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Baruselli PS, de Abreu LÂ, Catussi BLC, Oliveira ACDS, Rebeis LM, Gricio EA, Albertini S, Sales JNS, Rodrigues CA. Use of new recombinant proteins for ovarian stimulation in ruminants. Anim Reprod 2023; 20:e20230092. [PMID: 37720727 PMCID: PMC10503889 DOI: 10.1590/1984-3143-ar2023-0092] [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: 06/06/2023] [Accepted: 07/21/2023] [Indexed: 09/19/2023] Open
Abstract
Currently, gonadotropin products (follicle stimulating hormone, FSH, and luteinizing hormone, LH) used in animal reproduction are produced by extraction and purification from abattoir-derived pituitary glands. This method, relying on animal-derived materials, carries the potential risk of hormone contamination and pathogen transmission. Additionally, chorionic gonadotropins are extracted from the blood of pregnant mares (equine chorionic gonadotropin; eCG) or the urine of pregnant women (human chorionic gonadotropin; hCG). However, recent advancements have introduced recombinant gonadotropins for assisted animal reproduction therapies. The traditional use of FSH for superovulation has limitations, including labor requirements and variability in superovulation response, affecting the success of in vivo (SOV) and in vitro (OPU/IVEP) embryo production. FSH treatment for superstimulation before OPU can promote the growth of a homogenous follicular population and the recovery of competent oocytes suitable for IVEP procedures. At present, a single injection of a preparation of long-acting bovine recombinant FSH (rFSH) produced similar superovulation responses resulting in the production of good-quality in vivo and in vitro embryos. Furthermore, the treatment with eCG at FTAI protocol has demonstrated its efficacy in promoting follicular growth, ovulation, and P/AI, mainly in heifers and anestrous cows. Currently, treatment with recombinant glycoproteins with eCG-like activity (r-eCG) have shown promising results in increasing follicular growth, ovulation, and P/AI in cows submitted to P4/E2 -based protocols. Bovine somatotropin (bST) is a naturally occurring hormone found in cows. Recombinant bovine somatotropin (rbST), produced through genetic engineering techniques, has shown potential in enhancing reproductive outcomes in ruminants. Treatment with rbST has been found to improve P/IA, increase donor embryo production, and enhance P/ET in recipients. The use of recombinant hormones allows to produce non-animal-derived products, offering several advantages in assisted reproductive technologies for ruminants. This advancement opens up new possibilities for improving reproductive efficiency and success rates in the field of animal reproduction.
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Affiliation(s)
- Pietro Sampaio Baruselli
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Laís Ângelo de Abreu
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Bruna Lima Chechin Catussi
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Ana Carolina dos Santos Oliveira
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Lígia Mattos Rebeis
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Emanuele Almeida Gricio
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Sofía Albertini
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil
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Kumar S, Chaves MS, da Silva AFB, Vale WG, Filho STR, Ferreira-Silva JC, Melo LM, de Figueiredo Freitas VJ. Factors affecting the in vitro embryo production in buffalo ( Bubalus bubalis): A review. VET MED-CZECH 2023; 68:45-56. [PMID: 38332761 PMCID: PMC10847820 DOI: 10.17221/48/2022-vetmed] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 12/15/2022] [Indexed: 02/10/2024] Open
Abstract
Under natural and well-managed conditions, the buffalo has good reproductive and productive indices. However, in vitro embryo production (IVEP) has been used commercially to maximise the number of elite animals. In this species, several factors (donor management, in vitro culture medium, semen, in vitro conditions, embryo transfer) still affect the IVEP results. In addition, the cost of this technique is very high for this purpose. Therefore, more studies, as well as adequate plans, are needed to achieve this objective efficiently. In this review, we discussed the current commercial status, influencing factors (in vivo and in vitro), and the progress and future challenges of IVEP in buffalo. A total of 81 references were used from 1979 to 2022. The relevant data or literature were searched using the following databases: Google, ResearchGate, Science Alert, Science Direct and PubMed, using the following keywords: buffalo oocytes/COCs, buffalo embryos, pregnancy and calving or live birth rate after embryo transfer. The best maturation, cleavage and blastocyst rates in the in vitro production of buffalo embryos were 95.8, 75.2 and 33.4%, respectively. The pregnancy and live birth rates ranged from 22.2% to 43.5% and from 15.3% to 36.5%, respectively, after the transfer of fresh embryos produced in vitro to the recipients. This review will help to contextualise IVEP in buffaloes, as well as create an adequate plan for implementing IVEP in buffaloes.
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Affiliation(s)
- Satish Kumar
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, Brazil
| | - Maiana Silva Chaves
- Laboratory of Physiology and Control of Reproduction, State University of Ceará, Fortaleza, Brazil
| | | | - William Gomes Vale
- Postgraduate Program in Veterinary Science, State University of Ceará, Fortaleza, Brazil
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Chang CW, Sung YW, Hsueh YW, Chen YY, Ho M, Hsu HC, Yang TC, Lin WC, Chang HM. Growth hormone in fertility and infertility: Mechanisms of action and clinical applications. Front Endocrinol (Lausanne) 2022; 13:1040503. [PMID: 36452322 PMCID: PMC9701841 DOI: 10.3389/fendo.2022.1040503] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/27/2022] [Indexed: 11/15/2022] Open
Abstract
Secreted by the anterior pituitary gland, growth hormone (GH) is a peptide that plays a critical role in regulating cell growth, development, and metabolism in multiple targeted tissues. Studies have shown that GH and its functional receptor are also expressed in the female reproductive system, including the ovaries and uterus. The experimental data suggest putative roles for GH and insulin-like growth factor 1 (IGF-1, induced by GH activity) signaling in the direct control of multiple reproductive functions, including activation of primordial follicles, folliculogenesis, ovarian steroidogenesis, oocyte maturation, and embryo implantation. In addition, GH enhances granulosa cell responsiveness to gonadotropin by upregulating the expression of gonadotropin receptors (follicle-stimulating hormone receptor and luteinizing hormone receptor), indicating crosstalk between this ovarian regulator and the endocrine signaling system. Notably, natural gene mutation of GH and the age-related decline in GH levels may have a detrimental effect on female reproductive function, leading to several reproductive pathologies, such as diminished ovarian reserve, poor ovarian response during assisted reproductive technology (ART), and implantation failure. Association studies using clinical samples showed that mature GH peptide is present in human follicular fluid, and the concentration of GH in this fluid is positively correlated with oocyte quality and the subsequent embryo morphology and cleavage rate. Furthermore, the results obtained from animal experiments and human samples indicate that supplementation with GH in the in vitro culture system increases steroid hormone production, prevents cell apoptosis, and enhances oocyte maturation and embryo quality. The uterine endometrium is another GH target site, as GH promotes endometrial receptivity and pregnancy by facilitating the implantation process, and the targeted depletion of GH receptors in mice results in fewer uterine implantation sites. Although still controversial, the administration of GH during ovarian stimulation alleviates age-related decreases in ART efficiency, including the number of oocytes retrieved, fertilization rate, embryo quality, implantation rate, pregnancy rate, and live birth rate, especially in patients with poor ovarian response and recurrent implantation failure.
