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1.
Rev. argent. endocrinol. metab ; 56(1): 50-59, mar. 2019. graf
Article in Spanish | LILACS (Americas) | ID: biblio-1041759

ABSTRACT

Resumen La enfermedad cardiovascular ocupa uno de los primeros puestos como causa de muerte en el mundo. Durante el primer año del proyecto, nos propusimos hallar la prevalencia y su distribución por sexo de hipertensión, obesidad general y abdominal en donantes de sangre. Establecer la frecuencia y su distribución por sexo de Síndrome Metabólico y hallar la incidencia de diabetes mellitus tipo 2; en el segundo año nos centramos en re-evaluar y valorar el impacto de la intervención en cada individuo. En una población de dadores de sangre presuntamente sanos del Banco de Sangre, Tejidos y Biológicos de la Provincia de Misiones. Se obtuvieron datos antropométricos y presión arterial. Se realizó una extracción sanguínea con ayuno de 12 horas para las determinaciones bioquímicas, consulta médica y tratamiento para quienes lo necesitaron. Se realizó una encuesta abierta cualitativa. Se obtuvieron datos de 141 donantes voluntarios de sangre, 47 mujeres y 94 varones. El 38,1% tenía presión arterial elevada. El 29,5% presento obesidad. El 59 % obesidad abdominal. 41,7 % de los donantes presentaba SM. Se halló una incidencia de diabetes mellitus tipo 2 de 8,6 % (n=12). El 39,6 % (n=55) de los individuos presentó Glucemia Alterada en Ayunas. Todos los individuos que presentaron algún factor de riesgo, concurrieron a la consulta médica. Al año se los recito para su control. De los 30 individuos que estaban en tratamiento solo 9 continuaron haciendolo, impidiendo esto una correcta evaluación clínica global y medición del impacto de las intervenciones que se realizaron. De toda la poblacion de estudio, solo en 4 individuos se ha notado un cambio significativo transcurrido un año. Casi la totalidad de la población de donantes presentó al menos un factor de riesgo para enfermedad cardiovascular, todos ellos modificables, destacando de ello la corta edad de la población. Ninguno de los individuos del estudio tenía conocimiento de su estado.


ABSTRACT Cardiovascular disease occupies one of the first places as a cause of death in the world. During the first year of the project, we set out to find the prevalence and its distribution by sex of hypertension, general and abdominal obesity in blood donors. Establish the frequency and distribution by sex of Metabolic Syndrome (MS) and find the incidence of type 2 diabetes mellitus; while in the second year we focused on re-evaluating and assessing the impact of the intervention on each individual. In a population of presumably healthy blood donors of the Blood, Tissue and Biological Bank of the Province of Misiones. Volunteer donors between 20 and 50 years were evaluated, 2014-2015 period. Anthropometric data and blood pressure were obtained. A blood extraction with fasting of 12 hours was performed for biochemical determinations, medical consultation and treatment for those who needed it. Period 2015-2016, a qualitative open survey and biochemical-clinical evaluation of individuals was conducted. Data were obtained from 141 voluntary blood donors, 47 women and 94 men. 38.1% of the total population had high blood pressure, 29.5% obesity, 59% of the study population had abdominal obesity and 41.7% of donors had MS. An incidence of type 2 diabetes mellitus of 8.6% (n = 12) and 39.6% (n = 55) of the individuals had altered fasting blood glucose. All the individuals who presented some risk factor attended the medical consultation. At the end of one year they are re-scheduled for re-evaluation. Although, the majority agreed on the importance of carrying out health checks, of the 30 individuals who were in treatment only 9 continued to do so, preventing this a correct global clinical evaluation and measuring the impact of the interventions that were performed. Of all the study population, only 4 individuals have noticed a significant change after one year, improving all their risk factors. The parameter that showed the greatest change, in a year, was the fasting blood glucose. Everyone was aware of the significance of cardiovascular risk factors and what their consequences were. Almost all of the donor population had at least one risk factor for cardiovascular disease, all of them modifiable, highlighting the short age of the population. None of the individuals in the study was aware of their condition. Only 9 individuals completed the treatment scheme indicated according to their pathology.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Cardiovascular Diseases/prevention & control , Epidemiology/statistics & numerical data , Incidence , Metabolic Syndrome/blood , Diabetes Mellitus, Type 2/blood , Hypertension/blood , Obesity/blood
2.
J. pediatr. (Rio J.) ; 94(5): 532-538, Sept.-Oct. 2018. tab, graf
Article in English | LILACS (Americas) | ID: biblio-975995

ABSTRACT

Abstract Objective: Total bilirubin is beneficial for protecting cardiovascular diseases in adults. The authors aimed to investigate the association of total bilirubin, red blood cell, and hemoglobin levels with the prevalence of high blood pressure in children and adolescents. Methods: A total of 3776 students (aged from 6 to 16 years old) were examined using cluster sampling. Pre-high blood pressure and high blood pressure were respectively defined as the point of 90th and 95th percentiles based on the Fourth Report on the Diagnosis, Evaluation, and Treatment of High Blood Pressure in Children and Adolescents. Both systolic and diastolic blood pressure were standardized into z-scores. Results: Peripheral total bilirubin, red blood cell and hemoglobin levels were significantly correlated with age, and also varied with gender. Peripheral total bilirubin was negatively correlated with systolic blood pressure in 6- and 9-year-old boys, whilst positively correlated with diastolic blood pressure in the 12-year-old boys and 13- to 15-year-old girls (p < 0.05). Higher levels of red blood cell and hemoglobin were observed in pre-high blood pressure and high blood pressure students when compared with their normotensive peers (p < 0.01). The increases in red blood cell and hemoglobin were significantly associated with high blood pressure after adjusting for confounding factors. The ORs (95% CI) of each of the increases were 2.44 (1.52-3.92) and 1.04 (1.03-1.06), respectively. No statistical association between total bilirubin and high blood pressure was observed (p > 0.05). Conclusion: Total bilirubin could be weakly correlated with both systolic and diastolic blood pressure, as correlations varied with age and gender in children and adolescents; in turn, the increased levels of red blood cell and hemoglobin are proposed to be positively associated with the prevalence of high blood pressure.


