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Registro Completo |
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
31/08/2021 |
Data da última atualização: |
31/08/2021 |
Tipo da produção científica: |
Nota Técnica/Nota Científica |
Autoria: |
ANDRADE, J. de S.; ZULIAN, J. P.; SINGH, J.; SETÚBAL, S. da S.; SILVA, R. R. da; SCHNEIDER, A.; PFEIFER, L. F. M. |
Afiliação: |
JÉSSICA DE SOUZA ANDRADE, RedeBionorte, Programa de Pós-graduação em Biodiversidade e Biotecnologia.; JULIANA PAVAN ZULIAN, Fundação Oswaldo Cruz de Rondônia, Laboratório de Imunologia Aplicada à Saúde; JASWANT SINGH, University of Saskatchewan, Veterinary Biomedical Sciences, Saskatoon – SK, Canada; SULAMITA DA SILVA SETÚBAL, Fundação Oswaldo Cruz de Rondônia, Laboratório de Imunologia Aplicada à Saúde; RENATA REIS DA SILVA, CPAF-RO; AUGUSTO SCHNEIDER, Universidade Federal de Pelotas (UFPel); LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO. |
Título: |
Prostaglandin E2 induces ovulation in prepubertal mice. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Brazilian Journal of Veterinary Research and Animal Science, v. 58, e82745, 2021. |
ISSN: |
1678-4456 (Online) |
DOI: |
https://doi.org/10.11606/issn.1678-4456.bjvras.2021.182745 |
Idioma: |
Inglês |
Conteúdo: |
The objective of this study was to determine the ability of prostaglandin E2 (PGE2) to induce ovulation and expression of PGE2 receptor (EP2 and EP4) and COX genes (COX-1 and COX-2) in the ovary and pituitary of prepubertal mice. Thepositive control consisted of the application of 5 µg of gonadotropin-releasing hormone (GnRH, n = 29); the negativecontrol applied 0.5 mL of phosphate buffered saline (PBS, n=31); the treatment tested the application of 250 µg of PGE2 (n = 29), making a total of 89 prepubertal mice (BALB/c). Mice were euthanized 14 to 15 h after treatments to detectovulation and tissue collection. A Chi-square test was used to compare the proportion of animals ovulating. Geneexpressions and number of ovulation were analyzed by one-way ANOVA and Tukey?s test was used to compare meansamong groups. A greater proportion of mice (P < 0.001) ovulated after receiving GnRH (89.7%, 26/29) compared to PGE2 group (58.6%, 17/29). However, the proportion was higher compared to those treated with PBS (0%, 0/31). Ep2 gene expression in the pituitary was > two-fold higher (P < 0.05) in the PGE2 group compared to the PBS and GnRH groups. Further, PGE2 stimulated Cox1 (2.7 fold, P < 0.05) while GnRH stimulated Cox2 expression (6.5 fold, P < 0.05) in the pituitary when compared to the PBS group. In conclusion, our results support the hypothesis that PGE2 can induce ovulation in prepubertal mice with a concomitant increase in Ep2 and Cox1 gene expression in the pituitary gland. O objetivo deste estudo foi determinar a capacidade da prostaglandina E2 (PGE2) em induzir a ovulação e expressão do receptor PGE2 (EP2 e EP4) e genes COX (COX-1 e COX-2) no ovário e na hipófise de camundongos pré-púberes. O controle positivo consistiu na aplicação de 5 µg de hormônio liberador de gonadotrofina (GnRH, n = 29); o controle negativo aplicação 0,5 mL de tampão fosfato-salino (PBS, n=31); o tratamento testado aplicação de 250 µg de PGE2 (n = 29), perfazendo um total de 89 camundongos (BALB/c) pré-púberes. Os camundongos foram sacrificados 14 a 15 h após os tratamentos para detectar ovulações e coleta de tecido. O teste do qui-quadrado foi usado para comparar a proporção de animais ovulando. As expressões gênicas e o número de ovulação foram analisados por ANOVA e o teste de tukey foi usado para comparar as médias entre os grupos. Uma maior proporção de camundongos (P <0,001) ovulou após receber GnRH (89,7%, 26/29) em comparação com o grupo PGE2 (58,6%, 17/29). No entanto, a proporção foi maior em comparação com aqueles tratados com PBS (0%, 0/31). A expressão do gene Ep2 na hipófise foi duas vezes maior (P <0,05) no grupo PGE2 em comparação com os grupos PBS e GnRH. Além disso, a PGE2 