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Saliba WP, Gimenes LU, Drumond RM, Bayão HXS, Di Palo R, Gasparrini B, Rubessa M, Baruselli PS, Sales JNS, Bastianetto E, Leite RC, Alvim MTT. "Which Factors Affect Pregnancy Until Calving and Pregnancy Loss in Buffalo Recipients of in vitro Produced Embryos?". Front Vet Sci 2020; 7:577775. [PMID: 33344525 PMCID: PMC7738327 DOI: 10.3389/fvets.2020.577775] [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: 06/29/2020] [Accepted: 10/10/2020] [Indexed: 11/13/2022] Open
Abstract
In vitro embryo production and embryo transfer (ET) in buffaloes has been developed for decades. However, most studies are focused on the donor or laboratory improvements, and there is a lack of reports regarding the recipients. Therefore, our aim was to investigate factors associated to pregnancy (P/ET), pregnancy loss (PL), and calving rates in buffalo recipients. The studied factors were season, recipient parity, the synchronization protocol, the CL diameter, asynchrony between the embryo and the recipient, the day of the recipient estrous cycle, the embryo (fresh vs. vitrified), the day of embryo development, and the embryo stage. These retrospective data, from a program of in vitro produced embryos, were analyzed by logistic regression, and the odds ratio was also estimated. Two factors were related to P/ET and the calving rate: (1) progesterone associated to estradiol plus eCG protocol for fixed time ET tended to affect positively P/ET on day 30 (41.9 vs. 36.1%, respectively; P = 0.07; AOR = 1.28) and P/ET on day 60 (37.8 vs. 36.1%, respectively; P = 0.09; AOR = 1.08) compared to the Ovsynch protocol; and (2) the CL diameter (≥14.5 mm) at transfer increased P/ET on day 30 (47.4 vs. 32.5%; P < 0.01; AOR = 1.87) and on day 60 (45.3 vs. 27.7%; P < 0.01; AOR = 2.16), and also the calving rate (37.9 vs. 21.7%; P < 0.01; AOR = 2.20). PL was greater when ET was done in the nonbreeding season compared to the breeding season (PL 30-60: 12.8 vs. 0.0%, P = 0.01; AOR > 999.99; PL 60-calving: 26.8 vs. 3.6%, P = 0.03; AOR = 9.90; and PL 30-calving: 36.2 vs. 3.6%, P = 0.01; AOR = 15.30). In conclusion, the data of our study indicated that the synchronization protocol, the CL diameter, and ET during the breeding season impacted the reproductive efficiency of buffalo recipients.
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Affiliation(s)
| | - Lindsay Unno Gimenes
- Departamento de Patologia, Reprodução e Saúde Única, Universidade Estadual Paulista, Jaboticabal, Brazil
| | | | | | - Rossella Di Palo
- Dipartimento di Medicina Veterinaria e Produzioni Animale, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Bianca Gasparrini
- Dipartimento di Medicina Veterinaria e Produzioni Animale, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Marcello Rubessa
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | | | - José Nélio Souza Sales
- Departamento de Medicina Veterinária, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Eduardo Bastianetto
- Departamento de Medicina Veterinária Preventiva, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rômulo Cerqueira Leite
- Departamento de Medicina Veterinária Preventiva, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Almeida J, Neves BP, Brito MF, Freitas RF, Lacerda LG, Grapiuna LS, Haddad JP, Auler PA, Henry M. Impact of in vitro fertilization by refrigerated versus frozen buffalo semen on developmental competence of buffalo embryos. Anim Reprod 2020; 17:e20200033. [PMID: 33936290 PMCID: PMC8081381 DOI: 10.1590/1984-3143-ar2020-0033] [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] [Indexed: 11/21/2022] Open
Abstract
The objective of this study was to evaluate the fertility of buffalo semen for in vitro embryo production (IVEP) by comparing the effectiveness of refrigerated versus frozen semen. Three OPU sessions were held at 30-day intervals. For oocyte fertilization three buffalo bulls were used, one per session. At each OPU-IVEP session, one ejaculate was collected and divided into two equal aliquots. Each aliquot was either refrigerated at 5ºC/24 hours or frozen. A TRIS extender containing 10% low density lipoproteins, 0.5% lecithin and 10 mM acetylcysteine was used adding 7% glycerol for freezing. Sperm motility/kinetic was evaluated by CASA and sperm membrane integrity by the hypoosmotic swelling test. The evaluations were performed at 0 h (post final dilution at 37ºC), at 4 and 24 hs post-incubation at 5ºC and post-thaw. At 24 hs incubation and immediately post thaw sperm cells were used for in vitro fertilization of buffalo oocytes equally distributed between both groups. Cleavage rates and embryo development were followed. The embryo/matured and embryo/cultured rates were 25.4 x 14.0% and 29.4 x 18.5% (P<0.05), for chilled and frozen semen, respectively. It is concluded that cooled semen can be used for in vitro embryo production in buffalo and that a better efficiency may be expected for cooled compared to frozen semen.
