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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/29225815/hypercalcaemia-preceding-diagnosis-of-pneumocystis-jirovecii-pneumonia-in-renal-transplant-recipients
#2
Jonathan Ling, Tara Anderson, Sanchia Warren, Geoffrey Kirkland, Matthew Jose, Richard Yu, Steven Yew, Samantha Mcfadyen, Alison Graver, William Johnson, Lisa Jeffs
Background: The overall incidence of Pneumocystis jirovecii pneumonia (PJP) in solid organ transplant recipients is 5-15%. A timely diagnosis of PJP is difficult and relies on imaging and detection of the organism. Methods: We present a case series of four patients displaying hypercalcaemia with an eventual diagnosis of PJP and document the management of the outbreak with a multidisciplinary team approach. We discuss the underlying pathophysiology and previous reports of hypercalcaemia preceding a diagnosis of PJP...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29224242/dermoscopic-observations-in-disseminated-cryptococcosis-with-cutaneous-involvement
#3
M Sławińska, M Hlebowicz, E Iżycka-Świeszewska, M Sikorska, M Sokołowska-Wojdyło, T Smiatacz, R Nowicki, M Sobjanek
A 26-year-old female patient with a history of intravenous drug abuse, diagnosed with acquired immunodeficiency syndrome (AIDS) 6 months before. AIDS defining disease was Pneumocystis jiroveci pneumonia. The patient presented with severely decreased CD4 cell count of 7 cells/mm3 and relatively low HIV viral load of 281 copies/mL. Shortly after initiation of antiretroviral therapy (ART), was diagnosed with disseminated cryptococcosis with central nervous system and skin involvement. This article is protected by copyright...
December 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29221274/predictors-of-high-flow-nasal-cannula-failure-in-immunocompromised-patients-with-acute-respiratory-failure-due-to-non-hiv-pneumocystis-pneumonia
#4
Won-Young Kim, Heungsup Sung, Sang-Bum Hong, Chae-Man Lim, Younsuck Koh, Jin Won Huh
Background: To evaluate the predictors of high flow nasal cannula (HFNC) failure in pneumocystis pneumonia (PCP) patients with acute respiratory failure (ARF). Methods: Fifty-two non-HIV-related PCP subjects were divided into a HFNC success group (44%) and a HFNC failure group (who required mechanical ventilation (MV) despite HFNC application) (56%). The clinical characteristics and physiologic effects were retrospectively reviewed and compared between the groups...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29212106/-an-uncommon-case-of-pneumonia
#5
J A von Donat, M Weber
Pneumocystis jirovecii pneumonia is a common cause of respiratory disease in immunocompromised hosts. We describe a case of an HIV negative, immunocompetent patient and discuss the probable cause.
December 6, 2017: Pneumologie
https://www.readbyqxmd.com/read/29211898/bilateral-upper-lobe-pneumocystis-pneumonia-during-aerosolized-pentamidine-prophylaxis
#6
Yoshiyuki Ohara, Takanori Asakura, Soichiro Ueda, Yoshitake Yamada, Makoto Ishii, Tomoko Betsuyaku
No abstract text is available yet for this article.
December 1, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29202739/the-lung-microbiome-in-patients-with-pneumocystosis
#7
J Kehrmann, B Veckollari, D Schmidt, O Schildgen, V Schildgen, N Wagner, M Zeschnigk, L Klein-Hitpass, O Witzke, J Buer, J Steinmann
BACKROUND: Pneumocystis jirovecii pneumonia (PCP) is an opportunistic fungal infection that is associated with a high morbidity and mortality in immunocompromised individuals. In this study, we analysed the microbiome of the lower respiratory tract from critically ill intensive care unit patients with and without pneumocystosis. METHODS: Broncho-alveolar fluids from 65 intubated and mechanically ventilated intensive care unit patients (34 PCP+ and 31 PCP- patients) were collected...
