Search Results
Results 351 - 400 of 1197
< 3 4 5 6 7 8 9 10 11 12 13 >
Lurbe Empar - - 2005
Masked hypertension, an elevated daytime ambulatory blood pressure in the presence of a normal office blood pressure, confers an increased cardiovascular risk to adults. We investigated the prevalence, persistence, and clinical significance of masked hypertension in children and adolescents. We enrolled 592 youths (6 to 18 years old). Youths with ...
Palatini Paolo - - 2005
OBJECTIVE: Microalbuminuria (MA) is a marker of adverse outcome in hypertension. The aim of this study was to investigate the association of MA with cardiovascular risk factors and glomerular hyperfiltration in the early stage of hypertension and to assess its predictive value for the development of sustained hypertension requiring antihypertensive ...
Pierce Thomas W - - 2005
A regression-based meta-analysis examined the degree to which the effects of a family history of hypertension on cardiovascular reactivity are moderated by the magnitude of cardiovascular responses elicited in challenge/task conditions. Mean change scores for negative family history groups were regressed on mean change scores for positive family history groups. ...
Maver Jerica - - 2004
This study was designed to address alterations in autonomic nervous system activity in normotensive subjects with a family history of hypertension. We compared the autonomic nervous system activity in 59 normotensives with a family history of hypertension and 46 normotensives with no family history of hypertension. Skin blood flow was ...
Fortuño Ana - - 2004
OBJECTIVE: Oxidative stress has been implicated in the pathogenesis of hypertension and its complications through alterations in nitric oxide (NO) metabolism. This study was designed to investigate whether a relationship exists between phagocytic nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-dependent superoxide anion (*O2-) production and NO generation in patients with essential ...
Stefanidis Ioannis - - 2004
In patients on chronic hemodialysis hypotensive episodes are frequently encountered during the course of treatment and the prevalence of atherosclerosis is increased. Endothelin-1 (ET-1), an endothelium-derived peptide with vasoconstrictive and mitogenic effects on smooth muscles, is involved in vascular tone regulation and in the pathogenesis of atherosclerosis. The aim of ...
Kyriakides Zenon - - 2004
The importance of endothelin-1 in the pathophysiology of essential hypertension is unclear. We therefore examined whether there is a differential effect of endothelin-A antagonism on vasodilation and coronary artery compliance in hypertensive compared to normotensive patients. We examined atherosclerotic non-stenotic arteries from 18 non-diabetic, 10 normotensive patients and eight hypertensive ...
Lambert Elisabeth Annie - - 2004
BACKGROUND: The aim of this study was to examine the influences of genetic predisposition to hypertension and of age on the sympathetic nervous system response to the cold pressor test (CPT). METHODS: A total of 32 young subjects (aged 27 +/- 2 years) were studied: 11 normotensive subjects without a ...
Pierdomenico Sante D - - 2004
BACKGROUND: The prognostic value of white coat hypertension (WCH) in uncomplicated patients with mild hypertension is not yet completely clear. We investigated cardiovascular outcomes in patients with mild hypertension and without left ventricular hypertrophy, diabetes mellitus, and associated cardiovascular and renal disease, with sustained hypertension (SH) and WCH. METHODS: The ...
Oke, DA; Department of ...
In a 6 month prospective questionnaire study of 101 consecutive newly referred hypertensive patients and 86 normotensive volunteers, the relationship of erectile dysfunction and hypertension in these patients was studied using a modified international index of erectile function (IIEF). The mean age of the hypertensive subjects was 56.2±45 years and ...
Hozawa Atsushi - - 2004
To examine the relationship between 8-isoprostane and blood pressure, we measured plasma 8-isoprostane concentration and home blood pressure levels in an elderly Japanese population. Our study population comprised 569 subjects aged 70 years and over who were not receiving antihypertensive medication. On the basis of their blood pressure values, the ...
Cheung Bernard M Y - - 2004
OBJECTIVES: Urotensin II is the most potent vasoconstrictor known. Its role in hypertension has not been investigated. Here, we studied the plasma levels in hypertensive and normotensive human subjects. DESIGN: A cross-sectional case-control study. SETTING: Hypertension clinic and research clinic of a university teaching hospital. PARTICIPANTS: Sixty-two hypertensive outpatient subjects ...
