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Glanzner WG, Rissi VB, Bordignon V. Somatic Cell Nuclear Transfer in Pigs. Methods Mol Biol 2023; 2647:197-210. [PMID: 37041336 DOI: 10.1007/978-1-0716-3064-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Somatic cell nuclear transfer (SCNT) has been successfully applied to clone animals of several species. Pigs are one of the main livestock species for food production and are also important for biomedical research due to their physiopathological similarities with humans. In the past 20 years, clones of several swine breeds have been produced for a variety of purposes, including biomedical and agricultural applications. In this chapter, we describe a protocol to produce cloned pigs by SCNT.
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Affiliation(s)
- Werner G Glanzner
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - Vitor B Rissi
- Faculty of Veterinary Medicine, Federal University of Santa Catarina, UFSC, Curitibanos, SC, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC, Canada.
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2
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Gutierrez K, Glanzner WG, de Macedo MP, Rissi VB, Dicks N, Bohrer RC, Baldassarre H, Agellon LB, Bordignon V. Cell Cycle Stage and DNA Repair Pathway Influence CRISPR/Cas9 Gene Editing Efficiency in Porcine Embryos. Life (Basel) 2022; 12:life12020171. [PMID: 35207459 PMCID: PMC8876063 DOI: 10.3390/life12020171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 11/21/2022] Open
Abstract
CRISPR/Cas9 technology is a powerful tool used for genome manipulation in different cell types and species. However, as with all new technologies, it still requires improvements. Different factors can affect CRISPR/Cas efficiency in zygotes, which influence the total cost and complexity for creating large-animal models for research. This study evaluated the importance of zygote cell cycle stage between early-injection (within 6 h post activation/fertilization) versus late-injection (14–16 h post activation/fertilization) when the CRISPR/Cas9 components were injected and the inhibition of the homologous recombination (HR) pathway of DNA repair on gene editing, embryo survival and development on embryos produced by fertilization, sperm injection, somatic cell nuclear transfer, and parthenogenetic activation technologies. Injections at the late cell cycle stage decreased embryo survival (measured as the proportion of unlysed embryos) and blastocyst formation (68.2%; 19.3%) compared to early-stage injection (86.3%; 28.8%). However, gene editing was higher in blastocysts from late-(73.8%) vs. early-(63.8%) injected zygotes. Inhibition of the HR repair pathway increased gene editing efficiency by 15.6% in blastocysts from early-injected zygotes without compromising embryo development. Our finding shows that injection at the early cell cycle stage along with HR inhibition improves both zygote viability and gene editing rate in pig blastocysts.
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Affiliation(s)
- Karina Gutierrez
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
| | - Werner G. Glanzner
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
| | - Mariana P. de Macedo
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
| | - Vitor B. Rissi
- Department of Agriculture, Biodiversity and Forests, Federal University of Santa Catarina, Curitibanos 89520-000, Brazil;
| | - Naomi Dicks
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
| | - Rodrigo C. Bohrer
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
| | - Hernan Baldassarre
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
| | - Luis B. Agellon
- School of Human Nutrition, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
- Correspondence: (L.B.A.); (V.B.)
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; (K.G.); (W.G.G.); (M.P.d.M.); (N.D.); (R.C.B.); (H.B.)
- Correspondence: (L.B.A.); (V.B.)
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Ferst JG, Glanzner WG, Gutierrez K, de Macedo MP, Ferreira R, Gasperin BG, Duggavathi R, Gonçalves PB, Bordignon V. Supplementation of oleic acid, stearic acid, palmitic acid and β-hydroxybutyrate increase H3K9me3 in endometrial epithelial cells of cattle cultured in vitro. Anim Reprod Sci 2021; 233:106851. [PMID: 34560342 DOI: 10.1016/j.anireprosci.2021.106851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/21/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 11/16/2022]
Abstract
There is growing evidence that greater than homeostatic blood concentrations of nonesterified fatty acids (NEFAs) and β-hydroxybutyrate (BHBA) have negative consequences on dairy cow's fertility, but effects on cell homeostasis in the reproductive system is not completely understood. In this study, lipids accumulation, reactive oxygen species (ROS) concentrations, abundance of gene transcripts, and immunofluorescence signal of H3K4me3 and H3K9me3 were evaluated in endometrial epithelial cells of cattle cultured with NEFAs (Oleic (OA), Stearic (SA) and Palmitic (PA) acids), BHBA, NEFAs + BHBA or each of the three NEFAs alone. The cellular lipids were in greater concentrations as a result of NEFAs + BHBA, NEFAs, SA or OA supplementation, but not by BHBA or PA. The ROS concentrations were greater when there were treatments with NEFAs + BHBA, NEFAs or BHBA. The relative mRNA abundance for genes involved in the regulation of apoptosis (XIAP), glucose transport (GLUT3), and DNA methylation (DNMT1) were greater when there were NEFAs + BHBA, but not NEFAs, BHBA, OA, SA or PA treatments. The immunofluorescence signal for H3K9me3 was greater when there were NEFAs + BHBA, NEFAs or PA, but not by BHBA, OA or SA treatments. These findings indicate that NEFAs and BHBA have an additive effect on endometrial cells of cattle by altering epigenetic markers and the expression of genes controlling important cellular pathways. Furthermore, there was cellular lipid accumulation and increased H3K9me3 in cultured bovine endometrial cells that was mainly induced by OA and PA treatments, respectively.
