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Renin Angiotensin System

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https://www.readbyqxmd.com/read/28743130/sglt-2-inhibition-a-potential-new-treatment-for-diabetic-kidney-disease
#1
Robert D Toto
Diabetic nephropathy is the leading cause of kidney failure. Treatments with drugs that block the renin-angiotensin system have proven beneficial in slowing kidney disease progression among those with diabetes; their benefit is limited and they do not stop disease progression. Despite multiple clinical trials of various interventions including dual blockade of the renin-angiotensin system over the past 15 years, no new therapies have emerged to slow kidney disease progression in diabetes. SGLT-2 inhibitors are a new class of antiglycemic drugs that have been shown to lower blood glucose by inhibition of the sodium-glucose transporter 2 in the proximal tubule of the kidney...
July 26, 2017: Nephron
https://www.readbyqxmd.com/read/28740651/renin-angiotensin-system-inhibitors-a-panacea-for-heart-disease
#2
EDITORIAL
Karim M Al-Azizi, Kimberly A Skelding
No abstract text is available yet for this article.
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28740597/is-hepatic-steatosis-associated-with-left-ventricular-mass-index-increase-in-the-general-population
#3
Katharina Piontek, Carsten O Schmidt, Sebastian E Baumeister, Markus M Lerch, Julia Mayerle, Marcus Dörr, Stephan B Felix, Henry Völzke
AIM: To investigate the association between hepatic steatosis and change in left ventricular mass index (LVMI) over five years, and examine whether systolic and diastolic blood pressures are mediators of the association between hepatic steatosis and LVMI using a general population sample. METHODS: We analyzed data from the Study of Health in Pomerania. The study population comprised 1298 individuals aged 45 to 81 years. Hepatic steatosis was defined as the presence of a hyperechogenic pattern of the liver together with elevated serum alanine transferase levels...
July 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28739650/lysophosphatidic-acid-receptor-antagonism-protects-against-diabetic-nephropathy-in-a-type-2-diabetic-model
#4
Ming-Zhi Zhang, Xin Wang, Haichun Yang, Agnes B Fogo, Brian J Murphy, Robert Kaltenbach, Peter Cheng, Bradley Zinker, Raymond C Harris
Lysophosphatidic acid (LPA) functions through activation of LPA receptors (LPARs). LPA-LPAR signaling has been implicated in development of fibrosis. However, the role of LPA-LPAR signaling in development of diabetic nephropathy (DN) has not been studied. We examined whether BMS002, a novel dual LPAR1 and LPAR3 antagonist, affects development of DN in endothelial nitric oxide synthase-knockout db/db mice. Treatment of these mice with BMS002 from 8 to 20 weeks of age led to a significant reduction in albuminuria, similar to that observed with renin-angiotensin system inhibition (losartan plus enalapril)...
July 24, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28739050/reduced-water-intake-deteriorates-glucose-regulation-in-patients-with-type-2-diabetes
#5
Evan C Johnson, Costas N Bardis, Lisa T Jansen, J D Adams, Tracie W Kirkland, Stavros A Kavouras
Epidemiological research has demonstrated that low daily total water intake is associated with increased diagnosis of hyperglycemia. Possible mechanisms for this increase include hormones related to the hypothalamic pituitary axis as well as the renin-angiotensin-aldosterone system (RAAS). Therefore, the hypothesis of the present study was that acute low water intake would result in differential hormonal profiles and thus impaired blood glucose regulation during an oral glucose tolerance test (OGTT) in people with type 2 diabetes mellitus (T2DM)...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28738355/impact-of-renin-angiotensin-aldosterone-system-inhibition-on-serum-potassium-levels-among-peritoneal-dialysis-patients
#6
Silvia Carreira Ribeiro, Ana Elizabeth Figueiredo, Pasqual Barretti, Roberto Pecoits-Filho, Thyago Proença de Moraes
BACKGROUND: The chronic use of angiotensin-converting enzyme inhibitors or angiotensin II receptor blocker has been associated with hyperkalemia in patients with reduced renal function even after the initiation of hemodialysis. Whether such medications may cause a similar effect in peritoneal dialysis patients is not well established. So, the aim of our study was to analyze the impact of renin-angiotensin-aldosterone inhibitors on the serum levels of potassium in a national cohort of peritoneal dialysis patients...
