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Resistent hypertension

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https://www.readbyqxmd.com/read/29352146/effects-of-renal-denervation-on-cardiac-structural-and-functional-abnormalities-in-patients-with-resistant-hypertension-or-diastolic-dysfunction
#1
Shiying Wang, Suxia Yang, Xinxin Zhao, Jun Shi
The aim of the present study is to systematically evaluate the impact of RDN on cardiac structure and function in patients with resistant hypertension (RH) or diastolic dysfunction. We retrieved Pubmed, Embase and Cocharane Library databases, from inception to April 1st, 2016. Studies reporting left ventricular mass (LVMI) or left ventricular (LV) diastolic function (reflected by the ratio of mitral inflow velocity to annular relaxation velocity [E/e']) responses to RDN were included. Two randomized controlled trials (RCTs), 3 controlled studies and 11 uncontrolled studies were finally identified...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351480/mechanistically-different-effects-of-fat-and-sugar-on-insulin-resistance-hypertension-and-gut-microbiota-in-rats
#2
Sara Ramos-Romero, Mercè Hereu, Lidia Atienza, Josefina Casas, Olga Jáuregui, Susana Amézqueta, Gabriel Dasilva, Isabel Medina, Maria Rosa Nogués, Marta Romeu, Josep Lluís Torres
Insulin resistance (IR) and impaired glucose tolerance (IGT) are the first manifestations of diet-induced metabolic alterations leading to type-2 diabetes, while hypertension is the deadliest risk factor of cardiovascular disease. The roles of dietary fat and fructose in the development of IR, IGT and hypertension are controversial. We tested the long-term effects of an excess of fat or sucrose (fructose/glucose) on healthy male Wistar Kyoto (WKY) rats. Fat affects IR and IGT earlier than fructose through low-grade systemic inflammation evidenced by liver inflammatory infiltration, increased levels of plasma interleukin-6, prostaglandin E2 and reduced levels of protective short-chain fatty acids without triggering hypertension...
January 2, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351460/macrophage-dependent-impairment-of-%C3%AE-2-adrenergic-autoreceptor-function-in-sympathetic-neurons-from-doca-salt-but-not-high-fat-diet-induced-hypertensive-rats
#3
Ryan Kwun-Yee Mui, Roxanne Fernandes, Hannah Garver, Nico van Rooijen, James J Galligan
DOCA-salt and obesity-related hypertension are associated with inflammation and sympathetic nervous system hyperactivity. Prejunctional α2-adrenergic receptors (α2ARs) provide negative feedback to norepinephrine release from sympathetic nerves through inhibition of N-type Ca2+ channels. Increased neuronal norepinephrine release in DOCA-salt and obesity-related hypertension occurs through impaired α2AR signaling, however, the mechanisms involved are unclear. Mesenteric arteries are resistance arteries that receive sympathetic innervation from the superior mesenteric and celiac ganglia (SMCG)...
January 5, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29351227/differential-association-of-cx37-and-cx40-genetic-variants-in-atrial-fibrillation-with-and-without-underlying-structural-heart-disease
#4
Sebastian Carballo, Anna Pfenniger, David Carballo, Nicolas Garin, Richard W James, François Mach, Dipen Shah, Brenda R Kwak
Atrial fibrillation (AF) appears in the presence or absence of structural heart disease. The majority of foci causing AF are located near the ostia of pulmonary veins (PVs), where cardiomyocytes and vascular smooth muscle cells interdigitate. Connexins (Cx) form gap junction channels and participate in action potential propagation. Genetic variants in genes encoding Cx40 and Cx37 affect their expression or function and may contribute to PV arrhythmogenicity. DNA was obtained from 196 patients with drug-resistant, symptomatic AF with and without structural heart disease, who were referred for percutaneous catheter ablation...
January 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29350998/overexpression-of-the-neuronal-human-pro-renin-receptor-mediates-angiotensin-ii-independent-blood-pressure-regulation-in-the-central-nervous-system
#5
Hua Peng, Dane D Jensen, Wencheng Li, Michelle N Sullivan, Sophie A Buller, Caleb J Worker, Silvana G Cooper, Shiqi Zheng, Scott Earley, Curt D Sigmund, Yumei Feng
Despite advances in anti-hypertensive therapeutics, at least 15-20% of hypertensive patients have resistant hypertension through mechanisms that remain poorly understood. In this study, we provide a new mechanism for regulation of blood pressure (BP) in the central nervous system (CNS) by the (pro)renin receptor (PRR), a recently identified component of the renin-angiotensin system (RAS) that mediates angiotensin II (Ang II) formation in the CNS. Although the PRR also mediates Ang II-independent signaling, the importance of these pathways in BP regulation is unknown...
