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Systemic arterial hypertension

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https://www.readbyqxmd.com/read/28542544/development-and-characterization-of-an-experimental-model-of-diet-induced-metabolic-syndrome-in-rabbit
#1
Oscar Julián Arias-Mutis, Vannina G Marrachelli, Amparo Ruiz-Saurí, Antonio Alberola, Jose Manuel Morales, Luis Such-Miquel, Daniel Monleon, Francisco J Chorro, Luis Such, Manuel Zarzoso
Metabolic syndrome (MetS) has become one of the main concerns for public health because of its link to cardiovascular disease. Murine models have been used to study the effect of MetS on the cardiovascular system, but they have limitations for studying cardiac electrophysiology. In contrast, the rabbit cardiac electrophysiology is similar to human, but a detailed characterization of the different components of MetS in this animal is still needed. Our objective was to develop and characterize a diet-induced experimental model of MetS that allows the study of cardiovascular remodeling and arrhythmogenesis...
2017: PloS One
https://www.readbyqxmd.com/read/28541356/food-and-plant-bioactives-for-reducing-cardiometabolic-disease-risk-an-evidence-based-approach
#2
REVIEW
Arrigo F G Cicero, Federica Fogacci, Alessandro Colletti
Cardiovascular diseases (CVDs) are one of the major causes of mortality and disability in Western countries. Prevention is known to be the cornerstone to lessen the incidence of CVDs and also to reduce the economic burden of both the citizen and the healthcare system. "Interventional medicine" certainly puts lifestyle modification as the first therapeutic step, including a healthy diet and physical activity. Secondly, a large body of research individuated a number of food and plant bioactives, which are potentially efficacious in preventing and reducing some highly prevalent CV risk factors, such as hypercholesterolemia, hypertension, vascular inflammation and vascular compliance...
May 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28540933/the-effect-of-high-altitude-on-central-blood-pressure-and-arterial-stiffness
#3
C J Boos, E Vincent, A Mellor, D R Woods, C New, R Cruttenden, M Barlow, M Cooke, K Deighton, P Scott, S Clarke, J O'Hara
Central arterial systolic blood pressure (SBP) and arterial stiffness are known to be better predictors of adverse cardiovascular outcomes than brachial SBP. The effect of progressive high altitude (HA) on these parameters has not been examined. Ninety healthy adults were included. Central BP and the augmentation index (AI) were measured at the level of the brachial artery (Uscom BP(+) device) at <200 m and at 3619, 4600 and 5140 m. The average age of the subjects (70% men) were 32.2±8.7 years. Compared with central arterial pressures, brachial SBP (+8...
May 25, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28540841/lung-or-heart-lung-transplant-in-pulmonary-arterial-hypertension-what-is-the-impact-of-systemic-sclerosis
#4
Shruti K Gadre, Omar A Minai, Xiao-Feng Wang, Qi Zhang, Marie Budev, Adriano R Tonelli
OBJECTIVES: Little is known about recipient characteristics and outcomes of patients with pulmonary arterial hypertension undergoing lung transplant, particularly those with systemic sclerosis-associated disease. Here, we describe the characteristics and outcomes of patients with pulmonary arterial hypertension undergoing lung transplant, focusing on systemic sclerosis-associated disease. MATERIALS AND METHODS: This retrospective study included pulmonary arterial hypertension patients undergoing lung or heart-lung transplant between July 1992 and August 2013 at a single center...
May 22, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28540143/association-between-coronary-artery-disease-and-microrna-literature-review-and-clinical-perspective
#5
Rehan Malik, Raja S Mushtaque, Usman A Siddiqui, Adnan Younus, Muhammad A Aziz, Choudhry Humayun, Kanaan Mansoor, Muhammad A Latif, Salman Waheed, Salman Assad, Idrees Khan, Syed M Bukhari, Daniel DelCampo, Ali Adus, Swetha Gannarapu
BACKGROUND: Until recently, circulating micro-RNAs (miRNAs) have attracted major interest as novel biomarkers for the early diagnosis of coronary artery disease (CAD). This review article summarizes the available evidence on the correlation of micro-RNAs with both the clinical and subclinical coronary artery disease and highlights the necessity for exploring miRNAs as a potential diagnostic and prognostic biomarker of early CAD in an adult population. METHODS: A systematic literature analysis and retrieval online systems Public/Publisher MEDLINE/ Excerpta Medica Database /Medical Literature Analysis and Retrieval System Online,(PUBMED/EMBASE/MEDLINE) search were conducted for relevant information...