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Affiliation(s)
- Jaci Almeida
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Campus Pampulha, Belo Horizonte, MG, Brasil
| | - Beatriz Parzewski Neves
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Campus Pampulha, Belo Horizonte, MG, Brasil
| | - Mayara Ferreira Brito
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Campus Pampulha, Belo Horizonte, MG, Brasil
| | | | | | | | - João Paulo Haddad
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Campus Pampulha, Belo Horizonte, MG, Brasil
| | - Patrícia Alencar Auler
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Campus Pampulha, Belo Horizonte, MG, Brasil
| | - Marc Henry
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Campus Pampulha, Belo Horizonte, MG, Brasil
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Sagheer M, Ullah F, Arshad U, Saleem M, Nawaz M, Sarwar Z, Saad M, Riaz A, Naveed Ul Haque M, Basheer A, Ahmad N. Effect of photoperiodicity and methods of follicular wave emergence on follicle turn-over, recovery and quality of oocytes, and early in-vitro developmental competence of embryos using ovum pick-up in Nili-Ravi buffaloes: Preliminary evidence. Theriogenology 2020; 157:508-516. [PMID: 32916500 DOI: 10.1016/j.theriogenology.2020.07.021] [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: 03/02/2020] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 10/23/2022]
Abstract
The objectives of the present study were to evaluate the effects of photoperiodicity, gauge (G) of ovum pick-up (OPU) needle, and two methods of follicular wave emergence on follicular turn-over, oocyte recovery (OR), quality of the oocytes (OQ), and early in-vitro developmental competence of embryos in Nili-Ravi buffaloes (n = 20). In 1st experiment, buffaloes (n = 12; 4 buffaloes/season) were randomly assigned to optimize the OPU's (n) either with 17 G or 18 G needle in one of the following seasons: 1) peak breeding season (PBS; Sep-Nov; n = 31), 2) transition breeding season (TBS; Dec-Feb; n = 32), and 3) low breeding season (LBS; Apr-June; n = 32). During 2nd experiment, buffaloes (n = 8) were enrolled randomly in a 2 × 2 cross-over design to compare the two methods of wave emergence either using follicular ablation (FA; n = 4), or synchronization protocol (CIDR-EB; n = 4) during PBS. In FA method, the ovarian follicles were aspirated (week -1), and subsequently repeated OPU's (n = 55) were performed for 7 weeks. However, in CIDR-EB synchronized buffaloes, a progesterone device (CIDR) was inserted in the anterior vagina and a single dose of estradiol benzoate (2 mg) and prostaglandin (150 μg) were administered i.m. on d 1. The CIDR was removed on d 7 and repeated OPU's (n = 56) were performed. In both experiments, a 7-d resting period was provided between each OPU session. Data on the follicular turn-over, OR, OQ, and early stages of embryonic development were analyzed with mixed models using the PROC MIXED and GLIMMIX procedures of SAS. Results revealed that the number of medium sized follicles (LSM ± SEM) and rate of OR (%) were greater (P < 0.05) during PBS (2.76 ± 0.40; 61%) and TBS (1.73 ± 0.30; 54%) as compared to LBS (0.68 ± 0.30; 31%) in buffaloes, respectively. The OR rate was also greater (P < 0.05) using 17 G as opposed to 18 G needle (62% vs. 35%), however, there was no effect (P > 0.05) of season and G of needle on OQ in buffaloes. In experiment 2, the number of small (3.50 ± 0.63 vs.2.69 ± 0.60) sized follicles was higher (P < 0.05) in FA, whereas, medium (1.13 ± 0.45 vs. 1.59 ± 0.45) sized follicles were greater (P < 0.05) in CIDR-EB synchronized buffaloes. The OR rate (67% vs. 53%), and OQ (Grade I_+_II; 15% vs. 16% and Grade III_+_IV; 85% vs. 84%), remained similar (P > 0.05) in FA and CIDR-EB treated buffaloes, respectively. Similarly, rates of in-vitro maturation (66% vs. 59%), cleavage (42% vs. 53%), 4-cell (27% vs. 32%), 8-cell staged embryos (23% vs. 25%), and morula (13% vs. 8%) did not differ (P > 0.05) between FA and CIDR-EB methods of follicular wave emergence, respectively. Taken together, it is concluded that peak or transition breeding seasons are suitable to perform OPU using 17 G needle for maximum follicular turn-over, and OR in buffaloes. However, the two fundamental methods of synchronization of wave emergence resulted in similar efficiency for OPU derived in-vitro embryo production in Nili-Ravi buffaloes.
