1
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Sauvat L, Denis L, Nourrisson C, Poirier P, Ruivard M, Le Guenno G. Pneumocystis jirovecii pneumonia in non-HIV patients: need for a more extended prophylaxis. Front Med (Lausanne) 2024; 11:1414092. [PMID: 38988362 PMCID: PMC11233525 DOI: 10.3389/fmed.2024.1414092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/14/2024] [Indexed: 07/12/2024] Open
Abstract
Background Pneumocystis jirovecii pneumonia (PCP) has a significant mortality rate for non-HIV immunocompromised patients. Prevention is primarily based on combined trimethoprim and sulfamethoxazole (TMP-SMX) but guidelines on pneumocystosis prophylaxis are scattered and not consensual. Objectives This study aims to describe PCP in non-HIV patients and to review case by case the prior indication of prophylaxis according to specific guidelines.We included patients with confirmed diagnosis of PCP admitted to one university hospital from 2007 to 2020. Prior indication for pneumocystis prophylaxis was assessed according to the specific guidelines for the underlying pathology or treatment. Results Of 150 patients with a medical diagnosis of PCP, 78 were included. Four groups of underlying pathologies were identified: hematological pathologies (42%), autoimmune diseases (27%), organ transplantation (17%), and other pathologies at risk of PCP (14%). A small subgroup of 14 patients (18%) had received a prior prescription of pneumocystis prophylaxis but none at the time of the episode. Transfer to intensive care was necessary for 33 (42%) patients, and the mortality rate at 3 months was 20%. According to international disease society guidelines, 52 patients (59%) should have been on prophylaxis at the time of the pneumocystis episode. Lowest compliance with guidelines was observed in the hematological disease group for 24 patients (72%) without prescription of indicated prophylaxis. Conclusion Infectious disease specialists should draw up specific prophylactic guidelines against pneumocystis to promote a better prevention of the disease and include additional criteria in their recommendations according to individual characteristics to prevent fatal cases.
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Affiliation(s)
- Léo Sauvat
- Infection Control Department, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Laure Denis
- Department of Internal Medicine, CH Alpes - Lemans, Contamine sur Arve, France
| | - Céline Nourrisson
- Laboratory of Mycology and Parasitology, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, 3IHP, Clermont-Ferrand, France
| | - Philippe Poirier
- Laboratory of Mycology and Parasitology, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, 3IHP, Clermont-Ferrand, France
| | - Marc Ruivard
- Department of Internal Medicine, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Clermont-Ferrand, France
| | - Guillaume Le Guenno
- Department of Internal Medicine, Centre Hospitalier Universitaire (CHU) Clermont-Ferrand, Clermont-Ferrand, France
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2
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Cheng B, Qi C, Zhang S, Wang X. Risk factors for Pneumocystis jirovecii pneumonia after kidney transplantation: A systematic review and meta-analysis. Clin Transplant 2024; 38:e15320. [PMID: 38690617 DOI: 10.1111/ctr.15320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND AND OBJECTIVE Pneumocystis jirovecii pneumonia (PJP), an opportunistic infection, often leads to an increase in hospitalization time and mortality rates in kidney transplant (KT) recipients. However, the risk factors associated with PJP in KT recipients remain debatable. Therefore, we conducted this meta-analysis to identify risk factors for PJP, which could potentially help to reduce PJP incidence and improve outcome of KT recipients. METHODS We systematically retrieved relevant studies in PubMed, EMBASE, and the Cochrane Library up to November 2023. Pooled odds ratios (ORs) or mean differences (MDs) and the corresponding 95% confidence intervals (CIs) were calculated to assess the impact of potential risk factors on the occurrence of PJP. RESULTS 27 studies including 42383 KT recipients were included. In this meta-analysis, age at transplantation (MD = 3.48; 95% CI = .56-6.41; p = .02), cytomegalovirus (CMV) infection (OR = 4.00; 95% CI = 2.53-6.32; p = .001), BK viremia (OR = 3.38; 95% CI = 1.70-6.71; p = .001), acute rejection (OR = 3.66; 95% CI = 2.44-5.49; p = .001), ABO-incompatibility (OR = 2.51; 95% CI = 1.57-4.01; p = .001), estimated glomerular filtration rate (eGFR) (MD = -14.52; 95% CI = -25.37- (-3.67); p = .009), lymphocyte count (MD = -.54; 95% CI = -.92- (-.16); p = .006) and anti-PJP prophylaxis (OR = .53; 95% CI = .28-.98; p = .04) were significantly associated with PJP occurrence. CONCLUSION Our findings suggest that transplantation age greater than 50 years old, CMV infection, BK viremia, acute rejection, ABO-incompatibility, decreased eGFR and lymphopenia were risk factors for PJP.
