EDER CARLOS ROCHA QUINTAO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Clínica Médica, Faculdade de Medicina - Docente
LIM/10 - Laboratório de Lípides, Hospital das Clínicas, Faculdade de Medicina
LIM/10 - Laboratório de Lípides, Hospital das Clínicas, Faculdade de Medicina
14 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 14
conferenceObject EFFECTS OF LIPC VARIANTS (RS1800558 AND RS2070895) ON HDL-C, HDL SIZE AND HEPATIC LIPASE ACTIVITY IN A REPRESENTATIVE BRAZILIAN POPULATION(2014) SCHERRER, D. Z.; ZAGO, V. H. S.; VIEIRA, I. C.; PARRA, E. S.; PANZOLDO, N. B.; VIRGINIO, V. W. M.; ALEXANDRE, F.; QUINTAO, E. C. R.; FARIA, E. C. deconferenceObject LIPOPROTEINS AND LIPID METABOLISM: HDL. AEROBIC EXERCISE TRAINING DOES NOT SYSTEMATICALLY AFFECT MACROPHAGE GENE EXPRESSION INVOLVED IN REVERSE CHOLESTEROL TRANSPORT AND CHOLESTEROL EFFLUX IN CETP TRANSGENIC MICE(2016) PINTO, P. R.; SILVA, K. S.; GOMES, D. J.; MACHADO-LIMA, A.; IBORRA, R. T.; FERREIRA, G. S.; QUINTAO, E. C. R.; NAKANDAKARE, E. R.; MACHADO, U. F.; CORREA-GIANNELLA, M. L. C.; CATANOZI, S.; PASSARELLI, M.conferenceObject CHOLESTEROL CONTENT AND SYNTHESIS IN THE BRAIN OF APOE KNOCKOUT MICE(2018) NUNES, V. Sutti; CAZITA, P. Miralda; CATANOZI, S.; NAKANDAKARE, E. R.; QUINTAO, E. C. R.- Omega-6 polyunsaturated fatty acids prevent atherosclerosis development in LDLr-KO mice, in spite of displaying a pro-inflammatory profile similar to trans fatty acids (vol 224, pg 66, 2012)(2013) MACHADO, R. M.; NAKANDAKARE, E. R.; QUINTAO, E. C.; CAZITA, P. M.; KOIKE, M. K.; NUNES, V. S.; FERREIRA, F. D.; AFONSO, M. S.; BOMBO, R. P.; MACHADO-LIMA, A.; SORIANO, F. G.; CATANOZI, S.; LOTTENBERG, A. M.
- Omega-6 polyunsaturated fatty acids prevent atherosclerosis development in LDLr-KO mice, in spite of displaying a pro-inflammatory profile similar to trans fatty acids(2012) MACHADO, Roberta M.; NAKANDAKARE, Edna R.; QUINTAO, Eder C. R.; CAZITA, Patricia M.; KOIKE, Marcia K.; NUNES, Valeria S.; FERREIRA, Fabiana D.; AFONSO, Milessa S.; BOMBO, Renata P. A.; MACHADO-LIMA, Adriana; SORIANO, Francisco G.; CATANOZI, Sergio; LOTTENBERG, Ana MariaThe development of atherosclerosis and the inflammatory response were investigated in LDLr-KO mice on three high-fat diets (40% energy as fat) for 16 weeks: trans (TRANS), saturated (SAFA) or omega-6 polyunsaturated (PUFA) fats. The following parameters were measured: plasma lipids, aortic root total cholesterol (TC), lesion area (Oil Red-O), ABCA1 content and macrophage infiltration (immunohistochemistry), collagen content (Picrosirius-red) and co-localization of ABCA1 and macrophage (confocal microscopy) besides the plasma inflammatory markers (IL-6, TNF-alpha) and the macrophage inflammatory response to lipopolysaccharide from Escherichia coli (LPS). As expected, plasma TC and TG concentrations were lower on the PUFA diet than on TRANS or SAFA diets. Aortic intima macrophage infiltration, ABCA1 content, and lesion area on PUFA group were lower compared to TRANS and SAFA groups. Macrophages and ABCA1 markers did not co-localize in the atherosclerotic plaque, suggesting that different cell types were responsible for the ABCA1 expression in plaques. Compared to PUFA, TRANS and SAFA presented higher collagen content and necrotic cores in atherosclerotic plaques. In the artery wall, TC was lower on PUFA compared to TRANS group; free cholesterol was lower on PUFA compared to TRANS and SAFA; cholesteryl ester concentration did not vary amongst the groups. Plasma TNF-alpha concentration on PUFA and TRANS-fed mice was higher compared to SAFA. No difference was observed in IL-6 concentration amongst groups. Regarding the macrophage inflammatory response to LPS, TRANS and PUFA presented higher culture medium concentrations of IL-6 and TNF-alpha as compared to SAFA. The PUFA group showed the lowest amount of the anti-inflammatory marker IL-10 compared to TRANS and SAFA groups. In conclusion, PUFA intake prevented atherogenesis, even in a pro-inflammatory condition.