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Affiliation(s)
- Masroor Sagheer
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Farid Ullah
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Usman Arshad
- Department of Animal Sciences, University of Florida, Gainesville, 32611, USA
| | - Muhammad Saleem
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Mudassar Nawaz
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Zaeem Sarwar
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan; Department of Theriogenology, Faculty of Veterinary Science, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, 63100, Pakistan
| | - Muhammad Saad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan; Department of Theriogenology, Faculty of Veterinary Science, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, 63100, Pakistan
| | - Amjad Riaz
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Muhammad Naveed Ul Haque
- Department of Animal Nutrition, Faculty of Animal Production and Technology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Atia Basheer
- Department of Livestock Production, Faculty of Animal Production and Technology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Nasim Ahmad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
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Ferreira L, Wischral A, Bartolomeu C, Costa L, Soares A. Influência da somatotropina recombinante bovina no desenvolvimento folicular e na coleta de embriões em éguas. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-10604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO Dez éguas, sem raça definida, foram submetidas a avaliações ultrassonográficas durante o intervalo interovulatório, avaliando-se folículos ≥ 5mm. Cinco éguas foram tratadas com 500mg de r-bST no primeiro e no 14º dia pós-ovulação (grupo GT), e as demais com soro fisiológico (grupo GC). Quando o folículo dominante atingiu diâmetro ≥ 40mm, foram induzidas com hCG e inseminadas 24 horas após, sendo submetidas à coleta de embrião seis dias após a ovulação. Os dados foram agrupados de acordo com o diâmetro do folículo dominante nas fases de emergência, divergência, dominância, pré-ovulatória, indução, inseminação e ovulação. Todas as éguas foram usadas duas vezes, no mesmo grupo. O GT apresentou crescimento folicular precoce para as fases de emergência, divergência, dominância e pré-ovulatória, assim como para o seu maior folículo subordinado, que cresceu mais cedo. As taxas de recuperação foram de 90% (GC) e 70% (GT), em 16 estruturas coletadas, obtendo-se uma não fecundada e um blastocisto inicial para o grupo GC; os demais, no estágio de mórula, apresentaram comportamento semelhante entre os grupos. Conclui-se que a r-bST influencia a dinâmica folicular de éguas, levando a uma antecipação do desenvolvimento folicular, que pode ser utilizada para encurtar o ciclo estral.
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Affiliation(s)
- L.E.P.A. Ferreira
- Universidade Federal Rural de Pernambuco, Brazil; Instituto Federal de Educação ˗ Ciência e tecnologia de Pernambuco, Brazil
| | - A. Wischral
- Universidade Federal Rural de Pernambuco, Brazil; Universidade Federal Rural de Pernambuco, Brazil
| | - C.C. Bartolomeu
- Universidade Federal Rural de Pernambuco, Brazil; Universidade Federal Rural de Pernambuco, Brazil
| | | | - A.F. Soares
- Universidade Federal Rural de Pernambuco, Brazil; Universidade Federal Rural de Pernambuco, Brazil
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Is it possible to alter the embryo lipid accumulation with reduction of fetal bovine serum and use of l-carnitine for in vitro maturation of bubaline oocytes? ZYGOTE 2020. [DOI: 10.1017/s096719941900073x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryIn vitro embryo production (IVEP) is a procedure that can promote genetic improvement in a short time frame. However, the success rates obtained with this biotechnology in water buffaloes are still inconsistent, and can be associated with the high concentration of lipids in the cytoplasm of oocytes and embryos. The objective of this study was to evaluate the effects of reduced concentration of fetal bovine serum (FBS) and/or use of l-carnitine during in vitro maturation (IVM) on the preimplantation development and lipid accumulation in bubaline embryos. In a first experiment, the lowest concentration of FBS in the IVM medium (0%, 2.5%, 5% or 10%) was determined, and the lowest concentration that maintained good embryo development rates was 5%. In a second experiment, the addition of 5 mM of l-carnitine into the maturation medium was evaluated. The blastocysts produced were submitted to lipid evaluation involving staining followed by observation using optical (Oil Red O) and confocal (BODIPY 493/503) microscopy. No difference was observed between the 5% and 10% FBS groups, which were superior to the 0% and 2.5% groups. Furthermore, the performance of the groups treated with 5% and 10% FBS was better than the groups supplemented with l-carnitine. There was no difference regarding embryo lipid accumulation. The results indicated that it is possible to reduce the FBS concentration to 5% in in vitro maturation medium for production of bubaline embryos, and supplementation with 5 mM l-carnitine does not increase embryo production.
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Shahzad Q, Xu HY, Pu L, Waqas M, Wadood AA, Xie L, Lu KH, Liang X, Lu Y. Developmental potential of buffalo embryos cultured in serum free culture system. Theriogenology 2020; 149:38-45. [PMID: 32234649 DOI: 10.1016/j.theriogenology.2020.03.013] [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: 09/07/2019] [Revised: 02/29/2020] [Accepted: 03/08/2020] [Indexed: 11/28/2022]
Abstract
The presence of serum in embryo culture medium has been implicated for increased embryo's sensitivity to cryopreservation, compromised viability, abnormal embryo and fetal development. Hence, designing a serum free culture system is indispensable. The present study aims to compare the efficiency of the serum and granulosa cells monolayer free commercial culture system (SFCS) with the conventional serum supplemented co-culture system (SSCS) and optimized culture system (OCS). Generally, SFCS is designed explicitly for bovine oocyte maturation and embryo culture (SF-IVM and SF-IVC), and SSCS (based on M199, SS-IVM, and SS-IVC) is utilized for buffalo in vitro embryo production. However, OCS is a newly designed culture system in which oocyte maturation is performed in serum supplemented maturation medium, and the subsequent embryos are co-cultured with granulosa cells in serum free culture medium. To evaluate the effect of serum on buffalo embryo production, buffalo oocytes, and their subsequent embryos were cultured in SSCS, SFCS, and OCS, simultaneously. The percentage of cleaved embryos cultured in SSCS and OCS was approximately 4% higher as compared to SFCS. However, OCS significantly showed the maximum proportion of embryos that developed to the blastocyst stage (7d) and hatched (6d) as compared to the SFCS and SSCS. Additionally, OCS promoted the expression of developmentally important genes (BCL2-L1 and VEGF-A), cell number, and cryo-survival ability of blastocysts in comparison with SSCS. Taken together, OCS is more suitable for the oocyte maturation and culture of buffalo embryos. However, to design the serum free culture system, it is recommended to find suitable serum alternatives for in vitro oocyte maturation.
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Affiliation(s)
- Qaisar Shahzad
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Hui-Yan Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Liping Pu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Muhammad Waqas
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Armughan Ahmed Wadood
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Long Xie
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Ke-Huan Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Xianwei Liang
- Guangxi Key Laboratory of Buffalo Genetics and Breeding, Buffalo Research Institute, Chinese Academy of Agriculture Science, Nanning, China.
| | - Yangqing Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.
