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Bronchial obstruction

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https://www.readbyqxmd.com/read/28806967/microrna-181c-inhibits-cigarette-smoke-induced-chronic-obstructive-pulmonary-disease-by-regulating-ccn1-expression
#1
Yong Du, Yi Ding, Xuru Chen, Zhoufang Mei, Heyuan Ding, Yi Wu, Zhijun Jie
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is an obstinate pulmonary disease, causing irreversible alveoli collapse and increasing the risk for cardiovascular disease. Accumulating evidence has shown that the dysregulation of miRNAs is crucially involved in the pathogenesis and development of COPD. However, the effects and role of microRNA-181c (miR-181c) have not been investigated in a murine model of COPD. METHODS: miR-181c expression was detected in human lung tissue samples of 34 patients, an in vivo murine model of CS exposure, and primary human bronchial epithelial cells (HBECs) by qRT-PCR...
August 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28805775/-the-features-of-diagnosis-and-treatment-of-traumatic-and-non-traumatic-pulmonary-bleeding
#2
Sh N Danielyan, M M Abakumov, E A Tarabrin, L S Kokov, A M Gasanov, A P Wilk, A A Saprin
AIM: To analyze an efficacy of differentiated approach for pulmonary bleeding of different etiology and severity. MATERIAL AND METHODS: The study included 134 cases of pulmonary bleeding for the period 2006-2015 including 53 patients with traumatic and 81 with non-traumatic etiology. Men/women ratio was 2.7:1, mean age was 43 years. Comparative retrospective analysis of X-ray and CT data in diagnosis of bleeding source was performed. Bronchoscopy was used to confirm these data...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28804700/abridged-version-of-the-awmf-guideline-for-the-medical-clinical-diagnostics-of-indoor-mould-exposure-s2k-guideline-of-the-german-society-of-hygiene-environmental-medicine-and-preventive-medicine-ghup-in-collaboration-with-the-german-association-of-allergists
#3
Gerhard A Wiesmüller, Birger Heinzow, Ute Aurbach, Karl-Christian Bergmann, Albrecht Bufe, Walter Buzina, Oliver A Cornely, Steffen Engelhart, Guido Fischer, Thomas Gabrio, Werner Heinz, Caroline E W Herr, Jörg Kleine-Tebbe, Ludger Klimek, Martin Köberle, Herbert Lichtnecker, Thomas Lob-Corzilius, Rolf Merget, Norbert Mülleneisen, Dennis Nowak, Uta Rabe, Monika Raulf, Hans Peter Seidl, Jens-Oliver Steiß, Regine Szewszyk, Peter Thomas, Kerttu Valtanen, Julia Hurraß
This article is an abridged version of the AWMF mould guideline "Medical clinical diagnostics of indoor mould exposure" presented in April 2016 by the German Society of Hygiene, Environmental Medicine and Preventive Medicine (Gesellschaft für Hygiene, Umweltmedizin und Präventivmedizin, GHUP), in collaboration with the above-mentioned scientific medical societies, German and Austrian societies, medical associations and experts. Indoor mould growth is a potential health risk, even if a quantitative and/or causal relationship between the occurrence of individual mould species and health problems has yet to be established...
2017: Allergo Journal International
https://www.readbyqxmd.com/read/28796545/use-of-mdct-to-assess-the-results-of-bronchial-thermoplasty
#4
Matheus Zanon, Débora L Strieder, Adalberto S Rubin, Guilherme Watte, Edson Marchiori, Paulo F G Cardoso, Bruno Hochhegger
OBJECTIVE: The purpose of this study was to evaluate the use of MDCT to assess response to bronchial thermoplasty treatment for severe persistent asthma. MATERIALS AND METHODS: MDCT data from 26 patients with severe persistent asthma who underwent imaging before and after bronchial thermoplasty were analyzed retrospectively. Changes in the following parameters were assessed: total lung volume, mean lung density, airway wall thickness, CT air trapping index (attenuation < -856 HU), and expiratory-inspiratory ratio of mean lung density (E/I index)...
