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https://www.readbyqxmd.com/read/27915141/a-review-of-the-occurrence-of-pharmaceuticals-and-personal-care-products-in-indian-water-bodies
#1
REVIEW
Keshava Balakrishna, Amlan Rath, Yerabham Praveenkumarreddy, Keerthi Siri Guruge, Bikram Subedi
Little information exists on the occurrence and the ultimate fate of pharmaceuticals in the water bodies in India despite being one of the world leaders in pharmaceutical production and consumption. This paper has reviewed 19 published reports of pharmaceutical occurrence in the aquatic environment in India [conventional activated sludge wastewater treatment plants (WTPs), hospital WTPs, rivers, and groundwater]. Carbamazepine (antipsychoactive), atenolol (antihypertensive), triclocarban and triclosan (antimicrobials), trimethoprim and sulfamethoxazole (antibacterials), ibuprofen and acetaminophen (analgesics), and caffeine (stimulant) are the most commonly detected at higher concentrations in Indian WTPs that treat predominantly the domestic sewage...
December 1, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27913078/pulmonary-artery-dissection-following-balloon-valvuloplasty-in-a-dog-with-pulmonic-stenosis
#2
K A Grint, H B Kellihan
A 3-month-old, 9.9 kg, male pit bull cross was referred for evaluation of collapse. A left basilar systolic heart murmur graded V/VI and a grade IV/VI right basilar systolic heart murmur were ausculted. Echocardiography showed severe pulmonic stenosis characterized by annular hypoplasia, leaflet thickening, and leaflet fusion. After 1 month of atenolol therapy, a pulmonic valve balloon valvuloplasty procedure was performed, and the intra-operative right ventricular pressure was reduced by 43%. Echocardiography, performed the following day, showed apparent rupture of a pulmonary valve leaflet and a membranous structure within the pulmonary artery consistent with a dissecting membrane...
November 30, 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27871747/impact-of-external-carbon-dose-on-the-removal-of-micropollutants-using-methanol-and-ethanol-in-post-denitrifying-moving-bed-biofilm-reactors
#3
Elena Torresi, Mònica Escolà Casas, Fabio Polesel, Benedek G Plósz, Magnus Christensson, Kai Bester
Addition of external carbon sources to post-denitrification systems is frequently used in wastewater treatment plants to enhance nitrate removal. However, little is known about the fate of micropollutants in post-denitrification systems and the influence of external carbon dosing on their removal. In this study, we assessed the effects of two different types and availability of commonly used carbon sources -methanol and ethanol- on the removal of micropollutants in biofilm systems. Two laboratory-scale moving bed biofilm reactors (MBBRs), containing AnoxKaldnes K1 carriers with acclimated biofilm from full-scale systems, were operated in continuous-flow using wastewater dosed with methanol and ethanol, respectively...
October 26, 2016: Water Research
https://www.readbyqxmd.com/read/27862262/different-effects-of-selective-%C3%AE-1-adrenoceptor-antagonists-nebivolol-or-atenolol-in-acetaminophen-induced-heptatotoxicity-of-rats
#4
Remon R Rofaeil, Maha Yehia Kamel, Walaa Yehia Abdelzaher
Acetaminophen (APAP) overdose is a common cause of acute liver failure and beta blockers are commonly used drugs in clinical practice. This study aims to evaluate the effect of two different beta blockers agents as nebivolol and atenolol against APAP-induced hepatotoxicity. Male wistar rats were treated with APAP (2 g/kg/day, p.o.) to induce hepatotoxicity. Our results showed that nebivolol and atenolol reduced heart rate and blood pressure. Nebivolol (5 mg/kg /day, p.o.) for 14 days has a hepatoprotective effect shown by significant decrease in hepatic injury parameters (serum AST and ALT) with significant suppression of hepatic malondialdehyde (MDA) and nitric oxide (NO) which were elevated with APAP administration...
