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https://www.readbyqxmd.com/read/28434254/association-of-gstt1-null-xpd-751%C3%A2-cc-and-xpc-939%C3%A2-cc-genotypes-with-increased-levels-of-genomic-damage-among-hospital-pathologists
#1
Alfredo Santovito, Marta Delsoglio, Eleonora Manitta, Giulia Picco, Giulia Meschiati, Michela Chiarizio, Claudio Gendusa, Piero Cervella
CONTEXT: Hospital workers are at risk for genotoxic damage following occupationally exposure to xenobiotics. Pathologists are exposed to chemicals during their use in health care environments, particularly throughout inhalation of airborne agents, absorption through skin or contact with the patient's body fluids. OBJECTIVE: We evaluated the level of genomic damage in a sample of 61 hospital pathologists (occupationally exposed to antineoplastic drugs and sterilizing agents) and 60 control subjects...
April 24, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28431005/occupational-asthma-caused-by-acrylic-compounds-from-shield-surveillance-1989-2014
#2
G I Walters, A S Robertson, V C Moore, P S Burge
Background: Acrylic monomers (acrylates), methacrylates and cyanoacrylates all cause asthma by respiratory sensitization. Occupational inhalation exposures occur across a variety of industries including health care and dental work, beauty, laboratory science, assembly and plastic moulding. Aims: To examine notifications of occupational asthma caused by acrylic compounds from a UK-based regional surveillance scheme, in order to highlight prevalent exposures and trends in presentation...
April 20, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28420285/dry-powders-for-the-inhalation-of-ciprofloxacin-or-levofloxacin-combined-with-a-mucolytic-agent-for-cystic-fibrosis-patients
#3
Yagmur Akdag Cayli, Selma Sahin, Francesca Buttini, Anna Giulia Balducci, Serena Montanari, Imran Vural, Levent Oner
OBJECTIVE: This study aimed to design and characterize an inhalable dry powder of ciprofloxacin or levofloxacin combined with the mucolytics acetylcysteine and dornase alfa for the management of pulmonary infections in patients with cystic fibrosis. METHODS: Ball milling, homogenization in isopropyl alcohol, and spray drying processes were used to prepare dry powders for inhalation. Physico-chemical characteristics of the dry powders were assessed via thermogravimetric analysis, differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometry, and scanning electron microscopy...
April 19, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28418689/an-official-american-thoracic-society-workshop-report-chemical-inhalational-disasters-biology-of-lung-injury-development-of-novel-therapeutics-and-medical-preparedness
#4
Eleanor M Summerhill, Gary W Hoyle, Sven-Eric Jordt, Bronwen J Jugg, James G Martin, Sadis Matalon, Steven E Patterson, David J Prezant, Alfred M Sciuto, Erik R Svendsen, Carl W White, Livia A Veress
This report is based upon the proceedings from the Inhalational Lung Injury Workshop jointly sponsored by the American Thoracic Society (ATS) and the National Institute of Health (NIH)/National Institute of Neurologic Disorders and Stroke (NINDS) Countermeasures Against Chemical Threats (CounterACT) program on May 21, 2013 in Philadelphia, PA. The CounterACT program facilitates research leading to the development of new and improved medical countermeasures for chemical threat agents. The workshop was initiated by the Terrorism and Inhalational Disasters (TID) Section of the Environmental, Occupational, and Population Health Assembly (EOPH) of the ATS...
April 18, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28404553/airway-emergencies-presenting-to-the-paediatric-emergency-department-requiring-advanced-management-techniques
#5
Leopold Simma, Domenic Cincotta, Stefan Sabato, Elliot Long
BACKGROUND: Airway emergencies presenting to the emergency department (ED) are usually managed with conventional equipment and techniques. The patient group managed urgently in the operating room (OR) has not been described. AIMS: This study aims to describe a case series of children presenting to the ED with airway emergencies managed urgently in the OR, particularly the anaesthetic equipment and techniques used and airway findings. METHODS: A retrospective cohort study undertaken at The Royal Children's Hospital, Melbourne, Australia...