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Affiliation(s)
- Bingjie Cheng
- Department of Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chang Qi
- Department of Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Senlin Zhang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xiaowen Wang
- Department of Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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3
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Cremen S, Santiago RM, Robinson MW, Gallagher TK. Biomarkers of biological aging in recipients of solid organ transplantation and clinical outcomes: A scoping review. Transpl Immunol 2023; 79:101851. [PMID: 37182719 DOI: 10.1016/j.trim.2023.101851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Biological aging is the accumulation of cellular and molecular damage within an individual over time. The biological age of a donor organ is known to influence clinical outcomes of solid organ transplantation, including delayed graft function and frequency of rejection episodes. While much research has focused on the biological age of donor organs, the recipient's biological age may also influence transplantation outcomes. The aim of this scoping review was to identify and provide an overview of the existing evidence regarding biological aging in solid organ transplant recipients and the impact on patient outcomes post-transplant. METHODS Literature searches were carried out on PubMed, Web of Science, Google Scholar, Embase and TRIP using the phrases 'solid organ transplant', 'cell senescence', 'cell aging' and 'outcomes', using boolean 'and/or' phrases and MeSH terms. Duplicates were removed and abstracts were reviewed by two independent reviewers. Full papers were then screened for inclusion by two reviewers. Data extraction was carried out using a standardised proforma agreed on prior to starting. RESULTS 32 studies, including data on a total of 7760 patients, were identified for inclusion in this review; 23 relating to kidney transplant recipients, three to liver transplant, five to lung transplant and one to heart transplantation. A wide range of biomarkers of biological aging have been assessed in kidney transplant recipients, whereas studies of liver, lung and heart transplant have predominantly assessed recipient telomere length. The most robust associations with clinical outcomes are observed in kidney transplant recipients, possibly influenced by the larger number of studies and the use of a wider range of biomarkers of biological aging. In kidney transplant recipients reduced thymic function and accumulation of terminally differentiated T cell populations was associated with reduced risk of acute rejection but increased risk of infection and mortality. CONCLUSION Studies to date on biological aging in transplant recipients have been heavily biased to kidney transplant recipients. The results from these studies suggest recipient biological age can influence clinical outcomes and future research is needed to prioritise robust biomarkers of biological aging in transplant recipients.
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Affiliation(s)
- S Cremen
- Department of Hepatobiliary and Transplant Surgery, St Vincent's University Hospital, Dublin, Ireland; School of Medicine, University College Dublin, Dublin, Ireland
| | - R M Santiago
- Department of Biology, Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Kildare, Ireland
| | - M W Robinson
- Department of Biology, Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Kildare, Ireland.
