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https://www.readbyqxmd.com/read/29214535/simultaneous-determination-of-41-multiclass-organic-pollutants-in-environmental-waters-by-means-of-polyethersulfone-microextraction-followed-by-liquid-chromatography-tandem-mass-spectrometry
#1
Leire Mijangos, Haizea Ziarrusta, Maitane Olivares, Olatz Zuloaga, Monika Möder, Nestor Etxebarria, Ailette Prieto
A new procedure using polyethersulfone (PES) microextraction followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis was developed in this work for the simultaneous determination of 41 multiclass priority and emerging organic pollutants including herbicides, hormones, personal care products, and pharmaceuticals, among others, in seawater, wastewater treatment plant (WWTP) effluents, and estuary samples. The optimization of the analysis included two different chromatographic columns and different variables (polarity, fragmentor voltage, collision energy, and collision cell accelerator) of the mass spectrometer...
December 6, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29172732/effect-of-amlodipine-efonidipine-and-trichlormethiazide-on-home-blood-pressure-and-upper-normal-microalbuminuria-assessed-by-casual-spot-urine-test-in-essential-hypertensive-patients
#2
Miki Hosaka, Ryusuke Inoue, Michihiro Satoh, Daisuke Watabe, Tomohiro Hanazawa, Takayoshi Ohkubo, Kei Asayama, Taku Obara, Yutaka Imai
The aim of this study was to assess the effects of irbesartan alone and combined with amlodipine, efonidipine, or trichlormethiazide on blood pressure (BP) and urinary albumin (UA) excretion in hypertensive patients with microalbuminuria (30≤UA/creatinine (Cr) ratio [UACR] <300 mg/g Cr) and upper-normal microalbuminuria (10≤UACR<30 mg/g Cr). This randomized controlled trial enrolled 175 newly diagnosed and untreated hypertensive patients (home systolic blood pressure [SBP]≥135 mmHg; 10≤UACR<300 mg/g Cr of casual spot urine at the first visit to clinic)...
November 27, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29155324/angiotensin-receptor-blocker-irbesartan-reduces-stress-induced-intestinal-inflammation-via-at1a-signaling-and-ace2-dependent-mechanism-in-mice
#3
Maimaiti Yisireyili, Yasuhiro Uchida, Koji Yamamoto, Takayuki Nakayama, Xian Wu Cheng, Tadashi Matsushita, Shigeo Nakamura, Toyoaki Murohara, Kyosuke Takeshita
Stress is associated with pathophysiology of both irritable bowel syndrome (IBS) and hypertension. Angiotensin receptor blockers (ARB) have anti-inflammatory properties via inhibition of angiotensin II (Ang II)/Ang II type I receptor axis (AT1). Inhibition of the classical RAS pathway is also involved in upregulation of angiotensin converting enzyme-2 (ACE2), which activates the Ang-(1-7) /Mas pathway to counteract inflammatory signaling and acts as a partner of the amino acid transporter, B(0)AT-1, to absorb tryptophan for regulation of microbiota-gut-brain axis...
November 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29142983/efficacy-and-safety-of-sparsentan-compared-with-irbesartan-in-patients-with-primary-focal-segmental-glomerulosclerosis-randomized-controlled-trial-design-duet
#4
Radko Komers, Debbie S Gipson, Peter Nelson, Sharon Adler, Tarak Srivastava, Vimal K Derebail, Kevin E Meyers, Pablo Pergola, Meghan E MacNally, Jennifer L Hunt, Alvin Shih, Howard Trachtman
Introduction: Primary focal segmental glomerulosclerosis (FSGS) is a leading cause of nephrotic syndrome and end-stage renal disease. There are no US Food and Drug Administration-approved therapies for FSGS, and treatment often fails to reduce proteinuria. Endothelin is an important factor in the pathophysiology of podocyte disorders, including FSGS. Sparsentan is a first-in-class, orally active, dual-acting angiotensin receptor blocker (ARB) and highly selective endothelin Type A receptor antagonist...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29114718/ascertainment-of-self-reported-prescription-medication-use-compared-with-pharmaceutical-claims-data
#5
Danijela Gnjidic, Wei Du, Sallie-Anne Pearson, Sarah N Hilmer, Emily Banks
BACKGROUND: Evidence on the comparative validity of self-reported medication use in large-scale studies is limited. This study compared self-reported medication use of prescription-only medications to gold standard pharmaceutical claims (i.e. dispensing) data. METHODS: We selected a random sample of 500 participants from the 45 and Up Study, a large-scale Australian study, with complete ascertainment of Pharmaceutical Benefits Scheme dispensing records. Self-reported medication use was ascertained by questionnaire requesting data on medications used "for most of the last 4 weeks"...
