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https://www.readbyqxmd.com/read/28919220/peucedanum-japonicum-extract-attenuates-allergic-airway-inflammation-by-inhibiting-th2-cell-activation-and-production-of-pro-inflammatory-mediators
#1
Jin Mi Chun, A-Reum Lee, Hyo Seon Kim, A Yeong Lee, Gyo Jeong Gu, Byeong Cheol Moon, Bo-In Kwon
ETHNOPHARMACOLOGICAL RELEVANCE: The root of Peucedanum japonicum Thunb is traditionally used to treat coughs, colds, headache and inflammatory diseases in Korea and Japan. Its effects on allergic lung inflammation have not been investigated. AIM OF THE STUDY: To investigate the anti-asthmatic effects of Peucedanum japonicum extract (PJE) using a murine model of asthma and a lipopolysaccharide (LPS)-stimulated macrophage cell line. MATERIALS AND METHODS: Mice underwent two rounds of sensitization with ovalbumin 1 week apart followed by four intranasal ovalbumin challenges on days 13-16...
September 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28890868/surgical-and-immune-reconstitution-murine-models-in-bone-marrow-research-potential-for-exploring-mechanisms-in-sepsis-trauma-and-allergy
#2
REVIEW
Pedro Xavier-Elsas, Renato Nunes Ferreira, Maria Ignez C Gaspar-Elsas
Bone marrow, the vital organ which maintains lifelong hemopoiesis, currently receives considerable attention, as a source of multiple cell types which may play important roles in repair at distant sites. This emerging function, distinct from, but closely related to, bone marrow roles in innate immunity and inflammation, has been characterized through a number of strategies. However, the use of surgical models in this endeavour has hitherto been limited. Surgical strategies allow the experimenter to predetermine the site, timing, severity and invasiveness of injury; to add or remove aggravating factors (such as infection and defects in immunity) in controlled ways; and to manipulate the context of repair, including reconstitution with selected immune cell subpopulations...
August 20, 2017: World Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28887522/urban-pm2-5-exacerbates-allergic-inflammation-in-the-murine-lung-via-a-tlr2-tlr4-myd88-signaling-pathway
#3
Miao He, Takamichi Ichinose, Yasuhiro Yoshida, Keiichi Arashidani, Seiichi Yoshida, Hirohisa Takano, Guifan Sun, Takayuki Shibamoto
Nevertheless its mechanism has not been well explained yet, PM2.5 is recognized to exacerbate asthma. In the present study, the roles of toll-like receptor (TLR) 2, TLR4 and MyD88, in exacerbation of allergen-induced lung eosinophilia caused by urban PM2.5 was investigated. TLR2-, TLR4-, MyD88-deficient and WT BALB/c mice were intratracheally challenged with PM2.5 +/- ovalbumin (OVA) four times at 2-week intervals. PM2.5 increased neutrophil numbers and KC in bronchoalveolar lavage fluid and caused slight peribronchiolar inflammation in WT mice...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28869233/meropenem-a-possible-new-culprit-in-eosinophilic-lung-diseases
#4
Nathalie Abi Hatem, Sabrina Campbell, Edmundo Rubio, Anthony Lukas Loschner
Eosinophilic lung diseases are a diverse group of pulmonary disorders with an extensive list of differential diagnoses. Multiple drugs particularly antibiotics can cause pulmonary eosinophilia with variable pulmonary manifestations. Cutaneous drug reactions are common. Diagnosis is usually made on clinical history and blood eosinophilia with an accumulation of eosinophils in alveolar spaces on histologic analysis. Imaging findings are nonspecific. Stopping the offending agent is often enough while a short course of corticosteroids can hasten recovery...
September 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28868484/acute-hepatitis-in-the-dress-syndrome
#5
Ana Maria Oliveira, Rita Carvalho, Alexandra Martins, Jorge Reis
Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a severe, idiosyncratic reaction characterized by diffuse maculopapular rash, facial edema, lymphadenopathy, fever, eosinophilia and/or other leukocyte abnormalities, and involvement of internal organs as liver, kidney, heart and lung. Diagnosing this entity is specifically complicated due to the multiplicity of organs involved. DRESS syndrome must be recognized promptly and the causative drug withdrawn in order to improve patient outcomes...
