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Aerosol therapy

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https://www.readbyqxmd.com/read/29138047/antibacterial-effect-and-dna-delivery-using-a-combination-of-an-arsonium-containing-lipophosphoramide-with-an-n-heterocyclic-carbene-silver-complex-potential-benefits-for-cystic-fibrosis-lung-gene-therapy
#1
Angélique Mottais, Mathieu Berchel, Yann Sibiril, Véronique Laurent, Deborah Gill, Stephen Hyde, Paul-Alain Jaffrès, Tristan Montier, Tony Le Gall
Cystic Fibrosis (CF), the most common chronic genetic disorder among the Caucasian population, is a life-threatening disease mainly due to respiratory failures resulting from chronic infections and inflammation. Although research in the pharmacological field has recently made significant progress, gene therapy still remains a promising strategy to cure CF, especially because it should be applicable to any patient whatever the mutation profile. Until now, little attention has been paid to bacterial lung infections with regard to gene delivery to the airways; yet, this could greatly impact on the success of gene therapy...
November 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29125064/pulmonary-aerosol-delivery-and-the-importance-of-growth-dynamics
#2
Allen E Haddrell, David Lewis, Tanya Church, Reinhard Vehring, Darragh Murnane, Jonathan P Reid
Aerosols are dynamic systems, responding to variations in the surrounding environmental conditions by changing in size, composition and phase. Although, widely used in inhalation therapies, details of the processes occurring on aerosol generation and during inhalation have received little attention. Instead, research has focused on improvements to the formulation of the drug prior to aerosolization and the resulting clinical efficacy of the treatment. Here, we highlight the processes that occur during aerosol generation and inhalation, affecting aerosol disposition when deposited and, potentially, impacting total and regional doses...
December 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/29109018/effect-of-mycobacterium-tuberculosis-infection-on-adipocyte-physiology
#3
Janeesh Plakkal Ayyappan, Christopher Vinnard, Selvakumar Subbian, Jyothi F Nagajyothi
Tuberculosis (TB) remains as a major threat to human health worldwide despite of the availability of standardized antibiotic therapy. One of the characteristic of pathogenic Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis is its ability to persist in the host in a dormant state and develop latent infection without clinical signs of active disease. However, the mechanisms involved in bacterial persistence and the establishment of latency is not well understood. Adipose tissue is emerging as an important niche that favors actively replicating as well as dormant Mtb during acute and latent infection...
November 8, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/29081108/-bservation-of-the-clinical-symptoms-of-pneumoconiosis-by-rock-salt-aerosol-therapy
#4
Y Wang, X C Liu, P Jiang
No abstract text is available yet for this article.
July 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29075107/a-pilot-clinical-trial-to-determine-the-safety-and-efficacy-of-aerosolized-hyaluronan-as-a-treatment-for-copd
#5
Jerome Cantor, Shuren Ma, Gerard Turino
A novel therapy for COPD involving the use of aerosolized hyaluronan (HA) was tested on a small cohort of COPD patients to determine both its safety and efficacy in reducing levels of desmosine and isodesmosine (DID), biomarkers for elastin degradation. In a 2-week, randomized, double-blind trial, 8 patients receiving 150 kDa HA (mean molecular weight) and 3 others given placebo did not show significant adverse effects with regard to spirometry, electrocardiograms, and hematological indices. Furthermore, measurements of DID in plasma from HA-treated patients indicated a progressive decrease over a 3-week period following initiation of treatment (r=-0...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29073215/toxoplasma-gondii-serine-protease-inhibitor-1-a-new-adjuvant-candidate-for-asthma-therapy
#6
Ariadna S Soto, Ignacio M Fenoy, Vanesa R Sanchez, Florencia March, Matías D Perrone Sibilia, María de Los Angeles Aldirico, Mariano S Picchio, Nadia Arcon, Patricio L Acosta, Fernando P Polack, Valentina Martin, Alejandra Goldman
Serine-proteases are important players in the pathogenesis of asthma, promoting inflammation and tissue remodeling. It's also known that many serine protease inhibitors display immunomodulatory properties. TgPI-1 is a Toxoplasma gondii protein that exhibits broad spectrum inhibitory activity against serine proteases. In view of the increased prevalence of atopic disorders and the need to develop new treatment strategies we sought to investigate the potential of TgPI-1 for treating respiratory allergies. For this purpose, we developed a therapeutic experimental model...
