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Idiopathic cough

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https://www.readbyqxmd.com/read/29674445/druggable-negative-allosteric-site-of-p2x3-receptors
#1
Jin Wang, Yao Wang, Wen-Wen Cui, Yichen Huang, Yang Yang, Yan Liu, Wen-Shan Zhao, Xiao-Yang Cheng, Wang-Sheng Sun, Peng Cao, Michael X Zhu, Rui Wang, Motoyuki Hattori, Ye Yu
Allosteric modulation provides exciting opportunities for drug discovery of enzymes, ion channels, and G protein-coupled receptors. As cation channels gated by extracellular ATP, P2X receptors have attracted wide attention as new drug targets. Although small molecules targeting P2X receptors have entered into clinical trials for rheumatoid arthritis, cough, and pain, negative allosteric modulation of these receptors remains largely unexplored. Here, combining X-ray crystallography, computational modeling, and functional studies of channel mutants, we identified a negative allosteric site on P2X3 receptors, fostered by the left flipper (LF), lower body (LB), and dorsal fin (DF) domains...
April 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29601568/-hypersensitivity-pneumonitis-and-idiopathic-pulmonary-fibrosis-case-report
#2
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/29518849/-respiratory-manifestations-of-yellow-nail-syndrome-report-of-two-cases-and-literature-review
#3
S Li, H Huang, K Xu, Z J Xu
Objective: To describe the clinical characteristics of respiratory manifestations of yellow nail syndrome. Methods: We conducted a retrospective analysis of 2 patients with respiratory diseases associated with yellow nail syndrome. Their clinical and chest radiological data were collected. We searched PubMed, Wanfang and CNKI databases with the keywords "yellow nail syndrome, yellow nail and lung" in Chinese and English. And the relevant literatures, including 6 articles in Chinese and 81 articles in English, were reviewed...
March 12, 2018: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29513385/quality-of-life-metrics-correlate-with-disease-severity-in-idiopathic-subglottic-stenosis
#4
Matthew R Naunheim, Paul M Paddle, Inna Husain, Patcharamanee Wangchalabovorn, David Rosario, Ramon A Franco
OBJECTIVES: Idiopathic subglottic stenosis (ISGS) can have significant impacts on quality of life (QOL), but it remains unclear how patients' subjective responses correlate with objective measurement of disease severity. Peak expiratory flow percentage (PEF%) has been shown to be an effective measure of disease severity in subglottic stenosis. This study aims to identify the key QOL questions correlated with PEF% and proposes a statistical model for prediction of disease severity. METHODS: Patients with ISGS presenting to an academic laryngologist were included retrospectively from 2012 to 2016...
March 7, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29465476/idiopathic-pulmonary-fibrosis-a-guide-for-nurse-practitioners
#5
Michelle Vega-Olivo, Gerard J Criner
Idiopathic pulmonary fibrosis (IPF) is a rare disease characterized by decline in lung function, dyspnea, and cough. The clinical course of IPF is variable and unpredictable. Early referral to specialists is key to ensure timely and accurate diagnosis. Two antifibrotic drugs (nintedanib and pirfenidone) have been approved for the treatment of IPF.
February 19, 2018: Nurse Practitioner
https://www.readbyqxmd.com/read/29438818/small-and-large-airway-reactions-to-osmotic-stimuli-in-asthma-and-chronic-idiopathic-cough
#6
Ewa-Lena Johansson, Ewa Ternesten-Hasséus, Per Gustafsson, Teet Pullerits, Monica Arvidsson, Eva Millqvist
BACKGROUND: Chronic cough is a common symptom and related to several pulmonary, airway and heart diseases. When all likely medical explanations for the coughing are excluded, there remains a large group of patients with chronic coughing, which is mostly a cough reflex easily triggered by environmental irritants and noxious stimuli. The main aim of this study was to improve the diagnostic ability to differentiate chronic idiopathic cough (CIC) from asthma. METHODS: Twenty-three patients with CIC, 16 patients with mild asthma and 21 control participants were included...
