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Aerosol therapy

Moyu Ming, Zhixi Luo, Shengqiu Lv, Chaoqian Li
The present study aimed to investigate whether inhalation of inactivated‑Mycobacterium phlei could prevent airway hyperresponsiveness and airway eosinophilia. A total of 24 male Balb/c mice were randomly divided into three groups: Normal control group (group A), asthma model group (group B) and the intervention group (group C), (8 mice/group). Group A mice were sensitized and with challenged saline and group B with ovalbumin (OVA). Group C mice were administered with aerosol Mycobacterium phlei once daily prior to the allergen challenge...
October 19, 2016: Molecular Medicine Reports
Elsa Bodier-Montagutelli, Eric Morello, Guillaume l'Hostis, Antoine Guillon, Emilie Dalloneau, Renaud Respaud, Nikita Pallaoro, Hélène Blois, Laurent Vecellio, Jérôme Gabard, Nathalie Heuzé-Vourc'h
Bacterial respiratory tract infections (RTIs) are increasingly difficult to treat due to evolving antibiotic resistance. In this context, bacteriophages (or phages) are part of the foreseen alternatives or combination therapies. Delivering phages through the airways seems more relevant to accumulate these natural antibacterial viruses in proximity to their bacterial host, within the infectious site. Areas covered: This review addresses the potential of phage therapy to treat RTIs and discusses preclinical and clinical results of phages administration in this context...
October 25, 2016: Expert Opinion on Drug Delivery
Susumu Ishiguro, Nabil A Alhakamy, Deepthi Uppalapati, Jennifer Delzeit, Cory J Berkland, Masaaki Tamura
To evaluate the potential of cell-penetrating peptide-based delivery of apoptosis-inducer gene in cancer therapy, a modified HIV-1 TAT peptide (dimerized TAT peptide, dTAT) was studied. The dTAT and plasmid DNA (pDNA) complexes (dTAT-pDNA) were condensed using calcium chloride (dTAT-pDNA-Ca(2+)). This simple nonviral formulation approach showed high levels of gene expression in vitro without any cytotoxicity. In mouse studies, a single intratracheal (IT) aerosol spray or 2 intravenous (IV) injections of the dTAT, apoptosis-inducer gene, angiotensin II type 2 receptor (AT2R), and Ca(2+) complexes (dTAT-pAT2R-Ca(2+)) significantly attenuated the acutely growing mouse Lewis lung carcinoma allografts in mouse lungs...
October 18, 2016: Journal of Pharmaceutical Sciences
Bo Chen, Shuai Feng, Xiao-Wen Yin
OBJECTIVE: To study the effect of obesity on the treatment outcome of asthma predictive index (API)-positive infants and young children with wheezing. METHODS: A total of 208 API-positive infants and young children with wheezing were enrolled. According to the Kaup index, the patients were divided into an obese group (n=93) and a non-obese group (n=115). The patients were given multimodality therapy in an acute episode of wheezing and aerosol inhalation of inhaled corticosteroid (ICS) budesonide suspension in the remission stage...
October 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
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...
October 17, 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
Gediminas Žekonis, Jonas Žekonis, Alvydas Gleiznys, Viktorija Noreikienė, Ingrida Balnytė, Renata Šadzevičienė, Julija Narbutaitė
BACKGROUND Various studies have shown that non-surgical periodontal treatment is correlated with reduction in clinical parameters and plasma levels of inflammatory markers. The aim of this study was to evaluate the effect of long-term weekly supragingival irrigations with aerosolized 0.5% hydrogen peroxide as maintenance therapy followed by non-surgical periodontal treatment on clinical parameters, plasma levels of inflammatory markers, and morphological changes in gingival tissues of patients with periodontitis...
October 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Sophia C Poletti, Islam Batashev, Jens Reden, Thomas Hummel
Limited olfactory improvement after topical steroid therapy in chronic rhinosinusitis (CRS) patients might result from restricted drug access to the olfactory cleft. The aim of our study was to investigate the difference between two methods to topically administer steroids with respect to olfaction: (1) conventional nasal spray and (2) a device using pressure and vibration to distribute steroid aerosol endonasally. A prospective study was performed in patients with olfactory impairment due to chronic rhinosinusitis with and without nasal polyps...