| | - T K Gallagher
- Department of Hepatobiliary and Transplant Surgery, St Vincent's University Hospital, Dublin, Ireland; School of Medicine, University College Dublin, Dublin, Ireland
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4
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Apostolopoulou A, Fishman JA. The Pathogenesis and Diagnosis of Pneumocystis jiroveci Pneumonia. J Fungi (Basel) 2022; 8:1167. [PMID: 36354934 PMCID: PMC9696632 DOI: 10.3390/jof8111167] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 07/29/2023] Open
Abstract
Pneumocystis jiroveci remains an important fungal pathogen in immunocompromised hosts. The environmental reservoir remains unknown. Pneumonia (PJP) results from airborne transmission, including in nosocomial clusters, or with reactivation after an inadequately treated infection. Pneumocystis pneumonia most often occurs within 6 months of organ transplantation, with intensified or prolonged immunosuppression, notably with corticosteroids and following cytomegalovirus (CMV) infections. Infection may be recognized during recovery from neutropenia and lymphopenia. Invasive procedures may be required for early diagnosis and therapy. Despite being a well-established entity, aspects of the pathogenesis of PJP remain poorly understood. The goal of this review is to summarize the data on the pathogenesis of PJP, review the strengths and weaknesses of the pertinent diagnostic modalities, and discuss areas for future research.
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Affiliation(s)
- Anna Apostolopoulou
- Division of Infectious Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Jay A. Fishman
- Division of Infectious Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- MGH Transplant Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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5
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Legendre M, Marechal E, Rebibou JM, Gaiffe E, Courivaud C, Bamoulid J, Crepin T, Ducloux D. Genetic determinant of thymopoiesis and clinical outcomes in renal transplantation. Nephrol Dial Transplant 2021; 36:2345-2347. [PMID: 34003262 DOI: 10.1093/ndt/gfab180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- Mathieu Legendre
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Dijon, France
| | - Elise Marechal
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Dijon, France
| | - Jean-Michel Rebibou
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Dijon, France
| | | | - Cecile Courivaud
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Besançon, France
| | - Jamal Bamoulid
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Besançon, France
| | - Thomas Crepin
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Besançon, France
| | - Didier Ducloux
- INSERM, UMR 1098 Federation Hospitalo-Universitaire, INCREASE, Besançon, France.,University of Bourgogne-Franche-Comté, Faculté de Médecine et de Pharmacie, Besançon and Dijon, France.,Department of Nephrology, CHU Besançon, France
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6
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A Comprehensive Evaluation of Risk Factors for Pneumocystis Jirovecii Pneumonia in Adult Solid Organ Transplant Recipients: a Systematic Review and Meta-Analysis. Transplantation 2020; 105:2291-2306. [PMID: 33323766 DOI: 10.1097/tp.0000000000003576] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND There is no consensus guidance on when to reinitiate Pneumocystis jirovecii pneumonia (PJP) prophylaxis in solid organ transplant (SOT) recipients at increased risk. The 2019 American Society of Transplantation Infectious Diseases Community of Practice (AST IDCOP) guidelines suggested to continue or reinstitute PJP prophylaxis in those receiving intensified immunosuppression for graft rejection, CMV infection, higher dose of corticosteroids, or prolonged neutropenia. METHODS A literature search was conducted evaluating all literature from existence through April 22, 2020 using MEDLINE and EMBASE. (PROSPERO: CRD42019134204) RESULTS:: A total of 30 studies with 413 276 SOT recipients were included. The following factors were associated with PJP development: acute rejection (pooled odds ratio (pOR) = 2.35 (1.69, 3.26), study heterogeneity index (I)= 23.4%), cytomegalovirus (CMV)-related illnesses (pOR = 3.14 (2.30, 4.29), I=48%), absolute lymphocyte count < 500 cells/mm (pOR = 6.29[3.56, 11.13], I 0%), BK-related diseases (pOR = 2.59[1.22, 5.49], I 0%), HLA mismatch ≥ 3 (pOR = 1.83 [1.06, 3.17], I= 0%), rituximab use (pOR =3.03 (1.82, 5.04); I =0%) and polyclonal antibodies use for rejection (pOR = 3.92 [1.87, 8.19], I= 0%). On the other hand, sex, CMV mismatch, interleukin-2 inhibitors, corticosteroids for rejection, and plasmapheresis were not associated with developing PJP. CONCLUSION PJP prophylaxis should be considered in SOT recipients with lymphopenia, BK-related infections and rituximab exposure in addition to the previously mentioned risk factors in the AST IDCOP guidelines.
