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https://www.readbyqxmd.com/read/28642308/predicting-risk-of-undiagnosed-copd-development-and-validation-of-the-targetcopd-score
#1
Shamil Haroon, Peymane Adab, Richard D Riley, David Fitzmaurice, Rachel E Jordan
Chronic obstructive pulmonary disease (COPD) is greatly underdiagnosed worldwide and more efficient methods of case-finding are required. We developed and externally validated a risk score to identify undiagnosed COPD using primary care records.We conducted a retrospective cohort analysis of a pragmatic cluster randomised controlled case-finding trial in the West Midlands, UK. Participants aged 40-79 years with no prior diagnosis of COPD received a postal or opportunistic screening questionnaire. Those reporting chronic respiratory symptoms were assessed with spirometry...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28628545/salbutamol-therapy-for-food-impaction-in-eosinophilic-oesophagitis
#2
Jorge Amil Dias, Sofia Fernandes, Susana Corujeira, Eunice Trindade, Marta Tavares, Simon Murch
No abstract text is available yet for this article.
June 16, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28628021/correlation-between-spirometry-dates-and-special-allergen-specific-ige-in-patients-with-bronchial-asthma-in-west-georgia
#3
R Sepiashvili, M Chikhladze, D Khachapuridze, S Gamkrelidze
The study aimed to establish correlation between airway obstruction and specific IgE specificity, managing future treatment in the patients with bronchial asthma, among the population of west Georgia. In the study have been involved 56 patients (among them 24 males and 32 females) of different ages, with diagnostic bronchial asthma (according to GINA recommendation). On the ground of the aim the study included the following steps of allegro-diagnostics: I step - Computerized spirometry by apparatus ,,SPIROLAB 3"...
May 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28627376/inhaled-salbutamol-dose-delivered-by-jet-nebulizer-vibrating-mesh-nebulizer-and-metered-dose-inhaler-with-spacer-during-invasive-mechanical-ventilation
#4
Muhammad E ElHansy, Marina Emad, Assem Fouad Mohamed El Essawy, Mohamed Bakry Al-Kholy, Maha M Abdelrahman, Amira S A Said, Raghda R S Hussein, Mohamed E Abdelrahim
BACKGROUND: Patient receiving invasive mechanical ventilation (IMV) may benefit from medical aerosol, but guidance on dosing with different aerosol devices is limited to in-vitro studies. The study was designed to compare aerosol delivery with five different types of aerosol generators during IMV. METHOD: In randomized design, 60 (30 female) mechanically ventilated chronic obstructive pulmonary disease (COPD) patients were assigned to one of 5 groups. Groups 1-4 received 5000 μg salbutamol using Aerogen Pro (PRO), Aerogen Solo (SOLO), NIVO vibrating mesh and jet nebulizers (JN), respectively, while group 5 received 800 μg (8 puffs) of salbutamol via metered dose inhaler with AeroChamber-MV (MDI-AC)...
June 13, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28619456/how-does-secondary-processing-affect-the-physicochemical-properties-of-inhalable-salbutamol-sulphate-particles-a-temporal-investigation
#5
Joana T Pinto, Snezana Radivojev, Sarah Zellnitz, Eva Roblegg, Amrit Paudel
As pulmonary drug delivery is extended from low doses to high doses, physicochemical characteristics of the active pharmaceutical ingredient gain importance in the development of dry powder inhalers. Therefore, the present work aims to understand the impact of distinct engineering techniques on the process induced physicochemical characteristics of salbutamol sulphate particles over time. The particle engineering techniques chosen were jet-milling and spray-drying, two well used processes in the production of predominately crystalline and amorphous inhalable particles, respectively...
