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https://www.readbyqxmd.com/read/28546371/pediatric-aerosol-therapy
#1
Ariel Berlinski
Inhaled medications are the mainstay of therapy for many pediatric pulmonary diseases. Device and delivery technique selection is key to improving lung deposition of inhaled drugs. This paper will review the subject in relationship to several pediatric clinical situations: acute pediatric asthma, transnasal aerosol delivery, delivery through tracheostomies, and delivery during noninvasive and invasive mechanical ventilation. This review will focus on the pediatric age group and will not include neonates.
June 2017: Respiratory Care
https://www.readbyqxmd.com/read/28543283/targeting-pp2a-and-proteasome-activity-ameliorates-features-of-allergic-airway-disease-in-mice
#2
Prema M Nair, Malcolm R Starkey, Tatt Jhong Haw, Gang Liu, Jay C Horvat, Jonathan C Morris, Nikki M Verrills, Andrew R Clark, Alaina J Ammit, Philip M Hansbro
BACKGROUND: Asthma is an allergic airway disease (AAD) caused by aberrant immune responses to allergens. Protein phosphatase-2A (PP2A) is an abundant serine/threonine phosphatase with anti-inflammatory activity. The ubiquitin proteasome system (UPS) controls many cellular processes, including the initiation of inflammatory responses by protein degradation. We assessed if enhancing PP2A activity with Fingolimod (FTY720) or 2-amino-4-(4-(heptyloxy) phenyl)-2-methylbutan-1-ol (AAL(S) ), or inhibiting proteasome activity with Bortezomib (BORT) could suppress experimental AAD...
May 24, 2017: Allergy
https://www.readbyqxmd.com/read/28542337/changes-in-hospitalizations-for-chronic-respiratory-diseases-after-two-successive-smoking-bans-in-spain
#3
Iñaki Galán, Lorena Simón, Elena Boldo, Cristina Ortiz, Rafael Fernández-Cuenca, Cristina Linares, María José Medrano, Roberto Pastor-Barriuso
BACKGROUND: Existing evidence on the effects of smoke-free policies on respiratory diseases is scarce and inconclusive. Spain enacted two consecutive smoke-free regulations: a partial ban in 2006 and a comprehensive ban in 2011. We estimated their impact on hospital admissions via emergency departments for chronic obstructive pulmonary disease (COPD) and asthma. METHODS: Data for COPD (ICD-9 490-492, 494-496) came from 2003-2012 hospital admission records from the fourteen largest provinces of Spain and from five provinces for asthma (ICD-9 493)...
2017: PloS One
https://www.readbyqxmd.com/read/28535631/-a-multi-center-study-for-the-association-between-the-perception-and-control-of-disease-among-asthmatic-patients-in-chinese-urban-areas
#4
Y Nong, J T Lin, W Q Wang, X Zhou, C Z Wang, M Huang, S X Cai, P Chen, Q C Lin, J Y Zhou, Y H Gu, Y D Yuan, D J Sun, X H Yang, L Yang, J M Huo, Z C Chen, P Jiang, J Zhang, X W Ye, H G Liu, H P Tang, R Y Liu, C T Liu, W Zhang, C P Hu, Y Q Chen, X J Liu, L M Dai, W Zhou, Y J Huang, J Y Xu
Objective: To investigate the current perception of disease among asthmatic patients in Chinese urban areas, and to address its association with asthma control. Methods: This was a nationwide, multi-center, cross-sectional study covering 30 third-level, grade A hospitals in 30 provinces, municipalities and autonomous regions (not including Tibet) across Chinese mainland. The survey was carried out from October 2015 to May 2016. Asthmatic outpatients were selected to receive face-to-face questionnaire survey on asthma control including Asthma Control Test (ACT) score, classification of asthma control level[according to the Global Initiative for Asthma (GINA) 2015 classification system, as assessed by the physician completing the survey], perception of asthma (including question 1: nature of asthma as a disease; question 2: selection of first-line therapeutic agents to be regularly used daily for asthma; question 3: appropriate timing of the use of short-acting aerosols of β(2) receptor agonists; and question 4: therapeutic goals for asthma)...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28527922/bronchodilator-therapy-for-chronic-cough
#5
REVIEW
Maria Gabriella Matera, Paola Rogliani, Alessandro Zanasi, Mario Cazzola
Experimental studies indicate that airway calibre increases the sensitivity of the afferents involved in the cough reflex but it has proved difficult to demonstrate that airway calibre increases the sensitivity of the afferents involved in the cough reflex. Therefore, bronchodilators might have a role, although rather minor, in the treatment of cough. However, although bronchodilators represent the standard of care in the treatment of airway obstruction associated with asthma or COPD, controversy persists regarding the mechanism(s) by which these agents alleviate cough...