Resumo Objetivo: A bilirrubina total é benéfica para proteger contra doenças cardiovasculares em adultos. Nosso objetivo foi investigar a associação dos níveis de bilirrubina total, glóbulos vermelhos e hemoglobina com a prevalência de pressão arterial elevada em crianças e adolescentes. Métodos: Um total de 3.776 estudantes (com idade entre 6-16 anos) foram examinados utilizando uma amostra em blocos. A pressão arterial elevada anterior e a pressão arterial elevada foram definidas como o 90° e 95° percentil, respectivamente, com base nos critérios do Quarto Relatório sobre Diagnóstico, Avaliação e Tratamento da Pressão Arterial elevada em Crianças e Adolescentes. A pressão arterial sistólica e pressão arterial diastólica foram padronizadas no escore z. Resultados: Os níveis periféricos de bilirrubina total, glóbulos vermelhos e hemoglobina foram significativamente correlacionados à idade, que também variou de acordo com o sexo. A bilirrubina total periférica apresentou uma correlação negativa com a pressão arterial sistólica em meninos com 6 e 9 anos, ao passo que apresentou uma correlação positiva com a pressão arterial diastólica em meninos de 12 anos e meninas de 13 a 15 anos (p < 0,05). Foram observados níveis mais elevados de glóbulos vermelhos e hemoglobina em estudantes com pressão arterial elevada anterior e pressão arterial elevada em comparação a indivíduos normotensos (p < 0,01). Os aumentos de glóbulos vermelhos e hemoglobina tiveram uma associação significativa com a pressão arterial elevada após ajuste dos fatores de confusão. As RC (IC de 95%) de cada um dos aumentos foram 2,44 (1,52-3,92) e 1,04 (1,03-1,06) respectivamente. Não foi observada nenhuma associação estatística entre o nível de bilirrubina total e a pressão arterial elevada (p > 0,05). Conclusão: A bilirrubina total pode ter correlações fracas com a pressão arterial sistólica e a pressão arterial diastólica, variando de acordo com a idade e o sexo em crianças e adolescentes, enquanto isso, propõe-se que o aumento dos níveis de glóbulos vermelhos e hemoglobina está positivamente associado à prevalência de pressão arterial elevada.


Subject(s)
Humans , Male , Female , Child , Adolescent , Bilirubin/blood , Hemoglobins/analysis , Erythrocytes , Hypertension/blood , Blood Pressure Determination , Brazil/epidemiology , Biomarkers/blood , Prevalence , Hypertension/diagnosis , Hypertension/epidemiology
3.
Braz. j. med. biol. res ; 50(12): e6211, 2017. tab, graf
Article in English | LILACS (Americas) | ID: biblio-888961

ABSTRACT

Recent evidence suggests that cell-derived circulating miRNAs may serve as biomarkers of cardiovascular diseases. However, a few studies have investigated the potential of circulating miRNAs as biomarkers for left ventricular hypertrophy (LVH). In this study, we aimed to characterize the miRNA profiles that could distinguish hypertensive patients with LHV, hypertensive patients without LVH and control subjects, and identify potential miRNAs as biomarkers of LVH. LVH was defined by left ventricular mass indexed to body surface area >125 g/m2 in men and >110 g/m2 in women and patients were classified as hypertensive when presenting a systolic blood pressure of 140 mmHg or more, or a diastolic blood pressure of 90 mmHg or more. We employed miRNA PCR array to screen serum miRNAs profiles of patients with LVH, essential hypertension and healthy subjects. We identified 75 differentially expressed miRNAs, including 49 upregulated miRNAs and 26 downregulated miRNAs between LVH and control patients. We chose 2 miRNAs with significant differences for further testing in 59 patients. RT-PCR analysis of serum samples confirmed that miR-7-5p and miR-26b-5p were upregulated in the serum of LVH hypertensive patients compared with healthy subjects. Our findings suggest that these miRNAs may play a role in the pathogenesis of hypertensive LVH and may represent novel biomarkers for this disease.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Hypertension/blood , Hypertrophy, Left Ventricular/blood , MicroRNAs/blood , Analysis of Variance , Biomarkers/blood , Case-Control Studies , Down-Regulation , Gene Expression Profiling/methods , Hypertension/genetics , Hypertrophy, Left Ventricular/genetics , Predictive Value of Tests , Real-Time Polymerase Chain Reaction , Reference Standards , Reference Values , Risk Factors , Up-Regulation
4.
Medical Journal of Tabriz University of Medical Sciences and Health Services. 2017; 39 (1): 6-15
in Fa | IMEMR (Eastern Mediterranean) | ID: emr-188668

ABSTRACT

Background: According to uncommon adaptations in blood pressure observed in response to exercise, the standardized exercise prescriptions need to be reconsidered. Therefore, prediction of blood pressure adaptations in response to exercise and detraining is needed


Methods: In this study, 70 sedentary pre-hypertensive men randomized into experimental and control groups. Experimental subjects participated in aerobic training [24 sessions [3/wk] with 60 to 70% of MHR, 40 min/session] which followed by two weeks of detraining. The data were analyzed using Pearson correlation, Kappa test, ANOVA and stepwise regression


Results: After 8 weeks of training and following to detraining some of experimental subjects experienced decline in Mean Atrial Pressure [MAP], some had no changes and some had even experienced its increasing condition [P<0.05]. All metabolic risk factors had significant changes after training and also detrainng, however; Zmets had significant changes just in those subjects with MAP decrease [P<0.05]


The metabolic risk count and also Zmets were higher in both GR [x[2]=52.73, P=0.001] and BR subjects [x[2]=80.1, P=0.001] at baseline. MAP, age, BMI and also plasma HDL and LDL values at baseline were recognized as the significant predictors of Observed changes in MAP after training [R[2]=0.76, P<0.05]


Conclusions: All the Metabolic risk factors are important in predicting the direction of MAP response to training, however; participation in aerobic exercise would not possibly lead to bad responding in those with high metabolic risk factors. However, more research remains to be done because of the lack of similar evidence in this area


Subject(s)
Humans , Male , Hypertension/blood , Blood Pressure , Risk Factors , Metabolic Diseases/complications , Analysis of Variance
5.
Clinics ; 71(12): 709-714, Dec. 2016. tab
Article in English | LILACS (Americas) | ID: biblio-840024

ABSTRACT

OBJECTIVES: To analyse the frequency of metabolic syndrome in young adult female dermatomyositis patients and its possible association with clinical and laboratory dermatomyositis-related features and serum adipocytokines. METHOD: This cross-sectional study included 35 dermatomyositis patients and 48 healthy controls. Metabolic syndrome was defined according to the 2009 Joint Interim Statement. RESULTS: Patient age was comparable in the dermatomyositis and control groups, and the median disease duration was 1.0 year. An increased prevalence of metabolic syndrome was detected in the dermatomyositis group (34.3% vs. 6.3%; p=0.001). In addition, increased serum adiponectin and resistin levels were noted in contrast to lower leptin levels. In dermatomyositis patients, adipocytokine levels were correlated with the levels of total cholesterol, low-density cholesterol, triglycerides and muscle enzymes. A comparison of dermatomyositis patients with (n=12) and without (n=23) syndrome metabolic revealed that adipocytokine levels were also correlated with age, and that dermatomyositis patients with metabolic syndrome tended to have more disease activity despite similar adipocytokine levels. CONCLUSIONS: Metabolic syndrome is highly prevalent in young adult female dermatomyositis patients and is related to age and disease activity. Moreover, increased serum adiponectin and resistin levels were detected in dermatomyositis patients, but lower serum leptin levels were observed.