October 11, 2017: Public Health Research & Practice
https://www.readbyqxmd.com/read/29078953/the-application-of-a-novel-high-resolution-mass-spectrometry-based-analytical-strategy-to-rapid-metabolite-profiling-of-a-dual-drug-combination-in-humans
#6
Jie Xing, Meitong Zang, Huixiang Liu
Metabolite profiling of combination drugs in complex matrix is a big challenge. Development of an effective data mining technique for simultaneously extracting metabolites of one parent drug from both background matrix and combined drug-related signals could be a solution. This study presented a novel high resolution mass spectrometry (HRMS)-based data-mining strategy to fast and comprehensive metabolite identification of combination drugs in human. The model drug combination was verapamil-irbesartan (VER-IRB), which is widely used in clinic to treat hypertension...
November 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28966924/a-case-of-lipoprotein-glomerulopathy-with-apoe-chicago-and-apoe-glu3lys-treated-with-fenofibrate
#7
Hitoshi Kodera, Yasuhide Mizutani, Satoshi Sugiyama, Toshio Miyata, Takashi Ehara, Akira Matsunaga, Takao Saito
Lipoprotein glomerulopathy (LPG) is characterized by the accumulation of lipoprotein thrombi within glomerular capillaries. This rare disorder is associated with various types of mutations in the apolipoprotein E gene (apoE). Herein, we present a case of LPG with a combination of apoE Chicago (Arg147Pro) and apoE (Glu3Lys) mutations. A 51-year-old Japanese woman presented with severe (3+) proteinuria. The initial renal biopsy showed glomerular capillary dilation and occlusion with lipid granules, a specific characteristic of LPG...
May 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28951842/studies-on-jackfruit-seed-starch-as-a-novel-natural-superdisintegrant-for-the-design-and-evaluation-of-irbesartan-fast-dissolving-tablets
#8
Vidyadhara Suryadevara, Sasidhar Reddyvallam Lankapalli, Lakshmi Harika Danda, Vijetha Pendyala, Vijetha Katta
BACKGROUND: In the present investigation, an attempt was made to isolate starch from jackfruit seed powder and utilize it as a superdisintegrant to design fast dissolving tablets of irbesartan. METHODS: Starch was isolated from jackfruit seeds via aqueous and alkali extraction processes and evaluated for its physicochemical properties, for phytochemical tests, and for acute toxicity studies. Irbesartan fast dissolving formulations were prepared using the wet granulation technique...
September 2017: Integrative Medicine Research
https://www.readbyqxmd.com/read/28923834/is-chronic-dialysis-the-right-hard-renal-end-point-to-evaluate-renoprotective-drug-effects
#9
Misghina Weldegiorgis, Dick de Zeeuw, Jamie P Dwyer, Peter Mol, Hiddo J L Heerspink
BACKGROUND AND OBJECTIVES: RRT and doubling of serum creatinine are considered the objective hard end points in nephrology intervention trials. Because both are assumed to reflect changes in the filtration capacity of the kidney, drug effects, if present, are attributed to kidney protection. However, decisions to start RRT are not only on the basis of filtration capacity of the kidney, but also on other factors. We therefore compared the time to RRT with the time to a fixed eGFR threshold and assessed the effect of the renoprotective drug irbesartan on both components...
October 6, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28886992/study-on-the-effect-of-irbesartan-on-atrial-fibrillation-recurrence-in-kumamoto-atrial-fibrillation-suppression-trial-silk-study
#10
Hiroshige Yamabe, Koichi Kaikita, Toshiyuki Matsumura, Atsushi Iwasa, Junjiro Koyama, Takashi Uemura, Yasuhiro Morikami, Ryusuke Tsunoda, Kenji Morihisa, Kazuteru Fujimoto, Ichiro Kajiwara, Kunihiko Matsui, Kenichi Tsujita, Hisao Ogawa
BACKGROUND: Experimental studies suggest that angiotensin II-receptor blockers can influence atrial remodeling and may prevent atrial fibrillation (AF). Therefore, we hypothesized that irbesartan may prevent the recurrence of AF following either catheter ablation or electrical cardioversion of AF. METHODS: Study on the Effect of Irbesartan on Atrial Fibrillation Recurrence in Kumamoto (SILK study) is a prospective, multicenter, randomized, and open-label comparative evaluation of the effects of irbesartan and amlodipine on AF recurrence in hypertensive patients with AF who are scheduled to undergo catheter ablation or electrical cardioversion of AF...
