Search Results
Results 301 - 350 of 1211
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Kotchen Theodore A - - 2008
BACKGROUND: Blood pressure levels and the prevalence of hypertension are related to adiposity. We evaluated the relationship of adiposity to blood pressure in normotensive and untreated hypertensive African Americans-an ethnic group with a high prevalence of hypertension and obesity. METHODS: Outpatient measurements were obtained in 1,858 normotensive and 1,998 hypertensive ...
Goldstein Iris B - - 2008
BACKGROUND: Although family history is a major predictor of hypertension, other risk factors have been linked to elevated blood pressure (BP). This study explored the relationship of norepinephrine (NE), insulin resistance and lipids to family history of hypertension, and attempted to determine the combined effects of family history and these ...
Imatoh Takuya - - 2008
Adiponectin is a recently discovered protein that seems to be exclusively secreted by adipocytes and is the most abundant adipose tissue-derived protein. While some recent studies have demonstrated an association between adiponectin levels and hypertension, these studies were cross-sectional in design, and the results have been inconsistent. Therefore we performed ...
Papadopoulos D P - - 2008
Recent evidence demonstrate that masked hypertension (MH) is a significant predictor of cardiovascular disease, while, elevated levels of circulating antibodies against endothelial cell surface antigens (antiendothelial cell antibodies - AECA) seem to play an important role at the early stages of atherosclerosis process and of borderline hypertension as well. Aim ...
Saltiki Katerina - - 2008
Overt hypothyroidism has been associated with arterial hypertension and increased arterial stiffness. Results in euthyroid individuals have been conflicting. We investigated associations of thyroid function with systolic (SAP) and diastolic (DAP) arterial pressure in euthyroid subjects. 311 euthyroid individuals (185 women, mean age 43.9 +/- 9) without a history of ...
Gupta Ravi - - 2008
AIMS: The present study was conducted to assess the effects of duration of hypertension, systolic hypertension, diastolic hypertension, drug compliance and class-of-drug on cognitive functions. METHODS AND RESULTS: A cohort of young hypertensive subjects was recruited after obtaining informed consent. Subjects with confounding factors, e.g., substance use, neurological disorders, endocrinopathies, ...
Horváth Patrícia - - 2008
BACKGROUND: According to several reports, some cardiovascular signs of hypertension (left ventricular [LV] hypertrophy, impaired diastolic filling) can be found in the normotensive offspring of hypertensive parents. It is also well known that regular physical exercise decreases the risk of hypertension. AIM: The aim of the present study is to ...
Yanai Hidekatsu - - 2008
Astaxanthin is a biological antioxidant naturally found in a wide variety of aquatic living organisms, and has shown various pharmacological activities, such as anti-inflammatory and antidiabetic activities. A recent study reported that the administration of astaxanthin induced a significant reduction in blood pressure and delayed the incidence of stroke in ...
Matuszek Maria A - - 2008
1. Differences in blood lipids, glucose, insulin, amylin, adrenocorticotropic hormone (ACTH), cortisol, aldosterone, angiotensin II, metabolites of nitric oxide (nitrate, nitrite), asymmetric dimethyl arginine, endothelial leucocyte adhesion molecule-1, vascular cell adhesion molecule-1, C-reactive protein, homocysteine and oxidative status (urate, vitamin A, vitamin E, beta-carotene and total anti-oxidant capacity) were investigated ...
Sae-Sia Wipa - - 2007
OBJECTIVE: To test the effect of clinically relevant duration of pressure loading (2 h) on sacral skin blood flow (SBF) and skin temperature in subjects with spinal cord injury (SCI) within 24 to 96 hours after injury compared with subjects with acute orthopedic trauma and healthy subjects. DESIGN: Three-group, repeated-measures, ...
McIntyre David - - 2008
Modulation of simple reaction time over the cardiac cycle, which is likely to be mediated by activation of arterial baroreceptors, may be moderated by individual difference factors that affect baroreceptor activation, such as risk for hypertension. This study examined arterial baroreceptor effects on simple reaction times by presenting vibrotactile stimuli ...
Rampal L - - 2008
STUDY DESIGN: A cross-sectional study was conducted in all states of Malaysia to determine the prevalence, awareness, treatment and control of hypertension. A stratified two-stage cluster sampling design with proportional allocation was used. METHODS: Trained nurses obtained two blood pressure measurements from each subject. Hypertension was defined as mean systolic ...