Subject(s)
Humans , Female , Adult , Adipokines/blood , Dermatomyositis/blood , Metabolic Syndrome/blood , Age of Onset , Case-Control Studies , Cholesterol/blood , Cross-Sectional Studies , Diabetes Mellitus/blood , Hypertension/blood , Muscle, Skeletal/enzymology , Reference Values , Risk Factors , Triglycerides/blood
6.
J. bras. nefrol ; 38(4): 403-410, Oct.-Dec. 2016. tab
Article in English | LILACS (Americas) | ID: biblio-829072

ABSTRACT

Abstract Introduction: Early detection diabetic nephropathy (DN) is important. Whether serum uric acid (SUA) has a role in the development of DN is not known. Objective: To study the relationship between SUA and hypertension, early nephropathy and progression of chronic kidney disease (CKD) in type 2 diabetes mellitus (T2DM). Methods: The total number of the study was 986 participants, according to presence and duration of diabetes were classified into three groups. Group I; including 250 healthy participants. Group II; including 352 with onset of diabetes < 5 years. Group III; including 384, with the onset of diabetes > 5 years. All participants were submitted to complete clinical examination, anthropometric measurements, laboratory investigations, including glycosylated hemoglobin (HbA1C), as well triglycerides to high-density lipoprotein ratios (TG/HDL-C), SUA, urinary albumin/creatinine ratio (ACR) and estimated glomerular filtration rate (eGFR). Results: SUA, BP, HbA1c, TG/HDL-C ratio, and ACR levels were significantly higher in group III than group I, II and in II than I. eGFR significantly lower in group III than group I, II and in II than I (p < 0.001). Age, BMI, BP, HbA1c, TG/HDL-C, ACR, were positively correlated with SUA, while GFR negatively correlated. SUA at level of > 6.1 mg/dl, > 6.2 mg/dl and > 6.5 mg/dl had a greater sensitivity and specificity for identifying hypertension, early nephropathy and decline eGFR respectively. Conclusion: Even high normal SUA level, was associated with the risk of hypertension, early nephropathy and decline of eGFR. Moreover SUA level may identify the onset of hypertension, early nephropathy and progression of CKD in T2DM.


Resumo Introdução: A detecção precoce da nefropatia diabética (ND) é importante. O ácido úrico sérico (AUS) tem um papel ainda desconhecido no desenvolvimento de ND. Objetivo: Estudar a relação entre AUS e hipertensão, nefropatia precoce e progressão da doença renal crônica (DRC) no diabetes mellitus tipo 2 (DM2). Métodos: O estudo contou com 986 participantes, de acordo com a presença e a duração do diabetes, os pacientes foram classificados em três grupos. O Grupo I incluiu 250 participantes saudáveis. O Grupo II incluiu 352 pacientes com início de diabetes < 5 anos. O Grupo III incluiu 384 pacientes com o aparecimento de diabetes > 5 anos. Todos os participantes foram submetidos a exame clínico completo, medidas antropométricas, exames laboratoriais - incluindo hemoglobina glicosilada (HbA1C), bem como a razão entre triglicérides e lipoproteína de alta densidade (TG/HDL-C), AUS, razão creatinina/albumina (RCA) urinária, e taxa estimada de filtração glomerular (eTFG). Resultados: A razão AUS, PA, HbA1c, TG/HDL-C e RCA foi significativamente maior no grupo III do que no grupo I, II e em II do que I. A eTFG foi significativamente menor no grupo III do que nos grupos I, II e no II do que no I (p < 0,001). Idade, IMC, PA, HbA1c, razão TG/HDL-C, RCA, foram positivamente correlacionados com AUS, enquanto que a TFG esteve negativamente correlacionada. O AUS a níveis > 6,1 mg/dl, > 6,2 mg/dl e > 6,5 mg/dl apresentou maior sensibilidade e especificidade para identificar hipertensão, nefropatia precoce e declínio da eTFG, respectivamente. Conclusão: Mesmo elevados níveis de AUS, foi associado ao risco de hipertensão, nefropatia precoce e declínio da eTFG. Além disso, o nível de AUS pode identificar o início da hipertensão, nefropatia precoce e progressão da DRC em DM2.


Subject(s)
Humans , Male , Female , Middle Aged , Diabetes Mellitus, Type 2/blood , Diabetic Nephropathies/etiology , Diabetic Nephropathies/blood , Renal Insufficiency, Chronic/blood , Hypertension/etiology , Hypertension/blood , Time Factors , Uric Acid/blood , Case-Control Studies , Disease Progression , Renal Insufficiency, Chronic/etiology
7.
Clinics ; 71(7): 375-380, tab, graf
Article in English | LILACS (Americas) | ID: lil-787432

ABSTRACT

OBJECTIVES: Previous studies have demonstrated that both low and high hemoglobin concentrations are predictive of adverse cardiovascular outcomes in various populations. However, an association of hemoglobin with the ankle-brachial index, which is widely used as a screening test for peripheral arterial disease, has not yet been identified. METHODS: We examined 786 subjects (236 women and 550 men) who received routine physical check-ups. The ankle-brachial index and several hematological parameters, including the hemoglobin level, hematocrit and red blood cell count and other demographic and biochemical characteristics were collected. Univariate and multivariate linear regression analyses were performed to assess the relationships between the ankle-brachial index and the independent determinants. Receiver operating characteristic curve analysis was conducted to calculate the cut-off level of hemoglobin for detecting a relatively low ankle-brachial index (less than 20% of all subjects, which was 1.02). RESULTS: The hemoglobin level, hematocrit and red blood cell count were correlated with the ankle-brachial index in the males (r=-0.274, r=-0.224 and r=-0.273, respectively, p<0.001 for all), but these associations were not significant in the females. Multivariate linear regression analysis revealed that the independent determinants of the ankle-brachial index included age, total cholesterol, high-density lipoprotein cholesterol and the white blood cell count for the females and age, hypertension, total cholesterol and hemoglobin (β=-0.001, p<0.001) for the males after adjusting for confounding factors. Receiver operating characteristic curve analysis revealed that the cut-off level of hemoglobin for predicting a low ankle-brachial index was 156.5 g/L in the males. CONCLUSIONS: A high hemoglobin concentration was independently correlated with a low ankle-brachial index in the healthy males, indicating that an elevation in this level may be associated with an increased atherosclerosis risk.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Ankle Brachial Index/methods , Cardiovascular Diseases/blood , Hemoglobins/analysis , Blood Cell Count , Body Mass Index , Cardiovascular Diseases/physiopathology , Cholesterol/blood , Cross-Sectional Studies , Hypertension/blood , Multivariate Analysis , Predictive Value of Tests , Regression Analysis , Risk Factors , Sensitivity and Specificity , Sex Factors , Triglycerides/blood , Uric Acid/blood
8.
Clinics ; 71(5): 257-263, May 2016. tab, graf
Article in English | LILACS (Americas) | ID: lil-782838