February 10, 2018: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29436729/adverse-events-linked-with-the-use-of-chimeric-and-humanized-anti-cd20-antibodies-in-children-with-idiopathic-nephrotic-syndrome
#7
Alice Bonanni, Marta Calatroni, Matteo D'Alessandro, Sara Signa, Enrica Bertelli, Michela Cioni, Eddi Di Marco, Roberto Biassoni, Gianluca Caridi, Giulia Ingrasciotta, Roberta Bertelli, Armando Di Donato, Maurizio Bruschi, Alberto Canepa, Giorgio Piaggio, Pietro Ravani, Gian Marco Ghiggeri
AIMS: Anti-CD20 antibodies are increasingly being used to treat idiopathic nephrotic syndrome (INS) in children. While they may allow steroid and calcineurin inhibitor withdrawal, repeated infusions of anti-CD20 antibodies are often required to maintain remission. Data on their potential toxicity in INS are needed, to consider repeated infusions. METHODS: We investigated the side effects associated with the use of rituximab (a chimeric antibody; 130 patients) and ofatumumab (a humanized antibody; 37 patients) in children with INS (steroid-dependent and steroid/calcineurin inhibitor-dependent disease) treated at a national referral centre over a 9-year period (400 treatments; follow-up 1-9 years)...
February 13, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29414454/recognition-of-unprovoked-idiopathic-pulmonary-embolism-prospective-observational-study
#8
Natalia Stoeva, Galina Kirova, Milena Staneva, Diana Lekova, Anton Penev, Rumiana Bakalova
BACKGROUND: The assessment of the clinical symptoms is the weakest link of the pulmonary embolism (PE) diagnostic algorithm. Despite the presence of highly sensitive and specific imaging methods, verifying PE remains difficult due to nonspecific clinical symptoms and frequently its subclinical course. OBJECTIVE: The aim of this study is to improve the recognition of PE by investigating the clinical presentation and short-term prognosis of unprovoked PE in comparison to provoked PE...
February 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29413500/evaluation-of-a-respiratory-symptom-diary-for-clinical-studies-of-idiopathic-pulmonary-fibrosis
#9
Elizabeth Dansie Bacci, Sean O'Quinn, Nancy Kline Leidy, Lindsey Murray, Margaret Vernon
BACKGROUND: There are no validated patient diaries for evaluating respiratory symptoms in idiopathic pulmonary fibrosis (IPF). PURPOSE: To evaluate the performance properties of the chronic obstructive pulmonary disease (COPD) Evaluating Respiratory Symptoms™ (E-RS™: COPD) measure in patients with IPF. METHODS: Concept elicitation and cognitive interviews were conducted with IPF patients to evaluate content validity, including comprehensiveness, relevance, and interpretability of E-RS™ items in this patient population...
