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https://www.readbyqxmd.com/read/28428753/a-clinical-perspective-of-anti-fibrotic-therapies-for-cardiovascular-disease
#1
REVIEW
Lu Fang, Andrew J Murphy, Anthony M Dart
Cardiac fibrosis are central to various cardiovascular diseases. Research on the mechanisms and therapeutic targets for cardiac fibrosis has advanced greatly in recent years. However, while many anti-fibrotic treatments have been studied in animal models and seem promising, translation of experimental findings into human patients has been rather limited. Thus, several potential new treatments which have shown to reduce cardiac fibrosis in animal models have either not been tested in humans or proved to be disappointing in clinical trials...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28425437/are-genetic-polymorphisms-in-the-renin-angiotensin-aldosterone-system-associated-with-essential-hypertension-evidence-from-genome-wide-association-studies
#2
REVIEW
L-D Ji, J-Y Li, B-B Yao, X-B Cai, Q-J Shen, J Xu
In candidate gene era, dozens of single-nucleotide polymorphisms (SNPs) within renin-angiotensin-aldosterone system (RAAS) have been reported to be significantly associated with hypertension. However, the unbiased genome-wide association studies (GWAS) rarely identified the SNPs within RAAS were associated with hypertension or blood pressure (BP) traits. In order to figure out whether genetic polymorphisms of RAAS are really associated with hypertension, we systemically searched the GWAS Catalogue and identified all the known RAAS genes and relevant diseases/traits...
April 20, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28420337/right-aortic-arch-analysis-anatomical-variant-or-serious-vascular-defect
#3
Agata Arazińska, Michał Polguj, Konrad Szymczyk, Magdalena Kaczmarska, Łukasz Trębiński, Ludomir Stefańczyk
BACKGROUND: The right-sided aortic arch (RAA) is a rare congenital defect of the aorta. The aim of the study was to assess the occurrence of RAA in diagnoses performed by the University Radiology Department and analyze the frequency of concomitant vascular abnormalities. METHODS: The database of the Radiology Department was retrospectively analyzed between January 2008 and May 2016 with the keyword "right aortic arch". Twenty patients with this diagnosis were identified from a total of 11,690 CT examinations of the chest area, 19,623 CT examinations of brain-supplying vessels, and 1863 MRI examinations of the heart and aortic arch or brain-supplying arteries...
April 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28417649/internal-dysregulation-of-the-renin-system-in-patients-with-stable-liver-cirrhosis
#4
Annette Dam Fialla, Helle C Thiesson, Peter Bie, Ove B Schaffalitzky de Muckadell, Aleksander Krag
Sodium retention in cirrhosis is associated with changes in the renin-angiotensin-aldosterone system (RAAS), the sympathetic nervous system (SNS), and the glomerular filtration rate (GFR). We hypothesized that in cirrhosis the acute reactions of RAAS and SNS to volume expansion are qualitatively intact, but occurring from elevated baseline levels. Acute cardiovascular, neurohumoral and renal responses to central blood volume changes were studied in cirrhotic patients and healthy controls. In patients, baseline plasma renin concentration (PRC) was elevated 5-fold compared to controls (p < ...
April 18, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28417590/calcitonin-gene-related-peptide-cgrp-a-novel-target-for-alzheimer-s-disease
#5
REVIEW
Yogendra Singh, Gaurav Gupta, Birendra Shrivastava, Rajiv Dahiya, Juhi Tiwari, Madhu Ashwathanarayana, Rakesh Kumar Sharma, Mohit Agrawal, Anurag Mishra, Kamal Dua
Alzheimer's disease (AD) is leading cause of death among older characterized by neurofibrillary tangles, oxidative stress, progressive neuronal deficits, and increased levels of amyloid-β (Aβ) peptides. Cholinergic treatment could be the best suitable physiological therapy for AD. Calcitonin gene-related peptide (CGRP) is a thirty-seven-amino acid regulatory neuropeptide resulting from different merging of the CGRP gene, which also includes adrenomedullin, amylin, calcitonin, intermedin, and calcitonin receptor-stimulating peptide...
