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isolated systolic hypertension

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https://www.readbyqxmd.com/read/28533575/antihypertensive-effects-of-hydroalcoholic-extract-of-crataegus-azarolus-subspecies-aronia-fruit-in-rats-with-renovascular-hypertension-an-experimental-mechanistic-study
#1
Mohammad Reza Haydari, Mohammad Reza Panjeshahin, Elaheh Mashghoolozekr, Ali Akbar Nekooeian
BACKGROUND: Hawthorn species decreases blood pressure and relaxes precontracted vessels. This study aimed at examining the antihypertensive effect and related mechanisms of hydroalcoholic extract of Crataegus azarolus subspecies aronia fruit in rats with renovascular hypertension. METHODS: Six groups of male Sprague-Dawley rats, each containing 6 to 8 rats, were studied. The groups comprised of one sham group and 5 renal artery-clipped groups. The sham group received vehicle (distilled water 0...
May 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28531295/right-ventricular-vascular-coupling-in-heart-failure-with-preserved-ejection-fraction-and-pre-vs-post-capillary-pulmonary-hypertension
#2
Thomas M Gorter, Dirk J van Veldhuisen, Adriaan A Voors, Yoran M Hummel, Carolyn S P Lam, Rolf M F Berger, Joost P van Melle, Elke S Hoendermis
Aims: Many patients with heart failure with preserved ejection fraction (HFpEF) develop post-capillary pulmonary hypertension (PH) due to increased left-sided filling pressures. However, a subset of patients develops combined post- and pre-capillary PH. We studied the value of echocardiographic right-sided characterization for the discrimination between pre- vs. post-capillary PH in HFpEF, using invasive haemodynamics as gold standard. Methods and results: 102 consecutive HFpEF patients with simultaneous right heart catheterization and echocardiography were identified...
May 22, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28526818/essential-hypertension-a-filtered-serum-based-metabolomics-study
#3
Keerti Ameta, Ashish Gupta, Sudeep Kumar, Rishi Sethi, Deepak Kumar, Abbas Ali Mahdi
Despite the easy and reliable methods of blood pressure measurement, the screening of essential hypertension (EH) is usually ignored due to delayed onset of symptoms. A probe into the biochemical changes in hypertension would serve as a welcome asset to provide insight into the mechanistic aspects of EH. Filtered serum samples from 64 EH patients and 59 healthy controls (HC) were analysed using 800 MHz nuclear magnetic resonance (NMR) spectroscopy. Application of principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) following receiver operating characteristic (ROC) curve of NMR data reveals significantly perturbed metabolites: alanine, arginine, methionine, pyruvate, adenine, and uracil...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515119/pulse-wave-velocity-predicts-response-to-renal-denervation-in-isolated-systolic-hypertension
#4
Karl Fengler, Karl-Philipp Rommel, Robert Hoellriegel, Stephan Blazek, Christian Besler, Steffen Desch, Gerhard Schuler, Axel Linke, Philipp Lurz
BACKGROUND: Renal sympathetic denervation seems to be less effective as a treatment for hypertension in patients with isolated systolic hypertension, a condition associated with elevated central arterial stiffness. Because isolated systolic hypertension can also be caused by wave reflection or increased cardiac output, a more differentiated approach might improve patient preselection for renal sympathetic denervation. We sought to evaluate the additional predictive value of invasive pulse wave velocity for response to renal sympathetic denervation in patients with combined versus isolated systolic hypertension...
May 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28512115/endogenous-hydrogen-sulfide-enhances-carotid-sinus-baroreceptor-sensitivity-by-activating-the-transient-receptor-potential-cation-channel-subfamily-v-member-1-trpv1-channel
#5
Wen Yu, Ying Liao, Yaqian Huang, Selena Y Chen, Yan Sun, Chufan Sun, Yuming Wu, Chaoshu Tang, Junbao Du, Hongfang Jin
BACKGROUND: We aimed to investigate the regulatory effects of hydrogen sulfide (H2S) on carotid sinus baroreceptor sensitivity and its mechanisms. METHODS AND RESULTS: Male Wistar-Kyoto rats and spontaneously hypertensive rats (SHRs) were used in the experiment and were given an H2S donor or a cystathionine-β-synthase inhibitor, hydroxylamine, for 8 weeks. Systolic blood pressure and the cystathionine-β-synthase/H2S pathway in carotid sinus were detected. Carotid sinus baroreceptor sensitivity and the functional curve of the carotid baroreceptor were analyzed using the isolated carotid sinus perfusion technique...
