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https://www.readbyqxmd.com/read/29792339/pulmonary-hypertension-in-congenital-heart-disease
#1
Emma Pascall, Robert Mr Tulloh
Pulmonary hypertension is defined as a mean pulmonary arterial pressure ≥25 mmHg. We focus on its relevance in congenital heart disease, reviewing pathophysiology, diagnosis and management. Pulmonary hypertension is a relatively common complication of congenital heart disease, with adult prevalence between 5 and 10%. A multifactorial cause is recognized, relating to the size and nature of cardiac defect as well as environmental and genetic factors. More complex disease is increasingly recognized rather than pure Eisenmenger complex...
May 24, 2018: Future Cardiology
https://www.readbyqxmd.com/read/29792170/liddle-s-like-syndrome-associated-with-nephrotic-syndrome-secondary-to-membranous-nephropathy-the-first-case-report
#2
Eriko Yamaguchi, Kazuhiro Yoshikawa, Izaya Nakaya, Karen Kato, Yoshikazu Miyasato, Terumasa Nakagawa, Yutaka Kakizoe, Masashi Mukoyama, Jun Soma
BACKGROUND: Liddle's syndrome is a rare monogenic form of hypertension caused by truncating or missense mutations in the C termini of the epithelial sodium channel (ENaC) β or γ subunits. Patients with this syndrome present with early onset of hypertension, hypokalemia, metabolic alkalosis, hyporeninemia and hypoaldosteronism, and a potassium-sparing diuretics (triamterene or amiloride) can drastically improves the disease condition. Although elderly patients having these characteristics were considered to have Liddle's syndrome or Liddle's-like syndrome, no previous report has indicated that Liddle's-like syndrome could be caused by nephrotic syndrome of primary glomerular disease, which is characterized by urinary excretion of > 3 g of protein/day plus edema and hypoalbuminemia, or has explained how the activity function of ENaC could be affected in the setting of high proteinuria...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29791650/metabolic-syndrome-components-are-associated-with-oxidative-stress-in-overweight-and-obese-patients
#3
Nayara Rampazzo Morelli, Bruna Miglioranza Scavuzzi, Lucia Helena da Silva Miglioranza, Marcell Alysson Batisti Lozovoy, Andréa Name Colado Simão, Isaias Dichi
OBJECTIVE: The aim of this study is to evaluate the influence of the body mass index (BMI) and the metabolic syndrome (MetS) parameters on oxidative and nitrosative stress in overweight and obese subjects. SUBJECTS AND METHODS: Individuals were divided into three groups: the control group (G1, n = 131) with a BMI between 20 and 24.9 kg/m2, the overweight group (G2, n = 120) with a BMI between 25 and 29.9 kg/m2 and the obese group (G3, n = 79) with a BMI ≥ 30 kg/m2...
May 17, 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29789952/carotid-body-ablation-a-new-target-to-address-central-autonomic-dysfunction
#4
REVIEW
Rodrigo Iturriaga
PURPOSE OF REVIEW: An abnormal heightened carotid body (CB) chemoreflex, which produces autonomic dysfunction and sympathetic overactivation, is the common hallmark of obstructive sleep apnea (OSA), resistant hypertension, systolic heart failure (HF), and cardiometabolic diseases. Accordingly, it has been proposed that the elimination of the CB chemosensory input to the brainstem may reduce the autonomic and cardiorespiratory alterations in sympathetic-associated diseases in humans. RECENT FINDINGS: A growing body of evidence obtained in preclinical animal models support that an enhanced CB discharge produces sympathetic hyperactivity, baroreflex sensitivity and heart rate variability impairment, breathing instability, hypertension, and insulin resistance...
May 22, 2018: Current Hypertension Reports
https://www.readbyqxmd.com/read/29789691/performance-of-nosas-score-versus-berlin-questionnaire-for-screening-obstructive-sleep-apnoea-in-patients-with-resistant-hypertension
#5
Sara Q C Giampá, Rodrigo P Pedrosa, Carolina C Gonzaga, Adriana Bertolami, Celso Amodeo, Sofia F Furlan, Luiz A Bortolotto, Geraldo Lorenzi-Filho, Luciano F Drager
Obstructive sleep apnoea (OSA) is the main secondary form associated with resistant hypertension (RH), but it is largely underdiagnosed and consequently undertreated in clinical practice. The Berlin questionnaire (BQ) is a useful tool among general population, but seems to not perform well among patients with RH. Recently, NoSAS score was validated in a large population, however, has not been tested in the cardiovascular scenario. Thus, we aimed to compare BQ versus the NoSAS score as screening tools for OSA in RH...
