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Journal of Aerosol Medicine and Pulmonary Drug Delivery

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https://www.readbyqxmd.com/read/28418758/inhaled-heparin-therapeutic-efficacy-and-recent-formulations
#1
Ayca Yildiz-Pekoz, Yildiz Ozsoy
Heparin is well known for its anticoagulant and anti-inflammatory properties. Inhaled heparin regimens are increasingly being used to manage lung disease. It has been used to treat cystic fibrosis, thromboembolism, and pulmonary fibrosis, as well as bronchial asthma and asthma-induced airway hypersensitivity. Several preclinical studies attained some useful effects of heparin-administered, parenterally and through inhalation, treatment of lung disease. Besides, recent clinical trials suggest that inhaled heparin for lung diseases is beneficial and safe, but such data remain to be limited...
April 18, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28332899/in-vitro-tests-for-aerosol-deposition-v-using-realistic-testing-to-estimate-variations-in-aerosol-properties-at-the-trachea
#2
Xiangyin Wei, Michael Hindle, Renishkumar R Delvadia, Peter R Byron
BACKGROUND: The dose and aerodynamic particle size distribution (APSD) of drug aerosols' exiting models of the mouth and throat (MT) during a realistic inhalation profile (IP) may be estimated in vitro and designated Total Lung Dose, TLDin vitro, and APSDTLDin vitro, respectively. These aerosol characteristics likely define the drug's regional distribution in the lung. METHODS: A general method was evaluated to enable the simultaneous determination of TLDin vitro and APSDTLDin vitro for budesonide aerosols' exiting small, medium and large VCU-MT models...
March 23, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28300474/comparative-efficacies-of-inhaled-corticosteroids-and-systemic-corticosteroids-in-treatment-of-chronic-obstructive-pulmonary-disease-exacerbations-a-systematic-review-and-meta-analysis
#3
Yuhan Zhai, He Zhang, Tingli Sun, Maosheng Ye, Hongbo Liu, Rui Zheng
BACKGROUND: Corticosteroids play an important role in the treatment of chronic obstructive pulmonary disease (COPD) exacerbations, and a global initiative has suggested the use of inhaled corticosteroids (ICSs) as an alternative to systemic corticosteroids (SCs). Here, we report results of a meta-analysis performed to systematically compare the efficacies of ICSs and SCs in the treatment of COPD exacerbations. METHODS: PubMed, EMBASE, and the Cochrane databases were searched for relevant human clinical trials describing the use of ICSs compared with SCs in the treatment of COPD exacerbations...
March 16, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28282259/study-on-the-pulmonary-delivery-system-of-apigenin-loaded-albumin-nanocarriers-with-antioxidant-activity
#4
Zsófia Edit Pápay, Annamária Kósa, Béla Böddi, Zahra Merchant, Imran Y Saleem, Mohammed Gulrez Zariwala, Imre Klebovich, Satyanarayana Somavarapu, István Antal
BACKGROUND: Respiratory diseases are mainly derived from acute and chronic inflammation of the alveoli and bronchi. The pathophysiological mechanisms of pulmonary inflammation mainly arise from oxidative damage that could ultimately lead to acute lung injury. Apigenin (Api) is a natural polyphenol with prominent antioxidant and anti-inflammatory properties in the lung. Inhalable formulations that consist of nanoparticles (NPs) have several advantages over other administration routes, and therefore, this study investigated the application of apigenin-loaded bovine serum albumin nanoparticles (BSA-Api-NPs) for pulmonary delivery...
March 10, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28277892/development-of-optimized-inhalable-gemcitabine-loaded-gelatin-nanocarriers-for-lung-cancer
#5
Susanne R Youngren-Ortiz, David B Hill, Peter R Hoffmann, Kenneth R Morris, Edward G Barrett, M Gregory Forest, Mahavir B Chougule
BACKGROUND: Aerosol delivery of chemotherapeutic nanocarriers represents a promising alternative for lung cancer therapy. This study optimized gemcitabine (Gem)-loaded gelatin nanocarriers (GNCs) cross-linked with genipin (Gem-GNCs) to evaluate their potential for nebulized lung cancer treatment. METHODS: Gem-GNCs were prepared by two-step desolvation and optimized through Taguchi design and characterized for physicochemical properties. Particle size and morphology were confirmed by scanning and transmission electron microscopy...
