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chronic obstructive

Lan-Eng Tan, Razak A M, Chor-Shen Lim
Patients with lung cancer often have chronic obstructive pulmonary disease (COPD), but the impact of COPD on postresection survival of patients with lung cancer is unclear. This study evaluated the impact of COPD on survival of patients with lung cancer following pulmonary resection. Databases searched included PubMed, Cochrane, and Embase until March 2016. Study outcomes were overall survival and pulmonary complication rate (pneumonia, bronchial fistula, and prolonged mechanical ventilation). 6 studies with a total of 3761 patients were included...
October 21, 2016: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
Xu Chu, Xiao-Ju Liu, Jing-Man Qiu, Xiao-Li Zeng, Hai-Rong Bao, Juan Shu
Astragalus and Codonopsis pilosula are used for their immunomodulatory and anti-inflammatory effects. Here, we investigated the effects of Astragalus polysaccharides (APS) and Codonopsis pilosula polysaccharides (CPP) on alveolar macrophage (AM) phagocytosis and inflammation in chronic obstructive pulmonary disease (COPD) associated with exposure to particulate matter with a mean aerodynamic diameter ≤2.5μm (PM2.5). A mouse model of COPD was established by cigarette smoke exposure. PM2.5 exposure was performed by inhalation of a PM2...
October 14, 2016: Environmental Toxicology and Pharmacology
Anuja Bandyopadhyay, A Ioana Cristea, Stephanie D Davis, Veda L Ackerman, James E Slaven, Hasnaa E Jalou, Deborah C Givan, Ameet Daftary
RATIONALE: There is a lack of evidence regarding factors associated with failure of tracheostomy decannulation. OBJECTIVES: We aimed to identify characteristics of pediatric patients who fail a tracheostomy decannulation challenge Methods: A retrospective review was performed on all patients who had a decannulation challenge at a tertiary care center from June 2006 to October 2013. Tracheostomy decannulation failure was defined as reinsertion of the tracheostomy tube within 6 months of the challenge...
October 21, 2016: Annals of the American Thoracic Society
Michael E Rezaee, Elizabeth L Nichols, Mandeep Sidhu, Jeremiah R Brown
BACKGROUND: Pulmonary hypertension (PH) is a well-recognized complication of left ventricular heart failure (HF). HYPOTHESIS: Differences exist in demographic, clinical, hemodynamic, and survival characteristics of patients with left ventricular HF who have combined postcapillary and precapillary PH (CpcPH), isolated postcapillary PH, or no PH. METHODS: A secondary data analysis was conducted using a large prospective database of patients undergoing right heart catheterization from 1994 to 2012...
October 21, 2016: Clinical Cardiology
Vina Tresa, Afshan Yaseen, Ali Asghar Lanewala, Seema Hashmi, Sabeeta Khatri, Irshad Ali, Muhammed Mubarak
BACKGROUND: The reported prevalence rates and etiologies of acute kidney injury (AKI) are quite variable in different regions of the world. The current study was planned to determine the etiology, clinical profile, and short-term outcome of pediatric AKI at our hospital. METHODS: A prospective, observational study was carried out from April 2014 to March 2015. All pediatric patients (1 month to ≤15 years) diagnosed as AKI using modified pRIFLE criteria were studied and followed for 3 months to document short-term outcome...
October 21, 2016: Renal Failure
Fernando J Martinez, Jørgen Vestbo, Julie A Anderson, Robert D Brook, Bartolome R Celli, Nicholas J Cowans, Courtney Crim, Mark Dransfield, Sally Kilbride, Julie Yates, David E Newby, Dennis Niewoehner, Peter Ma Calverley
BACKGROUND: Inhaled corticosteroids have been shown to decrease exacerbations in COPD patients with moderate to severe COPD. Their effect in patients with milder airflow obstruction remains unclear. OBJECTIVE: This was an analysis of exacerbations in the Study to Understand Mortality and MorbidITy (SUMMIT) study. DESIGN: In a double-blind randomized controlled trial, once daily inhaled placebo, fluticasone furoate (FF, 100 μg), vilanterol (VI, 25 μg) or the combination (FF/VI) was administered...
October 21, 2016: American Journal of Respiratory and Critical Care Medicine
Christine M Freeman, Jeffrey L Curtis
Hallmarks of chronic obstructive pulmonary disease (COPD) include innate inflammation and remodeling of small airways that begin in early disease and the development of lung lymphoid follicles (LLF), indicative of adaptive immunity, in more spirometrically-severe stages. Common to these processes in all stages is orchestration by dendritic cells (DC). Recently improved understanding of the analogous lung DC subsets in humans and mice has allowed for better integration and interpretation of the experimental and clinical pathological literature...