April 12, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28402575/impaired-proliferation-and-differentiation-of-the-conducting-airway-epithelium-associated-with-bronchiolitis-obliterans-after-sulfur-mustard-inhalation-injury-in-rats
#6
Matthew D McGraw, Jaqueline S Rioux, Rhonda B Garlick, Raymond C Rancourt, Carl W White, Livia A Veress
RationaleSulfur mustard (SM) is a chemical warfare agent that causes chronic airway remodeling. The current study's objective was to assess for changes to the bronchiolar epithelium after SM exposure to explain its contribution to chronic airway remodeling.Materials and MethodsAdult male rats were exposed to a sub-lethal dose of SM inhalation (1.0 - 1.2 mg/kg) for 50 minutes. Histological sections of the bronchiolar epithelium were analyzed for changes using H&E, trichrome, and immunofluorescent staining for acetylated tubulin (AT) and club cell secretory protein (CCSP)...
April 11, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28399721/the-prostacyclin-pathway-in-pulmonary-arterial-hypertension-a-clinical-review
#7
R Del Pozo, I Hernandez Gonzalez, P Escribano-Subias
Prostacyclin is produced in vascular endothelial cells and acts via the IP prostacyclin receptor to cause vasodilation and inhibit smooth muscle cell proliferation and platelet aggregation. Prostacyclin production is reduced in pulmonary arterial hypertension (PAH), and drugs targeting the prostacyclin pathway are one of the pharmacotherapeutic options for PAH. Areas covered: The prostacyclin pathway and drugs that target it are discussed, including synthetic prostacyclin (epoprostenol), prostacyclin analogs (iloprost, treprostinil, beraprost) and selective prostacyclin IP receptor agonists (selexipag)...
April 24, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28397992/mucoactive-agents-for-chronic-non-cystic-fibrosis-lung-disease-a-systematic-review-and-meta-analysis
#8
REVIEW
Benjamin J Tarrant, Caitlin Le Maitre, Lorena Romero, Ranjana Steward, Brenda M Button, Bruce R Thompson, Anne E Holland
Inhaled mucoactive agents are used in respiratory disease to improve mucus properties and enhance secretion clearance. The effect of mannitol, recombinant human deoxyribonuclease/dornase alfa (rhDNase) and hypertonic saline (HS) or normal saline (NS) are not well described in chronic lung conditions other than cystic fibrosis (CF). The aim of this review was to determine the benefit and safety of inhaled mucoactive agents outside of CF. We searched Medline, Embase, CINAHL and CENTRAL for randomized controlled trials investigating the effects of mucoactive agents on lung function, adverse events (AEs), health-related quality of life (HRQOL), hospitalization, length of stay, exacerbations, sputum clearance and inflammation...
April 11, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28395926/do-inhaled-anticholinergic-agents-in-addition-to-%C3%AE-agonists-improve-outcomes-in-acute-asthma-exacerbations
#9
EDITORIAL
Michael Gottlieb, Matthew J Kuhns
No abstract text is available yet for this article.
April 7, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28395575/safety-of-inhaled-long-acting-anti-muscarinic-agents-in-copd
#10
Nicola A Hanania, Suzanne C Lareau, Barbara P Yawn
Evidence-based guidelines recommend inhaled long-acting anti-muscarinic agents (LAMAs) as first-line maintenance therapy for symptomatic patients with COPD. Several LAMAs are now available for use either as monotherapy or in combination with other COPD medications, including long-acting β2-agonists (LABAs) or inhaled corticosteroids (ICS). The efficacy and long-term safety of these medications have been evaluated in multiple clinical trials and real-life studies. This review evaluates the evidence available on the safety of existing LAMAs alone or in combination with LABAs and ICS in patients with COPD...
