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https://www.readbyqxmd.com/read/28747358/urinary-renin-angiotensin-markers-in-polycystic-kidney-disease
#1
Mahdi Salih, Dominique M Bovee, Lodi C W Roksnoer, Niek F Casteleijn, Stephan J L Bakker, Ronald T Gansevoort, Robert Zietse, A H Jan Danser, Ewout J Hoorn
In autosomal dominant polycystic kidney disease (ADPKD) activation of the renin-angiotensin aldosterone system (RAAS) may contribute to hypertension and disease progression. Although previous studies focused on circulating RAAS-components, preliminary evidence suggests APDKD may increase urinary RAAS-components. Therefore, our aim was to analyze circulating and urinary RAAS-components in ADPKD. We cross-sectionally compared 60 patients with ADPKD to 57 patients with non-ADPKD chronic kidney disease (CKD). The two groups were matched by gender, estimated glomerular filtration rate (eGFR), blood pressure, and RAAS-inhibitor use...
July 26, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28739050/reduced-water-intake-deteriorates-glucose-regulation-in-patients-with-type-2-diabetes
#2
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/28737695/predictive-structure-and-topology-of-peroxisomal-atp-binding-cassette-abc-transporters
#3
Pierre Andreoletti, Quentin Raas, Catherine Gondcaille, Mustapha Cherkaoui-Malki, Doriane Trompier, Stéphane Savary
The peroxisomal ATP-binding Cassette (ABC) transporters, which are called ABCD1, ABCD2 and ABCD3, are transmembrane proteins involved in the transport of various lipids that allow their degradation inside the organelle. Defective ABCD1 leads to the accumulation of very long-chain fatty acids and is associated with a complex and severe neurodegenerative disorder called X-linked adrenoleukodystrophy (X-ALD). Although the nucleotide-binding domain is highly conserved and characterized within the ABC transporters family, solid data are missing for the transmembrane domain (TMD) of ABCD proteins...
July 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28737438/prenatal-exposure-to-angiotensin-ii-increases-blood-pressure-and-decreases-salt-sensitivity-in-rats
#4
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/28735253/how-should-i-treat-a-patient-with-a-symptomatic-and-severe-low-flow-low-gradient-aortic-stenosis-and-an-incidental-abdominal-aortic-aneurysm
#5
Zouhair Rahhab, Sander Ten Raa, Nathalie van der Ploeg, Nicolas M Van Mieghem, Hence Verhagen, Peter P T de Jaegere, Mani Arsalan, Won Kim, Thomas Walther, Didier Tchétché
No abstract text is available yet for this article.
July 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28725324/cardiorenal-syndrome-role-of-arginine-vasopressin-and-vaptans-in-heart-failure
#6
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/28716988/blood-pressure-lowering-and-safety-improvements-with-liver-angiotensinogen-inhibition-in-models-of-hypertension-and-kidney-injury
#7
Adam E Mullick, Steve T Yeh, Mark J Graham, Jeffery A Engelhardt, Thazha P Prakash, Rosanne M Crooke
Uncontrolled hypertension is an important contributor to cardiovascular disease. Despite the armamentarium of antihypertensive treatments, there remains a need for novel agents effective in individuals who cannot reach acceptable blood pressure levels. Inhibitors targeting the renin-angiotensin-aldosterone system (RAAS) are widely used but may not optimally inhibit RAAS and demonstrate an acceptable safety profile. Experiments were conducted to characterize a series of AGT (angiotensinogen) antisense oligonucleotides (ASOs) and compare their efficacy and tolerability to traditional RAAS blockade...
July 17, 2017: Hypertension
https://www.readbyqxmd.com/read/28711910/combined-renin-angiotensin-aldosterone-system-blockade-and-statin-therapy-effectively-reduces-the-risk-of-cerebrovascular-accident-in-autosomal-dominant-polycystic-kidney-disease-a-nationwide-population-based-cohort-study
#8
Pei-Hsun Sung, Hsin-Ju Chiang, Mel S Lee, John Y Chiang, Hon-Kan Yip, Yao-Hsu Yang
Fairly limited data reported the incidence and risk of cerebrovascular accident (CVA) in autosomal dominant polycystic kidney disease (ADPKD). Additionally, little is known regarding the therapeutic impact of renin-angiotensin-aldosterone system (RAAS) blockade and statin on reducing the occurrence of CVA in ADPKD. We utilized the data from Taiwan National Health Insurance Research Database (NHIRD) to perform a population-based cohort study (1997-2013). A total of 2,647 patients with ADPKD were selected from 1,000,000 general population after excluding patients with age<18, renal replacement therapy and concomitant diagnosis of CVA...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28691001/hand-assisted-laparoscopic-nephrectomy-and-auto-transplantation-for-a-hilar-renal-artery-aneurysm-a-case-report
#9
Min Jung Kim, Kyo Won Lee, Jae Berm Park, Sung Joo Kim
A 52-year-old man was admitted with an incidentally detected right renal artery aneurysm (RAA). Computed tomographic angiography with three-dimensional reconstruction revealed that the aneurysm was 2.2 cm in diameter and located at the renal hilum. We performed hand-assisted laparoscopic nephrectomy with ex vivo repair of the RAA and auto-transplantation with minimal elongation of Gibson incision. The operation and postoperative course were uneventful. At last follow-up, the patient was alive with a well-functioning auto-transplant...
