Effects of estradiol and progesterone on platelet calcium responses.

Abstract:

:We investigated the effects of 17 beta-estradiol (beta E2), alpha-estradiol (alpha E2), and progesterone (P) on baseline and vasopressin (AVP)-induced [Ca2+]i in human platelets obtained from healthy male and female volunteers. Platelets were treated with beta E2, alpha E2, P, or ethanol vehicle for 30 min at 37 degrees C. In males, both beta E2 and P at 10(-5) mol/L reduced the AVP-induced rise in [Ca2+]i, to 72 +/- 3% (mean +/- SEM) and 53 +/- 3%, respectively. However, at 10(-6) mol/L only beta E2 had a significant effect (P < .02). In females, 10(-6) and 10(-5) beta E2 reduced the AVP response to 85.3 +/- 4.6% and 80.8 +/- 5.4% of control values, respectively. Progesterone (10(-6) and 10(-5) mol/L) reduced the AVP response to 83.8 +/- 5.1% and 60.3 +/- 2.0% of control values, respectively. The inactive estrogen alpha E2 had no effect on basal or AVP-induced rise in [Ca2+]i in either subject population, suggesting hormonal specificity. Neither beta E2 nor P affected baseline [Ca2+]i in either population. Thus, by attenuating [Ca2+]i responses in platelets, beta E2 and P may modulate platelet aggregation and atherosclerosis.

journal_name

Am J Hypertens

authors

Raman BB,Standley PR,Rajkumar V,Ram JL,Sowers JR

doi

10.1016/0895-7061(94)00168-B

subject

Has Abstract

pub_date

1995-02-01 00:00:00

pages

197-200

issue

2

eissn

0895-7061

issn

1941-7225

pii

0895-7061(94)00168-B

journal_volume

8

pub_type

杂志文章
  • New-Onset Resistant Hypertension in a Newly Diagnosed Prostate Cancer Patient.

    abstract:BACKGROUND:New onset resistant hypertension in a previously stable patient with chronic hypertension should lead to consideration of secondary causes. Electrolyte abnormalities are useful clues for identifying some common causes, especially mineralocorticoid excess. CASE PRESENTATION:We report the case of a 69-year-ol...

    journal_title:American journal of hypertension

    pub_type:

    doi:10.1093/ajh/hpz125

    authors: Klomjit N,Rowan DJ,Kattah AG,Bancos I,Taler SJ

    更新日期:2019-11-15 00:00:00

  • Paraoxonase 1 (PON1) C/T-108 association with longitudinal mean arterial blood pressure.

    abstract:BACKGROUND:Blood pressure is a complex quantitative trait with a strong genetic component. In this study, we leveraged the Veterans Affairs electronic medical record system to explore the relationship between Paraoxonase 1 (PON1)-108 C/T (rs705379) and mean arterial blood pressure (MAP). METHODS:Outpatient blood press...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2012.106

    authors: Bhatnagar V,Liu L,Nievergelt CM,Richard E,Brophy VH,Pandey B,Lipkowitz MS,O'Connor DT

    更新日期:2012-11-01 00:00:00

  • Genome-wide linkage analysis of pulse pressure in American Indians: the Strong Heart Study.

    abstract:BACKGROUND:Pulse pressure, a measure of central arterial stiffness and a predictor of cardiovascular mortality, has known genetic components. METHODS:To localize the genetic effects of pulse pressure, we conducted a genome-wide linkage analysis of 1,892 American-Indian participants of the Strong Heart Family Study (SH...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2007.34

    authors: Franceschini N,MacCluer JW,Rose KM,Rutherford S,Cole SA,Laston S,Göring HH,Diego VP,Roman MJ,Lee ET,Best LG,Howard BV,Fabsitz RR,North KE

    更新日期:2008-02-01 00:00:00

  • Are retinal microvascular phenotypes associated with the 1675G/A polymorphism in the angiotensin II type-2 receptor gene?

    abstract:BACKGROUND:The X-linked angiotensin II type-2 receptor (AT2R) gene 1675G/A polymorphism is located in the short intron 1 of the AT2R gene within a sequence motif conforming to a splice branch site. AT2R is expressed in the human retina, but no previous study examined the association between retinal microvascular phenot...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2011.151

    authors: Liu YP,Kuznetsova T,Thijs L,Jin Y,Schmitz B,Brand SM,Brand E,Manunta P,Bianchi G,Struijker-Boudier H,Staessen JA