December 15, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29350016/biomarkers-of-treatment-efficacy-in-patients-with-chronic-spontaneous-urticaria
#6
M Sánchez-Borges, A Capriles-Hulett, F Caballero-Fonseca, L González-Aveledo
Background. Currently there are no biomarkers useful to predict the future evolution and the therapeutic response in patients with chronic spontaneous urticaria (CSU). Objective. To review the available information on biomarkers that might be applied for the follow up of the response to guideline recommended therapies for CSU. Methods. A review of the medical literature on CSU potential clinical and laboratory biomarkers in PubMed and MEDLINE including the terms urticaria, chronic urticaria, chronic idiopathic urticaria, chronic spontaneous urticaria, antihistamines (AHs), omalizumab (OMA), cyclosporine (CyA), and treatment...
January 2018: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29349834/drug-adherence-in-treatment-resistant-and-in-controlled-hypertension-results-from-the-swedish-primary-care-cardiovascular-database-spccd
#7
Lina Holmqvist, Kristina Bengtsson Boström, Thomas Kahan, Linus Schiöler, Miriam Qvarnström, Björn Wettermark, Per Hjerpe, Jan Hasselström, Karin Manhem
PURPOSE: To assess drug adherence in patients treated with ≥3 antihypertensive drug classes, with both controlled and uncontrolled blood pressure and describe associated factors for nonadherence. METHODS: Patients with hypertension, without cardiovascular comorbidity, aged >30 years treated with ≥3 antihypertensive drug classes were followed for 2 years. Both patients with treatment resistant hypertension (TRH) and patients with controlled hypertension were included...
January 19, 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29348994/the-association-of-mediterranean-diet-and-exercise-modifications-with-anthropometric-parameters-in-a-psychiatric-community-population-a-pilot-study
#8
Rosaria Di Lorenzo, Jessica Pedretti, Letizia Grossi, Benedetta Cuoghi, Cinzia Varni, Giulia Landi, Ludovica Spattini, Chiara Visentini, Paola Ferri, Francesca Carubbi
Weight gain and related metabolic syndrome (MS) are major current issues in public health. MS consists of abdominal fat, atherogenic dyslipidemia, hypertension, hyperglycemia, insulin resistance, pro-inflammatory and pro-thrombotic state, and accounts for both cardiovascular diseases and type II diabetes mellitus risk factors. Patients affected by psychiatric illness present a prevalence of 35-40% of MS. Many studies have shown that Mediterranean diet is associated with the reduction of mortality due to cardiovascular and malignant diseases, potentially preventing both obesity and type II diabetes mellitus...
March 2018: Preventive Medicine Reports
https://www.readbyqxmd.com/read/29346014/role-of-the-lymphatic-system-in-the-pathogenesis-of-hypertension-in-humans
#9
Angelika Chachaj, Bartosz Puła, Mariusz Chabowski, Jędrzej Grzegrzółka, Ewa Szahidewicz-Krupska, Maciej Karczewski, Dariusz Janczak, Piotr Dzięgiel, Marzenna Podhorska-Okołów, Grzegorz Mazur, Andrzej Gamian, Andrzej Szuba
BACKGROUND: Recent studies, mainly on animal models, have suggested that negatively charged glycosaminoglycans, macrophages, and lymph vessels in the skin interstitium may serve as extrarenal control of sodium balance and blood pressure. The aim of the study was to prove the hypothesis that skin interstitium has a role in the pathogenesis of hypertension in humans. METHODS AND RESULTS: We have examined skin biopsies in 91 patients from the department of surgery who had elective surgery with abdominal skin incision: 43 were hypertensive, 14 had resistant hypertension, and 34 with normal blood pressure as control group (median patients' age in these groups estimated accordingly 64 vs...