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Affiliation(s)
- Juliana G Ferst
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil; Department of Animal Science, McGill University, Saint-Anne-de-Bellevue, QC, Canada.
| | - Werner G Glanzner
- Department of Animal Science, McGill University, Saint-Anne-de-Bellevue, QC, Canada.
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Saint-Anne-de-Bellevue, QC, Canada.
| | - Mariana P de Macedo
- Department of Animal Science, McGill University, Saint-Anne-de-Bellevue, QC, Canada.
| | - Rogério Ferreira
- Department of Animal Production, Santa Catarina State University, Lages, SC, Brazil.
| | - Bernardo G Gasperin
- Department of Animal Pathology, Federal University of Pelotas, Capão do Leão, RS, Brazil.
| | - Raj Duggavathi
- Department of Animal Science, McGill University, Saint-Anne-de-Bellevue, QC, Canada.
| | - Paulo Bayard Gonçalves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil; Molecular and Integrative Physiology of Reproduction Laboratory, MINT, Federal University of Pampa, Uruguaiana, RS, Brazil.
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Saint-Anne-de-Bellevue, QC, Canada.
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Dicks N, Gutierrez K, Currin L, de Macedo MP, Glanzner WG, Mondadori RG, Michalak M, Agellon LB, Bordignon V. Tauroursodeoxycholic acid/TGR5 signaling promotes survival and early development of glucose-stressed porcine embryos†. Biol Reprod 2021; 105:76-86. [PMID: 33889948 PMCID: PMC8256098 DOI: 10.1093/biolre/ioab072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/24/2021] [Accepted: 04/12/2021] [Indexed: 01/21/2023] Open
Abstract
Conditions of impaired energy and nutrient homeostasis, such as diabetes and obesity, are associated with infertility. Hyperglycemia increases endoplasmic reticulum stress as well as oxidative stress and reduces embryo development and quality. Oxidative stress also causes deoxyribonucleic acid damage, which impairs embryo quality and development. The natural bile acid tauroursodeoxycholic acid reduces endoplasmic reticulum stress and rescues developmentally incompetent late-cleaving embryos, as well as embryos subjected to nuclear stress, suggesting the endoplasmic reticulum stress response, or unfolded protein response, and the genome damage response are linked. Tauroursodeoxycholic acid acts via the Takeda-G-protein-receptor-5 to alleviate nuclear stress in embryos. To evaluate the role of tauroursodeoxycholic acid/Takeda-G-protein-receptor-5 signaling in embryo unfolded protein response, we used a model of glucose-induced endoplasmic reticulum stress. Embryo development was impaired by direct injection of tauroursodeoxycholic acid into parthenogenetically activated oocytes, whereas it was improved when tauroursodeoxycholic acid was added to the culture medium. Attenuation of the Takeda-G-protein-receptor-5 precluded the positive effect of tauroursodeoxycholic acid supplementation on development of parthenogenetically activated and fertilized embryos cultured under standard conditions and parthenogenetically activated embryos cultured with excess glucose. Moreover, attenuation of tauroursodeoxycholic acid/Takeda-G-protein-receptor-5 signaling induced endoplasmic reticulum stress, oxidative stress and cell survival genes, but decreased expression of pluripotency genes in parthenogenetically activated embryos cultured under excess glucose conditions. These data suggest that Takeda-G-protein-receptor-5 signaling pathways link the unfolded protein response and genome damage response. Furthermore, this study identifies Takeda-G-protein-receptor-5 signaling as a potential target for mitigating fertility issues caused by nutrient excess-associated blastomere stress and embryo death.
