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necrotizing pneumonia

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https://www.readbyqxmd.com/read/27926940/inflammasome-independent-nlrp3-restriction-of-a-protective-early-neutrophil-response-to-pulmonary-tularemia
#1
Sivakumar Periasamy, Hongnga T Le, Ellen B Duffy, Heather Chin, Jonathan A Harton
Francisella tularensis (Ft) causes a frequently fatal, acute necrotic pneumonia in humans and animals. Following lethal Ft infection in mice, infiltration of the lungs by predominantly immature myeloid cells and subsequent myeloid cell death drive pathogenesis and host mortality. However, following sub-lethal Ft challenge, more mature myeloid cells are elicited and are protective. In addition, inflammasome-dependent IL-1β and IL-18 are important for protection. As Nlrp3 appears dispensable for resistance to infection with Francisella novicida, we considered its role during infection with the virulent Type A strain SchuS4 and the attenuated Type B live vaccine strain LVS...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27920654/a-rare-cause-of-pulmonary-nodules
#2
Michael Tsuyoshi Chew, Eric Chak, Karen Matsukuma
Crohn's disease is a chronic, idiopathic autoimmune disorder that primarily targets the gastrointestinal (GI) system. It is characterized by transmural inflammation of the GI tract that can occur anywhere from the mouth to the anus. Not infrequently, the disease may also have extraintestinal manifestations (EIMs) that can affect almost any organ system. It is estimated that EIMs affect up to 36% of patients with Crohn's disease, but the incidence and prevalence of pulmonary involvement are variable in the literature and may be as low as 0...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27919708/early-interstitial-lung-disease-in-microscopic-polyangiitis-case-report-and-literature-review
#3
Marcos García-Nava, Heidegger Mateos-Toledo, Ana Patricia Georgina Guevara-Canseco, Cesar Eduardo Infante-González, Diego Alberto Reyes-Nava, Emilio Estrada-Castro
Microscopic polyangiitis (MPA) is a systemic disease included in the Chapel Hill 2012 Classification as necrotizing vasculitis affecting capillaries, venules and arterioles. It usually expresses antineutrophil cytoplasmic antibodies (ANCA) and has a perinuclear immunofluorescence pattern and correlation with anti-myeloperoxidase (MPO) antibodies. Capillaritis with alveolar hemorrhage is the most common manifestation of lung disease. Interstitial lung disease (ILD) is uncommon, with usual interstitial pneumonia being the predominant pattern...
December 2, 2016: Reumatología Clinica
https://www.readbyqxmd.com/read/27899865/necrotizing-pneumonia-caused-by-h1n1-virus-in-a-child-with-total-anomalous-pulmonary-venous-connection-after-cardiac-surgery
#4
Mehmet G Ramoğlu, Tayfun Uçar, Tanıl Kendirli, Zeynep Eyileten, Semra Atalay
Total anomalous pulmonary venous connection is a rare form of congenital heart disease, occurring in only 1.5% of children with congenital heart disease. Although the mortality and morbidity of total anomalous pulmonary venous connection have decreased dramatically due to improvements in surgery, postoperative pulmonary venous obstruction is still a cause of late mortality in patients with corrected total anomalous pulmonary venous connection. Influenza A H1N1, the most common cause of human influenza in 2009, may cause pneumonia presenting with increased disease severity...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27896063/necrotizing-tracheobronchitis-associated-with-rheumatoid-arthritis
#5
Shigehisa Kajikawa, Kazushi Noda, Yasuhiro Nozaki
We report a case of necrotizing tracheobronchitis with rheumatoid arthritis. A 64 year-old-man presented with dry cough and was initially diagnosed with community-acquired pneumonia. The patient was admitted; he received initial antibiotic treatment. The treatment was effective and the symptoms worsened. Bronchoscopy was performed for more thorough examination. It showed that white and soft tissues were on the trachea-bronchus. Transbronchial biopsy of the tracheal lesions revealed necrotic tissue with squamous metaplasia and inflammatory cells...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27891283/streptococcus-intermedius-causing-necrotizing-pneumonia-in-an-immune-competent-female-a-case-report-and-literature-review
#6
Faris Hannoodi, Israa Ali, Hussam Sabbagh, Sarwan Kumar
We report a case of a 52-year-old immunocompetent Caucasian female treated for necrotizing Streptococcus intermedius pneumonia and review available literature of similar cases. Our patient presented with respiratory failure and required hospitalization and treatment in the intensive care unit. Moreover, she required surgical drainage of right lung empyema as well as decortication and resection. The review of literature revealed three cases of S. intermedius pneumonia, one of which was a mortality. Comparison of the published cases showed a highly varied prehospital course and radiological presentations, with a symptomatic phase ranging from 10 days to five months...