Sossai P - - 2007
This study summarizes the results of an epidemiological investigation carried out on the occasion of the Second World Hypertension Day (May 13, 2006) in the city of Matelica in the Region of the Marches, Central Italy. In all, 518 subjects (298 males, average age 52.3 years; 220 females, average age ...
O'Donovan, D. G.
The definitive version is available at www.blackwell-synergy.com
Verberk Willem J - - 2007
Masked hypertension (blood pressure that is normal in the physicians' office but elevated elsewhere) is a common phenomenon as prevalence among studies varies from 8 to 45% and is seen at all ages. large discrepancies, however, exist between studies that have dealt with masked hypertension. It is of high clinical ...
Imatoh Takuya - - 2007
The object of this study is to assess whether elevated hsCRP levels are independently related to hypertension in non-obese Japanese males. This cross-sectional study comprised 86 hypertensive and 109 normotensive subjects. We defined hypertension as a systolic blood pressure >/=140 mmHg and/or a diastolic blood pressure >/=90 mmHg and/or taking ...
Grassi Guido - - 2007
Patients with hypertension exhibit an increased sympathetic activity. No information exists as to whether this is the case in normotensive individuals in whom there is an increased ambulatory blood pressure, a condition termed "masked" hypertension. We studied 18 middle-aged subjects with masked hypertension in whom we measured muscle sympathetic nerve ...
Ishikawa Shizukiyo - - 2007
Few studies have reported on risk factors by blood pressure categories based on antihypertensive treatment in the general population. We examined the associations between blood pressure categories and other risk factors in Japan. Cross-sectional study, multicenter population-based study was designed. A total of 11,302 men and women were eligible. Data ...
Esparza C M - - 2007
OBJECTIVE: To assess the association between inner ear dysfunction and retinal vascular changes related to systemic arterial hypertension. DESIGN: A comparative, cross-sectional and observational study. SETTING: Primary care. MAIN OUTCOMES MEASURES: Hearing and vestibular symptoms evaluated by a standardized questionnaire; cochlear function evaluated by audiometry and distortion product otoacoustic emissions; ...
SEKI, Yoshinobu
Background. Cyclosporin-induced hypertension is considered to be a result of elevated plasma endothelin-1 (ET-1) oo sodium retention. Methods. To evaluate the function and the degree of vascular damage of endothelial cells in cyclosporininduced hypertension after allogeneic bone marrow transplantation (BMT), we continuously measured blood pressure by ambulatory blood pressure monitoring ...
Skov Karin K Department of Pharmacology, University of Aarhus, Aarhus, Denmark. - - 2007
Offspring of hypertensive parents are at high risk of future hypertension and subsequent cardiovascular diseases. We investigated whether early treatment with an angiotensin-receptor blocker in young normotensive offspring of hypertensive parents persistently lowered blood pressure after treatment withdrawal, a possibility supported by animal studies. The study is an investigator-initiated, double-blind ...
Edwards Louisa - - 2007
Hypertension is characterized by cognitive deficits. As evidence for impaired psychomotor speed, including slower reaction times, is mixed, we aimed to provide a detailed investigation of simple reaction time in hypertension. Pre-motor and motor reaction times were measured across the cardiac cycle in 30 hypertensives and 29 normotensives to determine ...
Machado Adriana Caiado - - 2007
Mercury reduces cardiac contractility and arterial pressure at micromolar concentrations. We investigated the actions of 680ng/kg HgCl(2) on arterial pressure, heart rate (HR) and on the pressor reactivity to phenylephrine (PHE) in rats before and 1h after HgCl(2) administration and after hexametonium, verapamil and tempol treatments. HgCl(2) increased baseline systolic ...
Callegaro C C - - 2007
In patients with severe autonomic dysfunction, water ingestion elicits an acute pressor response. Hypertension may be associated with changes in cardiovascular autonomic modulation, but there is no information on the acute effects of water ingestion in patients with hypertension. In this study, we compared the effect of acute water ingestion ...
Armas-Padilla María Cristina - - 2007
Nitric oxide (NO), a multifunctional effector molecule that plays a central role in the maintenance of vascular homeostasis, regulates vascular tone and inhibits platelet and leukocyte adhesion to endothelial cells. NO status is related to the endothelial function. Patients with hypertension have lower levels of NO, increased free radical production, ...