June 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28606525/inhaled-hyaluronic-acid-microparticles-extended-pulmonary-retention-and-suppressed-systemic-exposure-of-a-short-acting-bronchodilator
#6
Ying Li, Meihua Han, Tingting Liu, Dongmei Cun, Liang Fang, Mingshi Yang
The aim of this study was to investigate the feasibility of using hyaluronic acid (HA), a biomucoadhesive carbohydrate polymer to prolong the pulmonary retention and reduce the systemic exposure of inhaled medicine. Salbutamol sulphate (SAS), a model bronchodilator, was co-spray dried with HA into inhalable microparticles, which were subsequently characterized as spherical shape with wrinkled surface. The fine particle fraction of the microparticles tested by using the Next Generation Impactor was over 30% without the aid of any carrier, and the in vitro release of SAS lasted for 20h...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28589305/discriminating-ability-of-abbreviated-impactor-measurement-approach-aim-to-detect-changes-in-mass-median-aerodynamic-diameter-mmad-of-an-albuterol-salbutamol-pmdi-aerosol
#7
J David Christopher, Rajni B Patel, Jolyon P Mitchell, Terrence P Tougas, Adrian P Goodey, Jorge Quiroz, Patrik U Andersson, Svetlana Lyapustina
This article reports on results from a two-lab, multiple impactor experiment evaluating the abbreviated impactor measurement (AIM) concept, conducted by the Cascade Impaction Working Group of the International Pharmaceutical Aerosol Consortium on Regulation and Science (IPAC-RS). The goal of this experiment was to expand understanding of the performance of an AIM-type apparatus based on the Andersen eight-stage non-viable cascade impactor (ACI) for the assessment of inhalation aerosols and sprays, compared with the full-resolution version of that impactor described in the pharmacopeial compendia...
June 6, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28588970/modifying-the-interagency-emergency-health-kit-to-include-treatment-for-non-communicable-diseases-in-natural-disasters-and-complex-emergencies
#8
Marcello Tonelli, Natasha Wiebe, Brian Nadler, Ara Darzi, Shahnawaz Rasheed
The Interagency Emergency Health Kit (IEHK) provides a standard package of medicines and simple medical devices for aid agencies to use in emergencies such as disasters and armed conflicts. Despite the increasing burden of non-communicable diseases (NCDs) in such settings, the IEHK includes few drugs and devices for management of NCDs. Using published data to model the population burden of acute and chronic presentations of NCDs in emergency-prone regions, we estimated the quantity of medications and devices that should be included in the IEHK...
November 2016: BMJ Global Health
https://www.readbyqxmd.com/read/28573890/resorcinol-catechol-and-saligenin-based-bronchodilating-%C3%AE-2-agonists-as-inhibitors-of-human-cholinesterase-activity
#9
Anita Bosak, Anamarija Knežević, Ivana Gazić Smilović, Goran Šinko, Zrinka Kovarik
We investigated the influence of bronchodilating β2-agonists on the activity of human acetylcholinesterase (AChE) and usual, atypical and fluoride-resistant butyrylcholinesterase (BChE). We determined the inhibition potency of racemate and enantiomers of fenoterol as a resorcinol derivative, isoetharine and epinephrine as catechol derivatives and salbutamol and salmeterol as saligenin derivatives. All of the tested compounds reversibly inhibited cholinesterases with Ki constants ranging from 9.4 μM to 6...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28572124/the-association-between-chronic-airflow-obstruction-and-poverty-in-12-sites-of-the-multinational-bold-study
#10
John Townend, Cosetta Minelli, Kevin Mortimer, Daniel O Obaseki, Mohammed Al Ghobain, Hamid Cherkaski, Myriam Denguezli, Kirthi Gunesekera, Hasan Hafizi, Parvaiz A Koul, Li C Loh, Chakib Nejjari, Jaymini Patel, Talant Sooronbayev, Sonia A Buist, Peter G J Burney
Poverty is strongly associated with mortality from COPD, but little is known of its relation to airflow obstruction.In a cross-sectional study of adults aged ≥40 years from 12 sites (N=9255), participating in the Burden of Obstructive Lung Disease (BOLD) study, poverty was evaluated using a wealth score (0-10) based on household assets. Obstruction, measured as forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) (%) after administration of 200 μg salbutamol, and prevalence of FEV1/FVC<lower limit of normal were tested for association with poverty for each site, and the results were combined by meta-analysis...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28560037/instant-velocity-and-consistency-of-emitted-cloud-change-by-the-different-levels-of-canister-filling-with-metered-dose-inhalers-mdis-but-not-with-soft-mist-inhalers-smis-a%C3%A2-bench-study
#11
Roberto W Dal Negro, Pietro Longo, Orestepaolo Villanis Ziani, Luca Bonadiman, Paola Turco
BACKGROUND: Inhalation is the preferred route for respiratory drug delivery, but several factors contribute to the variability of the respirable dose fraction. Instant velocity and the dynamic characteristics of the droplet cloud represent crucial factors. Aim was to measure and compare the instant velocity and the consistency of emitted cloud from five different MDIs (A - Salbutamol sulphate 100mcg, GSK; B - Salbutamol sulphate 100mcg, Valeas; C - Salmeterol xinafoate/Fluticasone propionate 25/125mcg, GSK; D - Formoterol fumarate/Bechlomethasone propionate 6/100mcg, Chiesi; E - Formoterol fumarate/Fluticasone dipropionate 5/125mcg, Mundipharma) and one SMI (Tiotropium bromide 5mcg, Boehringer Ingelheim), at different distance from the nozzle and canister filling...