2016: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/27888408/extra-intestinal-detection-of-canine-kobuvirus-in-a-puppy-from-southern-brazil
#7
Juliane Ribeiro, Selwyn Arlington Headley, Jaqueline Assumpção Diniz, Alfredo Hajime Tanaka Pereira, Elis Lorenzetti, Amauri Alcindo Alfieri, Alice Fernandes Alfieri
This study presents the pathological, immunohistochemical, and molecular findings associated with the extra-intestinal detection of canine kobuvirus (CaKV) in a 5-month-old Chihuahua puppy, that had a clinical history of bloody-tinged feces. Principal pathological findings were interstitial pneumonia, necrotizing bronchitis, and parvovirus-induced enteritis. Molecular diagnostic methods identified CaKV within the cerebellum, cerebrum, lung, tonsil, and liver. CaKV and rotavirus were not identified within the feces and intestine...
November 25, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27887604/variable-ventilation-improves-pulmonary-function-and-reduces-lung-damage-without-increasing-bacterial-translocation-in-a-rat-model-of-experimental-pneumonia
#8
Raquel F de Magalhães, Cynthia S Samary, Raquel S Santos, Milena V de Oliveira, Nazareth N Rocha, Cintia L Santos, Jamil Kitoko, Carlos A M Silva, Caroline L Hildebrandt, Cassiano F Goncalves-de-Albuquerque, Adriana R Silva, Hugo C Faria-Neto, Vanessa Martins, Vera L Capelozzi, Robert Huhle, Marcelo M Morales, Priscilla Olsen, Paolo Pelosi, Marcelo Gama de Abreu, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Variable ventilation has been shown to improve pulmonary function and reduce lung damage in different models of acute respiratory distress syndrome. Nevertheless, variable ventilation has not been tested during pneumonia. Theoretically, periodic increases in tidal volume (VT) and airway pressures might worsen the impairment of alveolar barrier function usually seen in pneumonia and could increase bacterial translocation into the bloodstream. We investigated the impact of variable ventilation on lung function and histologic damage, as well as markers of lung inflammation, epithelial and endothelial cell damage, and alveolar stress, and bacterial translocation in experimental pneumonia...
November 25, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27884603/cranial-nerve-involvement-in-charcot-marie-tooth-disease
#9
Nirav Das, Savannah Kandalaft, Xiao Wu, Ajay Malhotra
BACKGROUND: Charcot-Marie-Tooth Disease (CMT) is a rare disorder with less than 200,000 cases reported in the US every year, making diagnosis challenging. MR and CT imaging has become more common in the evaluation of CMT to identify areas of disease involvement. CASE REPORT: A 27-year-old female from Guatemala with a past history of polio initially presented to the emergency room for necrotizing pneumonia. MRI images demonstrated smoothly enlarged, mildly enhancing trigeminal nerves...
November 21, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27875572/iron-regulated-phospholipase-c-activity-contributes-to-the-cytolytic-activity-and-virulence-of-acinetobacter-baumannii
#10
Steven E Fiester, Brock A Arivett, Robert E Schmidt, Amber C Beckett, Tomislav Ticak, Mary V Carrier, Rajarshi Ghosh, Emily J Ohneck, Maeva L Metz, Marlo K Sellin Jeffries, Luis A Actis
Acinetobacter baumannii is an opportunistic Gram-negative pathogen that causes a wide range of infections including pneumonia, septicemia, necrotizing fasciitis and severe wound and urinary tract infections. Analysis of A. baumannii representative strains grown in Chelex 100-treated medium for hemolytic activity demonstrated that this pathogen is increasingly hemolytic to sheep, human and horse erythrocytes, which interestingly contain increasing amounts of phosphatidylcholine in their membranes. Bioinformatic, genetic and functional analyses of 19 A...
2016: PloS One
https://www.readbyqxmd.com/read/27872648/a-58-year-old-female-with-progressive-cough-and-right-shoulder-pain
#11
Sanket R Thakore, Faisal A Khasawneh
Cavitary pneumonia in immunocompromised patients is a challenging entity. Establishing accurate diagnosis and starting effective antibiotics are essential steps towards improving outcome. A 58-year-old stem cell transplant patient was admitted to the hospital with necrotizing pneumonia caused by nocardia. The disease progressed despite of aggrieve antimicrobial therapy. Nocardiosis continues to be a difficult disease to diagnose and treat.
2016: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/27862706/clinical-relevance-of-necrotizing-change-in-patients-with-community-acquired-pneumonia
#12
Hyewon Seo, Seung-Ick Cha, Kyung-Min Shin, Jae-Kwang Lim, Seung-Soo Yoo, Jaehee Lee, Shin-Yup Lee, Chang-Ho Kim, Jae-Yong Park, Won-Kee Lee
BACKGROUND AND OBJECTIVE: Few studies have analysed a large number of patients with necrotizing pneumonia (NP) diagnosed based on computed tomography (CT) scans. The aim of the present study was to document the incidence and clinical features of NP in patients with community-acquired pneumonia (CAP). METHODS: This retrospective study was conducted on CAP patients who had been admitted to a tertiary referral centre and who had available enhanced CT scan images. Patients were allocated into NP and non-NP groups, and they were compared with respect to various clinical variables...
