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pneumocystis pneumonia

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https://www.readbyqxmd.com/read/29138020/moyamoya-syndrome-in-a-pediatric-patient-with-congenital-human-immunodeficiency-virus-type-1-infection-resulting-in-intracranial-hemorrhage
#1
Junko Yamanaka, Ikuma Nozaki, Mizue Tanaka, Hideko Uryuu, Noriko Sato, Takeji Matsushita, Hiroyuki Shichino
In the era of Antiretroviral Therapy (ART) in which human immunodeficiency virus type 1 (HIV-1) infection affected children can expect a better prognosis, the importance of careful follow up of pediatric HIV-1 cases for neurological complications has been growing. We present a case of hemorrhagic Moyamoya syndrome in a child with congenital HIV-1 infection. A 10-year-old girl was referred to our hospital for the treatment of Pneumocystis Jirovecii Pneumonia (PCP: Pneumocystis pneumonia). Her HIV-1 control was poor and Moyamoya syndrome was found during the opportunistic infection screening at admission...
November 11, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29136537/new-advances-in-understanding-the-host-immune-response-to-pneumocystis
#2
REVIEW
J Claire Hoving, Jay K Kolls
Pneumocystis jirovecii causes clinical pneumonia in immunocompromised hosts. Despite this, the inability to cultivate this organism in vitro has likely hindered the field in ascertaining the true impact of Pneumocystis in human infection. However the recent release of the genome as well as in advances in understanding host genetics, and other risk factors for infection and robust experimental models of disease have shed new light on the impact of this fungal pathogen as to better define populations at risk...
November 11, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29135400/-the-comparison-of-microscopy-and-real-time-polymerase-chain-reaction-methods-for-the-diagnosis-of-pneumocystis-jirovecii-pneumonia-evaluation-of-clinical-parameters
#3
Seray Töz, Cumhur Gündüz, Aslı Tetik, Meltem Taşbakan, Hüsnü Pullukçu, Feza Bacakoğlu, Mehmet Sezai Taşbakan, Figen Gülen, Ayşegül Ünver, Nevin Turgay
Introduction: Pneumocystis jirovecii pneumonia (PCP) causes serious infections, especially in patients with immunosuppressive diseases. In this study, it was aimed to evaluate the results of samples obtained from PCP suspected patients using two different methods together with clinical data. Materials and Methods: Microscopy and real time polymerase chain reaction (real time PCR) methods were performed with bronchoalveolar lavage (BAL) samples sended to Ege University Medical Faculty Direct Parasitology Diagnostic Laboratory between March 2009 and June 2010...
September 2017: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/29132070/sixteen-year-history-of-rituximab-therapy-for-1085-pemphigus-vulgaris-patients-a-systematic-review
#4
REVIEW
Soheil Tavakolpour, HamidReza Mahmoudi, Kamran Balighi, Robabeh Abedini, Maryam Daneshpazhooh
Pemphigus vulgaris (PV) is a rare autoimmune disease due to the production of pathogenic autoantibodies directed against desmoglein 1 and 3, usually affecting both skin and mucous membranes. Recently, rituximab, a chimeric IgG1 monoclonal antibody which targets the CD20 molecules have been regarded as a promising treatment for PV. In this study, a systematic review was conducted to conclude on how and which PV patients could benefit from rituximab infusion. Search in PubMed results in 114 relevant studies, which met the criteria...
November 10, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29114024/mechanisms-of-surface-antigenic-variation-in-the-human-pathogenic-fungus-pneumocystis-jirovecii
#5
Emanuel Schmid-Siegert, Sophie Richard, Amanda Luraschi, Konrad Mühlethaler, Marco Pagni, Philippe M Hauser
Microbial pathogens commonly escape the human immune system by varying surface proteins. We investigated the mechanisms used for that purpose by Pneumocystis jirovecii This uncultivable fungus is an obligate pulmonary pathogen that in immunocompromised individuals causes pneumonia, a major life-threatening infection. Long-read PacBio sequencing was used to assemble a core of subtelomeres of a single P. jirovecii strain from a bronchoalveolar lavage fluid specimen from a single patient. A total of 113 genes encoding surface proteins were identified, including 28 pseudogenes...
