125I-Angiotensin II binding to human blood cells.

Abstract:

:The binding of 125I-angiotensin II to human blood cells was investigated. Blood was drawn from healthy volunteers and platelets prepared with minimal contamination of red cells and white blood cells (less than 0.1%). Using thin layer chromatography, degradation of 125I-angiotensin II by platelets could be demonstrated in the presence of various enzyme inhibitors. However, when incubated with 1 mM diisopropylfluorophosphate (DFP) or 1 mg/ml bacitracin, no breakdown of 125I-angiotensin II could be detected. The amount of specifically bound 125I-angiotensin II increased linearly with the number of cells per tube. Binding reached a plateau within 90-120 min at 37 degrees C, and was stable thereafter. Specific binding was reversible. No binding could be detected at 4 degrees C. Specific binding of 125I-angiotensin II was saturable. Scatchard analysis of binding by platelets of healthy volunteers revealed one class of binding sites with an apparent Kd of 127 +/- 16 pM and a maximal binding capacity of 7.9 +/- 1.5 binding sites per cell. Competitive displacement of 125I-angiotensin II binding by angiotensin II-analogues showed a rank order of effectiveness. Unrelated peptides, e.g. bradykinin, vasopressin and enkephalin, did not displace specifically bound angiotensin II. Human mononuclear leucocytes were prepared by a Ficoll-isopaque gradient. However, these cells could not be used for studies of specific binding, since enzymatic degradation of 125I-angiotensin II could not be prevented despite addition of various enzyme inhibitors. Time-dependent uptake of 125I-angiotensin II showed no stable plateau. Thus our study shows specific binding of 125I-angiotensin II to human platelets.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

J Hypertens

journal_title

Journal of hypertension

authors

Mann JF,Sis J,Ritz E

doi

10.1097/00004872-198504000-00004

subject

Has Abstract

pub_date

1985-04-01 00:00:00

pages

131-7

issue

2

eissn

0263-6352

issn

1473-5598

journal_volume

3

pub_type

杂志文章
  • Renin-angiotensin system component expression in the HL-1 atrial cell line and in a pig model of atrial fibrillation.

    abstract:OBJECTIVES:Local atrial tissue angiotensin II (AngII) level is elevated in atrial fibrillation (AF), but the mechanism is unknown. We hypothesized that atrial myocytes express all components of the renin-angiotensin system (RAS) and investigated whether rapid depolarization alone is sufficient to increase paracrine Ang...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0b013e3282f34a4a

    authors: Tsai CT,Lai LP,Hwang JJ,Chen WP,Chiang FT,Hsu KL,Tseng CD,Tseng YZ,Lin JL

    更新日期:2008-03-01 00:00:00

  • Chronic ouabain treatment exacerbates blood pressure elevation in spontaneously hypertensive rats: the role of vascular mechanisms.

    abstract:OBJECTIVE:Hypertensive rats are more sensitive to the pressor effects of acute ouabain than normotensive rats. We analyzed the effect of chronic ouabain (approximately 8.0 microg/day, 5 weeks) treatment on the blood pressure of spontaneously hypertensive rats (SHRs) and Wistar-Kyoto rats and the contribution of vascula...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0b013e32832a391f

    authors: Xavier FE,Davel AP,Fukuda LE,Rossoni LV

    更新日期:2009-06-01 00:00:00

  • Non-invasive ultrasound assessment of renal artery stenosis by means of the Gosling pulsatility index.

    abstract:OBJECTIVE:To gauge the effectiveness of a new Doppler test for renal artery stenosis (RAS), based on the pulsatility index of the blood flow velocity spectrum within several interlobar arteries of both kidneys. METHODS:Twenty normotensive volunteers and 49 hypertensive patients were investigated with ultrasound. Patie...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:

    authors: Bardelli M,Jensen G,Volkmann R,Aurell M

    更新日期:1992-09-01 00:00:00

  • Left ventricular-arterial coupling in systemic hypertension: analysis by means of arterial effective and left ventricular elastances.