December 4, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29201630/avoidance-of-harm-from-treatment-for-anca-associated-vasculitis
#8
REVIEW
Catherine King, Lorraine Harper
Purpose of review With established immunosuppressant treatment regimens for anti-neutrophil cytoplasm antibody-associated vasculitides (AAV), prognosis has significantly improved. The mainstay of treatment still comprises high-dose corticosteroids and cyclophosphamide for severe forms, although rituximab is being increasingly utilised instead of cyclophosphamide as induction therapy. AAV patients experience an excess of infections, malignancies and cardiovascular events as compared to the general population, which is a combination of the systemic inflammatory process associated with vasculitis and the adverse events from treatment...
2017: Current Treatment Options in Rheumatology
https://www.readbyqxmd.com/read/29201472/severe-cytomegalovirus-reactivation-in-patient-with-low-grade-non-hodgkin-s-lymphoma-after-standard-chemotherapy
#9
Lena Modvig, Ciaran Boyle, Katie Randall, Anton Borg
Clinically significant cytomegalovirus (CMV) reactivation is not uncommon in patients with severe immunodeficiency secondary to underlying medical disorders or following aggressive immunosuppressive therapy. However, it is less frequently found in patients with low-grade haematological malignancies after nonintensive chemotherapy. We treated a patient at our centre for stage IVB follicular lymphoma with standard chemotherapy who successively developed CMV colitis associated with a CMV viral load of >3 million copies/ml...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/29191821/follicular-bronchiolitis-in-an-hiv-infected-individual-on-combination-antiretroviral-therapy-with-low-cd4-cell-count-but-sustained-viral-suppression
#10
Line D Rasmussen, Court Pedersen, Helle D Madsen, Christian B Laursen
A 36-year-old Danish man, living in Asia, was diagnosed with Pneumocystis pneumonia (PCP) and HIV in 2013 (CD4+ count: 6 cells/µL; viral load: 518 000 copies/mL). He initiated combination antiretroviral therapy. Later that year, he was also diagnosed with granulomatosis with polyangiitis and was treated with prednisolone. Despite complete viral suppression and increasing CD4+ count (162 cells/µL), he was readmitted with PCP in April 2015. Subsequently, he returned to Denmark (CD4+ count: 80 cells/µL, viral suppression)...
November 29, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29190812/diagnostic-performance-of-the-1-3-%C3%AE-d-glucan-assay-in-patients-with-pneumocystis-jirovecii-compared-with-those-with-candidiasis-aspergillosis-mucormycosis-and-tuberculosis-and-healthy-volunteers
#11
Hyo-Ju Son, Heungsup Sung, Se Yoon Park, Taeeun Kim, Hyun Jeong Lee, Sun-Mi Kim, Yong Pil Chong, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Sung-Han Kim
BACKGROUND: Diagnosis of pneumocystis pneumonia (PCP) relies on microscopic visualization of P. jirovecii, or detection of Pneumocystis DNA in respiratory specimens, which involves invasive procedures such as bronchoalveolar lavage. The (1-3)-β-D-glucan (BG) assay has been proposed as a less invasive and less expensive diagnostic test to rule out PCP. We therefore compared blood levels of BG in patients with PCP with those of patients with candidemia, chronic disseminated candidiasis (CDC), invasive aspergillosis, mucormycosis, and tuberculosis and those of healthy volunteers...
2017: PloS One
https://www.readbyqxmd.com/read/29187293/immune-reconstitution-inflammatory-syndrome-in-hiv-infected-patients-with-pneumocystis-jirovecii-pneumonia
#12
Luisa Roade Tato, Joaquín Burgos Cibrian, Adrià Curran Fábregas, Jordi Navarro Mercadé, Rein Willekens, María Teresa Martín Gómez, Esteban Ribera Pascuet, Vicenç Falcó Ferrer
INTRODUCTION: The incidence of immune reconstitution inflammatory syndrome (IRIS) in HIV-infected patients after an episode of Pneumocystis jirovecii pneumonia (PJP) seems to be lower than with other opportunistic infections. We conducted an observational study in order to determine the incidence, clinical characteristics and outcome of patients diagnosed with PJP-related IRIS. METHODS: We conducted an observational study of HIV patients diagnosed with PJP-related IRIS from January 2000 to November 2015...