    更新日期:2011-12-01 00:00:00

  • Patient Barriers and Facilitators to Ambulatory and Home Blood Pressure Monitoring: A Qualitative Study.

    abstract:BACKGROUND:Guidelines recommend that patients with newly elevated office blood pressure undergo ambulatory blood pressure monitoring (ABPM) or home blood pressure monitoring (HBPM) to rule-out white coat hypertension before being diagnosed with hypertension. We explored patients' perspectives of the barriers and facili...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/hpy062

    authors: Carter EJ,Moise N,Alcántara C,Sullivan AM,Kronish IM

    更新日期:2018-07-16 00:00:00

  • Hydrogen Sulfide Improves Myocardial Remodeling via Downregulated Angiotensin Ⅱ/AT1R Pathway in Renovascular Hypertensive Rats.

    abstract:BACKGROUND:Hydrogen sulfide (H2S) is an important endogenous gaseous transmitter in many physiological functions. Plasma H2S decreased, and angiotensin II (Ang II) type 1 receptor (AT1R) increased in the myocardial tissues in 2-kidney 1-clip (2K1C) rats than in normotensive rats. Accumulating evidences suggest that H2S...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/hpw104

    authors: Liu SY,Duan XC,Jin S,Teng X,Xiao L,Xue HM,Wu YM

    更新日期:2017-01-01 00:00:00

  • Incomplete benefit of antihypertensive therapy on stroke reduction in older hypertensives with abnormal nocturnal blood pressure dipping (extreme-dippers and reverse-dippers).

    abstract::To determine whether the benefits of antihypertensive treatment vary according to dipper status, 811 asymptomatic elderly Japanese hypertensives underwent 24-h ambulatory blood pressure monitoring. During a mean follow-up period of 41 months, 32 stroke events were observed in patients who remained nonmedicated (n = 38...

    journal_title:American journal of hypertension

    pub_type: 临床试验,杂志文章

    doi:10.1016/s0895-7061(02)03020-0

    authors: Hoshide Y,Kario K,Schwartz JE,Hoshide S,Pickering TG,Shimada K

    更新日期:2002-10-01 00:00:00

  • Accuracy of anthropometric indexes of obesity to predict diabetes mellitus type 2 among men and women with hypertension.

    abstract:BACKGROUND:Anthropometric measurements and indexes that assess excess of adiposity are associated with cardiovascular risk factors, and predict diabetes mellitus. METHODS:This cross-sectional study reported the performance of adiposity indexes to detect or turn diabetes unlikely in patients with hypertension. Patients...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2010.212

    authors: Marcadenti A,Fuchs SC,Moreira LB,Wiehe M,Gus M,Fuchs FD

    更新日期:2011-02-01 00:00:00

  • Fibroblast Growth Factor-23, Heart Failure Risk, and Renin-Angiotensin-Aldosterone-System Blockade in Hypertension: The MESA Study.

    abstract:BACKGROUND:Higher fibroblast growth factor-23 (FGF23) concentrations have been found to be associated with incident heart failure (HF). Experimental data suggest FGF23 directly stimulates myocardial hypertrophy. FGF23 may also enhance renin-angiotensin-aldosterone system activity. Whether FGF23 is associated with incre...

    journal_title:American journal of hypertension

    pub_type: 杂志文章,多中心研究

    doi:10.1093/ajh/hpy142

    authors: Akhabue E,Vu TT,Vaidya A,Michos ED,de Boer IH,Kestenbaum B,Allison M,Szklo M,Ouyang P,Yancy CW,Wolf M,Isakova T,Carnethon MR

    更新日期:2019-01-01 00:00:00

  • Endogenous marinobufagenin-like immunoreactive substance. A possible endogenous Na, K-ATPase inhibitor with vasoconstrictor activity.

