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Leukotriene antagonists

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https://www.readbyqxmd.com/read/28208913/eosinophilic-granulomatosis-with-polyangiitis-egpa-and-hepatitis-b-infection-a-rare-association
#1
Nidhi Kaeley, Narula Kamakshi
Eosinophilic Granulomatosis with Polyangiitis (EGPA) or Churg-Strauss syndrome is a rare systemic illness which is characterized by necrotizing inflammation of small and medium sized vessels. The prominent features include asthma, eosinophilia, transient pulmonary infiltration and systemic vasculitis. Various triggering factors have been reported as putative aetiological agents of Churg-Strauss syndrome. They include infections, allergic desensitization, vaccinations like hepatitis B and influenza vaccination, cocaine abuse, drugs like leukotriene receptor antagonists and exposure to pigeons...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28196638/japanese-guidelines-for-adult-asthma-2017
#2
REVIEW
Masakazu Ichinose, Hisatoshi Sugiura, Hiroyuki Nagase, Masao Yamaguchi, Hiromasa Inoue, Hironori Sagara, Jun Tamaoki, Yuji Tohda, Mitsuru Munakata, Kohei Yamauchi, Ken Ohta
Adult bronchial asthma is characterized by chronic airway inflammation, and presents clinically with variable airway narrowing (wheezes and dyspnea) and cough. Long-standing asthma induces airway remodeling, leading to intractable asthma. The number of patients with asthma has increased; however, the number of patients who die of asthma has decreased (1.2 per 100,000 patients in 2015). The goal of asthma treatment is to enable patients with asthma to attain normal pulmonary function and lead a normal life, without any symptoms...
February 11, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28157474/factors-impacting-asthma-control-in-children-in-a-low-to-middle-income-country-setting-a-retrospective-study
#3
K A Monene, R Masekela
OBJECTIVES: 1) To assess asthma control and its evolution over time among children in a low-to-middle-income country, and 2) to explore whether demographics, type of asthma medication, comorbidities or exacerbations impact asthma control. METHODS: In a retrospective study in children with asthma aged 6-18 years conducted between 2005 and 2010, we collected clinical and demographic data and used Global Initiative for Asthma (GINA) criteria to assess asthma control...
January 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28154801/pranlukast-reduces-asthma-exacerbations-during-autumn-especially-in-1-to-5-year-old-boys
#4
Yoshinori Morita, Eduardo Campos Alberto, Shuichi Suzuki, Yoshinori Sato, Akira Hoshioka, Hiroki Abe, Kimiyuki Saito, Toshikazu Tsubaki, Mana Haraki, Akiko Sawa, Yoshio Nakayama, Hiroyuki Kojima, Midori Shigeta, Fumiya Yamaide, Yoichi Kohno, Naoki Shimojo
BACKGROUND: Leukotriene receptor antagonists have been used to prevent virus-induced asthma exacerbations in autumn. Its efficacy, however, might differ with age and sex. OBJECTIVE: This study aimed to investigate whether pranlukast added to usual asthma therapy in Japanese children during autumn, season associated with the peak of asthma, reduces asthma exacerbations. It was also evaluated the effect of age and sex on pranlukast's efficacy. METHODS: A total of 121 asthmatic children aged 1 to 14 years were randomly assigned to receive regular pranlukast or not according to sex, and were divided in 2 age groups, 1-5 years and 6-14 years...
January 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28152126/sinonasal-quality-of-life-in-children-after-outfracture-of-inferior-turbinates-and-submucous-inferior-turbinoplasty-for-chronic-nasal-congestion
#5
Brian Manzi, Kevin J Sykes, Julie L Wei
Importance: Chronic nasal congestion often persists in children despite empirical treatment using intranasal corticosteroids, systemic antihistamines, and/or leukotriene receptor antagonists. Symptoms are often reported even with negative results of skin or blood allergy testing. Inferior turbinoplasty has been effective in adults and children, but outfracture of inferior turbinates in children is rarely reported, as is use of validated quality-of-life measures to quantify improvements after intervention...
