Search Results
Results 301 - 350 of 913
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Björklund Kristina - - 2002
BACKGROUND: The clinical significance of white-coat hypertension is still unclear. Moreover, no study has examined metabolic predictors of white-coat versus sustained hypertension. METHODS AND RESULTS: We investigated men (n=602) in a longitudinal population-based cohort who at age 70 years were identified as normotensive, white-coat hypertensive (office blood pressure [BP] > ...
Dönmez Osman - - 2002
Salmonella infection is frequently encountered in childhood, but it is rarely associated with glomerulonephritis. We present in this report a case with Salmonella glomerulonephritis, which is infrequent in children. His general condition was found moderate, and temperature and blood pressure were 38 degrees C and 150/90 mmHg, respectively. The whole ...
Stewart Scott H - - 2002
To evaluate racial and ethnic disparity in blood pressure and cholesterol measurement and to analyze factors associated with any observed disparity. Cross-sectional analysis of the household component of the 1996 Medical Expenditure Panel Survey. Representative sample of the U.S. non-institutionalized population age 21 or older. Prevalence of self-reported blood pressure ...
Rege Bhagwant D - - 2002
The objective of this work was to identify, using a statistical experimental design, the critical processing variables that affect content uniformity and loading of active agent coated on tablets in a 24" Accela-Cota. United States Pharmacopeia (USP) specifies that the % relative standard deviation (RSD) of drug content within a ...
Movaffaghy Armand - - 2002
BACKGROUND: In healthy subjects, choroidal blood flow is regulated when the mean ocular perfusion pressure increases. Since capillary vascular beds are altered in diabetic patients, the regulation of choroidal blood flow could be affected by this pathology. PATIENTS AND METHODS: 10 type I diabetic patients without retinopathy (DNR group) and ...
Harshfield Gregory A - - 2002
The mechanisms through which stress may contribute to the racial difference in the prevalence of essential hypertension and associated target organ damage remain unclear. This study examined differences in stress-induced pressure natriuresis in 69 black and 52 white normotensives age 14 to 27 years, all with a positive family history ...
Yang Yu-Ching - - 2002
Stresses, microbending loss, and refractive-index changes induced simultaneously by axial strain and hydrostatic pressure in double-coated optical fibers are analyzed. The lateral pressure and normal stresses in the optical fiber, primary coating, and secondary coating are derived. Also presented are the microbending loss and refractive-index changes in the glass fiber. ...
Kim Heejoon - - 2002
To control pollutant emissions from coal combustion in some developing countries, biocoalbriquette, an artificially produced solid fuel, was developed. Both the breaking strength and production costs of the biocoalbriquette have become essentially the most important factors in popularizing it in these countries. To increase the breaking strength and decrease the ...
Lopes A A - - 2002
Salt sensitivity is regarded as an important contributor to the higher risk of hypertension in black people as compared with whites. This finding is in agreement with a better response to diuretics than to monotherapy with angiotensin-converting enzyme (ACE) inhibitor in black subjects. It is important to remember that the ...
Bohannon Arline D - - 2002
OBJECTIVES: To determine whether there are racial/ethnic differences regarding the relationship of level of blood pressure to change in cognitive function in older people. DESIGN: Longitudinal data 1986 to 1989 on representative, older, community-residing African Americans and whites. Blood pressure levels were assessed and a brief screen of cognitive functioning, ...
Matthews Karen A - - 2002
We assessed the impact of initial socioeconomic status and change in socioeconomic status across 10 years, ie, status trajectories, on the development of essential hypertension among black and white young men and women. Three thousand eight hundred twenty-seven normotensive individuals ages 18 to 30 years at study entry were followed ...
Lorenzo Carlos - - 2002
Mexican nationals in Mexico City and Mexican Americans in San Antonio, Tex, have a lower adjusted prevalence of hypertension than San Antonio non-Hispanic whites, especially after adjusting for the greater obesity of San Antonio Mexican Americans. The concomitant examination of a new study from Spain may better explain the association ...