August 10, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28790283/-postoperative-atelectasis-and-pneumonia-after-general-thoracic-surgery
#5
Yasushi Hoshikawa, Daisuke Tochii
Atelectasis and pneumonia are common postoperative complications occurred in patients undergoing general thoracic surgery. Strategies to reduce the risk of postoperative pulmonary complications including these 2 disorders consist of smoking cessation, optimization of underlying chronic obstructive pulmonary disease( COPD), adequate pain control, intensive oral care, and so on. Preoperative treatments for patients with COPD are the same as those for COPD patients being not about to have surgery, which mainly consist of long-acting bronchodilators and pulmonary rehabilitation...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28790180/pseudomonas-aeruginosa-lasb-protease-impairs-innate-immunity-in-mice-and-humans-by-targeting-a-lung-epithelial-cystic-fibrosis-transmembrane-regulator-il-6-antimicrobial-repair-pathway
#6
Vinciane Saint-Criq, Bérengère Villeret, Fabien Bastaert, Saadé Kheir, Aurélie Hatton, Aurélie Cazes, Zhou Xing, Isabelle Sermet-Gaudelus, Ignacio Garcia-Verdugo, Aleksander Edelman, Jean-Michel Sallenave
BACKGROUND: Pseudomonas aeruginosa lung infections are a huge problem in ventilator-associated pneumonia, cystic fibrosis (CF) and in chronic obstructive pulmonary disease (COPD) exacerbations. This bacterium secretes virulence factors that may subvert host innate immunity. OBJECTIVE: We evaluated the effect of P. aeruginosa elastase LasB, an important virulence factor secreted by the type II secretion system, on ion transport, innate immune responses and epithelial repair, both in vitro and in vivo...
August 8, 2017: Thorax
https://www.readbyqxmd.com/read/28774473/hyperinflation-of-the-left-anterior-basal-segment-a-new-sign-of-pectus-excavatum-severity-on-ct
#7
S Singh, S B Greenberg
AIM: To describe a new finding in patients with pectus excavatum - left lower lobe anterior basal segment hyperinflation [LABSH]. A secondary objective is to determine the frequency of the new finding and association with pectus excavatum severity. MATERIAL AND METHODS: The study population included 52 children who underwent preoperative computed tomography (CT) for the evaluation of pectus excavatum. A control group of 50 children was obtained after evaluating 137 CT examinations performed for other reasons...
July 31, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28771980/interrupter-technique-in-infancy-higher-airway-resistance-and-lower-short-term-variability-in-preterm-versus-term-infants
#8
Jakob Usemann, Désirée Demann, Pinelopi Anagnostopoulou, Insa Korten, Olga Gorlanova, Sven Schulzke, Urs Frey, Philipp Latzin
BACKGROUND: In preschool children, measurement of airway resistance using interrupter technique (Rint) is feasible to assess the degree of bronchial obstruction. Although some studies measured Rint in infancy, values of Rint and its variability in preterm infants are unknown. In this study, Rint and its variability was measured at infancy and compared between healthy term and preterm infants. METHODS: High quality Rint measurements in term (n = 50) and preterm (n = 48) infants were obtained at postmenstrual age of 42-50 weeks in two study centers in Switzerland...
August 3, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28767602/iatrogenic-rupture-of-the-left-main-bronchus-secondary-to-repeated-surgical-lobe-torsion-during-double-lumen-tube-placement-a-case-report
#9
Zong Ming Jiang, Chu Zhang, Zhong Hua Chen
RATIONALE: Bronchial rupture is a rare but potentially life-threatening complication during double-lumen endobronchial tube placement. The rupture of the left main bronchus resulting from repeated surgical torsion is uncommon. PATIENT CONCERNS: A 70-year-old man with a history of chronic obstructive pulmonary disease (COPD), intermediate emphysema, chronic bronchitis, hypertension, type 2 diabetes mellitus, and L3-L4 lumbar intervertebral disc herniation. Chest x-ray and computed tomography revealed a solitary pulmonary nodule in the left lower lobe...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28758847/sex-related-differences-in-bronchial-parameters-and-pulmonary-function-test-results-in-patients-with-chronic-obstructive-pulmonary-disease-based-on-three-dimensional-quantitative-computed-tomography
#10
Yan Li, Yong-Liang Dai, Nan Yu, You-Min Guo
Objective This study was performed to evaluate the effect of sex on bronchial parameters and the predicted forced expiratory volume in 1 s expressed as a percentage of the forced vital capacity (FEV1% pred) on pulmonary function testing. Methods The data of 359 patients with chronic obstructive pulmonary disease (COPD) with available FEV1% pred and computed tomography (CT) images were retrospectively reviewed. FACT-Digital lung TM software (DeXin, Xi'an, China) was used to perform fully automated three-dimensional CT quantitative measurements of the bronchi...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28751430/persistent-air-leak-after-pulmonary-transplantation
#11
Laurence Pearmain, Piotr Krysiak, John Blaikley, Mohamed Alaloul
A 59-year-old man with bilateral apical emphysema underwent a double lung transplant for end-stagechronic obstructive pulmonary disease leaving remnant right apical native tissue due to pleural adhesions. Initial postoperative course was uneventful until the chest drains were removed. This revealed a small pneumomediastinum, which progressively increased in size causing gross surgical emphysema. Re-insertion of the chest drain stabilised the patient so that the cause could be identified and corrected. Two bronchoscopies excluded anastomotic dehiscence as a cause...