May 17, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28526598/breathe-easy-5-steps-to-better-breathing-with-your-metered-dose-inhaler-mdi
#6
Evan H Allie, Ellen B O'Kelley, Katie H Fischesser, Lawrence B Stack, Donald H Arnold
Proper use of the metered-dose inhaler (MDI) is essential for medications to prevent and treat acute asthma exacerbations. This training video teaches children and clinicians correct technique for MDI use.
May 13, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28526225/the-acute-response-to-interval-and-continuous-exercise-in-adults-with-confirmed-airway-hyper-responsiveness
#7
Carley O'Neill, Kirsten Burgomaster, Otto Sanchez, Shilpa Dogra
OBJECTIVES: To determine changes in lung function following an acute bout of high intensity interval exercise (HIIE), moderate intensity interval exercise (MIIE), and moderate intensity continuous exercise (MICE) in adults with airway hyper-responsiveness (AHR). DESIGN: A randomized cross-over design was used. METHODS: Participants completed five laboratory sessions: (1) eucapnic voluntary hyperpnea challenge (2) maximal exercise test to determine peak power output (PPO) and, (3-5) HIIE (90% PPO for 1min followed by 10% PPO for 1min, repeated 10 times), MIIE (65% PPO for 1min followed by 10% PPO for 1min, repeated 10 times) and MICE (65% PPO for 20min)...
April 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28526210/early-control-treatment-with-montelukast-in-preschool-children-with-asthma-a-randomized-controlled-trial
#8
Mizuho Nagao, Masanori Ikeda, Norimasa Fukuda, Chizu Habukawa, Tetsuro Kitamura, Toshio Katsunuma, Takao Fujisawa
BACKGROUND: While Japanese guideline recommends initial control treatment for preschool children with asthma symptoms more than once a month, Western guidelines do not. To determine whether control treatment with montelukast was more effective than as-needed β2-agonists in this population, we conducted a randomized controlled trial. METHODS: Eligible patients were children aged 1-5 years who had asthma symptoms more than once a month but less than once a week. Patients were randomly assigned in a 1:1 ratio to receive montelukast 4 mg daily for 48 weeks or as-needed β2-agonists...
May 16, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28524369/therapeutic-roles-of-telocytes-in-ova-induced-acute-asthma-in-mice
#9
Ling Ye, Dongli Song, Meiling Jin, Xiangdong Wang
Telocytes (TCs) newly discovered as the mesenchyme-derived interstitial cells were found to have supportive effects on mesenchymal stem cells (MSCs). The present study aimed at investigating effects of TCs or TCs gathered with MSCs on experimental airway inflammation and hyper-responsiveness. The TCs were isolated from the lung tissue of the female BALB/c mice. The ovalbumin (OVA)-induced asthma model was established. TCs (1 × 10(6) /2 × 10(6) ) and/or MSCs (1 × 10(6) ) were injected through mice tail vein for consecutive three days before OVA excited the mice...