May 16, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28507172/hemodynamic-and-mechanical-properties-of-the-proximal-aorta-in-young-and-middle-aged-adults-with-isolated-systolic-hypertension-the-dallas-heart-study
#6
Yuichiro Yano, Ian J Neeland, Colby Ayers, Ronald Peshock, Jarett D Berry, Donald M Lloyd-Jones, Philip Greenland, Gary F Mitchell, Wanpen Vongpatanasin
The aim of this study was to assess characteristic impedance (Zc) of the proximal aorta in young and middle-aged individuals with isolated systolic hypertension (ISH). Zc is an index of aortic stiffness relative to aortic size. In the Dallas Heart Study, 2001 untreated participants 18 to 64 years of age (mean age: 42.3 years; 44% black race) were divided into the following groups based on office blood pressure (BP) measurements: (1) optimal BP (systolic BP [SBP] <120 mm Hg and diastolic BP [DBP] <80 mm Hg; n=837); (2) prehypertension (SBP 120-139 mm Hg and DBP 80-89 mm Hg; n=821); (3) ISH (SBP ≥140 mm Hg and DBP <90 mm Hg; n=121); (4) isolated diastolic hypertension (SBP <140 mm Hg and DBP ≥90 mm Hg; n=44); and (5) systolic-diastolic hypertension (SBP ≥140 mm Hg and DBP ≥90 mm Hg; n=178)...
May 15, 2017: Hypertension
https://www.readbyqxmd.com/read/28497617/association-of-npr3-polymorphism-with-risk-of-essential-hypertension-in-a-chinese-population
#7
D-B Kuang, J-P Zhou, M-P Li, J Tang, X-P Chen
WHAT IS KNOWN AND OBJECTIVE: Essential hypertension (EH) is a common disease exhibiting large individual difference in occurrence, development and treatment response. Genetic factors are implicated in the development and progression of EH. This study aimed to explore the association between NPR3 single nucleotide polymorphism rs2270915 (A/G, Asn521Asp) and the risk of EH in a Chinese Han population by a case-control study. METHODS: The study was a single-centre, case-control trial, in which a total of 287 EH patients and 289 age- and sex-matched healthy controls were enrolled...
May 11, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28487149/corrigendum-to-systolic-diastolic-hypertension-versus-isolated-systolic-hypertension-and-incident-heart-failure-in-older-adults-insights-from-the-cardiovascular-health-study-int-j-cardiol-235-2017-11-16
#8
Apostolos Tsimploulis, Helen M Sheriff, Phillip H Lam, Daniel J Dooley, Markus S Anker, Vasilios Papademetriou, Ross D Fletcher, Charles Faselis, Gregg C Fonarow, Prakash Deedwania, Michel White, Miroslava Valentova, Marc R Blackman, Maciej Banach, Charity J Morgan, Kannayiram Alagiakrishnan, Richard M Allman, Wilbert S Aronow, Stefan D Anker, Ali Ahmed
No abstract text is available yet for this article.
May 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28480636/the-relationship-between-neutrophil-to-lymphocyte-ratio-and-artery-stiffness-in-subtypes-of-hypertension
#9
Huan Wang, Yuanhui Hu, Yanting Geng, Huaqin Wu, Yuguang Chu, Ruihua Liu, Yi Wei, Zhiling Qiu
Recently, neutrophil/lymphocyte ratio (NLR) has been proved to be a useful indicator of inflammation and cardiovascular risk. Brachial-ankle pulse wave velocity is an indicator for early atherosclerotic changes. It is unknown whether NLR differs in subtypes of hypertension, and little research has been performed on the relationship between NLR and arteriosclerosis in subtypes of hypertension. The purpose of this article was to investigate their relationship. A total of 217 consecutive patients with hypertension and 132 persons without hypertension were included...
May 7, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28480585/synthesis-and-biological-evaluation-of-new-combined-%C3%AE-%C3%AE-adrenergic-blockers
#10
Andrej Némethy, Peter Vavrinec, Diana Vavrincová-Yaghi, Diana Čepcová, Svetozár Mišúth, Eva Král'ová, Ružena Čižmáriková, Eva Račanská
The synthesis, characterization, and pharmacological evaluation of new aryloxyaminopropanol compounds based on substituted (4-hydroxyphenyl)ethanone with alterations in the alkoxymethyl side chain in position 2 and with 2-methoxyphenylpiperazine in the basic part of the molecule are reported. For the in vitro pharmacological evaluation, isolated aorta and atria from normotensive Wistar rats were used. Compared to naftopidil, compounds with ethoxymethyl, propoxymethyl, butoxymethyl, and methoxyethoxymethyl substituent displayed similar α1 -adrenolytic potency...