February 2, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28139852/eosinophil-transendothelial-migration-induced-by-the-bronchoalveolar-lavage-fluid-of-acute-eosinophilic-pneumonia
#6
Kazuyuki Nakagome, Hisakazu Shoda, Tetsu Shirai, Fuyumi Nishihara, Tomoyuki Soma, Yoshitaka Uchida, Yoshio Sakamoto, Makoto Nagata
BACKGROUND AND OBJECTIVE: Acute eosinophilic pneumonia (AEP) is characterized by a massive pulmonary infiltration of eosinophils. Mechanisms regulating the selective accumulation of eosinophils in AEP have not been fully established. The objective of this study was to evaluate the mechanisms of eosinophil accumulation in alveolar spaces through examination of bronchoalveolar lavage fluid (BALF) from AEP patients (AEP-BALF). METHODS: Eosinophils were isolated from the blood of healthy subjects and were placed on a human pulmonary microvascular endothelial cell monolayer cultured on Transwell filters (Coster, Cambridge, MA, USA)...
January 31, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28119312/stoppfrail-screening-tool-of-older-persons-prescriptions-in-frail-adults-with-limited-life-expectancy-consensus-validation
#7
Amanda Hanora Lavan, Paul Gallagher, Carole Parsons, Denis O'Mahony
OBJECTIVE: to validate STOPPFrail, a list of explicit criteria for potentially inappropriate medication (PIM) use in frail older adults with limited life expectancy. DESIGN: a Delphi consensus survey of an expert panel comprising academic geriatricians, clinical pharmacologists, palliative care physicians, old age psychiatrists, general practitioners and clinical pharmacists. SETTING: Ireland. SUBJECTS: seventeen panellists...
January 23, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28115217/cysteinyl-leukotriene-e4-activates-human-ilc2s-and-enhances-the-effect-of-prostaglandin-d2-and-epithelial-cytokines
#8
Maryam Salimi, Linda Stöger, Wei Liu, Simei Go, Ian Pavord, Paul Klenerman, Graham Ogg, Luzheng Xue
BACKGROUND: Group 2 innate lymphoid cells (ILC2) are a potential innate source of type-2 cytokines in the pathogenesis of allergic conditions. Epithelial cytokines (IL-33, IL-25 and TSLP) and mast cell mediators (PGD2) are critical activators of ILC2s. Cysteinyl leukotrienes (cysLTs) including leukotriene C4 (LTC4), D4 and E4 are metabolites of arachidonic acid and mediate inflammatory responses. Their role in human ILC2s is still poorly understood. OBJECTIVES: We sought to determine the role of cysLTs and their relationship with other ILC2 stimulators in the activation of human ILC2s...
January 20, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28109729/comparison-of-the-effects-of-nasal-steroids-and-montelukast-on-olfactory-functions-in-patients-with-allergic-rhinitis
#9
A Dalgic, M E Dinc, S Ulusoy, D Dizdar, A Is, M Topak
OBJECTIVE: Olfactory dysfunction is one of the comorbidities associated with allergic rhinitis (AR) and AR is one of the common causes of olfactory problems. We aimed to evaluate by the Sniffin' Sticks test the effects on olfactory functions of nasal steroids and leukotriene antagonists used for allergic rhinitis. METHODS: Thirty patients with seasonal rhinitis were included in this study. Patients were randomly divided into three groups of 10 patients; group 1 received montelukast sodium and mometasone furoate (MF) therapy, group 2 received only montelukast, and group 3 only MF...
January 18, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28108245/japanese-guidelines-for-childhood-asthma-2017
#10
REVIEW
Hirokazu Arakawa, Yuhei Hamasaki, Yoichi Kohno, Motohiro Ebisawa, Naomi Kondo, Sankei Nishima, Toshiyuki Nishimuta, Akihiro Morikawa
The Japanese Guideline for the Diagnosis and Treatment of Allergic Diseases 2017 (JAGL 2017) includes a minor revision of the Japanese Pediatric Guideline for the Treatment and Management of Asthma 2012 (JPGL 2012) by the Japanese Society of Pediatric Allergy and Clinical Immunology. The section on child asthma in JAGL 2017 provides information on how to diagnose asthma between infancy and adolescence (0-15 years of age). It makes recommendations for best practices in the management of childhood asthma, including management of acute exacerbations and non-pharmacological and pharmacological management...