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7
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Zhu M, Ye N, Xu J. Clinical characteristics and prevalence of dihydropteroate synthase gene mutations in Pneumocystis jirovecii-infected AIDS patients from low endemic areas of China. PLoS One 2020; 15:e0238184. [PMID: 32911508 PMCID: PMC7482917 DOI: 10.1371/journal.pone.0238184] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 08/11/2020] [Indexed: 12/22/2022] Open
Abstract
Pneumocystis pneumonia (PCP) is an opportunistic and potentially life-threatening infection of AIDS patients caused by the fungus Pneumocystis jirovecii (P. jirovecii). Trimethoprim-sulfamethoxazole (TMP-SMX) is the most commonly used drug combination in the treatment and prophylaxis of PCP. However, with long-term use of this combination, mutations in the dihydropteroate synthase (DHPS) gene of P. jirovecii bring about the development of resistance. Data on the prevalence of P. jirovecii and its DHPS mutants in China, especially in low endemic areas, are still limited. Thus, in the present study, we measured the P. jirovecii infection rate among HIV-positive and AIDS (HIV/AIDS) patients with suspected PCP and investigated the relationship between CD4+ T cell count and PCP occurrence. As well as the polymerase chain reaction (PCR) analysis and sequencing, the restriction fragment length polymorphism (RFLP) method was used to analyze DHPS point mutation in P. jirovecii strains. P. jirovecii was detected in 40.82% of cases. The clinical symptoms and signs of PCP were not typical; with decreasing CD4+ T cell counts, PCP infection in HIV/AIDS patients increased. In only one case (1.67%), the patients' DHPS gene could not be cut by the Acc I restriction enzyme. Furthermore, mutation at codon 171 was detected in 11 cases and no mutation was found at codon 57. Patients treated with sulfamethoxazole combined with Voriconazole or Caspofungin exhibited favorable results. After treatment, the symptoms of dyspnea were alleviated, and chest computed tomography findings showed the improvement of lung shadows. These indicated that the prevalence of DHPS mutations in P. jirovecii isolates in AIDS-PCP patients in the region was low. Thus, the contribution of gene mutations to treatment failure requires further research.
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Affiliation(s)
- Mingli Zhu
- Department of Microbiology and Immunology, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Department of Clinical Laboratory, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Ning Ye
- Department of Clinical Laboratory, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, Zhejiang, China
| | - Jiru Xu
- Department of Microbiology and Immunology, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- * E-mail:
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8
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Freiwald T, Büttner S, Cheru NT, Avaniadi D, Martin SS, Stephan C, Pliquett RU, Asbe-Vollkopf A, Schüttfort G, Jacobi V, Herrmann E, Geiger H, Hauser IA. CD4 + T cell lymphopenia predicts mortality from Pneumocystis pneumonia in kidney transplant patients. Clin Transplant 2020; 34:e13877. [PMID: 32277846 DOI: 10.1111/ctr.13877] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 03/24/2020] [Accepted: 04/01/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pneumocystis jirovecii pneumonia (PcP) remains a life-threatening opportunistic infection after solid organ transplantation, even in the era of Pneumocystis prophylaxis. The association between risk of developing PcP and low CD4+ T cell counts has been well established. However, it is unknown whether lymphopenia in the context of post-renal transplant PcP increases the risk of mortality. METHODS We carried out a retrospective analysis of a cohort of kidney transplant patients with PcP (n = 49) to determine the risk factors for mortality associated with PcP. We correlated clinical and demographic data with the outcome of the disease. For CD4+ T cell counts, we used the Wilcoxon rank sum test for in-hospital mortality and a Cox proportional-hazards regression model for 60-day mortality. RESULTS In univariate analyses, high CRP, high neutrophils, CD4+ T cell lymphopenia, mechanical ventilation, and high acute kidney injury network stage were associated with in-hospital mortality following presentation with PcP. In a receiver-operator characteristic (ROC) analysis, an optimum cutoff of ≤200 CD4+ T cells/µL predicted in-hospital mortality, CD4+ T cell lymphopenia remained a risk factor in a Cox regression model. CONCLUSIONS Low CD4+ T cell count in kidney transplant recipients is a biomarker for disease severity and a risk factor for in-hospital mortality following presentation with PcP.
