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1.
Hypertens Res ; 41(7): 515-523, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29686318

RESUMO

Microcirculation influences peripheral vascular resistance and therefore contributes to arterial blood pressure. The aim of this study was to investigate the correlation between serum markers of inflammation and microcirculatory parameters observed by nailfold videocapillaroscopy (NVC) in patients with resistant (RH, 58 [50-63] years, n = 25) or mild-to-moderate hypertension (MMH, 56 [47-64] years, n = 25) compared to normotensive patients (control group (CG), 33 [27-52] years, n = 25). C-reactive protein (CRP), endothelin, adiponectin, I-CAM and V-CAM levels were obtained by laboratory analysis. Functional capillary density (FCD; the number of capillaries with flowing red blood cells by unit tissue area), capillary diameters, maximum red blood cell velocity (RBCVmax) during the reactive hyperemia response/RBCVbaseline after 1 min of arterial occlusion at the finger base and time to reach RBCVmax were determined by NVC. A sub-analysis was also conducted on hypertensive patients not taking statins, with controlled/uncontrolled blood pressure. The RH group showed lower RBCV and RBCVmax values and longer TRBCVmax compared to MMH and CG patients, with worse values in those with uncontrolled blood pressure. FCD and diameters showed no significant differences among the three groups, with higher CRP values in the RH and MMH groups. An increase in endothelin was observed only in patients not taking statins in both hypertensive groups. Patients with severe hypertension and uncontrolled blood pressure levels presented more pronounced microvascular dysfunction, as well as higher serum values for CRP and endothelin (without statin treatment), suggesting that the use of statins decreases endothelin release.


Assuntos
Hipertensão/sangue , Microcirculação/fisiologia , Adiponectina/sangue , Adulto , Idoso , Biomarcadores/sangue , Velocidade do Fluxo Sanguíneo/fisiologia , Proteína C-Reativa/metabolismo , Estudos Transversais , Endotelinas/sangue , Endotélio Vascular/fisiopatologia , Feminino , Humanos , Hipertensão/fisiopatologia , Molécula 1 de Adesão Intercelular/sangue , Masculino , Angioscopia Microscópica , Pessoa de Meia-Idade , Unhas/irrigação sanguínea , Molécula 1 de Adesão de Célula Vascular/sangue , Adulto Jovem
2.
J Hum Hypertens ; 32(2): 105-113, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29335464

RESUMO

Hypertension is associated with microcirculatory impairment. Our objectives were to evaluate endothelial function and inflammatory biomarkers in patients with resistant (RH) and mild to moderate (MMH) arterial hypertension in comparison to normotensives (control group-CG). Three groups, 25 patients each, have been investigated, by anamnesis, venous occlusion plethysmography (VOP) and serum determination of adhesion molecules (VCAM, ICAM), adiponectin, endothelin and C-reactive protein (CRP). Patients not using statins and with or without blood pressure control were also analyzed. RH group showed smaller percentage increase of maximum forearm blood flow (FBF) (endothelial-dependent vasodilatation) than controls (p < 0.05), but no significant difference could be detected between MMH and CG groups on maximum FBF and minimum vascular resistance post-ischemia. RH and MMH groups showed higher resistance averages compared to controls (p < 0.05). Uncontrolled BP in hypertensive patients showed worse results for blood flow and resistance. Endothelial-independent vasodilatation was not affected. Endothelin levels were higher in RH and MMH groups (p < 0.05) not using statins. CRP was significantly higher only in RH compared to CG (p < 0.05). In conclusion patients with severe hypertension and lack of blood pressure control showed greater impairment of endothelial function with higher CRP and endothelin levels.


Assuntos
Biomarcadores/sangue , Endotélio Vascular/fisiopatologia , Hipertensão/fisiopatologia , Inflamação/sangue , Adulto , Idoso , Estudos de Casos e Controles , Estudos Transversais , Humanos , Hipertensão/sangue , Pessoa de Meia-Idade , Pletismografia
3.
Diabetol Metab Syndr ; 2: 55, 2010 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-20718958

RESUMO

Overweight and obesity in youth is a worldwide public health problem. Overweight and obesity in childhood and adolescents have a substantial effect upon many systems, resulting in clinical conditions such as metabolic syndrome, early atherosclerosis, dyslipidemia, hypertension and type 2 diabetes (T2D). Obesity and the type of body fat distribution are still the core aspects of insulin resistance and seem to be the physiopathologic links common to metabolic syndrome, cardiovascular disease and T2D. The earlier the appearance of the clustering of risk factors and the higher the time of exposure, the greater will be the chance of developing coronary disease with a more severe endpoint. The age when the event may occur seems to be related to the presence and aggregation of risk factors throughout life.The treatment in this age-group is non pharmacological and aims at promoting changes in lifestyle. However, pharmacological treatments are indicated in special situations.The major goals in dietary treatments are not only limited to weight loss, but also to an improvement in the quality of life. Modification of risk factors associated to comorbidities, personal satisfaction of the child or adolescent and trying to establish healthy life habits from an early age are also important. There is a continuous debate on the best possible exercise to do, for children or adolescents, in order to lose weight. The prescription of physical activity to children and adolescents requires extensive integrated work among multidisciplinary teams, patients and their families, in order to reach therapeutic success.The most important conclusion drawn from this symposium was that if the growing prevalence of overweight and obesity continues at this pace, the result will be a population of children and adolescents with metabolic syndrome. This would lead to high mortality rates in young adults, changing the current increasing trend of worldwide longevity. Government actions and a better understanding of the causes of this problem must be implemented worldwide, by aiming at the prevention of obesity in children and adolescents.

4.
Diabetol Metab Syndr ; 2: 2, 2010 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-20205782

RESUMO

The prevalence of pre-diabetes is increasing worldwide and may start 7 to 10 years before the clinical diagnosis of diabetes. In this stage the presence and accumulation of risk factors is common and already implies an increase in cardiovascular risk. Likewise, the onset of cardiovascular diseases (CVD), mainly coronary artery disease (CAD), peripheral vascular disease and cerebrovascular disease can also take place, all of which account for high rates of morbidity and mortality worldwide. Considering pre-diabetes as a clinical entity, non-pharmacological and pharmacological treatments are indicated with drugs which have shown clinical benefits related to reduction in morbidity and mortality. However, there is still need for new long-term studies to assess the real benefits of several new therapeutical approaches, as well as its cost-effectiveness.

5.
Arq Bras Cardiol ; 88 Suppl 1: 2-19, 2007 Apr.
Artigo em Português | MEDLINE | ID: mdl-17515982
6.
Arq. bras. cardiol ; 88(supl.1): 2-19, abr. 2007. tab
Artigo em Português | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: ses-7747
7.
Arq. bras. cardiol ; 88(supl.1): 2-19, abr. 2007. tab
Artigo em Português | LILACS | ID: lil-451704
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