Wirtz Petra H - - 2004
BACKGROUND: Essential hypertension ranks among the strongest cardiovascular risk factors. Cytokine production by monocytes plays a key role in atherosclerosis development and acute coronary syndromes. We investigated whether stimulated monocyte cytokine release and its inhibition by glucocorticoids would differ between hypertensive and normotensive subjects. METHODS: Study participants were 222 middle-aged ...
Rayner Brian L - - 2004
BACKGROUND: The assessment of target organ damage is important in the evaluation of a hypertensive patient as it provides information on the severity of the hypertension and the cardiovascular risk assessment. The aim of our study was to determine the usefulness of the chest radiograph in the assessment of target ...
Ghanbarian Arash - - 2004
The purpose of this study was to describe blood pressure values in Iranian adults with electrocardiogram (ECG) evidence of a myocardial infarction (MI). High blood pressure is a risk factor, and an ECG can be diagnostic of coronary artery disease. In recent studies the role of pulse pressure in predicting ...
Endemann Dierk H - - 2004
We hypothesized that resistance arteries from diabetic patients with controlled hypertension have less remodeling than vessels from untreated hypertensive subjects. Eight normotensive subjects (aged 44+/-3 years, 3 men; values are mean+/-SEM), 19 untreated hypertensive subjects (46+/-2 years, 9 men), and 23 hypertensive subjects with type 2 diabetes mellitus under antihypertensive ...
Grewen Karen M - - 2004
OBJECTIVE: We investigated whether parental history of hypertension (FH+) enhances the impact of depressed mood, indexed by Beck Depression Inventory (BDI), on ambulatory blood pressure (ABP). METHODS: Twenty-four-hour ABP, urinary norepinephrine (NE), and cortisol were obtained in 314 unmedicated normotensive and hypertensive men and women (age 18-64 years) who also ...
Maver Jerica - - 2004
Autonomic nervous system and microvascular alterations at pre-hypertensive stage of hypertension have still not been fully elucidated. We aimed at addressing central and local influences on microvascular reactivity at pre-hypertensive stage of hypertension. To that end, we studied microvascular reactivity in 59 normotensives with a family history of hypertension and ...
Andersson Ove K - - 2004
Blood pressure elevation in young age is associated with a risk of developing hypertension. However, not all subjects will progress to clinical hypertensives in need of pharmacological therapy. In younger subjects, there is essential to find clinical or experimental characteristics to predict the future risk of hypertension. In the present ...
Shin Tae Won - - 2003
People with hypertension are commonly warned to check with a physician before using a hot tub, but there is little literature on which to base this advice. We compared symptoms, heart rate, and systolic and diastolic blood pressure in response to 10 minutes of hot-tub immersion in a group of ...
Ghosh Arijit - - 2003
In this study, the variation of blood pressure in young normotensive medical students has been recorded in winter and summer. Daytime blood pressure of young normotensive medical students has been measured in supine position. It has been found that both the systolic and diastolic pressure increases in low ambient temperature. ...
Schrier Robert W - - 2003
BACKGROUND: Hypertension in autosomal-dominant polycystic kidney disease (ADPKD) patients is associated with more rapid progression of renal disease and a high incidence of left ventricular hypertrophy (LVH). The present study was undertaken to examine the role of parental hypertension in the occurrence of hypertension in 475 ADPKD offspring. METHODS: Adult ...
Mozaffari Mahmood S - - 2003
Systemic hypertension and type 2 diabetes mellitus are major risk factors for myocardial infarction. Yet, glucose intolerance, a prelude stage to type 2 diabetes, is associated with reduced infarct size. Since chronic hypertension adversely affects the myocardium, we tested the hypothesis that the coexistence of systemic hypertension and glucose intolerance ...
Magri J - - 2003
OBJECTIVES: To identify any effects that lead, calcium, magnesium, and zinc may have on the development of gestational hypertension. METHODS: Third-trimester 110 normotensive and 33 gestational hypertension cases were assayed for various metal levels, using standard techniques, including atomic absorption spectrometry. RESULTS: Gestational hypertension cases showed significantly higher blood lead ...
Irmak M Kemal - - 2003
The neural crest origin of the aortopulmonary septum has led us to investigate the septum for a special function, and we designed the present study to assess the alteration, if any, in the dimensions of the aortopulmonary septum in hypertension. The dimensions of the aortopulmonary septum were measured by echocardiography ...