May 8, 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28479908/determinants-of-isolated-systolic-hypertension-among-diabetic-patients-visiting-the-diabetic-clinic-at-the-tamale-teaching-hospital-northern-ghana
#11
Richard Kd Ephraim, Abdul-Razak Saasi, Enoch O Anto, Prince Adoba
BACKGROUND: Hypertension and diabetes mellitus, two of the leading risk factors for atherosclerosis, are associated with numerous complications, including heart attacks and strokes. AIM: This study established the prevalence and determinants of isolated systolic hypertension (ISH) in diabetes mellitus patients visiting the Tamale Teaching Hospital. MATERIALS AND METHODS: In this purposive cross-sectional study, 107 diabetes mellitus patients were recruited from the out-patient diabetes clinic of the Tamale Teaching Hospital (TTH)...
December 2016: African Health Sciences
https://www.readbyqxmd.com/read/28450224/pinocembrin-ex-vivo-preconditioning-improves-the-therapeutic-efficacy-of-endothelial-progenitor-cells-in-monocrotaline-induced-pulmonary-hypertension-in-rats
#12
Lamiaa A Ahmed, Sherine M Rizk, Shohda A El-Maraghy
Pulmonary hypertension is still not curable and the available current therapies can only alleviate symptoms without hindering the progression of disease. The present study was directed to investigate the possible modulatory effect of pinocembrin on endothelial progenitor cells transplanted in monocrotaline-induced pulmonary hypertension in rats. Pulmonary hypertension was induced by a single subcutaneous injection of monocrotaline (60 mg/kg). Endothelial progenitor cells was in vitro preconditioned with pinocembrin (25 mg/L) for 30 min before being i...
April 24, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28444926/which-blood-pressure-measurement-systolic-or-diastolic-better-predicts-future-hypertension-in-normotensive-young-adults
#13
Hiroshi Kanegae, Takamitsu Oikawa, Yukie Okawara, Satoshi Hoshide, Kazuomi Kario
The impact of age-related differences in blood pressure (BP) components on new-onset hypertension is not known. A follow-up examination of 93 303 normotensive individuals (mean age 41.1 years) who underwent a health checkup in 2005 was conducted every year for 8 years. The primary end point was new-onset hypertension (systolic BP [SBP]/diastolic BP [DBP] ≥140/90 mm Hg and/or the initiation of antihypertensive medications with self-reported hypertension). During the mean 4.9 years of follow-up, 14 590 subjects developed hypertension...
April 26, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28424510/the-effect-of-slow-loaded-breathing-training-on-the-blood-pressure-response-to-handgrip-exercise-in-patients-with-isolated-systolic-hypertension
#14
Chulee Ubolsakka-Jones, Benjarat Sangthong, Wilaiwan Khrisanapant, David A Jones
Isolated systolic hypertension (ISH) is the most common form of hypertension in older people. It is characterized by increased resting systolic blood pressure (sBP) and increased sBP in response to exercise. It has previously been shown that slow breathing training reduces resting sBP, and the objective of the present study was to determine whether it also reduced the blood pressure response to static handgrip exercise. ISH patients aged between 60 and 74 years were randomly divided into a control group (10 subjects, 4 of which were male) that breathed normally and a trained group (10 subjects, 4 of which were male) that trained daily for 8 weeks by slow breathing against an inspiratory resistance of 18 cmH2O...
April 20, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28414077/hypotensive-acute-effect-of-photobiomodulation-therapy-on-hypertensive-rats
#15
J C Oishi, T F De Moraes, T C Buzinari, E C Cárnio, N A Parizotto, G J Rodrigues
The purpose of this study was to evaluate the acute effect of photobiomodulation therapy (PBM) on arterial pressure in hypertensive and normotensive rats with application in an abdominal region. Normotensive (2K) and hypertensive (2K-1C) wistar rats were treated with PBM. Systolic arterial pressure (SAP), diastolic arterial pressure (DAP), mean arterial pressure (MAP) and heart rate (HR) were measured before, during and after PBM application. The nitric oxide (NO) serum concentration was measured before and after PBM application...