March 9, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28277885/regional-ventilation-is-the-main-determinant-of-alveolar-deposition-of-coarse-particles-in-the-supine-healthy-human-lung-during-tidal-breathing
#6
Rui Carlos Sá, Kirby L Zeman, William D Bennett, G Kim Prisk, Chantal Darquenne
BACKGROUND: To quantify the relationship between regional lung ventilation and coarse aerosol deposition in the supine healthy human lung, we used oxygen-enhanced magnetic resonance imaging and planar gamma scintigraphy in seven subjects. METHODS: Regional ventilation was measured in the supine posture in a 15 mm sagittal slice of the right lung. Deposition was measured by using planar gamma scintigraphy (coronal scans, 40 cm FOV) immediately postdeposition, 1 hour 30 minutes and 22 hours after deposition of (99m)Tc-labeled particles (4...
March 9, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28277815/exhaled-particles-after-a-standardized-breathing-maneuver
#7
Björn Bake, Evert Ljungström, Annika Claesson, Hanne Krage Carlsen, Matthias Holm, Anna-Carin Olin
BACKGROUND: Particles in exhaled air (PEx) provide samples of respiratory tract lining fluid from small airways and offer a new opportunity to monitor pathological changes. The exhaled particles are produced by reopening of closed small airways and contain surfactant. The amount of PEx varies by orders of magnitude among subjects. A standardized breathing pattern reduces the variation, but it remains large and the reasons are unknown. The aim of the present study was to assess to what extent sex, age, body size, and spirometry results explain the interindividual variation of PEx among healthy middle-aged subjects...
March 9, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28277810/the-impact-of-common-inhaler-errors-on-drug-delivery-investigating-critical-errors-with-a-dry-powder-inhaler
#8
Imran Sulaiman, Jansen Seheult, Nirmal Sadasivuni, Elaine MacHale, Isabelle Killane, Spiros Giannoutsos, Breda Cushen, Matshediso Constantina Mokoka, Aoife Sartini Bhreathnach, Fiona Boland, Richard B Reilly, Richard W Costello
BACKGROUND: Researchers, using checklists, have identified that 30%-90% of patients make errors in inhaler use. It is not certain whether these errors affect the delivery of medication. We have developed an electronic monitor (INCA™) that records audio each time an inhaler is used, providing objective information on inhaler technique. The aim of this study was to assess the effect that correctly identified inhaler errors, with the INCA device, have on drug delivery. METHODS: This was a prospective study of healthy volunteers using a salbutamol Diskus™...
March 9, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28170282/pharmacokinetics-of-salbutamol-delivered-from-the-unit-dose-dry-powder-inhaler-comparison-with-the-metered-dose-inhaler-and-diskus-dry-powder-inhaler
#9
Alison Moore, Kylie Riddell, Shashidhar Joshi, Robert Chan, Rashmi Mehta
AIM: To compare the systemic exposure of salbutamol following delivery from the unit dose dry powder inhaler (UD-DPI) system with that from the Diskus(®) and metered dose inhaler (MDI). MATERIALS AND METHODS: This open-label, two-part, six-way crossover, randomized single-dose study in healthy subjects evaluated salbutamol systemic exposure of three dose strengths (using three inhalations: 3 × 150 μg [450 μg], 3 × 200 μg [600 μg], and 3 × 250 μg [750 μg]) and 2% of drug in lactose blends (1...
February 7, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28157430/factors-determining-in-vitro-lung-deposition-of-albuterol-aerosol-delivered-by-ventolin-metered-dose-inhaler
#10
Rajoshi Biswas, Nicola A Hanania, Ashutosh Sabharwal
BACKGROUND: The effectiveness of metered-dose inhalers (MDIs) in delivering medication to the lungs highly depends on its correct usage technique. Current guidelines state optimal technique for high lung deposition should include a slow inhalation (>5 seconds) at an inspiratory flow rate of 30 L/min and inhaler actuation at the start of inhalation. However, these recommendations were based on clinical studies using CFC (chlorofluorocarbon)-MDIs and in vitro studies of HFA (hydrofluoroalkane)-MDIs using idealized MDI techniques of uniform inhalation and actuation, disregarding the nonuniform techniques of actual patients...
