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Renin Angiotensin

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https://www.readbyqxmd.com/read/28805480/current-evidence-on-the-use-of-anti-raas-agents-in-congenital-or-acquired-solitary-kidney
#1
Mariadelina Simeoni, Annarita Armeni, Chiara Summaria, Annamaria Cerantonio, Giorgio Fuiano
RATIONAL: The inhibition of renin-angiotensin-aldosterone system (RAAS) is a major strategy for slowing the progression of chronic kidney disease (CKD). The utility of anti-RAAS agents in patients with congenital or acquired solitary kidney is still controversial. OBJECTIVE: A systematic literature review was conducted. MAIN FINDINGS: The conclusions of the few available studies on the topic are homogeneously in agreement with a long-term reno-protective activity of anti-RAAS drugs in patients with solitary kidney, especially if patients are hypertensive or proteinuric...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28805378/in-vitro-modulation-of-renin-angiotensin-system-enzymes-by-amaranth-amaranthus-hypochondriacus-protein-derived-peptides-alternative-mechanisms-different-from-ace-inhibition
#2
Alejandra V Quiroga, Paula Aphalo, Agustina Estefanía Nardo, María Cristina Añón
Among the factors affecting the development of cardiovascular diseases, hypertension is one of the most important. Research done on amaranth proteins has demonstrated their hypotensive capacity in vivo and in vitro; nevertheless the mechanism underlying this effect remains unclear. The aim of this study was to analyze in vitro the inhibition of peptides derived from an amaranth hydrolysate (AHH) on other RAS enzymes other than ACE. The chymase and renin activities were studied. AHH was not able to inhibit chymase activity although a dose-response effect was found on renin activity (IC50 0...
August 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28802945/effect-of-dual-compared-to-no-or-single-renin-angiotensin-system-blockade-on-risk-of-renal-replacement-therapy-or-death-in-predialysis-patients-prepare-2-study
#3
Pauline W M Voskamp, Friedo W Dekker, Merel van Diepen, Ellen K Hoogeveen
Current guidelines on hypertension treatment in chronic kidney disease (CKD) patients discourage combined angiotensin-converting enzyme inhibitor (ACEi) and angiotensin II receptor blocker (ARB) use due to the risk of an increased kidney function decline. However, dual compared to single renin-angiotensin system (RAS) blockade may have more efficacy with regard to hypertension and proteinuria. Among incident predialysis patients (CKD 4-5), we compared dual with no or single RAS blockade regarding kidney function decline and risk of renal replacement therapy (RRT) or death...
July 22, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28797632/association-of-angiotensin-ii-levels-with-albuminuria-in-subjects-with-normal-glucose-metabolism-prediabetes-and-type-2-diabetes-mellitus
#4
Se Hee Min, Sung Hye Kong, Jie-Eun Lee, Dong-Hwa Lee, Tae Jung Oh, Kyoung Min Kim, Kyong Soo Park, Hak Chul Jang, Soo Lim
OBJECTIVES: The relationship between the renin-angiotensin system (RAS) and diabetes has been studied for many years. However, studies that assessed RAS components comprehensively were limited. We hypothesized that serum RAS components, especially the effector peptide angiotensin-II, might be closely associated with glucose metabolism status and diabetic complications. METHODS: We investigated the association of individual RAS component with albuminuria in 407 subjects with normal glucose metabolism (NGM), prediabetes, or type 2 diabetes mellitus (T2DM)...
July 6, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28794824/the-clinical-and-economic-burden-of-hyperkalemia-on-medicare-and-commercial-payers
#5
Kathryn Fitch, J Michael Woolley, Tyler Engel, Helen Blumen
BACKGROUND: Hyperkalemia (serum potassium >5.0 mEq/L) may be caused by reduced kidney function and drugs affecting the renin-angiotensin-aldosterone system and is often present in patients with chronic kidney disease (CKD). OBJECTIVE: To quantify the burden of hyperkalemia in US Medicare fee-for-service and commercially insured populations using real-world claims data, focusing on prevalence, comorbidities, mortality, medical utilization, and cost. METHODS: A descriptive, retrospective claims data analysis was performed on patients with hyperkalemia using the 2014 Medicare 5% sample and the 2014 Truven Health Analytics MarketScan Commercial Claims and Encounter databases...