January 18, 2018: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/29345195/mitochondrial-dysfunction-and-pulmonary-hypertension-cause-effect-or-both
#10
Jeffrey D Marshall, Isabel Bazan, Yi Zhang, Wassim H Fares, Patty J Lee
Pulmonary hypertension describes a heterogeneous disease defined by increased pulmonary artery pressures, and progressive increase in pulmonary vascular resistance due to pathologic remodeling of the pulmonary vasculature involving pulmonary endothelial cells, pericytes, and smooth muscle cells.  This process occurs under various conditions, and though these populations vary, the clinical manifestations are the same: progressive dyspnea, increases in right ventricular (RV) afterload and dysfunction, RV-pulmonary artery uncoupling, and right-sided heart failure with systemic circulatory collapse...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29344052/manidipine-an-antihypertensive-drug-with-positive-effects-on-metabolic-parameters-and-adrenergic-tone-in-patients-with-diabetes
#11
REVIEW
Margarita SaizSatjes, Francisco Javier Martinez-Martin
Antihypertensive treatment of patients with diabetes should include those drugs with a positive effect on metabolic parameters. Most patients with diabetes require at least two antihypertensive agents. Combining a dihydropyridine calcium channel blocker with a renin-angiotensin-aldosterone system inhibitor is a rational approach. However, not all dihydropyridines are equal with respect to their effects on metabolic parameters. Thus, manidipine exerts a positive effect on insulin resistance. However, this effect has not been observed with amlodipine...
2018: Drugs in Context
https://www.readbyqxmd.com/read/29344025/insulin-resistance-in-kidney-disease-is-there-a-distinct-role-separate-from-that-of-diabetes-or-obesity
#12
REVIEW
Adam Whaley-Connell, James R Sowers
Insulin resistance is a central component of the metabolic dysregulation observed in obesity, which puts one at risk for the development of type 2 diabetes and complications related to diabetes such as chronic kidney disease. Insulin resistance and compensatory hyperinsulinemia place one at risk for other risk factors such as dyslipidemia, hypertension, and proteinuria, e.g., development of kidney disease. Our traditional view of insulin actions focuses on insulin-sensitive tissues such as skeletal muscle, liver, adipose tissue, and the pancreas...
December 2017: Cardiorenal Medicine
https://www.readbyqxmd.com/read/29343014/-correlation-between-peripheral-venous-oxygen-saturation-and-hemodynamic-parameters-in-patients-with-pulmonary-hypertension
#13
C Hong, J Y Li, R K Chen, C L Liu, X N Wang, S M Qing, X F Su, N F Zhang
Objective: To investigate the correlation of peripheral venous oxygen saturation (SpvO(2)) with mixed venous oxygen saturation (SvO(2)), pulmonary vascular resistance (PVR) and cardiac index (CI) in patients with pulmonary hypertension (PH), in order to predict these parameters using SpvO(2) and assess the prognosis of patients. Methods: Hospitalized patients diagnosed with PH by right heart catheterization in the Guangzhou Institute of Respiratory Diseases from July 2015 to October 2016 were retrospectively analyzed...
January 12, 2018: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29342993/-analysis-of-prognosis-and-associated-risk-factors-in-pediatric-idiopathic-pulmonary-arterial-hypertension
#14
Q Liu, C Zhang, Q Q Li, Y Zhu, D Zhang, W G Zhao, H Gu
Objective: To analyze the prognosis and associated risk factors of pediatric idiopathic pulmonary arterial hypertension. Methods: A total of 119 patients under 18 years of age diagnosed as idiopathic pulmonary arterial hypertension in the Pulmonary Arterial Hypertension Center in Beijing Anzhen Hospital between June 2007 and May 2017 were enrolled in this retrospective study. The clinical informations and follow-up data were collected. The endpoints of follow-up were defined as death or undergoing lung transplantation...
January 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29342113/mitochondria-oxidative-stress-and-the-kynurenine-system-with-a-focus-on-ageing-and-neuroprotection
#15
REVIEW
Katalin Sas, Elza Szabó, László Vécsei
In this review, the potential causes of ageing are discussed. We seek to gain insight into the main physiological functions of mitochondria and discuss alterations in their function and the genome, which are supposed to be the central mechanisms in senescence. We conclude by presenting the potential modulating role of the kynurenine pathway in the ageing processes. Mitochondrial dynamics are supposed to have important physiological roles in maintaining cell homeostasis. During ageing, a decrease in mitochondrial dynamics was reported, potentially compromising the function of mitochondria...