July 22, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28737438/prenatal-exposure-to-angiotensin-ii-increases-blood-pressure-and-decreases-salt-sensitivity-in-rats
#7
Pavel Svitok, Tomas Senko, Zuzana Panakova, Lucia Olexova, Lucia Krskova, Monika Okuliarova, Michal Zeman
Renin angiotensin aldosterone system (RAAS) plays an essential role in the homeostatic control of arterial blood pressure, perfusion of tissues, and control of extracellular fluid. Its components are highly expressed in the developing kidney, general vasculature, brain, and heart. A modified intrauterine environment alters mechanisms controlling blood pressure (BP) and can lead to hypertension in the adult offspring and developmentally programmed RAAS can be involved in this process. There are very little data about the effects of increased angiotensin II (Ang II) concentrations during pregnancy on in utero development of the fetus...
July 24, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28735756/incidence-and-determinants-of-hyperkalemia-and-hypokalemia-in-a-large-healthcare-system
#8
Erik Nilsson, Alessandro Gasparini, Johan Ärnlöv, Hairong Xu, Karin M Henriksson, Josef Coresh, Morgan E Grams, Juan Jesus Carrero
BACKGROUND: Hypo- and hyperkalemia in clinical settings are insufficiently characterized and large-scale data from Europe lacking. We studied incidence and determinants of these abnormalities in a large Swedish healthcare system. METHODS: Observational study from the Stockholm CREAtinine Measurements project, including adult individuals from Stockholm accessing healthcare in 2009 (n=364,955). Over 3-years, we estimated the incidence of hypokalemia, defined as potassium<3...
July 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28733880/effect-of-asiatic-acid-on-the-ang-ii-at1r-nadph-oxidase-nf-%C3%AE%C2%BAb-pathway-in-renovascular-hypertensive-rats
#9
Putcharawipa Maneesai, Sarawoot Bunbupha, Upa Kukongviriyapan, Laddawan Senggunprai, Veerapol Kukongviriyapan, Parichat Prachaney, Poungrat Pakdeechote
Asiatic acid, a triterpenoid compound derived from Centella asiatica, has been demonstrated to have antioxidant and anti-inflammatory effects. The present study evaluated the effects of asiatic acid on hemodynamic alterations, renin-angiotensin system (RAS), oxidative stress, and inflammation in 2K-1C hypertensive rats. Renovascular hypertension was induced in male Sprague-Dawley rats and treated with vehicle, asiatic acid (30 mg/kg/day), or captopril (5 mg/kg/day) for 4 weeks. We observed that 2K-1C hypertensive rats exhibited hemodynamic alterations such as high blood pressure, heart rate, hindlimb vascular resistance, and low hindlimb blood flow...
July 21, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28733450/muscle-sympathetic-nerve-activity-and-volume-regulating-factors-in-healthy-pregnant-and-non-pregnant-women
#10
Nisha Charkoudian, Charlotte W Usselman, Rachel J Skow, Jeffery S Staab, Colleen Glyde Julian, Michael K Stickland, Radha S Chari, Rshmi Khurana, Sandra T Davidge, Margie H Davenport, Craig D Steinback
Healthy, normotensive human pregnancies are associated with striking increases in both plasma volume and vascular sympathetic nerve activity (SNA). In non-pregnant humans, volume regulatory factors including plasma osmolality, vasopressin and the renin-angiotensin-aldosterone system have important modulatory effects on control of sympathetic outflow. We hypothesized that pregnancy would be associated with changes in the relationships between SNA (measured as muscle SNA) and volume regulating factors, including plasma osmolality, plasma renin activity and arginine vasopressin (AVP)...
