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Organizing pneumonia

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https://www.readbyqxmd.com/read/28544570/relative-susceptibility-of-airway-organisms-to-antimicrobial-effects-of-nitric-oxide
#1
Alan D Workman, Ryan M Carey, Michael A Kohanski, David W Kennedy, James N Palmer, Nithin D Adappa, Noam A Cohen
BACKGROUND: Nitric oxide (NO) is released in the airway as a critical component of innate immune defense against invading pathogenic organisms. It is well documented that bacteriostatic and bactericidal effects of NO are concentration-dependent. However, few data exist comparing relative susceptibility of common pathogens to NO at physiologic concentrations. In this study we evaluated the effects of NO on 4 common airway bacteria and 1 fungus, and examined the potential implications of discrepancies in sensitivity...
May 25, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28543778/oral-flora-in-acute-stroke-patients-a-prospective-exploratory-observational-study
#2
Elizabeth Boaden, Mary Lyons, Sim K Singhrao, Hazel Dickinson, Michael Leathley, Catherine E Lightbody, Alison McLoughlin, Zarine Khan, Stjohn Crean, Craig Smith, Susan Higham, Caroline Watkins
OBJECTIVE: To describe the bacterial profile of the oral flora during the first 2 weeks following a stroke, examining changes in the condition of the oral cavity and infections. BACKGROUND: Dysphagia is common after a stroke and can lead to aspiration pneumonia. Oral flora changes associated with stroke have been implicated as a possible source of bacteria that can cause systemic infections. MATERIALS AND METHODS: Seventy-seven participants were recruited over a period of 9 months...
May 22, 2017: Gerodontology
https://www.readbyqxmd.com/read/28542162/carbapenem-resistant-klebsiella-pneumoniae-in-barbados-driving-change-in-practice-at-the-national-level
#3
Corey Forde, Bryan Stierman, Pilar Ramon-Pardo, Thais Dos Santos, Nalini Singh
INTRODUCTION: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is of growing concern globally. The risk for transmission of antimicrobial resistant organisms across several continents to the Caribbean is a real one given its tourism industry. After a cluster of cases of CRKP were detected, several studies detailed in this report were initiated to better characterize the problem. METHODS: A hospital-wide point prevalence study and active surveillance were performed at Queen Elizabeth Hospital (QEH) in Barbados in 2013 to assess the prevalence of CRKP infection/colonization...
2017: PloS One
https://www.readbyqxmd.com/read/28540205/clinicopathological-spectrum-of-snake-bite-induced-acute-kidney-injury-from-india
#4
Sanjay Vikrant, Ajay Jaryal, Anupam Parashar
AIM: To study the clinico-pathological spectrum of snake bite-induced acute kidney injury (AKI). METHODS: A retrospective study of patients admitted at Indira Gandhi Medical College Hospital, Shimla with snake bite-induced AKI from July 2003 to June 2016. Medical records were evaluated for patient's information on demographic, clinical characteristics, complications and outcome. Outcomes of duration of hospital stay, requirement for intensive care unit support, treatment with dialysis, survival and mortality were analyzed...
May 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28539503/mycoplasma-pneumoniae-from-the-respiratory-tract-and-beyond
#5
REVIEW
Ken B Waites, Li Xiao, Yang Liu, Mitchell F Balish, T Prescott Atkinson
Mycoplasma pneumoniae is an important cause of respiratory tract infections in children as well as adults that can range in severity from mild to life-threatening. Over the past several years there has been much new information published concerning infections caused by this organism. New molecular-based tests for M. pneumoniae detection are now commercially available in the United States, and advances in molecular typing systems have enhanced understanding of the epidemiology of infections. More strains have had their entire genome sequences published, providing additional insights into pathogenic mechanisms...
July 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28536739/histological-diagnoses-of-military-personnel-undergoing-lung-biopsy-after-deployment-to-southwest-asia
#6
Cristian S Madar, Michael R Lewin-Smith, Teri J Franks, Russell A Harley, John S Klaric, Michael J Morris
INTRODUCTION: The current understanding of associations between lung disease and military deployment to Southwest Asia, including Iraq and Afghanistan, is both controversial and limited. We sought to clarify the relation between military deployment and biopsy-proven lung disease. METHODS: Retrospective data were analyzed for military personnel with non-neoplastic lung biopsies evaluated at the Armed Forces Institute of Pathology or Joint Pathology Center (January 2005 to December 2012)...