January 18, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28099820/new-and-developing-non-adrenoreceptor-small-molecule-drugs-for-the-treatment-of-asthma
#11
Neil C Thomson
Inhaled corticosteroids (ICS) alone or in combination with an inhaled long-acting beta2-agonist (LABA) are the preferred long-term treatment for adults and adolescents with symptomatic asthma. Additional drugs include leukotriene-receptor antagonists, slow-release theophylline and the long-acting muscarinic antagonist (LAMA) tiotropium (approved in 2015). There is a need for more effective therapies, as many patients continue to have poorly controlled asthma. Areas covered: New and developing long-acting non-adrenoreceptor synthetic drugs for the treatment of symptomatic chronic asthma despite treatment with an ICS alone or combined with a LABA...
February 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28098359/m2-like-macrophages-induce-colon-cancer-cell-invasion-via-matrix-metalloproteinases
#12
Katyayni Vinnakota, Yuan Zhang, Benson Chellakkan Selvanesan, Geriolda Topi, Tavga Salim, Janna Sand-Dejmek, Gunilla Jönsson, Anita Sjölander
The inflammatory milieu plays an important role in colon cancer development and progression. Previously, we have shown that tumor-associated macrophages (TAMs), an important component of the tumor microenvironment, are enriched in tumors compared with normal tissue and confer a poorer prognosis. In the present study, we found that matrix metallopeptidase-9 (MMP-9), which degrades extracellular matrix proteins, was increased in biopsies from colon cancer patients and in mouse xenografts with SW480 cell-derived tumors...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28092287/current-and-future-management-of-the-young-child-with-early-onset-wheezing
#13
Allison J Burbank, Stanley J Szefler
PURPOSE OF REVIEW: In this review, we discuss current thinking in relation to available guidelines for the care of preschool-aged children with recurrent wheezing, while highlighting the gaps in our knowledge and discussing changes that could occur over the next 5 years. RECENT FINDINGS: The Asthma Predictive Index as well as allergen-specific IgE, peripheral eosinophil count and exhaled nitric oxide are perhaps underutilized sources of information that can assist in predicting progression to asthma and response to therapies...
January 13, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28088523/the-selective-cysteinyl-leukotriene-receptor-1-cyslt1r-antagonist-montelukast-regulates-extracellular-matrix-remodeling
#14
Jingli Peng, Hezheng Zhou, Guoping Kuang, Lilian Xie, Tao Tian, Ru Liu
Scar formation after filtration surgery of glaucoma is mainly caused by excessive synthesis of new extracellular matrix (ECM) and contraction of subconjunctival tissue mediated by human Tenon fibroblasts (HTFs) and the transforming growth factor (TGF-β1). Montelukast, a potent and specific cysteinyl leukotriene receptor 1 (cysLT1R) antagonist, is a licensed drug clinically used for the treatment of bronchial asthma. In this study, we investigated the effects of montelukast on the contractility of HTFs cultured in a three-dimensional collagen gel...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28087482/prolonged-acute-suppression-of-cysteinyl-leukotriene-to-reduce-capsular-contracture-around-silicone-implants
#15
Byung Hwi Kim, Min Park, Hyo Jin Park, Seung Ho Lee, Sung Yoon Choi, Chun Gwon Park, Su Min Han, Chan Yeong Heo, Young Bin Choy
: We hypothesize that periodically early, local suppression of cysteinyl leukotrienes (CysLTs), which are potent inflammatory mediators, can reduce the fibrotic capsular contracture around silicone implants. We tested this hypothesis with the silicone implants enabled with the sustained release of montelukast, a CysLT receptor antagonist, for 3 and 15days. In this work, we inserted each of the distinct implants into the pocket of the subpanniculus carnosus plane of living rats and performed histological and immunofluorescent (IF) analyses of the tissues biopsied at predetermined periods for 12weeks after implant insertion...