ABSTRACT

OBJECTIVES: The goal of this study was to evaluate the relationship between serum albumin levels and 24-hour ambulatory blood pressure monitoring (24-h ABPM) recordings in non-diabetic essential hypertensive patients. METHODS: A total of 354 patients (mean [SD] age: 55.5 [14.3] years, 50% females) with essential hypertension and 24-h ABPM recordings were included. Patient 24-h nighttime and daytime ABPM values, systolic and diastolic dipping status and average nocturnal dipping were recorded. The correlations between serum albumin levels and nocturnal systolic and diastolic dipping were evaluated, and correlates of average nocturnal systolic dipping were determined via a linear regression model. RESULTS: Overall, 73.2% of patients were determined to be non-dippers. The mean (SD) levels of serum albumin (4.2 [0.3] g/dL vs. 4.4 [0.4] g/dL, p<0.001) and the average nocturnal systolic (15.2 [4.8] mmHg vs. 0.3 [6.6] mmHg, p<0.001) and diastolic dipping (4.2 [8.6] mmHg vs. 18.9 [7.0] mmHg, p<0.001) were significantly lower in non-dippers than in dippers. A significant positive correlation was noted between serum albumin levels and both systolic (r=0.297, p<0.001) and diastolic dipping (r=0.265, p<0.001). The linear regression analysis revealed that for each one-unit increase in serum albumin, the average nocturnal dip in systolic BP increased by 0.17 mmHg (p=0.033). CONCLUSION: Our findings indicate an association between serum albumin levels and the deterioration of circadian BP rhythm among essential hypertensive patients along with the identification of a non-dipper pattern in more than two-thirds of patients. Our findings emphasize the importance of serum albumin levels, rather than urinary albumin excretion, as an independent predictor of nocturnal systolic dipping, at least in non-diabetic essential hypertensive patients with moderate proteinuria.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Blood Pressure Monitoring, Ambulatory/methods , Hypertension/physiopathology , Serum Albumin/analysis , Albuminuria/physiopathology , Blood Pressure/physiology , Circadian Rhythm/physiology , Essential Hypertension , Hypertension/blood , Predictive Value of Tests , Serum Albumin/physiology
9.
Braz. j. med. biol. res ; 49(3): e5026, Mar. 2016. tab, graf
Article in English | LILACS (Americas) | ID: lil-771944

ABSTRACT

Hypertension is characterized by a pro-inflammatory status, including redox imbalance and increased levels of pro-inflammatory cytokines, which may be exacerbated after heat exposure. However, the effects of heat exposure, specifically in individuals with inflammatory chronic diseases such as hypertension, are complex and not well understood. This study compared the effects of heat exposure on plasma cytokine levels and redox status parameters in 8 hypertensive (H) and 8 normotensive (N) subjects (age: 46.5±1.3 and 45.6±1.4 years old, 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). They remained at rest in a sitting position for 10 min in a thermoneutral environment (22°C) followed by 30 min in a heated environmental chamber (38°C and 60% relative humidity). Blood samples were collected before and after heat exposure. Plasma cytokine levels were measured using sandwich ELISA kits. Plasma redox status was determined by thiobarbituric acid reactive substances (TBARS) levels and ferric reducing ability of plasma (FRAP). Hypertensive subjects showed higher plasma levels of IL-10 at baseline (P<0.05), although levels of this cytokine were similar between groups after heat exposure. Moreover, after heat exposure, hypertensive individuals showed higher plasma levels of soluble TNF receptor (sTNFR1) and lower TBARS (P<0.01) and FRAP (P<0.05) levels. Controlled hypertensive subjects, who use angiotensin-converting-enzyme inhibitor (ACE inhibitors), present an anti-inflammatory status and balanced redox status. Nevertheless, exposure to a heat stress condition seems to cause an imbalance in the redox status and an unregulated inflammatory response.


Subject(s)
Humans , Male , Adult , Middle Aged , Cytokines/blood , Hypertension/physiopathology , Arterial Pressure/physiology , Blood Pressure/physiology , Case-Control Studies , Heart Rate/physiology , Hot Temperature , Hypertension/blood , Inflammation/physiopathology , Lipid Peroxidation/physiology , Oxidation-Reduction , Thiobarbituric Acid Reactive Substances/analysis
10.
Rev. chil. endocrinol. diabetes ; 9(1): 19-26, ene. 2016. tab, ilus
Article in Spanish | LILACS (Americas) | ID: biblio-831339

ABSTRACT

Background: Treatment of dendritic cells (DC) with aldosterone induces the secretion of IL-6 and TGF-beta. The polarization of naïve T cells to helper 17 T lymphocytes with DCs pre-incubated with aldosterone, has been described in vivo, generating an IL-17 hyper-secreting phenotype, a cytokine associated with cardiac and renal fibrosis. There are mineralocorticoid receptors (MR) in immune cells and their activation may determine the inflammatory (M1) or adaptive (M2) macrophage phenotype. Aldosterone levels could regulate immunogenic gene expression in these cells, modulating the liberation of specific cytokines. Aim: To assess in humans the association of aldosterone levels and IL-17 with inflammatory markers in peripheral blood mononuclear cells (PBMC). Material and Methods: In blood samples of 176 participants aged 18 to 67 years (61 percent women) with a body mass index of 27.1 +/- 4.8 kg/m2, aldosterone, plasma renin activity (ARP), cortisol, C reactive protein, andIL-17 were measured. mRNA was isolated from PBMCs to measure the expression of MR RAC-1, HO-1, TLR-4, CD-14, NGAL and IL-17 by real time polymerase chain reaction. Results: Aldosterone correlated positively with ARP and the expression of CD-14 in PBMCs. Plasma levels of IL-17 were positively associated with the expression of MR, Rac1a and NGAL. Conclusions: Aldosterone and IL-17 levels were associated with inflammatory activation markers in PBMC, which could activate MRand promote a subclinical inflammatory status inducing hypertension.


