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https://www.readbyqxmd.com/read/27904052/recent-advances-in-the-diagnosis-of-pneumocystis-pneumonia
#1
Yinggai Song, Yi Ren, Xiaowen Wang, Ruoyu Li
Pneumocystis jirovecii is a prototypical opportunistic pathogen, causing an asymptomatic or mild infection in normal hosts and fulminating pneumonia (Pneumocystis pneumonia, PCP) in immunocompromised hosts. PCP is a leading cause of morbidity and mortality in immunocompromised patients such as AIDS patients. Microscopic detection of cysts and trophic forms of P. jirovecii in respiratory secretions is simple and useful but may underestimate the P. jirovecii infection. Conventional polymerase chain reaction (PCR) and nested PCR increase the sensitivity and specificity to identify PCP and provide an approach to discriminate PCP from pulmonary P...
2016: Medical Mycology Journal
https://www.readbyqxmd.com/read/27890947/profile-of-pneumocystis-infection-in-a-tertiary-care-institute-in-north-india
#2
Ravinder Kaur, Pragyan Swagatika Panda, Richa Dewan
CONTEXT: Pneumocystis jirovecii pneumonia (PcP) is still remains a common opportunistic disease in human immunodeficiency virus (HIV) infected individuals. Study on PcP in developing countries are scarce. AIMS: To study the occurrence of P. jirovecii infection in clinically suspected individuals in a tertiary care institute. SETTINGS AND DESIGN: Retrospective study conducted in a tertiary care hospital. MATERIALS AND METHODS: Two years data regarding respiratory sample analysis, HIV status, and cluster of differentiation 4 (CD4) cell count of clinically suspected pneumocystis infection patients with known/unknown HIV status were analyzed...
July 2016: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27890037/grouped-cases-of-pulmonary-pneumocystosis-after-solid-organ-transplantation-advantages-of-coordination-by-an-infectious-diseases-unit-for-overall-management-and-epidemiological-monitoring
#3
Claire Wintenberger, Daniele Maubon, Elena Charpentier, John Rendu, Patricia Pavese, Caroline Augier, Paolo Malvezzi, Boubou Camara, Marie-Reine Mallaret, Laurence Bouillet, Olivier Epaulard
OBJECTIVE To determine the origin of grouped cases of Pneumocystis pneumonia in solid-organ transplant recipients at our institution. DESIGN A case series with clinical examinations, genotyping, and an epidemiological survey. SETTING A university hospital in France. PATIENTS We report 12 solid-organ transplant recipients with successive cases of Pneumocystis pneumonia that occurred over 3 years; 10 of these cases occurred in a single year. METHODS We used molecular typing of P. jirovecii strains by multilocus sequence typing and clinical epidemiological survey to determine potential dates and places of transmission...
November 28, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27859907/identification-and-functional-ascertainment-of-the-pneumocystis-jirovecii-potential-drug-targets-gsc1-and-kre6-involved-in-glucan-synthesis
#4
Amanda Luraschi, Ousmane H Cissé, Marco Pagni, Philippe M Hauser
The most efficient drug against the human pathogenic fungus Pneumocystis jirovecii is cotrimoxazole targeting the folate biosynthesis. However, resistance towards it is emerging and adverse effects occur in some patients. Studies in rodent models suggested that echinocandins could be useful to treat Pneumocystis pneumonia. Echinocandins inhibit the catalytic subunit Gsc1 of the enzymatic complex ensuring the synthesis of 1,3-β glucan, an essential constituent of cell walls of most fungi. Besides, inhibitors of the enzyme Kre6 involved in the synthesis of 1,6-β glucan, another essential component of fungal walls, were recently described...
November 17, 2016: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/27855071/high-prevalence-of-pneumocystis-jirovecii-dihydropteroate-synthase-gene-mutations-in-patients-with-first-episode-of-pneumocystis-pneumonia-in-santiago-chile-and-their-clinical-response-to-trimethoprim-sulfamethoxazole-therapy
#5
Carolina A Ponce, Magali Chabé, Claudio George, Alejandra Cárdenas, Luisa Duran, Julia Guerrero, Rebeca Bustamante, Olga Matos, Laurence Huang, Robert F Miller, Sergio L Vargas
Mutations in the Dihydropteroate synthase (DHPS) gene of Pneumocystis jirovecii associate with failure of sulfa prophylaxis. They can develop by selection in patients receiving sulfa drugs, or be acquired via person-to-person transmission. DHPS mutations raise concern about decreasing efficacy of sulfa drugs, the main available therapeutic tool for Pneumocystis pneumonia (PCP). The prevalence of Pneumocystis DHPS mutations was examined in Pneumocystis isolates from 56 sulfa-prophylaxis-naive adults with first-episode of PCP from 2002-2010 in Santiago, Chile...