November 14, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27857521/global-chemical-reactivity-parameters-for-several-chiral-beta-blockers-from-the-density-functional-theory-viewpoint
#5
Mona Maria Talmaciu, Ede Bodoki, Radu Oprean
BACKGROUND AND AIM: Beta-adrenergic antagonists have been established as first line treatment in the medical management of hypertension, acute coronary syndrome and other cardiovascular diseases, as well as for the prevention of initial episodes of gastrointestinal bleeding in patients with cirrhosis and esophageal varices, glaucoma, and have recently become the main form of treatment of infantile hemangiomas. The aim of the present study is to calculate for 14 beta-blockers several quantum chemical descriptors in order to interpret various molecular properties such as electronic structure, conformation, reactivity, in the interest of determining how such descriptors could have an impact on our understanding of the experimental observations and describing various aspects of chemical binding of beta-blockers in terms of these descriptors...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27787528/the-active-modulation-of-drug-release-by-an-ionic-field-effect-transistor-for-an-ultra-low-power-implantable-nanofluidic-system
#6
Giacomo Bruno, Giancarlo Canavese, Xuewu Liu, Carly S Filgueira, Adriano Sacco, Danilo Demarchi, Mauro Ferrari, Alessandro Grattoni
We report an electro-nanofluidic membrane for tunable, ultra-low power drug delivery employing an ionic field effect transistor. Therapeutic release from a drug reservoir was successfully modulated, with high energy efficiency, by actively adjusting the surface charge of slit-nanochannels 50, 110, and 160 nm in size, by the polarization of a buried gate electrode and the consequent variation of the electrical double layer in the nanochannel. We demonstrated control over the transport of ionic species, including two relevant hypertension drugs, atenolol and perindopril, that could benefit from such modulation...
October 27, 2016: Nanoscale
https://www.readbyqxmd.com/read/27758931/impact-of-substrate-dependent-inhibition-on-renal-organic-cation-transporters-hoct2-and-hmate1-2-k-mediated-drug-transport-and-intracellular-accumulation
#7
Jia Yin, Haichuan Duan, Joanne Wang
Renal transporter-mediated drug-drug interactions (DDIs) are of significant clinical concerns as they can adversely impact drug disposition, efficacy and toxicity. Emerging evidence suggests that human renal organic cation transporter 2 (hOCT2) and multidrug and toxin extrusion proteins 1 and 2-K (hMATE1/2-K) exhibit substrate-dependent inhibition but the impact on renal drug secretion and intracellular accumulation is unknown. Using metformin and atenolol as the probe substrates, we found that the classic inhibitors (e...
October 6, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27754213/os-31-05-the-importance-of-inter-individual-blood-pressure-variability-on-the-incidence-of-recurrent-stroke-a-post-hoc-analysis-of-ascot-and-allhat
#8
Sun Uck Kwon, Dalia Wajsbrot, Bum Joon Kim, Ja-Seong Koo, Jong Moo Park, Barrett Jeffers
OBJECTIVE: To evaluate differences in blood pressure variability (BPV) between patients who experience a recurrent (secondary) stroke or transient ischemic attack (TIA) compared with patients who do not have recurrent stroke. DESIGN AND METHOD: Data were extracted from the ALLHAT and ASCOT-BPLA databases. BPV was defined as the within-subject standard deviation of systolic BP measurements across visits from 12-weeks (or 3-months [84 days]) onwards. BPV was analyzed using a generalized linear model with terms for treatment, prior stroke, interaction between treatment group and prior stroke, and baseline systolic BP...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27750166/mass-loading-and-removal-of-pharmaceuticals-and-personal-care-products-including-psychoactives-antihypertensives-and-antibiotics-in-two-sewage-treatment-plants-in-southern-india
#9
Bikram Subedi, Keshava Balakrishna, Derrick Ian Joshua, Kurunthachalam Kannan
Environmental contamination by pharmaceuticals and personal care products (PPCPs) is barely studied in India despite being one of the largest global producers and consumers of pharmaceuticals. In this study, 29 pharmaceuticals and six metabolites were determined in sewage treatment plants (STPs) in Udupi (STPU: population served ∼150,000) and Mangalore (STPM: population served ∼450,000); the measured mean concentrations ranged from 12 to 61,000 ng/L and 5.0 to 31,000 ng/L, respectively. Atorvastatin (the most prescribed antihypercholesterolemic in India), mefenamic acid, and paraxanthine were found for the first time in wastewater in India at the mean concentrations of 395 ng/L, 1100 ng/L, and 13,000 ng/L, respectively...
