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Hypersensitivity pneumonitis

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https://www.readbyqxmd.com/read/28300574/sex-steroid-receptor-expression-in-idiopathic-pulmonary-fibrosis
#1
Mitra Mehrad, Humberto E Trejo Bittar, Samuel A Yousem
Usual interstitial pneumonia (UIP) is characterized by progressive scarring of the lungs and is associated with high morbidity and mortality despite therapeutic interventions. Sex steroid receptors have been demonstrated to play an important role in chronic lung conditions; however, their significance is unknown in patients with UIP. We retrospectively reviewed 40 idiopathic UIP cases for the expression of hormonal receptors. Forty cases including 10 normal lung, 10 cryptogenic organizing pneumonia (COP), 10 idiopathic organizing diffuse alveolar damage (DAD), 7 hypersensitivity pneumonitis (HP) and 3 nonspecific interstitial pneumonitis (NSIP) served as controls...
March 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28297158/unclassifiable-interstitial-lung-diseases-clinical-characteristics-and-survival
#2
Charlotte Hyldgaard, Elisabeth Bendstrup, Athol U Wells, Ole Hilberg
BACKGROUND AND OBJECTIVE: Unclassifiable disease in chronic interstitial lung disease (ILD) is a common and challenging problem but has been insufficiently studied. The 2013 update of the international multidisciplinary classification of the idiopathic interstitial pneumonias presented a classification based on observed disease behaviour with the purpose of providing guidance to clinicians in the management of these patients. The aim of this study was to apply the new disease behaviour classification (DBC) and the previously validated ILD-gender age physiology (GAP) score to a cohort of unclassifiable ILD patients and to assess the prognostic value of these two composite approaches...
April 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28290974/sepsis-mimicker-in-an-human-immunodeficiency-virus-infected-patient
#3
Mackenzie K Morgan, Joshua D Hartzell, Jason M Blaylock
A 22-year-old human immunodeficiency virus-infected male presented with fever, rash, hypotension, and renal insufficiency 18 days following initiation of therapy with an efavirenz-based antiretroviral regimen. Although rash is a common side effect of efavirenz, severe hypersensitivity reactions are rare. Systemic symptoms can include hepatic toxicity and pneumonitis, and in one instance death. Corticosteroids are the mainstay of treatment.
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28286422/hypersensitivity-pneumonitis-a-complex-lung-disease
#4
REVIEW
Gian Galeazzo Riario Sforza, Androula Marinou
Hypersensitivity pneumonitis (HP), also called extrinsic allergic alveolitis, is a respiratory syndrome involving the lung parenchyma and specifically the alveoli, terminal bronchioli, and alveolar interstitium, due to a delayed allergic reaction. Such reaction is secondary to a repeated and prolonged inhalation of different types of organic dusts or other substances to which the patient is sensitized and hyper responsive, primarily consisting of organic dusts of animal or vegetable origin, more rarely from chemicals...
2017: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/28223152/pathological-findings-and-prognosis-in-a-large-prospective-cohort-of-chronic-hypersensitivity-pneumonitis
#5
Ping Wang, Kirk D Jones, Anatoly Urisman, Brett M Elicker, Thomas Urbania, Kerri A Johannson, Deborah Assayag, Joyce Lee, Paul J Wolters, Harold R Collard, Laura L Koth
BACKGROUND: The ability of specific histopathological features to predict mortality or lung transplant in chronic hypersensitivity pneumonitis patients is unknown. METHODS: Patients with chronic hypersensitivity pneumonitis diagnosed by surgical lung biopsy were identified from an ongoing longitudinal cohort. The surgical lung biopsy slides were evaluated prospectively by an experienced thoracic pathologist using a standardized checklist to differentiate the major pathologic patterns and score the presence of specific histopathological features...
February 18, 2017: Chest
https://www.readbyqxmd.com/read/28217822/how-to-diagnose-early-5-azacytidine-induced-pneumonitis-a-case-report
#6
Srimanta Chandra Misra, Laurence Gabriel, Eric Nacoulma, Gérard Dine, Valentina Guarino
Interstitial pneumonitis is a classical complication of many drugs. Pulmonary toxicity due to 5-azacytidine, a deoxyribonucleic acid methyltransferase inhibitor and cytotoxic drug, has rarely been reported. We report a 67-year-old female myelodysplastic syndrome patient treated with 5-azacytidine at the conventional dosage of 75 mg/m(2) for 7 days. One week after starting she developed moderate fever along with dry cough and subsequently her temperature rose to 39.5 °C. She was placed under broad-spectrum antibiotics based on the protocol for febrile neutropenia, including ciprofloxacin 750 mg twice daily, ceftazidime 1 g three times daily (tid), and sulfamethoxazole/trimethoprim 400 mg/80 mg tid...