April 23, 2017: Curēus
https://www.readbyqxmd.com/read/28539563/development-of-a-basic-risk-score-for-incident-atrial-fibrillation-in-a-japanese-general-population%C3%A3-the-suita-study
#6
Yoshihiro Kokubo, Makoto Watanabe, Aya Higashiyama, Yoko M Nakao, Kengo Kusano, Yoshihiro Miyamoto
BACKGROUND: An atrial fibrillation (AF) risk score for a non-Western general population has not been established.Methods and Results:A total of 6,898 participants (30-79 years old) initially free of AF have been prospectively followed for incident AF since 1989. AF was diagnosed when AF or atrial flutter was present on ECG at a biannual health examination; was indicated as a current illness; or was in the medical records during follow-up. Cox proportional hazard ratios were analyzed after adjusting for cardiovascular risk factors at baseline...
May 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28538274/prevalence-of-pulmonary-embolism-among-systemic-lupus-erythematosus-discharges-a-decade-of-analysis-of-the-national-hospital-discharge-survey
#7
Srinadh Annangi, Tirumala Rao Dammalapati, Snigdha Nutalapati, Marshaleen N Henriques King
INTRODUCTION: Pulmonary embolism (PE) is a life threatening preventable medical condition involving sudden occlusion of arteries within the lungs. Systemic lupus erythematosus (SLE) is an inflammatory disorder and therefore independently poses a risk of PE. We aimed to determine the association of SLE and PE using National Hospital Discharge Survey data, a national representative sample of hospital discharges throughout the United States. METHODS: Retrospective population-based analysis was done using National Hospital Discharge Survey data for the period 2001 to 2010...
June 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28536140/angiotensin-converting-enzyme-1-in-the-median-preoptic-nucleus-contributes-to-chronic-intermittent-hypoxia-hypertension
#8
Katelynn E Faulk, T Prashant Nedungadi, J Thomas Cunningham
Obstructive sleep apnea is associated with hypertension and cardiovascular disease. Chronic intermittent hypoxia is used to model the arterial hypoxemia seen in sleep apnea patients and is associated with increased sympathetic nerve activity and a sustained diurnal increase in blood pressure. The renin angiotensin system has been associated with hypertension seen in chronic intermittent hypoxia. Angiotensin converting enzyme 1, which cleaves angiotensin I to the active counterpart angiotensin II, is present within the central nervous system and has been shown to be regulated by AP-1 transcription factors, such as ΔFosB...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28534012/association-of-isolated-single-umbilical-artery-with-perinatal-outcomes-systemic-review-and-meta-analysis
#9
Hyeong Ju Kim, Jae-Hoon Kim, Doo Byung Chay, Joo Hyun Park, Min-A Kim
OBJECTIVE: The aim of this study was to evaluate the association between prenatally diagnosed isolated single umbilical artery (iSUA) and perinatal outcomes. METHODS: We searched Medline, Embase, the Cochrane Library, and KoreaMed from inception to January 2016, with no language or regional restrictions, for cohort and case-control studies reporting on the relationship of iSUA and perinatal outcomes. We assessed the odds ratios (ORs) and 95% confidence intervals (CIs) for the occurrence of small for gestational age, preterm birth, pregnancy-induced hypertension, neonatal intensive care unit admission, and perinatal mortality in fetuses with iSUA compared with those in fetuses with three vessel cord...
May 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28533687/pulmonary-hypertension-and-vasculopathy-in-incontinentia-pigmenti-a-case-report
#10
Abduljabbar Alshenqiti, Marwan Nashabat, Hissah AlGhoraibi, Omar Tamimi, Majid Alfadhel
Incontinentia pigmenti (IP; Bloch-Sulzberger syndrome) is a rare, genetic syndrome inherited as an X-linked dominant trait. It primarily affects female infants and is lethal in the majority of males during fetal life. The clinical findings include skin lesions, developmental defects, and defects of the eyes, teeth, skeletal system, and central nervous system. Cardiovascular complications of this disease in general, and pulmonary hypertension in particular, are extremely rare. This report describes the case of a 3-year-old girl with IP complicated by pulmonary arterial hypertension...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28533331/chronic-stimulation-of-renin-cells-leads-to-vascular-pathology
#11
Masafumi Oka, Silvia Medrano, Maria Luisa S Sequeira-Lόpez, R Ariel Gómez
Experimental or spontaneous genomic mutations of the renin-angiotensin system or its pharmacological inhibition in early life leads to renal abnormalities, including poorly developed renal medulla, papillary atrophy, hydronephrosis, inability to concentrate the urine, polyuria, polydipsia, renal failure, and anemia. At the core of such complex phenotype is the presence of unique vascular abnormalities: the renal arterioles do not branch or elongate properly and they have disorganized, concentric hypertrophy...