    abstract:OBJECTIVE:To clarify the spectrum of the left ventricular responses in hypertension in man by means of coupled analysis of elastances. In the present study we analysed the 'functional' coupling of the left ventricle and the arterial system in terms of the arterial effective elastance (E(a)) divided by a value of end-sy...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:

    authors: Cohen-Solal A,Caviezel B,Himbert D,Gourgon R

    更新日期:1994-05-01 00:00:00

  • Improvement of renal dysfunction in rats with chronic heart failure after myocardial infarction by treatment with the endothelin A receptor antagonist, LU 135252.

    abstract:OBJECTIVE:To investigate the role of an activated endothelin system in the renal dysfunction observed in chronic heart failure after myocardial infarction. METHODS:In rats with heart failure after myocardial infarction and in sham-operated animals (Sham), we investigated the effect on renal function of long-term oral ...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-200018100-00020

    authors: Bauersachs J,Braun C,Fraccarollo D,Widder J,Ertl G,Schilling L,Kirchengast M,Rohmeiss P

    更新日期:2000-10-01 00:00:00

  • Renal damage in primary aldosteronism: a systematic review and meta-analysis.

    abstract:OBJECTIVES:In experimental animal models, exogenous aldosterone excess has been linked to the progression of renal disease. However, the evidence of an increased risk of renal damage in patients affected by primary aldosteronism remains controversial. We aimed at evaluating the association between primary aldosteronism...

    journal_title:Journal of hypertension

    pub_type: 杂志文章,meta分析

    doi:10.1097/HJH.0000000000002216

    authors: Monticone S,Sconfienza E,D'Ascenzo F,Buffolo F,Satoh F,Sechi LA,Veglio F,Mulatero P

    更新日期:2020-01-01 00:00:00

  • Is the tissue availability of circulating insulin-like growth factor I involved in organ damage and glucose regulation in hypertension?

    abstract:BACKGROUND:Besides its capacity to regulate organ and tissue growth, the insulin-like growth factor I exerts biologic actions that resemble those of insulin. Tissue access of the factor depends on the distribution of the circulating bound factor between its binding protein 3 that remains within the intravascular space ...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-199715100-00014

    authors: Laviades C,Gil MJ,Monreal I,González A,Díez J

    更新日期:1997-10-01 00:00:00

  • Left ventricular diastolic function and responses to adrenergic stimuli in borderline arterial hypertension.

    abstract:OBJECTIVE:To detect the existence of a possible relationship between arterial hypertension and adrenergic reactivity to pressure stimuli, and changes in left ventricular diastolic function (LVDF). PATIENTS:Fifty-nine young subjects with borderline arterial hypertension and ten sex- and age-matched controls were invest...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-199203000-00006

    authors: Covi G,Sheiban I,Gelmini GP,Zenorini C,Mileto A,Girelli A,Lechi A

    更新日期:1992-03-01 00:00:00

  • Orlistat in hypertensive overweight/obese patients: results of a randomized clinical trial.

    abstract:OBJECTIVE:To assess the effect of orlistat plus diet compared with diet alone in promoting weight loss and blood pressure reduction in hypertensive, overweight/obese patients. DESIGN:A pragmatic randomized, controlled trial. SETTING:Hypertension clinic of a university hospital. PATIENTS:Hypertensive patients aged 18...

    journal_title:Journal of hypertension

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00004872-200311000-00026

    authors: Bloch KV,Salles GF,Muxfeldt ES,Da Rocha Nogueira A

    更新日期:2003-11-01 00:00:00

  • The vascular response to vasodilators is related to the membrane content of polyunsaturated fatty acids in hypertensive patients.

    abstract:OBJECTIVE:Abnormal vascular reactivity contributes to the pathophysiology of hypertension and hypertension-related organ damage. As the dietary content of fatty acids may affect the vascular responses, we investigated the relationship of endothelium-independent and endothelium-dependent vasodilation with the fatty acid...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000000495

    authors: Colussi G,Catena C,Dialti V,Mos L,Sechi LA

    更新日期:2015-05-01 00:00:00

  • Blood pressure and menopausal transition: the Atherosclerosis Risk in Communities study (1987-95).

    abstract:OBJECTIVE:Blood pressure changes during menopausal transition have not been studied previously using a biracial sample. We investigated whether menopausal transition was associated with change in blood pressure in African-American or white women. DESIGN, SETTING AND PARTICIPANTS:The prospective multicenter study, the ...