conferenceObject Plasma 27-hydroxycholesterol/cholesterol Ratio is Increased in Low High Density Lipoprotein-Cholesterol Healthy Subjects(2012) NUNES, Valeria S.; LEANCA, Camila C.; PANZOLDO, Natalia B.; PARRA, Eliane; ZAGO, Vanessa; CAZITA, Patricia M.; NAKANDAKARE, Edna R.; FARIA, Eliana C. de; QUINTAO, Eder C.- Dietary phytosterol does not accumulate in the arterial wall and prevents atherosclerosis of LDLr-KO mice(2013) BOMBO, Renata P. A.; AFONSO, Milessa S.; MACHADO, Roberta M.; LAVRADOR, Maria Silvia Ferrari; NUNES, Valeria S.; QUINTAO, Eder R.; KOIKE, Marcia; CATANOZI, Sergio; LIN, Chin Jia; NAKANDAKARE, Edna R.; LOTTENBERG, Ana MariaScope: There have been conflicting reports on the usefulness of phytosterols (PS) in preventing atherosclerosis. We evaluated the effects of dietary PS supplementation in LDLr-KO male mice on the plasma and aorta sterol concentrations and on atherosclerotic lesion development. Methods and results: Mice were fed a high fat diet (40% of energy) supplemented with or without PS (2% w/w, n = 10). Plasma and arterial wall cholesterol and PS concentrations, lesion area, macrophage infiltration, and mRNA expression from LOX-1, CD36, ABCA1 and ABCG1 in peritoneal macrophages were measured. After 16 weeks, the plasma cholesterol concentration in PS mice was lower than that in the controls (p = 0.02) and in the arterial wall (p = 0.03). Plasma PS concentrations were higher in PS-fed animals than in controls (p < 0.0001); however, the arterial wall PS concentration did not differ between groups. The atherosclerotic lesion area in the PS group (n = 5) was smaller than that in controls (p = 0.0062) and the macrophage area (p = 0.0007). PS correlates negatively with arterial lipid content and macrophage (r = -0.76; p < 0.05). PS supplementation induced lower ABCG1 mRNA expression (p < 0.05). Conclusions: Despite inducing an increase in PS plasma concentration, PS supplementation is not associated with its accumulation in the arterial wall and prevents atherosclerotic lesion development.
conferenceObject ABCA1, ABCG1 AND SCARB1 GENE EXPRESSION ANALYSES IN ASYMPTOMATIC SUBJECTS WITH HIGH AND LOW HDL-C(2014) ZAGO, V. H. S.; SCHERRER, D. Z.; PARRA, E. S.; PANZOLDO, N. B.; VENDRAME, F.; QUINTAO, E. C. R.; FARIA, E. C. de- Letter by Quintao and Cazita Regarding Article, ""Inhibition of Cholesteryl Ester Transfer Protein Preserves High-Density Lipoprotein Cholesterol and Improves Survival in Sepsis""(2021) QUINTAO, Eder C. R.; CAZITA, Patricia M.
conferenceObject LOW-SALT DIET INDUCES ATHEROSCLEROSIS INDEPENDENT OF LOWERING BLOOD PRESSURE IN HYPERTENSIVE MICE(2016) CATANOZI, S.; FUSCO, F.; GOMES, D.; BISPO, K.; TOLEDO, V.; BARBEIRO, D.; CAPELOZZI, V.; FURUKAWA, L.; VELOSA, A. P.; TEODORO, W.; HEIMANN, J.; QUINTAO, E.; PASSARELLI, M.; NAKANDAKARE, E.