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Affiliation(s)
- Naomi Dicks
- Department of Animal Science, McGill University, Quebec, Canada
| | | | - Luke Currin
- Department of Animal Science, McGill University, Quebec, Canada
| | | | | | - Rafael G Mondadori
- Department of Animal Science, McGill University, Quebec, Canada
- ReproPel, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Marek Michalak
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Luis B Agellon
- School of Human Nutrition, McGill University, Quebec, Canada
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Bridi A, Bertolin K, Rissi VB, Mujica LKS, Glanzner WG, de Macedo MP, Comim FV, Gonçalves PBD, Antoniazzi AQ. Parthenogenetic bovine embryos secrete type I interferon capable of stimulating ISG15 in luteal cell culture. Anim Reprod 2018; 15:1268-1277. [PMID: 34221141 PMCID: PMC8203113 DOI: 10.21451/1984-3143-ar2018-0095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Interferon tau (IFNT) is the pregnancy recognition signal in ruminants and is secreted by
trophoblast cells. Paracrine action in the endometrium is well established by inhibiting
luteolytic pulses of prostaglandin F2 alpha. Recently, endocrine action was documented
in the corpus luteum, blood cell and liver. It was hypothesized that conditioned medium (CM)
obtained from days 7, 9 and 12 parthenogenetic embryos alters luteal cell gene expression.
The aim was to establish a bovine mixed luteal cell culture to evaluate cellular response associated
to interferon stimulated genes, steroidogenesis and apoptosis. Conditioned medium was
obtained from Days 7, 9 and 12 parthenogenetic (PA) embryos culture. Moreover, antiviral
assay was performed on CM from Days 7, 9 and 12 to verify Type I interferon activity. Luteal cell
culture was validated by steroidogenic and apoptotic genes (CYP11A1
, HSD3B1, BAX, BCL2, AKT and
XIAP mRNA expression), and concentration of progesterone as endpoint. Luteal
cell culture was treated with interferon alpha (IFNA) and CM from parthenogenetic embryos.
Antiviral assay revealed Type I interferon activity on CM from embryos increasing on Days
9 and 12. ISG15 mRNA was greater in the mixed luteal cells culture treated
with 1, 10 and 100ng/ml of interferon alpha (IFNA) and also on Days 7, 9 and 12 CM treatments.
Concentration of progesterone was not altered in luteal cell culture regardless of treatments.
Steroidogenic and apoptotic genes were similar among groups in luteal cell culture treated
with different doses of IFNA or CM from PA embryos. In conclusion, parthenogenetic embryo-derived
CM has antiviral activity, luteal cell culture respond to Type I interferon by expressing
IGS15. These data indicate this model can be used for IFNT endocrine signaling studies.
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Affiliation(s)
- Alessandra Bridi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Kalyne Bertolin
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Vitor B Rissi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Lady K S Mujica
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Werner G Glanzner
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Mariana P de Macedo
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Fabio V Comim
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Paulo B D Gonçalves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Alfredo Q Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
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Michalovic L, Currin L, Gutierrez K, Bellefleur A, Glanzner WG, Schuermann Y, Macedo MP, Bohrer RC, Dicks N, Lopez R, Taibi M, Madogwe E, St‐Yves A, Mondadori RG, Gourdon J, Vigneault C, Baldassarre H, Bordignon V. Granulosa cells of prepubertal cattle respond to gonadotropin signaling and upregulate genes that promote follicular growth and prevent cell apoptosis. Mol Reprod Dev 2018; 85:909-920. [DOI: 10.1002/mrd.23066] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 10/05/2018] [Indexed: 01/20/2023]
Affiliation(s)
- Laura Michalovic
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Luke Currin
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Karina Gutierrez
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | | | - Werner G. Glanzner
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Yasmin Schuermann
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Mariana P. Macedo
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Rodrigo C. Bohrer
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Naomi Dicks
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Rosalba Lopez
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Milena Taibi
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Ejimedo Madogwe
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Audrey St‐Yves
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Rafael G. Mondadori
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Jim Gourdon
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
- Comparative Medicine and Animal Resources Centre, McGill UniversityMontreal Quebec Canada
| | | | - Hernan Baldassarre
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
| | - Vilceu Bordignon
- Department of Animal ScienceMcGill UniversitySainte‐Anne‐de‐Bellevue Quebec Canada