April 20, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28390999/measuring-nitrate-reductase-activity-from-human-and-rodent-tongues
#11
Khandaker A Ahmed, Alexandria L Nichols, Jaideep Honavar, Mark T Dransfield, Sadis Matalon, Rakesh P Patel
Reduction of salivary nitrate to nitrite by oral microbes expressing nitrate-reductase has emerged as a crucial pathway in systemic NO homeostasis in humans and other mammals. Selective depletion of oral microbes prevents dietary nitrate-dependent lowering of blood pressure, inhibition of platelet aggregation and ischemic injury. To date, most studies interrogate enterosalivary nitrate reduction by following changes in saliva or plasma nitrite and NO-signaling (functional) end points. Little is known about whether, and if so how, nitrate-reductase enzymatic activity per se (i...
June 1, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28389379/exposure-to-welding-fumes-activates-dna-damage-response-and-redox-sensitive-transcription-factor-signalling-in-sprague-dawley-rats
#12
Jayaraman Krishnaraj, Jaganathan Kowshik, Robin Sebastian, Sathees C Raghavan, Siddavaram Nagini
BACKGROUND: Occupational exposure to welding fumes containing a complex mixture of genotoxic heavy metals, radiation, gases and nanoparticles poses a serious health hazard to welders. Since their categorization as possible carcinogens, welding fumes have gained increasing attention as high priority agents for risk assessment. OBJECTIVE: The present study was undertaken to investigate the effects of welding fume inhalation on oxidative stress, DNA damage response (DDR), and nuclear factor erythroid 2-related factor-2 (Nrf2) and nuclear factor kappa B (NFκB) signalling in the lung tissues of male Sprague-Dawley rats...
April 5, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28387160/long-term-treatment-in-pediatric-asthma-an-update-on-chemical-pharmacotherapy
#13
Carolina Vitale, Angelantonio Maglio, Corrado Pelaia, Alessandro Vatrella
Asthma is the most common chronic disease in childhood, affecting approximately 10% of all children, and is the leading cause of hospitalization in developed countries. In this paper we aimed to review the evidence on chemical pharmacotherapy for long-term treatment of pediatric asthma, according to the latest updates. Area covered: Long-term treatment, essential for controlling symptoms and reducing future risks including exacerbations and decline in lung function, includes control agents such as inhaled corticosteroids, long-acting beta2-adrenergic agonists, and leukotriene modifiers...
May 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28379903/inhaled-insulin-a-clinical-and-historical-review
#14
Jason Chan, Angela Cheng-Lai
Insulin is the most effective blood glucose lowering agent and remains one of the cornerstones of diabetes management. However, many individuals with diabetes are either reluctant to initiate or are nonadherent to their insulin therapy for various reasons, including fear of frequent injections. Technosphere Insulin (TI) is a novel inhaled insulin powder that is approved by the United States Food and Drug Administration for the management of diabetes. The results from 2 phase III clinical trials have shown that TI was noninferior to subcutaneous insulin aspart and superior to inhaled placebo in lowering HbA1c in patients with diabetes mellitus types 1 and 2, respectively...
May 2017: Cardiology in Review
https://www.readbyqxmd.com/read/28378587/inhalable-andrographolide-%C3%AE-cyclodextrin-inclusion-complexes-for-treatment-of-staphylococcus-aureus-pneumonia-by-regulating-immune-responses
#15
Tongtong Zhang, Lifei Zhu, Miao Li, Yuzhen Hu, Erfeng Zhang, Qingcheng Jiang, Guang Han, Yiguang Jin
Bacterial pneumonia is a serious disease with high mortality if no appropriate and immediate therapy is available. Andrographolide (AG) is an anti-inflammatory agent extracted from a traditional Chinese herb andrographis paniculata. Oral AG tablets and pills are clinically applied for treatment of upper respiratory tract infections. However, the low solubility and bioavailability of AG lead to high doses and long-term therapy. Here we developed an andrographolide-β-cyclodextrin inclusion complex (AG-β-CD) for inhalation therapy of Staphylococcus aureus pneumonia...
