Abstract:
BACKGROUND:Hypertension is associated with increased urinary calcium excretion (UCa). A high sodium intake increases both UCa and blood pressure (BP). However, it is not clear whether these effects are modified by gender or ethnic origin. OBJECTIVES:To examine the relationships between BP, urinary sodium (UNa), gender and ethnic origin with both daily and fasting UCa in a population-based study. DESIGN AND METHODS:Out of 1577 individuals taking part in a cross-sectional survey, 743 were considered for the present analysis (407 women, 336 men) as they were all untreated, had provided a complete 24-h urine collection, and had all measurements of anthropometry, BP, UNa and UCa. They were 277 whites, 227 of black African origin and 239 South Asians. Comparisons were also carried out in the 690 participants who also provided 3-h fasting urine collections. RESULTS:After adjustment for confounders including age, and gender, 24-h UCa was significantly and independently associated with ethnic origin, BP and UNa. Mean 24-h UCa was 4.62 (s.e. 0.11) mmol/d in whites, 3.33 (0.12) in South Asians and 3.16 (0.13) in blacks (P < 0.001). a 100 mmol higher UNa predicted a 1.04 mmol higher daily UCa (P < 0.001), and a 20 mm Hg higher systolic BP predicted a 0.28 mmol higher UCa. The slopes were not significantly different by ethnic group. The ethnic differences in UCa were present when fasting UCa was used instead (1.64 [0.05] micromol/min in whites, 1.08 [0.06] in South Asians and 1.13 [0.06] in blacks; P < 0.001). CONCLUSIONS:These results indicate that BP, salt intake and ethnic origin are independent predictors of UCa in an unselected population. These relationships are unlikely to be the result of differences in Ca intake or intestinal Ca absorption as they are seen also after an overnight fast, suggesting that they may reflect differences in renal tubular handling. The estimated effects of either BP or sodium intake on UCa, sustained over many years, may be associated with significant effects on bone calcium content.
journal_name
J Hum Hypertensjournal_title
Journal of human hypertensionauthors
Blackwood AM,Sagnella GA,Cook DG,Cappuccio FPdoi
10.1038/sj.jhh.1001171subject
Has Abstractpub_date
2001-04-01 00:00:00pages
229-37issue
4eissn
0950-9240issn
1476-5527journal_volume
15pub_type
杂志文章abstract::Erythrocyte Na/K flux ratio was examined in relation to a family history of essential hypertension (FH-HT) and plasma and urine electrolytes in 84 normotensive children (13-15 yrs old), and in relation to sodium intake in six children with acute glomerulonephritis or IgA nephropathy who had normal renal function (6-13...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1993-02-01 00:00:00
abstract::The clinical correlates and risk profile of prediabetes (fasting plasma glucose (FPG) values in the upper normal limits but below the diabetic threshold) in hypertension, an insulin-resistant, prodiabetogenic condition, are scarcely known. For this reason, we evaluated 982 non-diabetic (FPG,<126 mg 100 ml(-1) and no a...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/jhh.2008.142
更新日期:2009-05-01 00:00:00
abstract::Beta-adrenoceptor blocking drugs (beta-blockers) first came into clinical use 25 years ago. Initially, propranolol was the only beta-blocker available but a number of others, similar in chemical composition and action, became available in the following 10 years. Most blocked both beta 1- and beta 2-receptors and diffe...
journal_title:Journal of human hypertension
pub_type: 杂志文章,评审
doi:
更新日期:1990-06-01 00:00:00
abstract::In view of the concern regarding the potential risks and benefits of sodium restriction, the effect on biochemical and orthostatic responses from a moderate reduction in sodium intake in elderly persons that is sufficient to lower systolic blood pressure (SBP) was examined. Seventeen hypertensive subjects aged 65-79 y...
journal_title:Journal of human hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1038/sj.jhh.1000436
更新日期:1997-06-01 00:00:00
abstract::Little is known about how aortic waveform parameters vary with ethnicity and lifestyle factors. We investigated these issues in a large, population-based sample. We carried out a cross-sectional analysis of 4798 men and women, aged 50-84 years from Auckland, New Zealand. Participants were 3961 European, 321 Pacific, 2...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/jhh.2016.78
更新日期:2017-05-01 00:00:00
abstract::High dietary salt is a major contributor to increased blood pressure, the leading risk for death worldwide. In several countries, national programmes to reduce dietary salt have been implemented with leadership and involvement of hypertension experts. Other hypertension experts may be interested in assisting or leadin...