Subject(s)
Humans , Male , Adolescent , Adult , Female , Young Adult , Middle Aged , Aldosterone/genetics , Hypertension/genetics , Hypertension/blood , /genetics , Aldosterone/blood , Biomarkers , Gene Amplification , /blood , Real-Time Polymerase Chain Reaction , Receptors, Mineralocorticoid
12.
Rev. méd. Chile ; 143(9): 1105-1113, set. 2015. tab
Article in Spanish | LILACS (Americas) | ID: lil-762680

ABSTRACT

Background: Chronic kidney disease is a major health problem since it is associated with a high cardiovascular risk, total morbidity and mortality, increasing prevalence and high cost treatment. Aim: To assess the frequency of chronic kidney disease among patients consulting in a cardiology clinic. Material and Methods: Cross-sectional assessment of 649 patients attended at a cardiology clinic. Demographic, clinical, electrocardiographic, echocardiographic and laboratory variables were registered. Patients were considered to have a kidney failure when their estimated glomerular filtration rate was < 60 ml/min/1.73 m² according to the Modification of Diet in Renal Disease (MDRD) formula. Kidney failure was considered chronic if this alteration lasted ≥ 3 months and hidden when serum creatinine levels were normal. Results: The frequency of kidney failure was 20.8% (28.4% in patients ≥ 65 years old). The mean age of patients with the disease was 71.5 ± 9.1 years and 52% were women. Eighty seven percent were in stage 3, 10% in stage 4 and 3% in stage 5. Among patients with kidney failure, in 114 (84%) it was chronic and in 28%, hidden. The latter was observed almost exclusively in women with creatinine levels of approximately 1 mg/dl. Hypertension (Odds ratio (OR) 4.2), age (OR 1.1), ventricular ejection fraction (OR 0.97) and low hemoglobin (OR 0.735) were the risk factors for kidney failure detected in the multivariate analysis. Conclusions: The frequency of kidney failure (chronic or hidden) was high in this group of cardiologic patients. Most patients had a mild to moderate failure and the risk factors were hypertension, age, low ventricular ejection fraction and low hemoglobin levels.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Cardiovascular Diseases/epidemiology , Renal Insufficiency, Chronic/epidemiology , Renal Insufficiency/epidemiology , Age Factors , Cross-Sectional Studies , Cardiovascular Diseases/complications , Creatinine/blood , Hemoglobins/analysis , Hypertension/blood , Prevalence , Retrospective Studies , Risk Factors , Renal Insufficiency, Chronic/complications , Renal Insufficiency/complications , Spain/epidemiology , Stroke Volume/physiology
13.
Rev. Assoc. Med. Bras. (1992) ; 61(4): 347-354, July-Aug. 2015. tab
Article in English | LILACS (Americas) | ID: lil-761719

ABSTRACT

SummaryIntroduction:overweight and obesity in adolescents are major public health problems with particular interest, because of their potential association with risk factors for development of diseases. The study aimed to determine the prevalence of overweight and obesity in adolescents in southern Portugal and investigate the association with risk factors for development of cardiovascular, respiratory and musculoskeletal diseases.Methods:the sample consisted of 966 adolescents aged 10 to 16 years. The calculation of body mass index (BMI), evaluation of blood glucose, total cholesterol and triglycerides, blood pressure, spirometry and application of low back pain (LBP) questionnaire were performed.Results:178 (18.4%) adolescents were overweight and 52 (5.4%) obese. None of the variables revealed a statistically significant association with overweight and obesity. The presence of high blood pressure was observed in 200 (20.7%) individuals and hypertension in 158 (16.4%) adolescents. Overweight and obese adolescents are 2.3 times more likely to develop signs of pre-hypertension and hypertension. 559 (57.9%) students had restrictive respiratory disorders and 23 (2.4%) had obstructive disorders. Those who were overweight and obese had 0.64 probability of having restrictive respiratory disorders.Conclusion:there was a high prevalence of overweight and obesity in Portuguese adolescents and these showed a statistically significant relationship with the development of pre-hypertension and hypertension, and restrictive respiratory disorders.


ResumoIntrodução:o sobrepeso e a obesidade em adolescentes são atualmente considerados problemas de saúde pública, com interesse decorrente de sua associação a fatores de risco para o desenvolvimento de doenças.Objetivo:determinar a prevalência de sobrepeso e obesidade em adolescentes do sul de Portugal e investigar os fatores associados ao desenvolvimento de doenças cardiovasculares, respiratórias e musculoesqueléticas.Métodos:a amostra foi constituída por 966 adolescentes com idade entre 10 e 16 anos. Foi calculado o índice de massa corporal (IMC) e foram realizadas avaliações de glicemia, colesterol total, triglicerídeos, pressão arterial, espirometria, além da aplicação de um questionário para avaliar a presença de lombalgia.Resultados:cento e setenta e oito (18,4%) adolescentes apresentaram sobrepeso e 52 (5,4%) eram obesos. Nenhuma das variáveis analisadas revelou associação estatisticamente significativa com sobrepeso e obesidade. Duzentos (20,7%) adolescentes apresentaram pressão arterial elevada e 158 (16,4%), hipertensão. Os adolescentes com sobrepeso e obesidade revelaram 2,3 vezes mais chances de desenvolver pré-hipertensão e hipertensão. Quinhentos e cinquenta e nove (57,9%) alunos apresentaram doenças respiratórias restritivas e 23 (2,4%), distúrbios obstrutivos, sendo que os indivíduos com sobrepeso e obesidade apresentaram 0,64 de probabilidade de desenvolver doenças respiratórias restritivas.Conclusão:observou-se uma elevada prevalência de adolescentes portugueses com sobrepeso e obesidade. Essas variáveis demonstraram uma relação estatisticamente significativa com o desenvolvimento de pré-hipertensão e hipertensão arterial e com doenças respiratórias restritivas.


Subject(s)
Adolescent , Child , Female , Humans , Male , Low Back Pain/complications , Overweight/epidemiology , Respiration Disorders/complications , Blood Glucose/analysis , Chronic Disease , Cross-Sectional Studies , Hypertension/blood , Hypertension/complications , Logistic Models , Obesity/complications , Obesity/epidemiology , Overweight/complications , Prevalence , Portugal/epidemiology , Prehypertension/blood , Prehypertension/complications , Risk Factors , Sedentary Behavior , Spirometry
14.
Rev. méd. Chile ; 143(8): 971-978, ago. 2015. tab
Article in Spanish | LILACS (Americas) | ID: lil-762661

ABSTRACT

Background: Interventions aiming to reduce obesity and sedentary behaviors in young adults could be a feasible and effective approach to prevent cardiovascular diseases. Aim: To evaluate the effect of a lifestyle-based intervention on reducing cardiovascular risk factors in university students. Material and Methods: Sixty university students aged 21 ± 1 years (n = 44 females) took part on a 17 weeks lifestyle intervention consisting in education about healthy lifestyles and physical training, during a curricular course about health promotion and healthy lifestyles. At baseline and at the end of the intervention participants completed a lifestyles questionnaire and provided fasting blood samples to quantify glucose and lipids profile. Results: After the intervention significant reductions in the prevalence of hyperglycemia (-10.0%), high blood pressure (-16.7%) and physical inactivity (-26.7%) were observed. Moreover, a significant reduction in body weight, waist circumference, blood pressure, total cholesterol, triglycerides and an increase in HDL cholesterol were observed after intervention. Conclusions: The implementation of an intervention to promote healthy lifestyles is an effective way of reducing cardiovascular risk factors in university students.