    abstract::Vasoconstrictor and Na/K pump inhibitory properties of a bufodienolide Na/K-ATPase inhibitor, marinobufagenin, were studied in isolated rings of 2 to 3 order branches of human pulmonary arteries respectively. Marinobufagenin displayed concentration-dependent vasoconstrictor activity (0.01 to 10 mmol/L). In sarcolemma ...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/0895-7061(96)00148-3

    authors: Bagrov AY,Dmitrieva RI,Fedorova OV,Kazakov GP,Roukoyatkina NI,Shpen VM

    更新日期:1996-10-01 00:00:00

  • Blood pressure response to dietary calcium intervention in humans.

    abstract::Epidemiological and experimental studies have suggested that dietary calcium deficiency may lead to the development of hypertension. This article reviews findings in human trials on calcium intervention with special reference to the responses of blood pressure and biochemical variables. Calcium supplementation consist...

    journal_title:American journal of hypertension

    pub_type: 杂志文章,评审

    doi:10.1093/ajh/3.8.147

    authors: Mikami H,Ogihara T,Tabuchi Y

    更新日期:1990-08-01 00:00:00

  • Postprandial hypotension: evaluation by ambulatory blood pressure monitoring.

    abstract::To elucidate whether postprandial hypotension (PPH) is associated with any diurnal change of blood pressure, ambulatory blood pressure monitoring was performed on 121 hospitalized essential hypertensive patients who received standardized meals. Postprandial change in blood pressure was defined as the difference betwee...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/s0895-7061(98)00161-7

    authors: Kohara K,Uemura K,Takata Y,Okura T,Kitami Y,Hiwada K

    更新日期:1998-11-01 00:00:00

  • Relationship between nutrition and blood pressure: a cross-sectional analysis from the NutriNet-Santé Study, a French web-based cohort study.

    abstract:BACKGROUND:Hypertension is the most prevalent chronic disease worldwide. Lifestyle behaviors for its prevention and control are recommended within worldwide guidelines. Nevertheless, their combined relationship with blood pressure (BP) level, particularly in the general population, would need more investigations. Our a...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/hpu164

    authors: Lelong H,Galan P,Kesse-Guyot E,Fezeu L,Hercberg S,Blacher J

    更新日期:2015-03-01 00:00:00

  • No evidence of a relation between 11beta-hydroxysteroid dehydrogenase type 2 activity and salt sensitivity.

    abstract:BACKGROUND:The ratio of urinary concentrations of tetrahydrocortisol plus allotetrahydrocortisol to tetrahydrocortisone [(THF + ATHF)/THE] reflects the activity of the enzyme 11beta-hydroxysteroid dehydrogenase type 2 (11BHSD2), which converts cortisol to cortisone in the kidney and thereby protects the mineralocortico...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/s0895-7061(03)00981-6

    authors: Melander O,Frandsen E,Groop L,Hulthén UL

    更新日期:2003-09-01 00:00:00

  • Insulin resistance, glucose intolerance and hyperinsulinemia in patients with hypertension.

    abstract::Plasma glucose and insulin responses to an oral glucose challenge and insulin-stimulated glucose uptake were measured in 47 age-, weight-, and sex-matched lean white men (16 with normal blood pressure, 14 with untreated hypertension, nine treated with a thiazide diuretic only, and eight treated with combined diuretic ...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/2.6.419

    authors: Swislocki AL,Hoffman BB,Reaven GM

    更新日期:1989-06-01 00:00:00

  • Aerobic exercise training fails to reduce blood pressure in nondipper-type hypertension.

    abstract::To assess whether aerobic exercise training is an effective and an alternative method to control blood pressure (BP) in hypertension, 32 uncomplicated, never treated patients suffering from mild-to-moderate essential arterial hypertension (EAH) were included in an aerobic exercise training program using a regular stan...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/s0895-7061(99)00265-4

    authors: Nami R,Mondillo S,Agricola E,Lenti S,Ferro G,Nami N,Tarantino M,Glauco G,Spanò E,Gennari C

    更新日期:2000-06-01 00:00:00

  • Relationship of plasma renin with a prothrombotic state in hypertension: relevance for organ damage.