May 23, 2018: Journal of Human Hypertension
https://www.readbyqxmd.com/read/29789083/low-baseline-sympathetic-tone-correlates-to-a-greater-blood-pressure-change-in-the-cold-pressor-test
#6
Marylen Youssef, Azadeh Ghassemi, Catalina Marysol Carvajal Gonczi, Thiffya Arabi Kugathasan, Robert D Kilgour, Peter J Darlington
BACKGROUND: The cold pressor test (CPT) involves acute hand or foot exposure to cold water. CPT hyper-responders have unique traits, including risk of hypertension and a greater vasoconstrictor reserve and g force tolerance compared to hypo-responders. The purpose of this study was to uncover differences in cardiovascular and sympathetic biomarkers between responder types. METHODS: Healthy volunteers (N = 30) submerged one hand into cold water (3.3 ± 0.8°C) for 5 min...
June 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29788034/sleep-disorders-including-sleep-apnea-and-hypertension
#7
E M Van Ryswyk, S Mukherjee, C L Chai-Coetzer, A Vakulin, R D McEvoy
There is mounting evidence for an association between sleep disorders and hypertension. In obstructive sleep apnea (OSA) there are plausible biological reasons for the development of hypertension, and treatment of OSA results in modest (2-3 mmHg), adherence-dependent decreases in blood pressure (BP), with larger effects evident in those with resistant hypertension. However, prospective, population-based cohort studies have not yet convincingly demonstrated a link between OSA and incident hypertension, and adequately powered controlled trials of CPAP for the prevention or treatment or hypertension are lacking...
May 17, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29785232/effects-of-fasudil-on-patients-with-pulmonary-hypertension-associated-with-left-ventricular-heart-failure-with-preserved-ejection-fraction-a-prospective-intervention-study
#8
Xiang Zhang, Xueming Zhang, Saihua Wang, Jun Luo, Zhihong Zhao, Changzhu Zheng, Jieyan Shen
Background: Pulmonary hypertension due to left ventricular heart failure with preserved ejection fraction (PH-HFpEF) is an increasingly medical problem. The aim of the study was to evaluate the clinical efficacy of fasudil on PH-HFpEF elderly patients and to figure out the subtype of PH-HFpEF which may be the therapeutic object of fasudil. Method: 58 PH-HFpEF elderly patients were enrolled. Patients were diagnosed with passive pulmonary hypertension (PPH) or reactive pulmonary hypertension (RPH) by right heart catheterization and all receiving Rho kinase inhibitor fasudil for 2 weeks...
2018: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29785076/role-of-osteoprotegerin-receptor-activator-of-nuclear-factor-kappa-b-receptor-activator-of-nuclear-factor-kappa-b-ligand-axis-in-nonalcoholic-fatty-liver-disease
#9
REVIEW
Lucia Pacifico, Gian Marco Andreoli, Miriam D'Avanzo, Delia De Mitri, Pasquale Pierimarchi
Concomitantly with the increase in the prevalences of overweight/obesity, nonalcoholic fatty liver disease (NAFLD) has worldwide become the main cause of chronic liver disease in both adults and children. Patients with fatty liver display features of metabolic syndrome (MetS), like insulin resistance (IR), glucose intolerance, hypertension and dyslipidemia. Recently, epidemiological studies have linked obesity, MetS, and NAFLD to decreased bone mineral density and osteoporosis, highlighting an intricate interplay among bone, adipose tissue, and liver...
May 21, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29782256/-radiofrequency-pulmonary-artery-ablation-for-treatment-of-residual-pulmonary-hypertension-after-pulmonary-endarterectomy
#10
A M CHernyavskiy, A G Edemskiy, N V Novikova, A B Romanov, S N Artemenko, B A Rudenko, A R Tarkova
OBJECTIVE: to assess the safety and efficiency of radiofrequency pulmonary artery ablation for treatment of residual pulmonary hypertension after pulmonary endarterectomy. MATERIAL AND METHODS: Radiofrequency pulmonary artery denervation (PADN) was performed in 16 patients (10 men, mean age 39 years [26; 51]). Indication for PADN was mean pulmonary artery pressure (PAP) >25 mm Hg with absence of proximal pulmonary artery lesion according to computer tomography...