estimulou a Cox1(2,7 vezes, P <0,05) enquanto o GnRH estimulou a expressão de Cox2 (6,5 vezes, P <0,05) na pituitária em comparação com o grupo PBS. Em conclusão, nossos resultados suportam a hipótese de que PGE2 é capaz de induzir ovulação em camundongos pré-púberes com aumento concomitante na expressão dos genes Ep2 e Cox1 na glândula pituitária. MenosThe objective of this study was to determine the ability of prostaglandin E2 (PGE2) to induce ovulation and expression of PGE2 receptor (EP2 and EP4) and COX genes (COX-1 and COX-2) in the ovary and pituitary of prepubertal mice. Thepositive control consisted of the application of 5 µg of gonadotropin-releasing hormone (GnRH, n = 29); the negativecontrol applied 0.5 mL of phosphate buffered saline (PBS, n=31); the treatment tested the application of 250 µg of PGE2 (n = 29), making a total of 89 prepubertal mice (BALB/c). Mice were euthanized 14 to 15 h after treatments to detectovulation and tissue collection. A Chi-square test was used to compare the proportion of animals ovulating. Geneexpressions and number of ovulation were analyzed by one-way ANOVA and Tukey?s test was used to compare meansamong groups. A greater proportion of mice (P < 0.001) ovulated after receiving GnRH (89.7%, 26/29) compared to PGE2 group (58.6%, 17/29). However, the proportion was higher compared to those treated with PBS (0%, 0/31). Ep2 gene expression in the pituitary was > two-fold higher (P < 0.05) in the PGE2 group compared to the PBS and GnRH groups. Further, PGE2 stimulated Cox1 (2.7 fold, P < 0.05) while GnRH stimulated Cox2 expression (6.5 fold, P < 0.05) in the pituitary when compared to the PBS group. In conclusion, our results support the hypothesis that PGE2 can induce ovulation in prepubertal mice with a concomitant increase in Ep2 and Cox1 gene expression in the pituitary gland. O o... Mostrar Tudo |
Palavras-Chave: |
Camundongos pré-púberes; Inducción de la ovulación; Ovulation induction; Prepubertal mice; Prostagladina E2; Ratones prepúberes; Receptor PGE2. |
Thesagro: |
Indução; Ovulação. |
Thesaurus Nal: |
Prostaglandins. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225604/1/cpafro-18593.pdf
|
Marc: |
LEADER 04167naa a2200337 a 4500 001 2133952 005 2021-08-31 008 2021 bl uuuu u00u1 u #d 022 $a1678-4456 (Online) 024 7 $ahttps://doi.org/10.11606/issn.1678-4456.bjvras.2021.182745$2DOI 100 1 $aANDRADE, J. de S. 245 $aProstaglandin E2 induces ovulation in prepubertal mice.$h[electronic resource] 260 $c2021 520 $aThe objective of this study was to determine the ability of prostaglandin E2 (PGE2) to induce ovulation and expression of PGE2 receptor (EP2 and EP4) and COX genes (COX-1 and COX-2) in the ovary and pituitary of prepubertal mice. Thepositive control consisted of the application of 5 µg of gonadotropin-releasing hormone (GnRH, n = 29); the negativecontrol applied 0.5 mL of phosphate buffered saline (PBS, n=31); the treatment tested the application of 250 µg of PGE2 (n = 29), making a total of 89 prepubertal mice (BALB/c). Mice were euthanized 14 to 15 h after treatments to detectovulation and tissue collection. A Chi-square test was used to compare the proportion of animals ovulating. Geneexpressions and number of ovulation were analyzed by one-way ANOVA and Tukey?s test was used to compare meansamong groups. A greater proportion of mice (P < 0.001) ovulated after receiving GnRH (89.7%, 26/29) compared to PGE2 group (58.6%, 17/29). However, the proportion was higher compared to those treated with PBS (0%, 0/31). Ep2 gene expression in the pituitary was > two-fold higher (P < 0.05) in the PGE2 group compared to the PBS and GnRH groups. Further, PGE2 stimulated Cox1 (2.7 fold, P < 0.05) while GnRH stimulated Cox2 expression (6.5 fold, P < 0.05) in the pituitary when compared to the PBS group. In conclusion, our results support the hypothesis that PGE2 can induce ovulation in prepubertal mice with a concomitant increase in Ep2 and Cox1 gene expression in the pituitary