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de Macedo MP, Glanzner WG, Rissi VB, Gutierrez K, Currin L, Baldassarre H, Bordignon V. A fast and reliable protocol for activation of porcine oocytes. Theriogenology 2018; 123:22-29. [PMID: 30273737 DOI: 10.1016/j.theriogenology.2018.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 06/19/2018] [Revised: 08/10/2018] [Accepted: 09/23/2018] [Indexed: 12/29/2022]
Abstract
Oocyte activation is physiologically triggered by the sperm during fertilization, however, production of porcine embryos by somatic cell nuclear transfer (SCNT), intracytoplasmic sperm injection (ICSI) or parthenogenetic activation (PA) requires artificial oocyte activation. Although effective protocols for artificial oocyte activation have been developed, current protocols require long exposures to non-specific inhibitors, which do not mimic the physiological process and may have detrimental consequences for embryo development. This study attempted to mimic the physiological activation events induced by fertilization, through the manipulation of Ca2+ and Zn2+ levels, and protein kinase C (PKC) as well as cyclin dependent kinase 1 (CDK1) activities, with the aim of developing an improved protocol for activation of porcine oocytes. In the first experiment, matured oocytes were exposed to ionomycin (Ion) for 5 min, and then treated with a specific CDK1 inhibitor (RO-3306) and/or PKC activator (OAG) for different time intervals. The highest rate of pronuclear (PN) formation (58.8%) was obtained when oocytes were treated with PKCa + CDK1i for 4 h. Second, PN formation and embryo development were evaluated in oocytes exposed for different times to a Zn2+ chelator (TPEN) following Ion treatment. This revealed that 15 min was the minimal exposure time to TPEN required to maximise oocyte activation and embryo development. Next, we observed that treatment with PKCa + CDK1i for 4 h after TPEN for 15 min decreased embryo development compared to TPEN alone. Lastly, we compared the efficiency of the Ion (5 min) plus TPEN (15 min) protocol (IT-20) with a control protocol used in our laboratory (CT-245) for production of PA, SCNT and ICSI embryos. In PA embryos, IT-20 resulted in higher cleavage (72% vs 49.2%) and blastocyst from cleaved embryos (65.5% vs 46.2%) compared to CT-245. In ICSI embryos, higher PN rates were obtained with the IT-20 protocol compared with CT-245 and the non-activated (N-A) group. Moreover, the two protocols were equally efficient for activation of SCNT embryos. Based on these findings, we propose that IT-20 is a fast and effective protocol for activation of porcine oocytes.
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Affiliation(s)
- Mariana P de Macedo
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Werner G Glanzner
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Vitor B Rissi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Luke Currin
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Hernan Baldassarre
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada.
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Baldassarre H, Currin L, Michalovic L, Bellefleur AM, Gutierrez K, Mondadori RG, Glanzner WG, Schuermann Y, Bohrer RC, Dicks N, Lopez R, Grand FX, Vigneault C, Blondin P, Gourdon J, Bordignon V. Interval of gonadotropin administration for in vitro embryo production from oocytes collected from Holstein calves between 2 and 6 months of age by repeated laparoscopy. Theriogenology 2018; 116:64-70. [DOI: 10.1016/j.theriogenology.2018.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/27/2018] [Accepted: 05/06/2018] [Indexed: 11/16/2022]
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Dornelles EB, Goncalves BD, Schott KL, Barbisan F, Unfer TC, Glanzner WG, Machado AK, Cadona FC, Azzolin VF, Montano MAE, Griner J, da Cruz IBM. Cytotoxic effects of moderate static magnetic field exposure on human periphery blood mononuclear cells are influenced by Val16Ala-MnSOD gene polymorphism. Environ Sci Pollut Res Int 2017; 24:5078-5088. [PMID: 28004364 DOI: 10.1007/s11356-016-8176-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/28/2016] [Indexed: 06/06/2023]
Abstract
Technological advancement has increasingly exposed humans to magnetic fields (MFs). However, more insights are necessary into the potential toxicity of MF exposure as a result of genetic variations related to oxidative metabolism. Therefore, the following study has assessed an in vitro cytotoxic effect of static magnetic field (SMF) (5 mT) on cells with Val16Ala polymorphism (AA, VA, and VV) in the manganese superoxide dismutase gene. Homozygous Val16Ala-superoxide dismutase 2 (SOD2) genotypes present oxidative imbalance that is associated with risk to several chronic degenerative diseases (VV produces less efficient and AA more efficient SOD2 enzyme). Blood samples from healthy adult subject carriers with different Val16Ala-SOD2 genotypes were obtained and exposed to MF at different times (0, 1, 3, 6 h). The cytotoxic effect as well as oxidative stress was evaluated after incubation of 24 h at 37 °C. In addition, apoptosis induction has been analyzed by flow cytometry as well as Bcl-2-associated X protein (BAX), B-cell lymphoma 2 (BCL-2), and caspases 8 and 3 gene expression. SMF cytotoxic effect has been observed in AA cells at all times of exposure, whereas AV cells presented higher mortality only after 6 h of exposure at SMF. Higher apoptosis induction has been observed in AA cells when compared to VV and AV cells. These results suggest a toxicogenetic SMF effect related to an imbalance in SOD2 activity.