May 22, 2017: Hypertension
https://www.readbyqxmd.com/read/28533073/the-impact-of-sevoflurane-on-coupling-of-the-left-ventricular-to-systemic-vasculature-in-rats-with-chronic-pulmonary-hypertension
#12
Lu Wang, Hui Luo, Gang Qin, Yanan Cao, Xiaowei Gao, Zhong Zhang, Zhi Ye, Junjie Zhang, Qulian Guo, E Wang
OBJECTIVES: The relationship between left ventricular function and afterload has not been investigated as much as the right ventricular function under chronic pulmonary hypertension (PH) during anesthesia. This study was designed to investigate effects of sevoflurane on the intrinsic coupling relationship between the left ventricle and systemic vasculature in the presence of PH. DESIGN: A randomized, controlled study. SETTING: University hospital...
February 13, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28532772/echocardiographic-predictors-for-worsening-of-six-minute-walk-distances-in-patients-with-systemic-sclerosis-scleroderma
#13
Kenya Kusunose, Hirotsugu Yamada, Susumu Nishio, Yukina Hirata, Hiromitsu Seno, Yoshihito Saijo, Takayuki Ise, Takeshi Tobiume, Koji Yamaguchi, Shusuke Yagi, Takeshi Soeki, Tetsuzo Wakatsuki, Masataka Sata
Change in 6-minute walk distance (6MWD) has been used as a clinical marker in pulmonary hypertension. Determinants and worsening of 6MWD remain a matter of debate because nonpulmonary factors have an impact on the 6MWD. We hypothesized that future reduction of 6MWD in patients with systemic sclerosis (SSc) was more closely associated with cardiac dysfunction. We prospectively performed standard clinical and echocardiographic evaluations in SSc patients with the 6-minute walk test at enrollment. Features associated with the 6MWD were sought in a multiple linear regression analysis and compared using standardized β...
April 26, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28532389/the-use-of-macitentan-in-fontan-circulation-a-case-report
#14
Polyvios Demetriades, Amir Aziz, Robin Condliffe, Sarah E Bowater, Paul F Clift
BACKGROUND: The Fontan circulation, a result of a palliative procedure in patients with single systemic ventricles, is defined by chronically elevated pulmonary vascular resistance. When traditional heart failure therapies fail, pharmacological agents that reduce pulmonary artery pressures may be used. These include endothelial-receptor antagonists, prostanoids and phosphodiesterase type 5 inhibitors. We report the first use of macitentan, an endothelin-receptor antagonist, in a patient with a Fontan circulation...
May 22, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28531827/safety-and-performance-of-the-second-generation-enlightn%C3%A2-renal-denervation-system-in-patients-with-drug-resistant-uncontrolled-hypertension
#15
Stephen G Worthley, Gerard T Wilkins, Mark W Webster, Joseph K Montarello, Sinny Delacroix, Robert J Whitbourn, Roderic J Warren
BACKGROUND AND AIMS: Catheter-based renal denervation for the treatment of drug-resistant hypertension has been intensively investigated in recent years. To date, only limited data have been published using multi-electrode radiofrequency ablation systems that can deliver lesions with a pre-determined pattern. This study was designed to evaluate the safety and performance of the second generation EnligHTN™ Renal Denervation System. METHODS: This first-in-human, prospective, multi-center, non-randomized study included 39 patients (62% male, mean age 63 years, and mean baseline office blood pressure 174/93 mmHg) with drug-resistant hypertension...