February 3, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28157412/a-trans-nasal-aerosol-delivery-device-for-efficient-pulmonary-deposition
#11
Kirby L Zeman, Juan Rojas Balcazar, Fred Fuller, Karl H Donn, Richard C Boucher, William D Bennett, Scott H Donaldson
BACKGROUND: Efficient delivery of aerosols to the lungs via the nasal route has been difficult to achieve, but it may offer benefits over the traditional oral route for a range of patient populations. Because slow, continuous delivery of short-acting agents could improve safety, tolerability, compliance, and efficacy when compared with the rapid, intermittent aerosol treatments delivered by mouthpiece or mask, a novel trans-nasal pulmonary aerosol delivery (tPAD) device was developed...
February 3, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977321/comparative-study-on-the-size-distributions-respiratory-deposition-and-transport-of-particles-generated-from-commonly-used-medical-nebulizers
#12
Yang Wang, Jiayu Li, Anna Leavey, Caroline O'Neil, Hilary M Babcock, Pratim Biswas
BACKGROUND: Medical nebulizers are widely and conveniently used to deliver medication to the lungs as an inhalable mist; however, the deposition of nebulized particles in the human respiratory system and the transport of the nebulized particles in the environment have not been studied in detail. METHODS: Five medical nebulizers of three different types (constant output, breath enhanced, and dosimetric) were evaluated. The size distribution functions (SDFs) and respiratory deposition of the particles generated from the nebulizers were characterized...
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977318/nebulized-recombinant-human-tissue-factor-pathway-inhibitor-attenuates-coagulation-and-exerts-modest-anti-inflammatory-effects-in-rat-models-of-lung-injury
#13
Florry E van den Boogaard, Jorrit J Hofstra, Xanthe Brands, Marcel M Levi, Joris J T H Roelofs, Sebastiaan A J Zaat, Cornelis Van't Veer, Tom van der Poll, Marcus J Schultz
BACKGROUND: Critically ill patients are at a constant risk of direct (e.g., by pneumonia) or indirect lung injury (e.g., by sepsis). Excessive alveolar fibrin deposition is a prominent feature of lung injury, undermining pulmonary integrity and function. METHODS: We examined the effect of local administration of recombinant human tissue factor pathway inhibitor (rh-TFPI), a natural anticoagulant, in two well-established models of lung injury in rats. Rats received intratracheal instillation of Pseudomonas aeruginosa, causing direct lung injury, or they received an intravenous injection of Escherichia coli lipopolysaccharide (LPS), causing indirect lung injury...
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977306/nasal-and-olfactory-deposition-with-normal-and-bidirectional-intranasal-delivery-techniques-in-vitro-tests-and-numerical-simulations
#14
Jinxiang Xi, Zhaoxuan Wang, Danielle Nevorski, Thomas White, Yue Zhou
BACKGROUND: Intranasal delivery protocols that can effectively deposit drugs to the olfactory region are severely lacking. Furthermore, it is still challenging to quantify nasal deposition on a regional or local basis, which is crucial in assessing the performance of targeted olfactory drug delivery. OBJECTIVES: To visually and quantitatively compare drug depositions in the nose and olfactory region with normal and bidirectional breathing patterns with vibrating mesh and jet nebulizers...
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27792477/suppression-of-tobacco-carcinogen-induced-lung-tumorigenesis-by-aerosol-delivered-glycerol-propoxylate-triacrylate-spermine-copolymer-short-hairpin-rab25-rna-complexes-in-female-a-j-mice
#15
Nomundelger Gankhuyag, Kyeong Nam Yu, Orkhonselenge Davaadamdin, Somin Lee, Won Young Cho, Changhoon Park, Hu-Lin Jiang, Bijay Singh, Chan-Hee Chae, Myung-Haing Cho, Chong-Su Cho
BACKGROUND: Rab25, a member of Rab family of small guanosine triphosphatase, is associated with progression of various types of human cancers, including lung cancer, the leading cause of cancer-associated deaths around the globe. METHODS: In this study, we report the gene therapeutic effect of short hairpin Rab25 RNA (shRab25) on 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK)-induced lung tumorigenesis in female A/J mice. Initially, mice (6 weeks old) were injected with single dose of NNK (2 mg/0...