November 14, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27851577/1943-crack-lung-mimicking-pneumocystis-pneumonia
#6
Junad Chowdhury, Milad Kosa, Vishad Sheth, Ana Maheshwari, Brett Lindgren, Michael Korman
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851413/1778-pneumocystis-pneumonia-remains-a-diagnostic-challenge-with-pcr-in-acute-settings
#7
Kelly Pennington, Patricio Escalante
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851378/1743-liver-transplantation-in-a-patient-with-pneumocystis-pneumonia-a-first-report-in-the-literature
#8
Christopher Robinson, Brendan Wanta
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27849736/56-utilization-and-outcomes-of-mechanical-ventilation-among-patients-with-pneumocystis-pneumonia
#9
Kshitij Chatterjee, Abhinav Goyal, Pooja Gurram, Kevin Kuriakose, Michael Saccente
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27837497/the-changing-epidemiology-of-invasive-fungal-infections
#10
David A Enoch, Huina Yang, Sani H Aliyu, Christianne Micallef
Invasive fungal infections (IFI) are an emerging problem worldwide with invasive candidiasis and candidemia responsible for the majority of cases. This is predominantly driven by the widespread adoption of aggressive immunosuppressive therapy among certain patient populations (e.g., chemotherapy, transplants) and the increasing use of invasive devices such as central venous catheters (CVCs). The use of new immune modifying drugs has also opened up an entirely new spectrum of patients at risk of IFIs. While the epidemiology of candida infections has changed in the last decade, with a gradual shift from C...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27836224/-infectious-events-during-the-course-of-autoimmune-diseases-treated-with-rituximab-a-retrospective-study-of-93%C3%A2-cases
#11
M Catroux, M Lauda-Maillen, M Pathe, A-C De Boisgrollier de Ruolz, F Cazenave-Roblot, P Roblot, O Souchaud-Debouverie
OBJECTIVE: Describe the occurring infections in patients treated with rituximab for an autoimmune disease. METHODS: Retrospective and monocentric study of 93 adult patients treated with rituximab for autoimmune indications over a nine years period. RESULTS: Thirty-eight patients suffered from a total of 95 infections. Out of them, 18 patients (19 %) had had at least an infectious episode triggering a hospital admission and/or intravenous treatment...
November 8, 2016: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/27835947/successful-treatment-of-severe-pneumocystis-pneumonia-in-an-immunosuppressed-patient-using-caspofungin-combined-with-clindamycin-a-case-report-and-literature-review
#12
Hongjuan Li, Haoming Huang, Hangyong He
BACKGROUND: Pneumocystis jirovecii is responsible for Pneumocystis pneumonia (PCP), which occurs almost exclusively in immunocompromised individuals. Trimethoprim-sulfamethoxazole (TMP-SMZ) is regarded as the first-line treatment and prophylaxis for P. jirovecii infection, but the frequency of adverse reactions and newly emerged antibiotic resistance limit its use. CASE PRESENTATION: Ulcerations and hemorrhages involving the tongue were noted secondary to TMP-SMZ desensitization against PCP in a 46-year-old male who had previously been diagnosed with IgA nephropathy and sustained prolonged corticosteroid therapy...
November 11, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27829072/autopsy-prevalence-of-tuberculosis-and-other-potentially-treatable-infections-among-adults-with-advanced-hiv-enrolled-in-out-patient-care-in-south-africa
#13
Aaron S Karat, Tanvier Omar, Anne von Gottberg, Mpho Tlali, Violet N Chihota, Gavin J Churchyard, Katherine L Fielding, Suzanne Johnson, Neil A Martinson, Kerrigan McCarthy, Nicole Wolter, Emily B Wong, Salome Charalambous, Alison D Grant
BACKGROUND: Early mortality among HIV-positive adults starting antiretroviral therapy (ART) remains high in resource-limited settings, with tuberculosis (TB) the leading cause of death. However, current methods to estimate TB-related deaths are inadequate and most autopsy studies do not adequately represent those attending primary health clinics (PHCs). This study aimed to determine the autopsy prevalence of TB and other infections in adults enrolled at South African PHCs in the context of a pragmatic trial of empiric TB treatment ("TB Fast Track")...
2016: PloS One
https://www.readbyqxmd.com/read/27824870/clinical-course-radiological-manifestations-and-outcome-of-pneumocystis-jirovecii-pneumonia-in-hiv-patients-and-renal-transplant-recipients
#14
Lukas Ebner, Laura N Walti, Andri Rauch, Hansjakob Furrer, Alexia Cusini, Andreas M J Meyer, Stefan Weiler, Uyen Huynh-Do, Johannes Heverhagen, Spyridon Arampatzis, Andreas Christe
BACKGROUND: Pneumocystis jirovecii pneumonia (PCP) is a frequent opportunistic infection in immunocompromised patients. In literature, presentation and outcome of PCP differs between patients with human immunodeficiency virus (HIV) infection and renal transplant recipients (RTRs). METHODS: We conducted a cross-sectional study of patients with PCP based on the HIV and renal transplant registries at our institution. Radiological and clinical data from all confirmed PCP cases between 2005 and 2012 were compared...