April 17, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28416004/clinical-study-of-children-with-takayasu-arteritis-a-retrospective-study-from-a-single-center-in-china
#6
Ye Feng, Xuemei Tang, Mingyue Liu, Juan Zhou, Xiaodong Zhao, Qiu Li
BACKGROUND: Delayed diagnosis of childhood Takayasu arteritis (TA) is common due to its atypical symptoms. The objective of the present study was to summarize the clinical features of childhood TA to raise awareness and improve management. METHODS: Eleven children diagnosed with TA at our hospital were enrolled. Clinical information, diagnosis, treatment, and outcome were then examined retrospectively. The Pediatric Vasculitis Activity Score (PVAS) and the Indian Takayasu Clinical Activity Score (ITAS2010) were used to assess disease activity...
April 17, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28413967/uncontrolled-hypertension-and-oncology-clinical-%C3%AE-ips
#7
Rigas G Kalaitzidis, Moses S Elisaf
Angiogenesis is fundamental for tumour development and progression. Thus, anti-angiogenic agents have been developed and are mainly vascular endothelial growth factor (VEGF) pathway inhibitors. However, these agents commonly exhibit cardiac and renal toxicity, proteinuria and hypertension (HT). In fact, with the use of anti-angiogenic agents a rapiddose-dependent increaseof blood pressure (BP) is observed. Thepossible mechanisms of VEGF inhibitors-induced HTinclude systemic endothelial dysfunction, renal impairment as well as vascular micro- and macroangiopathy...
April 14, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28413612/advances-in-understanding-the-renin-angiotensin-aldosterone-system-raas-in-blood-pressure-control-and-recent-pivotal-trials-of-raas-blockade-in-heart-failure-and-diabetic-nephropathy
#8
REVIEW
Lama Ghazi, Paul Drawz
The renin-angiotensin-aldosterone system (RAAS) plays a fundamental role in the physiology of blood pressure control and the pathophysiology of hypertension (HTN) with effects on vascular tone, sodium retention, oxidative stress, fibrosis, sympathetic tone, and inflammation. Fortunately, RAAS blocking agents have been available to treat HTN since the 1970s and newer medications are being developed. In this review, we will (1) examine new anti-hypertensive medications affecting the RAAS, (2) evaluate recent studies that help provide a better understanding of which patients may be more likely to benefit from RAAS blockade, and (3) review three recent pivotal randomized trials that involve newer RAAS blocking agents and inform clinical practice...
2017: F1000Research
https://www.readbyqxmd.com/read/28411317/race-obesity-and-the-renin-angiotensin-aldosterone-system-treatment-response-in-children-with-primary-hypertension
#9
Andrew M South, Lester Arguelles, Gal Finer, Craig B Langman
BACKGROUND: Pediatric primary hypertension (HTN) is increasingly recognized, but the effect of patient characteristics such as obesity and race on treatment outcomes is not well described. The renin-angiotensin-aldosterone system (RAAS) may also contribute to HTN. We hypothesized patient parameters of these factors, including baseline RAAS, influence blood pressure (BP) response to pharmacological treatment in HTN. METHODS: This was a retrospective cohort of 102 consecutive patients with HTN...
April 14, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28408434/renal-and-vascular-effects-of-uric-acid-lowering-in-normouricemic-patients-with-uncomplicated-type-1-diabetes
#10
Yuliya Lytvyn, Ronnie Har, Amy Locke, Vesta Lai, Derek Fong, Andrew Advani, Bruce A Perkins, David Z I Cherney
Higher plasma uric acid (PUA) levels are associated with lower GFR and higher blood pressure (BP) in patients with type 1 diabetes (T1D). Our aim was to determine the impact of PUA lowering on renal and vascular function in patients with uncomplicated T1D.T1D patients (n=49) were studied under eu- and hyperglycemic conditions at baseline and after PUA lowering with febuxostat (FBX) for 8 weeks. Healthy controls (HC) were studied under normoglycemic conditions (n=24). PUA, GFR (inulin), effective renal plasma flow (ERPF, paraaminohippurate), BP and hemodynamic responses to an infusion of angiotensin II (assessment of intrarenal RAAS) were measured pre- and post-FBX...