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Affiliation(s)
- Tilo Freiwald
- Medical Clinic III, Department of Nephrology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany.,Immunoregulation Section, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA.,Complement and Inflammation Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Stefan Büttner
- Medical Clinic III, Department of Nephrology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Nardos T Cheru
- Immunoregulation Section, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Despina Avaniadi
- Medical Clinic III, Department of Nephrology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Simon S Martin
- Department of Radiology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Christoph Stephan
- Department of Infectious Diseases, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Rainer U Pliquett
- Department of Nephrology and Diabetology, Carl-Thiem Hospital Cottbus, Cottbus, Germany
| | - Aida Asbe-Vollkopf
- Medical Clinic III, Department of Nephrology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Gundolf Schüttfort
- Department of Infectious Diseases, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Volkmar Jacobi
- Department of Radiology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Eva Herrmann
- Institute for Biostatistics and Mathematical Modeling, Goethe-University, Frankfurt, Germany
| | - Helmut Geiger
- Medical Clinic III, Department of Nephrology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
| | - Ingeborg A Hauser
- Medical Clinic III, Department of Nephrology, University Hospital Frankfurt, Goethe-University, Frankfurt, Germany
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9
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[Premature immune senescence and chronic kidney disease: Update and perspectives]. Nephrol Ther 2019; 16:9-18. [PMID: 31848067 DOI: 10.1016/j.nephro.2019.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 12/14/2022]
Abstract
Immune senescence is associated with age-related diseases (i.e. infectious disease, cardiovascular diseases and cancers). Chronic kidney disease patients die prematurely when compared with general population, because of a higher occurrence of infections, cardiovascular events and cancer. These diseases are commonly observed in the elderly population and frequently associated with immune senescence. Indeed, chronic kidney disease causes a premature aging of the T lymphocyte compartment, widely related to a decrease in thymic function, a phenomenon that plays a key role in the onset of age-related diseases in chronic kidney disease patients. The degree of immune senescence also influences patients' outcome after renal transplantation, particularly the risk of acute rejection and infections. Partial reversion of pre-transplant immune senescence is observed for some renal transplant patients. In conclusion, to reduce the increasing incidence of morbidity and mortality of chronic kidney disease patients, a better knowledge of uremia-induced immune senescence would help to pave the way to build clinical studies and promote innovative therapeutic approaches. We believe that therapeutic reversion and immune senescence prevention approaches will be part of the management of chronic kidney disease patients in the future.