June 2017: American Health & Drug Benefits
https://www.readbyqxmd.com/read/28794651/hypertension-in-pediatric-patients-with-chronic-kidney-disease-management-challenges
#6
REVIEW
Claire M Gallibois, Natasha A Jawa, Damien G Noone
In contrast to adults where hypertension is a leading cause of chronic kidney disease, in pediatrics, hypertension is predominantly a sequela, however, an important one that, like in adults, is likely associated with a more rapid decline in kidney function or progression of chronic kidney disease to end stage. There is a significant issue with unrecognized, or masked, hypertension in childhood chronic kidney disease. Recent evidence and, therefore, guidelines now suggest targeting a blood pressure of <50th percentile for age, sex, and height in children with proteinuria and chronic kidney disease...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28793067/farm%C3%A3-cia-popular-program-pharmaceutical-market-analysis-of-antihypertensive-acting-on-the-renin-angiotensin-system-medicines
#7
Rondineli Mendes da Silva, Gabriela Costa Chaves, Luisa Arueira Chaves, Mônica Rodrigues Campos, Vera Lucia Luiza, Andréa Dâmaso Bertoldi, Dennis Ross-Degnan, Isabel Cristina Martins Emmerick
This paper aims to analyse changes in the retail pharmaceutical market following policy changes in the Farmácia Popular Program (FP), a medicines subsidy program in Brazil. The retrospective longitudinal analyses focus on therapeutic class of agents acting on the renin-angiotensin system. Data obtained from QuintilesIMS (formerly IMS Health) included private retail pharmacy sales volume (pharmaceutical units) and sales values from 2002 to 2013. Analyses evaluated changes in market share following key FP policy changes...
August 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28791668/obesity-related-glomerulopathy-pathogenesis-pathologic-clinical-characteristics-and-treatment
#8
REVIEW
Tianhua Xu, Zitong Sheng, Li Yao
In light of the rapid increase in the number of obesity incidences worldwide, obesity has become an independent risk factor for chronic kidney disease. Obesity-related glomerulopathy (ORG) is characterized by glomerulomegaly in the presence or absence of focal and segmental glomerulosclerosis lesions. IgM and complement 3 (C3) nonspecifically deposit in lesions without immune-complex-type deposits during ORG immunofluorescence. ORG-associated glomerulomegaly and focal and segmental glomerulosclerosis can superimpose on other renal pathologies...
August 8, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28791529/effects-of-raas-inhibitors-in-patients-with-kidney-disease
#9
REVIEW
Fan Zhang, Hong Liu, Di Liu, Yexin Liu, Huiqiong Li, Xia Tan, Fuyou Liu, Youming Peng, Hongqing Zhang
Proteinuria and decline of renal function are associated with progression of kidney disease. The Renin Angiotensin Aldosterone System (RAAS) plays an important role in blood pressure regulation, fluid volume, and sodium balance. Overactivity of RAAS contributes to the pathogenesis of a variety of clinical conditions including progress of chronic kidney disease (CKD). This review summarizes the use of RAAS inhibitors as dual therapy or monotherapy in different stages of kidney disease. Experimental and clinical studies have demonstrated RAAS inhibitors prevent proteinuria, kidney fibrosis and slow decline of renal function and thus play a protective role in both early and end stages of kidney disease...
August 8, 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28791422/melatonin-mitochondria-and-hypertension
#10
REVIEW
Ovidiu C Baltatu, Fernanda G Amaral, Luciana A Campos, Jose Cipolla-Neto
Melatonin, due to its multiple means and mechanisms of action, plays a fundamental role in the regulation of the organismal physiology by fine tunning several functions. The cardiovascular system is an important site of action as melatonin regulates blood pressure both by central and peripheral interventions, in addition to its relation with the renin-angiotensin system. Besides, the systemic management of several processes, melatonin acts on mitochondria regulation to maintain a healthy cardiovascular system...
