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Nanotechnology for the treatment of deep endometriosis: uptake of lipid core nanoparticles by LDL receptors in endometriotic foci
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Bedin, Alessandra

; Maranhão, Raul C.

; Tavares, Elaine R.

; Carvalho, Priscila O.

; Baracat, Edmund C.

; Podgaec, Sérgio

Clinics

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2019, Volume 74 elocation e989

Resumo: En | Texto: En | PDF: En

OBJECTIVE: Rapidly dividing cells in multiple types of cancer and inflammatory diseases undergo high low density lipoprotein (LDL) uptake for membrane synthesis, and coupling an LDL-like nanoemulsion, containing lipid nanoparticles (LDE) to a chemotherapeutic agent efficiently targets these cells without significant systemic effects. This was a prospective exploratory study that evaluated the uptake of a radioactively labeled LDE emulsion by receptors of endometriotic foci and the capacity of the LDE for cellular internalization. METHODS: The lipid profile of each patient was determined before surgery, and labeled LDE were injected into fourteen patients with intestinal or nonintestinal endometriosis. The radioactivity of each tissue sample (intestinal endometriosis, nonintestinal endometriosis, healthy peritoneum, or topical endometrium) was measured. RESULTS: The group with intestinal endometriosis presented higher levels of plasma LDL but lower LDE uptake by foci than the nonintestinal group, suggesting less cell division and more fibrosis. The uptake of LDE was highest in the topical endometrium, followed by the healthy peritoneum, and lowest in the endometriotic lesion. Since the endometriotic foci showed significant LDE uptake, there was likely increased consumption of LDL by these cells, similar to cells in cancers and inflammatory diseases. Plasma cholesterol levels had no influence on LDE uptake, which showed that the direct delivery of the nanoemulsion to target tissues was independent of serum lipoproteins. There were no significant differences in the parameters (p>0.01) because of the small sample size, but the findings were similar to those of previous studies. CONCLUSION: Nanotechnology is a promising therapeutic option for surgery and hormonal blockage for deep endometriosis, with a lower complication rate and no systemic side effects.

https://doi.org/10.6061/clinics/2019/e989 622 downloads

Treatment of patients with aortic atherosclerotic disease with paclitaxel-associated lipid nanoparticles
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Shiozaki, Afonso A.

; Senra, Tiago

; Morikawa, Aleksandra T.

; Deus, Débora F.

; Paladino-Filho, Antonio T.

; Pinto, Ibraim M.F.

; Maranhão, Raul C.

Clinics

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Ago 2016, Volume 71 Nº 8 Páginas 435 - 439

Resumo: En | Texto: En | PDF: En

OBJECTIVE: The toxicity of anti-cancer chemotherapeutic agents can be reduced by associating these compounds, such as the anti-proliferative agent paclitaxel, with a cholesterol-rich nanoemulsion (LDE) that mimics the lipid composition of low-density lipoprotein (LDL). When injected into circulation, the LDE concentrates the carried drugs in neoplastic tissues and atherosclerotic lesions. In rabbits, atherosclerotic lesion size was reduced by 65% following LDE-paclitaxel treatment. The current study aimed to test the effectiveness of LDE-paclitaxel on inpatients with aortic atherosclerosis. METHODS: This study tested a 175 mg/m2 body surface area dose of LDE-paclitaxel (intravenous administration, 3/3 weeks for 6 cycles) in patients with aortic atherosclerosis who were aged between 69 and 86 yrs. A control group of 9 untreated patients with aortic atherosclerosis (72-83 yrs) was also observed. RESULTS: The LDE-paclitaxel treatment elicited no important clinical or laboratory toxicities. Images were acquired via multiple detector computer tomography angiography (64-slice scanner) before treatment and at 1-2 months after treatment. The images showed that the mean plaque volume in the aortic artery wall was reduced in 4 of the 8 patients, while in 3 patients it remained unchanged and in one patient it increased. In the control group, images were acquired twice with an interval of 6-8 months. None of the patients in this group exhibited a reduction in plaque volume; in contrast, the plaque volume increased in three patients and remained stable in four patients. During the study period, one death unrelated to the treatment occurred in the LDE-paclitaxel group and one death occurred in the control group. CONCLUSION: Treatment with LDE-paclitaxel was tolerated by patients with cardiovascular disease and showed the potential to reduce atherosclerotic lesion size.