December 2017: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/28214136/japanese-guidelines-for-occupational-allergic-diseases-2017
#7
REVIEW
Kunio Dobashi, Kazuo Akiyama, Atsushi Usami, Hiroo Yokozeki, Zenro Ikezawa, Naomi Tsurikisawa, Yoichi Nakamura, Kazuhiro Sato, Jiro Okumura, Kaoru Takayama
In 2013, a guideline for occupational allergic diseases was published for the first time in Japan. Occupational allergic diseases are likely to worsen or become intractable as a result of continuous exposure to high concentrations of causative antigens, and are socioeconomically important diseases with which the patients might sometimes lose jobs due to work interruptions. Guidelines for occupational allergic diseases have been published in many countries. This guideline consists of six chapters about occupational asthma, occupational allergic rhinitis, occupational skin diseases, hypersensitivity pneumonitis and occupational anaphylaxis shock, and legal aspects of these diseases...
February 14, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28202030/upregulation-of-interleukin-33-and-thymic-stromal-lymphopoietin-levels-in-the-lungs-of-idiopathic-pulmonary-fibrosis
#8
Jong-Uk Lee, Hun Soo Chang, Hyeon Ju Lee, Chang An Jung, Da Jeong Bae, Hyun Ji Song, Jong Sook Park, Soo-Taek Uh, Young Hoon Kim, Ki-Hyun Seo, Choon-Sik Park
BACKGROUND: Innate T helper type 2 (Th2) immune responses mediated by interleukin (IL)-33, thymic stromal lymphopoietin (TSLP), and IL-25 have been shown to play an important role in pulmonary fibrosis of animal models; however, their clinical implications remain poorly understood. METHODS: TSLP, IL-25, and IL-33 concentrations were measured in bronchoalveolar lavage fluids obtained from normal controls (NCs; n = 40) and from patients with idiopathic pulmonary fibrosis (IPF; n = 100), non-specific interstitial pneumonia (NSIP; n = 22), hypersensitivity pneumonitis (HP; n = 20), and sarcoidosis (n = 19)...
February 15, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28198728/personalized-medicine-in-interstitial-lung-diseases
#9
Paolo Spagnolo, Justin M Oldham, Mark G Jones, Joyce S Lee
PURPOSE OF REVIEW: A number of recent studies have explored the possibility to apply personalized medicine to interstitial lung diseases (ILDs), particularly idiopathic pulmonary fibrosis (IPF), the most common and deadly of the idiopathic interstitial pneumonias. In our review, we summarize and discuss the most recent literature on personalized medicine in IPF as well as hypersensitivity pneumonitis and sarcoidosis, with emphasis on patient subgroups for which a personalized approach to disease prognostication and management may become a reality in the near future...
February 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28182861/diffuse-pulmonary-ossification-in-fibrosing-interstitial-lung-diseases-prevalence-and-associations
#10
Ryoko Egashira, Joseph Jacob, Maria A Kokosi, Anne-Laure Brun, Alexandra Rice, Andrew G Nicholson, Athol U Wells, David M Hansell
Purpose To investigate the prevalence of diffuse pulmonary ossification (DPO) in patients with fibrosing interstitial lung disease (ILD) and determine whether there are differences among the types of ILDs. Materials and Methods Institutional review board approval was given and patient consent was not required for this study. The study population comprised 892 consecutive patients with fibrosing ILD, including 456 patients with idiopathic pulmonary fibrosis (IPF) (men, 366; women, 90; median age, 72 years [range, 38-93 years]), 244 with nonspecific interstitial pneumonia (men, 79; women, 165; median age, 60...
February 9, 2017: Radiology
https://www.readbyqxmd.com/read/28177949/progress-with-structure-activity-relationship-modelling-of-occupational-chemical-respiratory-sensitizers
#11
Martin J Seed, Raymond M Agius
PURPOSE OF REVIEW: This appraises currently available computer-based ('in silico') models relating the molecular structure of low molecular weight compounds to their respiratory sensitization hazard. The present review places focus on the two main applications of such structure--activity relationship (SAR) models: hypotheses on disease mechanisms and toxicological prediction. RECENT FINDINGS: Analyses of the chemical structures of low molecular weight organic compounds known to have caused occupational asthma has led to the development of mechanistic alerts usually based on electrophilic reaction chemistry and protein cross-linking potential...
February 7, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28141568/chronic-hypersensitivity-pneumonia-due-to-pigeon-breeders-disease
#12
Wonashi R Tsanglao, Devki Nandan, Sudha Chandelia, Minakshi Bhardwaj
BACKGROUND: Pigeon breeders disease usually affects adults. Children are more likely to be affected when they share living space with a backyard poultry or pigeon breeding. CASE CHARACTERISTICS: A 12-year-old girl with persistent cough for 3 years and dyspnea for 2 years. OBERVATION: She was dignosed to be having allergy to pigeon droppings, based on reports of lung biopsy and allergy testing. MESSAGE: Pigeon breaders disease should be considered in a child who presents with features of chronic hypersensiticity pneumonitis...