June 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28690496/dynamic-changes-in-the-renin-angiotensin-aldosterone-system-and-the-beneficial-effects-of-renin-angiotensin-aldosterone-inhibitors-on-spatial-learning-and-memory-in-a-rat-model-of-chronic-cerebral-ischemia
#10
Xinwu Huang, Guozhou Lu, Guochun Li, Hua Li, Beihua Li, Jiazhen Yin, Shousong Cao
Renin-angiotensin-aldosterone system (RAAS) plays an important role in the regulation of blood pressure and brain function. Therefore, we studied the dynamic changes in the RAAS in the blood, cerebral cortex, and hippocampus and the effects of RAAS inhibitors on spatial learning and memory and hippocampal apoptosis in a rat model of chronic cerebral ischemia (CCI) established by bilateral ligation of the common carotid arteries of rats. The levels of renin, angiotensin II (Ang II), and aldosterone (ALD) in the plasma, and the homogenates of the left side of cerebral cortex and whole hippocampus of rats were detected on day 1, 3, 7, 14, 21, and 30 by radioimmunoassay...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28689178/sacubitril-valsartan-beyond-natriuretic-peptides
#11
REVIEW
Jagdeep S S Singh, Louise M Burrell, Myriam Cherif, Iain B Squire, Andrew L Clark, Chim C Lang
Natriuretic peptides, especially B-type natriuretic peptide (BNP), have primarily been regarded as biomarkers in heart failure (HF). However, they are also possible therapeutic agents due to their potentially beneficial physiological effects. The angiotensin receptor-neprilysin inhibitor, sacubitril/valsartan, simultaneously augments the natriuretic peptide system (NPS) by inhibiting the enzyme neprilysin (NEP) and inhibits the renin-angiotensin-aldosterone system (RAAS) by blocking the angiotensin II receptor...
July 8, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28685934/does-sglt2-inhibition-with-dapagliflozin-overcome-individual-therapy-resistance-to-raas-inhibition
#12
Sergei Petrykiv, Goos Laverman, Dick de Zeeuw, Hiddo J L Heerspink
AIMS: Individual patients show a large variation in their response to renin-angiotensin-aldosteron-system blockade both in surrogates like albuminuria and hard renal outcomes. Sodium-glucose co-transporter 2 inhibitors (SGLT2) have been shown to lower albuminuria and to confer cardiovascular and possibly renal protection. To establish whether individual therapy resistance to RAASi can be overcome by adding an SGLT2 inhibitor we assessed individual albuminuria responses in patients exposed both to RAASi and the SGLT2 inhibitor dapagliflozin...
July 7, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28680564/kidney-dysfunction-in-patients-with-pulmonary-arterial-hypertension
#13
REVIEW
N P Nickel, J M O'Leary, E L Brittain, J P Fessel, R T Zamanian, J D West, E D Austin
Pulmonary arterial hypertension (PH) and chronic kidney disease (CKD) both profoundly impact patient outcomes, whether as primary disease states or as co-morbid conditions. PH is a common co-morbidity in CKD and vice versa. A growing body of literature describes the epidemiology of PH secondary to chronic kidney disease and end-stage renal disease (ESRD) (WHO group 5 PH). But, there are only limited data on the epidemiology of kidney disease in group 1 PH (pulmonary arterial hypertension [PAH]). The purpose of this review is to summarize the current data on epidemiology and discuss potential disease mechanisms and management implications of kidney dysfunction in PAH...
March 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28680167/efficiency-and-specificity-of-raas-inhibitors-in-cardiovascular-diseases-how-to-achieve-better-end-organ-protection
#14
REVIEW
Ali Nehme, Kazem Zibara
RAAS, a major pharmacological target in cardiovascular medicine, is inhibited by pharmacological classes including angiotensin converting enzyme (ACE) inhibitors (ACEIs), angiotensin-II type 1 blockers (ARBs) and aldosterone receptors antagonists, in addition to the recently introduced direct renin inhibitors (DRIs). However, currently used RAAS inhibitors still cannot achieve their desired effects and are associated with certain drawbacks, such as adverse side effects, incomplete blockage of the system and poor end-organ protection...