January 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29390299/black-pleural-effusion-due-to-pancreatic-pseudocyst-a-case-report
#10
Feng Guo, Junli Wu, Yunpeng Peng, Min Tu, Bin Xiao, Cuncai Dai, Kuirong Jiang, Wentao Gao, Qiang Li, Jishu Wei, Jianmin Chen, Chunhua Xi, Zipeng Lu, Yi Miao
RATIONALE: Black pleural effusion (BPE) is an extremely uncommon type of pleural fluid, which can be due to infection, primary or metastatic malignancy, and hemorrhage. As reported in previous studies, BPE is also observed in some patients with pancreatic pseudocyst. PATIENT CONCERNS: We herein reported a case of a 14-year-old female patient who was admitted to our center with a history of cough for 1 and a half months and right chest pain for 1 month. Before this, she was consecutively hospitalized in 3 different hospitals due to the same symptoms...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29385965/diagnosis-and-management-of-idiopathic-pulmonary-fibrosis-thoracic-society-of-australia-and-new-zealand-and-lung-foundation-australia-position-statements-summary
#11
Helen E Jo, Jyotika D Prasad, Lauren K Troy, Annabelle Mahar, Jane Bleasel, Samantha J Ellis, Daniel C Chambers, Anne E Holland, Fiona R Lake, Gregory Keir, Nicole S Goh, Margaret Wilsher, Sally de Boer, Yuben Moodley, Christopher Grainge, Helen M Whitford, Sally A Chapman, Paul N Reynolds, David Beatson, Leonie J Jones, Peter Hopkins, Heather M Allan, Ian Glaspole, Tamera J Corte
Idiopathic pulmonary fibrosis (IPF) is a fibrosing interstitial lung disease associated with debilitating symptoms of dyspnoea and cough, resulting in respiratory failure, impaired quality of life and ultimately death. Diagnosing IPF can be challenging, as it often shares many features with other interstitial lung diseases. In this article, we summarise recent joint position statements on the diagnosis and management of IPF from the Thoracic Society of Australia and New Zealand and Lung Foundation Australia, specifically tailored for physicians across Australia and New Zealand...
February 5, 2018: Medical Journal of Australia
https://www.readbyqxmd.com/read/29381133/gabapentin-for-cough-in-cancer
#12
Rab Razzak, Julie M Waldfogel, Danielle J Doberman, Josephine L Feliciano, Thomas J Smith
Cough is a common problem among cancer patients, especially lung cancer patients. Gabapentin has been shown to be effective in reducing cough number and severity in patients with idiopathic refractory cough. The authors report here the successful use of gabapentin at usual doses to treat cough in cancer patients, including two with lung cancer, with minimal side effects. Gabapentin may be a useful addition to the symptom management toolbox for palliation of cancer symptoms.
September 2017: Journal of Pain & Palliative Care Pharmacotherapy
https://www.readbyqxmd.com/read/29375697/primary-chylopericardium-a-case-report-and-literature-review
#13
Xue Yu, Na Jia, Sanxia Ye, Min Zhou, Deping Liu
Primary chylopericardium (CP) is a rare clinical condition in which chylous fluid containing high concentrations of triglyceride accumulates in the pericardial cavity. The present study reports a case of CP that was successfully treated by reconstruction surgery of thoracic duct. To improve the ability to diagnosis and treat this rare disease, the current study also systematically extracted 104 reported cases of primary or idiopathic CP from the past 60 years (January 1950 to December of 2015), and reviewed the clinical manifestation, etiology, diagnosis and treatment of these cases...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29367408/physiology-of-the-lung-in-idiopathic-pulmonary-fibrosis
#14
REVIEW
Laurent Plantier, Aurélie Cazes, Anh-Tuan Dinh-Xuan, Catherine Bancal, Sylvain Marchand-Adam, Bruno Crestani
The clinical expression of idiopathic pulmonary fibrosis (IPF) is directly related to multiple alterations in lung function. These alterations derive from a complex disease process affecting all compartments of the lower respiratory system, from the conducting airways to the lung vasculature. In this article we review the profound alterations in lung mechanics (reduced lung compliance and lung volumes), pulmonary gas exchange (reduced diffusing capacity, increased dead space ventilation, chronic arterial hypoxaemia) and airway physiology (increased cough reflex and increased airway volume), as well as pulmonary haemodynamics related to IPF...
