PROTASIO LEMOS DA LUZ
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Cardio-Pneumologia, Faculdade de Medicina - Docente
49 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 49
- Translational Medicine and Implementation Science: How to Transform What We Know Into What We Do(2022) LUZ, Protasio Lemos da; LAURINDO, Francisco Rafael Martins
bookPart Estresse emocional e influências sobre o endotélio(2016) GAGLIANI, Mayra Luciana; HOJAIJ, Elaine Marques; LUZ, Protássio Lemos da- Translational Medicine and Implementation Science(2023) LUZ, Protasio Lemos da; PEGO-FERNANDES, Paulo Manuel
- Fulvio Pileggi: An Icon of Brazilian Cardiology(2021) LUZ, Protasio L. da; MADY, Charles; KALIL FILHO, Roberto; ROCHITTE, Carlos Eduardo
conferenceObject Lifestyle in wine drinkers and abstemious: the relationship of coronary lesions, calcium score and risk factors(2012) MOCHIDUKY, Roberta I.; ROCHITTE, Carlos E.; FAVARATO, Desiderio; ALBUQUERQUE, Cicero P.; GONSALVES, Cibele Regina L.; LAURINDO, Francisco Rafael M.; HUEB, Whady A.; LUZ, Protasio DaIntroduction: Red wine (RW) protects the cardiovascular system but objective evidence based on coronary status is lacking. Objectives: To assess the effects of chronic RW consumption upon coronary lesion burden. Methods: We performed Coronary Computed Tomographic Angiography in 204 male subjects whose mean age was 58.95±7.3 years and related lesions to risk factors (RF). One hundred were chronic RW drinkers who consumed at least one glass of RW wine/day, 4 –5 times/week, in the last 5 years and 104 were abstemious. Results: RW drinkers consumed 25.78 gr alcohol/day vs 0 among abstemious; they also ingested more calories (2118.50kcal vs 1776.21kcal daily; p<0.01) mainly from saturated fats (22.98 g vs16.51g; p<0.05) than abstemious. Abstemious, however, ingested more fibers (22.73 gr vs17.49 gr; p<0.05). There were no significant differences regarding age, smoking, BMI, arterial hypertension, diabetes, LDL and triglycerides. Psychological factors including anxiety, depression and stress also were similar. However, plasma glucose was lower (97.5±18.3 mg% vs105.9±32.0 mg %; p<0.06) and HDL was higher (46.9±10.9 mg% vs 39.5±9.0 mg%;p<0.01) in RW drinkers compared to abstemious. Calcium score was higher on RW drinkers than in abstemious(144.43±362.2 vs 122.05±370.26; p<0.004). Lesions were classified as absent or 50%. Considering LM, ADA, RCA and Cx in proximal, median and distal portions, plus 3 marginal, 3 diagonal and 2 terminal RCA branches, 3672 segments were included in the analysis. There were no significant differences regarding lesions severity between groups, except for more frequent zero lesions in proximal Cx (86.3 x 71.4 %; p<0.016). Conclusion: Despite higher caloric intake and saturated fats, RW drinkers have similar coronary lesion burden; calcium score, however, was higher compared to abstemious. Higher HDL cholesterol as cribed to RW drinking and lower plasma glucose may have protective roles.- Synergistic anti-inflammatory effect: simvastatin and pioglitazone reduce inflammatory markers of plasma and epicardial adipose tissue of coronary patients with metabolic syndrome(2014) GROSSO, Adriana Ferreira; OLIVEIRA, Sergio Ferreira de; HIGUCHI, Maria de Lourdes; FAVARATO, Desiderio; DALLAN, Luis Alberto de Oliveira; LUZ, Protasio Lemos daBackground: The inappropriate secretion of adipocytokines plays a critical role in chronic inflammatory states associated with obesity-linked type 2 diabetes and atherosclerosis. The pleiotropic actions of simvastatin and pioglitazone on epicardial adipose tissue (EAT) are unknown. This study assessed the anti-inflammatory actions of simvastatin and pioglitazone on EAT in patients with coronary artery disease (CAD) and metabolic syndrome (MS). Methods: A total of 73 patients with multivessel CAD who underwent elective bypass grafting were non-randomly allocated to one of four subgroups: Control (n = 17), simvastatin (20 mg/day, n = 20), pioglitazone (15 mg or 30 mg/day, n = 18), or simvastatin + pioglitazone (20 mg/day + 30 mg/day, respectively, n = 18); 20 valvar patients were also included. EAT samples were obtained during surgery. The infiltration of macrophages and lymphocytes and cytokines secretion were investigated using immunohistochemical staining and compared to plasma inflammatory biomarkers. Results: Simvastatin significantly reduced plasma interleukin-6, leptin, resistin and monocyte chemoattractant protein-1 (p < 0.001 for all); pioglitazone reduced interleukin-6, tumoral necrose factor-alpha, resistin and matrix metalloproteinase-9 (p < 0.001 for all). Simvastatin + pioglitazone treatment further reduced plasmatic variables, including interleukin-6, tumoral necrose factor-alpha, resistin, asymmetric dimethylarginine and metalloproteinase-9 vs. the control group (p < 0.001). Higher plasma adiponectin and lower high sensitivity C-reactive protein concentrations were found simultaneously in the combined treatment group. A positive correlation between the mean percentage systemic and tissue cytokines was observed after treatments. T-and B-lymphocytes and macrophages clusters were observed in the fat fragments of patients treated with simvastatin for the first time. Conclusions: Pioglitazone, simvastatin or combination treatment substantially reduced EAT and plasma inflammatory markers in CAD and MS patients. These tissue effects may contribute to the control of coronary atherosclerosis progression.