January 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28139852/eosinophil-transendothelial-migration-induced-by-the-bronchoalveolar-lavage-fluid-of-acute-eosinophilic-pneumonia
#13
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/28130610/automated-computer-based-ct-stratification-as-a-predictor-of-outcome-in-hypersensitivity-pneumonitis
#14
Joseph Jacob, B J Bartholmai, S Rajagopalan, R Karwoski, S M Mak, W Mok, G Della Casa, K Sugino, S L F Walsh, A U Wells, D M Hansell
BACKGROUND: Hypersensitivity pneumonitis (HP) has a variable clinical course. Modelling of quantitative CALIPER-derived CT data can identify distinct disease phenotypes. Mortality prediction using CALIPER analysis was compared to the interstitial lung disease gender, age, physiology (ILD-GAP) outcome model. METHODS: CALIPER CT analysis of parenchymal patterns in 98 consecutive HP patients was compared to visual CT scoring by two radiologists. Functional indices including forced vital capacity (FVC) and diffusion capacity for carbon monoxide (DLco) in univariate and multivariate Cox mortality models...
January 27, 2017: European Radiology
https://www.readbyqxmd.com/read/28125151/pleuroparenchymal-fibroelastosis-report-of-two-cases-in-brazil
#15
Paula Silva Gomes, Christina Shiang, Gilberto Szarf, Ester Nei Aparecida Martins Coletta, Carlos Alberto de Castro Pereira
Pleuroparenchymal fibroelastosis (PPFE) is a rare lung disease. It can be idiopathic or associated with any one of various conditions. To our knowledge, this is the first report of two cases of PPFE in Brazil. Our first patient presented with pleural and subpleural fibrosis in the upper lobes; a spiculated nodule in the left upper lobe; and a mild reticular pattern in the lower lobes. Surgical lung biopsy revealed PPFE in the upper lobes, including the nodule, and unclassified interstitial pneumonia in the left lower lobe...
January 23, 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28117477/hard-metal-lung-disease-a-case-series
#16
Rafael Futoshi Mizutani, Mário Terra-Filho, Evelise Lima, Carolina Salim Gonçalves Freitas, Rodrigo Caruso Chate, Ronaldo Adib Kairalla, Regiani Carvalho-Oliveira, Ubiratan Paula Santos
Objective: To describe diagnostic and treatment aspects of hard metal lung disease (HMLD) and to review the current literature on the topic. Methods: This was a retrospective study based on the medical records of patients treated at the Occupational Respiratory Diseases Clinic of the Instituto do Coração, in the city of São Paulo, Brazil, between 2010 and 2013. Results: Of 320 patients treated during the study period, 5 (1.56%) were diagnosed with HMLD...
November 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28094581/early-immunopathological-events-in-acute-model-of-mycobacterial-hypersensitivity-pneumonitis-in-mice
#17
Elisabet Johansson, Gregory P Boivin, Jagjit S Yadav
Prolonged exposure to antigens of non-tuberculous mycobacteria species colonizing industrial metalworking fluid (MWF), particularly Mycobacterium immunogenum (MI), has been implicated in chronic forms of hypersensitivity pneumonitis (HP) in machinists based on epidemiology studies and long-term exposure of mouse models. However, a role of short-term acute exposure to these antigens has not been described in the context of acute forms of HP. This study investigated short-term acute exposure of mice to MI cell lysate (or live cell suspension) via oropharyngeal aspiration...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28062740/feather-bedding-as-a-cause-of-hypersensitivity-pneumonitis
#18
Jonathon Shaw, Colm Leonard, Nazia Chaudhuri
No abstract text is available yet for this article.
January 5, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28057004/gene-profile-of-fibroblasts-identify-relation-of-ccl8-with-idiopathic-pulmonary-fibrosis
#19
Jong-Uk Lee, Hyun Sub Cheong, Eun-Young Shim, Da-Jeong Bae, Hun Soo Chang, Soo-Taek Uh, Young Hoon Kim, Jong-Sook Park, Bora Lee, Hyoung Doo Shin, Choon-Sik Park
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is characterized by the complex interaction of cells involved in chronic inflammation and fibrosis. Global gene expression of a homogenous cell population will identify novel candidate genes. METHODS: Gene expression of fibroblasts derived from lung tissues (8 IPF and 4 controls) was profiled, and ontology and functional pathway were analyzed in the genes exhibiting >2 absolute fold changes with p-values < 0...
January 5, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28031829/summer-type-hypersensitivity-pneumonitis-in-a-patient-with-rheumatoid-arthritis-on-methotrexate-and-tacrolimus
#20
Hirotsugu Ohkubo, Minami Okayama, Kensuke Fukumitsu, Akio Niimi
A 59-year-old woman receiving methotrexate and tacrolimus for rheumatoid arthritis (RA) was referred to our hospital following bilateral ground-glass opacity observed in her chest X-ray and elevated serum KL-6. After methotrexate and tacrolimus cessation, shortness of breath developed and ground-glass opacity observed in the chest computed tomography rapidly worsened. Bronchoalveolar lavage showed increased lymphocytes, and trans-bronchial lung biopsy confirmed lymphocytic alveolitis. In addition, the patient had serum antibodies against Trichosporon asahii, a fungal pathogen...
November 2016: Respirology Case Reports
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