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Affiliation(s)
- Eduardo B Dornelles
- Biological Science Graduate Program: Toxicological Biochemistry, Universidade Federal de Santa Maria, Av Roraima 1000, Prédio 19, Santa Maria, RS, 97105900, Brazil.
| | - Bayard D Goncalves
- Veterinary Medicine Graduate Program, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Karen Lilian Schott
- Biological Science Graduate Program: Toxicological Biochemistry, Universidade Federal de Santa Maria, Av Roraima 1000, Prédio 19, Santa Maria, RS, 97105900, Brazil
| | - Fernanda Barbisan
- Pharmacology Graduate Program, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Tais C Unfer
- Pharmacology Graduate Program, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Werner G Glanzner
- Veterinary Medicine Graduate Program, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Alencar K Machado
- Pharmacology Graduate Program, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Francine C Cadona
- Biological Science Graduate Program: Toxicological Biochemistry, Universidade Federal de Santa Maria, Av Roraima 1000, Prédio 19, Santa Maria, RS, 97105900, Brazil
| | | | - Marco Aurélio Echart Montano
- Health and Biosciences Post-Graduate Program, Universidade do Oeste de Santa Catarina, Rua Dirceu Giordani, 696, Xanxerê, 89820-000, SC, Brazil
| | - John Griner
- Biological Science Graduate Program: Toxicological Biochemistry, Universidade Federal de Santa Maria, Av Roraima 1000, Prédio 19, Santa Maria, RS, 97105900, Brazil
| | - Ivana B M da Cruz
- Biological Science Graduate Program: Toxicological Biochemistry, Universidade Federal de Santa Maria, Av Roraima 1000, Prédio 19, Santa Maria, RS, 97105900, Brazil
- Pharmacology Graduate Program, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Glanzner WG, Wachter A, Coutinho ARS, Albornoz MS, Duggavathi R, GonÇAlves PBD, Bordignon V. Altered expression of BRG1 and histone demethylases, and aberrant H3K4 methylation in less developmentally competent embryos at the time of embryonic genome activation. Mol Reprod Dev 2016; 84:19-29. [PMID: 27879032 DOI: 10.1002/mrd.22762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 11/18/2016] [Indexed: 12/16/2022]
Abstract
Epigenetics is a fundamental regulator underlying many biological functions, such as development and cell differentiation. Epigenetic modifications affect key chromatin regulation, including transcription and DNA repair, which are critical for normal embryo development. In this study, we profiled the expression of epigenetic modifiers and patterns of epigenetic changes in porcine embryos around the period of embryonic genome activation (EGA). We observed that Brahma-related gene 1 (BRG1) and Lysine demethylase 1A (KDM1A), which can alter the methylation status of lysine 4 in histone 3 (H3K4), localize to the nucleus at Day 3-4 of development. We then compared the abundance of epigenetic modifiers between early- and late-cleaving embryos, which were classified based on the time to the first cell cleavage, to investigate if their nuclear localization contributes to developmental competence. The mRNA abundance of BRG1, KDM1A, as well as other lysine demethylases (KDM1B, KDM5A, KDM5B, and KDM5C), were significantly higher in late- compared to early-cleaving embryos near the EGA period, although these difference disappeared at the blastocyst stage. The abundance of H3K4 mono- (H3K4me) and di-methylation (H3K4me2) during the EGA period was reduced in late-cleaving and less developmentally competent embryos. By contrast, BRG1, KDM1A, and H3K4me2 abundance was greater in embryos with more than eight cells at Day 3-4 of development compared to those with fewer than four cells. These findings suggest that altered epigenetic modifications of H3K4 around the EGA period may affect the developmental capacity of porcine embryos to reach the blastocyst stage. Mol. Reprod. Dev. 84: 19-29, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Werner G Glanzner
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Audrey Wachter
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Ana Rita S Coutinho
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Marcelo S Albornoz
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Raj Duggavathi
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | - Paulo B D GonÇAlves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, Quebec, Canada
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11
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Rissi VB, Glanzner WG, Mujica LKS, Antoniazzi AQ, Gonçalves PBD, Bordignon V. Effect of Cell Cycle Interactions and Inhibition of Histone Deacetylases on Development of Porcine Embryos Produced by Nuclear Transfer. Cell Reprogram 2016; 18:8-16. [PMID: 27281695 DOI: 10.1089/cell.2015.0052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The aim of this study was to evaluate if the positive effects of inhibiting histone deacetylase enzymes on cell reprogramming and development of somatic cell nuclear transfer (SCNT) embryos is affected by the cell cycle stage of nuclear donor cells and host oocytes at the time of embryo reconstruction. SCNT embryos were produced with metaphase II (MII) or telophase II (TII) cytoplasts and nuclear donor cells that were either at the G1-0 or G2/M stages. Embryos reconstructed with the different cell cycle combinations were treated or not with the histone deacetylase inhibitor (HDACi) Scriptaid for 15 h and then cultured in vitro for 7 days. Embryos reconstructed with MII-G1-0 and TII-G2/M developed to the blastocyst stage with a higher frequency compared to the other groups, confirming the importance of cell cycle interactions on cell reprogramming and SCNT embryo development. Treatment with HDACi improved development of SCNT embryos produced with MII but not TII cytoplasts, independently of the cell cycle stage of nuclear donor cells. These findings provide evidence that the positive effect of HDACi treatment on development of SCNT embryos depends upon cell cycle interactions between the host cytoplast and the nuclear donor cells.