July 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28748188/arterial-stiffness-in-symptomatic-smokers-with-normal-lung-function
#12
Nicola Scichilone, Antonino Tuttolomondo, Carlo Maida, Alida Benfante, Jessica Peluso, Anna Cirrincione, Valerio Vassallo, Antonio Pinto
Chronic obstructive pulmonary disease (COPD) is associated with cardiovascular morbidity and mortality. Arterial stiffness and endothelial dysfunction index are validated surrogate cardiovascular markers and are increased in subjects with COPD. We tested whether increased arterial stiffness and endothelial dysfunction occur in symptomatic smokers with no evidence of bronchial obstruction. Clinical and lung functional assessments were conducted in smoker subjects with chronic respiratory symptoms and in COPD patients...
July 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28747957/acn9-regulates-the-inflammatory-responses-in-human-bronchial-epithelial-cells
#13
Jae Hoon Jeong, Jeeyoung Kim, Jeongwoon Kim, Hye-Ryeon Heo, Jin Seon Jeong, Young-Joon Ryu, Yoonki Hong, Seon-Sook Han, Seok-Ho Hong, Seung-Joon Lee, Woo Jin Kim
BACKGROUND: Airway epithelial cells are the first line of defense, against pathogens and environmental pollutants, in the lungs. Cellular stress by cadmium (Cd), resulting in airway inflammation, is assumed to be directly involved in tissue injury, linked to the development of lung cancer, and chronic obstructive pulmonary disease (COPD). We had earlier shown that ACN9 (chromosome 7q21), is a potential candidate gene for COPD, and identified significant interaction with smoking, based on genetic studies...
July 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28745522/pharmacological-characterization-of-the-interaction-between-tiotropium-and-olodaterol-administered-at-5-5-concentration-ratio-in-equine-bronchi
#14
Luigino Calzetta, Paola Rogliani, Maurizio Mattei, Pietro Alfonsi, Giuseppe Cito, Elena Pistocchini, Mario Cazzola, Maria Gabriella Matera
Equine airways represent a suitable ex vivo model to study the functional impact of pharmacological treatments on human chronic obstructive pulmonary disorders, such as asthma and chronic obstructive pulmonary disease (COPD). We aimed to characterize the pharmacological interaction between the long-acting muscarinic antagonist (LAMA) tiotropium and the long-acting β2-agonist (LABA) olodaterol in equine airways. The effect of tiotropium and olodaterol, administered alone and in combination at the ratio of concentrations reproducing ex vivo the concentration-ratio delivered by the currently available fixed-dose combination (FDC) (5:5), was investigated on the cholinergic contractile tone induced by the parasympathetic activation of equine isolated airways...
July 26, 2017: COPD
https://www.readbyqxmd.com/read/28742806/long-term-follow-up-of-pulmonary-function-in-fabry-disease-a-bi-center-observational-study
#15
Daniel P Franzen, Albina Nowak, Sarah R Haile, Dominique Mottet, Marco Bonani, Olivier Dormond, Malcolm Kohler, Pierre A Krayenbuehl, Frederic Barbey
INTRODUCTION: Fabry disease (FD) is a lysosomal storage disorder leading to decreased α-galactosidase A enzyme activity and subsequent abnormal accumulation of glycosphingolipids in various organs. Although histological evidence of lung involvement has been demonstrated, the functional impact of these changes is less clear. MATERIALS AND METHODS: Adult patients with FD who had yearly pulmonary function tests (PFT) at two centers from 1999 thru 2015 were eligible for this observational study...