White William B - - 2002
During 2001, the Center for Medicare and Medicaid Services (CMS, formally known as HCFA) independently evaluated the US national insurance coverage policy for ambulatory blood pressure monitoring. Diagnostic uses evaluated included screening for white-coat hypertension, assessment for possible antihypertensive drug resistance, evaluation of hypotensive symptoms, episodic hypertension, and autonomic dysfunction. ...
Kumanyika Shiriki K - - 2002
OBJECTIVE: To compare weight loss in blacks and whites in the Trial of Nonpharmacologic Interventions in the Elderly (TONE). RESEARCH METHODS AND PROCEDURES: TONE enrolled 421 overweight white and 164 overweight black adults, 60 to 79 years old, with blood pressure well-controlled on a single, antihypertensive drug. Drug therapy withdrawal ...
Cui J - - 2002
The cardioprotective effects of red wine have been attributed to several polyphenolic antioxidants including resveratrol and proanthocyanidins. The goal of the present study was to determine whether white wines could also provide cardioprotection. Three different white wines (white wine #1, #2 and #3) were chosen for this study. Ethanol-free extracts ...
Prisant L Michael - - 2002
OBJECTIVES: To determine arterial elasticity in normotensives and in treated and untreated hypertensive Black and White subjects. METHODS: A prospective multicenter, controlled clinical trial evaluated large (C-) and small (C2) artery elasticity indices among 3 groups: 1) normotensive subjects with or without a family history of hypertension; 2) controlled and ...
Barbeau Paule - - 2002
OBJECTIVES: An angiotensin II type I receptor polymorphism (AGTR1/A1166C) was previously found to be associated with hypertension. The purpose of this study was to investigate the relationship between this polymorphism and resting measures of hemodynamics in normotensive youth. DESIGN: Subjects were 41 Whites (mean +/- SD: 18 +/- 3 y ...
Gokce N - - 2001
Black Americans have increased morbidity and mortality rates from cardiovascular disease, greater prevalence of hypertension, and altered responses to vasodilator medications compared with those of white Americans. Hypertension and black race have been linked to impaired vascular function in the microcirculation. To examine these effects and their interaction in the ...
Ortolani O - - 2001
Differences in sensitivity to anesthetic drugs have already been described among races. This study was designed to comparatively investigate the anesthetic requirements of two different ethnic groups: Caucasians and African blacks. Forty-five Caucasians from Italy and 45 African blacks from Senegal, who underwent general IV anesthesia with propofol and remifentanil, ...
Kario K - - 2001
BACKGROUND: Blood pressure increases transiently after a major earthquake, but the characteristics and the mechanism of this increase are unknown. METHODS: The study involved 124 elderly hypertensive outpatients from two clinics near the epicenter of the Hanshin-Awaji earthquake (7.2 on the Richter scale) for whom ambulatory blood pressure monitoring and ...
Ozawa H - - 2001
OBJECT: Although the gray matter of the spinal cord has been thought to be softer than the white matter, there is no evidence to support this belief. Because the spinal cord is extremely soft, it has been difficult to measure the mechanical properties of the gray and white matter. The ...
Pierdomenico S D - - 2001
BACKGROUND: Sustained and white-coat hypertensives show hypertension in the office setting but different blood pressure values outside the clinical environment. So far, only a few incomplete data on heart rate are available inside and outside the clinical setting in these groups of patient. The aim of this study was to ...
El-Gharbawy A H - - 2001
The purpose of this study was to evaluate the association of the insulin resistance syndrome with both blood pressure and target organ damage in blacks and whites with essential hypertension. Eighty-two black and 63 white French Canadian patients were studied. None had diabetes, and antihypertensive medications had been discontinued for ...
Min K - - 2001
The goal of this study was to assess the utility of existing and new techniques for characterizing and measuring hemodynamic changes in the vagina and clitoris in response to pelvic nerve stimulation (PNS) in an animal model. Using female New Zealand White rabbits, we measured the following parameters before, during, ...
Morimoto S - - 2001
Stress elevates blood pressure (BP) by increased sympathetic nerve activity. Cilnidipine, a novel dihydropyridine calcium antagonist that has inhibitory actions on N-type as well as L-type voltage-dependent calcium channels, has been reported to attenuate the cold stress-induced increase in plasma norepinephrine and BP in rats. Because white coat effect is ...