November 2016: GE Port J Gastroenterol
https://www.readbyqxmd.com/read/28846899/virus-like-particle-vaccine-primes-immune-responses-preventing-inactivated-virus-vaccine-enhanced-disease-against-respiratory-syncytial-virus
#6
Hye Suk Hwang, Young-Tae Lee, Ki-Hye Kim, Eun-Ju Ko, Youri Lee, Young-Man Kwon, Sang-Moo Kang
Formalin inactivated respiratory syncytial virus (FI-RSV) vaccination caused vaccine-enhanced respiratory disease (ERD) upon exposure to RSV in children. Virus-like particles presenting RSV F fusion protein (F VLP) are known to increase T helper type-1 (Th1) immune responses and avoid ERD in animal models. We hypothesized that F VLP would prime immune responses preventing ERD upon subsequent exposure to ERD-prone FI-RSV. Here, we demonstrated that heterologous F VLP priming and FI-RSV boosting of mice prevented FI-RSV vaccine-enhanced lung inflammation and eosinophilia upon RSV challenge...
August 25, 2017: Virology
https://www.readbyqxmd.com/read/28838976/clinical-and-biological-characteristics-of-the-french-cobra-cohort-of-adult-subjects-with-asthma
#7
Marina Pretolani, David Soussan, Isabelle Poirier, Gabriel Thabut, Michel Aubier
The COhort of BRonchial obstruction and Asthma (COBRA) is a longitudinal cohort that involves 12 French academic institutions. DNA, serum samples and clinical data are collected at entry and every 6 months thereafter.Of 1080 patients with asthma recruited between 2007 and 2015, 401 had mild/moderate and 613 had severe asthma. In cross-sectional analyses, compared with patients with milder disease, patients with severe asthma had more symptoms, exacerbations, hospitalisations and visits to the emergency department during the preceding 12 months, higher numbers of blood eosinophils, and more comorbidities...
August 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28837221/tailored-interventions-based-on-sputum-eosinophils-versus-clinical-symptoms-for-asthma-in-children-and-adults
#8
REVIEW
Helen L Petsky, Albert Li, Anne B Chang
BACKGROUND: Asthma severity and control can be measured both subjectively and objectively. Sputum analysis for evaluation of percentage of sputum eosinophilia directly measures airway inflammation, and is one method of objectively monitoring asthma. Using sputum analysis to adjust or tailor asthma medications is potentially superior to traditional methods based on symptoms and spirometry. OBJECTIVES: To evaluate the efficacy of tailoring asthma interventions based on sputum analysis in comparison to traditional methods (usually symptom-based with or without spirometry/peak flow) for asthma-related outcomes in children and adults...
August 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28833810/features-of-asthma-which-provide-meaningful-insights-for-understanding-the-disease-heterogeneity
#9
Matea Deliu, Tolga S Yavuz, Matthew Sperrin, Danielle Belgrave, Umit M Sahiner, Cansin Sackesen, Omer Kalayci, Adnan Custovic
BACKGROUND: Data-driven methods such as hierarchical clustering (HC) and principal component analysis (PCA) have been used to identify asthma subtypes, with inconsistent results. OBJECTIVE: To develop a framework for the discovery of stable and clinically meaningful asthma subtypes. METHODS: We performed HC in a rich dataset from 613 asthmatic children, using 45 clinical variables (Model 1), and after PCA dimensionality reduction (Model 2)...
