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| Registros recuperados: 81 | |
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| Cravo,Sergio L.; Campos,Ruy R.; Colombari,Eduardo; Sato,Mônica A.; Bergamaschi,Cássia M.; Pedrino,Gustavo R.; Ferreira-Neto,Marcos L.; Lopes,Oswaldo U.. |
| Several forms of experimental evidence gathered in the last 37 years have unequivocally established that the medulla oblongata harbors the main neural circuits responsible for generating the vasomotor tone and regulating arterial blood pressure. Our current understanding of this circuitry derives mainly from the studies of Pedro Guertzenstein, a former student who became Professor of Physiology at UNIFESP later, and his colleagues. In this review, we have summarized the main findings as well as our collaboration to a further understanding of the ventrolateral medulla and the control of arterial blood pressure under normal and pathological conditions. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypertension; Baroreceptor reflexes; Vasomotor nuclei; Sympathetic nerve activity; Arterial pressure. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300021 |
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| GONÇALVES,MARIA DA CONCEIÇÃO R.; MIRANDA NETO,MANOEL; CAVALCANTE,ISA G.M.; SEBADELHE,VITTÓRIA R.R.J.; SOUZA,MICHELE F. De; NEVES,JULIANA P.R.; SOUZA,FLAVIA T.L. DE; TAVARES,RENATA L.; COSTA,MATHEUS S.; SILVA,ALEXANDRE S.. |
| Abstract Given the scarcity of studies with elderly and the existence of studies investigating the effect of vitamin D supplementation in PEH (post exercise hypotension), this study evaluated the effect of a single megadose of vitamin D on resting blood pressure (RBP) and post-exercise hypotension (PEH) in the elderly. 11 hypertensive elderly women (70.3 ± 1.7 years) received a single megadose of 200.000 IU of cholecalciferol or a placebo, orally, through capsules. On day 7, the subjects performed 30 minutes of aerobic exercise with blood pressure measurement before exercise and every 10 minutes after exercise during 60 minutes, besides cardiac autonomic modulation. RBP did not significantly change. Exercise promoted significant systolic PEH only in one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aerobic exercise; Aged; Hypertension; Hypotension; Cholecalciferol. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100903 |
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| Silva,Gisleine Elisa Cavalcante da; Bazotte,Roberto Barbosa; Curi,Rui; Silva,Maria Angélica Rafaini Covas Pereira da. |
| The aim of this study was to investigate risk factors to coronary heart disease in two countryside villages in the State of Paraná, southern Brazil, typical in terms of the poverty and lack of access to public health care. All population was invited to participate in the study. The 462 volunteers (61.3% female, mean age = 42 years) showed high prevalence of hypercholesterolemia (7.0%), hypertriglyceridemia (19.0%), hyperglycemia (11.0%), hypertension (30.0%) and obesity (16.0%). The majority of the individuals, during the interview did not report the diseases detected by the testes. The results revealed that the high prevalence of hypercholesterolemia, hypertriglyceridemia, obesity, hypertension and diabetes mellitus could be consequence of the delayed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyperlipidemia; Hyperglycemia; Hypertension; Obesity; Coronary heart disease - Paraná State - Brazil. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000300008 |
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| Arruda Junior,Evanizio Roque de; Lacerda,Heloisa Ramos; Moura,Libia Cristina Rocha Vilela; Albuquerque,Maria de Fatima Pessoa Militão de; Miranda Filho,Democrito de Barros; Diniz,George Tadeu Nunes; Albuquerque,Valeria Maria Gonçalves de; Amaral,Josefina Cláudia Zirpoli; Ximenes,Ricardo Alencar de Arraes; Monteiro,Verônica Soares. |
| INTRODUCTION: Studies disagree as to whether there is a greater prevalence of hypertension among HIV/AIDS patients and the role of antiretroviral therapy. OBJECTIVE: Evaluate the prevalence of hypertension and risk factors in a cohort of HIV-infected patients, with emphasis on antiretroviral therapy. METHOD: Case-control study conducted at baseline of a cohort, between June/2007 and December/2008 in Pernambuco/Brazil. Blood pressure was classified as normal, prehypertension, and hypertension. RESULTS: Of 958 patients, 245 (25.6%) had hypertension (cases), 325 (33.9%) had prehypertension, and 388 (40.5%) were normotensive (controls). Comparison between hypertensive and normotensive patients showed that traditional factors, such as age > 40 (OR = 3.06, CI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV/AIDS; Hypertension; Antiretroviral therapy; Cardiovascular risk. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000300014 |
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| Almeida-Pititto,B.; Gimeno,S.G.A.; Freire,R.D.; Ribeiro-Filho,F.F.; Ferreira,S.R.G.. |