- Red wine and equivalent oral pharmacological doses of resveratrol delay vascular aging but do not extend life span in rats(2012) LUZ, Protasio L. da; TANAKA, Leonardo; BRUM, Patricia Chakur; DOURADO, Paulo Magno Martins; FAVARATO, Desiderio; KRIEGER, Jose Eduardo; LAURINDO, Francisco Rafael M.Objective: To investigate, in male Wistar rats, the effects of long-term moderate red wine (RW) consumption (equivalent to similar to 0.15 mg% resveratrol RS), or RS in low (L, 0.15 mg%) or high (H, 400 mg%) doses in chow. Background: Both RW and RS exhibit cardioprotection. RS extends lifespan in obese rats. It is unclear whether RW consumption or low-dose RS delay vascular aging and prolong life span in the absence of overt risk factors. Methods: Endpoints were aerobic performance, exercise capacity, aging biomarkers (p53,p16,p21, telomere length and telomerase activity in aortic homogenates), vascular reactivity. Data were compared with controls (C) given regular chow. Results: Expressions of p53 decreased similar to 50% similar to with RW and LRS (p < 0.05 vs. C), p16 by similar to 29% with RW (p < 0.05 vs. C) and p21 was unaltered. RW and LRS increased telomere length >6.5-fold vs. C, and telomerase activity increased with LRS and HRS. All treatments increased aerobic capacity (C 32.5 +/- 1.2, RW 38.7 + 1.7, LRS 38.5 + 1.6, HRS 38.3 + 1.8 mlO2 min(-1) kg(-1)), and RW or LRS also improved time of exercise tolerance vs. C (p < 0.05). Endothelium-dependent relaxation improved with all treatments vs. C. Life span, however, was unaltered with each treatment vs. C = 673 +/- 30 days, p = NS. Conclusions: RW and LRS can preserve vascular function indexes in normal rats, although not extending life span. These effects were translated into better aerobic performance and exercise capacity.
conferenceObject Hypercholesterolemic diet worst left ventricular function evaluated by echocardiography in rats subjected to an experimental infarct model(2012) DOURADO, Paulo M.; TSUTSUI, Jeane M.; CASELLA FILHO, Antonio; LANDIM, Mauricio B.; GALVAO, Tatiana F.; AIELLO, Vera D.; LUZ, Protasio Da; MATHIAS JR., Wilson; CHAGAS, Antonio C.Introduction: A better comprehension of the hypercholesterolemic diet role in the set of acute myocardial infarct is fundamental. Objectives: Evaluation of the role of hypercholesterolemic diet in the determination of the hemodynamics patterns by echocardiography. Methods: Sixty three anesthetized rats were subjected to occlusion of the left anterior descending (LAD) coronary artery and divided in six groups: G1–just normal diet (ND); G2–ND and treatment with rosuvastatim for 30 days began after infarct and G3–ND and 30 days previously to infarct treated with rosuvastatim until 30 days after it; G4 –just hypercholesterolemic diet (HD); G5–HD and treatment with rosuvastatim for 30 days began after infarct and G6 –HD and 30 days previously to infarct treated with rosuvastatim until 30 days after it. Echocardiography was performed using bidimensional image in the paraesternal long axis. The planimetry of the left ventricle areas in the end of the diastole (LVEDA) and systole (LVESA) were realized before the infarct (pre) and 30 days after the infarct (post) . A p value<0.05 was considered significant. Conclusion: The hypercholesterolemic diet worst the hemodynamics parameters–LVEDA and LVESA - in comparison with the normocholesterolemic group treated with rosuvastatim.- Mental Health in Cardiologists: A Real Concern(2023) LUZ, Protasio Lemos da
- Distance Psychotherapy – New Reality(2015) LUZ, Protásio L. da; GAGLIANI, Mayra L.; ROMANO, Bellkiss W.