2017: PloS One
https://www.readbyqxmd.com/read/29073113/%C3%AE-2-adrenoceptor-signaling-in-airway-epithelial-cells-promotes-eosinophilic-inflammation-mucous-metaplasia-and-airway-contractility
#7
Long P Nguyen, Nour A Al-Sawalha, Sergio Parra, Indira Pokkunuri, Ozozoma Omoluabi, Adedoyin A Okulate, Elizabeth Windham Li, Matthew Hazen, Jose M Gonzalez-Granado, Craig J Daly, John C McGrath, Michael J Tuvim, Brian J Knoll, Burton F Dickey, Richard A Bond
The mostly widely used bronchodilators in asthma therapy are β2-adrenoreceptor (β2AR) agonists, but their chronic use causes paradoxical adverse effects. We have previously determined that β2AR activation is required for expression of the asthma phenotype in mice, but the cell types involved are unknown. We now demonstrate that β2AR signaling in the airway epithelium is sufficient to mediate key features of the asthmatic responses to IL-13 in murine models. Our data show that inhibition of β2AR signaling with an aerosolized antagonist attenuates airway hyperresponsiveness (AHR), eosinophilic inflammation, and mucus-production responses to IL-13, whereas treatment with an aerosolized agonist worsens these phenotypes, suggesting that β2AR signaling on resident lung cells modulates the asthma phenotype...
October 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29071482/-nontuberculous-mycobacterial-infections
#8
REVIEW
A Nowag, M Platten, G Plum, P Hartmann
Nontuberculous mycobacterial (NTM) are found ubiquitously in the environment and are usually of low pathogenicity. Infection occurs via inhalation of aerosols, and some species may cause severe infections. The incidence of NTM infections is rising worldwide. The risk of developing NTM disease depends on the susceptibility of the host as well as the frequency and duration of exposure. In addition to congenital immune deficiencies and immunosuppressive therapy, structural lung and systemic diseases, including rheumatoid arthritis (RA), are associated with an increased risk for NTM infections...
November 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29066385/nebulized-coenzyme-q10-nanosuspensions-a-versatile-approach-for-pulmonary-antioxidant-therapy
#9
Irene Rossi, Fabio Sonvico, Jason T McConville, Francesca Rossi, Eleonore Fröhlich, Sarah Zellnitz, Alessandra Rossi, Elena Del Favero, Ruggero Bettini, Francesca Buttini
Coenzyme Q10 (CoQ10) is an antioxidant substance indicated as a dietary supplement which has been proposed as adjuvant in the treatment of cardiovascular disorders and cancer for its protective and immunostimulating activities. The aim of this work was the production by high-pressure homogenization, characterization and stability investigation of three different CoQ10 nanosuspensions designed to be administered to the lungs by nebulization. Three surfactants, i.e. lecithin, PEG32 stearate and vitamin-E TPGS, were selected to stabilize CoQ10 formulations...
October 21, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29065930/optimization-and-characterization-of-spray-dried-igg-formulations-a-design-of-experiment-approach
#10
Homa Faghihi, Abdolhosein Rouholamini Najafabadi, Alireza Vatanara
BACKGROUND: The purpose of the present study is to optimize a spray-dried formulation as a model antibody regarding stability and aerodynamic property for further aerosol therapy of this group of macromolecules. METHOD: A three-factor, three-level, Box-Behnken design was employed milligrams of Cysteine (X1), Trehalose (X2), and Tween 20 (X3) as independent variables. The dependent variables were quantified and the optimized formulation was prepared accordingly. SEC-HPLC and FTIR-spectroscopy were conducted to evaluate the molecular and structural status of spray-dried preparations...