September 5, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28763902/-role-of-yes-associated-protein-1-in-angiotensin%C3%A2-induced-pulmonary-fibrosis-in-rats
#11
M X Pan, B B Zheng, N N Sun, Z M Zheng, Q J Yang, Y Meng
Objective: To explore the mechanism of Yes-associated protein 1 (Yap1) in angiotensinⅡ(AngⅡ)-induced pulmonary fibrosis. Methods:In vivo, 18 male Wistar rats were randomly divided into three equal groups with 6 rats in each group, including control group, bleomycin-treated group (BLM), and BLM+ AngⅡ group. 28 days later, the lung tissues in all groups were harvested for the HE and Masson staining as well as the immunohistochemical (IHC) staining for Yap1. In vitro, the isolated fibroblasts were treated with 10(-7) mmol/L AngⅡor the AngⅡ-targeted inhibitor irbesartan for the scheduled time for mRNA and protein expressions of Yap1, PDZ-binding motif (TAZ), and collagen Ⅰusing PCR and Western blot, as well as the translocation test from the nucleus to the cytoplasm of Yap1 and TAZ...
July 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28733707/angiotensin-ii-type-1-receptor-blockers-inhibit-kat-ii-activity-in-the-brain-its-possible-clinical-applications
#12
Izabela Zakrocka, Katarzyna M Targowska-Duda, Artur Wnorowski, Tomasz Kocki, Krzysztof Jóźwiak, Waldemar A Turski
Angiotensin II receptor blockers (ARBs) are one of the most frequently recommended antihypertensive drugs. Apart from their activity towards the circulatory system, ARBs also penetrate the blood-brain barrier and display neuroprotective effects. Kynurenic acid (KYNA) is an endogenous metabolite of tryptophan produced by kynurenine aminotransferase II (KAT II) in the brain. Antagonism towards all ionotropic glutamate (GLU) receptors is the main mechanism of KYNA action. An elevated brain level of KYNA is linked with memory impairment and psychotic symptoms...
July 21, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28713834/renoprotective-effect-of-the-shen-yan-fang-shuai-formula-by-inhibiting-tnf-%C3%AE-nf-%C3%AE%C2%BAb-signaling-pathway-in-diabetic-rats
#13
Jie Lv, Zhen Wang, Ying Wang, Weiwei Sun, Jingwei Zhou, Mengdi Wang, Wei Jing Liu, Yaoxian Wang
Diabetic kidney disease (DKD) is the leading cause of end-stage kidney disease, and satisfactory therapeutic strategies have not yet been established. The Shen-Yan-Fang-Shuai Formula (SYFSF) is a traditional Chinese formula composed of Astragali radix, Radixangelicae sinensis, Rheum officinale Baill, and four other herbs. It has been widely used as an effective treatment for DKD patients in China. However, little is known about the molecular mechanisms underlying SYFSF's renoprotection. In this study, we compared the protective effect of SYFSF to irbesartan on the histology and renal cells in type 2 DKD rat model and high-glucose (HG) cultured mesangial cells, respectively...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28692311/prospective-direct-comparison-of-antihypertensive-effect-and-safety-between-high-dose-amlodipine-or-indapamide-in-hypertensive-patients-uncontrolled-by-standard-doses-of-angiotensin-receptor-blockers-and-amlodipine
#14
Keisuke Okamura, Kazuyuki Shirai, Nao Totake, Tetsu Okuda, Hidenori Urata
OBJECTIVE: When hypertension is uncontrolled by routine treatment with an angiotensin II receptor blocker (ARB) and the calcium channel blocker amlodipine (5 mg), the dose of amlodipine can be increased or a diuretic can be added. We investigated the more effective option in a prospective multicenter open-label study. METHODS: Hypertensive patients were recruited if the target blood pressure (BP) in The Japanese Society of Hypertension 2009 guideline could not be achieved with standard-dose ARB therapy and amlodipine (5 mg)...
