Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFMA |
Texto Completo: | http://tedebc.ufma.br:8080/jspui/handle/tede/1628 |
Resumo: | Synthetic glucocorticoids (GCs) induce several adverse effects when administered in high doses and/or prolonged, as peripheral insulin resistance, glucose intolerance, and alterations in lipid metabolism, especially hypertriglyceridemia. There are few studies on the metabolic impact caused by long-term treatments with different synthetic GCs, especially with prednisone, GC of intermediate action and first choice in its pharmacologic class. Therefore, we seek to verify the metabolic alterations caused by sub chronic treatment with prednisone in rats and compare them with existing and in acute model of insulin resistance induced by dexamethasone effects. For this, Wistar rats with of 90 days were treated with dexamethasone (D5) (1 mg/kg, i.p.) for 5 consecutive days and, its controls (C5) with saline, and Wistar rats of 60 days old were treated with prednisone (80 mg/kg, orally) for 15 days (P15) and 30 days (P30) consecutive and their respective controls (C15 and C30), received vehicle solution. The D5 results a decreased body weight (12.3%) and lower weight of retroperitoneal fat (38%), increased serum fasting glucose (12%) and fed (30%), insulin (80%) and triglycerides (339%) (p <0.05). Total fat and triglycerides liver were 29% and 52% higher in rats D5, compared to the C5 rats (p <0.05). The P15 rats had increased weight 61% less, reduction of retroperitoneal fat (29%) and increased plasma triglyceride concentrations (60%) compared to the C15 rats (p <0.05). As long as P30 rats had increased weight 44% less, reduction of retroperitoneal fat (25%) and increased serum triglycerides (78%) and liver total fat (26%) compared to the C30 rats (p <0,05). In vivo tests revealed the presence of impaired glucose tolerance (oGTT) in rats D5 and P30, and reduced insulin sensitivity (ipITT, HOMA, TYG) in D5 animals (p <0.05). Ex vivo test showed greater sensitivity in the pancreatic islets front glucose only in D5 rats. In conclusion, the sub chronic administration of prednisone promoted finer metabolic changes in glucose homeostasis, compared to acute administration of dexamethasone, suggesting the preferential use of prednisone when it is intended to minimize the adverse metabolic effects associated with the use of GCs. |
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PAES, Antonio Marcus de Andrade453.497.113-34Abreu, Iracelle Carvalho028.093.753-99http://lattes.cnpq.br/8132636072406316MELO, Danylo Noleto de Sousa2017-06-14T17:35:19Z2016-09-29MELO, Danylo Noleto de Sousa. Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona. 2016. 53 f. Dissertação (Programa de Pós-Graduação em Ciências da Saúde) - Universidade Federal do Maranhão, São Luís, 2016.http://tedebc.ufma.br:8080/jspui/handle/tede/1628Synthetic glucocorticoids (GCs) induce several adverse effects when administered in high doses and/or prolonged, as peripheral insulin resistance, glucose intolerance, and alterations in lipid metabolism, especially hypertriglyceridemia. There are few studies on the metabolic impact caused by long-term treatments with different synthetic GCs, especially with prednisone, GC of intermediate action and first choice in its pharmacologic class. Therefore, we seek to verify the metabolic alterations caused by sub chronic treatment with prednisone in rats and compare them with existing and in acute model of insulin resistance induced by dexamethasone effects. For this, Wistar rats with of 90 days were treated with dexamethasone (D5) (1 mg/kg, i.p.) for 5 consecutive days and, its controls (C5) with saline, and Wistar rats of 60 days old were treated with prednisone (80 mg/kg, orally) for 15 days (P15) and 30 days (P30) consecutive and their respective controls (C15 and C30), received vehicle solution. The D5 results a decreased body weight (12.3%) and lower weight of retroperitoneal fat (38%), increased serum fasting glucose (12%) and fed (30%), insulin (80%) and triglycerides (339%) (p <0.05). Total fat and triglycerides liver were 29% and 52% higher in rats D5, compared to the C5 rats (p <0.05). The P15 rats had increased weight 61% less, reduction of retroperitoneal fat (29%) and increased plasma triglyceride concentrations (60%) compared to the C15 rats (p <0.05). As long as P30 rats had increased weight 44% less, reduction of retroperitoneal fat (25%) and increased serum triglycerides (78%) and liver total fat (26%) compared to the C30 rats (p <0,05). In vivo tests revealed the presence of impaired glucose tolerance (oGTT) in rats D5 and P30, and reduced insulin sensitivity (ipITT, HOMA, TYG) in D5 animals (p <0.05). Ex vivo test showed greater sensitivity in the pancreatic islets front glucose only in D5 rats. In conclusion, the sub chronic administration of prednisone promoted finer metabolic changes in glucose homeostasis, compared to acute administration of dexamethasone, suggesting the preferential use of prednisone when it is intended to minimize the adverse