Armas-Hernández María José - - 2007
The aim of this study was to evaluate the fibrinolytic system by measurement of fibrinogen, plasminogen, tissue-type plasminogen activator (t-PA), and plasminogen activator inhibitor-1 (PAI-1) in healthy normotensive subjects and in patients with essential hypertension. A group of 21 healthy normotensive subjects [age, 39.2 +/- 1.8 years; 8 males, 13 ...
Leenen Frans H H - - 2007
Cardiac beta-receptor responsiveness is diminished by both aging and hypertension. However, concomitant decreases in the activity of counterregulatory mechanisms, such as the arterial baroreflex and neuronal catecholamine uptake, influence the ultimate cardiac responses to adrenergic agents in vivo. In the present study, we evaluated by echocardiography cardiac responses to intravenous ...
Erdogan Dogan - - 2007
BACKGROUND: The assessment of coronary flow reserve (CFR) by transthoracic Doppler echocardiography has recently been introduced into clinical practice, and reduced CFR has been suggested to be a sensitive indicator of hypertensive end-organ damage; however, to date, this methodology has not been used to evaluate CFR in subjects with prehypertension. ...
Abdallah Morsy Desouky
Hypertension is a late manifestation of a syndrome consisting of dyslipidemia, insulin resistance, endocrine and renal dysfunction, obesity, left ventricular hypertrophy and diastolic dysfunction. The aim of this research is to study the arterial compliance, renal, cardiac, endocrine and metabolic disorders as predictors of hypertension syndrome. Identification and treatment of ...
Malmsten, Jonas
This study aims to evaluate blood pressure measurements in immobilized free-ranging gray wolves (Canis lupus) in Sweden. Eight immobilized wolves (five adults and three juveniles) were included in this study. All wolves were darted from a helicopter with darts containing 250 milligrams of tiletamine and 250 milligrams of zolazepam. Immobilized ...
Al-Nozha Mansour M - - 2007
OBJECTIVE: To determine the prevalence of hypertension among Saudis of both gender, between the ages of 30-70 years in rural as well as urban communities. This work is part of a major national study on Coronary Artery Disease in Saudis Study (CADISS). METHODS: This is a community-based study conducted by ...
Takeuchi Hiroyuki - - 2007
We investigated the antihypertensive effect and safety of alpha-linolenic acid (ALA) in human subjects. In Experiment 1, subjects with high-normal blood pressure and mild hypertension ingested bread containing 14 g of common blended oil (control oil) or ALA-enriched oil for 12 weeks. The test oil contained 2.6g/14 g of ALA. ...
Gundogan Fatih C - - 2007
AIM: To investigate the relationship between hypermetropia and systemic hypertension. METHODS: The study was performed on 2 groups of participants (a total of 1,162 participants). Group 1 comprised 370 patients with arterial hypertension and 205 age- and sex-matched normotensive subjects. Hypertension was defined as systolic blood pressure >or=140 mm Hg ...
Ayinde, Buniyamin A; ;
<i> Baissea axillaris</i> leaves are used in ethnomedicine to reduce elevated blood pressure. The effect of the aqueous extract of the leaves (obtained by decoction method) on blood pressure was tested on normotensive rabbits intravenously (i.v.) at doses of 2.5, 5, 10, and 20 mg/kg. The probable mechanism of action ...
Inoue Taku - - 2006
To evaluate the influence of proteinuria on the development of hypertension in normotensive screened subjects. We studied 4,428 normotensive subjects without heart disease (2888 men, 1540 women, age 19-89 years) who were participants in a 1-day health evaluation in both 1997 and 2000. The 3-year frequency of developing hypertension was ...
Ighoroje, A. D. A.
Sex variations in some haemorheological parameters: Haematocrit (Hct), Erythrocyte Sedimentation Rate (ESR), Hemoglobin concentration (Hbc), Fibrinogen concentration (FC), Relative Plasma Viscosity (RPV) and Whole Blood Relative Viscosity (WBRV) were determined in 30 male and 20 female hypertensive subjects without complications, aged between 30 and 70 years. 30 male and 20 ...
Stewart Andrew D - - 2006
Stiffness of large elastic arteries is elevated in subjects with hypertension, an effect that could potentially be explained by increased distending pressure. We examined effects of an acute change in blood pressure on carotid-femoral pulse wave velocity and carotid artery distensibility (inversely related to stiffness) in normotensive control subjects (n=20, ...
