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https://www.readbyqxmd.com/read/28225482/a-case-report-of-posterior-reversible-encephalopathy-syndrome-in-a-patient-receiving-gemcitabine-and-cisplatin
#1
Hannah Cherniawsky, Neesha Merchant, Micheal Sawyer, Maria Ho
RATIONALE: Posterior reversible encephalopathy syndrome (PRES) is a subacute syndrome causing characteristic neurologic and radiologic findings. PRES is predominantly caused by malignant hypertension though it has been associated with immunosuppressive treatments such as chemotherapy. PATIENT CONCERNS: We describe a case of a 58 year old female who developed fluctuant level of consciousness, agitation. DIAGNOSIS: MRI findings were in keeping with posterior reversible encephalopathy syndrome following cycle 6 of palliative gemcitabine and cisplatin therapy for metastatic cholangiocarcinoma...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28224078/complications-of-anesthesia-during-electroconvulsive-therapy-due-to-undiagnosed-obstructive-sleep-apnea-a-case-study
#2
Georgia Trakada, Lemonia Velentza, Angeliki Konsta, Athanasia Pataka, Paul Zarogoulidis, Dimitris Dikeos
This is a case description of two patients with bipolar affective disorder, who presented complications, possibly due to underlying, undiagnosed obstructive sleep apnea syndrome (OSAS), during anesthesia for electroconvulsive therapy (ECT). The first patient, just after receiving the second ECT, developed tachypnea with spasm of the upper airways and severe oxygen desaturation He was intubated and transferred to the medical intensive care unit where he was extubated 15 h later. The second patient, just after the eighth ECT, developed tachycardia and severe hypertension...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28222860/highly-efficient-chiral-separation-of-amlodipine-enantiomers-via-triple-recognition-hollow-fiber-membrane-extraction
#3
Shenzhi Lai, Shaotan Tang, Jiaqi Xie, Changqun Cai, Xiaoming Chen, Chunyan Chen
In this study, a triple recognition chiral extraction process has been developed to separate (S)-amlodipine from racemic raw medicine, based on the combination of molecularly imprinted hollow fiber membrane and cross-flow biphasic recognition extraction. The chiral separation process was operated in a dismountable hollow fiber module coated with molecularly imprinted polymer, and the cross-flow extraction was applied with d-tartaric acid in feed phase and sulfobutyl ether-β-cyclodextrin in stripping phase...
February 14, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28204966/inhibition-of-the-renin-angiotensin-system-post-myocardial-infarction-prevents-inflammation-associated-acute-cardiac-rupture
#4
Xiao-Ming Gao, Alan Tsai, Annas Al-Sharea, Yidan Su, Shirley Moore, Li-Ping Han, Helen Kiriazis, Anthony M Dart, Andrew J Murphy, Xiao-Jun Du
PURPOSE: Inhibition of the renin-angiotensin system (RAS) is beneficial in patient management after myocardial infarction (MI). However, whether RAS inhibition also provides cardiac protection in the acute phase of MI is unclear. METHODS: Male 129sv mice underwent coronary artery occlusion to induce MI, followed by treatment with losartan (L, 20 and 60 mg/kg), perindopril (P, 2 and 6 mg/kg), amlodipine (20 mg/kg as a BP-lowering agent) or vehicle as control. Drug effects on hemodynamics were examined...
February 15, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28197287/effects-of-cilnidipine-on-heart-rate-and-uric-acid-metabolism-in-patients-with-essential-hypertension
#5
Arijit Das, Prakash Kumar, Abha Kumari, Satish Chandra, Manju Gari, Nidhi Singh, Debleena Dey
BACKGROUND: The relation between hypertension and hyperuricemia has been established by epidemiological studies. Calcium channel blockers are one of the first-line drugs for newly diagnosed patients with essential hypertension. Cilnidipine is a new calcium channel blocker acting by blocking both L- and N-type calcium channels. The aim of this study was to compare the effectiveness of amlodipine and cilnidipine in patients with essential hypertension and their effects on heart rate and serum uric acid levels...