    abstract:BACKGROUND:Components of the renin-angiotensin-aldosterone system (RAAS) and a prothrombotic state are predictors of cardiovascular events in hypertensive patients. A relationship between the RAAS and the coagulation/fibrinolytic systems has been demonstrated, but its clinical relevance in hypertension is unclear. We i...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2008.293

    authors: Sechi LA,Novello M,Colussi G,Di Fabio A,Chiuch A,Nadalini E,Casanova-Borca A,Uzzau A,Catena C

    更新日期:2008-12-01 00:00:00

  • Relationship Between Dynamic Changes in Body Weight and Blood Pressure: The ESTEBAN Survey.

    abstract:BACKGROUND:Obesity is one of the main determinants of blood pressure. The aim of this study was to evaluate and quantify the relations between the different anthropometric indices and blood pressure (BP) stratified by gender. METHODS:Cross-sectional analyses were performed using data from 2,105 adults from the ESTEBAN...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/hpz096

    authors: Vallée A,Perrine AL,Deschamps V,Blacher J,Olié V

    更新日期:2019-09-24 00:00:00

  • L-dopa and streptozotocin-induced diabetic nephropathy in rats.

    abstract::The purpose of the present study was to determine whether the physiological dopamine prodrug, L-dopa, could suppress streptozotocin-induced diabetic glomerular hyperfiltration, and thus prevent further evolution of the diabetic nephropathy. Male Wistar rats treated with streptozotocin (60 mg/kg, intravenously) rapidly...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/3.6.72s

    authors: Barthelmebs M,Vailly B,Velly J,Grima M,Imbs JL

    更新日期:1990-06-01 00:00:00

  • Hemodynamics and Vascular Hypertrophy in African Americans and Caucasians With High Blood Pressure.

    abstract:BACKGROUND:Hypertension in African Americans is characterized by greater systemic vascular resistance (SVR) compared with Caucasian Americans, but the responsible mechanisms are not known. The present study sought to determine if peripheral vascular hypertrophy is a potential mechanism contributing to elevated SVR in A...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1093/ajh/hpw080

    authors: Hill LK,Sherwood A,Blumenthal JA,Hinderliter AL

    更新日期:2016-12-01 00:00:00

  • Maternal endothelial progenitor colony-forming units with macrophage characteristics are reduced in preeclampsia.

    abstract:BACKGROUND:Endothelial progenitor cells (EPCs) provide paracrine support to the vascular endothelium and may also replace damaged or senescent endothelial cells. Low numbers of endothelial progenitor colony-forming units (CFU-ECs) in culture are a predictive biomarker of vascular disease. We hypothesized that the numbe...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2009.101

    authors: Lin C,Rajakumar A,Plymire DA,Verma V,Markovic N,Hubel CA

    更新日期:2009-09-01 00:00:00

  • Association of microalbuminuria with brachial-ankle pulse wave velocity: the Ohasama study.

    abstract:BACKGROUND:Microalbuminuria is recognized as a marker of generalized vascular dysfunction. However, the associations between microalbuminuria and pulse wave velocity (PWV), carotid intima-media thickness (IMT), and ambulatory blood pressure (ABP), respectively, have not been investigated. METHODS:Brachial-ankle PWV (b...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1038/ajh.2007.77

    authors: Ishikawa T,Hashimoto J,Morito RH,Hanazawa T,Aikawa T,Hara A,Shintani Y,Metoki H,Inoue R,Asayama K,Kikuya M,Ohkubo T,Totsune K,Hoshi H,Satoh H,Imai Y

    更新日期:2008-04-01 00:00:00

  • Hypertension and arterial stiffness: the Atherosclerosis Risk in Communities Study. ARIC Investigators.

    abstract::Our objective was to describe the relationship of arterial stiffness and hypertension in a large, population-based sample of men and women. Hypertension-related increases in arterial stiffness may reflect the distending pressure and/or structural alterations in the artery. Included were 10,712 participants, ages 45 to...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/s0895-7061(99)00281-2

    authors: Arnett DK,Boland LL,Evans GW,Riley W,Barnes R,Tyroler HA,Heiss G

    更新日期:2000-04-01 00:00:00

  • Interactions between dietary calcium and caffeine consumption on calcium metabolism in hypertensive humans.