October 14, 2016: Chemosphere
https://www.readbyqxmd.com/read/27728602/a-case-of-amlodipine-and-atenolol-combination-drug-overdosage
#10
Mohammed Suhail K, Shaikh Mohammed Aslam S, Swati Hegde
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27728376/a-comparative-study-of-nebivolol-and-s-atenolol-on-blood-pressure-and-heart-rate-on-essential-hypertensive-patients
#11
P K Agrawal, Vikash Kumar, A Kumar, S Prasad
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27720763/hemodynamic-responses-to-lachesis-muta-south-american-bushmaster-snake-venom-in-anesthetized-rats
#12
Lourdes Dias, Mariana A P Rodrigues, André L Rennó, Alessandra Stroka, Bruna R Inoue, Patrícia C Panunto, Anibal R Melgarejo, Stephen Hyslop
In this work, we examined the hemodynamic responses to Lachesis muta (South American bushmaster) venom in anesthetized male Wistar rats. Venom (1.5 mg/kg, i.v.) caused immediate hypotension that was followed by a gradual return towards baseline over 60 min; there were no significant changes in heart rate, ECG parameters and respiratory rate. A higher dose (3 mg/kg, i.v.) caused sustained hypotension, variable bradycardia, respiratory depression and fluctuations in ECG; death occurred within 10-60 min. Venom injected intramuscularly (15 mg/kg) produced a smaller decrease in blood pressure that was more persistent than with 1...
October 5, 2016: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/27716772/the-beta-1-receptor-blocker-nebivolol-elicits-dilation-of-cerebral-arteries-by-reducing-smooth-muscle-ca2-i
#13
Peter Cseplo, Zoltan Vamos, Ivan Ivic, Orsolya Torok, Attila Toth, Akos Koller
RATIONALE: Nebivolol is known to have beta-1 blocker activity, but it was also suggested that it elicits relaxation of the peripheral arteries in part via release of nitric oxide (NO). However, the effect of nebivolol on the vasomotor tone of cerebral arteries is still unclear. OBJECTIVE: To assess the effects of nebivolol on the diameter of isolated rat basilar arteries (BA) in control, in the presence of inhibitors of vasomotor signaling pathways of know action and hemolysed blood...
2016: PloS One
https://www.readbyqxmd.com/read/27716064/changes-in-selected-metabolic-parameters-in-patients-over-65-receiving-hydrochlorothiazide-plus-amiloride-atenolol-or-placebo-in-the-mrc-elderly-trial
#14
Damian J Damian, Roseanne McNamee, Matthew Carr
BACKGROUND: Treatment of hypertension reduces incidence of stroke, myocardial infarction and heart failure perhaps partly by controlling different metabolic parameters. There is limited information regarding the changes in potassium, sodium, weight, cholesterol and glucose levels in patients using anti-hypertensives. This study aimed to determine changes in potassium, sodium, glucose, cholesterol, weight, urea and urate levels in patients using anti-hypertensives. Furthermore, to describe these changes and differences between the atenolol, hydrochlorothiazide plus amiloride and placebo arms of the Medical Research Council (MRC) elderly randomised controlled trial...
October 4, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27714779/pharmacological-mechanisms-underlying-the-cardiovascular-effects-of-the-bath-salt-constituent-3-4-methylenedioxypyrovalerone-mdpv
#15
Charles W Schindler, Eric B Thorndike, Masaki Suzuki, Kenner C Rice, Michael H Baumann
BACKGROUND AND PURPOSE: 3,4-Methylenedioxypyrovalerone (MDPV) is a synthetic cathinone with stimulatory cardiovascular effects that can lead to serious medical complications. Here, we examined the pharmacological mechanisms underlying these cardiovascular actions of MDPV in conscious rats. EXPERIMENTAL APPROACH: Male Sprague-Dawley rats had telemetry transmitters surgically implanted for the measurement of BP and heart rate (HR). On test days, rats were placed individually in standard isolation cubicles...