April 2018: Kardiologiia
https://www.readbyqxmd.com/read/29782186/excessive-erythrocytosis-and-cardiovascular-risk-in-andean-highlanders
#11
Noemí Corante, Cecilia Anza-Ramírez, Rómulo Figueroa-Mujíca, José Luis Macarlupú, Gustavo Vizcardo-Galindo, Grzegorz Bilo, Gianfranco Parati, Jorge L Gamboa, Fabiola León-Velarde, Francisco C Villafuerte
Cardiovascular diseases are the main cause of death worldwide. Life under high-altitude (HA) hypoxic conditions is believed to provide highlanders with a natural protection against cardiovascular and metabolic diseases compared with sea-level inhabitants. However, some HA dwellers become intolerant to chronic hypoxia and develop a progressive incapacitating syndrome known as chronic mountain sickness (CMS), characterized by excessive erythrocytosis (EE; Hb ≥21 g/dL in men, Hb ≥19 g/dL in women). Evidence from HA studies suggests that, in addition to CMS typical signs and symptoms, these highlanders may also suffer from metabolic and cardiovascular disorders...
May 21, 2018: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29780579/managing-portal-hypertension-in-patients-with-liver-cirrhosis
#12
REVIEW
Tilman Sauerbruch, Robert Schierwagen, Jonel Trebicka
Portal hypertension is one cause and a part of a dynamic process triggered by chronic liver disease, mostly induced by alcohol or incorrect nutrition and less often by viral infections and autoimmune or genetic disease. Adequate staging - continuously modified by current knowledge - should guide the prevention and treatment of portal hypertension with defined endpoints. The main goals are interruption of etiology and prevention of complications followed, if necessary, by treatment of these. For the past few decades, shunts, mostly as intrahepatic stent bypass between portal and hepatic vein branches, have played an important role in the prevention of recurrent bleeding and ascites formation, although their impact on survival remains ambiguous...
2018: F1000Research
https://www.readbyqxmd.com/read/29780007/hidradenitis-suppurativa-metabolic-syndrome-and-demodex-spp-infestation
#13
Emine Ünal, Ulviye Güvendi Akçınar, Ayşe Arduç
Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease. This type of dermatosis with underlying chronic inflammation significantly affects the quality of life and may be accompanied by many comorbidities. In this case, Demodex spp. was associated with treatment-resistant and persistent course of skin diseases. A 46-year-old female patient applied to our clinic with complaints of lesions on the body and hip. Her dermatological examination revealed abscess formation and post-inflammatory pigmentation...
May 21, 2018: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29779164/update-on-endothelin-receptor-antagonists-in-hypertension
#14
REVIEW
Michel Burnier
To review the most recent data on the development of endothelin receptor antagonists (ERAs) for the treatment of hypertension and the management of diabetic nephropathy RECENT FINDINGS: Recent reviews and meta-analyses of experimental and clinical data obtained with ERAs confirmed that endothelin receptor blockade is associated with significant decreases in blood pressure in essential hypertension but also in resistant hypertension. In addition, in patients with diabetic nephropathy, ERAs induce significant 30-40% decreases in albuminuria when administered on top of blockers of the renin-angiotensin system...
May 19, 2018: Current Hypertension Reports
https://www.readbyqxmd.com/read/29779058/genetics-of-resistant-hypertension-the-missing-heritability-and-opportunities
#15
REVIEW
Samantha K Teixeira, Alexandre C Pereira, Jose E Krieger
PURPOSE OF THE REVIEW: Blood pressure regulation in humans has long been known to be a genetically determined trait. The identification of causal genetic modulators for this trait has been unfulfilling at the least. Despite the recent advances of genome-wide genetic studies, loci associated with hypertension or blood pressure still explain a very low percentage of the overall variation of blood pressure in the general population. This has precluded the translation of discoveries in the genetics of human hypertension to clinical use...