August 8, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28791402/role-of-the-ace2%C3%A2-ang%C3%A2-1%C3%A2-7-%C3%A2-mas-axis-in-blood-pressure-regulation-and-its-potential-as-an-antihypertensive-in-functional-foods-review
#11
Shiqi Lin, Huanglei Pan, Hongli Wu, Difeng Ren, Jun Lu
The renin‑angiotensin system (RAS) serves a critical role in blood pressure regulation and prevention of cardiovascular diseases. Efforts to develop functional foods that enhance the RAS have focused on inhibition of angiotensin‑converting enzyme (ACE) activity in the ACE‑angiotensin II (Ang II)‑Ang II type 1 receptor axis. ACE2 and the Mas receptor are important components of this axis. ACE2 catalyzes Ang II into Ang‑(1‑7), which then binds to the G‑protein‑coupled receptor Mas. In addition, it induces nitric oxide release from endothelial cells and exerts antiproliferative, vasodilatory and antihypertensive effects...
August 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28791183/alterations-in-gene-expression-of-components-of-the-renin-angiotensin-system-and-its-related-enzymes-in-lung-cancer
#12
Benjamin Goldstein, Malav Trivedi, Robert C Speth
OBJECTIVES: The study assessed the existence and significance of associations between the expression of fifteen renin-angiotensin system component genes and lung adenocarcinoma. MATERIALS AND METHODS: NCBI's built-in statistical tool, GEO2R, was used to calculate Student's t-tests for the associations found in a DNA expression study of adenocarcinoma and matched healthy lung tissue samples. The raw data was processed with GeneSpring™ and then used to generate figures with and without Sidak's multiple comparison correction...
2017: Lung Cancer International
https://www.readbyqxmd.com/read/28780894/gene-therapy-for-hypertension
#13
Ludovit Paulis, Heinrich Franke, Fedor Simko
The control of hypertension and the resulting cardiovascular events is still insufficient. Thus, the search for novel means for blood pressure (BP) reduction remains worth further clinical and research attention. The advances in vector and construct design sketch the use of gene therapy in hypertension. Areas covered: The authors have searched for studies using gene therapy in hypertension reporting BP outcomes. They have identified 63 experimental studies demonstrating feasible targeting of the classical and new renin-angiotensin-aldosterone system, β1-adrenergic receptor, NO-cGMP axis, endothelin, natriuretic peptides, kallikrein system, cytochrome P-450 hydroxylase, oncogenes, growth factors, interleukins, angiopoietin-1, adrenomedullin or Klotho in small rodents...
August 7, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28780627/primary-pediatric-hypertension-current-understanding-and-emerging-concepts
#14
REVIEW
Andrew C Tiu, Michael D Bishop, Laureano D Asico, Pedro A Jose, Van Anthony M Villar
The rising prevalence of primary pediatric hypertension and its tracking into adult hypertension point to the importance of determining its pathogenesis to gain insights into its current and emerging management. Considering that the intricate control of BP is governed by a myriad of anatomical, molecular biological, biochemical, and physiological systems, multiple genes are likely to influence an individual's BP and susceptibility to develop hypertension. The long-term regulation of BP rests on renal and non-renal mechanisms...
September 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28780494/early-renin-angiotensin-system-inhibition-induced-renal-deterioration-may-be-a-predictor-for-long-term-cardiorenal-outcomes
#15
Redi Llubani, Michael Böhm
No abstract text is available yet for this article.
August 5, 2017: Evidence-based Medicine
https://www.readbyqxmd.com/read/28780421/antihypertensive-drugs
#16
REVIEW
Stéphane Laurent
Successful treatment of hypertension is possible with limited side effects given the availability of multiple antihypertensive drug classes. This review describes the various pharmacological classes of antihypertensive drugs, under two major aspects: their mechanisms of action and side effects. The mechanism of action is analysed through a pharmacological approach, i.e. the molecular receptor targets, the various sites along the arterial system, and the extra-arterial sites of action, in order to better understand in which type of hypertension a given pharmacological class of antihypertensive drug is most indicated...