2017: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/28551402/free-breathing-functional-pulmonary-mri-response-to-bronchodilator-and-bronchoprovocation-in-severe-asthma
#12
Dante P I Capaldi, Khadija Sheikh, Rachel L Eddy, Fumin Guo, Sarah Svenningsen, Parameswaran Nair, David G McCormack, Grace Parraga
RATIONALE AND OBJECTIVES: Ventilation heterogeneity is a hallmark feature of asthma. Our objective was to evaluate ventilation heterogeneity in patients with severe asthma, both pre- and post-salbutamol, as well as post-methacholine (MCh) challenge using the lung clearance index, free-breathing pulmonary (1)H magnetic resonance imaging (FDMRI), and inhaled-gas MRI ventilation defect percent (VDP). MATERIALS AND METHODS: Sixteen severe asthmatics (49 ± 10 years) provided written informed consent to an ethics board-approved protocol...
May 24, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28549677/enhanced-expression-of-organic-cation-transporters-in-bronchial-epithelial-cell-layers-following-insults-associated-with-asthma-impact-on-salbutamol-transport
#13
M Mukherjee, E Cingolani, D I Pritchard, C Bosquillon
Increasing evidence suggests Organic Cation Transporters (OCT) might facilitate the absorption of inhaled bronchodilators, including salbutamol, across the lung epithelium. This is essentially scarred and inflamed in asthma. Accordingly, the impact of epithelial insults relevant to asthma on OCT expression and salbutamol transport was evaluated in air-liquid interfaced layers of the human broncho-epithelial cell line Calu-3. These were physically injured and allowed to recover for 48h or exposed to the pro-inflammatory stimulant lipopolysaccharide (LPS) for 48h and the aeroallergen house dust mite (HDM) for 8h twice over 48h...
May 23, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28544353/chiral-separation-of-12-pairs-of-enantiomers-by-capillary-electrophoresis-using-heptakis-2-3-diacetyl-6-sulfato-%C3%AE-cyclodextrin-as-the-chiral-selector-and-the-elucidation-of-the-chiral-recognition-mechanism-by-computational-methods
#14
Yaqi Yao, Peilu Song, Xiaoli Wen, Miaoduo Deng, Jian Wang, Xingjie Guo
Chiral separation of 12 pairs of basic analyte enantiomers including oxybutynin, bambuterol, tradinterol, clenbuterol, clorprenaline, terbutaline, tulobuterol, citalopram, phencynonate, fexofenadine, salbutamol and penehyclidine was conducted by capillary electrophoresis using a single-isomer anionic β-cyclodextrin derivative, heptakis-(2,3-diacetyl-6-sulfato)-β-cyclodextrin as the chiral selector. Parameters influencing separation were studied, including background electrolyte pH, heptakis-(2,3-diacetyl-6-sulfato)-β-cyclodextrin concentration, buffer concentration and separation voltage...
May 24, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28544041/marked-variability-observed-in-inpatient-management-of-bronchiolitis-in-three-finnish-hospitals
#15
Varpu Elenius, Eija Bergroth, Petri Koponen, Sami Remes, Pedro A Piedra, Janice A Espinola, Matti Korppi, Carlos A Camargo, Tuomas Jartti
AIM: Infants hospitalised for bronchiolitis undergo examinations and treatments not supported by current research evidence and we investigated practice variations with regard to Finnish children under the age of two. METHODS: This prospective, multi-centre cohort study was conducted in paediatric units in three university hospitals in Finland from 2008-2010. Hospital medical records were reviewed to collect data on clinical course, testing and treatment. Data were analysed separately for children meeting our strict definition of bronchiolitis, aged under 12 months without a history of wheezing, and a loose definition, aged 12-23 months or with a history of wheezing...