May 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28523001/the-role-of-transient-receptor-potential-vanilloid-4-in-pulmonary-inflammatory-diseases
#10
REVIEW
Rachel G Scheraga, Brian D Southern, Lisa M Grove, Mitchell A Olman
Ion channels/pumps are essential regulators of organ homeostasis and disease. In the present review, we discuss the role of the mechanosensitive cation channel, transient receptor potential vanilloid 4 (TRPV4), in cytokine secretion and pulmonary inflammatory diseases such as asthma, cystic fibrosis (CF), and acute lung injury/acute respiratory distress syndrome (ARDS). TRPV4 has been shown to play a role in lung diseases associated with lung parenchymal stretch or stiffness. TRPV4 indirectly mediates hypotonicity-induced smooth muscle contraction and airway remodeling in asthma...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28515363/lung-cd103-dendritic-cells-restrain-allergic-airway-inflammation-through-il-12-production
#11
Laura Conejero, Sofía C Khouili, Sarai Martínez-Cano, Helena M Izquierdo, Paola Brandi, David Sancho
DCs are necessary and sufficient for induction of allergic airway inflammation. CD11b+ DCs direct the underlying Th2 immunity, but debate surrounds the function of CD103+ DCs in lung immunity and asthma after an allergic challenge. We challenged Batf3-/- mice, which lacked lung CD103+ DCs, with the relevant allergen house dust mite (HDM) as a model to ascertain their role in asthma. We show that acute and chronic HDM exposure leads to defective Th1 immunity in Batf3-deficient mice. In addition, chronic HDM challenge in Batf3-/- mice results in increased Th2 and Th17 immune responses and exacerbated airway inflammation...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28506902/ski3301-a-purified-herbal-extract-from-sophora-tonkinensis-inhibited-airway-inflammation-and-bronchospasm-in-allergic-asthma-animal-models-in-vivo
#12
Hunseung Yoo, Minseok Kang, Sungsoo Pyo, Hee-Sung Chae, Keun Ho Ryu, Jinwoong Kim, Young-Won Chin
ETHNOPHARMACOLOGICAL RELEVANCE: Sophora tonkinensis (Leguminosae, ST) is a traditional herbal plant in Korea and China. Its roots and rhizomes have been used to dissipate heat, to clear toxic material and to treat acute pharyngolaryngeal infections and sore throats. AIM OF STUDY: In this study, we tried to investigate the anti-inflammatory and anti-asthmatic effects of a purified extract (SKI3301) from Sophora tonkinensis using in vitro enzyme assay models and ovalbumin (OVA)-induced asthma animal models...
May 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28506728/-the-effects-of-inhaled-steroids-withdrawal-in-copd
#13
G Jebrak, I Honore, P Serrier, J Dumoulin, P Terrioux, F Soyez, C Maurer, G Mangiapan, M Febvre, L-J Couderc, J-M Braun, T Chinet
The key pathophysiological feature of chronic obstructive pulmonary disease (COPD) is an abnormal inflammatory bronchial reaction after inhalation of toxic substances. The priority is the avoidance of such toxic inhalations, but the use of anti-inflammatory drugs also seems appropriate, especially corticosteroids that are the sole anti-inflammatory drug available for this purpose in France. The risks associated with the prolonged use of these parenteral drugs are well known. Inhalation is therefore the optimal route, but inhaled drugs may also lead to adverse consequences...
May 12, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28505409/human-asthmatic-bronchial-cells-are-more-susceptible-to-sub-chronic-repeated-exposures-of-aerosolized-carbon-nanotubes-at-occupationally-relevant-doses-than-healthy-cells
#14
Savvina Chortarea, Hana Barosova, Martin James David Clift, Peter Wick, Alke Petri-Fink, Barbara Rothen-Rutishauser
Although acute pulmonary toxicity of carbon nanotubes (CNTs) has been extensively investigated, the knowledge of potential health effects following chronic occupational exposure is currently limited and based only upon in vivo approaches. Our aim was to realistically mimic sub-chronic inhalation of multi-walled CNTs (MWCNTs) in vitro, using the Air-Liquid Interface Cell Exposure system (ALICE) for aerosol exposures onto reconstituted human bronchial tissue from healthy and asthmatic donors. The reliability and sensitivity of the system was validated using crystalline quartz (DQ12), which elicited an increased (pro-)inflammatory response, as reported in vivo...
