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https://www.readbyqxmd.com/read/28274845/exploring-the-interactions-of-irbesartan-and-irbesartan-2-hydroxypropyl-%C3%AE-cyclodextrin-complex-with-model-membranes
#1
Αdamantia S Liossi, Dimitrios Ntountaniotis, Tahsin F Kellici, Maria V Chatziathanasiadou, Grigorios Megariotis, Maria Mania, Johanna Becker-Baldus, Manfred Kriechbaum, Andraž Krajnc, Eirini Christodoulou, Clemens Glaubitz, Michael Rappolt, Heinz Amenitsch, Gregor Mali, Doros N Theodorou, Georgia Valsami, Marinos Pitsikalis, Hermis Iatrou, Andreas G Tzakos, Thomas Mavromoustakos
The interactions of irbesartan (IRB) and irbesartan-2-hydroxypropyl-β-cyclodextrin (HP-β-CD) complex with dipalmitoyl phosphatidylcholine (DPPC) bilayers have been explored utilizing an array of biophysical techniques ranging from differential scanning calorimetry (DSC), small angle X-ray scattering (SAXS), ESI mass spectrometry (ESI-MS) and solid state nuclear magnetic resonance (ssNMR). Molecular dynamics (MD) calculations have been also conducted to complement the experimental results. Irbesartan was found to be embedded in the lipid membrane core and to affect the phase transition properties of the DPPC bilayers...
March 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28260186/efficacy-of-zofenopril-vs-irbesartan-in-combination-with-a-thiazide-diuretic-in-hypertensive-patients-with-multiple-risk-factors-not-controlled-by-a-previous-monotherapy-a-review-of-the-double-blind-randomized-z-studies
#2
REVIEW
Stefano Omboni, Ettore Malacco, Claudio Napoli, Pietro Amedeo Modesti, Athanasios Manolis, Gianfranco Parati, Enrico Agabiti-Rosei, Claudio Borghi
Combinations between an angiotensin converting enzyme (ACE) inhibitor or an angiotensin II receptor blocker (ARB) and hydrochlorothiazide (HCTZ) are among the recommended treatments for hypertensive patients uncontrolled by monotherapy. Four randomized, double-blind, parallel group studies with a similar design, including 1469 hypertensive patients uncontrolled by a previous monotherapy and with ≥1 cardiovascular risk factor, compared the efficacy of a combination of a sulfhydryl ACE inhibitor (zofenopril at 30 or 60 mg) or an ARB (irbesartan at 150 or 300 mg) plus HCTZ 12...
March 4, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28214398/effects-of-recirculation-in-a-three-tank-pilot-scale-system-for-pharmaceutical-removal-with-powdered-activated-carbon
#3
Victor Kårelid, Gen Larsson, Berndt Björlenius
The removal of pharmaceutically active compounds by powdered activated carbon (PAC) in municipal wastewater is a promising solution to the problem of polluted recipient waters. Today, an efficient design strategy is however lacking with regard to high-level overall, and specific, substance removal in the large scale. The performance of PAC-based removal of pharmaceuticals was studied in pilot-scale with respect to the critical parameters; contact time and PAC dose using one PAC product selected by screening in bench-scale...
May 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28190578/quarter-dose-quadruple-combination-therapy-for-initial-treatment-of-hypertension-placebo-controlled-crossover-randomised-trial-and-systematic-review
#4
Clara K Chow, Jay Thakkar, Alex Bennett, Graham Hillis, Michael Burke, Tim Usherwood, Kha Vo, Kris Rogers, Emily Atkins, Ruth Webster, Michael Chou, Hakim-Moulay Dehbi, Abdul Salam, Anushka Patel, Bruce Neal, David Peiris, Henry Krum, John Chalmers, Mark Nelson, Christopher M Reid, Mark Woodward, Sarah Hilmer, Simon Thom, Anthony Rodgers
BACKGROUND: Globally, most patients with hypertension are treated with monotherapy, and control rates are poor because monotherapy only reduces blood pressure by around 9/5 mm Hg on average. There is a pressing need for blood pressure-control strategies with improved efficacy and tolerability. We aimed to assess whether ultra-low-dose combination therapy could meet these needs. METHODS: We did a randomised, placebo-controlled, double-blind, crossover trial of a quadpill-a single capsule containing four blood pressure-lowering drugs each at quarter-dose (irbesartan 37·5 mg, amlodipine 1·25 mg, hydrochlorothiazide 6·25 mg, and atenolol 12·5 mg)...