October 11, 2016: European Archives of Oto-rhino-laryngology
Jayesh Dhanani, John F Fraser, Hak-Kim Chan, Jordi Rello, Jeremy Cohen, Jason A Roberts
Drug dosing in critically ill patients is challenging due to the altered drug pharmacokinetics-pharmacodynamics associated with systemic therapies. For many drug therapies, there is potential to use the respiratory system as an alternative route for drug delivery. Aerosol drug delivery can provide many advantages over conventional therapy. Given that respiratory diseases are the commonest causes of critical illness, use of aerosol therapy to provide high local drug concentrations with minimal systemic side effects makes this route an attractive option...
October 7, 2016: Critical Care: the Official Journal of the Critical Care Forum
Jeong Hoon Byeon, Jae Hong Park
Gold (Au)-decorated iron oxide (Fe3O4), Au/Fe3O4, Janus nanoparticles were fabricated via the continuous route for aerosol Au incorporation with Fe3O4 domains synthesized in an aqueous medium as multifunctional nanoplatforms. The fabricated nanoparticles were subsequently exposed to 185-nm UV light to generate positive charges on Au surfaces, and their activities were tested in computed tomography (CT) and magnetic resonance (MR) imaging, gene-delivery and photothermal therapy. No additional polymeric coatings of the Janus particles also had a unique ability to suppress inflammatory responses in macrophages challenged with lipopolysaccharide, which may be due to the absence of amine groups...
October 7, 2016: Scientific Reports
Roberto W Dal Negro, Massimiliano Mazzolini, Paola Turco, Alessandro Zanasi
BACKGROUND: Cough is one of the most common discomforts affecting general population, which can disrupt subjects' quality of life due to its physical, social, and psychological effects. Aim of the study was to investigate the impact of cough and related beliefs of general population. METHODS: A cross-sectional telephone survey was carried out by means of a specific, validated questionnaire on a representative sample of Italian general population. All the interviews were carried out according to the Computer Assisted Telephone Interview (CATI) methodology by expert, professional interviewers...
2016: Multidisciplinary Respiratory Medicine
Smeeta Sardesai, Manoj Biniwale, Fiona Wertheimer, Arlene Garingo, Rangasamy Ramanathan
Respiratory distress syndrome (RDS) due to surfactant deficiency is the most common cause of respiratory failure in preterm infants. Tremendous progress has been made since the original description that surfactant deficiency is the major cause of RDS. Surfactant therapy has been extensively studied in preterm infants and has been shown to significantly decrease air leaks and neonatal and infant mortality. Synthetic and animal-derived surfactants from bovine as well as porcine origin have been evaluated in randomized controlled trials...
October 5, 2016: Pediatric Research
Cheng-Qiong Luo, Yoonjeong Jang, Lei Xing, Peng-Fei Cui, Jian-Bin Qiao, Ah Young Lee, Hyeon-Jeong Kim, Myung-Haing Cho, Hu-Lin Jiang
Lung cancer has been a leading cause of cancer mortality worldwide and aerosol-mediated gene therapy endows numerous advantages compared to other traditional modalities. Here, we reported a folic acid (FA)-modified hyperbranched polyspermine (HPSPE) with prominent biocompatibility for lung cancer cell targeted gene therapy. FA was decorated to the HPSPE via an amidation reaction and the physicochemical properties of nanoplexes formed with DNA were characterized. Gel electrophoresis study elucidated that the designed polymer was capable to condense DNA and protect it from degradation by DNase I...
September 25, 2016: International Journal of Pharmaceutics
Donald E Craven, Jana Hudcova, Yuxiu Lei, Kathleen A Craven, Ahsan Waqas
Mechanically ventilated, intubated patients are at increased risk for tracheal colonization with bacterial pathogens that may progress to heavy bacterial colonization, ventilator-associated tracheobronchitis (VAT), and/or ventilator-associated pneumonia (VAP). Previous studies report that 10 to 30 % of patients with VAT progress to VAP, resulting in increased morbidity and significant acute and chronic healthcare costs. Several natural history studies, randomized, controlled trials, and a meta-analysis have reported antibiotic treatment for VAT can reduce VAP, ventilator days, length of intensive care unit (ICU) stay, and patient morbidity and mortality...
September 29, 2016: Critical Care: the Official Journal of the Critical Care Forum
Ramy Girshally, Cedric Demtröder, Nurettin Albayrak, Jürgen Zieren, Clemens Tempfer, Marc A Reymond
BACKGROUND: Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a novel drug delivery system able to induce regression of peritoneal metastasis (PM) in the salvage situation. The aim of this study was to determine the clinical characteristics, tumor histology, and extent of disease of the patients having undergone cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) after "neoadjuvant" PIPAC. METHODS: This study was performed at a single institution, tertiary center...