October 2016: Cardiology Research
https://www.readbyqxmd.com/read/28193357/efficient-and-clean-pre-concentration-of-ultra-trace-calcium-channel-blockers-from-biological-matrices-via-a-hyphenated-procedure-of-two-sequential-dispersive-solid-liquid-phase-microextractions
#6
Maryam Hemmati, Maryam Rajabi, Alireza Asghari
In the present work, we propose a safe, simple, and relatively rapid procedure for the efficient clean-up and pre-concentration of ultra-trace calcium channel blockers (CCBs) from the human plasma and urine samples followed by high performance liquid chromatography-ultraviolet detection. The proposed sample preparation method is a combination of two microextraction methods termed as ultrasound-assisted dispersive micro solid-phase extraction coupled with air-agitated liquid-liquid microextraction based on solidification of a floating organic droplet (UA-dμSPE-AA-LLME-SFO)...
April 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28190578/quarter-dose-quadruple-combination-therapy-for-initial-treatment-of-hypertension-placebo-controlled-crossover-randomised-trial-and-systematic-review
#7
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)...
February 9, 2017: Lancet
https://www.readbyqxmd.com/read/28181192/single-pill-combination-of-perindopril-indapamide-amlodipine-in-patients-with-uncontrolled-hypertension-a-randomized-controlled-trial
#8
Sergey V Nedogoda, Vesna J Stojanov
INTRODUCTION: Patients with hypertension often require a combination of three antihypertensive agents to achieve blood pressure control, but very few single-pill triple combinations are available. The aim of this study was to determine whether a single-pill triple combination of perindopril, indapamide, and amlodipine was as effective as a dual-pill combination of perindopril/indapamide plus separate amlodipine at reducing blood pressure in patients with uncontrolled, essential hypertension...
February 8, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28168948/a-validated-hplc-method-for-simultaneous-determination-of-perindopril-arginine-amlodipine-and-indapamide-application-in-bulk-and-in-different-pharmaceutical-dosage-forms
#9
Ramzia I El-Bagary, Ehab F Elkady, Shereen Mowaka, Maria A Attallah
A simple, accurate, and precise LC method with a reversed stationary phase was developed and validated for the determination of perindopril (PER) arginine, amlodipine (AML), and indapamide (IND) alone and in binary mixtures (PER arginine is found in two dosage forms, i.e., with either AML or IND). Chromatographic separation was carried out on a BDS Hypersil<sup>®</sup> C18 column (100 × 3 mm, 5 μm). The mobile phase, consisting of 0.05 M potassium dihydrogen phosphate buffer (pH 2.6)-methanol(50 + 50, v/v), was pumped through the column whose temperature was maintained at 50°C at a flow rate of 0...
February 7, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28161159/early-treatment-with-losartan-effectively-ameliorates-hypertension-and-improves-vascular-remodeling-and-function-in-a-prehypertensive-rat-model
#10
De-Hua He, Jin-Xiu Lin, Liang-Min Zhang, Chang-Sheng Xu, Qiang Xie
AIMS: Pharmacological treatment of prehypertension may ameliorate hypertension and improve vascular structure and function. This study investigated 1) whether early treatment with either losartan or amlodipine at the onset of prehypertension can prevent hypertension and 2) whether losartan and amlodipine equally improve vascular remodeling and function in a rat model of hypertension. MATERIALS AND METHODS: Stroke-prone spontaneously hypertensive (SHRSP) rats were administered losartan, amlodipine or saline for 6 or 16weeks at the onset of prehypertension...