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27754730/a-novel-in-line-delivery-system-to-administer-dry-powder-mannitol-to-mechanically-ventilated-patients
#16
Benny Feng, Patricia Tang, Sharon Shui Yee Leung, Jayesh Dhanani, Hak-Kim Chan
BACKGROUND: Mechanically ventilated patients commonly suffer from ventilator-associated pneumonia, hypoxemia, and other lower respiratory tract infection as a result of pathogen colonization and poor sputum clearance. Consequently, there is a high rate of morbidity and mortality in these patients. Dry powder mannitol increases sputum clearance, and therefore, we developed a system to administer it to mechanically ventilated patients without disconnection from the ventilator. METHODS: The inspiratory line from a ventilator was split by using a three-way valve into two parallel lines where one contains a humidifier for normal breathing cycle and the other line contains a dry powder inhaler (Osmohaler™)...
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27740878/predicting-exposure-after-oral-inhalation-of-the-selective-glucocorticoid-receptor-modulator-azd5423-based-on-dose-deposition-pattern-and-mechanistic-modeling-of-pulmonary-disposition
#17
Per Bäckman, Ulrika Tehler, Bo Olsson
BACKGROUND: Exposure following oral inhalation depends on the deposition pattern of the inhaled aerosol, the extent and rate of oral and pulmonary absorption, as well as systemic distribution and clearance. For lipophilic inhaled compounds with low water solubility and high permeability, the extent and rate of pulmonary absorption can be assumed dependent on deposition pattern as well as dissolution rate. MATERIALS AND METHODS: A mechanistic model of airway deposition, mucociliary clearance, dissolution, absorption, and dissipation was applied to simulate systemic exposure of the novel selective glucocorticoid receptor modulator, AZD5423, when dosed to healthy volunteers using two different nebulizers and two different dry powder inhalers in combination with two different primary particle size distributions...
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27563742/the-advantages-of-adding-hyaluronic-acid-or-mannitol-to-hypertonic-saline-inhalation-treatment-in-cystic-fibrosis
#18
Clizia Cazzarolli, Chiara Tartali, Ugo Pradal
No abstract text is available yet for this article.
April 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27748638/the-history-of-therapeutic-aerosols-a-chronological-review
#19
Stephen W Stein, Charles G Thiel
In 1956, Riker Laboratories, Inc., (now 3 M Drug Delivery Systems) introduced the first pressurized metered dose inhaler (MDI). In many respects, the introduction of the MDI marked the beginning of the modern pharmaceutical aerosol industry. The MDI was the first truly portable and convenient inhaler that effectively delivered drug to the lung and quickly gained widespread acceptance. Since 1956, the pharmaceutical aerosol industry has experienced dramatic growth. The signing of the Montreal Protocol in 1987 led to a surge in innovation that resulted in the diversification of inhaler technologies with significantly enhanced delivery efficiency, including modern MDIs, dry powder inhalers, and nebulizer systems...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27676193/inhaler-technique-in-asthma-how-does-it-relate-to-patients-preferences-and-attitudes-toward-their-inhalers
#20
Lia Jahedi, Sue R Downie, Bandana Saini, Hak-Kim Chan, Sinthia Bosnic-Anticevich
BACKGROUND: Correct inhaler technique can increase medication efficacy, reducing both dose and side effects. Patient preference for inhaler device has not been fully explored, and we hypothesized that if patients have a preference and can choose their inhaler, they might be more likely to use it correctly. Our aim was to determine the preferences, attitudes, and perceptions of patients with asthma toward their inhalers, and to evaluate whether any of these factors were related to inhalation technique...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
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