May 23, 2017: Lung
https://www.readbyqxmd.com/read/28536682/a-case-of-intramural-coronary-amyloidosis-associated-with-hemodialysis
#7
Faisal M Huq Ronny, George Kleinman, Paul James Kurtin, John Thomas Fallon
Dialysis-related amyloidosis predominantly occurs in osteo-articular structures and dialysis-related amyloid (DRA) substances also deposit in extra-articular tissues. Clinical manifestations of DRA include odynophagia, gastrointestinal hemorrhage, intestinal obstruction, kidney stones, myocardial dysfunction, and subcutaneous tumors. The pathological characteristics of DRA in the heart of hemodialysis patients have rarely been reported. We report the case of a 73-year-old female with a history of cerebral palsy and end-stage renal disease status post two failed renal transplants who had been on hemodialysis for 30 years...
January 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28534218/flexible-bronchoscopy-in-non-resolving-pneumonia
#8
Javeed Iqbal Bhat, Wasim Ahmad Wani, Qazi Iqbal Ahmad, Bashir Ahmad Charoo, Syed Wajid Ali, Ambreen Ali Ahangar, Muzafar Ahmad
OBJECTIVE: To study the utility of diagnostic flexible bronchoscopy and bronchoalveolar lavage (BAL) in children with non-resolving pneumonia. METHODS: This was a cross-sectional study conducted in a tertiary care hospital from July 2015 through June 2016. Fifty-two consecutive children of both genders from 1 mo to 14 y of age with a diagnosis of non-resolving pneumonia were included. Flexible bronchoscopy was done in all patients with or without bronchoalveolar lavage (BAL)...
May 23, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28533769/celecoxib-enhances-the-efficacy-of-low-dose-antibiotic-treatment-against-polymicrobial-sepsis-in-mice-and-clinical-isolates-of-eskape-pathogens
#9
Madhavi Annamanedi, Gajapati Y N Varma, K Anuradha, Arunasree M Kalle
Treatment of multidrug resistant bacterial infections has been a great challenge globally. Previous studies including our study have highlighted the use of celecoxib, a non-steroidal anti-inflammatory drug in combination with antibiotic has decreased the minimal inhibitory concentration to limit Staphylococcus aureus infection. However, the efficacy of this combinatorial treatment against various pathogenic bacteria is not determined. Therefore, we have evaluated the potential use of celecoxib in combination with low doses of antibiotic in limiting Gram-positive and Gram-negative bacteria in vivo in murine polymicrobial sepsis developed by cecum ligation and puncture (CLP) method and against clinically isolated human ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28531802/anti-inflammatory-and-antioxidant-effect-of-cerium-dioxide-nanoparticles-immobilized-on-the-surface-of-silica-nanoparticles-in-rat-experimental-pneumonia
#10
Z Serebrovska, R J Swanson, V Portnichenko, A Shysh, S Pavlovich, L Tumanovska, A Dorovskych, V Lysenko, V Tertykh, Y Bolbukh, V Dosenko
A massage with the potent counter-inflammatory material, cerium dioxide nanoparticles, is promising and the antioxidant properties of CeO2 are considered the main, if not the only, mechanism of this action. Nevertheless, the elimination of ceria nano-particles from the organism is very slow and there is a strong concern for toxic effect of ceria due to its accumulation. To overcome this problem, we engineered a combined material in which cerium nanoparticles were immobilized on the surface of silica nanoparticles (CeO2 NP), which is shown to be easily removed from an organism and could be used as carriers for nano-ceria...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28526792/environmental-spread-of-ndm-1-producing-multi-drug-resistant-bacteria-in-dhaka-bangladesh
#11
Mohammad Aminul Islam, Moydul Islam, Rashedul Hasan, M Iqbal Hossain, Ashikun Nabi, Mahdia Rahman, Wil H F Goessens, Hubert P Endtz, Alexandria B Boehm, Shah M Faruque
Resistance to carbapenem antibiotics through the production of New Delhi Metallo-β-lactamase-1 (NDM-1) constitutes an emerging challenge in the treatment of bacterial infections. To monitor possible source of spread of these organisms in Dhaka, Bangladesh, we conducted comparative analysis of waste water samples from hospital adjacent areas (HAR) and from community areas (COM) as well as public tap water samples for the occurrence and characteristics of NDM-1 producing bacteria. Of 72 HAR samples tested 51 (71%) were positive for NDM-1-producing bacteria as evidenced by phenotypic tests and the presence of blaNDM-1 gene, compared to 5 of 41 (12...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28526018/infection-mediated-asthma-etiology-mechanisms-and-treatment-options-with-focus-on-chlamydia-pneumoniae-and-macrolides
