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https://www.readbyqxmd.com/read/29228377/genotyping-of-pneumocystis-jirovecii-in-colonized-patients-with-various-pulmonary-diseases
#1
Magdalena Sokulska, Marta Kicia, Maria Wesolowska, Pawel Piesiak, Aneta Kowal, Maria Luísa Lobo, Zaneta Kopacz, Andrzej B Hendrich, Olga Matos
Pneumocystis jirovecii is an opportunistic fungus causing Pneumocystis pneumonia primarily in immunosuppressed patients. However, immunocompetent individuals may become colonized and, as asymptomatic carriers, serve as reservoirs of the pathogen. Moreover, these asymptomatic carriers are at higher risk of developing pneumonia if favorable conditions occur. This study aimed to determine the prevalence of P. jirovecii in patients with various pulmonary diseases and to characterize the genetic diversity of organisms circulating in the studied population...
December 8, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29228355/pulmonary-lymphangioleiomyomatosis-fertility-treatment
#2
Hiroaki Kanemura, Torahiko Jinta, Tomohide Tamura
No abstract text is available yet for this article.
December 7, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29228288/outcome-measures-used-in-pulmonary-rehabilitation-in-patients-with-acute-exacerbation-of-chronic-obstructive-pulmonary-disease-a-systematic-review
#3
Ana L Oliveira, Alda S Marques
Background: Conflicting results about the effects of community-based pulmonary rehabilitation in acute exacerbations of chronic obstructive pulmonary disease (AECOPD) exist, possibly because the variety of outcome measures used and the lack of appropriate measurement properties hinder the development of pulmonary rehabilitation guidelines. Purpose: The purpose of this study was to identify and review the measurement properties of patient-reported outcome measures (PROMs) and clinical outcome measures of AECOPD that are used in pulmonary rehabilitation and that can be easily applied in a community setting...
December 6, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29228231/novel-echocardiographic-method-to-assess-left-ventricular-chamber-stiffness-and-elevated-end-diastolic-pressure-based-on-time-velocity-integral-measurements-of-pulmonary-venous-and-transmitral-flows
#4
Kazunori Okada, Sanae Kaga, Rika Abiko, Michito Murayama, Takuma Hioka, Masahiro Nakabachi, Shinobu Yokoyama, Hisao Nishino, Ayako Ichikawa, Ayumu Abe, Mutsumi Nishida, Naoya Asakawa, Shingo Tsujinaga, Taichi Hayashi, Hiroyuki Iwano, Satoshi Yamada, Nobuo Masauzi, Taisei Mikami
Aims: The detection of increased left ventricular (LV) chamber stiffness may play an important role in assessing cardiac patients with potential but not overt heart failure. A non-invasive method to estimate it is not established. We investigated whether the echocardiographic backward/forward flow volume ratio from the left atrium (LA) during atrial contraction reflects the LV chamber stiffness. Methods and results: We studied 62 patients who underwent cardiac catheterization and measured their left ventricular end-diastolic pressure (LVEDP) and pressure increase during atrial contraction (ΔPa) from the LV pressure waveform...
December 8, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29228220/the-burden-of-presumed-tuberculosis-in-hospitalized-children-in-a-resource-limited-setting-in-papua-new-guinea-a-prospective-observational-study
#5
Villa Watch, Jimmy Aipit, Tina Kote-Yarong, Allanie Rero, John W Bolnga, Elvin Lufele, Moses Laman
Background: In Papua New Guinea, TB is considered to be a major public health problem, but little is known about the prevalence and prognosis of presumed TB in children. Methods: As part of a prospective hospital-based surveillance on the northern coast of mainland Papua New Guinea, the authors investigated the admission prevalence and case fatality rate associated with presumed TB over a 6-year period (2011-2016). All children admitted who were diagnosed with TB were followed-up until discharge or death...
