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Source: Hypertension
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Total 263 results found since Jan 2013.
Day-by-Day Variability of Home Blood Pressure and Incident Cardiovascular Disease in Clinical PracticeNovelty and Significance Blood Pressure Variability
We assessed the relationship between day-by-day home blood pressure (BP) variability and incident cardiovascular disease (CVD) in clinical practice. J-HOP study (Japan Morning Surge-Home Blood Pressure) participants underwent home BP monitoring in the morning and evening for a 14-day period, and their BP levels and BP variability independent of the mean (VIM) were assessed. Incident CVD events included coronary heart disease and stroke. Cox models were fitted to assess the home BP variability–CVD risk association. Among 4231 participants (mean±SD age, 64.9±10.9 years; 53.3% women; 79.1% taking antihypertensive medicati...
Source: Hypertension - December 13, 2017 Category: Cardiology Authors: Satoshi Hoshide, Yuichiro Yano, Hiroyuki Mizuno, Hiroshi Kanegae, Kazuomi Kario Tags: Hypertension Original Articles Source Type: research
Endothelial Mineralocorticoid Receptor Mediates Parenchymal Arteriole and Posterior Cerebral Artery Remodeling During Angiotensin II-Induced HypertensionNovelty and Significance Brain
The brain is highly susceptible to injury caused by hypertension because the increased blood pressure causes artery remodeling that can limit cerebral perfusion. Mineralocorticoid receptor (MR) antagonism prevents hypertensive cerebral artery remodeling, but the vascular cell types involved have not been defined. In the periphery, the endothelial MR mediates hypertension-induced vascular injury, but cerebral and peripheral arteries are anatomically distinct; thus, these findings cannot be extrapolated to the brain. The parenchymal arterioles determine cerebrovascular resistance. Determining the effects of hypertension and ...
Source: Hypertension - November 8, 2017 Category: Cardiology Authors: Janice M. Diaz-Otero, Courtney Fisher, Kelsey Downs, M. Elizabeth Moss, Iris Z. Jaffe, William F. Jackson, Anne M. Dorrance Tags: Hypertension, Vascular Disease Original Articles Source Type: research
Aldosterone Target NGAL (Neutrophil Gelatinase-Associated Lipocalin) Is Involved in Cardiac Remodeling After Myocardial Infarction Through NF{kappa}B PathwayNovelty and Significance Heart
In conclusion, NGAL, a downstream MR activation target, is a key mediator of post-MI cardiac damage. NGAL may be a potential therapeutic target in cardiovascular pathological situations in which MR is involved.
Source: Hypertension - November 8, 2017 Category: Cardiology Authors: Ernesto Martinez–Martinez, Mathieu Buonafine, Ines Boukhalfa, Jaime Ibarrola, Amaya Fernandez–Celis, Peter Kolkhof, Patrick Rossignol, Nicolas Girerd, Paul Mulder, Natalia Lopez–Andres, Antoine Ouvrard–Pascaud, Frederic Jaisser Tags: Basic Science Research Original Articles Source Type: research
Abstract P136: Ischemic Evaluation in Patients With Hypertensive Emergency / Urgency and Acute Systolic Heart Failure: Is Coronary Angiography Required for All? Session Title: Onsite Poster Competition I With Reception
Conclusions: Our results suggest that only a minority of patients with HU/E and S-HF have obstructive CAD. It may be possible to stratify patients using demographic and non-invasive tests to direct only those with high likelihood of O-CAD for coronary angiography. These results should be validated in large registry populations.
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Jared W Davis, Muhannad Almubarak, Samuel K McElwee, Amrita Mukherjee, Firas Al-Solaiman, Mark F Sasse, Massoud A Leesar, Arka Chatterjee Tags: Poster Abstract Presentations Source Type: research
Abstract 137: Sox6 Regulates Renin Expression During Juxtaglomerular Cell Expansion Session Title: Renin Angiotensin System II
Introduction: Hypertension, a common condition that affects 33% of the US population, is a major risk factor for heart disease and stroke. Treatments for hypertension are limited and there is a critical need to develop new therapies. The Renin Angiotensin Aldosterone System (RAAS) plays a key role in regulating blood pressure, and renin controls its rate-limiting step. In adults, renin is produced and stored by renal Juxtaglomerular (JG) cells. During sodium restriction and other pathophysiological stresses that require an increase in renin expression and release, the adult kidney increases the number of cells expressing r...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Jason D Foss, Liang Xiao, Kandi D Horton, Mohammad Saleem, Conrad P Hodgkinson, David G Harrison, Jose A Gomez Tags: Oral Abstract Presentations Source Type: research
Abstract 142: Angiotensin II Type 1 Receptor Autoantibody Inhibition Improves Blood Pressure and Markers of Neurological Damage and Oxidative Stress in Brains of Placental Ischemic Rats During Pregnancy Session Title: Developmental Programming and Pregnancy Induced Hypertension
In conclusion, our preliminary data suggests that AT1-AA inhibition could be a potential therapy to improve peripheral and neurological complications during PE. Research Supported by T32HL105324 (Cunningham), RO1HD067541-06 (LaMarca), DK-104184 (Roman), 050049 (Fan), P20-GM-104357 (cores B and C-Roman; Pilot-Fan) and AHA 16GRNT31200036 (Fan).