July 6, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28666704/systemic-and-tissue-specific-effects-of-aliskiren-on-the-raas-and-carbohydrate-lipid-metabolism-in-obese-patients-with-hypertension
#15
Stefan Engeli, Marcus May, Juerg Nussberger, A H Jan Danser, William P Dole, Margaret F Prescott, Marion Dahlke, Sylvie Stitah, Parasar Pal, Michael Boschmann, Jens Jordan
Aliskiren penetrates adipose and skeletal muscle in hypertensive patients with abdominal obesity and reduces renin-angiotensin-aldosterone system activity. After discontinuation, blood pressure-lowering effects are observed possibly through drug-tissue binding. We performed microdialysis evaluation of adipose tissue and skeletal muscle before and during an insulin-modified frequently sampled intravenous glucose tolerance test (IM-FSIGT). Aliskiren 300 mg (n = 8) or amlodipine 5 mg (n = 8) once daily were administered during a 12-week randomized treatment period...
June 12, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28656517/treatment-of-hyperkalemia-in-heart-failure
#16
REVIEW
Ersilia M DeFilippis, Akshay S Desai
PURPOSE OF REVIEW: The aim of this paper is to discuss strategies for prevention and management of hyperkalemia in patients with heart failure, including the role of novel therapies. RECENT FINDINGS: Renin-angiotensin-aldosterone system (RAAS) antagonists, including angiotensin-converting enzyme inhibitors (ACEI), angiotensin receptor blockers (ARB), and mineralocorticoid receptor antagonists (MRA) decrease mortality and morbidity in heart failure but increase the risk of hyperkalemia, especially when used in combination...
June 27, 2017: Current Heart Failure Reports
https://www.readbyqxmd.com/read/28650605/angiotensin-ii-enhancement-during-pregnancy-influences-the-emotionality-of-rat-offspring-rattus-norvegicus-in-adulthood-potential-use-of-the-rat-grimace-scale
#17
(no author information available yet)
OBJECTIVES: One of the systems, which can be prenatally reprogrammed, is the renin-angiotensin-aldosterone system (RAAS). The aim of our experiment was to determine how prenatal activation of RAAS via exposure to elevated levels of angiotensin II (Ang II) influences the rat offspring's emotionality. METHODS: Pregnant female rats were implanted with osmotic minipumps that continually released Ang II and oval object of the same shape and size was implanted into control dams...
May 26, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28648436/angiotensin-converting-enzyme-inhibitors-and-receptor-blockers-in-heart-failure-and-chronic-kidney-disease-demystifying-controversies
#18
REVIEW
Kader Muneer, Anishkumar Nair
In clinical setting, congestive heart failure (CHF) and chronic kidney disease (CKD) often co-exist in patients due to common underlying predisposing factors. An intricate equilibrium between the cardiovascular and renal system is maintained through rennin angiotensin-aldosterone axis and autonomic nervous system. Consequent to favorable hemodynamic modification, angiotensin converting enzyme inhibitors (ACEI) and angiotensin receptor blocking (ARB) therapy have proven to be an indispensable aspect of heart failure management with morbidity and mortality benefit...
May 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28634052/management-of-wide-based-renal-artery-aneurysms-using-noncovered-stent-assisted-coil-embolization
#19
Xiaolong Wei, Yudong Sun, Yani Wu, Zhenjiang Li, Jiang Zhu, Zhiqing Zhao, Rui Feng, Zaiping Jing
OBJECTIVE: This study describes the safety and midterm efficacy of a noncovered stent-assisted embolization (SAE) technique in treating patients with wide-base renal artery aneurysms (RAAs). METHODS: Between February 2011 and June 2014, 34 RAAs in 28 consecutive patients were treated with noncovered SAE in our center. RESULTS: Technical success was 100%. During an average follow-up of 19 months, the systolic and diastolic blood pressures were significantly decreased...
June 17, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28625483/silymarin-protects-against-renal-injury-through-normalization-of-lipid-metabolism-and-mitochondrial-biogenesis-in-high-fat-fed-mice
#20
Bin Feng, Ran Meng, Bin Huang, Yan Bi, Shanmei Shen, Dalong Zhu
Obesity is associated with an increased risk of chronic kidney diseases and the conventional treatment with renin-angiotensin-aldosterone system (RAAS) inhibitors is not enough to prevent renal injury and prolong the progression of disease. Recently, silymarin has shown protective effects on renal tissue injury, but the underlying mechanisms remain elusive. The goal of this study was to investigate the potential capacity of silymarin to prevent renal injury during obesity induced by high fat diet (HFD) in mice...
June 15, 2017: Free Radical Biology & Medicine
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