December 8, 2017: International Health
https://www.readbyqxmd.com/read/29228138/american-society-of-anesthesiologists-physical-status-facilitates-risk-stratification-of-elderly-patients-undergoing-thoracoscopic-lobectomy
#6
Ruoyu Zhang, Thomas Kyriss, Jürgen Dippon, Matthias Hansen, Enole Boedeker, Godehard Friedel
OBJECTIVES: Accurate risk assessments are particularly important for elderly patients being considered for lobectomy. Considering the positive effects of the thoracoscopic approach on postoperative outcomes, we sought to review the reliability of the established risk factors for elderly patients undergoing thoracoscopic lobectomy. METHODS: From January 2009 to March 2016, 441 patients in our institution underwent thoracoscopic lobectomy for early-stage lung cancer...
December 8, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29228063/what-matters-in-chronic-burkholderia-cenocepacia-infection-in-cystic-fibrosis-insights-from-comparative-genomics
#7
Jaroslav Nunvar, Vaclav Capek, Karel Fiser, Libor Fila, Pavel Drevinek
Burkholderia cenocepacia causes severe pulmonary infections in cystic fibrosis (CF) patients. Since the bacterium is virtually untreatable by antibiotics, chronic infections persist for years and might develop into fatal septic pneumonia (cepacia syndrome, CS). To devise new strategies to combat chronic B. cenocepacia infections, it is essential to obtain comprehensive knowledge about their pathogenesis. We conducted a comparative genomic analysis of 32 Czech isolates of epidemic clone B. cenocepacia ST32 isolated from various stages of chronic infection in 8 CF patients...
December 11, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29228045/mycobacterial-infection-induces-higher-interleukin-1%C3%AE-and-dysregulated-lung-inflammation-in-mice-with-defective-leukocyte-nadph-oxidase
#8
Wen-Cheng Chao, Chia-Liang Yen, Cheng-Yuan Hsieh, Ya-Fang Huang, Yau-Lin Tseng, Peter Andrija Nigrovic, Chi-Chang Shieh
Granulomatous inflammation causes severe tissue damage in mycobacterial infection while redox status was reported to be crucial in the granulomatous inflammation. Here, we used a NADPH oxidase 2 (NOX2)-deficient mice (Ncf1-/-) to investigate the role of leukocyte-produced reactive oxygen species (ROS) in mycobacterium-induced granulomatous inflammation. We found poorly controlled mycobacterial proliferation, significant body weight loss, and a high mortality rate after M. marinum infection in Ncf1-/- mice. Moreover, we noticed loose and neutrophilic granulomas and higher levels of interleukin (IL)-1β and neutrophil chemokines in Ncf1-/- mice when compared with those in wild type mice...
2017: PloS One
https://www.readbyqxmd.com/read/29227938/the-cumulative-effect-of-air-pollutants-on-the-acute-exacerbation-of-copd-in-shanghai-china
#9
Xian Wen Sun, Pei Li Chen, Lei Ren, Ying Ni Lin, Jian Ping Zhou, Lei Ni, Qing Yun Li
BACKGROUND: Epidemiologic studies have shown the effect of air pollutants on acute exacerbation of chronic obstructive pulmonary disease (AECOPD). However, little is known regarding the dose-response relationship. This study aimed to investigate the cumulative effect of air pollutants on AECOPD. METHODS: We collected 101 patients with AECOPD from November 2010 through August 2011 in Shanghai. Multiple logistic regression was used to estimate associations between air pollutants and AECOPD...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227849/associations-between-long-term-pm2-5-and-ozone-exposure-and-mortality-in-the-canadian-census-health-and-environment-cohort-canchec-by-spatial-synoptic-classification-zone
#10
Sabit Cakmak, Chris Hebbern, Lauren Pinault, Eric Lavigne, Jennifer Vanos, Dan Lawson Crouse, Michael Tjepkema
Studies suggest that long-term chronic exposure to fine particulate matter air pollution can increase lung cancer mortality. We analyzed the association between long term PM2.5 and ozone exposure and mortality due to lung cancer, ischemic heart disease, and chronic obstructive pulmonary disease, accounting for geographic location, socioeconomic status, and residential mobility. Subjects in the 1991 Canadian Census Health and Environment Cohort (CanCHEC) were followed for 20years, and assigned to regions across Canada based on spatial synoptic classification weather types...