August 22, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28831373/chronic-eosinophilic-pneumonia-after-radiation-therapy-for-squamous-cell-lung-cancer
#10
Hiromasa Nakayasu, Toshihiro Shirai, Yuko Tanaka, Mika Saigusa
Reports of chronic eosinophilic pneumonia (CEP) after radiation therapy are limited to breast cancer. We herein describe a case of CEP after radiation therapy for lung cancer. The patient was a 65-year-old man who had asymptomatic peripheral blood eosinophilia but no history of asthma or allergy. One month after completion of radiation therapy, chest CT scan revealed infiltrates inside the irradiated area, leading to the diagnosis of radiation pneumonitis. His condition improved after receiving corticosteroids...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28815006/biomarkers-in-inflammometry-pediatric-asthma-utility-in-daily-clinical-practice
#11
REVIEW
Silvia Sánchez-García, Alicia Habernau Mena, Santiago Quirce
Asthma is a common disease in both high and lower income countries that starts early and persists often for life. A correct and accurate diagnosis, treatment and follow-up during childhood are essential for a better understanding of adult asthma and avoiding over- or under-treatment. Th2 inflammation in children with asthma symptoms is usually assessed by measuring with serum total IgE, blood eosinophilia and FeNO levels that may help to predict asthma, particularly in those infants and young children in whom lung function tests are difficult to perform...
2017: European Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28814851/effect-of-allergic-phenotype-on-treatment-response-to-inhaled-bronchodilators-with-or-without-inhaled-corticosteroids-in-patients-with-copd
#12
Shih-Lung Cheng, Hsu Hui Wang, Ching-Hsiung Lin
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a heterogeneous disorder encompassing different phenotypes with different responses to treatment. The present 1-year, two-center hospital-based study investigated whether the plasma immunoglobulin E (IgE) level and/or eosinophil cell count could be used as biomarkers to stratify patients with COPD according to predicted responses to inhaled corticosteroids (ICS)-based therapy. METHODS: A hospital-data based cohort study of COPD patients treated at two territory hospital centers was conducted for 1 year...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28807078/the-relationship-between-lung-function-and-the-clinical-and-histopathological-features-in-chinese-patients-with-nasal-polyps
#13
Q L Zhao, L Yu, L L Zhi, P Jin, X X Zi, L Zhao, A Li, Y Y Tu, L Shi, H P Zhang
OBJECTIVE: To investigate lung function in Chinese patients suffering from chronic rhinosinusitis with nasal polyps and examine its association with histopathological features. METHODS: The lung function of 99 patients with nasal polyps was measured. Haematoxylin and eosin and immunohistochemistry staining were performed to evaluate any inflammatory cells and epithelial tissue remodelling. RESULTS: Predicted maximal expiratory flow rate at 25 per cent vital capacity was reduced (p < 0...
August 15, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28762062/sequential-rituximab-and-omalizumab-for-the-treatment-of-eosinophilic-granulomatosis-with-polyangiitis-churg-strauss-syndrome
#14
REVIEW
David Aguirre-Valencia, Iván Posso-Osorio, Juan-Carlos Bravo, Fabio Bonilla-Abadía, Gabriel J Tobón, Carlos A Cañas
Eosinophilic granulomatosis with polyangiitis (EGPA), formerly known as Churg-Strauss syndrome (CSS), is a small vessel vasculitis associated with eosinophilia and asthma. Clinical manifestations commonly seen in patients presenting with EGPA range from upper airway and lung involvement to neurological, cardiac, cutaneous, and renal manifestations. Treatment for severe presentations includes steroids, cyclophosphamide, plasmapheresis, and recently, rituximab. Rituximab is associated with a good response in the treatment of vasculitis, but a variable response for the control of allergic symptoms...
July 31, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28757230/vitamin-d-high-sensitivity-c-reactive-protein-and-airway-hyperresponsiveness-in-infants-with-recurrent-respiratory-symptoms
#15
Anette M Määttä, Anne Kotaniemi-Syrjänen, Kristiina Malmström, L Pekka Malmberg, Jouko Sundvall, Anna S Pelkonen, Mika J Mäkelä
BACKGROUND: Vitamin D insufficiency might be associated with biased T-cell responses resulting in inflammatory conditions such as atopy and asthma. Little is known about the role of vitamin D in low-grade systemic inflammation and airway hyperresponsiveness (AHR) in young children. OBJECTIVE: To evaluate whether vitamin D insufficiency and increased serum high-sensitivity C-reactive protein (hs-CRP) are linked to AHR in symptomatic infants. METHODS: Seventy-nine infants with recurrent or persistent lower respiratory tract symptoms underwent comprehensive lung function testing and a bronchial methacholine challenge test...