https://doi.org/10.6061/clinics/2016(08)05 1127 downloads

Anti-inflammatory effects of intravenous methotrexate associated with lipid nanoemulsions on antigen-induced arthritis
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Mello, Suzana B.V.

; Tavares, Elaine R.

; Guido, Maria Carolina

; Bonfá, Eloisa

; Maranhão, Raul C.

Clinics

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Jan 2016, Volume 71 Nº 1 Páginas 54 - 58

Resumo: En | Texto: En | PDF: En

OBJECTIVE: To test the hypothesis that intravenous use of methotrexate associated with lipid nanoemulsions can achieve superior anti-inflammatory effects in the joints of rabbits with antigen-induced arthritis compared with commercial methotrexate. METHODS: Arthritis was induced in New Zealand rabbits sensitized with methylated bovine serum albumin and subsequently intra-articularly injected with the antigen. A nanoemulsion of methotrexate labeled with 3H-cholesteryl ether (4 mg/kg methotrexate) was then intravenously injected into four rabbits to determine the plasma decaying curves and the biodistribution of the methotrexate nanoemulsion by radioactive counting. Additionally, the pharmacokinetics of the methotrexate nanoemulsion were determined by high-pressure liquid chromatography. Twenty-four hours after arthritis induction, the animals were allocated into three groups, with intravenous injection with saline solution (n=9), methotrexate nanoemulsion (0.5 µmol/kg methotrexate, n=7), or commercial methotrexate (0.5 µmol/kg, n=4). The rabbits were sacrificed 24 h afterward. Synovial fluid was then collected for protein leakage and cell content analyses and synovial membranes were collected for histopathological analysis. RESULTS: The methotrexate nanoemulsion was taken up mainly by the liver and the uptake by arthritic joints was two-fold greater than that by control joints. The methotrexate nanoemulsion treatment reduced leukocyte influx into the synovial fluid by nearly 65%; in particular, mononuclear and polymorphonuclear cells were reduced by 47 and 72%, respectively. In contrast, cell influx was unaffected following treatment with commercial methotrexate. Protein leakage into the arthritic knees of the rabbits was also more limited following methotrexate nanoemulsion treatment than following commercial methotrexate treatment. CONCLUSIONS: The intravenous methotrexate nanoemulsion showed anti-inflammatory effects on the synovia of arthritic joints that were clearly superior to the effects of a commercial methotrexate preparation. This result is conceivably due to greater methotrexate uptake by the joints when the drug is associated with a nanoemulsion.

https://doi.org/10.6061/clinics/2016(01)09 1714 downloads

Inflammation and circulating endothelial progenitor cells in patients with coronary artery disease and residual platelet reactivity
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Pesaro, Antonio Eduardo P.

; Serrano Jr, Carlos V.

; Katz, Marcelo

; Campos, Alexandre H.

; Lopes, Renato D.

; Marti, Luciana C.

; Martins, Herlon S.

; Sunahara, Rodrigo S.

; Maranhão, Raul C.

; Nicolau, José C.

Clinics

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Set 2012, Volume 67 Nº 9 Páginas 1117 - 1121

Resumo: En | Texto: En | PDF: En

https://doi.org/10.6061/clinics/2012(09)21 1436 downloads

Plasma kinetics of an LDL-like nanoemulsion and lipid transfer to HDL in subjects with glucose intolerance
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Bertato, Marina P

; Oliveira, Carolina P.

; Wajchenberg, Bernardo L.

; Lerario, Antonio C.

; Maranhão, Raul C.