#12
REVIEW
Wilmore C Webley, David L Hahn
Asthma is a chronic respiratory disease characterized by reversible airway obstruction and airway hyperresponsiveness to non-specific bronchoconstriction agonists as the primary underlying pathophysiology. The worldwide incidence of asthma has increased dramatically in the last 40 years. According to World Health Organization (WHO) estimates, over 300 million children and adults worldwide currently suffer from this incurable disease and 255,000 die from the disease each year. It is now well accepted that asthma is a heterogeneous syndrome and many clinical subtypes have been described...
May 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28520867/activity-of-ceftolozane-tazobactam-against-surveillance-and-problem-enterobacteriaceae-pseudomonas-aeruginosa-and-non-fermenters-from-the-british-isles
#13
David M Livermore, Shazad Mushtaq, Daniele Meunier, Katie L Hopkins, Robert Hill, Rachael Adkin, Aiysha Chaudhry, Rachel Pike, Peter Staves, Neil Woodford
Background: We assessed the activity of ceftolozane/tazobactam against consecutive isolates collected in the BSAC Bacteraemia Surveillance from 2011 to 2015 and against 'problem' isolates sent to the UK national reference laboratory from July 2015, when routine testing began. Methods: Susceptibility testing was by BSAC agar dilution with resistance mechanisms identified by PCR and interpretive reading. Results: Data were reviewed for 6080 BSAC surveillance isolates and 5473 referred organisms...
May 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28513576/biofilm-is-a-major-virulence-determinant-in-bacterial-colonization-of-chronic-skin-ulcers-independently-from-the-multidrug-resistant-phenotype
#14
Enea Gino Di Domenico, Ilaria Farulla, Grazia Prignano, Maria Teresa Gallo, Matteo Vespaziani, Ilaria Cavallo, Isabella Sperduti, Martina Pontone, Valentina Bordignon, Laura Cilli, Alessandra De Santis, Fabiola Di Salvo, Fulvia Pimpinelli, Ilaria Lesnoni La Parola, Luigi Toma, Fabrizio Ensoli
Bacterial biofilm is a major factor in delayed wound healing and high levels of biofilm production have been repeatedly described in multidrug resistant organisms (MDROs). Nevertheless, a quantitative correlation between biofilm production and the profile of antimicrobial drug resistance in delayed wound healing remains to be determined. Microbial identification, antibiotic susceptibility and biofilm production were assessed in 135 clinical isolates from 87 patients. Gram-negative bacteria were the most represented microorganisms (60...
May 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28512413/two-cases-of-nivolumab-re-administration-after-pneumonitis-as-immune-related-adverse-events
#15
Keisuke Imafuku, Koji Yoshino, Kei Yamaguchi, Satoshi Tsuboi, Kuniaki Ohara, Hiroo Hata
Nivolumab is a recently approved medication for the treatment of unresectable malignant melanoma. Many immune-related adverse events (irAEs) associated with nivolumab have been reported, such as pneumonitis, hepatitis, dermatitis, and thyroiditis. Prednisolone can effectively treat irAEs. However, it is unclear how or if nivolumab should be administered to patients after they have experienced an irAE. Herein, we show 2 patients who underwent pneumonitis as irAE. Case 1 demonstrated a cryptogenic organizing pneumonia pattern in the CT scan and case 2 had a diffuse alveolar damage (DAD) pattern...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28512093/population-genomic-analysis-of-1-777-extended-spectrum-beta-lactamase-producing-klebsiella-pneumoniae-isolates-houston-texas-unexpected-abundance-of-clonal-group-307
#16
S Wesley Long, Randall J Olsen, Todd N Eagar, Stephen B Beres, Picheng Zhao, James J Davis, Thomas Brettin, Fangfang Xia, James M Musser
Klebsiella pneumoniae is a major human pathogen responsible for high morbidity and mortality rates. The emergence and spread of strains resistant to multiple antimicrobial agents and documented large nosocomial outbreaks are especially concerning. To develop new therapeutic strategies for K. pneumoniae, it is imperative to understand the population genomic structure of strains causing human infections. To address this knowledge gap, we sequenced the genomes of 1,777 extended-spectrum beta-lactamase-producing K...