September 27, 2016: World Journal of Surgical Oncology
Jirakrit Leelarungrayub, Thirasak Borisuthibandit, Araya Yankai, Kritsana Boontha
OBJECTIVE: This study aimed to show the changes in oxidative stress and clinical condition from either chest physical therapy (CPT) or CPT with aerosol treatment in infant patients with pneumonia. METHODS: From 52 intubated patients, three groups were composed: groups A, B, and C comprising 21 patients aged 5.3±0.6 months (CPT program), 20 patients aged 5.6±0.7 months (aerosol treatment before CPT program), and eleven patients aged 5.0±0.35 months (control), respectively...
2016: Therapeutics and Clinical Risk Management
Loreana Gallo, Verónica Bucalá, María Verónica Ramírez-Rigo
Sodium cromoglycate (SC) is an antiasthmatic and antiallergenic drug commonly used for chronic inhalation therapy; however, many daily intakes are required due to the fast drug clearance from airways. For these reasons, SC polymeric particles for inhalatory administration with adequate aerosolization and mucoadhesive properties were designed to prolong the drug residence time in the site of action. Sodium carboxymethylcellulose (CMCNa), sodium hyaluronate, and sodium alginate were selected to co-process SC by spray drying...
September 22, 2016: AAPS PharmSciTech
Daniel Göhler, Veria Khosrawipour, Tanja Khosrawipour, David Diaz-Carballo, Thomas Albert Falkenstein, Jürgen Zieren, Michael Stintz, Urs Giger-Pabst
BACKGROUND: Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is gaining acceptance in clinical practice, but detailed information about the microinjection pump (MIP(®)), the generated aerosol and drug distribution is missing. ANALYTICAL METHODS: Ex vivo granulometric analyses by means of laser diffraction spectrometry were performed for MIP(®) aerosol characterization. Beside the standard operation conditions, the impact of the volumetric liquid flow rate on the aerosol characteristics was investigated with different liquids...
September 8, 2016: Surgical Endoscopy
Yunfeng Yan, Li Liu, Hu Xiong, Jason B Miller, Kejin Zhou, Petra Kos, Kenneth E Huffman, Sussana Elkassih, John W Norman, Ryan Carstens, James Kim, John D Minna, Daniel J Siegwart
Conventional chemotherapeutics nonselectively kill all rapidly dividing cells, which produces numerous side effects. To address this challenge, we report the discovery of functional polyesters that are capable of delivering siRNA drugs selectively to lung cancer cells and not to normal lung cells. Selective polyplex nanoparticles (NPs) were identified by high-throughput library screening on a unique pair of matched cancer/normal cell lines obtained from a single patient. Selective NPs promoted rapid endocytosis into HCC4017 cancer cells, but were arrested at the membrane of HBEC30-KT normal cells during the initial transfection period...
September 27, 2016: Proceedings of the National Academy of Sciences of the United States of America
Arzu Ari
There are several different types of drug delivery interfaces available on the market. Using the right interface for aerosol drug delivery to children is essential for effective inhalation therapy. However, clinicians usually focus on selecting the right drug-device combination and often overlook the importance of interface selection that lead to suboptimal drug delivery and therapeutic response in neonates and pediatrics. Therefore, it is necessary to critically assess each interface and understand its advantage and disadvantages in aerosol drug delivery to this patient population...
August 8, 2016: World Journal of Clinical Pediatrics
Gabriel Glockzin, Hans J Schlitt, Pompiliu Piso
Peritoneal metastasis is a common sign of advanced tumor stage, tumor progression or tumor recurrence in patients with colorectal cancer. Due to the improvement of systemic chemotherapy, the development of targeted therapy and the introduction of additive treatment options such as cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC), the therapeutic approach to peritoneal metastatic colorectal cancer (pmCRC) has changed over recent decades, and patient survival has improved. Moreover, in contrast to palliative systemic chemotherapy or best supportive care, the inclusion of CRS and HIPEC as inherent components of a multidisciplinary treatment regimen provides a therapeutic approach with curative intent...
August 6, 2016: World Journal of Gastrointestinal Pharmacology and Therapeutics
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