Clinics

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2012, Volume 67 Nº 4 Páginas 347 - 353

Resumo: En | Texto: En | PDF: En

OBJECTIVE: Glucose intolerance is frequently associated with an altered plasma lipid profile and increased cardiovascular disease risk. Nonetheless, lipid metabolism is scarcely studied in normolipidemic glucose-intolerant patients. The aim of this study was to investigate whether important lipid metabolic parameters, such as the kinetics of LDL free and esterified cholesterol and the transfer of lipids to HDL, are altered in glucose-intolerant patients with normal plasma lipids. METHODS: Fourteen glucose-intolerant patients and 15 control patients were studied; none of the patients had cardiovascular disease manifestations, and they were paired for age, sex, race and co-morbidities. A nanoemulsion resembling a LDL lipid composition (LDE) labeled with 14C-cholesteryl ester and ³H-free cholesterol was intravenously injected, and blood samples were collected over a 24-h period to determine the fractional clearance rate of the labels by compartmental analysis. The transfer of free and esterified cholesterol, triglycerides and phospholipids from the LDE to HDL was measured by the incubation of the LDE with plasma and radioactivity counting of the supernatant after chemical precipitation of non-HDL fractions. RESULTS: The levels of LDL, non-HDL and HDL cholesterol, triglycerides, apo A1 and apo B were equal in both groups. The 14C-esterified cholesterol fractional clearance rate was not different between glucose-intolerant and control patients, but the ³H-free-cholesterol fractional clearance rate was greater in glucose-intolerant patients than in control patients. The lipid transfer to HDL was equal in both groups. CONCLUSION: In these glucose-intolerant patients with normal plasma lipids, a faster removal of LDE free cholesterol was the only lipid metabolic alteration detected in our study. This finding suggests that the dissociation of free cholesterol from lipoprotein particles occurs in normolipidemic glucose intolerance and may participate in atherogenic signaling.

https://doi.org/10.6061/clinics/2012(04)08 1777 downloads

Simultaneous transfer of cholesterol, triglycerides, and phospholipids to high-density lipoprotein in aging subjects with or without coronary artery disease
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Azevedo, Carolina H. M

; Wajngarten, Maurício

; Prete, Ana C. Lo

; Diament, Jayme

; Maranhão, Raul C

Clinics

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2011, Volume 66 Nº 9 Páginas 1543 - 1548

Resumo: En | Texto: En | PDF: En

OBJECTIVE: To verify whether the capacity of high-density lipoprotein (HDL) to simultaneously receive nonesterified cholesterol, triglycerides, cholesteryl esters, and phospholipids changes with aging and the presence of coronary artery disease. DESIGN: Cross-sectional study with biochemical analyses. SUBJECTS: Eleven elderly patients with coronary artery disease (74±5 years) were compared with the following groups of non-coronary artery disease subjects (referred to as "healthy"): 25 young (25±5 years), 25 middle-aged (42± years), and 25 elderly subjects (75±8 years). METHODS: Plasma samples were incubated with a nanoemulsion labeled with radioactive lipids; the transfer of the lipids from the nanoemulsion to the HDL was measured in chemically precipitated HDL. HDL size and paraoxonase-1 activity were also determined. RESULTS: The transfer of cholesteryl esters and phospholipids to high-density lipoprotein was significantly greater (p<0.001) in healthy elderly subjects than in the middle-aged and younger subjects. Non-esterified cholesterol and triglyceride transfer was not different among these three groups. The HDL size was significantly greater (p<0.001) in healthy elderly subjects than in the middle-aged and younger subjects. The paraoxonase-1 activity was similar among the groups. Compared with healthy elderly subjects, coronary artery disease elderly subjects had significantly less (p<0.05) transfer of non-esterified cholesterol, triglycerides, and cholesteryl esters to the HDL and a significantly smaller (p<0.05) HDL size. CONCLUSION: Because lipid transfer is enhanced in healthy elderly subjects but not in those with coronary artery disease, increasing lipid transfer to HDL may be a protective mechanism against the disease.