metabolic effects associated with the use of GCs.Os glicocorticoides (GCs) sintéticos podem induzir diversos efeitos adversos, quando administrados em doses elevadas e/ou por tempo prolongado, como resistência insulínica periférica, intolerância à glicose, e alterações no metabolismo lipídico, especialmente hipertrigliceridemia. Porém existem poucos estudos sobre o impacto metabólico promovido por tratamentos prolongados com diferentes GCs sintéticos, especialmente com a prednisona, GC de ação intermediária e de primeira escolha em sua classe farmacológica. Diante disso, buscou-se verificar as alterações metabólicas ocasionadas pelo tratamento subcrônico com prednisona em ratos e compará-las aos efeitos presentes e conhecidos em modelo agudo de indução de resistência insulínica pela dexametasona. Para tal, ratos Wistar com noventa dias de vida foram tratados com dexametasona (D5) (1 mg/Kg, i.p.) durante 5 dias consecutivos e, os seus controles (C5) com salina, e ratos Wistar com 60 dias de vida foram tratados com prednisona (80 mg/Kg, v.o.) durante 15 dias (P15) e 30 dias (P30) consecutivos e, os seus respectivos controles (C15 e C30), receberam veículo. Os ratos D5 apresentaram redução do peso corpóreo (12,3%) e menor peso da gordura retroperitoneal (38%), aumento das concentrações séricas de glicose em jejum (12%) e alimentado (30%), insulina (80%) e triglicerídeos (339%) (p<0,05). O conteúdo de gordura total hepático, bem como triglicerídeos foram 29% e 52% maiores nos ratos D5, em relação aos ratos C5 (p<0,05). Os ratos P15 apresentaram um ganho de peso 61% menor, redução da gordura retroperitoneal (29%) e aumento nas concentrações plasmáticas de triglicerídeos (60%), em relação aos ratos C15 (p<0,05). Enquanto os ratos P30 apresentaram um ganho de peso 44% menor, redução da gordura retroperitoneal (25%) e aumento nas concentrações séricas de triglicerídeos (78%) e gordura total hepática (26%), em relação aos ratos C30 (p<0,05). Os testes in vivo revelaram a presença de intolerância à glicose (GTT) nos ratos D5 e P30 e redução da sensibilidade à insulina (ITT, HOMA, TyG) nos animais D5 (p<0,05). O teste ex vivo revelou maior sensibilidade nas ilhotas pancreáticas frente à glicose somente nos ratos D5. Em conclusão, a administração subcrônica de prednisona promoveu alterações metabólicas mais sutis na homeostasia da glicose, quando comparada à administração aguda de dexametasona, sugerindo assim, o uso preferencial da prednisona quando se pretende minimização dos efeitos adversos metabólicos associados ao uso de GCs.Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-06-14T17:35:19Z No. of bitstreams: 1 DanyloMelo.pdf: 745489 bytes, checksum: c5ad51adb0decdb7d8050bcf5074660b (MD5)Made available in DSpace on 2017-06-14T17:35:19Z (GMT). No. of bitstreams: 1 DanyloMelo.pdf: 745489 bytes, checksum: c5ad51adb0decdb7d8050bcf5074660b (MD5) Previous issue date: 2016-09-29Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ)Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão (FAPEMA)application/pdfporUniversidade Federal do MaranhãoPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIAS DA SAÚDE/CCBSUFMABrasilDEPARTAMENTO DE MEDICINA I/CCBSDexametasonaPrednisonaHomeostase da glicoseSensibilidade à insulinaSecreção insulínicaHipertrigliceridemiaDexamethasonePrednisoneGlucose homeostasisInsulin sensitivityInsulin secretionHypertriglyceridemiaEndocrinologiaFarmáciaEfeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisonaEFFECTS OF USING GLICOCORTICOIDES ON THE METABOLISM OF GLUCOSE IN RATS: A COMPARATIVE STUDY BETWEEN DEXAMETHASONE AND PREDNISONEinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFMAinstname:Universidade Federal do Maranhão (UFMA)instacron:UFMAORIGINALDanyloMelo.pdfDanyloMelo.pdfapplication/pdf745489http://tedebc.ufma.br:8080/bitstream/tede/1628/2/DanyloMelo.pdfc5ad51adb0decdb7d8050bcf5074660bMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82255http://tedebc.ufma.br:8080/bitstream/tede/1628/1/license.txt97eeade1fce43278e63fe063657f8083MD51tede/16282023-01-18 15:19:58.316oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttps://tedebc.ufma.br/jspui/PUBhttp://tedebc.ufma.br:8080/oai/requestrepositorio@ufma.br||repositorio@ufma.bropendoar:21312023-01-18T18:19:58Biblioteca Digital de Teses e Dissertações da UFMA - Universidade Federal do Maranhão (UFMA)false |
dc.title.por.fl_str_mv |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
dc.title.alternative.eng.fl_str_mv |
EFFECTS OF USING GLICOCORTICOIDES ON THE METABOLISM OF GLUCOSE IN RATS: A COMPARATIVE STUDY BETWEEN DEXAMETHASONE AND PREDNISONE |
title |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
spellingShingle |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona MELO, Danylo Noleto de Sousa Dexametasona Prednisona Homeostase da glicose Sensibilidade à insulina Secreção insulínica Hipertrigliceridemia Dexamethasone Prednisone Glucose homeostasis Insulin sensitivity Insulin secretion Hypertriglyceridemia Endocrinologia Farmácia |
title_short |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