March 11, 2017: Lancet
https://www.readbyqxmd.com/read/28179883/new-microrna-biomarkers-for-drug-induced-steatosis-and-their-potential-to-predict-the-contribution-of-drugs-to-non-alcoholic-fatty-liver-disease
#5
Mireia López-Riera, Isabel Conde, Laia Tolosa, Ángela Zaragoza, José V Castell, María J Gómez-Lechón, Ramiro Jover
Background and Aims: Drug-induced steatosis is a major reason for drug failure in clinical trials and post-marketing withdrawal; and therefore, predictive biomarkers are essential. These could be particularly relevant in non-alcoholic fatty liver disease (NAFLD), where most patients show features of the metabolic syndrome and are prescribed with combined chronic therapies, which can contribute to fatty liver. However, specific biomarkers to assess the contribution of drugs to NAFLD are lacking. We aimed to find microRNAs (miRNAs) responsive to steatotic drugs and to investigate if they could become circulating biomarkers for drug-induced steatosis...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28144715/cardioprotective-effects-of-irbesartan-in-polymicrobial-sepsis-the-role-of-the-p38mapk-nf-%C3%AE%C2%BAb-signaling-pathway
#6
N G Yousif, N R Hadi, F Al-Amran, Q A Zigam
BACKGROUND: Sepsis is a systemic inflammatory response usually correlated with multi-organ failure. Myocardial dysfunction is one of the adverse outcomes in septic patients and results in high mortality rates. The aim of this study was to investigate the impact of irbesartan in attenuation of cardiac depression during polymicrobial sepsis via decreased activation of the phospho-p38MAPK/nuclear factor (NF)-κB signaling pathway. MATERIALS AND METHODS: A model of polymicrobial sepsis induced via cecal ligation and puncture (CLP) with 8- to 12-week-old albino mice was used...
January 31, 2017: Herz
https://www.readbyqxmd.com/read/28101724/drug-drug-multicomponent-solid-forms-cocrystal-coamorphous-and-eutectic-of-three-poorly-soluble-antihypertensive-drugs-using-mechanochemical-approach
#7
Jamshed Haneef, Renu Chadha
The present study deals with the application of mechanochemical approach for the preparation of drug-drug multicomponent solid forms of three poorly soluble antihypertensive drugs (telmisartan, irbesartan and hydrochlorothiazide) using atenolol as a coformer. The resultant solid forms comprise of cocrystal (telmisartan-atenolol), coamorphous (irbesartan-atenolol) and eutectic (hydrochlorothiazide-atenolol). The study emphasizes that solid-state transformation of drug molecules into new forms is a result of the change in structural patterns, diminishing of dimers and creating new facile hydrogen bonding network based on structural resemblance...
January 18, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28052977/clinical-and-echocardiographic-characteristics-and-cardiovascular-outcomes-according-to-diabetes-status-in-patients-with-heart-failure-and-preserved-ejection-fraction-a-report-from-the-i-preserve-trial-irbesartan-in-heart-failure-with-preserved-ejection-fraction
#8
Søren L Kristensen, Ulrik M Mogensen, Pardeep S Jhund, Mark C Petrie, David Preiss, Sithu Win, Lars Køber, Robert S McKelvie, Michael R Zile, Inder S Anand, Michel Komajda, John S Gottdiener, Peter E Carson, John J V McMurray
BACKGROUND: In patients with heart failure and preserved ejection fraction, little is known about the characteristics of, and outcomes in, those with and without diabetes mellitus. METHODS: We examined clinical and echocardiographic characteristics and outcomes in the I-Preserve trial (Irbesartan in Heart Failure With Preserved Ejection Fraction) according to history of diabetes mellitus. Cox regression models were used to estimate hazard ratios for cardiovascular outcomes adjusted for known predictors, including age, sex, natriuretic peptides, and comorbidity...
February 21, 2017: Circulation
https://www.readbyqxmd.com/read/27951594/beneficial-effects-of-combined-at1-receptor-neprilysin-inhibition-arni-versus-at1-receptor-blockade-alone-in-the-diabetic-eye
#9
Tuhina Prasad, Lodi C W Roksnoer, Ping Zhu, Amrisha Verma, Yiming Li, Wendy W Batenburg, René de Vries, A H Jan Danser, Qiuhong Li
Purpose: Dysfunction of the renin-angiotensin system (RAS) contributes to pathogenesis of diabetic retinopathy (DR). Yet RAS blockers have only limited beneficial effects on progression of DR in clinical trials. The natriuretic peptide system offsets RAS, so that enhancing the activity of this system on top of RAS blockade might be beneficial. Neprilysin has an important role in the degradation of natriuretic peptides. Therefore, we hypothesize that dual angiotensin receptor-neprilysin inhibition (ARNI) may outperform angiotensin receptor blocker (ARB) in protection against DR...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27943353/two-selective-hptlc-methods-for-determination-of-some-angiotensin-ii-receptor-antagonists-in-tablets-and-biological-fluids
#10
Gamal A Salah, Hanaa M Abd El-Wadood, Mohamed Khairy, Ahmed A Khorshed
Two simple, selective, precise and highly sensitive high-performance thin-layer chromatography (HPTLC) methods have been developed and validated for analysis of five angiotensin II receptor antagonists, namely losartan, irbesartan valsartan, candesartan and olmesartan, which are widely used in clinical practice. HPTLC of the drugs was performed on pre-coated silica gel HPTLC plates 60 F254 by development using a mobile phase composed of chloroform-acetone-glacial acetic acid (7.8:1.5:0.7m v/v/v), which was suitable for all of the studied drugs...