June 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28405802/vasculo-protective-effect-of-bms-309403-is-independent-of-its-specific-inhibition-of-fatty-acid-binding-protein-4
#16
Yuta Okamura, Kosuke Otani, Akihiro Sekiguchi, Taisuke Kogane, Chiharu Kakuda, Yuzaburo Sakamoto, Tomoko Kodama, Muneyoshi Okada, Hideyuki Yamawaki
Fatty acid-binding protein (FABP) 4 is an adipocytokine mainly expressed in adipocyte and macrophage. Blood FABP4 is related not only to metabolic disorders including insulin resistance and atherosclerosis but also increased blood pressure. We tested the hypothesis that FABP4 plays roles in pathogenesis of hypertension development including proliferation, migration, and inflammation of vascular smooth muscle cells (SMCs) as well as contractile reactivity. FABP4 alone had no influence on proliferation, migration, and inflammation of rat mesenteric arterial SMCs, while it significantly enhanced smooth muscle contraction and increases of systolic blood pressure (SBP) induced by noradrenaline (NA)...
April 13, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28402512/defective-trophoblast-invasion-underlies-fetal-growth-restriction-and-pre-eclampsia-like-symptoms-in-the-stroke-prone-spontaneously-hypertensive-rat
#17
G Barrientos, M Pussetto, M Rose, A C Staff, S M Blois, J E Toblli
STUDY QUESTION: What is the impact of chronic hypertension on placental development, fetal growth and maternal outcome in the stroke-prone spontaneously hypertensive rat (SHRSP)? SUMMARY ANSWER: SHRSP showed an impaired remodeling of the spiral arteries and abnormal pattern of trophoblast invasion during placentation, which were associated with subsequent maternal glomerular injury and increased baseline hypertension as well as placental insufficiency and asymmetric fetal growth restriction...
April 11, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28374153/isolated-systolic-hypertension-in-young-individuals-pathophysiological-mechanisms-prognostic-significance-and-clinical-implications
#18
Francesca Saladini, Paolo Palatini
Isolated systolic hypertension (ISH) is the most common form of hypertension in older persons and its predictive value for adverse outcome is well known. However, ISH can be frequently found also in young individuals, especially among males, but its prognostic significance in this setting is still controversial. Increased large artery stiffness is the main determinant of ISH in elderly patients whereas the mechanisms that lead to ISH in the young are still debated. According to some authors ISH in youth is a totally benign condition that can be called "spurious hypertension" a phenomenon due to enhanced pulse pressure amplification of the pulse wave from central to peripheral sites...
April 3, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28349252/prevalence-of-childhood-hypertension-and-hypertension-phenotypes-by-weight-status-and-waist-circumference-the-healthy-growth-study
#19
Yannis Manios, K Karatzi, A D Protogerou, G Moschonis, C Tsirimiagou, O Androutsos, C Lionis, G P Chrousos
PURPOSE: The aim of the present study was to report for the first time the prevalence of hypertension and its phenotypes in obese children and in children with central obesity in a large sample of Greek children. METHODS: A regionally representative sample of 2263 schoolchildren (50.3% boys) (9-13 years) having full data on blood pressure assessment, physical examination, anthropometric, and physical activity participated in a cross-sectional study in Greece. RESULTS: Prevalence of stage 1 and 2 hypertension, of isolated systolic hypertension (ISH) and of combined systolic or diastolic hypertension, was significantly higher for obese children and children on the 3rd tertile of waist circumference in the total sample, as well as in each gender separately...
March 27, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28343761/isolated-diastolic-hypertension-and-incident-heart-failure-in-community-dwelling-older-adults-insights-from-the-cardiovascular-health-study
#20
Helen M Sheriff, Apostolos Tsimploulis, Miroslava Valentova, Markus S Anker, Prakash Deedwania, Maciej Banach, Charity J Morgan, Marc R Blackman, Gregg C Fonarow, Michel White, Kannayiram Alagiakrishnan, Richard M Allman, Wilbert S Aronow, Stefan D Anker, Ali Ahmed
BACKGROUND: Isolated systolic hypertension and isolated diastolic hypotension are common in older adults and associated with a higher risk of incident heart failure (HF). However, little is known about the prevalence and impact of isolated diastolic hypertension in this population. METHODS: In the Cardiovascular Health Study (CHS), of the 5776 community-dwelling older adults ≥65years who had data on baseline systolic and diastolic blood pressure (SBP and DBP), 28 had isolated diastolic hypertension (DBP ≥90mmHg and SBP <140mmHg)...
March 1, 2017: International Journal of Cardiology
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