November 26, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29186259/pneumocystis-jirovecii-pneumonia-induced-by-low-dose-methotrexate-in-a-patient-with-chronic-urticaria
#13
Sheng-Huei Wang, Shih-En Tang, Yu-Huei Li, Kuang-Yu Wei, Chan-Yuan Chang
Methotrexate has immunosuppressive effects and is administered for refractory chronic urticaria. We present a case of Pneumocystis jirovecii pneumonia in a patient with refractory chronic urticaria managed by low-dose weekly methotrexate treatment (total cumulative dose 195mg). Our study highlights the importance of providing prompt diagnosis and treatment of Pneumocystis jirovecii pneumonia in patients with chronic urticaria under methotrexate therapy.
May 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29185961/recommendations-for-the-management-of-pulmonary-fungal-infections-in-patients-with-rheumatoid-arthritis
#14
REVIEW
Massimo Galli, Spinello Antinori, Fabiola Atzeni, Luca Meroni, Agostino Riva, Carlo Scirè, Fulvio Adorni, Luca Quartuccio, Marco Sebastiani, Paolo Airò, Laura Bazzichi, Francesco Cristini, Valerio Del Bono, Andreina Manfredi, Ombretta Viapiana, Francesco De Rosa, Ennio Favalli, Enzo Petrelli, Carlo Salvarani, Marcello Govoni, Silvia Corcione, Rossana Scrivo, Loredana Sarmati, Adriano Lazzarin, Walter Grassi, Claudio Mastroianni, Giovanni Battista Gaeta, Gianfranco Ferraccioli, Maurizio Cutolo, Salvatore De Vita, Giovanni Lapadula, Marco Matucci-Cerinic, Orlando Armignacco, Piercarlo Sarzi-Puttini
Often life-threatening pulmonary fungal infections (PFIs) can occur in patients with rheumatoid arthritis (RA) receiving disease-modifying anti-rheumatic drugs (DMARDs). Most of the data concerning PFIs in RA patients come from case reports and retrospective case series. Of the ve most widely described PFIs, Pneumocystis jirovecii pneumonia (PJP) has rarely been seen outside Japan, pulmonary cryptococcosis has been diagnosed in only a small number of patients worldwide, pulmonary coccidioidomycosis has almost only been observed in endemic areas, the limited number of cases of pulmonary histoplasmosis have mainly occurred in the USA, and the rare cases of invasive pulmonary aspergillosis have only been encountered in leukopenic patients...
November 28, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29181029/incidence-and-risk-factors-for-infections-requiring-hospitalization-including-pneumocystis-pneumonia-in-japanese-patients-with-rheumatoid-arthritis
#15
Atsushi Hashimoto, Shiori Suto, Kouichiro Horie, Hidefumi Fukuda, Shinichi Nogi, Kanako Iwata, Hirotaka Tsuno, Hideki Ogihara, Misato Kawakami, Akiko Komiya, Hiroshi Furukawa, Toshihiro Matsui, Shigeto Tohma
Objective: Rheumatoid arthritis (RA) may be complicated by different infections, but risk factors for these are not fully elucidated. Here, we assessed the incidence of and risk factors for infections requiring hospitalization (IRH) including pneumocystis pneumonia (PCP) in patients with RA. Methods: We retrospectively surveyed all RA patients treated at our hospital from 2009 to 2013, for whom data were available on demographic features, medications, comorbidities, and severity of RA...