December 8, 2017: Environment International
https://www.readbyqxmd.com/read/29227733/identifying-patients-with-copd-in-need-for-psychosocial-care-through-screening-with-the-hscl-25-and-the-ccq-mental-state
#11
Gemma A Maters, Grieteke Pool, Robbert Sanderman, Johan B Wempe, Joke Fleer
High levels of psychological distress are documented in patients with COPD. This study investigates the extent to which patients with a high score on the Hopkins Symptoms Checklist-25 (HSCL-25) or with a high score on the Mental State scale of the Clinical COPD Questionnaire (CCQ) endorse a need for psychosocial care, and investigates several characteristics of patients with a need. Outpatients with COPD of the Department of Pulmonary Diseases of a University Medical Center were assessed with the HSCL-25, CCQ and a question on need for psychosocial care...
December 11, 2017: COPD
https://www.readbyqxmd.com/read/29227717/quercetin-restores-corticosteroid-sensitivity-in-cells-from-patients-with-chronic-obstructive-pulmonary-disease
#12
Akihisa Mitani, Aishah Azam, Chaitanya Vuppusetty, Kazuhiro Ito, Nicolas Mercado, Peter J Barnes
Corticosteroid resistance is a major barrier to the effective treatment of chronic obstructive pulmonary disease (COPD). Oxidative stress from cigarette smoke and chronic inflammation is likely to induce this corticosteroid insensitivity. Quercetin is a polyphenol that has been reported to be an active oxygen scavenger as well as a functional adenosine monophosphate-activated protein kinase (AMPK) activator. The aim of this study was to investigate the effect of quercetin on corticosteroid responsiveness in COPD cells...
December 11, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29227712/a-comparison-of-pain-fatigue-dyspnea-and-their-impact-on-quality-of-life-in-pulmonary-rehabilitation-participants-with-chronic-obstructive-pulmonary-disease
#13
Yi-Wen Chen, Pat G Camp, Harvey O Coxson, Jeremy D Road, Jordan A Guenette, Michael A Hunt, W Darlene Reid
In addition to dyspnea and fatigue, pain is a prevalent symptom in chronic obstructive pulmonary disease (COPD). Understanding the relative prevalence, magnitude, and interference with aspects of daily living of these symptoms can improve COPD management. Therefore, the purposes of this study were to: (1) compare the prevalence and magnitude of dyspnea, fatigue, and pain and how each limits aspects of daily living; (2) determine the association between pain and the other two symptoms; and (3) assess the impact of these symptoms on quality of life in COPD...
December 11, 2017: COPD
https://www.readbyqxmd.com/read/29227654/synergistic-chemopreventive-and-therapeutic-effects-of-co-drug-ua-met-implication-in-tumor-metastasis
#14
Guirong Zheng, Zhichun Shen, Aixiao Xu, Kai Jiang, Pengyu Wu, Xiang Yang, Xian Chen, Jingwei Shao
The anticancer properties of ursolic acid (UA) and metformin (Met) have been well demonstrated. However, whether these compounds can act synergistically to prevent and treat cancer is not known. We present in this study, the synergism between UA and Met, and that of a new codrug made of UA and Met (UA-Met) against several cancer cell lines. The combination of high concentration of UA (25, 50, 75, 100 μM) and Met (5, 10, 20, 40 mM) resulted in synergetic cytotoxicity on MDA-MB-231 and MCF-7 cells (CI < 0...
December 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29227440/what-is-the-safety-and-efficacy-of-chemical-venous-thromboembolism-prophylaxis-following-vestibular-schwannoma-surgery
#15
Geoffrey C Casazza, Christian A Bowers, Joel D MacDonald, William T Couldwell, Clough Shelton, Richard K Gurgel
OBJECTIVE: The benefit of routine chemical prophylaxis use for venous thromboembolism (VTE) prevention in skull base surgery is controversial. Chemical prophylaxis can prevent undue morbidity and mortality, however there are risks for hemorrhagic complications. STUDY DESIGN: Retrospective case-control. METHODS: A retrospective chart review of patients who underwent surgery for vestibular schwannoma from 2011 to 2016 was performed. Patients were divided by receipt of chemical VTE prophylaxis...