May 19, 2018: Current Hypertension Reports
https://www.readbyqxmd.com/read/29775644/redox-signal-mediated-trpm2-promotes-ang-ii-induced-adipocyte-insulin-resistance-via-ca-2-dependent-camkii-jnk-cascade
#16
Min Gao, Yu Du, Jing-Wen Xie, Jing Xue, Yi-Ting Wang, Li Qin, Ming-Ming Ma, Yong-Bo Tang, Xiao-Yan Li
BACKGROUND AND OBJECTIVE: Redox-sensitive transient receptor potential melastatin 2 (TRPM2) is a Ca2+ -permeable, nonselective cation channel which plays a crucial role in various physiological processes. However, little is known whether TRPM2 is involved in adipocyte dysfunction during hypertension. In the present study, we determined the role of TRPM2 in angiotensin II (Ang II)-induced insulin resistance in adipocytes and the underlying mechanisms. METHODS: Ang II-induced adipocyte insulin resistant model was conducted...
May 15, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29773412/athlete-s-heart-is-the-morganroth-hypothesis-obsolete
#17
Mark J Haykowsky, T Jake Samuel, Michael D Nelson, Andre La Gerche
In 1975, Morganroth and colleagues reported that the increased left ventricular (LV) mass in highly trained endurance athletes versus nonathletes was primarily due to increased end-diastolic volume while the increased LV mass in resistance trained athletes was solely due to an increased LV wall thickness. Based on the divergent remodelling patterns observed, Morganroth and colleagues hypothesised that the increased "volume" load during endurance exercise may be similar to that which occurs in patients with mitral or aortic regurgitation while the "pressure" load associated with performing a Valsalva manoeuvre (VM) during resistance exercise may mimic the stress imposed on the heart by systemic hypertension or aortic stenosis...
May 1, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29773001/combined-administration-of-monosodium-glutamate-and-high-sucrose-diet-accelerates-the-induction-of-type-2-diabetes-vascular-dysfunction-and-memory-impairment-in-rats
#18
Kaja Saikrishna, Ringu Kumari, Kantamaneni Chaitanya, Subhankar Biswas, Pawan G Nayak, Jayesh Mudgal, Anoop Kishore, Krishnadas Nandakumar
In this study, we aimed to develop an experimental animal model for type 2 diabetes mellitus (T2DM) using a combination of monosodium glutamate (MSG) and high sucrose diet (HSD). Young male Wistar rats (20-30 g) were injected with MSG (2 or 4 mg/g, i.p. for 4 days). These rats were also fed an HSD, while the control group was fed a starch diet (SFD) for 150 days. Parameters assessed periodically were body weight, feed intake, blood glucose level, and oral glucose tolerance test (OGTT), lipid profile, liver and kidney function tests, skeletal muscle glucose uptake, cognitive function tests, and microvascular changes using isolated rat aorta...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772927/design-and-simulation-of-novel-laparoscopic-renal-denervation-system-a-feasibility-study
#19
Eunbi Ye, Jinhwan Baik, Seunghyun Lee, Seon Young Ryu, Sunchoel Yang, Eue-Keun Choi, Won Hoon Song, Hyeong Dong Yuk, Chang Wook Jeong, Sung-Min Park
PURPOSE: In this study, we propose a novel laparoscopy-based renal denervation (RDN) system for treating patients with resistant hypertension. In this feasibility study, we investigated whether our proposed surgical instrument can ablate renal nerves from outside of the renal artery safely and effectively and can overcome the depth-related limitations of the previous catheter-based system with less damage to the arterial walls. METHOD: We designed a looped bipolar electrosurgical instrument to be used with laparoscopy-based RDN system...
May 18, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29772649/pulmonary-arterial-hypertension-pathophysiology-and-treatment
#20
REVIEW
Norris S H Lan, Benjamin D Massam, Sandeep S Kulkarni, Chim C Lang
Pulmonary arterial hypertension (PAH), the first category of pulmonary hypertension, is a chronic and progressive disorder characterised by angioproliferative vasculopathy in the pulmonary arterioles, leading to endothelial and smooth muscle proliferation and dysfunction, inflammation and thrombosis. These changes increase pulmonary vascular resistance and subsequent pulmonary arterial pressure, causing right ventricular failure which leads to eventual death if untreated. The management of PAH has advanced rapidly in recent years due to improved understanding of the condition's pathophysiology, specifically the nitric oxide, prostacyclin-thromboxane and endothelin-1 pathways...
May 16, 2018: Diseases (Basel)
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