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Hypersensitivity pneumonitis

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https://www.readbyqxmd.com/read/29774214/the-expression-of-aqp1-is-modified-in-lung-of-patients-with-idiopathic-pulmonary-fibrosis-addressing-a-possible-new-target
#1
Ana Galán-Cobo, Elena Arellano-Orden, Rocío Sánchez Silva, José Luis López-Campos, César Gutiérrez Rivera, Lourdes Gómez Izquierdo, Nela Suárez-Luna, María Molina-Molina, José A Rodríguez Portal, Miriam Echevarría
Activation of the epithelial-mesenchymal transition process (EMT) by which alveolar cells in human lung tissue undergo differentiation giving rise to a mesenchymal phenotype (fibroblast/miofibroblasts) has been well recognized as a key element in the origin of idiopathic pulmonary fibrosis (IPF). Here we analyzed expression of AQP1 in lung biopsies of patients diagnosed with IPF, and compared it to biopsies derived from patients with diverse lung pneumonies, such as hypersensitivity pneumonitis, sarcoidosis or normal lungs...
2018: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/29773665/hypersensitivity-pneumonitis-and-acute-respiratory-distress-syndrome-from-e-cigarette-use
#2
Casey G Sommerfeld, Daniel J Weiner, Andrew Nowalk, Allyson Larkin
Electronic cigarette (e-cigarette) use, or "vaping," is gaining widespread popularity as an alternative to conventional cigarettes among adolescents. Little is known of the health risks of e-cigarette use, especially in children and adolescents. We present a Case Report of a previously healthy 18-year-old woman who presented with dyspnea, cough, and pleuritic chest pain after e-cigarette use. She developed respiratory failure with hypoxia and was intubated, and ultimately met diagnostic criteria for acute respiratory distress syndrome...
May 17, 2018: Pediatrics
https://www.readbyqxmd.com/read/29755982/clinical-genetics-in-interstitial-lung-disease
#3
REVIEW
Chad A Newton, Philip L Molyneaux, Justin M Oldham
Interstitial lung disease (ILD) comprises a heterogeneous group of diffuse parenchymal lung processes with overlapping clinical, radiographic, and histopathologic features. Among the most common and deadly ILDs are idiopathic pulmonary fibrosis (IPF) and chronic hypersensitivity pneumonitis (CHP). As the name implies, the cause of IPF remains elusive, but a variety of genetic and infectious risk factors have been identified. CHP results from chronic inhalation of an organic antigen, usually of avian or mold origin, and may occur in patients with a genetic predisposition...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29751799/the-aging-lung-tissue-telomere-shortening-in-health-and-disease
#4
Stephanie Everaerts, Elise J Lammertyn, Dries S Martens, Laurens J De Sadeleer, Karen Maes, Aernoud A van Batenburg, Roel Goldschmeding, Coline H M van Moorsel, Lieven J Dupont, Wim A Wuyts, Robin Vos, Ghislaine Gayan-Ramirez, Naftali Kaminski, James C Hogg, Wim Janssens, Geert M Verleden, Tim S Nawrot, Stijn E Verleden, John E McDonough, Bart M Vanaudenaerde
BACKGROUND: Telomere shortening has been associated with several lung diseases. However, telomere length is generally measured in peripheral blood leucocytes rather than in lung tissue, where disease occurs. Consequently, telomere dynamics have not been established for the normal human lung nor for diseased lung tissue. We hypothesized an age- and disease-dependent shortening of lung tissue telomeres. METHODS: At time of (re-)transplantation or autopsy, 70 explant lungs were collected: from unused donors (normal, n = 13) and patients with cystic fibrosis (CF, n = 12), chronic obstructive pulmonary disease (COPD, n = 11), chronic hypersensitivity pneumonitis (cHP, n = 9), bronchiolitis obliterans syndrome (BOS) after prior transplantation (n = 11) and restrictive allograft syndrome (RAS) after prior transplantation (n = 14)...
May 11, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29727203/current-and-emerging-techniques-for-the-diagnosis-of-hypersensitivity-pneumonitis
#5
Thibaud Soumagne, Jean Charles Dalphin
Hypersensitivity pneumonitis (HP) is the result of an immunologically induced inflammation of the lung parenchyma in response to inhalation exposure to a large variety of antigens in genetically susceptible individuals. HP shares clinical and radiological features with other acute and chronic interstitial lung diseases and is sometimes difficult to diagnose if exposure to an antigenic agent is not detected. Several classifications and diagnostic criteria have been proposed but are not currently recommended by guidelines from any scientific society...