2017: PloS One
https://www.readbyqxmd.com/read/28741603/role-of-the-lung-microbiome-in-the-pathogenesis-of-chronic-obstructive-pulmonary-disease
#16
REVIEW
Lei Wang, Ke Hao, Ting Yang, Chen Wang
OBJECTIVE: The development of culture-independent techniques for microbiological analysis shows that bronchial tree is not sterile in either healthy or chronic obstructive pulmonary disease (COPD) individuals. With the advance of sequencing technologies, lung microbiome has become a new frontier for pulmonary disease research, and such advance has led to better understanding of the lung microbiome in COPD. This review aimed to summarize the recent advances in lung microbiome, its relationships with COPD, and the possible mechanisms that microbiome contributed to COPD pathogenesis...
July 24, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28740854/clinical-implications-of-oscillatory-lung-function-during-methacholine-bronchoprovocation-testing-of-preschool-children
#17
Sun Hee Choi, Youn Ho Sheen, Mi Ae Kim, Ji Hyeon Baek, Hey Sung Baek, Seung Jin Lee, Jung Won Yoon, Yeong Ho Rha, Man Yong Han
OBJECTIVE: To investigate the repeatability and safety of measuring impulse oscillation system (IOS) parameters and the point of wheezing during bronchoprovocation testing of preschool children. METHODS: Two sets of methacholine challenge were conducted in 36 asthma children. The test was discontinued if there was a significant change in reactance (Xrs5) and resistance (Rrs5) at 5 Hz (Condition 1) or respiratory distress due to airway obstruction (Condition 2)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28738344/quantitative-low-dose-computed-tomography-of-the-lung-parenchyma-and-airways-for-the-differentiation-between-chronic-obstructive-pulmonary-disease-and-asthma-patients
#18
Huai Chen, Qing-Si Zeng, Min Zhang, Rong-Chang Chen, Ting-Ting Xia, Wei Wang, Xiaoyin Xu, Yubao Guan
BACKGROUND: It is difficult to differentiate between chronic obstructive pulmonary disease (COPD) and asthma in clinics; therefore, for diagnostic purposes, imaging-based measurements could be beneficial to differentiate between the two diseases. OBJECTIVES: We aim to analyze quantitative measurements of the lung and bronchial parameters that are provided by low-dose computed tomography (CT) to differentiate COPD and asthma from an imaging perspective. MATERIALS AND METHODS: 69 COPD patients, 52 asthma patients, and 20 healthy subjects were recruited to participate in CT imaging and pulmonary function tests (PFTs)...
July 25, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28737881/-bronchial-mucoepidermoid-carcinoma-in-childhood-case-report
#19
Giselle Cuestas, Verónica Rodríguez, Flavia Doormann, Patricio Bellia Munzón, Gastón Bellia Munzón
Bronchial tumors are rare in children. Most of them are malignant, being the carcinoid tumor the most common. Less frequently the mucoepidermoid carcinoma is found in the tracheobronchial tree. Mucoepidermoid carcinoma accounts for 0.1 to 0.2% of all malignant bronchopulmonary tumors. It manifests with symptoms of airway obstruction and/or recurrent pneumonias. Early diagnosis and appropriate treatment are of great importance in the prognosis. Bronchoscopy with biopsy of the endobronchial mass is the method of choice to confirm the diagnosis...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28731412/lung-sound-analysis-is-useful-for-monitoring-therapy-in-patients-with-bronchial-asthma
#20
T Shimoda, Y Obase, Y Nagasaka, H Nakano, R Kishikawa, T Iwanaga
BACKGROUND AND OBJECTIVE: Lung sound analysis (LSA) has been reported to be useful for predicting airway obstruction and inflammation in patients with bronchial asthma. Objectives: We examined whether the exhalation-to-inhalation sound pressure ratio in the middle frequency range (200-400 Hz) (E/I MF) is useful for monitoring therapy in patients with asthma. METHODS: The study population comprised 84 patients with mild to moderate asthma whose LSA data were available before and after 1 year of daily treatment with (budesonide 800 μg)...
2017: Journal of Investigational Allergology & Clinical Immunology
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