November 7, 2017: MBio
https://www.readbyqxmd.com/read/29111605/influenza-and-pneumocystis-jirovecii-pneumonia-in-an-allogeneic-hematopoietic-stem-cell-transplantation-recipient-co-infection-or-superinfection
#6
Jacob Burke, Ayman O Soubani
Influenza infection and Pneumocystis jirovecii pneumonia (PJP) in hematopoietic stem cell transplant (HSCT) patients are well characterized, however no dual infections have been reported in this patient population and little evidence of mechanisms of interaction between the two infections exists. We present a 53-year-old male allogeneic HSCT patient on immunosuppressive therapy for the treatment of graft-versus-host disease initially diagnosed with influenza A H3, and later PJP. Despite the development of acute respiratory distress syndrome, the patient was successfully treated with appropriate antimicrobial therapy and aggressive supportive care...
November 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29093385/a-case-of-pneumocystis-pneumonia-secondary-to-idiopathic-cd4-t-lymphocytopenia-a-comparison-of-aids-and-non-aids-patients
#7
Kazuki Sone, Hideki Muramatsu, Makoto Nakao, Yusuke Kagawa, Ryota Kurokawa, Hidefumi Sato, Akio Niimi
A 67-year-old man was admitted to our hospital complaining of dry cough. Chest computed tomography showed diffuse infiltrates and ground-glass opacities in the bilateral lung fields. Transbronchial lung biopsy specimens showed alveoli filled with yeast-like fungi. With a diagnosis of pneumocystis pneumonia (PCP), he was given oral sulfamethoxazole/trimethoprim, to which he responded well. However, seven months later, PCP relapsed. Analyses revealed a low bronchoalveolar lavage fluid CD4/CD8 ratio of 0.04 and CD4+ lymphocytopenia (250/μL)...
November 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29092853/prophylactic-effect-of-trimethoprim-sulfamethoxazole-for-pneumocystis-pneumonia-in-patients-with-rheumatic-diseases-exposed-to-prolonged-high-dose-glucocorticoids
#8
Jun Won Park, Jeffrey R Curtis, Jinyoung Moon, Yeong Wook Song, Suhnggwon Kim, Eun Bong Lee
OBJECTIVES: To investigate the efficacy and safety of trimethoprim/sulfamethoxazole (TMP-SMX) as primary prophylaxis for pneumocystis pneumonia (PCP) in patients with rheumatic diseases receiving high-dose steroids. METHODS: The study included 1522 treatment episodes with prolonged (≥4 weeks) high-dose (≥30 mg/day prednisone) steroids in 1092 patients over a 12-year period. Of these, 262 treatment episodes involved TMP-SMX (prophylaxis group) while other episodes involved no prophylaxis (control group)...
November 1, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29079915/-pneumocystis-jirovecii-pneumonia-in-patients-with-autoimmune-diseases
#9
REVIEW
S Blaas
Pneumocystis jirovecii pneumonia plays an increasing role in patients with autoimmune disorders, due to more intensive immunosuppressive therapy. Humans seem to be the most important pathogen reservoir. Diseases are probably caused by airborne new infections. Cough, subfebrile temperature and dyspnea on exertion are the leading symptoms. In addition to imaging, in particular high-resolution computed tomography, pathogen detection by staining methods or molecular genetic methods plays the decisive role. Trimethoprim and sulfamethoxazole (TMP-SMX) is the most important medication for treatment...