    journal_title:Journal of hypertension

    pub_type: 杂志文章,多中心研究

    doi:10.1097/00004872-200018010-00005

    authors: Luoto R,Sharrett AR,Schreiner P,Sorlie PD,Arnett D,Ephross S

    更新日期:2000-01-01 00:00:00

  • Stroke risk and antihypertensive drug treatment in the general population: the Japan arteriosclerosis longitudinal study.

    abstract:OBJECTIVE:To evaluate the association between stroke risk and blood pressure (BP) levels with regard to the usage of antihypertensive medications. METHODS:From the Japan arteriosclerosis longitudinal study, 11,371 participants from the four population-based cohort studies (aged 40-89) were followed up for a mean of 9....

    journal_title:Journal of hypertension

    pub_type: 杂志文章,meta分析

    doi:10.1097/HJH.0b013e32831967ca

    authors: Asayama K,Ohkubo T,Yoshida S,Suzuki K,Metoki H,Harada A,Murakami Y,Ohashi Y,Ueshima H,Imai Y,Japan Arteriosclerosis Longitudinal Study (JALS) group.

    更新日期:2009-02-01 00:00:00

  • Effects of blood pressure lowering on cardiovascular events, in the context of regression to the mean: a systematic review of randomized trials.

    abstract:OBJECTIVE:To assess the clinical relevance of regression to the mean for clinical trials and clinical practice. METHODS:MEDLINE was searched until February 2018 for randomized trials of BP lowering with over 1000 patient-years follow-up per group. We estimated baseline mean BP, follow-up mean (usual) BP amongst patien...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000001994

    authors: Salam A,Atkins E,Sundström J,Hirakawa Y,Ettehad D,Emdin C,Neal B,Woodward M,Chalmers J,Berge E,Yusuf S,Rahimi K,Rodgers A,Blood Pressure Lowering Treatment Trialists’ Collaboration.

    更新日期:2019-01-01 00:00:00

  • Evidence for persistent dysfunction of wild-type aldosterone synthase gene in glucocorticoid-treated familial hyperaldosteronism type I.

    abstract:BACKGROUND:In familial hyperaldosteronism type I (FH-I), glucocorticoid treatment suppresses adrenocorticotrophic hormone-regulated hybrid gene expression and corrects hyperaldosteronism. OBJECTIVE:To determine whether the wild-type aldosterone synthase genes, thereby released from chronic suppression, are capable of ...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-199715120-00080

    authors: Stowasser M,Taylor WL,Gartside MG,Tunny TJ,Gordon RD

    更新日期:1997-12-01 00:00:00

  • Early life exposure to Chinese famine modifies the association between hypertension and cardiovascular disease.

    abstract:OBJECTIVE:Studies have shown that famine exposure during early life may increase the risk of cardiovascular disease (CVD), hypertension, and diabetes during adulthood. We aimed to assess whether exposure to the Chinese famine (1959-1961) modifies the association between hypertension and CVD. METHODS:We investigated da...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000001496

    authors: Shi Z,Nicholls SJ,Taylor AW,Magliano DJ,Appleton S,Zimmet P

    更新日期:2018-01-01 00:00:00

  • Prestroke treatment with beta-blockers for hypertension is not associated with severity and poor outcome in patients with ischemic stroke: data from a national stroke registry.

    abstract:BACKGROUND:Beta-blockers are not recommended as the initial therapy for hypertension. Reports on associations between use of beta-blockers and stroke severity are inconclusive. We assessed associations between prestroke use of beta-blockers and stroke severity, poststroke disability and death in a large group of hypert...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000001218

    authors: Koton S,Tanne D,Grossman E

    更新日期:2017-04-01 00:00:00

  • Sodium transport kinetics in erythrocytes and inside-out vesicles from Milan rats.

    abstract::This paper describes the kinetics of the Na(+)-K+ pump and the Na(+)-K(+)-Cl- cotransport in sodium-loaded erythrocytes and of the Na(+)-K(+)-Cl- cotransport in erythrocyte inside-out vesicles (IOV) from Milan hypertensive (MHS) and normotensive (MNS) rats in order to evaluate the possible role of intracellular factor...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-199108000-00003

    authors: Ferrari P,Torielli L,Cirillo M,Salardi S,Bianchi G

    更新日期:1991-08-01 00:00:00

  • Very low frequency blood pressure variability is modulated by myogenic vascular function and is reduced in stroke-prone rats.