November 8, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27853493/implantability-complications-and-follow-up-after-transjugular-intrahepatic-portosystemic-stent-shunt-creation-with-the-6f-self-expanding-sinus-superflex-visual-stent
#13
Daniel Spira, Jakub Wiskirchen, Ulrich Lauer, Dominik Ketelsen, Konstantin Nikolaou, Benjamin Wiesinger
BACKGROUND: The transjugular intrahepatic portosystemic stent-shunt (TIPSS) builds a shortcut between the portal vein and a liver vein, and represents a sophisticated alternative to open surgery in the management of portal hypertension or its complications. OBJECTIVES: To describe clinical experiences with a low-profile nitinol stent system in TIPSS creation, and to assess primary and long-term success. PATIENTS AND METHODS: Twenty-six patients (5 females, 21 males; mean age 54...
July 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27851616/1982-group-a-streptococcal-bacteremia-from-necrotizing-pneumonia-in-a-healthy-adult-a-rare-case
#14
Komal Patel, Vishad Sheth, Kruthika Reddy, Ana Maheshwari, Junad Chowdhury, Nicolas Castellano
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851438/1803-combination-antibiotic-therapy-for-the-treatment-of-severe-necrotizing-mrsa-pneumonia
#15
Andy Kim, Kelsey Gray, Joy Kehoe
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851408/1773-a-review-of-a-rare-case-of-necrotizing-pneumonia-and-septicemia-caused-by-fusobacterium-mortiferum
#16
Aashrai Sai Venkat Gudlavalleti, Siddharth Shah, Amit Sharma, Elizabeth Asiago-Reddy
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27843429/paraneoplastic-necrotizing-autoimmune-myopathy-in-a-patient-undergoing-laparoscopic-pancreatoduodenectomy-for-distal-cholangiocarcinoma
#17
Stefan van Dijk, Anneke J van der Kooi, Eleonora Aronica, Thomas M van Gulik, Olivier R Busch, Marc G Besselink
A 73-year-old male presented with jaundice and severe muscle weakness. He was diagnosed with distal cholangiocarcinoma and paraneoplastic necrotizing autoimmune myopathy (NAM). Treatment of NAM consisted of dexamethasone pulse therapy, prednisone, and single-dose intravenous immunoglobulin. The distal cholangiocarcinoma was resected through a total laparoscopic pancreatoduodenectomy. After hospital discharge, muscle strength initially increased postoperatively; however, pneumonia resulted in the deterioration of his general condition and death 5 months after the diagnosis of paraneoplastic NAM...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27821087/comparing-culture-and-molecular-methods-for-the-identification-of-microorganisms-involved-in-necrotizing-soft-tissue-infections
#18
Vibeke Børsholt Rudkjøbing, Trine Rolighed Thomsen, Yijuan Xu, Rachael Melton-Kreft, Azad Ahmed, Steffen Eickhardt, Thomas Bjarnsholt, Steen Seier Poulsen, Per Halkjær Nielsen, Joshua P Earl, Garth D Ehrlich, Claus Moser
BACKGROUND: Necrotizing soft tissue infections (NSTIs) are a group of infections affecting all soft tissues. NSTI involves necrosis of the afflicted tissue and is potentially life threatening due to major and rapid destruction of tissue, which often leads to septic shock and organ failure. The gold standard for identification of pathogens is culture; however molecular methods for identification of microorganisms may provide a more rapid result and may be able to identify additional microorganisms that are not detected by culture...
November 8, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27795441/a-novel-porcine-circovirus-distantly-related-to-known-circoviruses-is-associated-with-porcine-dermatitis-and-nephropathy-syndrome-and-reproductive-failure
#19
Rachel Palinski, Pablo Piñeyro, Pengcheng Shang, Fangfeng Yuan, Rui Guo, Ying Fang, Emily Byers, Ben M Hause
: Porcine circovirus associated disease (PCVAD) is clinically manifested by postweaning multisystemic wasting syndrome (PMWS), respiratory and enteric disease, reproductive failure, and porcine dermatitis and nephropathy syndrome (PDNS). Porcine circovirus type 2 (PCV2) is an essential component of PCVAD although an etiologic role in PDNS is not well established. Here, a novel circovirus, designated porcine circovirus 3 (PCV3), was identified in sows that died acutely with PDNS-like clinical signs...
October 26, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27793655/infectious-burden-and-semen-parameters
#20
E Moretti, N Figura, M S Campagna, F Iacoponi, S Gonnelli, G Collodel
OBJECTIVES: To investigate the relationship between chronic infections detected in serum and semen quality. The pathogen burden is a concept consisting in the observation that, in patients with heart disease, damaging effects of the coronary arteries increase concomitantly with the number of agents responsible of chronic infections to which patients mounted a serological response. Previous observations that H. pylori infection may reduce the semen quality prompted us to perform the present study...
October 25, 2016: Urology
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