February 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28160258/effect-of-microneedles-on-transdermal-permeation-enhancement-of-amlodipine
#11
Buchi N Nalluri, Chandrateja Uppuluri, Jyothirmayee Devineni, Atul Nayak, Karthik J Nair, Benjamin R Whiteside, Diganta B Das
The present study aimed to investigate the effect of microneedle (MN) geometry parameters like length, density, shape and type on transdermal permeation enhancement of amlodipine (AMLO). Two types of MN devices viz. AdminPatch® arrays (ADM) (0.6, 1.2 and 1.5 mm lengths) and laboratory-fabricated polymeric MNs (PM) of 0.6 mm length were employed. In the case of PMs, arrays were applied thrice at different places within a 1.77-cm(2) skin area (PM-3) to maintain the MN density closer to 0.6 mm ADM. Scaling analyses were done using dimensionless parameters like concentration of AMLO (Ct/Cs), thickness (h/L) and surface area of the skin (Sa/L(2))...
February 3, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28154306/taste-masking-effect-of-chlorogenic-acid-cga-on-bitter-drugs-evaluated-by-taste-sensor-and-surface-plasmon-resonance-on-the-basis-of-cga-drug-interactions
#12
Sayuko Shiraishi, Tamami Haraguchi, Saki Nakamura, Dahong Li, Honami Kojima, Miyako Yoshida, Takahiro Uchida
The purpose of this study was to evaluate the taste-masking effects of chlorogenic acid (CGA) on bitter drugs using taste sensor measurements and surface plasmon resonance (SPR) analysis of CGA-drug interactions. Six different bitter drugs were used: amlodipine besylate (AMD), diphenhydramine hydrochloride (DPH), donepezil hydrochloride (DNP), rebamipide (RBM), diclofenac sodium (DCF) and etodolac (ETD). Taste sensor outputs were significantly inhibited by the addition of CGA to all drugs. The inhibition ratio of the taste sensor output decreased in the following order DPH>DNP>AMD≈DCF≈RBM≈ETD...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28152215/comparison-of-generic-to-brand-switchback-rates-between-generic-and-authorized-generic-drugs
#13
Richard A Hansen, Jingjing Qian, Richard Berg, James Linneman, Enrique Seoane-Vazquez, Sarah K Dutcher, Saeid Raofi, C David Page, Peggy Peissig
STUDY OBJECTIVE: Generic drugs contain identical active ingredients as their corresponding brand drugs and are pharmaceutically equivalent and bioequivalent, whereas authorized generic drugs contain both identical active and inactive ingredients as their corresponding brand drugs but are marketed as generics. The objective of this study was to compare generic-to-brand switchback rates between generic and authorized generic drugs. DESIGN: Retrospective cohort study...
February 2, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28150140/impact-of-statin-therapy-on-the-blood-pressure-lowering-efficacy-of-a-single-pill-perindopril-amlodipine-combination-in-hypertensive-patients-with-hypercholesterolemia
#14
Yuriy Sirenko, Ganna Radchenko
INTRODUCTION: Several lines of research indicate that statins can lower blood pressure (BP) independently of their lipid-lowering effects when used as monotherapy and in combination with antihypertensive agents. AIM: This short-term, open-label study examined whether statin therapy had a synergistic effect on the BP-lowering efficacy of perindopril/amlodipine in a subgroup of patients in the PERSPECTIVA study with concomitant hypertension and hypercholesterolemia, with or without statin at baseline...
February 2, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28118578/novel-pure-component-contribution-algorithm-pcca-and-uhplc-methods-for-separation-and-quantification-of-amlodipine-valsartan-and-hydrochlorothiazide-in-ternary-mixture
#15
Shereen Mowaka, Maha A Hegazy, Hayam M Lotfy, Ekram H Mohamed
Two accurate and sensitive methods were developed and validated for the simultaneous determination of amlodipine (AML),valsartan (VAL), and hydrochlorothiazide (HCT) in their ternary mixture. The first method is a novel simple algorithm capable of extracting the contribution of each component from a mixture signal in which the components are partially or completely overlapped. It is based on the use of a coded function that eliminates the signal of interfering components using mean centering as a processing tool...