2016: PloS One
https://www.readbyqxmd.com/read/27824115/serological-diagnosis-of-pneumocystosis-production-of-a-synthetic-recombinant-antigen-for-immunodetection-of-pneumocystis-jirovecii
#15
A L Tomás, F Cardoso, F Esteves, O Matos
Diagnosis of Pneumocystis pneumonia (PcP) relies on the detection of P. jirovecii in respiratory specimens obtained by invasive techniques. Thus, the development of a serological test is urgently needed as it will allow the diagnosis of PcP using blood, an inexpensive and non-invasive specimen. This study aims to combine the production of a multi-epitope synthetic recombinant antigen (RSA) and an ELISA test for detection of anti-P. jirovecii antibodies, in order to develop a new approach for PcP diagnosis. The RSA was selected and designed based on the study of the immunogenicity of the carboxyl-terminal domain of the major surface glycoprotein...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27818226/-primary-care-of-the-blunt-splenic-injured-adult
#16
REVIEW
Brian Yorkgitis
The spleen is the most commonly injured abdominal organ in blunt trauma. Immediate treatment is aimed at assessing for bleeding and abating it when it is severe. Methods for the management of blunt splenic injury associated bleeding include observation, splenectomy and splenic salvage procedures through splenorrhaphy or embolization. After blunt splenic injury, complications commonly occur, including bleeding, infection, thrombosis and pneumonia. If a patient undergoes splenectomy, infections can be severe...
November 3, 2016: American Journal of Medicine
https://www.readbyqxmd.com/read/27812050/clinical-outcomes-of-pneumocystis-pneumonia-from-a-tertiary-care-centre-in-pakistan
#17
Ali Bin Sarwar Zubairi, Hira Shahzad, Afia Zafar
OBJECTIVE: To assess the predisposing immunocompromised states, administration of pneumocystis jirovecii pneumonia prophylaxis, the disease course and outcomes of patients with pneumocystis jirovecii pneumonia. METHODS: The retrospective study was conducted at the Aga Khan University Hospital in Karachi. The medical records of patients diagnosed with pneumocystis jirovecii pneumonia from January 1995 to October 2015 were retrieved. Baseline characteristics, clinical course, treatment, and mortality rates were noted...
November 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27803824/successful-treatment-of-disseminated-bacillus-calmette-gu%C3%A3-rin-disease-in-an-hiv-infected-child-with-a-linezolid-containing-regimen
#18
Srđan Roglić, Drusia Dickson, Branko Miše, Klaudija Višković, Vera Katalinić-Janković, George Rutherford, Josip Begovac
Upon HIV infection diagnosis, an 8-month-old boy was transferred for evaluation of worsening respiratory distress requiring mechanical ventilation. Pneumocystis jirovecii pneumonia (PCP) was diagnosed; the boy also had a nonhealing ulcer at the site of vaccination with Statens Serum Institut (Danish strain) Bacillus Calmette-Guérin (BCG) vaccine and associated axillary lymphadenopathy. PCP treatment resulted in weaning from mechanical ventilation. Antimycobacterial treatment was immediately attempted but was discontinued because of hepatotoxicity...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27789254/estimating-the-burden-of-invasive-and-serious-fungal-disease-in-the-united-kingdom
#19
Matthew Pegorie, David W Denning, William Welfare
BACKGROUND: The burden of fungal disease in the UK is unknown. Only limited data are systematically collected. We have estimated the annual burden of invasive and serious fungal disease. METHODS: We used several estimation approaches. We searched and assessed published estimates of incidence, prevalence or burden of specific conditions in various high risk groups. Studies with adequate internal and external validity allowed extrapolation to estimate current UK burden...
October 24, 2016: Journal of Infection
https://www.readbyqxmd.com/read/27789058/evaluation-of-a-new-commercial-real-time-pcr-assay-for-diagnosis-of-pneumocystis-jirovecii-pneumonia-and-identification-of-dihydropteroate-synthase-dhps-mutations
#20
Isabel Montesinos, Marie-Luce Delforge, Farida Ajjaham, Françoise Brancart, Maya Hites, Frederique Jacobs, Olivier Denis
The PneumoGenius® real-time PCR assay is a new commercial multiplex real-time PCR method, which detects the Pneumocystis mitochondrial ribosomal large subunit (mtLSU) and two dihydropteroate synthase (DHPS) point mutations. To evaluate the clinical performance of this new real-time PCR assay we tested 120 extracted DNA samples from bronchoalveolar lavage specimens. These set of extracted DNA samples had already tested positive for Pneumocystis and patients had been classified in probable and unlikely PCP in a previous study...
October 7, 2016: Diagnostic Microbiology and Infectious Disease
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