October 24, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/29049340/pressurized-intra-peritoneal-aerosol-chemotherapy-in-patients-suffering-from-peritoneal-carcinomatosis-of-pancreatic-adenocarcinoma
#11
Tanja Khosrawipour, Veria Khosrawipour, Urs Giger-Pabst
BACKGROUND: Patients suffering from peritoneal carcinomatosis of pancreatic adenocarcinoma were treated with Pressurized Intra Peritoneal Aerosol Chemotherapy (PIPAC), initial clinical findings are presented. METHODS: Single institution, tertiary referral center certified for therapy of peritoneal disease. Prospective data collection of PIPAC therapy with doxorubicin 1.5 mg/m2 and cisplatin 7.5 mg/m2 of body surface delivered at intervals of six weeks. The outcome criteria were microscopic pathological response, survival and adverse events (v4...
2017: PloS One
https://www.readbyqxmd.com/read/29046368/enhancement-of-lung-gene-delivery-after-aerosol-a-new-strategy-using-non-viral-complexes-with-antibacterial-properties
#12
Angelique Mottais, Tony Le Gall, Yann Sibiril, Julian Ravel, Véronique Laurent, Frédérique d'Arbonneau, Tristan Montier
The pathophysiology of obstructive pulmonary diseases, such as cystic fibrosis, leads to the development of chronic infections in the respiratory tract. Thus, the symptomatic management of the disease requires, in particular, repetitive antibiotherapy. Besides these antibacterial treatments, certain pathologies, such as cystic fibrosis or chronic obstructive pulmonary disease, require the intake of many drugs. This simultaneous absorption may lead to undesired drug interactions. For example, Orkambi® (lumacaftor/Ivacaftor, Vertex), a pharmacological drug employed to treat F508del patients, cannot be used with antibiotics such as rifampicin or rifabutin (rifamycin family) which are necessary to treat Mycobacteriaceae...
October 18, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29019170/drug-delivery-from-an-innovative-lama-laba-co-suspension-delivery-technology-fixed-dose-combination-mdi-evidence-of-consistency-robustness-and-reliability
#13
Amber Doty, Jon Schroeder, Kou Vang, Mark Sommerville, Mervin Taylor, Brad Flynn, David Lechuga-Ballesteros, Peter Mack
To ensure consistency of clinical outcomes, orally inhaled therapies must exhibit consistent delivered dose and aerosol properties at the time of manufacturing, throughout storage, and during various patient-use conditions. Achieving consistency across these scenarios has presented a significant challenge, especially for combination products that contain more than one drug. This study characterized the delivered dose and aerosol properties of glycopyrrolate/formoterol fumarate metered dose inhaler (GFF MDI; Bevespi Aerosphere™)...
October 10, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28994337/aerosol-therapy-through-high-flow-nasal-cannula-in-pediatric-patients
#14
Awni M Al-Subu, Scott Hagen, Marlowe Eldridge, Juan Boriosi
High flow nasal cannula (HFNC) is increasingly used in pediatric patients suffering from respiratory failure. In some disease processes, patients may also benefit from aerosol therapy. Therefore, the use of HFNC to deliver aerosolized medications is a convenient and attractive option. Areas covered: This review aims to appraise available evidence concerning the efficiency of aerosol nebulized therapy delivery using HFNC in pediatric patients. Expert commentary: Delivery of aerosol particles is a very complex process and depends on the use of oxygen vs...
December 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28925894/aerosol-a-novel-vehicle-in-pharmacotherapy-in-neonates
#15
Ronan MacLoughlin, Colin Telfer, Andy Clark, James Fink
BACKGROUND: Local delivery of drugs to the lungs of newborn infant represents an unmet need as no drugs have been approved. Potential benefits could be large. Development of aerosol for delivery of drugs to infants and newborn offers huge potential for better therapy. Newborn infants present unique challenges with regard to aerosol therapy. Efficient deposition of aerosolized medications on the neonate airway surface is hampered by anatomical features such as small airway geometries and physiological features such as exquisitely small tidal volumes, rapid breathing and unfavorable inhalation:exhalation ratios...
