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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Influência de variantes do receptor de LDL e da HMGCoA redutase na resposta à atorvastatina / Influece of the LDL receptor and HMGCOA reductase variants in response to atorvastatin

Villazon-Gonzales, Claudia 30 May 2008 (has links)
A influencia dos polimorfismos genéticos de HMGCoA redutase (HMGCR) e LDL receptor (LDLR) na resposta a atorvastatina (10 mg/dia/4semanas) foi avaliada em individuos hipercolesterolemicos (HC). Amostras de sangue foram coletadas de 153 HC e 182 normolipidemicos (NL) para determinações de lipideos séricos e extração de DNA. Polimorfismos de troca única (SNP) HMGCR (A11898T e T24558G) e LDLR (C16730T, C20001T, G26857A) foram detectados. por PCR-RFLP. Os alelos HMGCR 11898T e 24558G foram associados com menores triglicérides e VLDL-C séricos nos grupos NL e HC (p<0,05). Além disso, o SNP HM0CR T24558G foi relacionado com HDL-C e apoAI séricos aumentados em resposta a atorvastatina no grupo HC. O alelo LDLR 20001 C foi associado com maior apoAI sérica basal no grupo NL (p=O,034) e com melhor resposta de apoAI a atorvastatina no grupo HC (p=O,045). Foi observada relação entre o haplótipo heterozigoto LDLR 20001 C/16730T e redução significativa de apoB e aumento de apoAI no soro após o tratamento com atorvastatina (p<O,05). Em conclusão, os SNPs HMGCR A 11898T e T24558G influenciam os triglicérides e VLDL-C séricos independentemente do estado lipêmico e o haplótipo LDLR 20001 C/16730T está associado com melhor resposta de apoB e ApoAI séricos em resposta a atorvastatina. / Influence of the HMGCoA reductase (HMGCR) and LDL receptor (LDLR) gene polymorphisms on response to atorvastatin (10 mg/day/4weeks) was evaluated in hypercholesterolemic (HC) individuais. Blood samples were collected from 153 HC and 182 normolipidemic (NL) individuais for serum lipids determinations and DNA extratcion. Single nucleotide polymorphisms (SNP) HMGCR (A11898T e T24558G) and LDLR (C16730T, C20001T, G26857A) were detected by PCR-RFLP. HMGCR 11898T and 24558G alleles were associated with lower serum triglycerides and VLDL-C in NL and HC groups (p<0.05). Moreover, the SNP HMGCR T24558G was related to increased serum HDL-C and apoAI in response to atorvastatin in the HC group. The LDLR 20001 C allele was associated with higher basal serum apoAI in the NL group (p=0.034) and with better response of apoAI to atorvastatin in HC group (p=0.045). There was a relationship between heterozygote LDLR 20001 C/16730T haplotype and a significant reduction of apoB and increase in apoAI serum leveis after atorvastatin treatment (p<0.05). In conclusion, the HMGCR A11898T e T24558G SNPs influence serum triglycerides and VLDL-C independently of the lipemic status and LDLR 20001 C/16730T haplotype is associated with better serum apoB and Apol response to atorvastatin treatment.
2

Influência de variantes do receptor de LDL e da HMGCoA redutase na resposta à atorvastatina / Influece of the LDL receptor and HMGCOA reductase variants in response to atorvastatin

Claudia Villazon-Gonzales 30 May 2008 (has links)
A influencia dos polimorfismos genéticos de HMGCoA redutase (HMGCR) e LDL receptor (LDLR) na resposta a atorvastatina (10 mg/dia/4semanas) foi avaliada em individuos hipercolesterolemicos (HC). Amostras de sangue foram coletadas de 153 HC e 182 normolipidemicos (NL) para determinações de lipideos séricos e extração de DNA. Polimorfismos de troca única (SNP) HMGCR (A11898T e T24558G) e LDLR (C16730T, C20001T, G26857A) foram detectados. por PCR-RFLP. Os alelos HMGCR 11898T e 24558G foram associados com menores triglicérides e VLDL-C séricos nos grupos NL e HC (p<0,05). Além disso, o SNP HM0CR T24558G foi relacionado com HDL-C e apoAI séricos aumentados em resposta a atorvastatina no grupo HC. O alelo LDLR 20001 C foi associado com maior apoAI sérica basal no grupo NL (p=O,034) e com melhor resposta de apoAI a atorvastatina no grupo HC (p=O,045). Foi observada relação entre o haplótipo heterozigoto LDLR 20001 C/16730T e redução significativa de apoB e aumento de apoAI no soro após o tratamento com atorvastatina (p<O,05). Em conclusão, os SNPs HMGCR A 11898T e T24558G influenciam os triglicérides e VLDL-C séricos independentemente do estado lipêmico e o haplótipo LDLR 20001 C/16730T está associado com melhor resposta de apoB e ApoAI séricos em resposta a atorvastatina. / Influence of the HMGCoA reductase (HMGCR) and LDL receptor (LDLR) gene polymorphisms on response to atorvastatin (10 mg/day/4weeks) was evaluated in hypercholesterolemic (HC) individuais. Blood samples were collected from 153 HC and 182 normolipidemic (NL) individuais for serum lipids determinations and DNA extratcion. Single nucleotide polymorphisms (SNP) HMGCR (A11898T e T24558G) and LDLR (C16730T, C20001T, G26857A) were detected by PCR-RFLP. HMGCR 11898T and 24558G alleles were associated with lower serum triglycerides and VLDL-C in NL and HC groups (p<0.05). Moreover, the SNP HMGCR T24558G was related to increased serum HDL-C and apoAI in response to atorvastatin in the HC group. The LDLR 20001 C allele was associated with higher basal serum apoAI in the NL group (p=0.034) and with better response of apoAI to atorvastatin in HC group (p=0.045). There was a relationship between heterozygote LDLR 20001 C/16730T haplotype and a significant reduction of apoB and increase in apoAI serum leveis after atorvastatin treatment (p<0.05). In conclusion, the HMGCR A11898T e T24558G SNPs influence serum triglycerides and VLDL-C independently of the lipemic status and LDLR 20001 C/16730T haplotype is associated with better serum apoB and Apol response to atorvastatin treatment.

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