November 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29069759/diagnosis-of-pneumocystis-jirovecii-pneumonia-with-serum-cell-free-dna-in-non-hiv-infected-immunocompromised-patients
#10
Dong Wang, Yang Hu, Ting Li, Heng-Mo Rong, Zhao-Hui Tong
Conventional respiratory tract specimens, such as bronchoalveolar lavage (BAL) fluid and induced sputum for diagnosing Pneumocystis jirovecii pneumonia (PCP) in immunocompromised patients are difficult to obtain. Besides, bronchoscopy is an invasive procedure that carries the risk of causing rapidly progressive respiratory insufficiency. By contrast, serum cell-free DNA (cfDNA) is easy to obtain and has been proven useful in diagnosing cancer, pregnancy associated complications, parasite infection and sepsis...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29066657/case-of-undiagnosed-pneumocystis-pneumonia-pcp
#11
Verda Arshad, Nousheen Iqbal, Haider Ali Saleem, Muhammad Irfan
Pneumocystis pneumonia (PCP) is an opportunistic fungal infection that is usually seen in immunocompromised patients, especially those with HIV, malignancies, organ transplants and on drug therapies like chemotherapy and steroids. PCP has subacute presentation in patients with AIDS which if left untreated gets worse and is a significant cause of morbidity and mortality. Here we present a case of PCP went undiagnosed, partially due to the patient being unaware of his HIV positive status and partially because no organism could be found under the microscope...
October 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29065393/electronic-structure-vibrational-assignments-and-simulation-studies-with-a-t-rich-dna-duplex-of-an-aromatic-bis-amidine-derivative
#12
Umesh Yadava, Sanjai Kumar Yadav, Ramesh Kumar Yadav
In this paper, computational investigations have been carried out on an aromatic bis-amidine which is considered to be crucial due to its peculiar properties including anti-Pneumocystis carinii pneumonia(PCP), anti-inflammatory and anticancer activities. The raw structure of an aromatic bis-amidine namely; 2,5-bis[4-(N-cyclohexyl-amidino)phenyl]furan was retrieved, optimized and geometrical parameters were computed. The computational results have been compared with those of reported experimental values. In order to check its binding capability, we pave the way a step further by the interaction of the molecule with DNA duplex, 5'(CGCGAATTCGCG)3', which consisted of A/T base pairs in its central region...
October 16, 2017: DNA Repair
https://www.readbyqxmd.com/read/29054940/rare-presentation-of-an-old-bug
#13
Hasan Ahmad Hasan Albitar, Alice Gallo de Moraes, Kaiser G Lim
We highlight a rare presentation of Legionella infection in a 77-year-old woman with a clinical diagnosis of giant cell arteritis 2 months prior to presentation. She was started on 60 mg prednisone that was tapered to 10 mg after 4 weeks following her diagnosis. She presented with a 1-month progressive dyspnoea in the absence of any other symptoms. Her exposure history was significant only for a recent trip to Florida where she stayed at a hotel. Initial laboratory workup was significant for hyponatraemia (127 mmol/L)...
October 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29039305/changing-epidemiology-of-pneumocystis-pneumonia-northern-ireland-uk-and-implications-for-prevention-1-july-2011-31-july-2012
#14
Lynsey Patterson, Peter Coyle, Tanya Curran, Neville Q Verlander, Jillian Johnston
PURPOSE: There is a lack of consensus about which non-human immunodeficiency virus (HIV) patient groups would benefit from prophylaxis. Here, we analysed an enhanced Pneumocystis jirovecii database to describe the epidemiology of Pneumocystis pneumonia (PCP) and P. jirovecii colonizations in Northern Ireland (NI) with a view to identifying risk groups who may benefit from prophylaxis. METHODOLOGY: We prospectively collected information on demographics, clinical severity and clinical features for all hospital inpatients in NI aged ≥18 years with P...
October 17, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29033413/multiple-lung-cysts-due-to-pneumocystis-jirovecii-pneumonia
#15
Kazuaki Fukushima, Keishiro Yajima
No abstract text is available yet for this article.