title_full |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
title_fullStr |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
title_full_unstemmed |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
title_sort |
Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona |
author |
MELO, Danylo Noleto de Sousa |
author_facet |
MELO, Danylo Noleto de Sousa |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
PAES, Antonio Marcus de Andrade |
dc.contributor.advisor1ID.fl_str_mv |
453.497.113-34 |
dc.contributor.advisor-co1.fl_str_mv |
Abreu, Iracelle Carvalho |
dc.contributor.authorID.fl_str_mv |
028.093.753-99 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8132636072406316 |
dc.contributor.author.fl_str_mv |
MELO, Danylo Noleto de Sousa |
contributor_str_mv |
PAES, Antonio Marcus de Andrade Abreu, Iracelle Carvalho |
dc.subject.por.fl_str_mv |
Dexametasona Prednisona Homeostase da glicose Sensibilidade à insulina Secreção insulínica Hipertrigliceridemia Dexamethasone Prednisone Glucose homeostasis Insulin sensitivity Insulin secretion Hypertriglyceridemia |
topic |
Dexametasona Prednisona Homeostase da glicose Sensibilidade à insulina Secreção insulínica Hipertrigliceridemia Dexamethasone Prednisone Glucose homeostasis Insulin sensitivity Insulin secretion Hypertriglyceridemia Endocrinologia Farmácia |
dc.subject.cnpq.fl_str_mv |
Endocrinologia Farmácia |
description |
Synthetic glucocorticoids (GCs) induce several adverse effects when administered in high doses and/or prolonged, as peripheral insulin resistance, glucose intolerance, and alterations in lipid metabolism, especially hypertriglyceridemia. There are few studies on the metabolic impact caused by long-term treatments with different synthetic GCs, especially with prednisone, GC of intermediate action and first choice in its pharmacologic class. Therefore, we seek to verify the metabolic alterations caused by sub chronic treatment with prednisone in rats and compare them with existing and in acute model of insulin resistance induced by dexamethasone effects. For this, Wistar rats with of 90 days were treated with dexamethasone (D5) (1 mg/kg, i.p.) for 5 consecutive days and, its controls (C5) with saline, and Wistar rats of 60 days old were treated with prednisone (80 mg/kg, orally) for 15 days (P15) and 30 days (P30) consecutive and their respective controls (C15 and C30), received vehicle solution. The D5 results a decreased body weight (12.3%) and lower weight of retroperitoneal fat (38%), increased serum fasting glucose (12%) and fed (30%), insulin (80%) and triglycerides (339%) (p <0.05). Total fat and triglycerides liver were 29% and 52% higher in rats D5, compared to the C5 rats (p <0.05). The P15 rats had increased weight 61% less, reduction of retroperitoneal fat (29%) and increased plasma triglyceride concentrations (60%) compared to the C15 rats (p <0.05). As long as P30 rats had increased weight 44% less, reduction of retroperitoneal fat (25%) and increased serum triglycerides (78%) and liver total fat (26%) compared to the C30 rats (p <0,05). In vivo tests revealed the presence of impaired glucose tolerance (oGTT) in rats D5 and P30, and reduced insulin sensitivity (ipITT, HOMA, TYG) in D5 animals (p <0.05). Ex vivo test showed greater sensitivity in the pancreatic islets front glucose only in D5 rats. In conclusion, the sub chronic administration of prednisone promoted finer metabolic changes in glucose homeostasis, compared to acute administration of dexamethasone, suggesting the preferential use of prednisone when it is intended to minimize the adverse metabolic effects associated with the use of GCs. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-09-29 |
dc.date.accessioned.fl_str_mv |
2017-06-14T17:35:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
MELO, Danylo Noleto de Sousa. Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona. 2016. 53 f. Dissertação (Programa de Pós-Graduação em Ciências da Saúde) - Universidade Federal do Maranhão, São Luís, 2016. |
dc.identifier.uri.fl_str_mv |
http://tedebc.ufma.br:8080/jspui/handle/tede/1628 |
identifier_str_mv |
MELO, Danylo Noleto de Sousa. Efeitos do uso de glicocorticoides sobre o metabolismo da glicose em ratos: estudo comparativo entre dexametasona e prednisona. 2016. 53 f. Dissertação (Programa de Pós-Graduação em Ciências da Saúde) - Universidade Federal do Maranhão, São Luís, 2016. |
url |
http://tedebc.ufma.br:8080/jspui/handle/tede/1628 |
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por |
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por |
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openAccess |
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Universidade Federal do Maranhão |
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UFMA |
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Brasil |
dc.publisher.department.fl_str_mv |
DEPARTAMENTO DE MEDICINA I/CCBS |
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Universidade Federal do Maranhão |
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