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Baruselli PS, Carvalho JGSD, Elliff FM, Silva JCBD, Chello D, Carvalho NATD. Embryo transfer in buffalo (Bubalus bubalis). Theriogenology 2020; 150:221-228. [PMID: 31996292 DOI: 10.1016/j.theriogenology.2020.01.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 01/18/2020] [Indexed: 02/06/2023]
Abstract
The use of assisted reproductive technologies, such as superovulation and in vivo embryo production and in vitro embryo production (IVEP), has increased rapidly in recent years and is now applied worldwide for genetic improvement in beef and dairy buffaloes. Although in vivo embryo production has been shown to be feasible in buffalo, low efficiency and limited commercial application has been documented. These results could be associated with low antral follicle populations, high levels of follicular atresia and/or failures of the oocyte to enter the oviduct after superovulation. Additionally, IVEP technology has been shown to be an important tool for multiplying genetic material from donors of superior merit, and promising results have been achieved with the use of ovum pick-up (OPU) along with IVEP in buffalo. However, several factors appear to be critical for successful OPU/IVEP, including circulating levels of anti-Müllerian hormone, antral follicle populations, sizes of the follicles available for the OPU, reproductive seasonality, semen (sire) used for IVEP, donor category and farm. Furthermore, technologies applied to control follicular wave emergence and ovulation at predetermined times, without the need for estrus detection in recipients, has facilitated management and improved the efficiency of embryo transfer programs in buffalo herds. Conclusively, with the considerable evidence of poor results with in vivo embryo production in buffaloes, the association of OPU with IVEP represents a new alternative for the exploitation of buffalo genetics.
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Affiliation(s)
| | - Júlia Gleyci Soares de Carvalho
- Universidade Federal de São Paulo, Escola Paulista de Medicina, Centro de Pesquisa em Urologia, São Paulo, São Paulo, Brazil
| | - Flávia Morag Elliff
- Departamento de Reprodução Animal, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | | | - Damiana Chello
- Departamento de Reprodução Animal, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Nelcio Antonio Tonizza de Carvalho
- Unidade de Pesquisa e Desenvolvimento de Registro/Centro de Pesquisa de Zootecnia Diversificada/Instituto de Zootecnia, Registro, São Paulo, Brazil
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11
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Xu YM, Hao GM, Gao BL. Application of Growth Hormone in in vitro Fertilization. Front Endocrinol (Lausanne) 2019; 10:502. [PMID: 31396161 PMCID: PMC6663998 DOI: 10.3389/fendo.2019.00502] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/10/2019] [Indexed: 11/13/2022] Open
Abstract
Growth hormone (GH) is a peptide hormone secreted mainly by the anterior part of the pituitary gland and plays a critical role in cell growth, development, and metabolism throughout the body. GH can not only directly influence human oocytes and cumulus cells but also indirectly improve oocyte quality through activating synthesis of insulin-like growth factor-I or promoting follicle-stimulating hormone-induced ovarian steroidogenesis. Since GH can regulate female and male infertility, it has been applied in the management of infertility for many years, especially in patients with poor ovarian response or poor prognosis. During ovarian stimulation, GH administration might improve the success rate of in vitro fertilization (IVF) probably through the beneficial effects of GH on oocyte quality as indicated by a higher number of mature oocytes and embryos arriving at the transfer stage and a higher fertility rate in GH-treated patients. However, there is still great controversy in the application of GH in IVF. While some researchers showed that pregnancy, implantation and live birth rates could be increased by ovarian pretreatment with GH, others did not support GH as an effective adjuvant for infertility treatment because the live birth rate was not increased. This study reviewed and summarized recent advancements and benefits in clinical application of GH, trying to reach a just unbiased conclusion regarding the effect of GH therapy in IVF.
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Affiliation(s)
- Yue-Ming Xu
- Department of Reproductive Medicine, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Gui-Min Hao
- Department of Reproductive Medicine, The Second Hospital, Hebei Medical University, Shijiazhuang, China
- *Correspondence: Gui-Min Hao
| | - Bu-Lang Gao
- Department of Medical Research, Shijiazhuang First Hospital, Hebei Medical University, Shijiazhuang, China
- Bu-Lang Gao
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12
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Konrad J, Clérico G, Garrido MJ, Taminelli G, Yuponi M, Yuponi R, Crudeli G, Sansinena M. Ovum pick-up interval in buffalo (Bubalus bubalis) managed under wetland conditions in Argentina: Effect on follicular population, oocyte recovery, and in vitro embryo development. Anim Reprod Sci 2017; 183:39-45. [PMID: 28662882 DOI: 10.1016/j.anireprosci.2017.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/07/2017] [Accepted: 06/19/2017] [Indexed: 10/19/2022]
Abstract
The excellent adaptation of water buffalo (Bubalis bubalis) to swampy environments means that animals are frequently managed in areas with restricted access for reproductive procedures. The objective of this study was to evaluate the effect of the ovum pick-up (OPU) interval on follicular population, oocyte recovery, oocyte quality and in vitro embryo production. Twelve Murrah buffaloes were subjected to two consecutive dominant follicle reductions, and randomly assigned to either 7-day (n=6) or 14-day (n=6) OPU interval groups. Although there was no significant difference in the average number of small (<3mm) and large (>8mm) diameter follicles available per OPU, a higher proportion of medium-sized follicles (3-8mm) were observed in the 14-day interval group (5.129 vs 3.267; p<0.05). The number of recovered oocytes per donor was also significantly higher (4.51 vs. 2.8; p<0.05) in the 14-day interval group, although this was attributed to an increase in the proportion of lower quality oocytes (grades III and IV). After in vitro fertilization, embryo developmental competence from grade I and II oocytes was superior to that from grade III and IV oocytes, irrespective of OPU interval group. There was no significant difference in the proportion of grade I and II oocytes cleaved after sperm co-incubation; however, there was a higher proportion of blastocysts produced in 14-day interval group (28 vs. 6%, p<0.05). No blastocysts were produced from grade III and IV oocytes. This study indicates it is possible to use a 14-day interval for oocyte collection in water buffalo; this approach could be considered as an alternative when access to animals is restricted.