September 18, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28919143/long-term-safety-of-glycopyrrolate-eflow-%C3%A2-cs-in-moderate-to-very-severe-copd-results-from-the-glycopyrrolate-for-obstructive-lung-disease-via-electronic-nebulizer-golden-5-randomized-study
#16
Gary T Ferguson, Thomas Goodin, Robert Tosiello, Alistair Wheeler, Edward Kerwin
BACKGROUND: The use of long-acting bronchodilators is an essential component of the management of chronic obstructive pulmonary disease (COPD). The GOLDEN 5 Phase III, randomized, active-controlled, open-label study was conducted to evaluate the long-term safety and tolerability of a nebulized glycopyrrolate formulation (SUN-101) delivered via the investigational eFlow(®) Closed System (eFlow(®) CS) nebulizer in subjects with moderate-to-very-severe COPD. METHODS: Subjects were randomized in a 4:3 ratio to nebulized glycopyrrolate 50 μg twice daily (BID) or tiotropium 18 μg once daily (OD) and treated for 48 weeks...
August 24, 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28900843/pressurized-intraperitoneal-aerosol-chemotherapy-pipac-procedure-for-non-resectable-peritoneal-carcinomatosis-with-video
#17
Jean-Baptiste Cazauran, Mohammad Alyami, Antoinette Lasseur, Isabo Gybels, Olivier Glehen, Naoual Bakrin
BACKGROUND: Peritoneal carcinomatosis (PC) is a common evolution of abdominal cancers and is associated with poor prognosis in the absence of aggressive multimodal therapy.1 Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a safe and innovative approach, which enhances the effect of chemotherapy 2 without reported renal/hepatic toxicity.3,4 It requires mastery of technical aspects to reduce postoperative morbidity, increase effectiveness, and prevent caregiver chemotherapy exposure...
September 12, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28898546/taking-the-challenge-a-protocolized-approach-to-optimize-pneumocystis-pneumonia-prophylaxis-in-renal-transplant-recipients
#18
K F Urbancic, F Ierino, E Phillips, P F Mount, A Mahony, J A Trubiano
While trimethoprim-sulfamethoxazole is considered first-line therapy for Pneumocystis pneumonia prevention in renal transplant recipients, reported adverse drug reactions may limit use and increase reliance on costly and less effective alternatives, often aerosolized pentamidine. We report our experience implementing a protocolized approach to trimethoprim-sulfamethoxazole adverse drug reaction assessment and rechallenge to optimize prophylaxis in this patient cohort. We retrospectively reviewed 119 patients receiving Pneumocystis pneumonia prophylaxis prior to and after protocol implementation...
September 12, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28874611/how-should-aerosols-be-delivered-during-invasive-mechanical-ventilation
#19
Rajiv Dhand
The delivery of aerosols to mechanically ventilated patients presents unique challenges and differs from inhaled drug delivery in spontaneously breathing patients in several respects. Successful aerosol delivery during invasive mechanical ventilation requires careful consideration of a host of factors that influence the amount of drug inhaled by the patient. Pressurized metered-dose inhalers and nebulizers (jet, ultrasonic, and vibrating mesh) are the most commonly used aerosol delivery devices in these patients, although other delivery devices, such as dry powder inhalers, soft mist inhalers, and intratracheal nebulizing catheters, could also be adapted for in-line use...
October 2017: Respiratory Care
https://www.readbyqxmd.com/read/28872662/current-options-in-aerosolised-drug-therapy-for-children-receiving-respiratory-support
#20
REVIEW
S Trend, B S von Ungern-Sternberg, S G Devadason, A Schultz, M L Everard
Inhalation of aerosolised medications are the mainstay of treatment for a number of chronic lung diseases and have several advantages over systemically-administered medications. These include more rapid onset of action for drugs such as β-adrenergic agonists when compared with oral medication, high luminal doses for inhaled antibiotics when used to treat endobronchial infection, and an improved therapeutic index compared with systemic delivery for these and other classes of drugs such as corticosteroids. The use of aerosolised drugs to treat patients whose tracheas are intubated is less well established, in part because systemic delivery via the intravenous route can be a simpler alternative for many drugs...
November 2017: Anaesthesia
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