1798 downloads

Synthetic nanoemulsion resembling a protein-free model of 7-ketocholesterol containing low density lipoprotein: In vitro and in vivo studies
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Favero, Giovani M

; Maranhão, Raul C

; Maria, Durvanei A

; Levy, Débora

; Bydlowski, Sérgio P

Biological Research

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2010, Volume 43 Nº 4 Páginas 439 - 444

Resumo: En | Texto: En | PDF: En

7-ketocholesterol (7-KC) differs from cholesterol by a functional ketone group at C7. It is an oxygenated cholesterol derivative (oxysterol), commonly present in oxidized low-density lipoprotein (LDL). Oxysterols are generated and participate in several physiologic and pathophysiologic processes. For instance, the cytotoxic effects of oxidized LDL have been widely attributed to bioactive compounds like oxysterols. The toxicity is in part due to 7-KC. Here we aimed to demonstrate the possibility of incorporating 7-KC into the synthetic nanoemulsion LDE, which resembles LDL in composition and behavior. This would provide a suitable artificial particle resembling LDL to study 7-KC metabolism. We were able to incorpórate 7-KC in several amounts into LDE. The incorporation was evaluated and confirmed by several methods, including gel filtration chromatography, using radiolabeled lipids. The incorporation did not change the main lipid composition characteristics of the new nanoparticle. Particle sizes were also evaluated and did not differ from LDE. In vivo studies were performed by injecting the nanoemulsion into mice. The plasma kinetics and the targeted organs were the same as described for LDE. Therefore, 7-KC-LDE maintains composition, size and some functional characteristics of LDE and could be used in experiments dealing with 7-ketocholesterol metabolism in lipoproteins.

1968 downloads

IV Diretriz Brasileira sobre Dislipidemias e Prevenção da Aterosclerose: Departamento de Aterosclerose da Sociedade Brasileira de Cardiologia
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Sposito, Andrei C.

; Caramelli, Bruno

; Fonseca, Francisco A. H.

; Bertolami, Marcelo C.

; Afiune Neto, Abrahão

; Souza, Aguinaldo David

; Lottenberg, Ana Maria Pitta

; Chacra, Ana Paula

; Faludi, André A.

; Loures-Vale, Andréia A.

; Carvalho, Antônio Carlos

; Duncan, Bruce

; Gelonese, Bruno

; Polanczyk, Carisi

; Rodrigues Sobrinho, Carlos Roberto M.

; Scherr, Carlos

; Karla, Cynthia

; Armaganijan, Dikran

; Moriguchi, Emílio

; Saraiva, Francisco

; Pichetti, Geraldo

; Xavier, Hermes Toros

; Chaves, Hilton

; Borges, Jairo Lins

; Diament, Jayme

; Guimarães, Jorge Ilha

; Nicolau, José Carlos

; Santos, José Ernesto dos

; Lima, José Jayme Galvão de

; Vieira, José Luiz

; Novazzi, José Paulo

; Faria Neto, José Rocha

; Torres, Kerginaldo P.

; Pinto, Leonor de Almeida

; Bricarello, Liliana

; Bodanese, Luiz Carlos

; Introcaso, Luiz

; Malachias, Marcus Vinícius Bolívar

; Izar, Maria Cristina

; Magalhães, Maria Eliane C.

; Schmidt, Maria Inês

; Scartezini, Mariléia

; Nobre, Moacir

; Foppa, Murilo

; Forti, Neusa A.

; Berwanger, Otávio

; Gebara, Otávio C. E.

; Coelho, Otávio Rizzi

; Maranhão, Raul C.