January 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28077599/blt1-mediates-bleomycin-induced-lung-fibrosis-independently-of-neutrophils-and-cd4-t-cells
#16
Jiaoyan Lv, Yingluo Xiong, Wenjing Li, Wei Yang, Lina Zhao, Rui He
Leukotriene B4 (LTB4) and its functional receptor BLT1 are closely involved in tissue inflammation by primarily mediating leukocyte recruitment and activation. Elevated LTB4 was reported in patients with lung fibrosis; however, the role of the LTB4/BLT1 axis in lung fibrosis remains unknown. In this study, we demonstrated that BLT1(-/-) mice exhibited significantly attenuated bleomycin (BLM)-induced lung fibrosis. Interestingly, BLT1 blockade with its specific antagonist U75302 in the acute injury phase (days 0-10 after BLM treatment) significantly attenuated lung fibrosis, which was accompanied by significant decreases in early infiltrating neutrophils and later infiltrating CD4(+) T cells and the production of TGF-β, IL-13, and IL-17A...
January 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28073701/effect-of-asthma-therapies-on-the-natural-course-of-asthma
#17
REVIEW
Elissa M Abrams, Stanley J Szefler, Allan B Becker
OBJECTIVE: To provide an evidence-based review on the role of pharmacologic (inhaled corticosteroids, leukotriene receptor antagonists, biologic therapies, aeroallergen immunotherapy) and nonpharmacologic therapies (environmental modifications, microbiome) in secondary and tertiary asthma prevention. DATA SOURCES: A PubMed search for English-language publications regarding asthma and secondary or tertiary prevention was performed. Some articles cited in selected studies were also considered for inclusion in this review...
December 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28066101/comparison-of-efficacy-safety-and-cost-effectiveness-of-montelukast-levocetirizine-and-montelukast-fexofenadine-in-patients-of-allergic-rhinitis-a-randomized-double-blind-clinical-trial
#18
Mohini Sachin Mahatme, Ganesh Natthuji Dakhale, Kanchan Tadke, Sachin Keshaorao Hiware, S D Dudhgaonkar, Sumit Wankhede
OBJECTIVES: Allergic rhinitis (AR) is a global health problem. Almost 10%-25% of population worldwide is affected by AR. Oral/intranasal H1-antihistamine, decongestants, leukotriene receptor antagonists, and intranasal corticosteroids are the pillars in the management of AR. The combination therapy of montelukast with antihistaminic provides enhancing and complimentary effects, thereby reducing the symptoms effectively, but there are scanty data regarding the comparisons of combinations...
November 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28057540/low-molecular-weight-heparin-coated-and-montelukast-filled-inhalable-particles-a-dual-drug-delivery-system-for-combination-therapy-in-asthma
#19
Brijeshkumar Patel, Jahidur Rashid, Nilesh Gupta, Fakhrul Ahsan
Montelukast, a cysteinyl leukotriene type 1 receptor antagonist, exhibits secondary anti-inflammatory properties when used at higher concentrations. Low molecular weight heparin (LMWH) evokes pronounced anti-inflammatory effects by interrupting leukocyte adhesion and migration. We hypothesized that inhalable particles containing montelukast plus LMWH release both drugs in a sustained fashion and protect the lungs against allergen-induced inflammation. Large porous particles of montelukast and LMWH were prepared using a double-emulsion-solvent-evaporation method...
January 2, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28049997/self-assessment-of-allergic-rhinitis-and-asthma-sacra-questionnaire-based-allergic-rhinitis-treatment-improves-asthma-control-in-asthmatic-patients-with-allergic-rhinitis
#20
Masanori Yasuo, Yoshiaki Kitaguchi, Yoshimichi Komatsu, Mineyuki Hama, Tomonobu Koizumi, Toshihiko Agatsuma, Takashi Ichiyama, Akane Kato, Hideaki Moteki, Masayuki Hanaoka
Objective This study was conducted to investigate whether the add-on treatment of allergic rhinitis (AR) based on the Self-assessment of Allergic Rhinitis and Asthma (SACRA) questionnaire for assessing AR control improves both AR and asthma control in asthmatic patients with AR. Methods This multi-center prospective study was performed in Nagano prefecture, Japan. Two hundred five asthmatic patients and 23 respiratory physicians participated in the study. We administered add-on AR treatments based on the results of the SACRA questionnaire...
2017: Internal Medicine
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