December 7, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29227362/comorbidity-of-airway-inflammatory-diseases-in-chemical-and-building-related-intolerance
#16
Anna-Sara Claeson, Hanna Andersson, Fredrik Wikdahl, Maj-Helen Nyback, Steven Nordin
OBJECTIVES: This study investigated comorbidity in chemical intolerance (CI) and building- related intolerance (BRI) with (i) chronic sinusitis, chronic obstructive pulmonary disease, allergic and non-allergic asthma and allergic rhinitis, and (ii) airway inflammatory symptoms. METHODS: Data from two population-based questionnaire surveys, the Västerbotten and Österbotten Environmental Health Studies was used. The participants were categorized as CI or BRI and referents, and binary logistic regression analysis was applied...
December 8, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29227305/lung-transplantation-for-chronic-obstructive-pulmonary-disease-past-present-and-future-directions
#17
Faisal M Siddiqui, Joshua M Diamond
PURPOSE OF REVIEW: Lung transplantation offers an effective treatment modality for patients with end-stage chronic obstructive pulmonary disease (COPD). The exact determination of when to refer, list, and offer transplant as well as the preferred transplant procedure type remains unclear. Additionally, there are special considerations specific to patients with COPD being considered for lung transplantation, including the implications of single lung transplantation on lung cancer risk, native lung hyperinflation, and overall survival...
December 7, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29227280/proapoptotic-puma-targets-stem-like-breast-cancer-cells-to-suppress-metastasis
#18
Qi Sun, Jacqueline Lesperance, Hiromi Wettersten, Elaine Luterstein, Yoko S DeRose, Alana Welm, David A Cheresh, Jay S Desgrosellier
Breast cancer cells with stem cell properties are key contributors to metastatic disease, and there remains a need to better understand and target these cells in human cancers. Here, we identified rare stem-like cells in patients' tumors characterized by low levels of the proapoptotic molecule p53-upregulated modulator of apoptosis (PUMA) and showed that these cells play a critical role in tumor progression that is independent of clinical subtype. A signaling axis consisting of the integrin αvβ3, Src kinase, and the transcription factor Slug suppresses PUMA in these cells, promoting tumor stemness...
December 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29227032/efficacy-and-safety-of-low-dose-urokinase-for-the-treatment-of-hemodynamically-stable-aecopd-patients-with-acute-pulmonary-thromboembolism
#19
Xiaogang Jing, Guojun Zhang, Beifeng Zhang, Lingling Dai, Xi Wang, Liuqun Jia, Huan Wang, Lin An, Yuanjian Yang, Zhe Cheng
PURPOSE: To assess the incidence of pulmonary thromboembolism (PTE) in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD), and to evaluate the efficacy and safety of low-dose urokinase (UK) thrombolysis therapy when treating hemodynamically stable AECOPD patients with acute PTE (AECOPD-PTE). METHODS: A total of 419 AECOPD patients, including 96 AECOPD-PTE, were enrolled. 30 AECOPD-PTE patients were collected retrospectively and 66 AECOPD-PTE patients were prospectively divided into anticoagulation-only, low-dose UK and standard-dose UK groups...
December 11, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29227024/blood-biomarkers-as-predictors-of-long-term-mortality-in-copd
#20
Angelico Mendy, Erick Forno, Theophile Niyonsenga, Janvier Gasana
BACKGROUND: Blood biomarkers are easily accessible and might reflect chronic obstructive pulmonary disease (COPD) activity. AIM: To determine whether a panel of blood biomarkers (C-reactive protein [CRP], neutrophils, eosinophils, albumin and vitamin D) could predict mortality in COPD. METHODS: we analyzed data from 431 COPD participants to the 2007-2010 National Health and Nutrition Examination Surveys who were followed for a median time of 36 months...
December 11, 2017: Clinical Respiratory Journal
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