December 10, 2016: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/27936999/effect-of-single-pill-irbesartan-amlodipine-combination-based-therapy-on-clinic-and-home-blood-pressure-profiles-in-hypertension-with-chronic-kidney-diseases
#11
RANDOMIZED CONTROLLED TRIAL
Ryu Kobayashi, Kouichi Tamura, Hiromichi Wakui, Masato Ohsawa, Kengo Azushima, Sona Haku, Kazushi Uneda, Kohji Ohki, Kotaro Haruhara, Sho Kinguchi, Satoshi Umemura
We examined the efficacy of single-pill irbesartan/amlodipine combination-based therapy for 12 weeks in 20 hypertensive chronic kidney disease (CKD) patients, by evaluating self-measured home blood pressure (BP) profile. The single-pill irbesartan/amlodipine combination-based therapy decreased clinic BP and home BP (morning, evening, and nighttime BPs), and improved within-visit clinic BP variability, day-by-day home BP variability (morning and evening), and nighttime home BP variability. Furthermore, the single-pill combination-based therapy reduced albuminuria and exerted improved parameters of vascular function...
2016: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/27932705/possible-role-for-glomerular-derived-angiotensinogen-in-nephrotic-syndrome
#12
Mihoko Yamazaki, Yoshiyasu Fukusumi, Mutsumi Kayaba, Yukina Kitazawa, Sayuri Takamura, Ichiei Narita, Hiroshi Kawachi
BACKGROUND AND OBJECTIVE: Renin-angiotensin system (RAS) inhibitors reduce glomerular injury and proteinuria, indicating that angiotensin II (Ang II) is involved in glomerular diseases. Although the local RAS is reported to play an essential role in maintaining local tissue functions, the role of the local RAS in regulating glomerular function is not well evaluated. In this study, we analyzed the glomerular expression of RAS components in nephrotic models and the effect of Ang II receptor blockers (ARB) on the expression of angiotensinogen (AGT)...
October 2016: Journal of the Renin-angiotensin-aldosterone System: JRAAS
https://www.readbyqxmd.com/read/27919004/irbesartan-ameliorates-hyperlipidemia-and-liver-steatosis-in-type-2-diabetic-db-db-mice-via-stimulating-ppar-%C3%AE-ampk-akt-mtor-signaling-and-autophagy
#13
Juan Zhong, Wangqiu Gong, Lu Lu, Jing Chen, Zibin Lu, HongYu Li, Wenting Liu, Yangyang Liu, Mingqing Wang, Rong Hu, Haibo Long, Lianbo Wei
Irbesartan (Irb), a unique subset of angiotensin II receptor blockers (ARBs) with PPAR-γ activation function, has been reported to play a role in renal dysfunction, glucose metabolism, and abnormal lipid profile in diabetic animal models and humans. However, the underlying mechanisms that improve hyperlipidemia and liver steatosis are unclear. This study investigated the effects of Irb on lipid metabolism and hepatic steatosis using the spontaneous type 2 diabetic db/db mouse model. The results demonstrated body and liver weight, food consumption, lipid content in serum and liver tissue, and liver dysfunction as well as hepatic steatosis were increased in db/db mice compared with db/m mice, whereas the increases were reversed by Irb treatment...
January 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/27851610/1976-severe-hyperkalemia-with-trimethoprim-sulfamethoxazole-and-irbesartan-use-a-near-death-consequence
#14
Jaspreet Dhami, Harish Devineni, Christopher Milnes, Sunil Jagadesh
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27829955/efficacy-and-safety-of-a-single-pill-fixed-dose-combination-of-azilsartan-and-amlodipine
#15
Kota Motozato, Shin-Ichiro Miura, Yuhei Shiga, Takaaki Kusumoto, Keijiro Saku
BACKGROUND: Guidelines for the management of hypertension recommend the use of drugs with different mechanisms of action in antihypertensive regimens that include single-pill fixed-dose combinations of medications. There is some controversy regarding which single-pill fixed-dose combinations of angiotensin II type 1 receptor blockers (ARBs) and calcium channel blockers (CCBs) are effective at reducing blood pressure (BP). METHODS: Forty hypertensive patients who were receiving a single-pill fixed-dose combination of valsartan 80 mg/day and amlodipine 5 mg/day or irbesartan 100 mg/day and amlodipine 5 mg/day were enrolled...