Subject(s)
Female , Humans , Male , Young Adult , Cardiovascular Diseases/prevention & control , Health Promotion/methods , Life Style , Alcohol Drinking/epidemiology , Alcohol Drinking/prevention & control , Health Education , Hyperglycemia/blood , Hyperglycemia/epidemiology , Hypertension/blood , Hypertension/epidemiology , Non-Randomized Controlled Trials as Topic , Risk Factors , Sedentary Behavior , Sex Factors , Students , Surveys and Questionnaires , Universities
15.
Einstein (Säo Paulo) ; 13(2): 202-208, Apr-Jun/2015. tab, graf
Article in English | LILACS (Americas) | ID: lil-751416

ABSTRACT

Objective To identify possible relations between serum uric acid levels and metabolic syndrome and its components in a population with cardiometabolic risk. Methods This cross-sectional study included 80 subjects (46 women), with mean age of 48±16 years, seen at the Cardiovascular Health Program. Results The prevalence of hyperuricemia and metabolic syndrome was 6.3% and 47.1%, respectively. Uric acid level was significantly higher in individuals with metabolic syndrome (5.1±1.6mg/dL), as compared to those with no syndrome or with pre-syndrome (3.9±1.2 and 4.1±1.3mg/dL, respectively; p<0.05). The uric acid levels were significantly higher in men presenting abdominal obesity, and among women with abdominal obesity, lower HDL-c levels and higher blood pressure (p<0.05). Conclusion Uric acid concentrations were positively related to the occurrence of metabolic syndrome and its components, and there were differences between genders. Our results indicate serum uric acid as a potential biomarker for patients with cardiometabolic risk. .


Objetivo Identificar as possíveis relações da concentração sérica de ácido úrico com a síndrome metabólica e seus componentes em uma população com risco cardiometabólico. Métodos Estudo transversal que incluiu 80 indivíduos (46 mulheres), com média de idade de 48±16 anos, atendidos pelo Programa de Atenção à Saúde Cardiovascular. Resultados As prevalências de hiperuricemia e de síndrome metabólica foram 6,3% e 47,1%, respectivamente. A concentração de ácido úrico foi significantemente maior entre os sujeitos com síndrome metabólica (5,1±1,6mg/dL), comparada a daqueles sem a síndrome ou com pré-síndrome (3,9±1,2 e 4,1±1,3mg/dL, respectivamente; p<0,05). A concentração de ácido úrico foi maior entre homens com obesidade abdominal, e entre mulheres com obesidade abdominal, menores concentrações de HDL-c e maior pressão arterial (p<0,05). Conclusão As concentrações de ácido úrico foram positivamente relacionadas com a ocorrência de síndrome metabólica, bem como de seus componentes, para os quais foram observadas diferenças entre os sexos. Nossos resultados indicam a importância do ácido úrico como biomarcador em pacientes com risco cardiometabólico. .


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Cardiovascular Diseases/blood , Hyperuricemia/blood , Metabolic Syndrome/blood , Uric Acid/blood , Body Mass Index , Biomarkers/blood , Blood Glucose/analysis , Brazil/epidemiology , Cross-Sectional Studies , Cardiovascular Diseases/complications , Cardiovascular Diseases/epidemiology , Cholesterol, HDL/blood , Hypertension/blood , Hyperuricemia/epidemiology , Metabolic Syndrome/epidemiology , Obesity, Abdominal , Prevalence , Risk Assessment , Sex Factors , Surveys and Questionnaires
16.
Säo Paulo med. j ; 133(2): 125-130, Mar-Apr/2015. tab
Article in English | LILACS (Americas) | ID: lil-746646

ABSTRACT

CONTEXT AND OBJECTIVE: The frequency of obesity at an early age may contribute to atherosclerosis and cardiovascular disease (CVD) in adults. This study measured the frequency of obesity and cardiovascular risk factors in children and adolescents aged 6 to 17 years. DESIGN AND SETTING: Cross-sectional study in a school located in a region of low income and socioeconomic status in Santa Rita do Sapucai, Minas Gerais, Brazil. METHODS: A total of 175 students were classified using body mass index (BMI) and their waist circumference, blood pressure, number of hours of sedentary behavior and school meals were evaluated. Serum concentrations of fasting blood glucose, total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL-C) and high-density lipoprotein (HDL-C) were analyzed. RESULTS: 37.2% of the students had BMI above the 85th percentile and had significantly lower age, higher prevalence of hypertension, higher serum TC, LDL-C and TG, and greater waist circumference than those with BMI below the 85th percentile. Hypertension was observed in 2.9% of the students; 5.1% presented impaired glucose tolerance, 40% had two risk factors for atherosclerosis and 26.9% had three risk factors. A sedentary lifestyle was significantly less prevalent among subjects with BMI above the 85th percentile and was significantly correlated with serum TC and LDL-C. The school meals were hypoglycemic, hyperproteic and hyperlipidemic. CONCLUSION: One third of the children and adolescents had weights greater than or equal to the age-adjusted weight, and this was associated with greater waist circumference, hypertension and prevalence of dyslipidemia. .


CONTEXTO E OBJETIVO: A frequência de obesidade em idade precoce pode contribuir para a aterosclerose e doença cardiovascular (DCV) em adultos. Este estudo mediu a frequência de obesidade e fatores de risco cardiovascular em crianças e adolescentes com idades entre 6 e 17 anos. TIPO DE ESTUDO E LOCAL: Estudo transversal em escola localizada numa região de baixa renda e baixo nível socioeconômico em Santa Rita do Sapucaí, Minas Gerais, Brasil. MÉTODOS: Um total de 175 alunos foi classificado pelo índice de massa corporal (IMC) e foram aferidas circunferência da cintura, pressão arterial, horas de sedentarismo e alimentação escolar. Realizaram-se dosagens séricas de glicemia de jejum, colesterol total (CT), triglicerídeos (TG), lipoproteína de baixa densidade (LDL-C) e lipoproteína de alta densidade (HDL-C). RESULTADOS: 37,2% dos alunos tinham IMC acima do percentil 85 e apresentaram idade significativamente menor, prevalência mais alta de hipertensão, CT sérico, LDL-C e TG elevados e maior circunferência abdominal em comparação com aqueles com IMC abaixo do percentil 85. Observou-se hipertensão em 2,9% dos estudantes, 5,1% apresentavam tolerância à glicose diminuída, 40% tinham dois fatores de risco para aterosclerose, e 26,9% tinham três fatores de risco. O sedentarismo foi significativamente menor em indivíduos com IMC acima do percentil 85 e foi significativamente correlacionado com as concentrações séricas de CT e LDL-C. A merenda escolar estava hipoglicêmica, hiperproteica e hiperlipídica. CONCLUSÃO: Um terço das crianças e adolescentes avaliados tinham pesos iguais ou superiores ao peso ajustado à idade, e isso foi associado a maiores circunferência abdominal, hipertensão e prevalência de dislipidemia. .


Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Male , Dyslipidemias/epidemiology , Hypertension/epidemiology , Nutritional Status/physiology , Obesity/epidemiology , Poverty/statistics & numerical data , Sedentary Behavior , Body Mass Index , Blood Glucose/analysis , Blood Pressure/physiology , Brazil/epidemiology , Cross-Sectional Studies , Cardiovascular Diseases/etiology , Cholesterol/blood , Dyslipidemias/blood , Hypertension/blood , Obesity/blood , Risk Factors , Socioeconomic Factors , Waist Circumference/physiology
17.
Rev. Esc. Enferm. USP ; 49(1): 69-75, Jan-Feb/2015. graf
Article in English | LILACS (Americas) | ID: lil-742066

ABSTRACT

OBJECTIVE To evaluate the effect of using antihypertensive classes of drugs of the calcium channel antagonists and inhibitors of angiotensin-converting enzyme in plasma concentrations of hydrogen sulfide and nitric oxide in patients with hypertension. METHODS Cross-sectional study with quantitative approach conducted with hypertensive patients in use of antihypertensive classes of drugs: angiotensin-converting enzyme inhibitors or calcium channel antagonists. RESULTS It was found that the concentration of plasma nitric oxide was significantly higher in hypertensive patients that were in use of angiotensin-converting enzyme inhibitors (p<0.03) and the hydrogen sulphide concentration was significantly higher in hypertensive plasma in use of calcium channel antagonists (p<0.002). CONCLUSION The findings suggest that these medications have as additional action mechanism the improvement of endothelial dysfunction by elevate plasma levels of vasodilatory substances. .


OBJETIVO Evaluar el efecto del uso de antihipertensivos pertenecientes a las clases medicamentosas antagonistas de canales de calcio e inhibidores de la enzima convertidora de angiotensina en las concentraciones plasmáticas de ácido sulfhídrico y óxido nítrico en portadores de hipertensión arterial sistémica. MÉTODO Estudio transversal con abordaje cuantitativo realizado con hipertensos que toman antihipertensivos de las clases de inhibidores de la enzima convertidora de angiotensina o antagonistas de los canales de calcio. RESULTADOS Se verificó que la concentración de óxido nítrico plasmático fue significativamente mayor en hipertensos que estaban usando inhibidores de la enzima convertidora de angiotensina (p<0.03) y que la concentración de ácido sulfhídrico plasmático fue significativamente mayor en hipertensos en uso de antagonistas de los canales de calcio (p<0.002). CONCLUSIÓN Los hallazgos sugieren que dichos fármacos tienen como mecanismo de acción adicional la mejora de la disfunción endotelial al elevar los niveles plasmáticos de sustancias vasodilatadoras. .


OBJETIVO Avaliar o efeito do uso de anti-hipertensivos pertencentes às classes medicamentosas antagonistas de canais de cálcio e inibidores da enzima conversora de angiotensina nas concentrações plasmáticas de ácido sulfídrico e óxido nítrico em portadores de hipertensão arterial sistêmica. MÉTODO Estudo transversal com abordagem quantitativa realizado com hipertensos em uso de anti-hipertensivos das classes inibidores da enzima conversora de angiotensina ou antagonistas dos canais de cálcio. RESULTADOS Verificou-se que a concentração de óxido nítrico plasmático foi significativamente maior em hipertensos que estavam em uso de inibidores da enzima conversora de angiotensina (p<0.03) e que a concentração de ácido sulfídrico plasmático foi significativamente maior em hipertensos em uso de antagonistas dos canais de cálcio (p<0.002). CONCLUSÃO Os achados sugerem que essas medicações possuem como mecanismo de ação adicional a melhora da disfunção endotelial por elevar os níveis plasmáticos de substâncias vasodilatadoras. .


Subject(s)
Female , Humans , Male , Middle Aged , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Antihypertensive Agents/therapeutic use , Calcium Channel Blockers/therapeutic use , Hydrogen Sulfide/blood , Hypertension/blood , Hypertension/drug therapy , Nitric Oxide/blood , Cross-Sectional Studies
18.
Rev. gaúch. enferm ; 36(spe): 55-61, 2015. tab, graf
Article in Portuguese | LILACS (Americas) | ID: lil-778462

ABSTRACT

RESUMO Objetivo Investigar a associação entre síndromes hipertensivas e hemorragia pós-parto (HPP) através da mensuração do nível de hemoglobina (Hb) e hematócrito (Ht) em mulheres atendidas em um hospital universitário do interior paulista. Métodos Estudo epidemiológico, seccional, realizado com 100 primíparas, no período entre agosto e dezembro de 2012. Realizaram-se dosagens de hemoglobina e hematócrito na admissão da parturiente e 48 horas pós-parto. Consideraram-se como HPP valores ≥ queda de 10% do valor do hematócrito da admissão. A HPP foi considerada variável dependente, e as variáveis independentes consideradas foram as socioeconômicas, patológicas, assistência pré-natal, admissão, parto e assistência. Utilizaram-se análises estatísticas uni e bivariadas, com nível de significância de 5%. Resultados As síndromes hipertensivas foram as doenças mais frequentes; houve presença de correlação positiva entre a queda nos níveis de Ht e Hb e não se identificou uma associação entre síndromes hipertensivas e HPP. Conclusões Primíparas portadoras de síndromes hipertensivas não apresentaram maior probabilidade de HPP.


RESUMEN Objetivos Investigar la asociación entre síndromes hipertensivas y hemorragia posparto (HHP), midiendo el nivel de hemoglobina y hematocrito entre mujeres que acuden a un hospital universitario de una provincia en el interior de São Paulo. Métodos Estudio epidemiologico, seccional o en corte, realizado con 100 primiparas, en el período comprendido entre agosto y diciembre de 2012. Fue realizado dosis de hemoglobina y hematocrito, en la admisión y 48 horas después del parto. Consideró como (HPP) valores / la caída del 10% del valor de lo hematocrito de la admisión. (HPP) fue considerada variable dependiente y socioeconómicas, patológicas, asistencia prenatal, admisión, parto y evolución y asistencia, independientes. Se utilizaron estadísticas univariadas y bivariadas, con nivel de significación del 5%. Resultados Síndromes hipertensivas fueron la enfermedad más frecuente; hubo presencia de correlación positiva entre la caída en los niveles del Ht y Hb y no encontraron una asociación entre las síndromes hipertensivas y HPP. Conclusiones primíparas con síndromes hipertensivas no fueron más propensas a PPH.