; Santos Fº, Raul Dias dos

; Costa, Rosana Perim

; Barreto, Sandhi

; Kaiser, Sérgio

; Ihara, Silvia

; Carvalho, Tales de

; Martinez, Tania Leme Rocha

; Relvas, Waldir Gabriel Miranda

; Salgado, Wilson

Arquivos Brasileiros de Cardiologia

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Abr 2007, Volume 88 Páginas 2 - 19

Resumo: Pt | Texto: Pt | PDF: Pt

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Polimorfismo S447X da lipase lipoprotéica: influência sobre a incidência de doença arterial coronariana prematura e sobre os lípides plasmáticos
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Almeida, Kátia A.

; Strunz, Célia M. C.

; Maranhão, Raul C.

; Mansur, Antonio P.

Arquivos Brasileiros de Cardiologia

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Mar 2007, Volume 88 Nº 3 Páginas 297 - 303

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

OBJETIVO: O objetivo deste estudo foi avaliar o efeito do polimorfismo S447X sobre os lípides plasmáticos em pacientes com doença arterial coronariana (DAC) prematura. MÉTODOS: Os lípides plasmáticos e a genotipagem foram determinados em 2 grupos: 313 pacientes com DAC prematura (<55 anos) e 150 controles sem DAC. RESULTADOS: A freqüência do polimorfismo S447X foi de 18% nos pacientes com DAC e de 23% no grupo controle. O polimorfismo S447X da lipase lipoprotéica está relacionado com diminuição das concentrações plasmática de triglicérides nos pacientes do sexo masculino com DAC, não havendo essa relação no sexo feminino. CONCLUSÃO: A presença do polimorfismo S447X da lípase lipoprotéica não foi associada à incidência de DAC.

OBJECTIVE: The objective of this study was to evaluate the effect of polymorphism S447X on plasma lipids of patients with premature coronary artery disease (CAD). METHODS: Plasma lipids and genotypes were determined in 2 groups: 313 patients with premature CAD (<55 years of age) and 150 controls without CAD. RESULTS: Frequency of the S447X polymorphism was 18% in patients with CAD and 23% in the control group. The S447X polymorphism of lipoprotein lipase is related to a decrease in plasma triglyceride concentrations in male patients with CAD, but this correlation is not observed in female patients. CONCLUSION: The presence of the S447X lipoprotein lipase polymorphism was not associated with the incidence of CAD.

12992 downloads

10.

Concentração sérica de lípides e apolipoproteína B em recém-nascidos
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Donegá, Sirlei

; Oba, Jane

; Maranhão, Raul C.

Arquivos Brasileiros de Cardiologia

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Jun 2006, Volume 86 Nº 6 Páginas 419 - 424

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

OBJETIVO: Determinar numa população de recém-nascidos de uma cidade do sul do Brasil as concentrações de lípides séricos e apolipoproteína B (apo-B) em neonatos normais a termo e pré-termo, analisando-se a influência da idade gestacional e do peso ao nascimento. MÉTODOS: Foram estudados 212 neonatos de ambos os sexos, deles, 142 a termo (>37 semanas de gestação) e 70 neonatos pré-termo (<37 semanas). Os neonatos a termo e pré-termo foram classificados pelo peso de nascimento em pequeno para a idade gestacional ou adequado para a idade gestacional. Utilizou-se o sangue do cordão umbilical para as análises bioquímicas. RESULTADOS: Os valores de colesterol total, LDL-C, HDL-C e de apo-B foram maiores nos neonatos pré-termo (79±34, 26±6, 45±15 e 36±14 mg/dL, respectivamente) do que nos neonatos a termo (58±19, 20±10, 31±14 e 28±7 mg/dL, respectivamente; p < 0,0001). Inversamente, os valores de triglicérides foram menores nos neonatos pré-termo (36±14 mg/dL) do que nos neonatos a termo (43±25 mg/dL; p < 0,0018). O sexo e o fato de o neonato ser pequeno ou adequado para a idade gestacional não influenciaram os valores de colesterol total e frações, de triglicérides e apo-B. CONCLUSÃO: As concentrações de lípides plasmáticos e de apo-B dos neonatos da população estudada são semelhantes às dos neonatos de outros países de continentes diversos reportados na literatura e, como esperado, é acentuadamente menor do que os valores referidos na literatura para as de crianças acima de dois anos. A maturidade fetal influencia a concentração de lípides dos neonatos, mas o peso de nascimento não tem efeito nesses parâmetros.