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Mark W Cunningham, Venkata Ramana Vaka, Lorena Amaral, Fan Fan, Tarek Ibrahim, Richard R Roman, Babbette LaMarca Tags: Oral Abstract Presentations Source Type: research
Abstract 143: Pregnancy Dependant Transcriptomic Changes in Uterine Arteries From Hypertensive and Normotensive Rat Models Session Title: Developmental Programming and Pregnancy Induced Hypertension
This study investigated early gene expression changes in the uterine arteries (UA) of pregnant SHRSP and normotensive Wistar Kyoto (WKY) rats.Methods: SHRSP and WKY females were time mated and UA isolated at gestational day (GD)6 (n=3). Non-pregnant (NP) UA were isolated from virgin aged matched controls (n=3). UA RNAseq (Illumina platform) was performed. Transcript level gene changes were interpreted using Ingenuity Pathway Analysis (FDR 1.0). Quantitative RT-PCR was used to validate significantly differentially expressed genes.Results: There was a greater number of differentially expressed transcripts NP v GD6 in SHRSP c...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Hannah L Morgan, Elisabeth Beattie, Martin W McBride, Delyth Graham Tags: Oral Abstract Presentations Source Type: research
Abstract P146: Uric Acid is an Independent Risk Factor for Developing Hypertension From Prehypertension: A 5-year Japanese Cohort Study Session Title: Onsite Poster Competition I With Reception
This study is conducted to clarify the risks.Methods: We conducted a retrospective 5-year cohort study using the data from 3,584 prehypertensive Japanese adults (52.1±11.0 years, 2,081 men) in 2004 and reevaluated it 5 years later. We calculated the cumulative incidences of hypertension over 5 years, then, we detected the risk factors and calculated odds ratios (ORs) for developing hypertension by crude analysis and after adjustments for age, sex, body mass index, smoking and drinking habits, baseline systolic and diastolic blood pressure, pulse rate, diabetes mellitus, dyslipidemia, chronic kidney disease, and serum uric...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Masanari Kuwabara, Shigeko Hara, Koichiro Niwa, Minoru Ohno, Ichiro Hisatome Tags: Poster Abstract Presentations Source Type: research
Abstract P173: Target Blood Pressure in Elderly Hypertensive Patients: A Korean National Health Insurance Service Health Examinee Cohort Study Session Title: Onsite Poster Competition I With Reception
This study used the National Health Insurance Service Health examinee Sample Cohort. We selected subjects who were over the age of 60 years and who had received a newly diagnosis of hypertension (Korean Classification of Disease [KCD] codes I10–I13) from 2003 to 2006. Subjects who had previous major cardiovascular (CV) events, such as heart failure, ischemic heart disease, stroke, or end stage renal disease (ESRD) were excluded. The remaining 25,858 individuals were divided into three groups; 1) mean systolic blood pressure (SBP)
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Jiwon Seo, Sungha Park, Chan Joo Lee, Jinseub Hwang Tags: Poster Abstract Presentations Source Type: research
Abstract 031: Diastolic Blood Pressure, Coronary Artery Calcium, and Cardiac Outcomes in the Multi-ethnic Study of Atherosclerosis Session Title: Cardiac Hypertrophy and Dysfunction
Diastolic blood pressure (BP) has a J-curve relationship with coronary heart disease and death. Because this association is thought to reflect reduced coronary perfusion at low diastolic BP, our objective was to test whether the J-curve is most pronounced among persons with coronary artery calcium. Among 6,811 participants from the Multi-Ethnic Study of Atherosclerosis, we used Cox models to examine if diastolic BP category is associated with coronary heart disease events, stroke, and mortality. Analyses were conducted in the sample overall and after stratification by coronary artery calcium score. In multivariable-adjuste...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: John W McEvoy, Faisal Rahman, Mahmoud Al Rifai, Michael Blaha, Khurram Nasir, Matthew Budoff, Bruce Psaty, Wendy Post, Roger Blumenthal Tags: Oral Abstract Presentations Source Type: research
Abstract 044: Sex Differences in Relative Contributions of Hemodynamic Parameters to Blood Pressure: A Population-based Study of Adolescents and Middle-aged Adults Session Title: Gender Differences and Sex Hormones