December 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27710806/sleep-related-changes-in-cardiovascular-autonomic-regulation-in-left-coronary-artery-ligation-rats-neural-mechanism-facilitating-arrhythmia-after-myocardial-infarction
#16
Wei-Lun Lin, Li-Wei Lo, Hau-Ruey Chen, Chun-Ting Lai, Shinya Yamada, Shin-Huei Liu, Yu-Hui Chou, Shih-Ann Chen, Yun-Ching Fu, Terry B J Kuo
BACKGROUND: Autonomic imbalance with increased sympathetic and decreased parasympathetic activities is observed in patients after myocardial infarction (MI). We aimed to investigate sleep-related changed in autonomic regulation in left coronary artery (LCA) ligation rats. METHODS: Wireless transmission of polysomnographic recording was performed in sham and LCA ligation male rats during normal daytime sleep with and without atenolol treatment. Spectral analyses of the electroencephalogram (EEG) and electromyogram (EMG) were evaluated to define active waking (AW), quiet and paradoxical sleeps (QS, PS)...
September 30, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27710139/higher-pulse-pressure-stroke-volume-index-is-associated-with-impaired-outcome-in-hypertensive-patients-with-left-ventricular-hypertrophy-the-life-study
#17
Costantino Mancusi, Eva Gerdts, Giovanni de Simone, Helga Midtbø, Mai Tone Lønnebakken, Kurt Boman, Kristian Wachtell, Björn Dahlöf, Richard B Devereux
We tested the prognostic impact of a marker of arterial stiffness, pulse pressure/stroke volume index (PP/SVi) in patients with hypertension and left ventricular (LV) hypertrophy. We used data from 866 patients randomized to losartan or atenolol-based antihypertensive treatment, over a median of 4.8 years, in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) study. The association of PP/SVi with outcomes was tested in Cox regression analyses and reported as hazard ratio (HR) and 95% confidence intervals (CI)...
October 6, 2016: Blood Pressure
https://www.readbyqxmd.com/read/27697595/impact-of-feed-counterion-addition-and-cyclone-type-on-aerodynamic-behavior-of-alginic-atenolol-microparticles-produced-by-spray-drying
#18
Nazareth Eliana Ceschan, Verónica Bucalá, María Verónica Ramírez-Rigo, Hugh David Charles Smyth
The inhalatory route has emerged as an interesting non-invasive alternative for drug delivery. This allows both pulmonary (local) and systemic treatments (via alveolar absorption). Further advantages in terms of stability, dose and patient preference have often lead researchers to focus on dry powder inhaler delivery systems. Atenolol is an antihypertensive drug with low oral bioavailability and gastrointestinal side effects. Because atenolol possesses adequate permeation across human epithelial membranes, it has been proposed as a good candidate for inhalatory administration...
December 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27681105/influence-of-volumetric-reduction-factor-during-ozonation-of-nanofiltration-concentrates-for-wastewater-reuse
#19
Antonin Azaïs, Julie Mendret, Eddy Petit, Stephan Brosillon
Global population growth induces increased threat on drinking water resources. One way to address this environmental issue is to reuse water from wastewater treatment plant. The presence of pathogenic microorganisms and potentially toxic organic micropollutants does not allow a direct reuse of urban effluents. Membrane processes such reverse osmosis (RO) or nanofiltration (NF) can be considered to effectively eliminate these pollutants. The integration of membrane processes involves the production of concentrated retentates which require being disposed...
December 2016: Chemosphere
https://www.readbyqxmd.com/read/27680753/modulation-of-the-transducer-function-of-na-k-atpase-new-mechanism-of-heart-remodeling
#20
Ekaterina V Lopatina, Anna V Kipenko, Natalia A Pasatetskaya, Valentina A Penniyaynen, Boris V Krylov
Endogenous digitalis-like factors were found in the mammalian and human blood. It was the starting point for the elucidation of the new non-pumping function of the Na(+),K(+)-ATPase. It was previously well known that Na(+),K(+)-ATPase is a pharmacological target receptor for cardiac glycosides (J.C. Skou. 1957. Biochim. Biophys. Acta, 23: 394-401). We have investigated the trophotropic effects of such agents as ouabain, epinephrine, norepinephrine, atenolol, and comenic acid using the organotypic tissue culture combined with the reconstruction of optical cross sections and confocal microscopy...
October 2016: Canadian Journal of Physiology and Pharmacology
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