May 3, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28529483/identification-of-a-novel-allosteric-inhibitory-site-on-tryptophan-hydroxylase-1-enabling-unprecedented-selectivity-over-all-related-hydroxylases
#16
Mike Petrassi, Rob Barber, Celine Be, Sarah Beach, Brian Cox, Anne-Marie D'Souza, Nick Duggan, Martin Hussey, Roy Fox, Peter Hunt, Gabor Jarai, Takatoshi Kosaka, Paul Oakley, Viral Patel, Neil Press, David Rowlands, Clemens Scheufler, Oliver Schmidt, Honnappa Srinivas, Mary Turner, Rob Turner, John Westwick, Alison Wolfreys, Nuzhat Pathan, Simon Watson, Matthew Thomas
Pulmonary arterial hypertension (PAH) has demonstrated multi-serotonin receptor dependent pathologies, characterized by increased tone (5-HT1B receptor) and complex lesions (SERT, 5-HT1B, 5-HT2B receptors) of the pulmonary vasculature together with right ventricular hypertrophy, ischemia and fibrosis (5-HT2B receptor). Selective inhibitors of individual signaling elements - SERT, 5-HT2A, 5HT2B, and combined 5-HT2A/B receptors, have all been tested clinically and failed. Thus, inhibition of tryptophan hydroxylase 1 (TPH1), the rate limiting step in 5-HT synthesis, has been suggested as a more broad, and thereby more effective, mode of 5-HT inhibition...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28528846/the-multi-level-impact-of-chronic-intermittent-hypoxia-on-central-auditory-processing
#17
Eddie Wong, Bin Yang, Lida Du, Wai Hong Ho, Condon Lau, Ya Ke, Ying Shing Chan, Wing Ho Yung, Ed X Wu
During hypoxia, the tissues do not obtain adequate oxygen. Chronic hypoxia can lead to many health problems. A relatively common cause of chronic hypoxia is sleep apnea. Sleep apnea is a sleep breathing disorder that affects 3 to 7% of the population. During sleep, the patient's breathing starts and stops. This can lead to hypertension, attention deficits, and hearing disorders. In this study, we apply an established chronic intermittent hypoxemia (CIH) model of sleep apnea to study its impact on auditory processing...
May 18, 2017: NeuroImage
https://www.readbyqxmd.com/read/28528375/hypothalamic-signaling-in-body-fluid-homeostasis-and-hypertension
#18
REVIEW
Brian J Kinsman, Haley N Nation, Sean D Stocker
PURPOSE OF REVIEW: The central nervous system plays a pivotal role in the regulation of extracellular fluid volume and consequently arterial blood pressure. Key hypothalamic regions sense and integrate neurohumoral signals to subsequently alter intake (thirst and salt appetite) and output (renal excretion via neuroendocrine and autonomic function). Here, we review recent findings that provide new insight into such mechanisms that may represent new therapeutic targets. RECENT FINDINGS: Implementation of cutting edge neuroscience approaches such as opto- and chemogenetics highlight pivotal roles of circumventricular organs to impact body fluid homeostasis...
June 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28527876/short-term-exposure-of-erythropoietin-impairs-endothelial-function-through-inhibition-of-nitric-oxide-production-and-enos-mrna-expression-in-the-rat-pulmonary-artery
#19
Faheem Sultan, Thakur Uttam Singh, Tarun Kumar, Soya Rungsung, Dipankar Jyoti Rabha, Anamika Vishwakarma, Susanth V Sukumaran, Arunvikram Kandasamy, Subhashree Parida
BACKGROUND: Administration of recombinant erythropoietin (rEPO) is often associated with systemic and pulmonary arterial hypertension in animals and human. The present study was conducted to determine whether one-week rEPO-treatment can produce any effect on pulmonary vasomotor function. METHODS: Male Wistar rats were injected with rEPO (400IU/kg sc) or saline every other day for one week. Tension, biochemical and Real-Time PCR experiments were conducted on left and right branches of pulmonary artery and main pulmonary artery isolated from the rats...
February 4, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28527058/headache-and-arterial-hypertension
#20
Cinzia Finocchi, Davide Sassos
Elevated blood pressure (BP) and headache have long been linked in the medical literature. Headache associated with arterial hypertension is a main concern in emergency department. It is believed that headache may be a symptom attributed to arterial hypertension only if the BP values are very high or rise quickly. Many studies support the hypothesis that migraine patients have an increased risk of developing hypertension, while hypertensive subjects do not seem to have an increased risk of migraine or other types of headache...
May 2017: Neurological Sciences
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