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Aerosol therapy

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https://www.readbyqxmd.com/read/28448027/dry-powder-and-nebulized-aerosol-inhalation-of-pharmaceuticals-delivered-to-mice-using-a-nose-only-exposure-system
#1
Jonathan E Phillips, Xuxia Zhang, James A Johnston
Obstructive respiratory diseases like asthma and chronic obstructive pulmonary disease (COPD) are currently treated by inhaled anti-inflammatory and bronchodilator drugs. Despite the availability of multiple treatments, both diseases are growing public health concerns. The majority of asthma patients are well controlled on current inhaled therapies but a substantial number of patients with severe asthma are not. Asthma affects an estimated 300 million people worldwide and approximately 20 percent have a severe form of the disease...
April 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28407227/systematic-review-of-pressurized-intraperitoneal-aerosol-chemotherapy-for-the-treatment-of-advanced-peritoneal-carcinomatosis
#2
REVIEW
F Grass, A Vuagniaux, H Teixeira-Farinha, K Lehmann, N Demartines, M Hübner
BACKGROUND: Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a minimally invasive approach under investigation as a novel treatment for patients with peritoneal carcinomatosis of various origins. The aim was to review the available evidence on mechanisms, clinical effects and risks. METHODS: This was a systematic review of the literature on pressurized intraperitoneal chemotherapy published between January 2000 and October 2016. All types of scientific report were included...
May 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28394614/a-synthetic-macromolecular-antibiotic-platform-for-inhalable-therapy-against-aerosolized-intracellular-alveolar-infections
#3
Debobrato Das, Jasmin Chen, Selvi Srinivasan, Abby Michelle Kelly, Brian Lee, Hye-Nam Son, Frank Radella, Timothy E West, Daniel M Ratner, Anthony J Convertine, Shawn J Skerrett, Patrick S Stayton
Lung-based intracellular bacterial infections remain one of the most challenging infectious disease settings. For example, the current standard for treating Franciscella tularensis pneumonia (tularemia) relies on prolonged administration of oral and intravenous antibiotics that poorly achieve and sustain pulmonary drug bioavailability. Inhalable antibiotic formulations are approved and in clinical development for upper respiratory infections, but sustained drug dosing from inhaled antibiotics against alveolar intracellular infections remains a current unmet need...
April 10, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28391040/pegylated-composite-nanoparticles-of-plga-and-polyethylenimine-for-safe-and-efficient-delivery-of-pdna-to-lungs
#4
Atul Kolte, Sushilkumar Patil, Pierre Lesimple, John W Hanrahan, Ambikanandan Misra
Achieving stable, efficient and non-toxic pulmonary gene delivery is most challenging requirement for successful gene therapy to lung. Composite nanoparticles (NPs) of the poly(lactic-co-glycolic acid) (PLGA) and cationic polymer polyethyleneimine (PEI) is an efficient alternative to viral and liposomal vectors for the pulmonary delivery of pDNA. NPs with different weight ratios (0-12.5%w/w) of PLGA/PEI were prepared and characterized for size, morphology, surface charge, pDNA loading and in vitro release. The in vitro cell uptake and transfection studies in the CFBE41o-cell line revealed that NPs with 10% w/w PEI were more efficient but they exhibited significant cytotoxicity in MTT assays, challenging the safety of this formulation...
April 6, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28389274/significance-of-breath-hold-time-in-dry-powder-aerosol-drug-therapy-of-copd-patients
#5
Alpár Horváth, Imre Balásházy, Gábor Tomisa, Árpád Farkas
Aerosol drugs are effectively used to treat chronic respiratory diseases. The efficiency of the therapy depends also on the amount and distribution of drug deposited within the airways. The objective of this study is to apply numerical techniques to analyse the effect of the duration of breath-hold after the inhalation of six different commercialized dry powder drugs on their lung deposition. For this purpose a computational airway deposition model has been adapted and validated to the special case of therapeutic aerosols...
April 4, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28355706/-clinical-effect-of-rock-salt-aerosol-therapy-in-treatment-of-occupational-allergic-contact-dermatitis
#6
M L Sun, L Song, H M Yang, D M Shi, Y L Bi
Objective: To investigate the clinical effect and safety of rock salt aerosol therapy in the treatment of occupational allergic contact dermatitis. Methods: A total of 65 patients with acute exacerbation of occupational allergic contact dermatitis who were treated in the Outpatient Service and Inpatient Department of our hospital from March 2013 to December 2015 were enrolled and randomly divided into observation group and control group using a random number table. Both groups were givensymptomatic treatment including desensitization, and the patients in the observation group were given rock salt aerosol therapy for 2 courses in addition to the symptomatic treatment...