May 16, 2017: MBio
https://www.readbyqxmd.com/read/28509971/description-of-chryseobacterium-timonianum-sp-nov-isolated-from-a-patient-with-pneumonia
#17
Rita Abou Abdallah, Teresa Cimmino, Sophie Baron, Frédéric Cadoret, Caroline Michelle, Didier Raoult, Pierre-Edouard Fournier, Fadi Bittar
Using a polyphasic taxonomic strategy, an aerobic, Gram-negative, non-motile, yellow pigmented rod isolated from a sputum sample of a patient with pneumonia was characterised. This bacterial strain, designated G972(T), could not be identified by our systematic MALDI-TOF screening on a MicroFlex. This led to the sequencing of the 16S rRNA gene, which shows 98.57% sequence identity with that of Chryseobacterium indologenes 16777(T), the phylogenetic closely related type strain of a species with standing in nomenclature, which putatively classifies it as a new species...
May 16, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28506688/human-immunodeficiency-virus-and-fungal-infections
#18
REVIEW
Jeannette Guarner
The discovery of HIV was largely due to the presence of Pneumocystis pneumonia (PCP) in young patients that did not have the usual known causes of immune deficiencies in the early 1980s. Currently, treatment with highly active anti-retroviral therapy (HAART) and the use of prophylaxis for PCP have lowered the frequency of fungal infections; however, these infections continue to cause morbidity and mortality in those patients that fall out or are not in care. The frequency of specific fungal diseases in HIV patients will depend on the prevalence of fungi in the particular geographic location...
April 8, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28506672/comparison-of-the-nosocomial-pneumonia-mortality-prediction-npmp-model-with-standard-mortality-prediction-tools
#19
M Srinivasan, N Shetty, S Gadekari, G Thunga, K Rao, V Kunhikatta
BACKGROUND: Severity or mortality prediction of nosocomial pneumonia could aid in the effective triage of patients and assisting physicians. AIM: To compare various severity assessment scoring systems for predicting intensive care unit (ICU) mortality in nosocomial pneumonia patients. METHODS: A prospective cohort study was conducted in a tertiary care university-affiliated hospital in Manipal, India. One hundred patients with nosocomial pneumonia, admitted in the ICUs who developed pneumonia after >48h of admission, were included...
April 15, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28505159/infectious-disease-ward-admission-positively-influences-p-jiroveci-pneumonia-pjp-outcome-a-retrospective-analysis-of-116-hiv-positive-and-hiv-negative-immunocompromised-patients
#20
Alessandra Ricciardi, Elisa Gentilotti, Luigi Coppola, Gaetano Maffongelli, Carlotta Cerva, Vincenzo Malagnino, Alessia Mari, Ambra Di Veroli, Federica Berrilli, Fabiana Apice, Nicola Toschi, David Di Cave, Saverio Giuseppe Parisi, Massimo Andreoni, Loredana Sarmati
P. jiroveci (Pj) causes a potentially fatal pneumonia in immunocompromised patients and the factors associated with a bad outcome are poorly understood. A retrospective analysis on Pj pneumonia (PjP) cases occurring in Tor Vergata University Hospital, Italy, during the period 2011-2015. The patients' demographic, clinical and radiological characteristics and the Pj genotypes were considered. The study population included 116 patients, 37.9% of whom had haematological malignancy or underwent haematological stem cell transplantation (HSCT), 22...
2017: PloS One
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