    abstract:BACKGROUND:Cerebrovascular myogenic function, which protects the brain from hemorrhagic stroke, is impaired in stroke-prone spontaneously hypertensive rats. Furthermore, myogenic function contributes to very low frequency blood pressure variability and dynamic autoregulation of cerebral blood flow is most effective at ...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0b013e3282fb81c8

    authors: Stauss HM,Petitto CE,Rotella DL,Wong BJ,Sheriff DD

    更新日期:2008-06-01 00:00:00

  • Mediterranean diet and antihypertensive drug use: a randomized controlled trial.

    abstract:OBJECTIVE:To examine in older individuals at high cardiovascular risk whether following a Mediterranean diet decreased the necessity of antihypertensive drugs and modulated their associated cardiovascular risk. METHODS:In the PREvención con DIeta MEDiterránea study, we assessed whether volunteers randomly allocated to...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000002765

    authors: Ribó-Coll M,Lassale C,Sacanella E,Ros E,Toledo E,Sorlí JV,Babio N,Lapetra J,Gómez-Gracia E,Alonso-Gómez ÁM,Fiol M,Serra-Majem L,Pinto X,Castañer O,Díez-Espino J,González JI,Becerra-Tomás N,Cofán M,Díaz-López A,Estru

    更新日期:2021-01-25 00:00:00

  • Effects of angiotensin converting enzyme inhibition on endothelium-dependent vasodilatation in essential hypertensive patients.

    abstract:BACKGROUND:Essential hypertension is characterized by an impairment of endothelium-dependent vasodilatation. OBJECTIVE:To test whether antihypertensive treatment with the angiotensin converting enzyme inhibitor lisinopril can improve vasodilatation in response to endothelium-dependent agonists in essential hypertensiv...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-199816040-00006

    authors: Taddei S,Virdis A,Ghiadoni L,Mattei P,Salvetti A

    更新日期:1998-04-01 00:00:00

  • Vascular but not cardiac remodeling is associated with superoxide production in angiotensin II hypertension.

    abstract:OBJECTIVE:Angiotensin (Ang) II increases reactive oxygen species (ROS), decreases nitric oxide (NO) bioavailability and promotes cardiovascular remodeling. ROS have been identified as critical second messengers of the trophic responses by Ang II. In rats with Ang II-induced hypertension, we investigated the role of ROS...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/01.hjh.0000179513.71018.09

    authors: Zhou MS,Jaimes EA,Raij L

    更新日期:2005-09-01 00:00:00

  • Superoxide dismutase mimetic, tempol, aggravates renal injury in advanced-stage stroke-prone spontaneously hypertensive rats.

    abstract:OBJECTIVE:The aim of this study was to determine whether antioxidant therapy could relieve hypertension and retard the progression of renal damage in advanced-stage hypertensive rats. METHODS:Twenty-four-week-old spontaneously hypertensive stroke-prone rats were treated for 8 weeks with the superoxide dismutase mimeti...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000000064

    authors: Sugama I,Kohagura K,Yamazato M,Nakamura T,Shinzato T,Ohya Y

    更新日期:2014-03-01 00:00:00

  • Within-visit BP variability, cardiovascular risk factors, and BP control in central and eastern Europe: findings from the BP-CARE study.

    abstract:INTRODUCTION AND OBJECTIVE:Blood pressure variability (BPV) within 24 h or between visits has been found to represent an independent risk factor for cardiovascular disease. The present study was aimed at determining whether a clinical significance can be given also to the BP variations occurring within a single clinica...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000000700

    authors: Grassi G,Seravalle G,Maloberti A,Facchetti R,Cuspidi C,Bombelli M,Laurent S,Redon J,Mancia G

    更新日期:2015-11-01 00:00:00

  • Effects of blood-pressure-lowering treatment in hypertension: 9. Discontinuations for adverse events attributed to different classes of antihypertensive drugs: meta-analyses of randomized trials.

    abstract:BACKGROUND:Choice of antihypertensive drugs is also based on the expected burden of adverse events associated with each class of agents, and we have recently identified treatment discontinuation for adverse events as a measure of treatment tolerability frequently reported in randomized controlled trials (RCTs). OBJECT...