2017: International Journal of Rheumatology
https://www.readbyqxmd.com/read/29170665/canonical-stimulation-of-the-nlrp3-inflammasome-by-fungal-antigens-links-innate-and-adaptive-b-lymphocyte-responses-by-modulating-il-1%C3%AE-and-igm-production
#16
Mohamed F Ali, Harika Dasari, Virginia P Van Keulen, Eva M Carmona
The NLRP3 inflammasome is activated in response to different bacterial, viral, and fungal pathogens and serves as modulator of different pattern recognition receptors signaling pathways. One of the main functions of NLRP3 is to participate in IL-1β maturation which is important in the host defense against Pneumocystis and other fungal infections. However, dysregulation of NLRP3 and IL-1β secretion are also implicated in the pathophysiology of many auto-inflammatory disorders. Often time's inflammatory flares are preceded by infectious illnesses questioning the role of infection in autoimmune exacerbations...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29169991/progression-of-th2-cell-type-inflammation-and-airway-remodeling-in-a-rodent-model-of-naturally-acquired-subclinical-primary-pneumocystis-infection
#17
Pablo A Iturra, Diego A Rojas, Francisco J Pérez, Andrea Méndez, Carolina A Ponce, Paula Bonilla, Rebeca Bustamante, Héctor Rodríguez, Caroll J Beltrán, Sergio L Vargas
Subclinical primary Pneumocystis infection is the most common pulmonary infection in early infancy, making it important to determine whether it damages the lung. Pneumocystis peaks at two to five months of age, when respiratory morbidity coincidently increases. We have documented that Pneumocystis increases mucus production in infant lungs, and animal models reveal lung lesions that warrant characterization. Here, immunocompetent rats infected at birth with Pneumocystis by co-habitation, to resemble community-acquired infection, underwent lung assessments at 45, 60, and 75 days of age...
November 20, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29150886/ruxolitinib-associated-infections-a-systematic-review-and-meta-analysis
#18
Federico Lussana, Marco Cattaneo, Alessandro Rambaldi, Alessandro Squizzato
Ruxolitinib exerts immunosuppressive activity that may increase the risk of infectious complications. We performed a systematic review of the literature with the aim of estimating the risk of infections in patients treated with ruxolitinib. Studies were identified by electronic search of MEDLINE and EMBASE database. Differences in the incidence of infectious events between ruxolitinib and comparison groups were expressed as odds ratios (ORs) and 95% confidence intervals (95% CI). Five phase III randomized clinical trials (RCTs) (3 phase IIIa with their extended phase and 2 phase IIIb), 6 phase IV studies and 28 case reports were included in this systematic review...
November 18, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29145787/pneumocystosis-in-dogs-meta-analysis-of-43-published-cases-including-clinical-signs-diagnostic-procedures-and-treatment
#19
Christiane Weissenbacher-Lang, Andrea Fuchs-Baumgartinger, Abigail Guija-De-Arespacochaga, Andrea Klang, Herbert Weissenböck, Frank Künzel
We evaluated 43 published cases of dogs with confirmed Pneumocystis infection regarding the value of clinical parameters indicating the presence of the disease as well as tools for the detection of the pathogen. The assessed parameters included clinical signs, laboratory findings, results of thoracic radiography, autopsy, histopathology, methods for the detection of Pneumocystis, as well as medical therapy. Pneumocystosis was diagnosed most often in certain breeds (Cavalier King Charles Spaniel, Miniature Dachshund) with a predisposition for impaired immunity...
November 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29142521/fatal-infections-in-older-patients-with-inflammatory-bowel-disease-on-anti-tumor-necrosis-factor-therapy
#20
Way-Seah Lee, Najib Azmi, Ruey-Terng Ng, Sik-Yong Ong, Sasheela Sri La Ponnampalavanar, Sanjiv Mahadeva, Ida Hilmi
Anti-tumor necrosis factor (anti-TNF) is highly effective in inflammatory bowel disease (IBD); however, it is associated with an increased risk of infections, particularly in older adults. We reviewed 349 patients with IBD, who were observed over a 12-month period, 74 of whom had received anti-TNF therapy (71 patients were aged <60 years and 3 were aged ≥60 years). All the 3 older patients developed serious infectious complications after receiving anti-TNFs, although all of them were also on concomitant immunosuppressive therapy...
October 2017: Intestinal Research
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