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10
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Lee H, Han A, Choi C, Ahn S, Min SI, Min SK, Lee H, Kim YS, Yang J, Ha J. Proposal of a Selective Prophylaxis Strategy Based on Risk Factors to Prevent Early and Late Pneumocystis jirovecii Pneumonia after Renal Transplantation. KOREAN JOURNAL OF TRANSPLANTATION 2018. [DOI: 10.4285/jkstn.2018.32.4.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Ho Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Ahram Han
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Chanjoong Choi
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Sanghyun Ahn
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-il Min
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Seung-Kee Min
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Hajeong Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yon Su Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jaeseok Yang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Department of Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jongwon Ha
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Department of Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Korea
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11
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A Multicenter Case-control Study of the Effect of Acute Rejection and Cytomegalovirus Infection on Pneumocystis Pneumonia in Solid Organ Transplant Recipients. Clin Infect Dis 2018; 68:1320-1326. [DOI: 10.1093/cid/ciy682] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/10/2018] [Indexed: 02/06/2023] Open
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12
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Hosseini-Moghaddam SM, Krishnan RJ, Guo H, Kumar D. Cytomegalovirus infection and graft rejection as risk factors for pneumocystis pneumonia in solid organ transplant recipients: A systematic review and meta-analysis. Clin Transplant 2018; 32:e13339. [PMID: 29956379 DOI: 10.1111/ctr.13339] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 06/24/2018] [Indexed: 01/08/2023]
Abstract
A growing number of publications have reported the outbreaks of post-transplant pneumocystis pneumonia (PJP). In most studies, the onset of PJP was beyond 6-12 months of prophylaxis. Cytomegalovirus (CMV) infection and allograft rejection have been repeatedly reported as probable risk factors for post-transplant PJP. In this systematic review and meta-analysis, we determined the pooled effect estimates of these 2 variables as risk factors. Data sources included PUBMED, MEDLINE-OVID, EMBASE-OVID, Cochrane Library, Networked Digital Library of Theses and Dissertations, World Health Organization, and Web of Science. We excluded publications related to hematopoietic stem cell transplantation (HSCT) or Human Immunodeficiency Virus (HIV) patients. Eventually, 15 studies remained for the final stage of screening. Cytomegalovirus infection (OR: 3.30, CI 95%: 2.07-5.26, I2 : 57%, P = 0.006) and allograft rejection (OR:2.36, CI95%: 1.54-3.62, I2: 45.5%, P = 0.05) significantly increased the risk of post-transplant PJP. Extended prophylaxis targeting recipients with allograft rejection or CMV infection may reduce the risk of PJP.
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Affiliation(s)
- Seyed M Hosseini-Moghaddam
- MultiOrgan Transplant Program, Division of Infectious Diseases, Department of Medicine, London Health Sciences Centre, Western University, London, Ontario, Canada
| | - Rohin Jayaram Krishnan
- The Department of Epidemiology& Biostatistics, Western University, London, Ontario, Canada
| | - Hui Guo
- The Department of Epidemiology& Biostatistics, Western University, London, Ontario, Canada
| | - Deepali Kumar
- Multiorgan Transplant Program, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
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13
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Brakemeier S, Pfau A, Zukunft B, Budde K, Nickel P. Prophylaxis and treatment of Pneumocystis Jirovecii pneumonia after solid organ transplantation. Pharmacol Res 2018; 134:61-67. [PMID: 29890253 DOI: 10.1016/j.phrs.2018.06.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/21/2018] [Accepted: 06/07/2018] [Indexed: 12/17/2022]
Abstract
Pneumocystis jirovecii pneumonia (PJP) is an opportunistic infection diagnosed in immunocompromized patients. After solid organ transplantation, early infection has decreased as a result of effective prophylaxis, but late infections and even outbreaks caused by interpatient transmission of pneumocystis by air are present in the SOT community. Different risk factors for PJP have been described and several indications for PJP prophylaxis have to be considered by clinicians in patients even years after transplantation. Diagnosis of PJP is confirmed by microscopy and immunofluorescence staining of bronchial fluid but PCR as well as serum ß-D-Glucan analysis have become increasingly valuable diagnostic tools. Treatment of choice is Trimethoprim/sulfamethoxazole and early treatment improves prognosis. However, mortality of PJP in solid organ transplant patients is still high and many aspects including the optimal management of immunosuppression during PJP treatment require further investigations.