| We evaluated the relationship of leptin with hypertension adjusted for body mass index (BMI) and/or waist circumference in a population of Japanese-Brazilian women aged > or = 30 years with centrally distributed adiposity. After excluding diabetic subjects, the study subjects - who participated in a population-based study on the prevalence of metabolic syndrome - showed prevalence rates of obesity (BMI > or = 25 kg/m²) and central adiposity (waist > or = 80 cm) of 32.0 and 37.8%, respectively. The hypertensive group (N = 162) was older, had higher BMI (24.9 ± 4.2 vs 23.3 ± 3.4 kg/m², P < 0.001), waist circumference (81.1 ± 10.1 vs 76.3 ± 8.2 cm, P < 0.001) and insulin levels (8.0 ± 6.2 vs 7.1 ± 4.9 µU/mL, P < 0.05) than the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypertension; Body fat distribution; Insulin; Leptin; Centrally obese; Metabolic syndrome. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100012 |
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| Silva,M.C.; Azevedo,M.A.; Figueiredo,V.P.; Moura Junior,M.R.; Coelho Junior,D.; Martinelli,P.M.; Machado,R.P.; Alzamora,A.C.; Talvani,A.. |
| Trypanosoma cruzi triggers a progressive inflammatory response affecting cardiovascular functions in humans and experimental models. Angiotensin II, a key effector of the renin-angiotensin system, plays roles in mediating hypertension, heart failure, and inflammatory responses. T. cruzi and AngII can induce inflammatory responses by releasing inflammatory mediators. The aim of this study was to evaluate systemic AngII, tumor necrosis factor (TNF), and CX3CL1 mediators in a two-kidney one-clip (2K1C) renovascular hypertension model using Wistar rats infected with T. cruzi. Our data showed an increase in serum AngII in uninfected and T. cruzi-infected rats 1 week after 2K1C surgery compared to non-2K1C (Sham) animals. The baseline systolic blood pressure was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trypanosoma cruzi; Hypertension; Tumor necrosis factor; CX3CL1; Cardiac inflammation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000500614 |
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| Rodrigues,S.L.; Souza Júnior,P.R.; Pimentel,E.B.; Baldo,M.P.; Malta,D.C.; Mill,J.G.; Szwarcwald,C.L.. |
| High salt intake is related to an increase in blood pressure and development of hypertension. However, currently, there are no national representative data in Brazil using the gold standard method of 24-h urine collection to measure sodium consumption. This study aimed to determine salt intake based on 24-h urine collection in a sample of 272 adults of both genders and to correlate it with blood pressure levels. We used a rigorous protocol to assure an empty bladder prior to initiating urine collection. We excluded subjects with a urine volume <500 mL, collection period outside of an interval of 23-25 h, and subjects with creatinine excretion that was not within the range of 14.4-33.6 mg/kg (men) and 10.8-25.2 mg/kg (women). The mean salt intake was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sodium; Salt intake; Blood pressure; Hypertension; 24-h urine collection; Population-based study. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800728 |
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| Fonseca,S. F.; Teles,M. C.; Ribeiro,V. G. C.; Magalhães,F. C.; Mendonça,V. A.; Peixoto,M. F. D.; Leite,L. H. R.; Coimbra,C. C.; Lacerda,A. C. R.. |
| Individuals with systemic arterial hypertension have a higher risk of heat-related complications. Thus, the aim of this study was to examine the thermoregulatory responses of hypertensive subjects during recovery from moderate-intensity exercise performed in the heat. A total of eight essential hypertensive (H) and eight normotensive (N) male subjects (age=46.5±1.3 and 45.6±1.4 years, body mass index=25.8±0.8 and 25.6±0.6 kg/m2, mean arterial pressure=98.0±2.8 and 86.0±2.3 mmHg, respectively) rested for 30 min, performed 1 h of treadmill exercise at 50% of maximal oxygen consumption, and rested for 1 h after exercise in an environmental chamber at 38°C and 60% relative humidity. Skin and core temperatures were measured to calculate heat exchange... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypertension; Hot Environment; Thermoregulation. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015001201122 |
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| Rosenbaum,P.; Peres,R.B.; Zanella,M.T.; Ferreira,S.R.G.. |
| A double-blind, randomized, placebo-controlled study was carried out on 44 hypertensive type 2 diabetic subjects previously treated by diet associated or not with sulfonylurea to assess the effects of acarbose-induced glycemic control on blood pressure (BP) and hormonal parameters. Before randomization and after a 22-week treatment period (100 to 300 mg/day), the subjects were submitted to a standard meal test and to 24-h ambulatory BP monitoring (ABPM) and had plasma glucose, glycosylated hemoglobin, lipid profile, insulin, proinsulin and leptin levels determined. Weight loss was found only in the acarbose-treated group (75.1 ± 11.6 to 73.1 ± 11.6 kg, P<0.01). Glycosylated hemoglobin decreased only in the acarbose group (6.4 ± 1.7 to 5.6 ± 1.9%,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Type 2 diabetes mellitus; Acarbose; Hypertension; Hyperinsulinemia. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000800004 |
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| Shimojo,G.L.; Palma,R.K.; Brito,J.O.; Sanches,I.C.; Irigoyen,M.C.; De Angelis,K.. |