Eisner Alvin - - 2003
The study had two main purposes: (1) to determine whether the foveal visual sensitivities of people treated for high blood pressure (vascular hypertension) differ from the sensitivities of people who have not been diagnosed with high blood pressure and (2) to understand how visual adaptation is related to standard measures ...
Takeda Yutaka - - 2003
BACKGROUND: Left ventricular hypertrophy sometimes develops in normotensive people with a genetic background for hypertension. The aim of this case-control study was to test the hypothesis that a high-amplitude QRS complex (high-QRS) is indicative of risk of eventual hypertension. METHODS: We reviewed medical charts that included blood pressure data obtained ...
Stewart Jesse C - - 2003
BACKGROUND: For this study we investigated the relationship between hypertension, pain reports, and hypertension awareness in a large and diverse sample of men and women. METHOD: Data collected during the Third National Health and Nutrition Examination Survey (NHANES III) were examined for reports of pain at four body sites (chest, ...
Mancia Giuseppe - - 2003
Target organ damage in hypertensive patients is related to their increased average blood pressure and greater 24-hour blood pressure variability. Whether the rate of blood pressure changes is also greater in hypertension, producing a greater stress on arterial walls, is not known, however. Our study aimed at addressing this issue ...
Chironi Gilles - - 2003
OBJECTIVE: We aimed to analyze the influence of hypertension on early large artery remodeling. METHODS AND RESULTS: Carotid intima-media thickness (IMT) and diameter were measured ultrasonographically in 394 normotensive subjects and 327 untreated and 528 treated hypertensive patients. IMT and diameter were increased in hypertensive groups, treated or untreated, compared ...
Dohi Yasuaki - - 2003
The present study was designed to test the hypothesis that circulating levels of thrombomodulin are elevated in patients with hypertension in proportion to the severity of the vascular damage. A cross-sectional study was carried out using a population consisting of 96 patients with essential hypertension without clinically evident cardiovascular disease ...
Salako B L - - 2003
Assessment of control of hypertension by some authors has revealed that optimal blood pressure control is not yet achieved in many of those that are on treatment. Resistant hypertension, plays a part as one of the factors responsible for this poor control state. Because of the peculiar problems posed by ...
Tamama Kenichi - - 2003
OBJECTIVE: Serum hepatocyte growth factor (HGF) is associated with blood pressure. We investigated whether the serum HGF level differs between hypertensive and normotensive postmenopausal women (PMW) and whether hormone replacement therapy (HRT) alters the serum HGF level and blood pressure in hypertensive and normotensive PMW. DESIGN: Prospective observational study. METHODS: ...
Delgado M C - - 2003
The aim of this study is to determine whether red blood cell K(+) content (RBC(Ki)) is associated with blood pressure levels and, if so, could RBC(Ki) be a marker of potassium changes in other cells involved in blood pressure regulation. The study was performed on 50 untreated hypertensives, 32 of ...
Redón Josep - - 2003
The objective was to study oxidative status, antioxidant activities, and reactive oxygen species byproducts in whole blood and mononuclear peripherals cells and their relationship with blood pressure. Sixty-six hypertensive patients and 16 normotensive volunteers as a control group were studied. In both, whole blood and peripheral mononuclear cells oxidized/reduced glutathione ...
Yum M K - - 2003
BACKGROUND: We tried to determine whether the severity of additional mean arterial pressure (MAP) elevation after endotracheal intubation during general anesthesia could be predicted with preanesthetic recurrence quantification analysis of heart rates in hypertensive and normotensive patients. METHODS: Twenty-four newly diagnosed hypertensive patients and 34 normotensive patients were included. We ...
Kosugi Takuo - - 2003
OBJECTIVES: In human hypertension, the response of phospholipase C (PLC) to stimuli is enhanced in signal transduction where receptors are coupled to pertussis toxin-sensitive G protein. We investigated PLC activity and its role in human hypertension. METHODS AND RESULTS: Skin fibroblasts were cultured from 15 normotensives subjects (53 +/- 4 ...
Tao Jun - - 2003
OBJECTIVE: To investigate elastic changes of the radial artery, a medium-sized muscular peripheral conduit artery, in patients with borderline systolic hypertension. METHODS: Using a non-invasive high-resolution echo-tracking device coupled to a photoplethysmography (Finapres system) allowing simultaneous arterial diameter and finger blood pressure monitoring, we measured radial artery elastic parameters of ...