    abstract::Abnormal calcium metabolism has been implicated in human hypertension. Caffeine consumption may contribute to hypertension since it increases urinary calcium excretion. Nineteen hypertensive subjects (HTN) and nineteen age and gender matched normotensive controls (NTC) who habitually consumed at least 175 mg caffeine ...

    journal_title:American journal of hypertension

    pub_type: 临床试验,杂志文章

    doi:10.1016/0895-7061(95)00337-1

    authors: Wise KJ,Bergman EA,Sherrard DJ,Massey LK

    更新日期:1996-03-01 00:00:00

  • Glucocorticoid sensitivity of circulating monocytes in essential hypertension.

    abstract: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 ...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/j.amjhyper.2004.01.010

    authors: Wirtz PH,von Känel R,Frey K,Ehlert U,Fischer JE

    更新日期:2004-06-01 00:00:00

  • Uncoupled endothelial nitric oxide synthase and oxidative stress in a rat model of pregnancy-induced hypertension.

    abstract:BACKGROUND:Preeclampsia is a human pregnancy-associated syndrome associated with hypertension, proteinuria, and endothelial dysfunction. We tested whether increased reactive oxygen species (superoxide and peroxynitrite) production and decreased bioavailability of the endothelial nitric oxide (NO) synthase (eNOS) cofact...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/j.amjhyper.2007.08.007

    authors: Mitchell BM,Cook LG,Danchuk S,Puschett JB

    更新日期:2007-12-01 00:00:00

  • Reduced mRNA and protein content of rho guanine nucleotide exchange factor (RhoGEF) in Bartter's and Gitelman's syndromes: relevance for the pathophysiology of hypertension.

    abstract:BACKGROUND:Activation of RhoA/Rho kinase (ROK) pathway by angiotensin II (Ang II) is involved in the pathophysiology of hypertension and remodeling. In Bartter's and Gitelman's syndrome (BS/GS), the short-term and long-term signaling of Ang II are blunted. The BS/GS have also reduced expression and response on Ang II c...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/j.amjhyper.2005.03.747

    authors: Pagnin E,Semplicini A,Sartori M,Pessina AC,Calò LA

    更新日期:2005-09-01 00:00:00

  • Fibrinolytic/hemostatic variables in arterial hypertension: response to treatment with irbesartan or atenolol.

    abstract::Essential hypertension is often accompanied by abnormalities of the coagulation/fibrinolytic system, predisposing to a procoagulant state. The aim of the present study was to compare the effects of atenolol (beta1-blocker agent) and irbesartan (angiotensin II type 1 receptor antagonist) on plasma levels of hemostatic/...

    journal_title:American journal of hypertension

    pub_type: 临床试验,杂志文章

    doi:10.1016/s0895-7061(00)00262-4

    authors: Makris TK,Stavroulakis GA,Krespi PG,Hatzizacharias AN,Triposkiadis FK,Tsoukala CG,Votteas VV,Kyriakidis MK

    更新日期:2000-07-01 00:00:00

  • Ambulatory blood pressure and family history of hypertension in healthy men and women.

    abstract:BACKGROUND:Family history of hypertension is a primary predictor of high blood pressure (BP). This study attempted to determine whether there is a gradual increase in BP between individuals with two hypertensive parents, one hypertensive parent, and normotensive parents and whether this increase is apparent with both a...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/j.amjhyper.2005.09.025

    authors: Goldstein IB,Shapiro D,Guthrie D

    更新日期:2006-05-01 00:00:00

  • Low-density lipoprotein particle size and coronary atherosclerosis in subjects belonging to hypertensive sibships.

    abstract:BACKGROUND:Dyslipidemia in hypertensive sibships may be characterized by atherogenic small low-density lipoprotein (LDL) particles. Whether LDL particle size is associated with the extent of coronary atherosclerosis in hypertensive sibships is unknown. METHODS:Subjects (n = 792, mean age 62 years, 60% women) were asce...

    journal_title:American journal of hypertension

    pub_type: 杂志文章

    doi:10.1016/j.amjhyper.2004.06.012

    authors: Kullo IJ,Bailey KR,McConnell JP,Peyser PA,Bielak LF,Kardia SL,Sheedy PF 2nd,Boerwinkle E,Turner ST

    更新日期:2004-09-01 00:00:00