April 13, 2017: Diabetes
https://www.readbyqxmd.com/read/28404736/the-link-between-adipose-tissue-renin-angiotensin-aldosterone-system-signaling-and-obesity-associated-hypertension
#11
REVIEW
Monica T J Schütten, Alfons J H M Houben, Peter W de Leeuw, Coen D A Stehouwer
Obese individuals frequently develop hypertension, which is for an important part attributable to renin-angiotensin-aldosterone system (RAAS) overactivity. This review summarizes preclinical and clinical evidence on the involvement of dysfunctional adipose tissue in RAAS activation and on the renal, central, and vascular mechanisms linking RAAS components to obesity-associated hypertension.
May 2017: Physiology
https://www.readbyqxmd.com/read/28402446/adiponectin-and-its-receptors-in-diabetic-kidney-disease-molecular-mechanisms-and-clinical-potential
#12
Dongqing Zha, Xiaoyan Wu, Ping Gao
Diabetic kidney disease (DKD) is a major complication for diabetic patients. Adiponectin is an insulin sensitizer and anti-inflammatory adipokine and is mainly secreted by adipocytes. Two types of adiponectin receptors have been identified, AdipoR1 and AdipoR2. In both type 1 (T1D) and type 2 diabetes (T2D) patients with DKD elevated adiponectin serum levels have been observed and adiponectin serum level is a prognostic factor of end stage renal disease. Renal insufficiency and tubular injury possibly play a contributory role in increases in serum and urinary adiponectin levels in diabetic nephropathy by either increasing biodegradation or elimination of adiponectin in the kidneys, or enhancing production of adiponectin in adipose tissue...
April 11, 2017: Endocrinology
https://www.readbyqxmd.com/read/28395793/visceral-aneurysms-old-paradigms-new-insights
#13
REVIEW
M J E van Rijn, S Ten Raa, J M Hendriks, H J M Verhagen
True visceral artery aneurysms (VAAs) are a rare entity with an incidence of 0.01-2%. The risk of rupture varies amongst the different types of VAAs and is higher for pseudo aneurysms compared with true aneurysms. Size, growth, symptoms, underlying disease, pregnancy and liver transplantation have all been associated with increased risk of rupture. Mortality rates after rupture are around 25%. The splenic artery is most commonly affected and the etiology is predominantly atherosclerosis. Open repair can be done by simple ligation or reconstruction of the artery, while endovascular options include embolization or using a stent graft...
February 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28392473/elucidating-the-behavioral-phenotype-of-patients-affected-with-mucolipidosis-iv-what-can-we-learn-from-the-parents
#14
Perri Segal, Ben Pode-Shakked, Annick Raas-Rothschild
BACKGROUND: Mucolipidosis type IV (ML-IV) is a rare autosomal recessive lysosomal storage disorder which presents with nonspecific developmental delay. Nowadays with the use of new tools such as next generation sequencing, more ML-IV affected patients are diagnosed. Still, identifying the behavioral phenotype might be of help for early diagnosis and anticipatory guidance, as well as for counseling of the families. OBJECTIVE: Identification of the behavioral characteristics of 12 ML-IV patients, aged from 2...
April 6, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28387822/differences-in-the-structural-characteristics-and-distribution-of-epicardial-adipose-tissue-between-left-and-right-atrial-fibrillation
#15
Hideyuki Hasebe, Kentaro Yoshida, Masataka Iida, Naoki Hatano, Toshiro Muramatsu, Akihiko Nogami, Kazutaka Aonuma
Aims: Right atrial (RA) fibrillation (RAF) was previously characterized by initiation from RA ectopies, presence of a right-to-left dominant frequency gradient during atrial fibrillation (AF), and augmentation of the gradient by adenosine triphosphate infusion. We investigated structural characteristics of the bi-atria and epicardial adipose tissue (EAT) volume in patients with RAF. Methods and results: By using multidetector computed tomography, RA, left atrial (LA), right and LA appendage (RAA and LAA, respectively) volumes, pulmonary vein (PV) sizes, and EAT volumes were compared between the RAF group (n = 8) and LA fibrillation (LAF) group (n = 32)...