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Affiliation(s)
- Vitor B Rissi
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Werner G Glanzner
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Lady K S Mujica
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Alfredo Q Antoniazzi
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Paulo B D Gonçalves
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Vilceu Bordignon
- 2 Department of Animal Science, McGill University , Ste. Anne de Bellevue, Quebec, Canada , H9X 3V9
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12
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Ourique GM, Saccol EM, Pês TS, Glanzner WG, Schiefelbein SH, Woehl VM, Baldisserotto B, Pavanato MA, Gonçalves PB, Barreto KP. Protective effect of vitamin E on sperm motility and oxidative stress in valproic acid treated rats. Food Chem Toxicol 2016; 95:159-67. [DOI: 10.1016/j.fct.2016.07.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 07/07/2016] [Accepted: 07/12/2016] [Indexed: 11/26/2022]
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13
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Pês TS, Saccol EMH, Ourique GM, Londero ÉP, Gressler LT, Finamor IA, Rotili DA, Golombieski JI, Glanzner WG, Llesuy SF, Gonçalves PBD, Radünz Neto J, Baldisserotto B, Pavanato MA. Effect of diets enriched with rutin on blood parameters, oxidative biomarkers and pituitary hormone expression in silver catfish (Rhamdia quelen). Fish Physiol Biochem 2016; 42:321-333. [PMID: 26468115 DOI: 10.1007/s10695-015-0140-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
The effects of adding rutin to the diet (0, 0.15 or 0.30%) of silver catfish for 21 days on blood parameters, oxidative stress biomarkers and pituitary hormones expression were investigated. Fish that received the diet containing 0.15% rutin exhibited reduced plasma cortisol levels. The levels of lipid peroxidation were lowered in the all tissues of animals receiving the diet containing rutin. Rutin increased the activity of the superoxide dismutase (SOD), catalase (CAT), nonprotein thiols (NPSH), ascorbic acid content (AA) and total reactive antioxidant potential (TRAP) in the brain; glutathione S-transferase (GST) activity and TRAP in the gills; SOD, CAT and GST activity, NPSH, AA levels and TRAP in the liver; CAT and GST activity and TRAP levels in the kidneys; and glutathione peroxidase activity, NPSH, AA levels and TRAP in the muscle. There were no changes regarding the expression of growth hormone, prolactin and somatolactin in fish fed with the diet containing rutin when compared with the control. The supplementation of rutin to the diet of fish is beneficial because it increases the antioxidant responses of tissues.
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14
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Souza CDF, Salbego J, Gressler LT, Golombieski JI, Ferst JG, Cunha MA, Heinzmann BM, Caron BO, Glanzner WG, Gonçalves PBD, Baldisserotto B. Rhamdia quelen (Quoy & Gaimard, 1824), submitted to a stressful condition: effect of dietary addition of the essential oil of Lippia alba on metabolism, osmoregulation and endocrinology. Neotrop ichthyol 2015. [DOI: 10.1590/1982-0224-20140153] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT The aim of this study was to evaluate the effect of the essential oil of Lippia alba (EOLA) as a feed additive on ionoregulatory and metabolic parameters and pituitary hormones expression in silver catfish, Rhamdia quelen , submitted to a stressful condition (stocking density of 10.6 kg m-3 and limited space). Fish were fed with different concentrations of EOLA (0.0 - control, 0.25 and 0.50 mL kg food-1) for 20 days. Metabolic parameters were not affected by the diet, with the exception of alanine aminotransferase, which was higher in the liver of fish fed 0.50 mL EOLA kg food-1. Plasma ions and activity of H+-ATPase did not change, but fish fed 0.25 mL EOLA kg food-1 presented higher Na+/K+-ATPase activity. Somatolactin expression in the pituitary was higher in the fish fed 0.25 mL EOLA kg food -1, but the expression of growth hormone and prolactin did not change. Therefore, dietary EOLA does not exert a protective effect in R. quelen submitted to a stressful situation because it did not alter most measured parameters. The use of 0.25 mL EOLA kg food-1 seems to be more suitable than 0.50 mL EOLA kg food-1 since the latter may be related to liver damage.