gland. O objetivo deste estudo foi determinar a capacidade da prostaglandina E2 (PGE2) em induzir a ovulação e expressão do receptor PGE2 (EP2 e EP4) e genes COX (COX-1 e COX-2) no ovário e na hipófise de camundongos pré-púberes. O controle positivo consistiu na aplicação de 5 µg de hormônio liberador de gonadotrofina (GnRH, n = 29); o controle negativo aplicação 0,5 mL de tampão fosfato-salino (PBS, n=31); o tratamento testado aplicação de 250 µg de PGE2 (n = 29), perfazendo um total de 89 camundongos (BALB/c) pré-púberes. Os camundongos foram sacrificados 14 a 15 h após os tratamentos para detectar ovulações e coleta de tecido. O teste do qui-quadrado foi usado para comparar a proporção de animais ovulando. As expressões gênicas e o número de ovulação foram analisados por ANOVA e o teste de tukey foi usado para comparar as médias entre os grupos. Uma maior proporção de camundongos (P <0,001) ovulou após receber GnRH (89,7%, 26/29) em comparação com o grupo PGE2 (58,6%, 17/29). No entanto, a proporção foi maior em comparação com aqueles tratados com PBS (0%, 0/31). A expressão do gene Ep2 na hipófise foi duas vezes maior (P <0,05) no grupo PGE2 em comparação com os grupos PBS e GnRH. Além disso, a PGE2 estimulou a Cox1(2,7 vezes, P <0,05) enquanto o GnRH estimulou a expressão de Cox2 (6,5 vezes, P <0,05) na pituitária em comparação com o grupo PBS. Em conclusão, nossos resultados suportam a hipótese de que PGE2 é capaz de induzir ovulação em camundongos pré-púberes com aumento concomitante na expressão dos genes Ep2 e Cox1 na glândula pituitária. 650 $aProstaglandins 650 $aIndução 650 $aOvulação 653 $aCamundongos pré-púberes 653 $aInducción de la ovulación 653 $aOvulation induction 653 $aPrepubertal mice 653 $aProstagladina E2 653 $aRatones prepúberes 653 $aReceptor PGE2 700 1 $aZULIAN, J. P. 700 1 $aSINGH, J. 700 1 $aSETÚBAL, S. da S. 700 1 $aSILVA, R. R. da 700 1 $aSCHNEIDER, A. 700 1 $aPFEIFER, L. F. M. 773 $tBrazilian Journal of Veterinary Research and Animal Science$gv. 58, e82745, 2021.
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Pesca e Aquicultura. |
Data corrente: |
03/11/2021 |
Data da última atualização: |
04/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ADOLFI, M. C.; DU, K.; KNEITZ, S.; CABAU, C.; ZAHM, M.; KLOPP, C.; FERON, R.; PAIXÃO, R. V.; VARELA, E. S.; O'SULLIVAN, F. L. A.; OLIVEIRA, M. A. de; NÓBREGA, R. H.; LOPEZ-ROQUES, C.; IAMPIETRO, C.; LLUCH, J.; KLOAS, W.; WUERTZ, S.; SCHAEFER, F.; STÖCK, M.; GUIGUEN, Y.; SCHARTL, M. |
Afiliação: |
MATEUS C. ADOLFI, University of Wuerzburg; KANG DU, University of Wuerzburg; SUSANNE KNEITZ, University of Wuerzburg; CÉDRIC CABAU, Université de Toulouse; MARGOT ZAHM, Université de Toulouse; CHRISTOPHE KLOPP, INRA; ROMAIN FERON, INRAE; RÔMULO V. PAIXÃO, Bolsista CPAA; EDUARDO SOUSA VARELA, CNPASA; FERNANDA LOUREIRO ALMEIDA OSULLIVAN, CPAA; MARCOS A. DE OLIVEIRA, UNESP; RAFAEL H. NÓBREGA, UNESP; CÉLINE LOPEZ-ROQUES, INRAE; CAROLE IAMPIETRO, INRAE; JÉRÔME LLUCH, INRAE; WERNER KLOAS, Institute of Freshwater Ecology and Inland Fisheries; SVEN WUERTZ, Institute of Freshwater Ecology and Inland Fisheries; FABIAN SCHAEFER, Institute of Freshwater Ecology and Inland Fisheries; MATTHIAS STÖCK, Institute of Freshwater Ecology and Inland Fisheries; YANN GUIGUEN, INRAE; MANFRED SCHARTL, Comprehensive Cancer Center Mainfranken. |
Título: |
A duplicated copy of id2b is an unusual sex-determining candidate gene on the Y chromosome of arapaima (Arapaima gigas). |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Scientific Reports, v. 11, art. 21544, 2021. |
ISSN: |
2045-2322 |
DOI: |
https://doi.org/10.1038/s41598-021-01066-z |
Idioma: |
Inglês |
Conteúdo: |