Hypertension is a leading cause of death. Sex differences in blood pressure (BP) and hypertension prevalence emerge during adolescence and remain throughout reproductive age. Sex differences in BP-underlying hemodynamics, i.e., in the relative contributions of stroke volume (SV), total peripheral resistance (TPR) and heart rate (HR) to BP, have not been investigated in these age categories in a population-based setting. We studied a cohort of 1,347 individuals, including 911 adolescents (12-18 years, 52 % female) and 426 young to middle-aged adults (36-65 years, 56 % female). Beat-by-beat systolic BP (SBP) and diastolic BP...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Catriona A Syme, Jean Shin, Michal Abrahamowicz, Gabriel Leonard, Michel Perron, Louis Richer, Suzanne Veillette, Daniel Gaudet, Tomas Paus, Zdenka Pausova Tags: Oral Abstract Presentations Source Type: research
Abstract 104: Cerebrovascular and Cognitive Dysfunction in DOCA-Salt Hypertension is Mediated by Perivascular Macrophages Session Title: Salt and Hypertension
Hypertension (HTN) and high-salt diets are important risk factors for stroke and dementia. DOCA-salt is a recognized model of HTN driven by sodium retention and brain renin-angiotensin system (RAS) activation. However, it is unknown whether essential mechanisms regulating the cerebral circulation are altered in DOCA-salt mice, and, if so, whether these alterations are associated with cognitive impairment. To this end, C57BL/6 mice were implanted with 50mg DOCA pellets SQ and received 0.9% NaCl drinking water for 3 weeks. Cerebral blood flow (CBF) was measured in the somatosensory cortex by laser-Doppler flowmetry through a...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Monica M Santisteban, Giuseppe Faraco, Gianfranco Racchumi, Josef Anrather, Costantino Iadecola Tags: Oral Abstract Presentations Source Type: research
Abstract P104: Oxygen Drastically Increases Cardiac Output Without Changing Mean Pulmonary Arterial Pressure in a Patient With Severe, Progressive Pulmonary Hypertension Session Title: Onsite Poster Competition I With Reception
Conclusion: Our patient had no significant change in mPAP facing oxygen-induced decrease in PVR. Instead, there was a marked increase in RV CO explainable only by an increase in RV SV facing decreased RV afterload, as HR decreased with oxygen. These findings are consistent with the patient’s class 1 exercise capacity despite having severe PH, indicating an ability to increase CO with activity and suggesting a positive response to medications and better prognosis. Our case shows the importance of assessing hemodynamic data in the workup and management of PH. We propose using TTE assessment of CO coupled with 100% oxygen a...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Dan Zheng, Thomas Roe Tags: Poster Abstract Presentations Source Type: research
Abstract P114: White Coat Effect is Common Among Stroke Survivors Session Title: Onsite Poster Competition I With Reception
Background and Purpose: Among stroke survivors, uncontrolled hypertension is a major risk factor for recurrent stroke. Blood pressure (BP) medication titration often relies on office BP measures, which may be inaccurate due to the white coat effect (WCE). We sought to determine the prevalence of the WCE in stroke survivors and to determine whether clinical and demographic factors were associated with WCE.Methods: We followed ischemic and hemorrhagic stroke and transient ischemic attack patients with prior hypertension presenting to our stroke clinic for a BP study. Sitting BP was obtained by a medical assistant using an of...
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Adriana Morell, Munachi Okpala, Sean Savitz, Anjail Z Sharrief Tags: Poster Abstract Presentations Source Type: research
Abstract P119: Hypertension Trends in Florida Stroke Patients. The Florida Puerto Rico Collaboration to Reduce Stroke Disparities Session Title: Onsite Poster Competition I With Reception
Conclusions: In our large Stroke Registry we observed higher prevalence of HTN in women, blacks and AIS. We also observe a decreasing trend over the past 7 years, especially among women and minorities (blacks and Hispanics). These findings provide an opportunity to design and implement interventions to reduce disparities in HTN and improve stroke outcome.
Source: Hypertension - September 14, 2017 Category: Cardiology Authors: Marialaura Simonetto, Nirav H Shah, Kefeng Wang, Maria A Ciliberti–Vargas, Carolina Gutierrez, Chuanhui Dong, Jorge Sanchez, Dianne Foster, Jose’ G Romano, Ralp L Sacco, Tatȷana Rundek Tags: Poster Abstract Presentations Source Type: research