April 6, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28383400/protocol-of-randomized-control-trial-for-effectiveness-of-angiotensin-receptor-blockers-on-blood-pressure-control-among-euvolemic-hypertensive-hemodialysis-patients
#16
Raja Ahsan Aftab, Amer Hayat Khan, Syed Azhar Syed Sulaiman, Tahir Mehmood Khan, Azreen Syazril Adnan
INTRODUCTION: Volume overload and the renin-aldosterone-angiotensin system (RAAS) are 2 major factors contributing to hypertension (HTN) among hemodialysis (HD) patients. Although volume-dependent components of HTN can be corrected by appropriate volume removal, a proportion of HD patients experience elevated blood pressure (BP) despite achieving euvolemic and ideal dry weight. METHOD AND ANALYSIS: A single center, prospective, randomized, parallel design, single-blind trial will be conducted in the Malaysian state of Kelantan among postdialysis euvolemic hypertensive patients that are on regular dialysis at least 3 times a week...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28382626/use-of-radiocontrast-agents-in-ckd-and-esrd
#17
Jehan Z Bahrainwala, Amanda K Leonberg-Yoo, Michael R Rudnick
Contrast exposure in a population with chronic kidney disease (CKD) requires additional consideration given the risk of contrast-induced nephropathy (CIN) after exposure to iodinated contrast as well as systemic injury with exposure to gadolinium-based contrast agents (GBCA). Strategies to avoid CIN, and manage patients after exposure, including extracorporeal removal of contrast media, may differ among an advanced CKD population as compared to a general population. There is strong evidence to support the use of isotonic volume expansion and the lowest dose of low-osmolar or iso-osmolar contrast media possible to decrease CIN...
April 5, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28376078/the-expression-of-renin-angiotensin-aldosterone-axis-components-in-infantile-hemangioma-tissue-and-the-impact-of-propranolol-treatment
#18
James R Dornhoffer, Ting Wei, Haihong Zhang, Emily Miller, Mario Cleves, Gresham T Richter
BACKGROUND: Propranolol's mechanism of action for controlling infantile hemangioma (IH) remains unclear. We hypothesize that this non-selective beta antagonist downregulates Renin-Angiotensin-Aldosterone (RAA) axis components, preventing angiogenic substrate induction of IH. METHODS: IH tissue and serum were collected from children with propranolol-treated or untreated IHs during surgery. Patients' normal skin and serum from demographically matched children were used as controls...
April 4, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28372167/a-new-parameter-to-simultaneously-assess-antioxidant-activity-for-multiple-phenolic-compounds-present-in-food-products
#19
Hong Yang, Xuejia Xue, Huan Li, Su Chin Tay-Chan, Seng Poon Ong, Edmund Feng Tian
In this work, we established a new methodology to simultaneously assess the relative reaction rates of multiple antioxidant compounds in one experimental set-up. This new methodology hypothesizes that the competition among antioxidant compounds towards limiting amount of free radical (in this article, DPPH) would reflect their relative reaction rates. In contrast with the conventional detection of DPPH decrease at 515nm on a spectrophotometer, depletion of antioxidant compounds treated by a series of DPPH concentrations was monitored instead using liquid chromatography coupled with quadrupole time-of-flight (LC-QTOF)...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28367224/qgqs-granule-in-shr-serum-metabonomics-study-based-on-tools-of-uplc-q-tof-and-renin-angiotensin-aldosterone-system-form-protein-profilin-1
#20
Ke Li, Caicai Li, Jialong Wang, Hanming Cui, Yu Dong, Ruihua Liu, Yuanhui Hu
QGQS granule is effective for the therapeutic of hypertension in clinic. The aim of this research is to observe the antihypertension effect of QGQS granule on SHR and explain the mechanism of its lowering blood pressure. 30 SHR were selected as model group, captopril group, and QGQS group, 10 WKYr were used as control group, and RBP were measured on tail artery consciously. And all the serum sample analysis was carried out on UPLC-TOF-MS system to determine endogenous metabolites and to find the metabonomics pathways...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
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