Arapaima gigas is one of the largest freshwater fish species of high ecological and economic importance. Overfishing and habitat destruction are severe threats to the remaining wild populations. By incorporating a chromosomal Hi-C contact map, we improved the arapaima genome assembly to chromosome-level, revealing an unexpected high degree of chromosome rearrangements during evolution of the bonytongues (Osteoglossiformes). Combining this new assembly with pool-sequencing of male and female genomes, we identified id2bbY, a duplicated copy of the inhibitor of DNA binding 2b (id2b) gene on the Y chromosome as candidate male sex-determining gene. A PCR-test for id2bbY was developed, demonstrating that this gene is a reliable male-specific marker for genotyping. Expression analyses showed that this gene is expressed in juvenile male gonads. Its paralog, id2ba, exhibits a male-biased expression in immature gonads. Transcriptome analyses and protein structure predictions confirm id2bbY as a prime candidate for the master sex-determiner. Acting through the TGF B signaling pathway, id2bbY from arapaima would provide the first evidence for a link of this family of transcriptional regulators to sex determination. Our study broadens our current understanding about the evolution of sex determination genetic networks and provide a tool for improving arapaima aquaculture for commercial and conservation purposes. |
Thesagro: |
Cromossoma; Peixe; Pirarucu. |
Thesaurus NAL: |
Arapaima gigas; Chromosomes; Cytogenetics; Fish; Sex chromosomes; Sex determination. |
Categoria do assunto: |
-- L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227368/1/Arapaima-sexmaster-gene-2021.pdf
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Marc: |
LEADER 02743naa a2200493 a 4500 001 2135766 005 2021-11-04 008 2021 bl uuuu u00u1 u #d 022 $a2045-2322 024 7 $ahttps://doi.org/10.1038/s41598-021-01066-z$2DOI 100 1 $aADOLFI, M. C. 245 $aA duplicated copy of id2b is an unusual sex-determining candidate gene on the Y chromosome of arapaima (Arapaima gigas).$h[electronic resource] 260 $c2021 520 $aArapaima gigas is one of the largest freshwater fish species of high ecological and economic importance. Overfishing and habitat destruction are severe threats to the remaining wild populations. By incorporating a chromosomal Hi-C contact map, we improved the arapaima genome assembly to chromosome-level, revealing an unexpected high degree of chromosome rearrangements during evolution of the bonytongues (Osteoglossiformes). Combining this new assembly with pool-sequencing of male and female genomes, we identified id2bbY, a duplicated copy of the inhibitor of DNA binding 2b (id2b) gene on the Y chromosome as candidate male sex-determining gene. A PCR-test for id2bbY was developed, demonstrating that this gene is a reliable male-specific marker for genotyping. Expression analyses showed that this gene is expressed in juvenile male gonads. Its paralog, id2ba, exhibits a male-biased expression in immature gonads. Transcriptome analyses and protein structure predictions confirm id2bbY as a prime candidate for the master sex-determiner. Acting through the TGF B signaling pathway, id2bbY from arapaima would provide the first evidence for a link of this family of transcriptional regulators to sex determination. Our study broadens our current understanding about the evolution of sex determination genetic networks and provide a tool for improving arapaima aquaculture for commercial and conservation purposes. 650 $aArapaima gigas 650 $aChromosomes 650 $aCytogenetics 650 $aFish 650 $aSex chromosomes 650 $aSex determination 650 $aCromossoma 650 $aPeixe 650 $aPirarucu 700 1 $aDU, K. 700 1 $aKNEITZ, S. 700 1 $aCABAU, C. 700 1 $aZAHM, M. 700 1 $aKLOPP, C. 700 1 $aFERON, R. 700 1 $aPAIXÃO, R. V. 700 1 $aVARELA, E. S. 700 1 $aO'SULLIVAN, F. L. A. 700 1 $aOLIVEIRA, M. A. de 700 1 $aNÓBREGA, R. H. 700 1 $aLOPEZ-ROQUES, C. 700 1 $aIAMPIETRO, C. 700 1 $aLLUCH, J. 700 1 $aKLOAS, W. 700 1 $aWUERTZ, S. 700 1 $aSCHAEFER, F. 700 1 $aSTÖCK, M. 700 1 $aGUIGUEN, Y. 700 1 $aSCHARTL, M. 773 $tScientific Reports$gv. 11, art. 21544, 2021.
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Embrapa Pesca e Aquicultura (CNPASA) |
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