March 31, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/29333842/an-adolescent-with-idiopathic-pleuroparenchymal-fibroelastosis-case-report
#15
Emine Atag, Nilay Bas Ikizoglu, Yasemin Gokdemir, Ela Erdem Eralp, Gursu Kiyan, Dilek Yilmazbayhan, Bulent Karadag
Idiopathic pleuroparenchymal fibroelastosis (IPPFE) is a rare disorder recently included in rare idiopathic interstitial pneumonias according to the updated American Thoracic Society/European Respiratory Society classification. IPPFE is characterized by pleural and subpleural parenchymal fibrosis causing volume loss predominantly in the upper lung lobes. Age of onset is variable, IPPFE mainly occurs in third and fourth decades. We present a 16 year old patient with a 2-year history of exertional dyspnea, nonproductive cough and weight loss...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29321422/progressive-restrictive-ventilatory-impairment-in-idiopathic-diffuse-pulmonary-ossification
#16
Hidemasa Matsuo, Tomohiro Handa, Michiko Tsuchiya, Takeshi Kubo, Akihiko Yoshizawa, Yuko Nakayama, Shuichi Shiga, Takefumi Hitomi, Souichi Adachi, Hiroshi Date, Toyohiro Hirai, Satoshi Ichiyama
Diffuse pulmonary ossification (DPO) is a rare disease characterized by metaplastic bone formation in the lung. There are few reports with a long-term follow-up of this disease. We herein report a 47-year-old man diagnosed with idiopathic DPO at 30 years of age. The patient's vital capacity was normal until 36 years of age (3.39 L, 82.4% predicted), but it was severely decreased when he visited the hospital again at 47 years of age due to cough and dyspnea (1.98 L, 44.6% predicted). Chest computed tomography showed a significant increase in the number of high-density nodules, suggesting that the progression of DPO had caused restrictive ventilatory impairment...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29321022/serum-metabolic-profiling-identified-a-distinct-metabolic-signature-in-patients-with-idiopathic-pulmonary-fibrosis-a-potential-biomarker-role-for-lysopc
#17
Barbara Rindlisbacher, Cornelia Schmid, Thomas Geiser, Cédric Bovet, Manuela Funke-Chambour
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a lethal lung disease of unknown etiology. Patients present loss of lung function, dyspnea and dry cough. Diagnosis requires compatible radiologic imaging and, in undetermined cases, invasive procedures such as bronchoscopy and surgical lung biopsy. The pathophysiological mechanisms of IPF are not completely understood. Lung injury with abnormal alveolar epithelial repair is thought to be a major cause for activation of profibrotic pathways in IPF...
January 10, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29321018/management-and-attitudes-about-ipf-idiopathic-pulmonary-fibrosis-among-physicians-from-latin-america
#18
Iván Cherrez-Ojeda, Vincent Cottin, Juan Carlos Calderón, César Delgado, Erick Calero, Daniel Simanca-Racines, Silvia Quadrelli, Annia Cherrez
BACKGROUND: The aim of our study was to assess current practice patterns and attitudes towards diagnosis and management of idiopathic pulmonary fibrosis (IPF) patients in Latin America. METHODS: A Cross-sectional survey was developed and up to 455 physicians were enrolled. We used a rigorous method of validation using the translated version of the AIR Survey. RESULTS: Mean age was 47.5 years (SD 12.6) with 20.4 years (SD 12.3) of practice...
January 10, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29286433/methodology-for-sputum-induction-and-laboratory-processing
#19
Julien Guiot, Sophie Demarche, Monique Henket, Virginie Paulus, Sophie Graff, Florence Schleich, Jean-Louis Corhay, Renaud Louis, Catherine Moermans
The technique of sputum induction and processing is a recognized non-invasive method allowing the collection and analysis of cells from the airways, which is interesting in various respiratory diseases like asthma, chronic obstructive pulmonary disease (COPD), chronic cough, or idiopathic pulmonary fibrosis. This technique is well tolerated, safe and non-invasive, but is currently limited to research services and specialized centers in clinical practice because it is technically demanding, time-consuming, and requires trained staff...
December 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29232284/thalidomide-as-a-cough-suppressant-in-idiopathic-pulmonary-fibrosis
#20
Rebecca Haraf, Arjan S Flora, Ragheb Assaly
No abstract text is available yet for this article.
November 22, 2017: American Journal of Therapeutics
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