Madu E C - - 2001
BACKGROUND: Measurements by P-wave signal-averaged electrocardiogram (P-SAECG) of P-wave duration and P-wave voltage integral are higher in patients with atrial fibrillation (AF) than in those with sinus rhythm. Hypertension is perhaps the most common cardiovascular antecedent cause of AF, and particularly a disproportionate cause of morbidity and mortality among blacks. ...
Addison C - - 2001
OBJECTIVE: To investigate the use of ambulatory blood pressure monitoring (ABPM) in identifying and managing a group of patients referred to a tertiary centre for the assessment of their blood pressure and to illustrate the importance of introducing standardised ABPM treatment guidelines. PATIENTS AND METHODS: We examined 2000 sequential ABP ...
Baker E H - - 2001
Salt-sensitive hypertension is more common and has more severe consequences in urban black populations than in white populations. Increased renal sodium reabsorption through epithelial sodium channels may underlie the development of high blood pressure in black people. Increased sodium channel activity has been detected in subjects with Liddle's syndrome by ...
Kristensen K S - - 2001
OBJECTIVE: To investigate the influence of blood pressure variability on target organ involvement. METHODS: Using a cross-sectional study of a hypertension clinic at a district general hospital, 420 patients with newly diagnosed untreated essential hypertension referred on a consecutive basis from general practice and 146 normal subjects drawn at random ...
Okosun I S - - 2001
OBJECTIVE: To compare the association of apolipoprotein B (ApoB) and total cholesterol to high-density lipoprotein cholesterol (TC/HDL) with blood pressure in abdominally obese white and black American women. We also sought to determine if there are ethnic differences in blood pressure values that could be explained by differences in mean ...
Blascovich J - - 2001
We examined the effect of stereotype threat on blood pressure reactivity. Compared with European Americans, and African Americans under little or no stereotype threat, African Americans under stereotype threat exhibited larger increases in mean arterial blood pressure during an academic test, and performed more poorly on difficult test items. We ...
Veglio F - - 2001
The resistant hypertension has been differentiated in true resistant hypertension and white-coat resistant hypertension by using ambulatory blood pressure monitoring. White-coat resistant hypertension was defined as high clinic blood pressure, despite triple treatment for at least 3 months, but day-time blood pressure values < 135/85 mmHg. The aim of this ...
Blazer D G - - 2001
OBJECTIVES: To determine the risk from hypertension for all-cause mortality in a racially mixed sample of community-dwelling older adults. DESIGN: Baseline blood pressure was assessed between 1985 and 1986 in a sample of persons 65 years of age and older from five counties of the Piedmont of North Carolina (N ...
Cook B B - - 2001
Whether positive family history (FH) of essential hypertension (EH) in normotensive youth is associated with increased left ventricular mass (LVM) and hemodynamic, anthropometric, and demographic parameters previously associated with increased LVM in adults is unknown. To examine these issues, 323 healthy youth (mean age, 13.6 +/- 1.3 years), 194 with ...
Stein C M - - 2001
Hypertension is more frequent and more severe in some Black populations. Although many studies have focused on hypertension in black people in an attempt to understand the genetic and environmental factors that regulate blood pressure, this approach has not been productive. Study of the relationship between specific phenotypes and genotypes, ...
Kemper T L - - 2001
Hypertension is an identified major risk factor for cerebrovascular disease, which is second only to Alzheimer's disease as a cause of dementia in the elderly. In addition, hypertension has been associated with a more subtle, progressive decline in cognitive function for which the neuropathology is not well understood. The present ...
Sagnella G A - - 2001
Plasma renin activity is significantly lower in black people compared with whites independent of age and blood pressure status. The lower PRA appears to be due to a reduction in the rate of secretion of renin but the exact mechanistic events underlying such differences in renin release between blacks and ...
Le Pailleur C - - 2001
Talking has been shown to increase blood pressure instantaneously in hypertensive patients and to contribute to the white coat effect. The effects of talking were compared with those of counting aloud in 64 patients with essential hypertension who were randomly assigned to a period of stress talking and a period ...