Palatini Paolo - - 2006
OBJECTIVE: Controversy remains concerning the pathogenetic mechanisms for the relationship between sympathetic activity, hypertension and lipid abnormalities. We tested the hypothesis that a condition characterized by sympathetic predominance may affect the evolution of blood pressure and lipids in the early stage of hypertension. METHODS: We prospectively studied 163 young stage ...
López Begoña - - 2006
OBJECTIVES: We sought to assess the distribution of collagen deposits and collagen degradation in hypertensive patients with either systolic heart failure (SHF) or diastolic heart failure (DHF). BACKGROUND: Increased collagen synthesis and deposition have been described in the myocardium of heart failure (HF) hypertensive patients. METHODS: We studied 39 HF ...
Rafidah H M - - 2006
Apart from the mean 24 hour ambulatory blood pressure (ABP), the blood pressure variability (BPV) also bears an independent relationship with target-organ damage in hypertension. A reduction in arterial compliance has been demonstrated in hypertension but its relation to BPV is still unknown. The aim of the study is to ...
Santić Zarko - - 2006
To asses prevalence of essential arterial hypertension in family members of soldiers killed in 1992-1995 war in Bosnia and Herzegovina. The study enrolled 1144 subjects who lost a family member in the war and 582 of their close neighbors who experienced no such loss. Data on their medical history and ...
Pini Riccardo - - 2006
OBJECTIVE: While many studies have examined the relation between antihypertensive treatment and ventricular hypertrophy, relatively few data are available regarding changes in arterial structure due to blood pressure reduction. Therefore, we compared normotensive to untreated hypertensive subjects to uncontrolled (treated with elevated blood pressure values) or controlled (treated with normal ...
Mancia Giuseppe - - 2006
BACKGROUND: The aim of the SMOOTH (San Marino Observational Outlooking Trial on Hypertension) study was to explore hypertension awareness, treatment and control and the associated metabolic abnormalities and risk factors in the population of San Marino, a small state in the Mediterranean area, for which limited evidence is available. METHODS: ...
Chiu Yueh-Hsia - - 2006
OBJECTIVE: To investigate the prevalence and progression of, and identify risk factors for, pre-hypertension, stage 1 and 2 hypertension in a population-based study. DESIGN: A prospective cohort study. SETTING: An integrated community-based multiple screening program in Keelung, Taiwan. PARTICIPANTS: A total of 67 011 individuals aged 20-79 years between 1999 ...
Cianci R - - 2006
BACKGROUND AND OBJECTIVES: There is a correlation between the fluid and ionic homeostasis and blood pressure but it is not known if these body fluid changes represent the cause or rather the effect of the blood pressure rise. We have estimated the compartmental distribution of body fluids by means of ...
Su T-C - - 2006
Pulse pressure (PP) has often been associated with cardiovascular morbidity and mortality. Patients with aortic regurgitation (AR) often have increased PP. The aim of this study is to investigate the associations among PP, AR and extracranial carotid artery (ECCA) carotid atherosclerosis (CA) in hypertensives and age- and sex-matched normotensives. Two ...
McCubbin James A - - 2006
OBJECTIVE: Acute pain sensitivity is reduced in clinical hypertension, but the precise relationship between pain perception and altered blood pressure control is not well-characterized. A negative correlation between resting blood pressure and pain sensitivity is observed throughout the normotensive range, suggesting links between basic mechanisms of blood pressure control and ...
Lindstedt Isak H - - 2006
OBJECTIVE: Our hypothesis states that the reactivity of the cutaneous microcirculation is reduced in patients with hypertension compared with healthy subjects. The objective was to verify the hypothesis by measuring microvascular function in hypertensive patients. DESIGN: The study was a controlled trial with two arms: 15 hypertensives and 15 normotensives ...
Jurak P P Inst. of Sci. Instrum., Acad. of Sci., Brno, Czech Republic. - - 2006
This paper presents results of blood pressure dynamicity analysis aimed at vessel stiffness detection and subsequent cardiac risk stratification. We analyzed ECG and BP parameters from 12 normotensive young healthy volunteers, 10 old healthy volunteers, and two groups of hypertensive patients -- 12 young non-medicated hypertensive subjects with no other ...
Doumas Michael - - 2006
Arterial hypertension is considered a risk factor for erectile dysfunction. The aim of the study was to evaluate the prevalence of erectile dysfunction in hypertensive compared with normotensive individuals of similar demographic characteristics in Greece. Furthermore, the effect of age, hypertension severity, hypertension duration, and antihypertension medication on erectile function ...
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