OBJECTIVE: To determine the concentrations of serum lipids and apolipoprotein B (apo-B) in a population of normal full-term and preterm newborns in a city in Southern Brazil, and assess the impact of gestational age and birth weight on these values. METHODS: Two hundred and twelve newborns of both genders were studied, 142 of whom were full-term (>37 weeks of gestation) and 70 preterm (<37 weeks of gestation). According to their birth weights, the full-term and preterm newborns were classified as small for gestational age or appropriate for gestational age. Umbilical cord blood was collected for biochemical analysis. RESULTS: The total cholesterol, LDL-C, HDL-C and apo-B values were higher in preterm newborns (79±34, 26±6, 45±15 and 36±14 mg/dL, respectively ) than in full-term newborns (58±19, 20±10, 31±14 and 28±7 mg/dL, respectively; p < 0.0001). Inversely, triglyceride values were lower in preterm newborns (36±14 mg/dL) than in full-term newborns (43±25 mg/dL; p < 0.0018). Gender and size at birth did not have any impact on the values of total cholesterol and fractions, triglycerides, and apo-B. CONCLUSION: Plasma concentrations of lipids and apo-B in the population of newborns studied are similar to those in newborns from other countries and continents reported in medical literature and, as expected, are markedly lower than the values mentioned in literature for infants over two years of age. Fetal maturity has an impact on the concentration of lipids in newborns, but birth weight does not have any effect on these parameters.

4707 downloads

11.

Ausência de efeito do captopril no metabolismo de uma emulsão lipídica artificial semelhante aos quilomícrons em pacientes hipertensos e hipercolesterolêmicos
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Alves, Renato J.

; Diament, Jayme

; Amâncio, Rosângela F.

; Forti, Neusa

; Maranhão, Raul C.

Arquivos Brasileiros de Cardiologia

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Dez 2004, Volume 83 Nº 6 Páginas 508 - 511

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

OBJETIVO: Avaliar o efeito do captopril, sobre o metabolismo dos quilomícrons e de seus remanescentes e as possíveis alterações nas concentrações dos lípides plasmáticos em hipertensos e hipercolesterolêmicos. MÉTODOS: O metabolismo dos quilomícrons foi testado pelo método da emulsão lipídica artificial de quilomícrons marcada com 3H-oleato de colesterol, foi injetada intravenosamente em 10 pacientes com hipertensão arterial leve-moderada antes e após 45 dias de tratamento com captopril (50 mg/dia). Após injeção, foram coletadas amostras de sangue durante 60min em intervalos de tempo pré-estabelecidos para determinar a curva de decaimento e a taxa fracional de remoção (TFR em min-1), bem como o tempo de residência no plasma, da emulsão lipídica artificial, por análise compartimental. As concentrações dos lípides do plasma também foram avaliadas antes e após o tratamento. RESULTADOS: A taxa fracional de remoção (em min-1) da emulsão lipídica antes e após o tratamento com captopril (0,012±0,003 e 0,011±0,003, respectivamente; p=0,85, n.s.) ou o tempo de permanência da emulsão no plasma (83,3±20,8 e 90,9± 22,5 min, n.s.) não se alteraram, mas os níveis de colesterol total e de LDL-c reduziram-se em 7% e 10% respectivamente (p=0,02). As concentrações de HDL-c, triglicérides, Lp(a) e apolipoproteínas AI e B não se modificaram. CONCLUSÃO: O tratamento com captopril, avaliado pelo método da emulsão lipídica artificial, não provoca alterações deletérias no metabolismo dos quilomícrons e seus remanescentes.