February 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28352199/survey-on-attitudes-of-italian-pediatricians-toward-cough
#7
Alessandro Zanasi, Luigi Morcaldi, Salvatore Cazzato, Massimiliano Mazzolini, Marzia Lecchi, Antonio Maria Morselli-Labate, Marianna Mastroroberto, Roberto W Dal Negro
CONTEXT: Children's cough is a daily concern for most pediatricians. The management of both acute and chronic cough requires a systematic and comprehensive approach. Despite the approved protocols for management, the pediatric assessment of cough and the corresponding prescribing attitude frequently do not fit these protocols, which can be affected by parental suggestions - sometimes substantially. OBJECTIVE: The objective of this study was to investigate both the perception and the behavior of a representative sample of Italian pediatricians toward cough in real life...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/28351615/a-tantalum-oxide-based-core-shell-nanoparticle-for-triple-modality-image-guided-chemo-thermal-synergetic-therapy-of-esophageal-carcinoma
#8
Yushen Jin, Xibo Ma, Shuai Zhang, Hui Meng, Min Xu, Xin Yang, Wanhai Xu, Jie Tian
Early detection and therapy of esophageal cancer is very important for improving the prognosis and survival rate of the patient. A theranostic agent that combines multimodal imaging with cancer therapy may be used for augmenting the visualization and treatment of the cancer. Herein, we report the synthesis of a hollow tantalum oxide (TaOx) nanoparticle that was successfully engineered by encapsulation of polypyrrole (PPy) and doxorubicin (DOX) in the core and conjugation with a near infrared fluorescence dye (NIRDye800) on the shell of the hollow TaOx nanoparticles...
March 27, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28346048/mabdelivery-administration-routes-for-antibody-therapy-third-labex-mabimprove-industrial-workshop-july-2-2015-tours-france
#9
Elsa Bodier-Montagutelli, Renaud Respaud, Hervé Watier, Audrey Guillon-Munos
The annual "LabEx MAbImprove Industrial Workshops" are primarily intended to provide a comprehensive view about topics of interest for the pharmaceutical industry to scientists involved in research on therapeutic antibodies. The third workshop in this series, held July 2, 2015 in Tours, was dedicated to the optimization of delivery, namely all processes leading monoclonal antibodies to reach their target site. The commonly used intravenous (IV) route, although advantageous in terms of pharmacokinetics and pharmacodynamics, presents some disadvantages in terms of patients' convenience, therapeutic target access or treatment cost...
May 2017: MAbs
https://www.readbyqxmd.com/read/28322141/lessons-learned-from-gemcitabine-impact-of-therapeutic-carrier-systems-and-gemcitabine-s-drug-conjugates-on-cancer-therapy
#10
REVIEW
Sathish Dyawanapelly, Animesh Kumar, Manish K Chourasia
Currently, drug delivery systems have a high impact in cancer therapy and are receiving more attention than conventional cancer treatment modalities. Compared with current cancer therapies, gemcitabine (2', 2'-difluoro-2'-deoxycytidine) has been proven to be an effective chemotherapeutic agent against pancreatic, colon, bladder, breast, ovarian, non-small-cell lung, and head and neck cancers in combination with other anticancer agents. To improve the safety and efficacy of cytotoxic drugs, several drug delivery systems have been explored...
2017: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/28321811/interleukin-2-old-and-new-approaches-to-enhance-immune-therapeutic-efficacy
#11
Pooja Dhupkar, Nancy Gordon
Interleukin-2 (IL-2) is a very well-known cytokine that has been studied for the past 35 years. It plays a major role in the growth and proliferation of many immune cells such NK and T cells. It is an important immunotherapy cytokine for the treatment of various diseases including cancer. Systemic delivery of IL-2 has shown clinical benefit in renal cell carcinoma and melanoma patients. However, its use has been limited by the numerous toxicities encountered with the systemic delivery. Intravenous IL-2 causes the well-known "capillary leak syndrome," or the leakage of fluid from the circulatory system to the interstitial space resulting in hypotension (low blood pressure), edema, and dyspnea that can lead to circulatory shock and eventually cardiopulmonary collapse and multiple organ failure...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28289553/%C3%AE-gal-nanoparticles-in-wound-and-burn-healing-acceleration
#12
REVIEW
Uri Galili
Significance: Rapid recruitment and activation of macrophages may accelerate wound healing. Such accelerated healing was observed in wounds and burns of experimental animals treated with α-gal nanoparticles. Recent Advances: α-Gal nanoparticles present multiple α-gal epitopes (Galα1-3Galβ1-4GlcNAc-R). α-Gal nanoparticles applied to wounds bind anti-Gal (the most abundant antibody in humans) and generate chemotactic complement peptides, which rapidly recruit macrophages. Fc/Fc receptor interaction between anti-Gal coating the α-gal nanoparticles and recruited macrophages activates macrophages to produce cytokines that accelerate healing...
March 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28288490/development-in-vitro-characterization-antitumor-and-aerosol-performance-evaluation-of-respirable-prepared-by-self-nanoemulsification-method
#13
Neda Naseri, Parvin Zakeri-Milani, Hamed Hamishehkar, Younes Pilehvar-Soltanahmadi, Hadi Valizadeh
Poor water solubility and low oral bioavailability limit the clinical application of Erlotinib as an anticancer. For this purpose, we encapsulated erlotinib in the solid lipid nanoparticles (SLN) and designed a spray-dried dry powder inhalable (DPI) formulation. Erlotinib-loaded SLNs were prepared using self-nanoemulsifying and characterized for physicochemical properties. Pulmonary deposition of spray-dried DPI formulation was performed using Next Generation Impactor. The particle size and zeta potential of Erlotinib-loaded SLNs were 300 to 800 nm and -18 to -32 mV, respectively...