July 10, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28676030/heart-failure-with-preserved-ejection-fraction-a-dilemma-in-treatment-options
#15
Taylor Bramblett, Mohamed Teleb, Aymen Albaghdadi, Harsh Agrawal, Debabrata Mukherjee
Heart failure with preserved ejection fraction (HFpEF) makes up half of diagnosed heart failure cases and has similar outcomes compared to heart failure with reduced ejection fraction (HFrEF) but a discrepancy in knowledge and approach to treatment. HFpEF is diagnosed using the following criteria: symptoms, preserved ejection fraction (greater than 50%), and evidence of abnormal left ventricular filling or relaxation, or diastolic distensibility or stiffness. Studies conducted to examine the efficacy of angiotensin receptor blockers (irbesartan and candesartan), thiazide diuretics (chlorthalidone), and angiotensin converting enzyme inhibitors (perindopril) in the treatment of HFpEF, showed moderate efficacy but no clear benefit...
July 3, 2017: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28670240/telmisartan-induced-sprue-like-enteropathy-a-case-report-and-a-review-of-patients-using-non-olmesartan-angiotensin-receptor-blockers
#16
Harshal Surendra Mandavdhare, Vishal Sharma, Kaushal K Prasad, Amit Kumar, Manish Rathi, Surinder S Rana
Recent studies have identified sprue-like illness associated with the use of the antihypertensive agent olmesartan medoxomil. However, whether this condition is specific to the use of olmesartan or is associated with the use of drugs belonging to the class of "sartans" remains to be clarified. A 45-year-old woman with chronic kidney disease along with hypothyroidism and hypertension presented with chronic diarrhea and significant weight loss. Endoscopy of the upper gastrointestinal tract showed scalloping and grooving of the duodenum, and histopathological examination showed subtotal villous atrophy...
July 2017: Intestinal Research
https://www.readbyqxmd.com/read/28669009/neuroprotective-effects-of-at1-receptor-antagonists-after-experimental-ischemic-stroke-what-is-important
#17
Juraj Culman, Toni Jacob, Sven O Schuster, Kjell Brolund-Spaether, Leonie Brolund, Ingolf Cascorbi, Yi Zhao, Peter Gohlke
The present study conducted in rats defines the requirements for neuroprotective effects of systemically administered AT1 receptor blockers (ARBs) in acute ischaemic stroke. The inhibition of central effects to angiotensin II (ANG II) after intravenous (i.v.) treatment with candesartan (0.3 and 3 mg/kg) or irbesartan and losartan (3 and 30 mg/kg) was employed to study the penetration of these ARBs across the blood-brain barrier. Verapamil and probenecid were used to assess the role of the transporters, P-glycoprotein and the multidrug resistance-related protein 2, in the entry of losartan and irbesartan into the brain...
July 2, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28618426/renoprotective-effect-of-angiotensin-converting-enzyme-inhibitors-and-angiotensin-ii-receptor-blockers-in-diabetic-patients-with-proteinuria
#18
Feng-Yi Hsu, Fang-Ju Lin, Huang-Tz Ou, Shih-Hui Huang, Chi-Chuan Wang
BACKGROUND/AIMS: Limited evidence exists on the choice of angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs) in diabetic patients with nephropathy. We aim to assess the renal effectiveness and safety of these drugs among diabetic nephropathy patients. METHODS: This retrospective cohort study was conducted with diabetic nephropathy patients who initiated ACEI or ARB monotherapy. The primary outcome was a composite of end stage of renal disease and renal transplantation, and the secondary outcome was all-cause mortality...
2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28613098/combined-treatment-of-irbesartan-and-diltiazem-ameliorates-endothelium-dependent-vasodilatation-in-hypertensives
#19
Tingting Zhou, Xiaodong Huang, Xiaoqi Cai, Liangdi Xie
OBJECTIVE: Endothelial function is of prognostic importance for hypertensives. The aim of this study was to investigate the effects of irbesartan combined with diltiazem on the endothelium-dependent vasodilatation in essential hypertensive (EH) patients in China. METHODS: A total of 150 Chinese hypertensives aged from 40 to 80 years old were assigned into three groups: irbesartan treated(150 mg/d, n = 46), diltiazem treated (90 mg/d, n = 51), and combined therapy group (irbesartan 150 mg/d+ diltiazem 90 mg/d, n = 53)...
June 14, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28452039/erratum-to-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
#20
Stefano Omboni, Ettore Malacco, Claudio Napoli, Pietro Amedeo Modesti, Athanasios Manolis, Gianfranco Parati, Enrico Agabiti-Rosei, Claudio Borghi
No abstract text is available yet for this article.
June 2017: Advances in Therapy
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