May 15, 2017: ACS Nano
https://www.readbyqxmd.com/read/28502841/use-of-airway-epithelial-cell-culture-to-unravel-the-pathogenesis-and-study-treatment-in-obstructive-airway-diseases
#15
REVIEW
Tinne C J Mertens, Harry Karmouty-Quintana, Christian Taube, Pieter S Hiemstra
Asthma and chronic obstructive pulmonary disease (COPD) are considered as two distinct obstructive diseases. Both chronic diseases share a component of airway epithelial dysfunction. The airway epithelium is localized to deal with inhaled substances, and functions as a barrier preventing penetration of such substances into the body. In addition, the epithelium is involved in the regulation of both innate and adaptive immune responses following inhalation of particles, allergens and pathogens. Through triggering and inducing immune responses, airway epithelial cells contribute to the pathogenesis of both asthma and COPD...
May 11, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28502415/effects-of-acute-psychological-stress-induced-in-laboratory-on-physiological-responses-in-asthma-populations-a-systematic-review
#16
REVIEW
Annik Plourde, Kim L Lavoie, Candace Raddatz, Simon L Bacon
BACKGROUND: Psychological stress has long been suspected to have a deleterious effect on asthma, with acute psychological stress being associated with physiological responses in asthma patients. OBJECTIVES: The purpose of this systematic review was to provide a narrative synthesis of the impact of acute laboratory psychological stress on physiological responses among asthma patients. METHODS: An extensive search was conducted by two independent authors using Pubmed, PsycINFO, PsyArticles and the Cochrane Library electronic databases (up to September 2016)...
June 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28500974/ongoing-developments-in-rsv-prophylaxis-a-clinician-s-analysis
#17
REVIEW
Fariba Rezaee, Debra T Linfield, Terri J Harford, Giovanni Piedimonte
Respiratory syncytial virus (RSV) is the most common respiratory pathogen in infants and young children worldwide. Lower respiratory tract infection due to RSV is one of the most common causes of hospitalization for infants, especially those born premature or with chronic lung or heart disease. Furthermore, RSV infection is an important cause of morbidity in adults, particularly in the elderly and immunocompromised individuals. The acute phase of this infection is often followed by episodes of wheezing that recur for months or years and usually lead to a physician diagnosis of asthma...
May 10, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28500687/epidemiological-analysis-and-follow-up-of-human-rhinovirus-infection-in-children-with-asthma-exacerbation
#18
Shou-Yan Zheng, Li-Li Wang, Luo Ren, Jian Luo, Wei Liao, En-Mei Liu
To determine the prevalence of human rhinovirus (HRV) infection in children with acute asthma exacerbations, investigation of HRV viral load and severity of asthma exacerbations is also required. Nasopharyngeal aspirates and swabs were collected and assessed for respiratory viruses. HRV-positive samples were sequenced to identify types and determine viral load. Outpatients with asthma exacerbations underwent follow-up evaluations, their swabs were collected and clinical outcomes were recorded at their next clinic visit 4 weeks later...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28497854/allergic-sinusitis-and-severe-asthma-caused-by-occupational-exposure-to-locust-bean-gum-case-report
#19
Brie Hawley, Kristin J Cummings, Mohammed Mohammed, Anne E Dimmock, Rebecca Bascom
We present a case that highlights the difficulties with diagnosis and the dangers of occupational allergic sinusitis and asthma left unrecognized. We describe the case history of a man who experienced work-related symptoms 1 year after beginning work as a cheesemaker at a creamery, and whose respiratory symptoms progressively worsened over 16 years before an occupational cause of his asthma was identified. His initial discrete episodes of sinusitis and acute bronchitis evolved into persistent asthma of increasing severity with exacerbations requiring repeated emergency room treatment...
May 12, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28487836/allergic-conjunctivitis-in-asia
#20
REVIEW
Bernard Yu-Hor Thong
Allergic conjunctivitis (AC), which may be acute or chronic, is associated with rhinitis in 30%-70% of affected individuals, hence the term allergic rhinoconjunctivitis (AR/C). Seasonal and perennial AC is generally milder than the more chronic and persistent atopic and vernal keratoconjunctivitis. Natural allergens like house dust mites (HDM), temperate and subtropical grass and tree pollen are important triggers that drive allergic inflammation in AC in the Asia-Pacific region. Climate change, environmental tobacco smoke, pollutants derived from fuel combustion, Asian dust storms originating from central/north Asia and phthalates may also exacerbate AR/C...
April 2017: Asia Pacific Allergy
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