journal_title:Journal of human hypertension
pub_type: 杂志文章,评审
doi:10.1038/jhh.2011.25
更新日期:2011-12-01 00:00:00
abstract::There is a strong association between cigarette smoking and accelerated hypertension. In mild hypertension smoking cigarettes has a distinct pressor effect and caffeine a small but more prolonged pressor action. Coffee and cigarette smoking together have an additive effect on blood pressure (BP). We have examined the ...
journal_title:Journal of human hypertension
pub_type: 临床试验,杂志文章
doi:
更新日期:1995-02-01 00:00:00
abstract::The value of microalbuminuria in predicting hypertensive complications in pregnant patients at high risk was tested in a prospective trial. A total of 276 patients were studied (142 in the study group vs 134 controls). Albumin was measured in 8-h overnight urine collection throughout pregnancy using radioimmunoassay t...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1996-09-01 00:00:00
abstract::Patients with severe hypertension (>180/110 mm Hg) require large blood pressure (BP) reductions to reach recommended treatment goals (<140/90 mm Hg) and usually require combination therapy to do so. This 8-week, multicenter, randomized, double-blind, parallel-group study compared the tolerability and antihypertensive ...
journal_title:Journal of human hypertension
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1038/sj.jhh.1002220
更新日期:2007-10-01 00:00:00
abstract::A deletion/insertion polymorphism in the ACE gene has been reported previously as a potent factor for myocardial infarction. We have tested the frequency of the deletion (D) allele of the ACE gene in 308 consecutive patients admitted to coronary care with chest pain. The gene frequencies were compared with those of 34...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
abstract::Professional historians generally treat the phrase 'what if' with pardonable scorn. It is a speculation which necessarily will never be tested in the real world. Nevertheless, there is a reasonable likelihood that, if typhoid fever had not carried off Frederick Akbar Mahomed at the age of 35, clinical research in Brit...
journal_title:Journal of human hypertension
pub_type: 传,历史文章,杂志文章
doi:
更新日期:1996-03-01 00:00:00
abstract::Arterial compliance, assessed by the ratio of stroke volume to pulse pressure, and baroreceptor sensitivity (Oxford method), were determined in ten patients with essential hypertension, treated with placebo or indapamide (2.5 mg/day), in a cross-over, single blind study. After three months of therapy, mean arterial pr...
journal_title:Journal of human hypertension
pub_type: 临床试验,杂志文章
doi:
更新日期:1988-10-01 00:00:00
abstract::To assess vascular compliance in patients with antiphospholipid syndrome (APS), or antiphospholipid antibodies (aPLs) positivity in comparison to healthy people and diabetes mellitus patients. Twenty-five patients with APS or aPLs, 33 healthy people (HP), 28 patients with diabetes mellitus (DM) underwent pulse wave an...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/sj.jhh.1002020
更新日期:2006-07-01 00:00:00
abstract::Gender-specific determinants of blood pressure (BP) values and control have not been the focus of clinical hypertension research. The purpose of this analysis was to identify gender-specific and multi-level (physician and patient) determinants of BP values and predictors of uncontrolled BP. We completed a subgroup ana...
journal_title:Journal of human hypertension
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1038/jhh.2010.71
更新日期:2011-06-01 00:00:00
abstract::Until now, no information is available about the effect of the presence of a doctor-in-training on a patient's blood pressure. We tested the hypothesis that the presence of a last year medical student might increase the blood pressure of the patient, in addition to the possible pressor response to the doctor-trainer. ...
journal_title:Journal of human hypertension
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1038/sj.jhh.1001744
更新日期:2004-11-01 00:00:00
abstract::In addition to high blood pressure, hypertension is characterised by metabolic and cardiovascular abnormalities, including decreased arterial compliance. To evaluate arterial involvement in early hypertension, we have employed a technique that analyses the arterial pulse wave contour to separately quantify proximal co...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::Physical exercise can increase urinary albumin excretion rate (UAER) in diabetic patients without microalbuminuria at rest (stage II diabetic nephropathy) or with baseline microalbuminuria (stage III diabetic nephropathy). The aim of this study was to compare the acute effects of captopril, an ACE inhibitor, and nifed...