December 21, 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/28118570/conductive-polymeric-ionic-liquid-fe3o4-nanocomposite-as-an-efficient-catalyst-for-the-voltammetric-determination-of-amlodipine-besylate
#16
Fariba Fathirad, Ali Mostafavi, Daryoush Afzali
A novel conductive polymeric ionic liquid (IL)-Fe<sub>3</sub>O<sub>4</sub> nanocomposite (represented as PIL-Fe<sub>3</sub>O<sub>4</sub>) based on inorganic-organic hybrid material was synthesized using two different methods. Nuclear magnetic resonance, Fourier transform infrared, X-ray diffraction, and field emission scanning electron microscopy characterized the structures of IL, Fe<sub>3</sub>O<sub>4</sub> nanoparticles, and PIL-Fe<sub>3</sub>O<sub>4</sub>...
December 20, 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/28104972/utilization-study-of-antihypertensives-in-a-south-indian-tertiary-care-teaching-hospital-and-adherence-to-standard-treatment-guidelines
#17
Supratim Datta
AIM: Hypertension represents a major health problem primarily because of its role in contributing to the initiation and progression of major cardiovascular diseases. Concerns pertaining to hypertension and its sequelae can be substantially addressed and consequent burden of disease reduced by early detection and appropriate therapy of elevated blood pressure. This cross-sectional observational study aims at analyzing the utilization pattern of antihypertensives used for the treatment of hypertension at a tertiary care hospital in perspective of standard treatment guidelines...
December 2016: Journal of Basic and Clinical Pharmacy
https://www.readbyqxmd.com/read/28104105/effects-of-amlodipine-and-valsartan-on-blood-pressure-variability-and-pulse-wave-velocity-in-hypertensive-patients
#18
Rufeng Shi, Kai Liu, Di Shi, Qi Liu, Xiaoping Chen
OBJECTIVES: Antihypertensive therapy is effective to control blood pressure (BP) and to prevent cardiovascular events, but the further treatment strategies for patients who cannot achieve goal BP with low-dose monotherapy is still under dispute. Our study investigates the effects of high-dose amlodipine and valsartan and their low-dose combination on blood pressure variability (BPV) and pulse wave velocity (PWV) to provide references for clinical medication. MATERIALS AND METHODS: This study was a prospective, randomized, parallel, case-controlled trial performed in a medical center...
January 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28103649/amlodipine-an-l-type-calcium-channel-blocker-protects-against-chlorpromazine-induced-neurobehavioural-deficits-in-mice
#19
Oluwafemi E Kale, Olufunsho Awodele, Temitope F Ogundare, Martins Ekor
This study investigated the modulatory and chemopreventive benefit of amlodipine (AML), a dihydropyridine calcium channel antagonist, against neurobehavioural abnormalities (NAs) associated with chlorpromazine (CPZ) toxicity in mice. Adult mice were divided into five groups of six animals/group. Group 1 (control) was administered saline (10 mL/kg i.p.). Group 2 received CPZ (2 mg/kg i.p.). Groups 3 and 4 received bromocriptine (BMC, 2.5 mg/kg s.c.) and AML (1 mg/kg s.c.), respectively, while group 5 received their combination...
January 19, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28100922/the-effects-of-missed-doses-of-amlodipine-and-losartan-on-blood-pressure-in-older-hypertensive-patients
#20
Peter W de Leeuw, Robert Fagard, Abraham A Kroon
This randomized, double-blind, parallel-group, multicenter study compared the efficacy of amlodipine and losartan in an older hypertensive population, focusing on therapeutic coverage in the case of missed doses. Following a 4-week, single-blind, placebo washout period, 211 patients were randomly assigned to receive either 5 mg of amlodipine once daily or 50 mg of losartan once daily. Doses were doubled after 6 weeks of treatment if the diastolic blood pressure exceeded 90 mm Hg. After the 12-week treatment period, patients received the placebo for 2 days (drug holiday) to simulate two missed doses of antihypertensive medication...
January 19, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
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