April 5, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28377314/clarithromycin-and-n-acetylcysteine-co-spray-dried-powders-for-pulmonary-drug-delivery-a-focus-on-drug-solubility
#16
Michele Dario Manniello, Pasquale Del Gaudio, Rita P Aquino, Paola Russo
Cystic fibrosis (CF) lungs are usually susceptible to Pseudomonas aeruginosa colonization and this bacterium is resistant to immune system clearance and drug control. Particularly, the biofilm mode of growth protects several microorganisms from host defenses and antibacterial drugs, mainly due to a delayed penetration of the drug through the biofilm matrix. Biofilm, together with lung mucus viscosity and tenacity, reduces, therefore, the effectiveness of conventional antibiotic therapy in CF. The aim of this research was to design and develop a stable, portable, easy to use dry powder inhaler (DPI) for CF patients, able to release directly to the lung an association of macrolide antibiotics (clarithromycin) and a mucolytic agent (N-Acetyl-Cysteine)...
April 1, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28370783/coal-mine-dust-lung-disease-in-the-modern-era
#17
REVIEW
Jennifer L Perret, Brian Plush, Philippe Lachapelle, Timothy S C Hinks, Clare Walter, Philip Clarke, Louis Irving, Pat Brady, Shyamali C Dharmage, Alastair Stewart
Coal workers' pneumoconiosis (CWP), as part of the spectrum of coal mine dust lung disease (CMDLD), is a preventable but incurable lung disease that can be complicated by respiratory failure and death. Recent increases in coal production from the financial incentive of economic growth lead to higher respirable coal and quartz dust levels, often associated with mechanization of longwall coal mining. In Australia, the observed increase in the number of new CWP diagnoses since the year 2000 has necessitated a review of recommended respirable dust exposure limits, where exposure limits and monitoring protocols should ideally be standardized...
May 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28366158/-new-bronchodilators-and-combinations-in-copd-treatment
#18
Sibel Günay, Muzaffer Sarıaydın, Nilgün Yılmaz Demirci
Bronchodilator drugs are widely used therapeutic agents for treatment of asthma and chronic obstructive pulmonary disease (COPD). In order to mantain bronchodilation, both sympathetic system (particularly beta-2 receptors) activation and parasympathetic system inhibition (antimuscarinic effect) mechanisms are utilized. Over 20 years, there were no significant changes in bronchodilator therapy in obstructive pulmonary diseases. In recent years, however, after the development of new ultra long acting bronchodilator drugs, a single dose inhaler treatments per day in the treatment of stable COPD became a current issue...
September 2016: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/28362360/a-risk-assessment-matrix-for-public-health-principles-the-case-for-e-cigarettes
#19
Daniela Saitta, Azim Chowdhury, Giancarlo Antonio Ferro, Federico Giuseppe Nalis, Riccardo Polosa
Besides nicotine replacement therapies, a realistic alternative for smoking cessation or for smoking substitution may come from electronic cigarettes (ECs), whose popularity has been steadily growing. As for any emerging behaviour associated with exposure to inhalational agents, there is legitimate cause for concern and many health organizations and policy makers have pushed for restrictive policy measures ranging from complete bans to tight regulations of these products. Nonetheless, it is important to reframe these concerns in context of the well-known harm caused by cigarette smoking...
March 31, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28356227/production-and-characterization-of-a-pegylated-derivative-of-recombinant-human-deoxyribonuclease-i-for-cystic-fibrosis-therapy
#20
Marie-Julie Guichard, Harshad P Patil, Salome Juliette Koussoroplis, Ruddy Wattiez, Teresinha Leal, Rita Vanbever
Recombinant human deoxyribonuclease I (rhDNase) is the mucolytic agent most widely used for the treatment of respiratory disease in cystic fibrosis. However, rhDNase is rapidly cleared from the lungs which implies a high dosing frequency and limited patient adherence. The aim of this study was to produce a long-acting PEGylated derivative of rhDNase presenting a preserved enzymatic activity. Site-specific PEGylation on the N-terminal (N-ter) leucine residue of rhDNase was achieved by reductive alkylation at acidic pH using linear 20kDa, linear 30kDa or two-arm 40kDa polyethylene glycol (PEG) propionaldehydes...
March 27, 2017: International Journal of Pharmaceutics
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