October 21, 2016: American Journal of Respiratory Cell and Molecular Biology
J R Baker, C Vuppusetty, T Colley, Andriana I Papaioannou, P Fenwick, Louise Donnelly, K Ito, P J Barnes
Sirtuin-1 (SIRT1) and SIRT6, NAD(+)-dependent Class III protein deacetylases, are putative anti-aging enzymes, down-regulated in patients with chronic obstructive pulmonary disease (COPD), which is characterized by the accelerated ageing of the lung and associated with increased oxidative stress. Here, we show that oxidative stress (hydrogen peroxide) selectively elevates microRNA-34a (miR-34a) but not the related miR-34b/c, with concomitant reduction of SIRT1/-6 in bronchial epithelial cells (BEAS2B), which was also observed in peripheral lung samples from patients with COPD...
October 21, 2016: Scientific Reports
C S Bruells, G Marx
Diaphragm function is crucial for patient outcome in the ICU setting and during the treatment period. The occurrence of an insufficiency of the respiratory pump, which is predominantly formed by the diaphragm, may result in intubation after failure of noninvasive ventilation. Especially patients suffering from chronic obstructive pulmonary disease are in danger of hypercapnic respiratory failure. Changes in biomechanical properties and fiber texture of the diaphragm are further cofactors directly leading to a need for intubation and mechanical ventilation...
October 20, 2016: Medizinische Klinik, Intensivmedizin und Notfallmedizin
Guigang Li, Jingmin Guo, Rong Liu, Weikun Hu, Lingjuan Xu, Juan Wang, Subo Cai, Hong Zhang, Yingting Zhu
Background: To explore the prevalence of lacrimal duct obstruction in patients with infectious keratitis, and the necessity of lacrimal duct dredge in the treatment of human infectious keratitis. Methodology/Principle Findings: The design is prospective, non-control case series. Thirty-one eyes from twenty-eight continuous patients with infectious keratitis were included in this study. The presence/absence of lacrimal duct obstruction was determined by the lacrimal duct irrigation test. The diagnosis of infectious keratitis was made based on clinical manifestations, cornea scraping microscopic examination and bacterial/fungus culture...
2016: International Journal of Medical Sciences
Yoonki Hong, You-Sun Kim, Seok-Ho Hong, Yeon-Mok Oh
There is no therapy currently available that influences the natural history of disease progression in patients with chronic obstructive pulmonary disease (COPD). Although stem cell therapy is considered a potential therapeutic option in COPD, there are no clinical trials proving definitive therapeutic effects in patients with COPD. Recently, it was reported that pioglitazone might potentiate the therapeutic effects of stem cells in patients with heart or liver disease. To test the capacity of pioglitazone pretreatment of stem cells for emphysema repair, we evaluated the therapeutic effects of pioglitazone-pretreated human adipose-derived mesenchymal stem cells (ASCs) on elastase-induced or cigarette smoke-induced emphysema in mice...
October 21, 2016: Experimental & Molecular Medicine
Rishabh Sehgal, Cherry X Cheung, Tristram Hills, Aqueel Waris, Donagh Healy, Tahir Khan
Jejunal pseudo-diverticulosis is a rare acquired herniation of the mucosa and submucosa through weakened areas of the muscularis mucosa of the mesenteric aspect of the bowel. They are asymptomatic in the majority of cases; however, they can present with a wide spectrum of non-specific symptoms such as chronic abdominal discomfort, postprandial flatulence, diarrhoea, malabsorption and steattorhoea. In up to 15% of cases, more serious acute complications may arise such as the development of intestinal obstruction, haemorrhage or as in our case, localized peritonitis secondary to perforation...
October 7, 2016: Journal of Surgical Case Reports
Joshua W Hustedt, Andrew Chung, Daniel D Bohl, Neil Olmscheid, Scott Edwards
PURPOSE: The clinical decision to replant an amputated digit is driven primarily by surgical indication. However, the extent to which patient comorbidity should play into this decision is less well defined. This study was designed to determine the effect of patient comorbidities on the success, risk, and cost of digital replantation. METHODS: All amputation injuries and digital replantation procedures captured by the National Inpatient Sample during 2001 to 2012 were identified...
October 17, 2016: Journal of Hand Surgery
Jihe Li, Dongxia Tong, Juan Liu, Fuyang Chen, Yongbin Shen
Oroxylin A, a natural flavonoid isolated from the medicinal herb Scutellaria baicalensis Georgi, has been reported to have anti-inflammatory and antioxidant properties. However, the effect of oroxylin A on cigarette smoke (CS)-induced lung inflammation remains unclear. In this study, the ability of oroxylin A to protect against CS-induced lung inflammation was detected in vivo and in vitro. Oroxylin A was administered intraperitoneally to mice 2h prior CS exposure every day for five consecutive days. BEAS-2B bronchial epithelial cells and RAW264...