Denton Kate M - - 2003
Preexisting chronic hypertension complicates up to 5% of pregnancies and is associated with an increased risk of low-birth-weight babies. Studies suggest that an adverse intrauterine environment leading to low birth weight is linked to an increased risk of cardiovascular disease, including hypertension, in the adult. In this study, the blood ...
Antonios T F T - - 2003
BACKGROUND: Rarefaction of skin capillaries in people with intermittent borderline essential hypertension suggests a primary or an early abnormality that may antedate the onset of sustained hypertension. OBJECTIVE: To compare skin capillary density in subjects with and without a family history of essential hypertension. SUBJECTS: 21 normotensive individuals, one or ...
Deepa R - - 2003
AIM OF THE STUDY: The aim of the present study was to assess the applicability of the rule of halves in an urban population in South India. METHODS: The Chennai Urban Population Study (CUPS) is an ongoing population based study involving two residential colonies representing a middle and lower socio-economic ...
Pitiriga V Ch - - 2003
Conflicting data exist regarding the relationship between Chlamydophila pneunoniae (C. pneumoniae) and hypertension. In this study, both C. pneumoniae IgG and IgA titres and Epstein-Barr virus antibody levels were measured in 146 sustained hypertensives defined by 24 h ambulatory blood pressure monitoring (ABPM) and 54 normotensives. C. pneumoniae antibodies were ...
Andersen Ulrik B - - 2003
INTRODUCTION: Insulin resistance has been implicated in the pathogenesis of essential hypertension. Elevated blood pressure during physical exercise is a more powerful predictor of future hypertension than resting blood pressure. We have therefore studied the relationship between insulin resistance and blood pressure response to exercise in strongly hypertension-prone subjects. MATERIAL: ...
Shanthirani C S - - 2003
OBJECTIVE: Hypertension is a major public health problem in developing countries. There is however very little population based data particularly in South India. The aim of this study is to determine the prevalence of hypertension and its associated risk factors in an urban South Indian population at Chennai. METHODS: The ...
Höieggen Aud - - 2003
Serum uric acid (SUA) but also hemorheological parameters such as hematocrit (Hct) and whole blood viscosity (WBV) are markers of cardiovascular risk. Increased blood cell volume is one of the known causes of hyperuricemia. We therefore aimed to investigate the relationship between SUA and hemorheology in untreated borderline hypertensive young ...
Diamantopoulos E J - - 2003
The objective of this study was to investigate the association between human leukocyte antigens (HLA) phenotypes and cardiovascular remodelling, as expressed by left ventricular mass (LVM) and carotid intima-media thickness (IMT), in hypertensives. We examined 153 subjects with arterial hypertension and 61 normotensive controls living in the greater Athens area. ...
Makris Thomas K - - 2003
It has been previously shown that essential hypertension (EH) is associated with coagulation-fibrinolytic balance disorders. Our study was conducted in order to investigate disturbances in coagulation-fibrinolysis in offsprings of hypertensive parents. Two groups were studied: 44 healthy normotensive individuals (17 male, 27 female, age range 12-22 years) with a documented ...
Hitzenberger G - - 2003
This is the first large-scale, countrywide study evaluating blood pressure levels in treated hypertensive patients based on home blood pressure monitoring. The study was conducted all over Austria by 166 physicians enrolling a total of 1303 patients each taking at least 30 home blood pressure readings (a total of 39,000 ...
Ike S O - - 2003
INTRODUCTION AND OBJECTIVE: Patients with essential hypertension are predisposed to impaired left ventricular relaxation, and consequently, diastolic dysfunction. Because diastolic dysfunction is an early marker of the pathological effects of hypertension on the heart, evaluating the relationship between the development of diastolic dysfunction and the level of blood pressure becomes ...
Cugini P - - 2002
PURPOSE: The present study investigated the blood pressure (BP) load (L), namely Baric Impact (BI), in normotensives with and without endothelial dysfunction (ED). The aim was to detect baric differences supporting the thesis that the ED is associated with vasopressant effects that are responsible for a paraphysiological condition of higher ...
< 3 4 5 6 7 8 9 10 11 12 13 >