March 13, 2017: Drug Research
https://www.readbyqxmd.com/read/28286235/aerosol-administration-increases-the-efficacy-of-oseltamivir-for-the-treatment-of-mice-infected-with-influenza-viruses
#14
Victor H Leyva-Grado, Peter Palese
Oseltamivir is an influenza neuraminidase inhibitor that along with supportive therapy has shown to help critically ill patients infected with H7N9 and H1N1pdm influenza virus strains to recover from disease. The standard of care recommends the administration of oseltamivir via oral route which represents difficulties in patients with gastrointestinal complications. Here we tested the use of aerosol administration of oseltamivir to treat mice infected with influenza A/H7N9 virus or influenza A/H1N1pdm virus and directly compared this approach to the standard of care, oral administration...
June 2017: Antiviral Research
https://www.readbyqxmd.com/read/28280256/late-onset-cerebral-toxoplasmosis-after-allogeneic-hematopoietic-stem-cell-transplantation
#15
Ahmed M Khalaf, Mahmoud A Hashim, Mohammed Alsharabati, Kenneth Fallon, Joel K Cure, Peter Pappas, Shin Mineishi, Ayman Saad
BACKGROUND Toxoplasmosis is an uncommon but potentially fatal complication following allogeneic hematopoietic stem cell transplantation (HCT). Post-transplant toxoplasmosis is often a reactivation of prior infection and typically occurs within the first 6 months of transplant. Herein, we report that cerebral toxoplasmosis may occur 22 months after allogeneic hematopoietic stem cell transplantation. CASE REPORT We describe a case of cerebral toxoplasmosis that occurred 22 months after an allogeneic HCT while the patient was on aerosolized pentamidine for Pneumocystis jiroveci pneumonia (PCP) prophylaxis...
March 10, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28277892/development-of-optimized-inhalable-gemcitabine-loaded-gelatin-nanocarriers-for-lung-cancer
#16
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/28273385/effect-of-aerosolized-antipseudomonals-on-pseudomonas-positivity-and-bronchiolitis-obliterans-syndrome-after-lung-transplantation
#17
Cody A Moore, Joseph M Pilewski, Raman Venkataramanan, Keven M Robinson, Matthew R Morrell, Stephen R Wisniewski, Adriana Zeevi, John F McDyer, Christopher R Ensor
PURPOSE: To describe the effects of aerosolized antipseudomonals (AAPs) on Pseudomonas (PS) culture positivity, bronchiolitis obliterans syndrome (BOS), and acute cellular rejection (ACR) in lung transplant recipients (LTRs). METHODS: Single-center, retrospective cohort study was performed of adult LTRs treated with either AAP for ≥28 days vs no AAP therapy or AAP therapy <28 days, indexed to a matched median date post lung transplantation (LT). Primary outcome was freedom from PS positivity by positive bronchoalveolar lavage or bronchial wash at 1 year...
March 8, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28270430/the-roles-of-drug-therapy-given-via-the-endotracheal-tube-to-neonates
#18
Anne Greenough, Niovi Papalexopoulou
Many drugs are given to intubated neonates by the inhalation route. The optimum aerosol delivery system, however, has not been identified and there are many challenges in delivering drugs effectively to the lower airways of intubated neonates. The effectiveness of surfactant in prematurely born infants and nitric oxide has been robustly investigated. Other drugs are being used on very limited evidence.
May 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28270008/gene-delivery-to-the-lungs-pulmonary-gene-therapy-for-cystic-fibrosis
#19
Ilia Villate-Beitia, Jon Zarate, Gustavo Puras, José Luis Pedraz
Cystic fibrosis (CF) is a monogenic autosomal recessive disorder where the defective gene, the cystic fibrosis transmembrane conductance regulator (CFTR), is well identified. Moreover, the respiratory tract can be targeted through noninvasive aerosolized formulations for inhalation. Therefore, gene therapy is considered a plausible strategy to address this disease. Conventional gene therapy strategies rely on the addition of a correct copy of the CFTR gene into affected cells in order to restore the channel activity...
March 7, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28252674/micro-vapor-bubble-jet-flow-for-safe-and-high-rate-fluorescence-activated-cell-sorting
#20
Koen de Wijs, Chengxun Liu, Alexandra Dusa, Dries Vercruysse, Bivragh Majeed, Deniz Sabuncuoglu Tezcan, Kamil Blaszkiewicz, Josine Loo, Liesbet Lagae
Safe, high-rate and cost-effective cell sorting is important for clinical cell isolation. However, commercial fluorescence-activated cell sorters (FACS) are expensive and prone to aerosol-induced sample contamination. Here we report a microfluidic cell sorter allowing high rate and fully enclosed cell sorting. The sorter chip consists of an array of micro heating hotspots. Pulsed resistive heating in the hotspots produces numerous micro vapor bubbles with short duration, which gives rise to a rapid jet flow for cell sorting...
March 2, 2017: Lab on a Chip
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