October 16, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29030378/worsening-guillain-barr%C3%A3-syndrome-harbinger-of-iris-in-hiv
#16
Neeharika L Mathukumalli, Niloufer Ali, Meena A Kanikannan, Sireesha Yareeda
We report an HIV patient aged 38 years with acute inflammatory demyelinating polyradiculoneuropathy subtype of Guillain-Barré syndrome (GBS) as the only manifestation of seroconversion and worsening of GBS being the harbinger of immune reconstitution inflammatory syndrome (IRIS). To date, only 5 cases of GBS during IRIS are reported. They manifested either during the third week or later after starting highly active antiretroviral therapy (HAART). Our patient witnessed worsening weakness by fifth day after starting HAART, even before the occurrence of Pneumocystis jirovecii pneumonia, cautioning one of the impending serious complications of IRIS and helped us initiate steroids at an early date...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28992910/extreme-tetralogy-of-fallot-with-polycythemia-in-a-ferret-mustela-putorius-furo
#17
Sara Dias, Marta Planellas, Albert Canturri, Jaume Martorell
A 5-month-old, intact male ferret (Mustela putorius furo) was presented with apathy, tachypnea and exercise intolerance. On initial physical examination, tachypnea and cyanosis were the two primary clinical signs detected. The complete blood count also revealed a severe polycythemia, with lymphopenia, neutrophilia and eosinophilia. Further diagnostic imaging tests were performed. The thoracic radiographs revealed cardiomegaly and a diffuse alveolar pulmonary pattern. Consequently, an echocardiography was performed and showed an interventricular septal defect, pulmonic artery occlusion, overriding of the aorta and right ventricle hypertrophy...
June 2017: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28992298/incidence-of-pneumocystis-jirovecii-and-adverse-events-associated-with-pneumocystis-prophylaxis-in-children-receiving-glucocorticoids
#18
Matthew L Basiaga, Michelle E Ross, Jeffrey S Gerber, Alexis Ogdie
Background: Antimicrobial prophylaxis is indicated to prevent Pneumocystis jirovecii pneumonia (PJP) in profoundly immunosuppressed children. The incidence of PJP infection in children with chronic glucocorticoid exposure is unknown, and PJP prophylaxis has been associated with adverse events. We hypothesized that PJP infection is rare in children without human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS), cancer, or a transplant history who are using chronic glucocorticoids and that those exposed to PJP prophylaxis are more likely to experience a cutaneous hypersensitivity reaction or myelosuppression than unexposed patients...
July 13, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28986117/screening-prophylaxis-and-counselling-before-the-start-of-biological-therapies-a-practical-approach-focused-on-ibd-patients
#19
REVIEW
Cândida Abreu, António Sarmento, Fernando Magro
The standard of care in the management of immune-mediated inflammatory conditions relies on immunomodulators, glucocorticoids, and biologicals (including anti-tumour necrosis factor -α and other monoclonal antibodies). These agents have an overall favourable benefit/risk ratio; however, they modulate the immune response as part of their mechanisms of action, and therefore they may increase the risk of developing infections, particularly in older patients or in patients with concomitant corticosteroids. Some of these infections may be preventable by immunization, chemoprophylaxis or counselling...
September 12, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28979537/tension-pneumomediastinum-a-literal-form-of-chest-tightness
#20
David J Clancy, Andrew S Lane, Peter W Flynn, Ian M Seppelt
Tension pneumomediastinum is a rare and life-threatening complication of mediastinal emphysema which can occur with mechanical ventilation. We present a case of tension mediastinum associated with mechanical ventilation in a patient with Acute Respiratory Distress Syndrome due to Pneumocystis jirovecii pneumonia. We discuss the mechanism and pathophysiology of tension pneumomediastinum, the potential association with Pneumocystis jirovecii pneumonia and recruitment manouvres, and its definitive emergency treatment...
February 2017: J Intensive Care Soc
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