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Affiliation(s)
- Susanne Brakemeier
- Department of Nephrology and Medical Intensive Care, Charité, Berlin, Germany.
| | - Anja Pfau
- Department of Nephrology and Medical Intensive Care, Charité, Berlin, Germany
| | - Bianca Zukunft
- Department of Nephrology and Medical Intensive Care, Charité, Berlin, Germany
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité, Berlin, Germany
| | - Peter Nickel
- Department of Nephrology and Medical Intensive Care, Charité, Berlin, Germany
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14
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Dedeoglu B, Litjens NHR, de Weerd AE, Dor FJ, Klepper M, Reijerkerk D, Baan CC, Betjes MGH. T-Cell Composition of the Lymph Node Is Associated with the Risk for Early Rejection after Renal Transplantation. Front Immunol 2017; 8:1416. [PMID: 29163492 PMCID: PMC5663687 DOI: 10.3389/fimmu.2017.01416] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 10/12/2017] [Indexed: 01/03/2023] Open
Abstract
Background The T-cell composition within the lymph node (LN) of end-stage renal disease (ESRD) patients differs from the composition within the circulation. Activation of the alloreactive T-cell response within secondary lymphoid organs is important after organ transplantation. However, to date no data are present on LN T-cell subsets and the risk for acute rejection after kidney transplantation. Methods T cells from LNs of ESRD patients were analyzed for frequency of recent thymic emigrants, relative telomere length, expression of differentiation markers, and were related to the development of early acute rejection (EAR), occurring within 3 months after renal transplantation (RT). Furthermore, the alloreactive potential of mononuclear cells isolated from the LN and peripheral blood of 10 patients was analyzed. Measures of alloreactive potential included proliferation, cytokine production, frequencies of interferon-gamma-producing cells, and the presence of cytotoxic molecules. Results Patients with EAR were younger (p = 0.019), cytomegalovirus-seropositive (p = 0.037) and usually received dialysis prior to RT (p = 0.030). Next to this, patients with EAR showed a lower CD4:CD8 ratio (p = 0.027) within the LN. T cells from the LN were similar with regard to alloreactive capacity compared with those within the circulation. Univariate regression analysis showed that the CD4:CD8 ratio (OR: 0.67, p = 0.039), patient age (OR: 0.93, p = 0.024), and preemptive RT (OR: 0.11, p = 0.046) were associated with EAR. After a multivariate analysis, only the CD4:CD8 ratio (OR: 0.58, p = 0.019) and preemptive RT (OR:0.05, p = 0.012) were associated with EAR. Conclusion A lower CD4:CD8 ratio in the LN is associated with a higher risk for the development of rejection within 3 months after RT.
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Affiliation(s)
- Burç Dedeoglu
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Nicolle H R Litjens
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Annelies E de Weerd
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Frank Jmf Dor
- Department of Surgery, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Mariska Klepper
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Derek Reijerkerk
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Carla C Baan
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Michiel G H Betjes
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus University Medical Center, Rotterdam, Netherlands
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15
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Dedeoglu B, Meijers RWJ, Klepper M, Hesselink DA, Baan CC, Litjens NHR, Betjes MGH. Uremia-Associated Premature Aging of T Cells Does Not Predict Infectious Complications After Renal Transplantation. Am J Transplant 2016; 16:2324-33. [PMID: 26914971 DOI: 10.1111/ajt.13759] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 01/26/2016] [Accepted: 02/13/2016] [Indexed: 01/25/2023]
Abstract
Patients with end-stage renal disease have prematurely aged T cell systems. We tested whether T cell aging parameters were associated with the risk of infections after renal transplantation (RTx). We studied 188 patients over 1 year. Peripheral T cells were analyzed before and at 3 and 6 mo after RTx for frequency of recent thymic emigrants, relative telomere length and differentiation status. These parameters were related to the occurrence of opportunistic and serious infections. Overall, 84 patients developed an infection. In this group, 50 developed an opportunistic infection and 53 developed a serious infection. T cell aging parameters assessed before RTx were not associated with infection risk. The memory T cells showed a decrease within the first 3 mo in both groups (p < 0.001). The CD4(+) memory T cells increased between 3 and 6 mo within the infection group (p = 0.015). The number of CD8(+) memory T cells increased in both groups (p < 0.001) but reached baseline levels only in the infection group. In the infection group, the CD8(+) CD28(null) T cell percentage increased between 3 and 6 mo (p = 0.024), tending to be higher than at baseline (p = 0.061). These differences in post-RTx dynamics resulted from infections. Parameters of uremia-associated premature aging of peripheral T cells do not predict posttransplant infections.
