiros
- Laboratório de Biotecnologia da Reprodução Animal, DVPA, UENP, Bandeirantes, Parana, Brazil
| | - L S R Marinho
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil
| | - M M Seneda
- Laboratório de Reprodução Animal, DCV, CCA, UEL, Londrina, Parana, Brazil.
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Sanches BV, Marinho LSR, Filho BDO, Pontes JHF, Basso AC, Meirinhos MLG, Silva-Santos KC, Ferreira CR, Seneda MM. Cryosurvival and pregnancy rates after exposure of IVF-derived Bos indicus embryos to forskolin before vitrification. Theriogenology 2013; 80:372-7. [PMID: 23746692 DOI: 10.1016/j.theriogenology.2013.04.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 03/19/2013] [Accepted: 04/10/2013] [Indexed: 10/26/2022]
Abstract
In vitro-produced (IVP) bovine embryos are more sensitive to cryopreservation than their in vivo counterparts due to their higher lipid concentrations, whereas Bos indicus IVP embryos are even more sensitive than Bos taurus IVP embryos. To examine the effects of a lipolytic agent, before vitrification of Bos indicus IVP embryos, on embryo survival, viability, and pregnancy rates, two experiments were conducted. In experiment 1, Bos indicus (Nelore) embryos were produced from abattoir-derived ovaries and allocated into two groups. In the treatment group, 10 μM of forskolin was added to the in vitro culture medium on Day 5 and incubated for 48 hours. On Day 7 of culture, IVP-expanded blastocysts from both the control (n = 101) and treatment (n = 112) groups were vitrified with ethylene glycol and DMSO via the Cryotop procedure. Although there was no significant difference between the rates of blastocoel reexpansion and hatching of the embryos exposed to forskolin (87.5% and 70.5%, respectively) compared with the control embryos (79.2% and 63.3%, respectively), the numerically superior rates of the embryos exposed to forskolin led to another experiment. In experiment 2, blastocysts produced from the ovum pick up were exposed or not exposed to the lipolytic agent and vitrified as in experiment 1. Embryos treated with forskolin had higher pregnancy rates than the control group (48.8% vs. 18.5%). In view of these results, 1908 Bos indicus embryos were produced from ovum pick up, exposed to the lipolytic agent, and blastocysts were transferred to recipients, and the pregnancy rates of the embryos of various breeds were compared. The mean pregnancy rate obtained was 43.2%. All data were analyzed by chi-square or by binary logistic regression (P ≤ 0.05). In conclusion, treatment with forskolin before vitrification improved cryotolerance of Bos indicus IVP embryos, resulting in good post-transfer pregnancy rates.
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Affiliation(s)
- B V Sanches
- In Vitro Brasil Ltda, Mogi Mirim, São Paulo, SP, Brazil
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