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Affiliation(s)
- J Konrad
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, Corrientes, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - G Clérico
- Facultad de Ingeniería y Ciencias Agrarias, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - M J Garrido
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, Corrientes, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - G Taminelli
- Facultad de Ingeniería y Ciencias Agrarias, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina
| | - M Yuponi
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, Corrientes, Argentina
| | - R Yuponi
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, Corrientes, Argentina
| | - G Crudeli
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, Corrientes, Argentina
| | - M Sansinena
- Facultad de Ingeniería y Ciencias Agrarias, Pontificia Universidad Católica Argentina, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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13
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Ferraz ML, Sá Filho MF, Batista EOS, Watanabe YF, Watanabe MR, Dayan A, Joaquim DC, Accorsi MR, Gimenes LU, Vieira LM, Baruselli PS. Paradoxical effects of bovine somatotropin treatment on the ovarian follicular population and in vitro embryo production of lactating buffalo donors submitted to ovum pick-up. Anim Reprod Sci 2015; 154:1-7. [PMID: 25623138 DOI: 10.1016/j.anireprosci.2014.12.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 12/19/2014] [Accepted: 12/27/2014] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to evaluate the effect of bovine somatotropin (bST; 500mg) administration on lactating buffalo donors submitted to two different ovum pick-up (OPU) and in vitro embryo production schemes with a 7 or 14d intersession OPU interval. A total of 16 lactating buffalo cows were randomly assigned into one of four experimental groups according to the bST treatment (bST or No-bST) and the OPU intersession interval (7 or 14d) in a 2×2 factorial design (16 weeks of OPU sessions). The females submitted to OPU every 14d had a larger (P<0.001) number of ovarian follicles suitable for puncture (15.6±0.7 vs. 12.8±0.4) and an increased (P=0.004) number of cumulus-oocyte complexes (COCs) recovered (10.0±0.5 vs. 8.5±0.3) compared to the 7d interval group. However, a 7 or 14d interval between OPU sessions had no effect (P=0.34) on the number of blastocysts produced per OPU (1.0±0.1 vs. 1.3±0.2, respectively). In addition, bST treatment increased (P<0.001) the number of ovarian follicles suitable for puncture (15.3±0.5 vs. 12.1±0.4) but reduced the percentage (18.9% vs. 10.9%; P=0.009) and the number (1.4±0.2 vs. 0.8±0.1; P=0.003) of blastocysts produced per OPU session compared with the non-bST-treated buffaloes. In conclusion, the 14d interval between OPU sessions and bST treatment efficiently increased the number of ovarian follicles suitable for puncture. However, the OPU session interval had no effect on embryo production, and bST treatment reduced the in vitro blastocyst outcomes in lactating buffalo donors.
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Affiliation(s)
- M L Ferraz
- Vida Reprodutiva Consultoria S/S LTDA, Cravinhos, SP, Brazil; Department of Animal Reproduction, FMVZ-USP, São Paulo, SP, Brazil
| | - M F Sá Filho
- Department of Animal Reproduction, FMVZ-USP, São Paulo, SP, Brazil
| | - E O S Batista
- Department of Animal Reproduction, FMVZ-USP, São Paulo, SP, Brazil.
| | | | | | - A Dayan
- Vitrogen, Cravinhos, SP, Brazil
| | | | | | - L U Gimenes
- Department of Animal Reproduction, FCAV-UNESP, Jaboticabal, SP, Brazil
| | - L M Vieira
- Department of Animal Reproduction, FMVZ-USP, São Paulo, SP, Brazil
| | - P S Baruselli
- Department of Animal Reproduction, FMVZ-USP, São Paulo, SP, Brazil.
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14
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Hull KL, Harvey S. Growth hormone and reproduction: a review of endocrine and autocrine/paracrine interactions. Int J Endocrinol 2014; 2014:234014. [PMID: 25580121 PMCID: PMC4279787 DOI: 10.1155/2014/234014] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 11/26/2014] [Indexed: 01/01/2023] Open
Abstract
The somatotropic axis, consisting of growth hormone (GH), hepatic insulin-like growth factor I (IGF-I), and assorted releasing factors, regulates growth and body composition. Axiomatically, since optimal body composition enhances reproductive function, general somatic actions of GH modulate reproductive function. A growing body of evidence supports the hypothesis that GH also modulates reproduction directly, exerting both gonadotropin-dependent and gonadotropin-independent actions in both males and females. Moreover, recent studies indicate GH produced within reproductive tissues differs from pituitary GH in terms of secretion and action. Accordingly, GH is increasingly used as a fertility adjunct in males and females, both humans and nonhumans. This review reconsiders reproductive actions of GH in vertebrates in respect to these new conceptual developments.