December 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27829706/corrigendum-to-irbesartan-ameliorates-diabetic-nephropathy-by-suppressing-the-rankl-rank-nf-%C3%AE%C2%BAb-pathway-in-type-2-diabetic-db-db-mice
#16
Xiao-Wen Chen, Xiao-Yan Du, Yu-Xian Wang, Jian-Cheng Wang, Wen-Ting Liu, Wen-Jing Chen, Hong-Yu Li, Fen-Fen Peng, Zhao-Zhong Xu, Hong-Xin Niu, Hai-Bo Long
[This corrects the article DOI: 10.1155/2016/1405924.].
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27814397/the-interplay-between-the-renin-angiotensin-system-and-pacing-postconditioning-induced-cardiac-protection
#17
Fawzi Babiker, Aishah Al-Jarallah, Shaji Joseph
BACKGROUND: Accumulating evidence suggests a cardioprotective role of pacing postconditioning (PPC) maneuvers in animal models and more recently in humans. The procedure however remains to be optimized and its interaction with physiological systems remains to be further explored. The renin angiotensin system (RAS) plays a dual role in ischemia/reperfusion (I/R) injury. The interaction between RAS and PPC induced cardiac protection is however not clearly understood. We have recently demonstrated that angiotensin (1-7) via Mas receptor played a significant role in PPC mediated cardiac protection against I/R injury...
2016: PloS One
https://www.readbyqxmd.com/read/27804233/quality-of-life-development-during-initial-hemodialysis-therapy-and-association-with-loss-of-residual-renal-function
#18
Christina G Poulsen, Krista D Kjaergaard, Christian D Peters, Bente Jespersen, Jens D Jensen
Introduction Health related quality of life (HRQOL) is markedly reduced in hemodialysis patients compared to the general population. We investigated the course of self-reported HRQOL over time and the association with selected factors, focusing on changes in glomerular filtration rate (GFR). Methods Eighty-two newly started hemodialysis patients from the SAFIR cohort filled out the Kidney Disease Quality of Life Short Form Version 1.3 (KDQOL-SF(TM) ) questionnaire at baseline, 6 and 12 months. The SAFIR study was a randomized, placebo-controlled, double-blind intervention study, examining the effects of the angiotensin II receptor blocker irbesartan...
November 1, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27794380/effect-and-mechanism-of-irbesartan-on-occurrence-of-ventricular-arrhythmias-in-rats-with-myocardial-ischemia-through-connexin43-cx43
#19
Tao Wu, Dan Wu, Qinghua Wu, Bing Zou, Xiao Huang, Xiaoshu Cheng, Yanqing Wu, Kui Hong, Ping Li
OBJECTIVE: To explore the effect and mechanism of angiotensin II receptor blockers - Irbesartan on occurrence of ventricular arrhythmias in rats with myocardial ischemia. METHODS: Rats with embryonic cardiomyocytes-H9c2 were randomly divided into control group, ischemia group, Irbesartan group and Irbesartan + ischemia group. The cell viability of rats in each group was tested using MTT. Real-time PCR was employed to detect the expression of connexin43 (Cx43) mRNA and western blot to detect the expression of Cx43 and phosphorylated Cx43...
October 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27773659/ascending-aortic-adventitial-remodeling-and-fibrosis-are-ameliorated-with-apelin-13-in-rats-after-tac-via-suppression-of-the-mirna-122-and-lgr4-%C3%AE-catenin-signaling
#20
Ran Xu, Zhen-Zhou Zhang, Lai-Jiang Chen, Hui-Min Yu, Shu-Jie Guo, Ying-Le Xu, Gavin Y Oudit, Yan Zhang, Qing Chang, Bei Song, Dong-Rui Chen, Ding-Liang Zhu, Jiu-Chang Zhong
Apelin has been proved to be a critical mediator of vascular function and homeostasis. Here, we investigated roles of Apelin in aortic remodeling and fibrosis in rats with transverse aortic constriction (TAC). Male Sprague-Dawley rats were subjected to TAC and then randomized to daily deliver Apelin-13 (50μg/kg) or angiotensin type 1 receptor (AT1) blocker Irbesartan (50mg/kg) for 4 weeks. Pressure overload resulted in myocardial hypertrophy, systolic dysfunction, aortic remodeling and adventitial fibrosis with reduced levels of Apelin in ascending aortas of rat after TAC compared with sham-operated group...
December 2016: Peptides
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