May 4, 2018: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29724400/functional-associations-of-pleuroparenchymal-fibroelastosis-and-emphysema-with-hypersensitivity-pneumonitis
#6
Joseph Jacob, Arlette Odink, Anne Laure Brun, Claudio Macaluso, Angelo de Lauretis, Maria Kokosi, Anand Devaraj, Sujal Desai, Elisabetta Renzoni, Athol U Wells
BACKGROUND: Pleuroparenchymal fibroelastosis (PPFE) has been described in hypersensitivity pneumonitis (HP) yet its functional implications are unclear. Combined pulmonary fibrosis and emphysema (CPFE) has occasionally been described in never-smokers with HP, but epidemiological data regarding its prevalence is sparse. CTs in a large HP cohort were therefore examined to identify the prevalence and effects of PPFE and emphysema. METHODS: 233 HP patients had CT extents of interstitial lung disease (ILD) and emphysema quantified to the nearest 5%...
May 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29719801/an-unusual-presentation-of-a-case-of-human-psittacosis
#7
Yannick Vande Weygaerde, Charlot Versteele, Elke Thijs, Anton De Spiegeleer, Jerina Boelens, Daisy Vanrompay, Eva Van Braeckel, Karim Vermaelen
Background: Chlamydia psittaci is a gram-negative, obligate intracellular organism. Birds are the main reservoir, but also non-avian domestic animals and humans can be infected. In humans it mostly causes respiratory infections due to occupational exposure with varying severity. Sensitive and specific diagnostic tests are needed to define psittacosis in humans as these tests also allow rapid tracing of the animal source. However, diagnosis in humans is often based on time-consuming culture techniques and antibody detection assays as in many countries, the existing molecular diagnostic tests for psittacosis are not reimbursed by the public health insurance...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29697078/high-resolution-computerized-tomography-changes-in-diffuse-parenchymal-lung-disease-from-chronic-hypersensitivity-pneumonitis-related-to-bird-antigen
#8
Parthasarathi Bhattacharyya, Sanjukta Dasgupta, Mintu Paul, Dipanjan Saha, Sayoni Sengupta, Pinak Pani Bhattacharyya
Background: Chronic hypersensitivity pneumonitis (HP) is the most common cause of diffuse parenchymal lung disease (DPLD) in India. There is no data regarding the avian antigen exposure-associated DPLD from the country. Methods: Chronic HP from exposure to avian antigen was diagnosed when the high resolution computerized tomography (HRCT) showed features for HP and was supported by the history of exposure to pigeons, the presence of precipitin antibodies (IgG) to avian antigen in high titre with negative rheumatoid factor, antinuclear antibody, and no clinical clue for a collagen vascular disease...
May 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29601568/-hypersensitivity-pneumonitis-and-idiopathic-pulmonary-fibrosis-case-report
#9
Barbara Mackiewicz, Jan Siwiec, Elżbieta Czekajska-Chehab, Janusz Milanowski
Hypersensitivity pneumonitis (HP), called extrinsic allergic alveolitis, is a syndrome characterized by diffuse inflammation of lung parenchyma and airways in response to the inhalation of antigens to witch the patient has been previously sensitized. The clinical presentation of HP have been categorized as acute, subacute and chronic. The patient with chronic HP may lack a history of acute episodes and usually reports the insidious onset of cough, dyspnoea, fatigue, and weight los. Idiopathic pulmonary fibrosis (IPF) is a type of lung disease that results in scarring (fibrosis) of the lungs for an unknown reason...
March 27, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29601564/-nintedanib-in-the-treatment-of-fibrosing-interstital-lung-diseases
#10
REVIEW
Katarzyna Lewandowska
Nintedanib is an intracellular tyrosine kinase inhibitor approved in a treatment of idiopathic pulmonary fibrosis. It reduces the annual rate of forced vital capacity decline by approximately 50%, that results in slowing of disease progression. The drug also reduces the incidence of acute exacerbations of idiopathic pulmonary fibrosis. The efficacy of nintedanib was the same in different groups of patients, irrespectively to disease status, age, gender and race. The most frequent side effects were gastrointestinal, i...
March 27, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29569759/a-breath-taking-dress-due-to-amoxicillin-clavulanate-presenting-as-polymorphic-eruption-of-the-pregnancy
#11
M S van Kester, T J C Langeveld, H Bouwsma, J B van Rees, E R Holman, Y K O Teng, E J van Zuuren
Drug reaction with eosinophilia and systemic symptoms (DRESS) is a delayed-type drug hypersensitivity reaction with potential life-threatening complications. To our knowledge, DRESS has never been described in pregnancy. Here, we report on a pregnant woman presenting with erythematous plaques on the abdomen, developing cardiac tamponade due to eosinophilic perimyocarditis and an interstitial pneumonitis five weeks after exposure to amoxicillin-clavulanate. This article is protected by copyright. All rights reserved...