    journal_title:Journal of hypertension

    pub_type: 杂志文章,meta分析,评审

    doi:10.1097/HJH.0000000000001052

    authors: Thomopoulos C,Parati G,Zanchetti A

    更新日期:2016-10-01 00:00:00

  • Night-time heart rate nondipping: clinical and prognostic significance in the general population.

    abstract:AIM:Studies addressing the association between a reduced drop of heart rate (HR) at night with subclinical organ damage and cardiovascular events in the general population are scanty. We evaluated this issue in individuals enrolled in the Pressioni Monitorate E Loro Associazioni study. METHODS:At entry, 2021 individua...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000001703

    authors: Cuspidi C,Facchetti R,Bombelli M,Sala C,Tadic M,Grassi G,Mancia G

    更新日期:2018-06-01 00:00:00

  • Excessive zinc intake elevates systemic blood pressure levels in normotensive rats--potential role of superoxide-induced oxidative stress.

    abstract:OBJECTIVES:The present study was designed to examine whether or not excessive Zn intake affects systemic blood pressure (BP) levels in a normotensive state. METHODS:Systolic BP (SBP) and mean arterial pressure (MAP) before and after administration of the nitric oxide synthase (NOS) inhibitor, N-nitro-L-arginine methyl...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-200403000-00017

    authors: Yanagisawa H,Sato M,Nodera M,Wada O

    更新日期:2004-03-01 00:00:00

  • The response of renal plasma flow to angiotensin II infusion in a population-based sample and its association with the parental history of essential hypertension.

    abstract:BACKGROUND:Results from previous studies suggested that a blunted response of renal plasma flow (RPF) to angiotensin II infusion during a high-sodium diet (a phenotype associated with nonmodulation) is an intermediate phenotype for essential hypertension. OBJECTIVE:To determine whether RPF traits used to investigate n...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-199715050-00003

    authors: Kardia SL,Sing CF,Turner ST

    更新日期:1997-05-01 00:00:00

  • An association study of angiotensinogen polymorphisms with serum level and hypertension in an African-American population.

    abstract:OBJECTIVE:To evaluate the association of angiotensinogen (AGT) gene with AGT level and hypertension based on the overall genetic variation of the AGT gene in among African-Americans. METHODS:All non-rare single nucleotide polymorphisms (SNPs) in AGT were identified by resequencing 24 individuals. Five tagging SNPs wer...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-200310000-00011

    authors: Wu X,Luke A,Rieder M,Lee K,Toth EJ,Nickerson D,Zhu X,Kan D,Cooper RS

    更新日期:2003-10-01 00:00:00

  • Relationship of renal histological damage to glomerular hypertension in patients with immunoglobulin A nephropathy.

    abstract:OBJECTIVE:Studies of experimental animals show glomerular hypertension to be important in the progression of glomerular disease. We evaluated this connection clinically by examining the relationship between glomerular hemodynamics and histological changes in patients with immunoglobulin (Ig)A nephropathy. METHODS:The ...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/00004872-200018010-00015

    authors: Konishi Y,Imanishi M,Okamura M,Yoshioka K,Okumura M,Okada N,Tanaka S,Fujii S,Kimura G

    更新日期:2000-01-01 00:00:00

  • Reference values and associated factors for Japanese newborns' blood pressure and pulse rate: the babies' and their parents' longitudinal observation in Suzuki Memorial Hospital on intrauterine period (BOSHI) study.

    abstract:OBJECTIVE:Currently, normative means and ranges of blood pressure (BP) and pulse rates in Japanese newborns are not available. The objective of the present study was to estimate BP, pulse rate, and their distribution among Japanese newborns. METHODS:Using oscillometric devices, arm or calf BP and pulse rate levels wer...

    journal_title:Journal of hypertension

    pub_type: 杂志文章

    doi:10.1097/HJH.0000000000000976

    authors: Satoh M,Inoue R,Tada H,Hosaka M,Metoki H,Asayama K,Murakami T,Mano N,Ohkubo T,Yagihashi K,Hoshi K,Suzuki M,Imai Y

    更新日期:2016-08-01 00:00:00