| The aim of this study was to investigate the effects of resistance exercise training on hemodynamics and cardiac autonomic control in ovariectomized spontaneously hypertensive rats. Female rats were divided into 4 groups: sedentary control (SC), sedentary hypertensive (SH), sedentary hypertensive ovariectomized (SHO), and resistance-trained hypertensive ovariectomized (RTHO). Resistance exercise training was performed on a vertical ladder (5 days/week, 8 weeks) at 40-60% maximal load. Direct arterial pressure was recorded. Vagal and sympathetic tones were measured by heart rate (HR) responses to methylatropine (3 mg/kg, iv) and propranolol (4 mg/kg, iv). Ovariectomy resulted in additional increases in blood pressure in hypertensive rats and was associated... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Resistance exercise training; Menopause; Hypertension; Sympathetic tone; Blood pressure. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000600523 |
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| Soufen,H.N.; Salemi,V.M.C.; Aneas,I.M.S.; Ramires,F.J.A.; Benício,A.M.D.; Benvenuti,L.A.; Krieger,J.E.; Mady,C.. |
| Cardiac interstitial fibrosis may contribute to ventricular dysfunction and the prognosis of patients with dilated cardiomyopathy. The objective of the present study was to determine if total myocardial collagen content and collagen type III/I (III/I ratio) mRNAs differ in hypertensive, alcoholic, and idiopathic dilated cardiomyopathy subjects. Echocardiography and exercise cardiopulmonary testing were performed in patients with idiopathic (N = 22), hypertensive (N = 12), and alcoholic (N = 11) dilated cardiomyopathy. Morphometric analysis of collagen was performed in fragments obtained by endomyocardial biopsy with picrosirius red staining. The collagen III/I ratio was determined by reverse transcription polymerase chain reaction. Samples of controls (N =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alcohol; Heart failure; Hypertension; Dilated cardiomyopathy; Collagen. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001200009 |
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| Forjaz,C.L.M.; Bartholomeu,T.; Rezende,J.A.S.; Oliveira,J.A.; Basso,L.; Tani,G.; Prista,A.; Maia,J.A.R.. |
| Blood pressure (BP) and physical activity (PA) levels are inversely associated. Since genetic factors account for the observed variation in each of these traits, it is possible that part of their association may be related to common genetic and/or environmental influences. Thus, this study was designed to estimate the genetic and environmental correlations of BP and PA phenotypes in nuclear families from Muzambinho, Brazil. Families including 236 offspring (6 to 24 years) and their 82 fathers and 122 mothers (24 to 65 years) were evaluated. BP was measured, and total PA (TPA) was assessed by an interview (commuting, occupational, leisure time, and school time PA). Quantitative genetic modeling was used to estimate maximal heritability (h²), and genetic and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Exercise; Hypertension; Environmental influence; Heritability; Genetic epidemiology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200023 |
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| da Veiga,D.T.A.; Bringhenti,R.; Copes,R.; Tatsch,E.; Moresco,R.N.; Comim,F.V.; Premaor,M.O.. |
| The prevalence of cardiovascular and metabolic diseases is increased in postmenopausal women, which contributes to the burden of illnesses in this period of life. Yerba mate (Ilex paraguariensis) is a native bush from Southern South America. Its leaves are rich in phenolic components, which may have antioxidant, vasodilating, hypocholesterolemic, and hypoglycemic proprieties. This post hoc analysis of the case-control study nested in the Obesity and Bone Fracture Cohort evaluated the consumption of yerba mate and the prevalence of hypertension, dyslipidemia, and coronary diseases in postmenopausal women. Ninety-five postmenopausal women were included in this analysis. A questionnaire was applied to evaluate the risk factors and diagnosis of cardiovascular... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yerba mate; Ilex paraguariensis; Postmenopausal women; Diabetes mellitus; Hypertension; Cardiovascular disease. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000600607 |
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| Lobato,N.S.; Filgueira,F.P.; Akamine,E.H.; Tostes,R.C.; Carvalho,M.H.C.; Fortes,Z.B.. |
| Obesity is strongly associated with high blood pressure, dyslipidemia, and type 2 diabetes. These conditions synergistically increase the risk of cardiovascular events. A number of central and peripheral abnormalities can explain the development or maintenance of high blood pressure in obesity. Of great interest is endothelial dysfunction, considered to be a primary risk factor in the development of hypertension. Additional mechanisms also related to endothelial dysfunction have been proposed to mediate the development of hypertension in obese individuals. These include: increase in both peripheral vasoconstriction and renal tubular sodium reabsorption, increased sympathetic activity and overactivation of both the renin-angiotensin system and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypertension; Obesity; Endothelial dysfunction; Oxidative stress; Renin-angiotensin system; Nitric oxide. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000500003 |
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| Registros recuperados: 81 | |
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