May 24, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28536796/development-and-evaluation-of-a-family-of-human-face-and-upper-airway-models-for-the-laboratory-testing-of-orally-inhaled-products
#16
Mark W Nagel, Jason A Suggett, Dominic P Coppolo, Jolyon P Mitchell
Many orally inhaled products are supplied with a facemask instead of a mouthpiece, enabling aerosolized medication to be transferred from the inhaler to the lungs when the user lacks the capability to use a mouthpiece. Until recently, laboratory evaluation of an orally inhaled product-facemask was frequently undertaken by removing the facemask, treating the facemask adapter as being equivalent to a mouthpiece. Measurements of delivered drug mass were therefore subject to bias arising from the absence of dead volume, had the facemask been present...
May 23, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28529073/real-life-acute-lung-function-changes-after-lumacaftor-ivacaftor-first-administration-in-pediatric-patients-with-cystic-fibrosis
#17
Aurélie Labaste, Camille Ohlmann, Catherine Mainguy, Virginie Jubin, Marie Perceval, Laurianne Coutier, Philippe Reix
The combination of lumacaftor and ivacaftor (LUM/IVA) has been reported to induce a mean acute absolute drop of -4.1% predicted forced expiratory volume in 1s (FEV1) after a unique administration in healthy subjects. The aim of the present study was to assess acute FEV1 changes after the first dose of LUM/IVA in CF patients. A total of 32 pediatric patients were included. Respiratory manifestations occurred in only 3 patients (9.4%), but FEV1 consistently decreased (-10.4±4.6%, range: -1.5; -21.8%). FEV1 only partially resumed after salbutamol inhalation...
May 18, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28528945/the-chemical-profile-and-pharmacodynamic-properties-of-extracellular-wollea-saccata-biopolymer
#18
Martina Šutovská, Michaela Kočmálová, Lenka Pappová, Soňa Fraňová, Andrej Chyba, Jiří Kopecký, Jaromír Lukavský, Vladislav Cepák, Peter Capek
Microalgae organisms are of interest for many biotechnology applications due to the production of a wide range of biologically active compounds. Incubation of Wollea saccata in a large scale afforded a mucilaginous, high molecular weight biopolymer composed of carbohydrate, protein and phenolic compounds. Sugar moiety was rich in hexoses (60%) and 6-deoxyhexoses (31%), while only 9% of pentoses was identified. Methylation analysis revealed about 40 types of methylated sugar derivatives, suggesting a very complex structure of Wollea biopolymer...
May 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28525334/influence-of-%C3%AE-2-and-%C3%AE-3-adrenoceptor-agonists-on-contractile-activity-of-the-porcine-myometrium-in-the-luteal-phase-and-the-first-days-of-pregnancy
#19
W Markiewicz, J J Jaroszewski
This study analysed the relaxant properties of salbutamol (β2-adrenoceptors agonist) and BRL 37344 (β3-adrenoceptors agonist) regarding the contractility of porcine myometrium on days 10-14 of the oestrous cycle (cyclic group; n = 10) and on days 3-5 of pregnancy (early pregnant group; n = 6). The activity of myometrial strips (tension, frequency and amplitude) was recorded under isometric conditions using force transducers. The contractility was assessed further following the administration of increasing concentrations of the agonists (10-9-10-4 M), both with and without β-adrenoceptor antagonists (butaxamine - a selective β2- adrenoceptor antagonist, propranolol- a non-selective β1- and β2-adrenoceptor antagonist and bupranolol - a non-selective β1-, β2- and β3-adrenoceptor antagonist) at a concentration of 10-4 M...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28510800/structural-modulation-of-gut-microbiota-in-bama-minipigs-in-response-to-treatment-with-a-growth-promoting-agent-salbutamol
#20
Chenyang Lu, Jun Zhou, Yanyan Li, Dijun Zhang, Zuzhong Wang, Ye Li, Lingzhi Cheong, Chundan Zhang, Xiurong Su
Even though salbutamol (SAL) had remarkable effects on the enhancement of growth rate and carcass composition in different livestock species such as cattle, pigs, sheep and poultry, it was banned as a growth promoter because of its adverse effects on health. However, the specific mechanism by which salbutamol enhances growth efficiency remains unknown. In this study, Bama pigs were randomly allocated to receive salbutamol (5 mg/kg) for 30 or 60 days and were compared with untreated pigs. Pigs treated with salbutamol demonstrated enhanced growth rates and carcass composition; however, they showed deterioration in blood biochemical indices and organ development...
May 16, 2017: Applied Microbiology and Biotechnology
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