September 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28755856/th9-cells-induce-steroid-resistant-bronchial-hyperresponsiveness-in-mice
#16
Mayumi Saeki, Osamu Kaminuma, Tomoe Nishimura, Noriko Kitamura, Akio Mori, Takachika Hiroi
BACKGROUND: Reduced responsiveness to corticosteroid therapy is a major problem for patients with severe asthma. Although Th9 cells, along with Th2 cells, facilitate antigen-induced airway eosinophilia and bronchial hyperresponsiveness (BHR), the sensitivity of Th9 cell-mediated responses to steroid therapy remains unknown. In this study, we investigated the effect of dexamethasone (Dex) on antigen-induced airway inflammation in Th9 cell-transferred mice. METHODS: Ovalbumin (OVA)-specific Th2 and Th9 cells were polarized from the CD4(+) T cells of DO11...
July 26, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28748902/acute-renal-failure-secondary-to-drug-related-crystalluria-and-or-drug-reaction-with-eosinophilia-and-systemic-symptom-syndrome-in-a-patient-with-metastatic-lung-cancer
#17
Saime Paydas, Mustafa Balal, Firat Kocabas, Nurettin Ay
Drug reaction with eosinophilia and systemic symptoms (DRESS) or drug-induced hypersensitivity is a severe adverse drug-induced reaction. Aromatic anticonvulsants, such as phenytoin, phenobarbital, and carbamazepine, and some drugs, can induce DRESS. Atypical crystalluria can be seen in patients treated with amoxycillin or some drugs and can cause acute renal failure. We describe a 66-year-old man who presented fever and rash and acute renal failure three days after starting amoxycillin. He was also using phenytoin because of cerebral metastatic lung cancer...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28742120/virus-induced-asthma-attack-the-importance-of-allergic-inflammation-in-response-to-viral-antigen-in-an-animal-model-of-asthma
#18
Christopher Skappak, Ramses Ilarraza, Ying-Qi Wu, Matthew G Drake, Darryl J Adamko
Asthma exacerbation can be a life-threatening condition, and is most often triggered by common respiratory viruses. Poor asthma control and worsening of respiratory function is associated with increased airway inflammation, including eosinophilia. Prevention of asthma exacerbation relies on treatment with corticosteroids, which preferentially inhibit allergic inflammation like eosinophils. Human studies demonstrate that inactivated virus can trigger eosinophil activation in vitro through antigen presentation and memory CD4+ lymphocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28736941/in-vivo-neutralization-of-%C3%AE-4-and-%C3%AE-7-integrins-inhibits-eosinophil-trafficking-and-prevents-lung-injury-during-tropical-pulmonary-eosinophilia-in-mice
#19
Pankaj Sharma, Aditi Sharma, Mrigank Srivastava
Integrins regulate leukocyte trafficking during homeostasis and inflammatory conditions. However, the role of α4 and β7 integrins in guiding eosinophil transmigration into the lungs during filarial manifestation of Tropical Pulmonary Eosinophilia (TPE) has not been explored. In this study, mice exhibiting TPE manifestations were administered with in vivo neutralizing antibodies against integrins α4 and β7 or their combination and immuno-pathological parameters were evaluated. Results show an intact lung barrier, significantly lower lung inflammation and reduced eosinophil counts in the Bronchoalveolar lavage fluid and lungs of mice receiving anti-α4(+) β7 treatment...
July 24, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28731127/pidotimod-exacerbates-allergic-pulmonary-infection-in-an-ova-mouse-model-of-asthma
#20
Luo-Qin Fu, Ya-Li Li, Ai-Kun Fu, Yan-Ping Wu, Yuan-Yuan Wang, Sheng-Lan Hu, Wei-Fen Li
Pidotimod is a synthetic dipeptide with biological and immuno‑modulatory properties. It has been widely used for treatment and prevention of recurrent respiratory infections. However, its impact on the regulation of allergic pulmonary inflammation is still not clear. In the current study, an ovalbumin (OVA)‑induced allergic asthma model was used to investigate the immune‑modulating effects of pidotimod on airway eosinophilia, mucus metaplasia and inflammatory factor expression compared with dexamethasone (positive control)...
October 2017: Molecular Medicine Reports
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