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15
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Gutierrez K, Glanzner WG, Chemeris RO, Rigo ML, Comim FV, Bordignon V, Gonçalves PBD. Gonadotoxic effects of busulfan in two strains of mice. Reprod Toxicol 2015; 59:31-9. [PMID: 26524245 DOI: 10.1016/j.reprotox.2015.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 05/12/2015] [Revised: 08/31/2015] [Accepted: 09/15/2015] [Indexed: 02/07/2023]
Abstract
Busulfan is a chemotherapy drug that has side effects on spermatogonial stem cells (SSC). The effects of bulsufan treatment on male germ cells and fertility vary significantly between individuals. In this study, we have used molecular, cellular and histopathology approaches to investigate the effects of a single intraperitoneal dose of busulfan (40mgkg(-1)) in two mice strains, Balb/C and Swiss, at two different periods after treatment, 30 and 90 days. Testicular degeneration was observed in both Balb/C and Swiss mice after busulfan injection. Interestingly, testicular functions and fertility recovered spontaneously post busulfan treatment in Swiss mice, but not in Balb/C mice. Abnormal fertility induced by busulfan in Balb/C mice was associated with altered seminiferous tubules, sperm morphology and transcript levels of Nanos2, Nanos3, Gdnf and Plzf genes. These findings revealed that SSC of Balb/C mice are more sensitive to the toxic effects of busulfan then those of Swiss mice.
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Affiliation(s)
- Karina Gutierrez
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Werner G Glanzner
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Raiza O Chemeris
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Melânia L Rigo
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Fabio V Comim
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil; Department of Clinical Medicine -Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, 21,111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X3V9 Canada.
| | - Paulo B D Gonçalves
- Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM), Santa Maria, Brazil.
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16
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Gutierrez K, Dicks N, Glanzner WG, Agellon LB, Bordignon V. Efficacy of the porcine species in biomedical research. Front Genet 2015; 6:293. [PMID: 26442109 PMCID: PMC4584988 DOI: 10.3389/fgene.2015.00293] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/04/2015] [Indexed: 01/02/2023] Open
Abstract
Since domestication, pigs have been used extensively in agriculture and kept as companion animals. More recently they have been used in biomedical research, given they share many physiological and anatomical similarities with humans. Recent technological advances in assisted reproduction, somatic cell cloning, stem cell culture, genome editing, and transgenesis now enable the creation of unique porcine models of human diseases. Here, we highlight the potential applications and advantages of using pigs, particularly minipigs, as indispensable large animal models in fundamental and clinical research, including the development of therapeutics for inherited and chronic disorders, and cancers.
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Affiliation(s)
- Karina Gutierrez
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue QC, Canada
| | - Naomi Dicks
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue QC, Canada
| | - Werner G Glanzner
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue QC, Canada
| | - Luis B Agellon
- School of Dietetics and Human Nutrition, McGill University, Sainte-Anne-de-Bellevue QC, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue QC, Canada
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17
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Konopka CK, Glanzner WG, Rigo ML, Rovani MT, Comim FV, Gonçalves PBD, Morais EN, Antoniazzi AQ, Mello CF, Cruz IBM. Responsivity to PGE2 labor induction involves concomitant differential prostaglandin E receptor gene expression in cervix and myometrium. Genet Mol Res 2015; 14:10877-87. [PMID: 26400315 DOI: 10.4238/2015.september.9.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Prostaglandin E2 (dinoprostone) is largely used for labor induction. However, one-third of patients do not respond to treatment. One cause of this poor response may be associated with changes in regulation of prostaglandin E receptors (EP1-4). In this study, we investigated EP mRNA expression in the uterine cervix and lower uterine segment myometrium for term births. Biopsies were obtained from women with successful (responders) and failed (non-responders) dinoprostone labor induction, while women that underwent spontaneous labor were included as controls. EP1 mRNA was upregulated in the cervical tissue of women who did not respond to dinoprostone induction. In addition, in the myometrium, significantly higher levels of EP3 mRNA were observed in women treated with dinoprostone, independent of their responsiveness. Dinoprostone-responders presented 3.6-fold higher levels of EP3 mRNA expression than the spontaneous labor group. Significantly higher levels of EP3 mRNA in the myometrium of the dinoprostone-treated group indicated that dinoprostone may regulate the EP3 gene on the transcriptional level. These results highlight the relationship between EP gene expression and delivery and indicate that understanding the regulation of prostaglandin E receptors may lead to improved labor induction.