July 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28731289/current-status-of-achieving-blood-pressure-target-and-its-clinical-correlates-in-japanese-type-2-diabetes
#11
Hiroki Yokoyama, Shin-Ichi Araki, Koichi Kawai, Koichi Hirao, Yoshio Kurihara, Hiroaki Seino, Hiroshi Takamura, Hidekatsu Sugimoto, Akira Okada, Hiroshi Maegawa
AIMS/INTRODUCTION: To investigate the current status of achieved blood pressure levels in association with the number of antihypertensive drug classes as of 2013, and to explore the clinical correlates with achievement of target blood pressure in a large-scale cohort of Japanese subjects with type 2 diabetes. MATERIALS AND METHODS: A nationwide survey was conducted including 12,811 subjects with type 2 diabetes. Subjects were divided by achieved blood pressure, <130/80 or 140/90 mmHg, and the number of drug classes taken...
July 21, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28730079/effect-of-angiotensin-ii-type-1-receptor-blocker-and-angiotensin-converting-enzyme-inhibitor-on-the-intraocular-growth-factors-and-their-receptors-in-streptozotocin-induced-diabetic-rats
#12
Ik Soo Byon, Dong Hyun Lee, Eun Sook Jun, Min Kyu Shin, Sung Who Park, Ji Eun Lee
AIM: To investigate the effect of angiotensin II type 1 receptor blocker (ARB) and angiotensin converting enzyme inhibitor (ACEI) on intraocular growth factors and their receptors in streptozotocin-induced diabetic rats. METHODS: Forty Sprague-Dawley rats were divided into 4 groups: control, diabetes mellitus (DM), candesartan-treated DM, and enalapril-treated DM (each group, n=10). After the induction of DM by streptozotocin, candesartan [ARB, 5 mg/(kg·d)] and enalapril [ACEI, 10 mg/(kg·d)] were administered to rats orally for 4wk...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28729036/molecular-mechanisms-of-renal-aging
#13
REVIEW
Roland Schmitt, Anette Melk
Epidemiologic, clinical, and molecular evidence suggest that aging is a major contributor to the increasing incidence of acute kidney injury and chronic kidney disease. The aging kidney undergoes complex changes that predispose to renal pathology. The underlying molecular mechanisms could be the target of therapeutic strategies in the future. Here, we summarize recent insight into cellular and molecular processes that have been shown to contribute to the renal aging phenotype.The main clinical finding of renal aging is the decrease in glomerular filtration rate, and its structural correlate is the loss of functioning nephrons...
July 17, 2017: Kidney International
https://www.readbyqxmd.com/read/28727756/dysregulation-of-micrornas-and-renin-angiotensin-system-in-high-salt-diet-induced-cardiac-dysfunction-in-uninephrectomized-rats
#14
Venkateswara Rao Amara, Sunil Kumar Surapaneni, Kulbhushan Tikoo
Uninephrectomy is not associated with major adverse events in cardiovascular and renal functions of live kidney donors. The effect of high salt diet on the quality of life of live kidney donors is largely unknown. Hence in this study, we aimed to determine the effect of high salt diet on the alterations of renin-angiotensin system and microRNAs leading to CV and renal dysfunction in uninephrectomized rats. In order to mimic clinical scenario, uninephrectomized male Sprague Dawley rats were fed initially with normal pellet diet for 12 weeks and then for 20 weeks with high salt (10% w/w NaCl) diet...
2017: PloS One
https://www.readbyqxmd.com/read/28725324/cardiorenal-syndrome-role-of-arginine-vasopressin-and-vaptans-in-heart-failure
#15
REVIEW
Poornima Vinod, Vinod Krishnappa, Abigail M Chauvin, Anshika Khare, Rupesh Raina
Heart and kidney failure continued to be of increasing prevalence in today's society, and their comorbidity has synergistic effect on the morbidity and mortality of patients. Cardiorenal syndrome (CRS) is a complex disease with multifactorial pathophysiology. Better understanding of this pathophysiological network is crucial for the successful intervention to prevent advancement of the disease process. One of the major factors in this process is neurohormonal activation, predominantly involving renin-angiotensin-aldosterone system (RAAS) and arginine vasopressin (AVP)...