March 23, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29555449/hypersensitivity-pneumonitis-towards-a-less-invasive-diagnostic-procedure
#12
Ferran Morell, Iñigo Ojanguren, María Jesús Cruz
No abstract text is available yet for this article.
March 16, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29531717/occupational-hypersensitivity-pneumonitis-in-a-koji-brewer
#13
Takashi Ishiguro, Shoko Kawai, Ayako Kojima, Yoshihiko Shimizu, Katsuhiko Kamei, Noboru Takayanagi
Koji is a fermenting agent used in many traditional Japanese foods , and Aspergillus oryzae is the most frequently used microorganism in koji production. Few cases of hypersensitivity pneumonitis due to A. oryzae have been reported. However, physicians should recognize the disease because of the increasing globalization of food production.
March 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29522197/summer-type-hypersensitivity-pneumonitis
#14
Masahiro Yamasaki, Masaya Taniwaki, Naoko Deguchi, Noboru Hattori
No abstract text is available yet for this article.
March 7, 2018: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29505280/reply-from-the-authors-of-hypersensitivity-pneumonitis-perspectives-in-diagnosis-and-management
#15
Martina Vasakova, Ferran Morell, Ganesh Raghu
No abstract text is available yet for this article.
March 5, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29505271/diagnostic-decision-making-in-hypersensitivity-pneumonitis-towards-a-consensus-statement
#16
Evans R Fernández Pérez
No abstract text is available yet for this article.
March 5, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29489682/the-clinical-characteristics-and-the-features-of-immunophenotype-of-peripheral-lymphocytes-of-adult-onset-chronic-active-epstein-barr-virus-disease-at-a-tertiary-care-hospital-in-beijing
#17
Ling Luo, Huanling Wang, Hongwei Fan, Jing Xie, Zhifeng Qiu, Taisheng Li
Chronic active Epstein-Barr virus (CAEBV) infection is a rare disease with high mortality. Most of CAEBV patients have been reported from Japan and are pediatric cases.The goal was to describe the clinical characteristics and the immunophenotypic features of peripheral lymphocytes in adult onset CAEBV patients.We retrospectively reviewed and analyzed all adult onset CAEBV cases admitted to Peking Union Medical College Hospital (PUMCH) between 2012 and 2016. Demographic, clinical, laboratory data, and the immunophentyping data of peripheral lymphocytes were collected...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29467760/microrna-regulation-of-host-immune-responses-following-fungal-exposure
#18
REVIEW
Tara L Croston, Angela R Lemons, Donald H Beezhold, Brett J Green
Fungal bioaerosols are ubiquitous in the environment and human exposure can result in a variety of health effects ranging from systemic, subcutaneous, and cutaneous infections to respiratory morbidity including allergy, asthma, and hypersensitivity pneumonitis. Recent research has focused on the role of microRNAs (miRNAs) following fungal exposure and is overlooked, yet important, group of regulators capable of influencing fungal immune responses through a variety of cellular mechanisms. These small non-coding ribose nucleic acids function to regulate gene expression at the post-transcriptional level and have been shown to participate in multiple disease pathways including cancer, heart disease, apoptosis, as well as immune responses to microbial hazards and occupational allergens...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29459527/-a-case-of-summer-type-hypersensitivity-pneumonitis-accompanied-by-the-syndrome-of-inappropriate-secretion-of-antidiuretic-hormone
#19
Yukiko Abe, Tsutomu Kawasaki, Kazuhiro Shimaya, Toshihisa Ishikawa, Yuki Kata, Kaori Okayasu, Koji Unoura, Yoichi Nakamura
A 47-year old man presented to our hospital with a 6-month history of malaise, cough and dyspnea on exertion. Laboratory testing revealed the severe hyponatremia. A chest X-ray showed bilateral diffuse micronodules. Anti-Trichosporon asahii antibody and environmental provocation test were positive. Bronchoalveolar lavage fluid showed lymphocytosis and low CD4/8 ratio. The specimens obtained by transbronchial lung biopsy revealed alveolitis. Based on these findings, the patient was diagnosed as having summer-type hypersensitivity pneumonitis (SHP)...
2018: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/29436403/chronic-interstitial-lung-disease-in-children
#20
REVIEW
Matthias Griese
Children's interstitial lung diseases (chILD) are increasingly recognised and contain many lung developmental and genetic disorders not yet identified in adult pneumology. Worldwide, several registers have been established. The Australasian Registry Network for Orphan Lung Disease (ARNOLD) has identified problems in estimating rare disease prevalence; focusing on chILD in immunocompetent patients, a period prevalence of 1.5 cases per million children and a mortality rate of 7% were determined. The chILD-EU register highlighted the workload to be covered per patient included and provided protocols for diagnosis and initial treatment, similar to the United States chILD network...
March 31, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
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