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Affiliation(s)
- C K Konopka
- Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - W G Glanzner
- Laboratório de Biotecnologia e Reprodução Animal, Departamento de Clínica de Grandes Animais
| | - M L Rigo
- Laboratório de Biotecnologia e Reprodução Animal, Departamento de Clínica de Grandes Animais
| | - M T Rovani
- Laboratório de Biotecnologia e Reprodução Animal, Departamento de Clínica de Grandes Animais
| | - F V Comim
- Laboratório de Biotecnologia e Reprodução Animal, Departamento de Clínica de Grandes Animais
| | - P B D Gonçalves
- Laboratório de Biotecnologia e Reprodução Animal, Departamento de Clínica de Grandes Animais
| | - E N Morais
- Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - A Q Antoniazzi
- Laboratório de Biotecnologia e Reprodução Animal, Departamento de Clínica de Grandes Animais
| | - C F Mello
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - I B M Cruz
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
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18
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Dolci GS, Vey LT, Schuster AJ, Roversi K, Roversi K, Dias VT, Pase CS, Barcelos RCS, Antoniazzi CTD, Golombieski JI, Glanzner WG, Anezi Junior PA, Gonçalves PBD, Nunes MAG, Dressler VL, Baldisserotto B, Burger ME. Hypoxia acclimation protects against oxidative damage and changes in prolactin and somatolactin expression in silver catfish (Rhamdia quelen) exposed to manganese. Aquat Toxicol 2014; 157:175-185. [PMID: 25456232 DOI: 10.1016/j.aquatox.2014.10.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 10/17/2014] [Accepted: 10/21/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to assess the Mn toxicity to silver catfish considering Mn accumulation and oxidative status in different tissues, as well as pituitary hormone expression after acclimation to hypoxia. Silver catfish acclimated to hypoxia for 10 days and successively exposed to Mn (9.8 mg L(-1)) for an additional 10 days exhibited lower Mn accumulation in plasma, liver, kidneys and brain and prevented the hematocrit decrease observed in the normoxia group. Hypoxia acclimation also modified Mn-induced oxidative damage, which was observed by lower reactive species (RS) generation in gills and kidneys, decreased lipid peroxidation (LP) levels in gills, liver and kidneys and decreased protein carbonyl (PC) levels in liver, kidneys and brain. Manganese accumulation showed positive correlations with LP levels in gills and kidneys, as well as with PC levels in gills, liver and brain. In addition, hypoxia acclimation and Mn exposure increased catalase (CAT) activity in gills and kidneys and Na(+)/K(+)-ATPase activity in gills, liver and brain. Silver catfish that were acclimated under normoxia and exposed to Mn displayed increased pituitary prolactin (PRL) and decreased somatolactin (SL) expression. Interestingly, hypoxia acclimation prevented hormonal fluctuation of PRL and SL in fish exposed to Mn. These findings indicate that while the exposure of silver catfish to Mn under normoxia was related to metal accumulation and oxidative damage in tissues together with endocrine axis disruption, as represented by PRL and SL, hypoxia acclimation reduced waterborne Mn uptake, thereby minimizing oxidative damage and changes in hormonal profile. We hypothesized that moderate hypoxia is able to generate adaptive responses, which may be related to hormesis, thereby ameliorating Mn toxicity to silver catfish.
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Affiliation(s)
- G S Dolci
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil
| | - L T Vey
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil
| | - A J Schuster
- Departamento de Fisiologia e Farmacologia - UFSM, Brazil
| | - Kr Roversi
- Departamento de Fisiologia e Farmacologia - UFSM, Brazil
| | - K Roversi
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil
| | - V T Dias
- Departamento de Fisiologia e Farmacologia - UFSM, Brazil
| | - C S Pase
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil
| | - R C S Barcelos
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil
| | | | | | - W G Glanzner
- Programa de Pós Graduação em Medicina Veterinária - UFSM, Brazil
| | - P A Anezi Junior
- Programa de Pós-Graduação em Química - UFSM, Brazil; Departamento de Clínica de Grandes Animais - UFSM, Brazil
| | - P B D Gonçalves
- Programa de Pós-Graduação em Química - UFSM, Brazil; Programa de Pós Graduação em Medicina Veterinária - UFSM, Brazil; Departamento de Clínica de Grandes Animais - UFSM, Brazil
| | - M A G Nunes
- Programa de Pós-Graduação em Química - UFSM, Brazil; Departamento de Clínica de Grandes Animais - UFSM, Brazil
| | - V L Dressler
- Programa de Pós-Graduação em Química - UFSM, Brazil; Departamento de Clínica de Grandes Animais - UFSM, Brazil
| | - B Baldisserotto
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil; Departamento de Fisiologia e Farmacologia - UFSM, Brazil
| | - M E Burger
- Programa de Pós Graduação em Farmacologia - UFSM, Brazil; Departamento de Fisiologia e Farmacologia - UFSM, Brazil.
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De Cesaro MP, Trois RL, Gutierrez K, Siqueira L, Rigo ML, Glanzner WG, Oliveira JF, Gonçalves PB. The Functional Role of Oxytocin in the Induction of Oocyte Meiotic Resumption in Cattle. Reprod Domest Anim 2013; 48:844-9. [DOI: 10.1111/rda.12173] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 03/10/2013] [Indexed: 11/27/2022]
Affiliation(s)
- MP De Cesaro
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - RL Trois
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - K Gutierrez
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - L Siqueira
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - ML Rigo
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - WG Glanzner
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - JF Oliveira
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
| | - PB Gonçalves
- Laboratory of Biotechnology and Animal Reproduction; Federal University of Santa Maria; Santa Maria; RS; Brazil
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