January 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29341865/evidence-of-genetic-predisposition-for-metabolically-healthy-obesity-and-metabolically-obese-normal-weight
#16
Lam Opal Huang, Ruth Loos, Tuomas Oskari Kilpeläinen
Obesity has evolved into a global pandemic, which constitutes a major threat to public health. The majority of obesity-related health care costs are due to cardiometabolic complications, such as insulin resistance, dyslipidemia, and hypertension, which are risk factors for type 2 diabetes and cardiovascular disease. However, many obese individuals, often called metabolically healthy obese (MHO), seem to be protected from these cardiometabolic complications. Conversely, there is a group of individuals who suffer from cardiometabolic complications despite being of normal weight; a condition termed metabolically obese normal weight (MONW)...
December 20, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29340731/sensitive-cardiac-troponins-could-they-be-new-biomarkers-in-pediatric-pulmonary-hypertension-due-to-congenital-heart-disease
#17
Seyma Kayali, Ilker Ertugrul, Tamer Yoldas, Ozkan Kaya, Senem Ozgür, Utku A Orün, Selmin Karademir
To analyze the role of sensitive cardiac troponin I (scTnI) and high-sensitive troponin T (hscTnT) in the determination of myocardial injury caused by volume and pressure load due to pulmonary hypertension (PH) and to investigate if these markers may be useful in the management of PH in childhood. Twenty-eight patients with congenital heart disease (CHD) with left to right shunt and PH, 29 patients with CHD with left to right shunt but without PH, and 18 healthy children, in total 75 individuals, were included in the study...
January 16, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29339763/glucocorticoid-receptor-gr%C3%AE-regulates-glucocorticoid-induced-ocular-hypertension-in-mice
#18
Gaurang C Patel, Yang Liu, J Cameron Millar, Abbot F Clark
Prolonged glucocorticoid (GC) therapy can cause GC-induced ocular hypertension (OHT), which if left untreated progresses to iatrogenic glaucoma and permanent vision loss. The alternatively spliced isoform of glucocorticoid receptor GRβ acts as dominant negative regulator of GR activity, and it has been shown that overexpressing GRβ in trabecular meshwork (TM) cells inhibits GC-induced glaucomatous damage in TM cells. The purpose of this study was to use viral vectors to selectively overexpress the GRβ isoform in the TM of mouse eyes treated with GCs, to precisely dissect the role of GRβ in regulating steroid responsiveness...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339044/the-cardiovascular-toxicity-of-abiraterone-and-enzalutamide-in-prostate-cancer
#19
Roberto Iacovelli, Chiara Ciccarese, Emilio Bria, Mario Romano, Emanuela Fantinel, Davide Bimbatti, Alessandro Muraglia, Antonio Benito Porcaro, Salvatore Siracusano, Matteo Brunelli, Renzo Mazzarotto, Walter Artibani, Giampaolo Tortora
INTRODUCTION: The cardiovascular toxicity related to abiraterone and enzalutamide has been previously studied by our group. In this analysis, we aim to update our previous findings related to abiraterone and enzalutamide, including the new available evidence, both in castration-resistant and hormone-sensitive prostate cancer. PATIENTS AND METHODS: Prospective studies were identified by searching the MEDLINE/PubMed, Cochrane Library, and ASCO Meeting abstracts. Combined relative risks (RRs) and 95% confidence intervals (CIs) were calculated using fixed- or random-effects methods...
December 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29336612/relationship-among-adiponectin-insulin-resistance-and-atherosclerosis-in-non-diabetic-hypertensive-patients-and-healthy-adults
#20
Huijuan Kou, Jie Deng, Dengfeng Gao, Anqi Song, Zhenhua Han, Jin Wei, Xin Jin, Rui Ma, Qiangsun Zheng
Adiponectin, which is secreted specifically by adipose tissue, has been shown to have anti-atherogenic and anti-inflammatory effects and to improve insulin resistance (IR). The aim of this study was to determine the correlations among adiponectin, IR and atherosclerosis in non-diabetic hypertensive patients and healthy volunteers. In this case control study, we collected complete demographic data from and measured several laboratory parameters in all enrolled subjects. The homeostasis model of assessment for insulin resistance (HOMA-IR) was calculated as an insulin sensitivity index...
January 16, 2018: Clinical and Experimental Hypertension: CHE
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