June 2017: Cardiology Research
https://www.readbyqxmd.com/read/28724651/hyperkalemia-after-initiating-renin-angiotensin-system-blockade-the-stockholm-creatinine-measurements-scream-project
#16
Ghassan Bandak, Yingying Sang, Alessandro Gasparini, Alex R Chang, Shoshana H Ballew, Marie Evans, Johan Arnlov, Lars H Lund, Lesley A Inker, Josef Coresh, Juan-Jesus Carrero, Morgan E Grams
BACKGROUND: Concerns about hyperkalemia limit the use of angiotensin-converting enzyme inhibitors (ACE-I) and angiotensin receptor blockers (ARBs), but guidelines conflict regarding potassium-monitoring protocols. We quantified hyperkalemia monitoring and risks after ACE-I/ARB initiation and developed and validated a hyperkalemia susceptibility score. METHODS AND RESULTS: We evaluated 69 426 new users of ACE-I/ARB therapy in the Stockholm Creatinine Measurements (SCREAM) project with medication initiation from January 1, 2007 to December 31, 2010, and follow-up for 1 year thereafter...
July 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28724611/tumor-necrosis-factor-alpha-kidney-function-and-hypertension
#17
Eamonn Mehaffey, Dewan Syed Abdul Majid
Hypertension is considered to be a low-grade inflammatory condition characterized by the presence of various pro-inflammatory cytokines. The inflammatory cytokine Tumor Necrosis Factor-alpha (TNF-α) is a constituent of the pro-inflammatory environment that is associated with salt-sensitive hypertension (SSH) and related renal injury. Elevated angiotensin II (AngII) and other factors such as oxidative stress conditions promote TNF-α formation. Many recent studies have provided evidence that TNF-α exerts a direct renal action by regulating hemodynamic and excretory function in the kidney...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28722461/-disorders-of-water-and-electrolyte-metabolism-and-changes-in-acid-base-balance-in-patients-with-ascitic-liver-cirrhosis
#18
Halima Gottfriedová, Miroslava Horáčková, Milena Čáslavská, Julius Špičák, Otto Schück
In patients with advanced cirrhosis with ascites disorders of water and electrolyte metabolism are often present and they are associated with changes in acid-base balance. These changes can be very complicated, their diagnosis and treatment difficult. Dilutional hyponatremia is the most common disorder. Hyponatremia in these patients is associated with increased morbidity and mortality before and after liver transplantation. Other common disorders include hyperchloremic acidosis, hypokalemia, metabolic alkalosis, lactic acidosis, respiratory alkalosis...
2017: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/28721063/annual-deterioration-of-renal-function-in-hypertensive-patients-with-and-without-diabetes
#19
Jorge Polonia, André Azevedo, Miguel Monte, José A Silva, Susana Bertoquini
BACKGROUND: Chronic kidney disease (CKD) complicates hypertension and diabetes. Knowledge of the deterioration rate of CKD may anticipate adjustment of therapies with renal elimination. This study evaluates the rate of annual deterioration of renal function in hypertensive patients either with type 2 diabetes (DM2) or without it (non-DM) followed for 5 years and relates it with blood pressure (BP) and glycemic control. MATERIALS AND METHODS: Out of a total of 1924 patients, 1023 patients (594 non-DM and 429 DM2, 53% female, aged 62...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28720877/role-of-the-histone-deacetylase-inhibitor-valproic-acid-in-high-fat-diet-induced-hypertension-via-inhibition-of-hdac1-angiotensin-ii-axis
#20
J Choi, S Y Park, T K Kwon, S-I Sohn, K M Park, J I Kim
BACKGROUND: Obesity is known as an epidemic worldwide because of consumption of westernized high-fat diets and one of the major risk factors of hypertension. Histone deacetylases (HDACs) control gene expression by regulating histone/non-histone protein deacetylation. HDAC inhibitors exert anti-cancer and anti-inflammatory effects and play a protective role in cardiovascular diseases. In the present study, we tested the effect of an FDA-approved pan-HDAC inhibitor valproic acid (VPA) on high-fat diet (HFD)-induced hypertension in mice...
July 19, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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