OBJECTIVE: To assess the effect of captopril, an angiotensin-converting enzyme inhibitor, on the metabolism of chylomicrons and their remnants and the possible alterations in the concentrations of plasma lipids caused by the drug in hypertensive hypercholesterolemic individuals. METHODS: The metabolism of chylomicrons was tested with the method of artificial lipid emulsion of chylomicrons labeled with ³H-cholesteryl oleate. The emulsion was injected intravenously in 10 patients with mild-moderate arterial hypertension before and 45 days after treatment with captopril (50 mg/day). After injection, blood samples were collected during 60 minutes at pre-established time intervals for determining the decay curve, the fractional catabolic rate (FCR in min-1), and the plasma residence time of the artificial lipid emulsion by analyzing different compartments. The plasma concentrations of the lipids were also assessed before and after treatment. RESULTS: The fractional catabolic rate (min-1) of the lipid emulsion before and after treatment with captopril (0.012±0.003 and 0.011±0.003, respectively; p=0.85, n.s.) and the plasma residence time of the emulsion (83.3±20.8 and 90.9±22.5 min, n.s.) did not change, but the total cholesterol and LDL-C levels decreased by 7% and 10%, respectively (p=0.02). The concentrations of HDL-C, triglycerides, Lp(a), and apolipoproteins AI and B did not change. CONCLUSION: Treatment with captopril, evaluated with the artificial lipid emulsion method, does not cause deleterious changes in the metabolism of chylomicrons and their remnants.

6547 downloads

12.

Comparação entre homens e mulheres hipercolesterolêmicos de alto risco de desenvolvimento de aterosclerose. Estudo dos fatores de risco e da resposta ao tratamento com pravastatina
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Santos, Raul D.

; Maranhão, Raul C.

Arquivos Brasileiros de Cardiologia

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Jun 1998, Volume 70 Nº 6 Páginas 383 - 387

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

OBJETIVO: Comparar, entre homens e mulheres hipercolesterolêmicos, a prevalência dos fatores de risco e a resposta ao tratamento com pravastatina. MÉTODOS: Avaliados 486 homens e 368 mulheres, sendo 230 homens e 187 mulheres, que receberam 10mg de pravastatina por 3 meses. RESULTADOS: Houve diferença respectivamente entre mulheres e homens em relação a: hipertensão arterial (45,5% vs 40,8%; p=0,0012), hipertrofia ventricular esquerda (33,0% vs 22,0%; p=0,0041), sedentarismo (94,8% vs 87,8%; p=0,0005), tabagismo (43,0% vs 61,8%; p<0,0001), escores de Framingham (20,0±7,1 vs 16,0±7,6 p<0,001), HDL-C (43,0±11,0 vs 38,0±9,0mg/dL; p<0,001), triglicérides-TG (216,0±115,0 vs 271,0± 172,0mg/dL; p<0,001) e índices de Castelli (IC) I e II (7,7±2,6 vs 8,6±3,2; p=0,002 e 5,0±1,5 vs 5,5±2,0; p=0,015). Sob ação da pravastatina, houve maior redução nos TG (32,0 vs 21,0% p<0,05) e IC I (-41,0% vs -37,0%; p<0,05) e II (-40,0 vs -38,0%; p<0,05) nos homens. CONCLUSÃO: Homens e mulheres diferiram nos fatores de risco e resposta ao tratamento com a pravastatina.