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Affiliation(s)
- Kerry L Hull
- Department of Biology, Bishop's University, Sherbrooke, QC, Canada J1M 1Z7 ; Centre de Recherche Clinique Etienne-Le Bel, Université de Sherbrooke, Sherbrooke, QC, Canada J1H 5N4
| | - Steve Harvey
- Department of Physiology, University of Alberta, Edmonton, AB, Canada T6G 2R3
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15
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Gimenes LU, Ferraz ML, Fantinato-Neto P, Chiaratti MR, Mesquita LG, Sá Filho MF, Meirelles FV, Trinca LA, Rennó FP, Watanabe YF, Baruselli PS. The interval between the emergence of pharmacologically synchronized ovarian follicular waves and ovum pickup does not significantly affect in vitro embryo production in Bos indicus, Bos taurus, and Bubalus bubalis. Theriogenology 2014; 83:385-93. [PMID: 25447149 DOI: 10.1016/j.theriogenology.2014.09.030] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 09/27/2014] [Accepted: 09/29/2014] [Indexed: 10/24/2022]
Abstract
The aim of the present study was to determine the optimal phase of the follicular wave to perform ovum pickup (OPU) for in vitro embryo production (IVEP) in various genetic groups. For this purpose, 27 heifers-nine Bos taurus (Holstein), nine Bos indicus (Nelore), and nine Bubalus bubalis (Mediterranean)-were maintained under the same nutritional, management, and environmental conditions. Heifers within each genetic group were submitted to six consecutive OPU trials with 14-day intersession intervals, at three different phases of the pharmacologically synchronized follicular wave (Day 1, 3, or 5 after follicular wave emergence), in a 3 × 3 crossover design. When OPU was performed at different phases of the pharmacologically synchronized follicular wave (Day 1, 3, or 5), no differences were found in the percent of oocytes recovered (70.5 ± 3.1%, 75.0 ± 3.1%, 76.0 ± 3.2%, respectively; P = 0.41) or blastocyst production rates (19.4 ± 2.9%, 16.6 ± 2.9%, 15.9 ± 2.6%, respectively; P = 0.36). Comparing genetic groups, B indicus showed a higher blastocyst rate (28.3(a) ± 2.8%; P < 0.01) than B taurus and B bubalis (14.1(b) ± 2.9% and 10.2(b) ± 2.0%, respectively). However, only B indicus heifers showed a variation in the number of visualized follicles and the total and viable oocytes along consecutive OPU sessions. In conclusion, different phases of the pharmacologically synchronized ovarian follicular wave did not affect OPU-IVEP in B indicus, B taurus, and B bubalis heifers. Additionally, B indicus heifers showed greater OPU-IVEP efficiency than did the other genetic groups, under the same management conditions.
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Affiliation(s)
- Lindsay U Gimenes
- Department of Preventive Veterinary Medicine and Animal Reproduction, FCAV-UNESP, Jaboticabal, Brazil.
| | | | | | | | - Lígia G Mesquita
- Department of Animal Nutrition and Production, FMVZ-USP, Pirassununga, Brazil
| | | | | | | | - Francisco P Rennó
- Department of Animal Nutrition and Production, FMVZ-USP, Pirassununga, Brazil
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16
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Baldrighi JM, Sá Filho MF, Batista EOS, Lopes RNVR, Visintin JA, Baruselli PS, Assumpção MEOA. Anti-Mullerian Hormone Concentration and Antral Ovarian Follicle Population in Murrah Heifers Compared to Holstein and Gyr Kept Under the Same Management. Reprod Domest Anim 2014; 49:1015-20. [DOI: 10.1111/rda.12430] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 08/31/2014] [Indexed: 11/28/2022]
Affiliation(s)
- JM Baldrighi
- Department of Animal Reproduction; College of Animal Science and Veterinary Medicine; University of São Paulo; São Paulo SP Brazil
| | - MF Sá Filho
- Department of Animal Reproduction; College of Animal Science and Veterinary Medicine; University of São Paulo; São Paulo SP Brazil
| | - EOS Batista
- Department of Animal Reproduction; College of Animal Science and Veterinary Medicine; University of São Paulo; São Paulo SP Brazil
| | | | - JA Visintin
- Department of Animal Reproduction; College of Animal Science and Veterinary Medicine; University of São Paulo; São Paulo SP Brazil
| | - PS Baruselli
- Department of Animal Reproduction; College of Animal Science and Veterinary Medicine; University of São Paulo; São Paulo SP Brazil
| | - MEOA Assumpção
- Department of Animal Reproduction; College of Animal Science and Veterinary Medicine; University of São Paulo; São Paulo SP Brazil
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17
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Gasparrini B, Neglia G, Di Palo R, Vecchio D, Albero G, Esposito L, Campanile G, Zicarelli L. Influence of oocyte donor on in vitro embryo production in buffalo. Anim Reprod Sci 2013; 144:95-101. [PMID: 24374181 DOI: 10.1016/j.anireprosci.2013.11.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 11/14/2013] [Accepted: 11/22/2013] [Indexed: 11/19/2022]
Abstract
The aim of this research was to estimate the variability between buffalo as oocyte donors. In Experiment 1, reproductive variables were retrospectively analyzed in buffalo (n=40) that underwent repeated ovum pick up (OPU), over 16 puncture sessions (PS). The follicular recruitment among individuals and the relationship between follicular population and oocyte production were evaluated. In Experiment 2, eight buffalo underwent OPU for 28 PS and the oocytes were processed separately to correlate follicular and oocyte population at the first PS to blastocyst (BL) production. In Experiment 1, the average number of total follicles (TFL), small follicles (SFL), cumulus-oocyte complexes (COC) and Grade A+B COC recorded in each 4-PS period had great repeatability (r=0.52, 0.54, 0.60 and 0.57, respectively). The average number of Grade A+B COC recovered during the subsequent 15 PS was positively correlated with the first PS number of TFL (r=0.60; P<0.001), SFL (r=0.68; P<0.001), COC (r=0.48; P<0.01) and Grade A+B COC (r=0.40; P<0.05). In Experiment 2, a large variability among animals was observed in blastocyst yields. When animals were grouped according to the BL yield, the greatest BL yield group had a greater (P<0.05) number of TFL (8.3 ± 0.9 compared with 5.6 ± 0.7) and SFL (7.3 ± 0.3 compared with 3.8 ± 0.7) at the first PS than the lesser BL yield group. The average number of BL produced over the subsequent sessions was correlated with the number of TFL (r=0.80; P<0.05) and COC (r=0.76; P<0.05) observed at the first PS. These results demonstrated a donor influence on the oocyte and BL production, suggesting a preliminary screening to select the donors with greater potential.