October 17, 2016: International Immunopharmacology
Steffen T Simon, Irene J Higginson, Sara Booth, Richard Harding, Vera Weingärtner, Claudia Bausewein
BACKGROUND: This is an updated version of the original Cochrane review published in Issue 1, 2010, on 'Benzodiazepines for the relief of breathlessness in advanced malignant and non-malignant diseases in adults'. Breathlessness is one of the most common symptoms experienced in the advanced stages of malignant and non-malignant disease. Benzodiazepines are widely used for the relief of breathlessness in advanced diseases and are regularly recommended in the literature. At the time of the previously published Cochrane review, there was no evidence for a beneficial effect of benzodiazepines for the relief of breathlessness in people with advanced cancer and chronic obstructive pulmonary disease (COPD)...
October 20, 2016: Cochrane Database of Systematic Reviews
Javier A Longoria, Miwa Fujiwara, Catalina Guerra, Jeffrey L Lee, Catherine S H Sassoon, Farhad Mazdisnian
BACKGROUND: Expiratory central airway collapse is an increasingly recognized abnormality of the central airways and may be present in as many as 22% of patients evaluated for chronic obstructive pulmonary disease and/or asthma. Many current treatment options require invasive procedures that have been shown to cause significant morbidity and mortality. To test the hypothesis that Teflon injection will induce sufficient fibroblast proliferation and collagen deposition, we evaluated the time course on the effect of Teflon injection in the posterior membranous trachea on the histopathology of the tracheobronchial tree...
October 2016: Journal of Bronchology & Interventional Pulmonology
Walter Young, Shelley Karp, Peter Bialick, Cindy Liverance, Ashley Seder, Erica Berg, Liberty Karp
INTRODUCTION: Exposure to secondhand smoke is problematic for residents living in multiunit housing, as the smoke migrates through shared ventilation systems, unsealed cracks, and door spaces. The objective of our research was to assess resident exposure to secondhand smoke, support for no-smoking policies, and the health impacts of no-smoking policies in multiunit housing. METHODS: Surveys of 312 heads of households who resided in 1 of 3 multiunit buildings managed by a Colorado public housing authority were administered before and after implementation of a no-smoking policy that prohibited smoking in all resident apartments and all indoor common areas...
October 20, 2016: Preventing Chronic Disease
Hui Han, Jinzhou Zhu, Yaqiong Wang, Zhengbin Zhu, Yanjia Chen, Lin Lu, Wei Jin, Xiaoxiang Yan, Ruiyan Zhang
Renal fibrosis is a significant threat to public health globally. Diverse primary aetiologies eventually result in chronic kidney disease (CKD) and immune cells influence this process. The roles of monocytes/macrophages, T cells and mast cells have been carefully examined, whilst only a few studies have focused on the effect of B cells. We investigated B cell function in tubulointerstitial fibrosis induced by unilateral ureteral obstruction (UUO), using genetic B cell-deficient μMT mice or CD20 antibody-mediated B cell depleted mice...
October 20, 2016: Journal of Pathology
Josefin Sundh, Scott Montgomery, Mikael Hasselgren, Mary Kämpe, Christer Janson, Björn Ställberg, Karin Lisspers
Health status is a prognostic factor included in the assessment of chronic obstructive pulmonary disease (COPD). The aim of our study was to examine the associations of clinical factors with change in health status over a 7-year follow-up period. In 2005, 970 randomly selected primary and secondary care patients with a COPD diagnosis completed questionnaires including the Clinical COPD Questionnaire (CCQ); and in 2012, 413 completed the CCQ questionnaire again. Linear regression used difference in mean total CCQ score between 2005 and 2012 as the dependent variable...
October 20, 2016: NPJ Primary Care Respiratory Medicine
Lee M Bass, Stanley Kim, Riccardo Superina, Saeed Mohammad
Portal hypertension secondary to portal vein obstruction following liver transplant occurs in 5%-10% of children. Jejunal varices are uncommon in this group. We present a case series of children with significant GI blood loss, negative upper endoscopy, and jejunal varices detected by CE. Case series of patients who had CE for chronic GI blood loss following liver transplantation. Three patients who had their initial transplants at a median age of 7 months were identified at our institution presenting at a median age of 8 years (range 7-16 years) with a median Hgb of 2...
October 20, 2016: Pediatric Transplantation
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