August 2, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28777022/association-of-cystathionine-beta-synthase-polymorphisms-and-aneurysmal-subarachnoid-hemorrhage
#17
Philipp Hendrix, Paul M Foreman, Mark R Harrigan, Winfield S Fisher, Nilesh A Vyas, Robert H Lipsky, Mingkuan Lin, Beverly C Walters, R Shane Tubbs, Mohammadali M Shoja, Jean-Francois Pittet, Mali Mathru, Christoph J Griessenauer
OBJECTIVE Cystathionine β-synthase (CBS) is involved in homocysteine and hydrogen sulfide (H2S) metabolism. Both products have been implicated in the pathophysiology of cerebrovascular diseases. The impact of CBS polymorphisms on aneurysmal subarachnoid hemorrhage (aSAH) and its clinical sequelae is poorly understood. METHODS Blood samples from all patients enrolled in the CARAS (Cerebral Aneurysm Renin Angiotensin System) study were used for genetic evaluation. The CARAS study prospectively enrolled aSAH patients at 2 academic institutions in the United States from 2012 to 2015...
August 4, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28776083/diabetic-cardiomyopathy-a-hyperglycaemia-and-insulin-resistance-induced-heart-disease
#18
REVIEW
Guanghong Jia, Adam Whaley-Connell, James R Sowers
Diabetic cardiomyopathy is characterised in its early stages by diastolic relaxation abnormalities and later by clinical heart failure in the absence of dyslipidaemia, hypertension and coronary artery disease. Insulin resistance, hyperinsulinaemia and hyperglycaemia are each independent risk factors for the development of diabetic cardiomyopathy. The pathophysiological factors in diabetes that drive the development of cardiomyopathy include systemic metabolic disorders, inappropriate activation of the renin-angiotensin-aldosterone system, subcellular component abnormalities, oxidative stress, inflammation and dysfunctional immune modulation...
August 3, 2017: Diabetologia
https://www.readbyqxmd.com/read/28772209/renin-angiotensin-aldosterone-raas-the-ubiquitous-system-for-homeostasis-and-pathologies
#19
Seema Patel, Abdur Rauf, Haroon Khan, Tareq Abu-Izneid
Renin-angiotensin-aldosterone system (RAAS) is a vital system of human body, as it maintains plasma sodium concentration, arterial blood pressure and extracellular volume. Kidney-secreted renin enzyme acts on its substrate to form angiotensin II, a versatile effector peptide hormone. Every organ is affected by RAAS activation and the resultant hypertension, cell proliferation, inflammation, and fibrosis. The imbalance of renin and angiotensin II can result in an overwhelming number of chronic and acute diseases...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28772089/fructose-rich-diet-differently-affects-angiotensin-ii-receptors-content-in-the-nucleus-and-a-plasma-membrane-fraction-of-visceral-adipose-tissue
#20
Maja Bundalo, Ana Djordjevic, Biljana Bursac, Maja Zivkovic, Goran Koricanac, Aleksandra Stankovic
The adipose tissue renin-angiotensin system (RAS) is proposed to be a pathophysiological link between adipose tissue dysregulation and metabolic disorders induced by fructose rich diet (FRD). RAS can act intracellularly. We hypothesized that adipocytes nuclear membranes possess angiotensin receptors type 1 and type 2 (AT1R and AT2R) that couple to nuclear signaling pathways and regulate oxidative gene expression under the FRD. We analyzed the effect of nine-week consumption of 10% fructose solution on biochemical parameters, adipocyte morphology and expression of AT1R, AT2R, AT1R-associated protein (ATRAP), NOX4, MMP-9, and MnSOD in adipose tissue of Wistar rats...
August 3, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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