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Affiliation(s)
- B Gasparrini
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
| | - G Neglia
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
| | - R Di Palo
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy.
| | - D Vecchio
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
| | - G Albero
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
| | - L Esposito
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
| | - G Campanile
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
| | - L Zicarelli
- Department of Veterinary Medicine and Animal Production, Federico II University, Via F. Delpino 1, 80137 Naples, Italy
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18
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Fátima LA, Evangelista MC, Silva RS, Cardoso APM, Baruselli PS, Papa PC. FSH up-regulates angiogenic factors in luteal cells of buffaloes. Domest Anim Endocrinol 2013; 45:224-37. [PMID: 24209507 DOI: 10.1016/j.domaniend.2013.09.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 02/05/2023]
Abstract
Follicle-stimulating hormone has been widely used to induce superovulation in buffaloes and cows and usually triggers functional and morphologic alterations in the corpus luteum (CL). Several studies have shown that FSH is involved in regulating vascular development and that adequate angiogenesis is essential for normal luteal development. Angiogenesis is regulated by many growth factors, of which vascular endothelial growth factor (VEGF) and fibroblast growth factor 2 (FGF2) have an established central role. Therefore, we have used a combination of in vitro and in vivo studies to assess the effects of FSH on the expression of VEGF and FGF2 and their receptors in buffalo luteal cells. The in vivo model consisted of 12 buffalo cows, divided into control (n = 6) and superovulated (n = 6) groups, and CL samples were collected on day 6 after ovulation. In this model, we analyzed the gene and protein expression of FGF2 and its receptors and the protein expression of VEGFA systems with the use of real-time PCR, Western blot analysis, and immunohistochemistry. In the in vitro model, granulosa cells were collected from small follicles (diameter, 4-6 mm) of buffaloes and cultured for 4 d in serum-free medium with or without FSH (10 ng/mL). To induce in vitro luteinization, LH (250 ng/mL) and fetal bovine serum (10%) were added to the medium, and granulosa cells were maintained in culture for 4 d more. The progesterone concentration in the medium was measured at days 4, 5, and 8 after the beginning of cell culture. Cells were collected at day 8 and subjected to real-time PCR, Western blot analysis, and immunofluorescence for assessment of the expression of FGF2, VEGF, and their receptors. To address the percentage of steroidogenic and growth factor-expressing cells in the culture, flow cytometry was performed. We observed that in superovulated buffalo CL, the FGF2 system mRNA expression was decreased even as protein expression was increased and that the VEGF protein was increased (P < 0.05). In vitro experiments with granulosa cells showed an increase in the mRNA expression of VEGF and FGF2 and its receptors 1 and 2 and protein expression of VEGF, kinase insert domain receptor, FGF receptor 2, and FGF receptor 3 in cells treated with FSH (P < 0.05), in contrast to the in vivo experiments. Moreover, the progesterone production by FSH-treated cells was elevated compared with untreated cells (P < 0.05). Our findings indicate that VEGF, FGF2, and their receptors were differentially regulated by FSH in vitro and in vivo in buffalo luteal cells, which points toward a role of CL environment in modulating cellular answers to gonadotropins.
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MESH Headings
- Angiogenic Proteins/analysis
- Angiogenic Proteins/genetics
- Animals
- Buffaloes/metabolism
- Cells, Cultured
- Female
- Fibroblast Growth Factor 2/analysis
- Fibroblast Growth Factor 2/genetics
- Fluorescent Antibody Technique
- Follicle Stimulating Hormone/pharmacology
- Granulosa Cells/chemistry
- Granulosa Cells/drug effects
- Granulosa Cells/metabolism
- Luteal Cells/chemistry
- Luteal Cells/metabolism
- Luteinizing Hormone/pharmacology
- Male
- Progesterone/biosynthesis
- RNA, Messenger/analysis
- Real-Time Polymerase Chain Reaction/veterinary
- Receptor, Fibroblast Growth Factor, Type 2/analysis
- Receptor, Fibroblast Growth Factor, Type 2/genetics
- Receptor, Fibroblast Growth Factor, Type 3/analysis
- Receptor, Fibroblast Growth Factor, Type 3/genetics
- Superovulation/physiology
- Up-Regulation
- Vascular Endothelial Growth Factor A/analysis
- Vascular Endothelial Growth Factor A/genetics
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Affiliation(s)
- L A Fátima
- Department of Surgery, Sector of Anatomy, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, Av. Prof. Dr Orlando Marques Paiva, 87, São Paulo, SP, 05508-270, Brazil.
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19
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Rocha do Nascimento I, Sousa Júnior A, Castelo Branco M, Carvalho Y, Mota L, Ferreira S, Souza I, Moraes Júnior F, Leal T, Souza J. Qualidade do corpo lúteo e do embrião de ovelhas Santa Inês superovuladas com FSH associado à rbST. ARQ BRAS MED VET ZOO 2013. [DOI: 10.1590/s0102-09352013000500015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Avaliou-se o efeito da somatotropina bovina recombinante (rbST) sobre a qualidade do corpo lúteo e do embrião e sobre a concentração de progesterona (P4), em ovelhas da raça Santa Inês doadoras de embriões. Foram utilizadas 13 doadoras, distribuídas aleatoriamente em dois grupos, G1 (n=7) e G2 (n=6). Em ambos os grupos, as doadoras foram sincronizadas com implante vaginal por 14 dias, receberam 100µg de PGF2α (Ciosin®) no sétimo dia e foram superovuladas, a partir do 12º dia, com 250UI de FSH (Folltopin-V®) em seis doses decrescentes. No dia da retirada do implante, as doadoras do G2 receberam 125mg de rbST (Boostin®) e foram cobertas por macho Santa Inês a cada 12 horas até o final do estro. No sexto dia após a primeira cobrição, foram avaliadas, por laparoscopia, a resposta superovulatória e a quantidade e a qualidade dos corpos lúteos. Após as avaliações, as colheitas embrionárias foram realizadas por laparotomia. A administração da rbST no protocolo de superovulação promoveu aumento significativo (P<0,05) no número de corpos lúteos do tipo I (9,00 x 5,28) e na qualidade embrionária (4,33 x 2,00).
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