ABSTRACT Objective To investigate the association between hypertensive disorders and postpartum hemorrhage (PPH), by measuring the hemoglobin (Hb) and hematocrits (Ht) levels among women attending a university hospital in the Sao Paulo countryside. Method Epidemiological, cross-sectional study, conducted with 100 primiparous, in the period between August and December 2012. Hemoglobin and hematocrit dosages were tested upon admission of the mother and 48 hours after delivery. Values ≥ 10% drop in the hematocrit numbers when compared to those shown in admission, were considered as HPP. HPP was considered the dependent variable and the independent variables were socioeconomic, pathological, prenatal care, admission, delivery and assistance. Univariate and bivariate statistics were used, with 5% significance level. Results The hypertensive disorders were the most commonly occurring disorders; there was the presence of positive correlation between the fall in Ht and Hb levels and there was no association found between hypertensive disorders and HPP. Conclusions Primiparous not suffering from hypertensive disorders were more likely to present PPH.


Subject(s)
Female , Humans , Young Adult , Hypertension/complications , Postpartum Hemorrhage/epidemiology , Postpartum Hemorrhage/etiology , Cross-Sectional Studies , Hypertension/blood , Postpartum Hemorrhage/blood
19.
Hist. ciênc. saúde-Manguinhos ; 21(4): 1215-1234, Oct-Dec/2014.
Article in Portuguese | LILACS (Americas) | ID: lil-732522

ABSTRACT

Por meio da análise de obras acadêmicas produzidas por filósofos naturais no século XVIII, pretendemos discutir algumas ideias recorrentes acerca da Grande Cadeia do Ser. Para tal, analisamos as relações entre filosofia e teologia natural no período. Reavaliamos ainda alguns elementos da Cadeia do Ser, investigando autores que discorreram sobre o tema em seus escritos. Por fim, elencamos um ponto específico das discussões setecentistas sobre a scala naturae, qual seja, as diversas e nem sempre convergentes ideias de que, a partir de características específicas, haveria diferenças entre os homens, bem como seu consequente lugar na Cadeia do Ser.


This examination of academic works produced by eighteenth-century natural philosophers discusses some recurring ideas about the Chain of Being. To this end, the article analyzes the relations between natural philosophy and theology during the period. It also re-evaluates some elements of the Chain of Being through an exploration of authors who addressed the topic in their writings. Lastly, it identifies a specific element within eighteenth-century discussions of scala naturae, to wit, the various and not always convergent ideas about whether there are differences between humans based on specific characteristics and, consequently, about the places they occupy in the chain of being.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Hyperlipidemias/blood , Ubiquinone/analogs & derivatives , Alcohol Drinking/adverse effects , Amidines/pharmacology , Antidotes/metabolism , Body Mass Index , Coronary Disease/blood , Hypertension/blood , Lipid Peroxidation/drug effects , Lipoxygenase/pharmacology , Liver Diseases/blood , Oxidation-Reduction/drug effects , Oxidative Stress/drug effects , Oxidative Stress/physiology , Regression Analysis , Risk Factors , Spectrophotometry , Smoking/adverse effects , Triglycerides/blood , Ubiquinone/blood , Ubiquinone/drug effects
20.
Medicina (B.Aires) ; 74(6): 462-471, dic. 2014. graf, tab
Article in Spanish | LILACS (Americas) | ID: lil-750490

ABSTRACT

Si bien se conoce que existe una asociación entre los niveles elevados de ácido úrico y la preeclampsia, el debate sobre su aplicación clínica aún está abierto. Nuestro objetivo fue estudiar la utilidad del dosaje periódico del ácido úrico sérico durante el embarazo para identificar gestantes con mayor riesgo de desarrollar preeclampsia. Realizamos un estudio retrospectivo en gestantes primíparas: 79 normotensas y 79 con preeclampsia atendidas en el Hospital Nacional Posadas durante el año 2010. Se analizaron los niveles séricos de ácido úrico, creatinina y urea, y los datos de proteinuria de las historias clínicas de las mujeres embarazadas. Los niveles de ácido úrico fueron similares en ambos grupos durante la primera mitad de la gestación. Sin embargo, a partir de la semana 20, el ácido úrico se incrementó 1.5 veces en gestantes preeclámpticas, sin cambios en la uremia y creatininemia, descartándose así el compromiso renal. Además, encontramos que niveles más altos de ácido úrico se correlacionaban con bajo peso del recién nacido. También vimos que las gestantes con antecedentes familiares de hipertensión eran más propensas a desarrollar esta condición. Por otro lado, no observamos una relación directa ni con el sexo fetal ni con el tiempo de aparición de los síntomas clínicos. Estos hallazgos sugieren que los cambios en las concentraciones de ácido úrico se deberían a alteraciones en los estadios iniciales de la preeclampsia. Por ello, la monitorización de los niveles del mismo durante el embarazo podría contribuir al abordaje precoz de este desorden gestacional.


It is well known that preeclampsia is associated to high uric acid levels, but the clinical assessment of this relationship is still under consideration. Our research was to evaluate if periodic doses of uric acid during pregnancy might help to identify a high risk group prior to the onset of preeclampsia. We conducted a retrospective investigation in 79 primary gestates with normal blood pressure and 79 women with preeclampsia who were assisted at Hospital Nacional Posadas during 2010. Serum uric acid levels, creatininemia, uremia, and proteinuria data from the clinical records of the pregnant women were considered. Uric acid levels were similar in both groups during the first half of gestation. However, as of the 20th week, uric acid increased 1.5-times in preeclamptic women with no changes in creatinine and urea, confirming that these patients had no renal complications. Furthermore, we noted that higher levels of uric acid correlated with low birth weight. We also observed that pregnant women with a family history of hypertension were more likely to develop this condition. Moreover, we did not find a direct relationship with the fetal sex or the appearance of clinical symptoms. The analytical evidence suggests that changes in uric acid concentrations may be due to metabolic alterations at the initial stages of preeclampsia. Therefore, we propose that monitoring levels of uric acid during pregnancy might contribute to the early control of this condition.


Subject(s)
Adult , Female , Humans , Pregnancy , Young Adult , Birth Weight , Hypertension/complications , Pre-Eclampsia/etiology , Uric Acid/blood , Creatinine/blood , Early Diagnosis , Hypertension/blood , Infant, Low Birth Weight/blood , Parity , Prognosis , Pre-Eclampsia/diagnosis , Pre-Eclampsia/prevention & control , Pregnancy Trimester, Second/blood , Retrospective Studies , Risk Factors , Urea/blood
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