journal_title:Journal of human hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1991-06-01 00:00:00
abstract::The aim of this study was to evaluate the effect of antihypertensive treatment with doxazosin on left ventricular anatomy and function. Therefore, after 4 weeks of washout with placebo (phase 1), doxazosin (dosage range from 1 to 16 mg, plus hydrochlorothiazide when necessary) was given to 11 essential hypertensive pa...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1992-02-01 00:00:00
abstract::A random sample of 200 East Anglian general practitioners was surveyed to establish current trends in the management of hypertension, including measurement of blood pressure (BP), patient investigation, treatment and follow-up. A total of 125 (62.5%) completed questionnaires was returned. Responses were used to assess...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1995-10-01 00:00:00
abstract::Ambulatory blood pressure variability (ABPV) is a predictor of cardiovascular risk in hypertensives. Factors that contribute to ABPV are not well described. This pilot study aimed to investigate the relationship between ABPV and urine catecholamine metabolites in order to rationalise further therapeutic intervention i...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/jhh.2014.23
更新日期:2015-01-01 00:00:00
abstract::Thyroid hormones, including free triiodothyronine (FT3), free thyroxine (FT4), have well-recognized effects on the cardiovascular system. However, the evidence is lacking regarding the relationship between repeated FT3, FT4, and thyroid-stimulating hormone (TSH) measurements and incident hypertension. The aim of this ...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/s41371-020-00474-4
更新日期:2021-01-18 00:00:00
abstract::The aim of the study is to determine the prevalence of hypertension (HTN) and its risk factors in urban and rural India. In Phase I of the Indian Council of Medical Research-India Diabetes (ICMR-INDIAB) study, individuals aged ⩾20 years were surveyed using a stratified multistage sampling design, in three states (Tami...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/jhh.2014.57
更新日期:2015-03-01 00:00:00
abstract::Hypertension prevalence rates remain comparatively low in Nigeria, although the associated morbidity and mortality including that due to malignant hypertension (MHT) is considerable. To determine the factors that may be associated with the development of MHT we compared 74 patients with essential MHT (age 48 +/- 9 yea...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/sj.jhh.1000963
更新日期:2000-03-01 00:00:00
abstract::In this study we investigated the role of endogenous endothelin in the cardiovascular response to acute stress, ie mild footshocks in conscious rats. Footshock-stress significantly increased mean arterial pressure and heart rate (P < 0.05). Peripheral or intracerebroventricular (IVT) administration of BQ 788, a select...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/sj.jhh.1001338
更新日期:2002-03-01 00:00:00
abstract::To investigate the involvement of the sympathetic nervous system and cell membrane sodium transport in hypertensive cardiac hypertrophy, we divided 51 middle-aged male patients with essential hypertension into cardiac hypertrophy and noncardiac hypertrophy groups. We then compared the plasma noradrenaline concentratio...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:
更新日期:1993-10-01 00:00:00
abstract::Aging is associated with cardiovascular remodeling, which can be accelerated in arterial hypertension (AH). The aim of this study was to evaluate the relation between hemodynamic profile and age, as well as to identify the role of sex in hemodynamic patterns of aging in AH. The study comprised 326 patients with AH (me...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/jhh.2015.63
更新日期:2016-03-01 00:00:00
abstract::Blood pressure (BP) is conventionally measured by cuff at the brachial artery as an indication of pressure experienced by the organs. However, individual variation in pulse pressure amplification means that brachial cuff BP may be a poor representation of true central BP. Estimation of central BP is now possible using...
journal_title:Journal of human hypertension
pub_type: 杂志文章,评审
doi:10.1038/jhh.2013.23
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVES:It has been suggested that hypertensives at high risk of cardiovascular complications can be identified on the basis of their left ventricular mass as determined echographically. However, there is as yet a lack of consensus on the mode of indexation (body surface area, height, height 2.7) of left ventricular...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/sj.jhh.1000885
更新日期:1999-08-01 00:00:00
abstract::Pulse wave analysis was performed in apparently normal volunteers (n=164) and in essentially hypertensive patients without cardiovascular complications (n=171) using a newly developed non-invasive pulse wave measurement device (HEM-9010AI). Our results suggest that early wave reflections measured by radial augmentatio...
journal_title:Journal of human hypertension
pub_type: 信件
doi:10.1038/sj.jhh.1002278
更新日期:2008-02-01 00:00:00
abstract::The clinical syndrome of supine hypertension associated with orthostatic hypotension (OH) in given individuals is recognized by specialists, but is underdiagnosed in the community. The objective of this study was to assess supine hypertension associated with hypotensive reactions on head-up tilt (SH-HRT) among patient...
journal_title:Journal of human hypertension
pub_type: 杂志文章
doi:10.1038/sj.jhh.1001947
更新日期:2006-02-01 00:00:00