PURPOSE: To compare the prevalence of risk factors, and the response to pravastatin treatment between men and women. METHODS: We evaluated 486 men and 386 women, of these 230 men and 187 women received 10mg of pravastatin for three months. RESULTS: There were differences between women and men in respectively: arterial hypertension (45.5% vs 40.8%; p=0.0012), left ventricular hypertrophy (33.0% vs 22.0%; p=0.0041), sedentarism (94.8% vs 87.8%; p=0.0005), smoking (43.0% vs 61.8%; p<0.0001), Framingham scores (20.0±7.1 vs 16.0±7.6 p<0.001), HDL-C (43.0±11.0 vs 38.0±9.0mg/dL; p<0.001), triglycerides- TG (216.0±115.0 vs 271.0±172.0mg/dL; p<0.001) and Castelli's indexes (CI) I and II (7.7±2.6 vs 8.6±3.2; p=0.002 and 5.0±1.5 vs 5.5±2.0; p=0.015). In men under pravastatin treatment there was a greater reduction in TG (32.0 vs 21.0% p<0.05) and CI I (-41.0% vs -37.0%; p<0.05) and II (-40.0 vs -38.0%; p<0.05). CONCLUSION: Men and women differed in risk factors prevalence and response to treatment with pravastatin.

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Avaliação dos efeitos a curto prazo de programas de conscientização e de terapia com pravastatina em indivíduos de alto risco para doença cardiovascular provenientes de consultórios particulares
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Métricas
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Santos, Raul D.

; Nascimento, Luiz O. do

; Maranhão, Raul C.

Arquivos Brasileiros de Cardiologia

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

Out 1997, Volume 69 Nº 4 Páginas 225 - 230

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

OBJETIVO: Avaliar a eficácia de programas de conscientização (PC) sobre o controle de fatores de risco (FR) para doença cardiovascular (DCV). MÉTODOS: Pacientes hipercolesterolêmicos de alto risco para DCV foram divididos em 2 grupos durante 16 semanas. O grupo A (n=417, 54,3±10,0 anos, 55% homens) recebeu orientação verbal e escrita sobre controle de FR, e o grupo B (n=180, 54,4±10,9 anos, 45% homens) apenas orientação verbal. Todos os participantes receberam 10mg/dia de pravastatina por 12 semanas. Avaliaram-se o peso, pressão arterial, o colesterol total (CT) e frações, triglicérides, índices I e II de Castelli (CT/HDL-C e LDL-C/HDL-C) e escores de Framingham. RESULTADOS: No basal, A diferiu de B no HDL-C (40,0±11,0 vs 43,0±11,0mg/dl, p=0,013) e no índice I (8,2±3,0 vs 7,6±2,3, p=0,008). Após 16 semanas as variações % foram maiores em A do que B no CT (-28,0 vs -25,0, p<0,05), LDL-C (-29,0 vs -27,6, p<0,05), HDL-C (+13,7 vs. + 10,8, p<0,05) e índice I (-39,0 vs -33,0; p<0,05). A pravastatina potencializou os efeitos da dieta sobre os lípides. CONCLUSÃO: O PC parece ser mais eficaz a curto prazo, em reduzir os FR para DCV do que a orientação apenas verbal.

PURPOSE: To evaluate short-term efficacy of awareness programs (AP) in reducing coronary heart disease risk factors (CHDRF). METHODS: High risk hypercholesterolemic patients were divided in 2 groups during 16 weeks. Group A (n=417, 54.3±10.0 years, 55% males) received verbal and written orientation on CHDRF control, and group B (n=180, 54.4±10.9 years, 45% males) received only verbal orientation. All participants received pravastatin 10mg q.d. for 12 weeks. The evolution of body weight, arterial pressure, lipid profile, Castelli's I and II indexes (TC/HDL and LDL/HDL), and Framingham scores were evaluated. RESULTS: At baseline, A had a lower HDL-C (40.0±11.0 vs 43.0±11.0mg/dl, p=0.013) and a higher index I (8.2±3.0 vs 7.6±2.3, p=0.008) than B. After 16 weeks, A had greater change than B in TC (-28.0 vs -25.0, p<0.05), LDL-C (-29.0 vs -27.6, p<0.05), HDL-C levels (+13.7 vs +10.8, p<0.05) and in the Castelli's Index (-39.0 vs -33.0; p<0.05). In both groups pravastatin use potentialized the effects of diet on the lipid profile. CONCLUSION: The AP seemed to be more effective than verbal orientation alone in CHDRF reduction at short-term.

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