Alpert B S. - - 2001
The precursors of essential hypertension (EH) begin in childhood. If the etiology of the evolution of EH were discovered, interventions may be developed to lead to the primary prevention of EH. In particular, one ethnic group, African-Americans (Blacks), are at increased risk of development of EH in adulthood. Hemodynamic changes ...
Daniels I N - - 2001
Evidence suggests that hostility correlates with blood pressure levels in African-American samples. However, some studies have reported an inverse relationship, while others have found the relationship between blood pressure and hostility to be positive. Other literature suggests health outcomes in general, and blood pressure in particular, are related to cultural ...
Gainer James V. - - 2001
-Bradykinin is a potent endothelium-dependent vasodilator that contributes to the blood pressure lowering effect of angiotensin-converting enzyme inhibition. Angiotensin-converting enzyme inhibitors are widely prescribed for the treatment of hypertension, although the efficacy of this therapy has been reported to vary among different ethnic groups. To determine whether vascular sensitivity to ...
Schneider R H - - 2001
African Americans experience higher morbidity and mortality than Whites do as a result of hypertension and associated cardiovascular disease. Chronic psychosocial stress has been considered an important contributing factor to these high rates. The authors describe the rationale and design for a planned randomized controlled trial comparing Transcendental Meditation, a ...
Kocher T - - 2001
BACKGROUND, AIMS: Depending on the phase of periodontal treatment, power-driven inserts with different power levels are necessary: during initial treatment and flap operations, it must be possible to remove calculus which firmly adheres to the root surface with great efficiency; in contrast, gentle root-surface instrumentation has a high priority during ...
Wamboldt M Z - - 2000
BACKGROUND: Poor perception of asthma symptoms has been cited as a risk factor for asthma death, yet there is no consensus as to the best way to characterize perception, and little is known about perception in normative samples. Hypoperceivers are of clinical interest because of risks of undertreatment; hyperperceivers are ...
Pickering T G - - 2000
Ambulatory blood pressure monitoring (ABPM) is becoming widely accepted as a clinically useful tool for assessing cardiovascular risk in hypertensive patients, although it is not generally recognized for reimbursement in the United States. There are now six major prospective studies, all of which have shown that ABPM gives a better ...
Stein C M - - 2000
Blood pressure reactivity is enhanced in young black subjects through mechanisms that are poorly understood. We compared alpha-adrenergic-mediated vasoconstrictor and ss-adrenergic vasodilator sensitivity and their relation to sympathetic activity in blacks and whites. Ten healthy black (age, 29.9+/-2.4 years) and 10 white (age, 28.3+/-1.9 years) men were studied. Forearm blood ...
Okin P M - - 2000
The Losartan Intervention For Endpoint (LIFE) reduction in hypertension study is a double-blind, prospective, parallel group study designed to compare the effects of losartan with those of atenolol on the reduction of cardiovascular morbidity and mortality. A total of 9194 patients with hypertension and ECG left ventricular hypertrophy (LVH) by ...
Zhou L - - 2000
Heart rate (HR) has been shown to predict future blood pressures (BP) in studies in adults. We explored the relation of HR to future BP levels in a cohort of 344 black and 456 white schoolchildren ages 5 to 19 years, to examine the hypothesis that HR predicts subsequent BP ...
Strandberg T E - - 2000
BACKGROUND: Because long-term follow-up studies, which also included normotensive controls, have been lacking, the clinical significance of 'white coat' effect and of 'white coat' hypertension has remained controversial. METHODS AND RESULTS: Twenty-one-year prospective data was gathered in 536 men with cardiovascular risk factors at baseline. Blood pressure was measured both ...
Pierdomenico S D - - 2000
BACKGROUND: It is unknown whether "white coat" hypertension, also known as isolated clinic hypertension, shares similarities in pathophysiologic background with sustained hypertension. Therefore we evaluated 24-hour autonomic nervous function in sustained and white coat hypertension. METHODS: We selected 12 patients with sustained hypertension (clinic blood pressure >/=140/90 mm Hg and ...
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