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Affiliation(s)
- B Dedeoglu
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - R W J Meijers
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - M Klepper
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - D A Hesselink
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - C C Baan
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - N H R Litjens
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - M G H Betjes
- Department of Internal Medicine, Section Nephrology and Transplantation, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
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16
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Liebling M, Rubio E, Ie S. Prophylaxis for Pneumocystis jiroveci pneumonia: is it a necessity in pulmonary patients on high-dose, chronic corticosteroid therapy without AIDS? Expert Rev Respir Med 2015; 9:171-81. [PMID: 25771943 DOI: 10.1586/17476348.2015.1002471] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The benefit of prophylaxis for Pneumocystis jirovecii pneumonia (PJP) is well documented in immunocompromised patients, particularly those with HIV and/or AIDS; therefore, guidelines dictate this as standard of care. However, there is a paucity of literature regarding those without HIV and/or AIDS who are potentially predisposed to PJP, including patients with sarcoidosis, cryptogenic organizing pneumonia, interstitial lung disease, asthma and chronic obstructive pulmonary disease, who may require high dose of prolonged corticosteroids for disease maintenance or to prevent relapses. In this review, the authors examine the available literature regarding prophylaxis in these groups, elaborate on the pathogenesis of PJP, when to suspect PJP in these patients, as well as explore current recommendations that guide clinical practice regarding implementation of PJP prophylaxis, namely with trimethoprim/sulfamethoxazole being the preferred agent. In summary, the role of PJP prophylaxis in non-HIV patients on chronic steroids remains controversial. The authors present a review of the literature to provide better guidance to the clinician regarding the need to initiate PJP prophylaxis in this patient population.
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Affiliation(s)
- Maryjane Liebling
- Department of Pulmonary, Critical Care, and Sleep Medicine, Carilion Clinic, P.O. Box 13367, Roanoke, VA 24033, USA
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17
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Goto N, Futamura K, Okada M, Yamamoto T, Tsujita M, Hiramitsu T, Narumi S, Watarai Y. Management of Pneumocystis jirovecii Pneumonia in Kidney Transplantation to Prevent Further Outbreak. CLINICAL MEDICINE INSIGHTS-CIRCULATORY RESPIRATORY AND PULMONARY MEDICINE 2015; 9:81-90. [PMID: 26609250 PMCID: PMC4648609 DOI: 10.4137/ccrpm.s23317] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/11/2015] [Accepted: 08/12/2015] [Indexed: 12/19/2022]
Abstract
The outbreak of Pneumocystis jirovecii pneumonia (PJP) among kidney transplant recipients is emerging worldwide. It is important to control nosocomial PJP infection. A delay in diagnosis and treatment increases the number of reservoir patients and the number of cases of respiratory failure and death. Owing to the large number of kidney transplant recipients compared to other types of organ transplantation, there are greater opportunities for them to share the same time and space. Although the use of trimethoprim-sulfamethoxazole (TMP-SMX) as first choice in PJP prophylaxis is valuable for PJP that develops from infections by trophic forms, it cannot prevent or clear colonization, in which cysts are dominant. Colonization of P. jirovecii is cleared by macrophages. While recent immunosuppressive therapies have decreased the rate of rejection, over-suppressed macrophages caused by the higher levels of immunosuppression may decrease the eradication rate of colonization. Once a PJP cluster enters these populations, which are gathered in one place and uniformly undergoing immunosuppressive therapy for kidney transplantation, an outbreak can occur easily. Quick actions for PJP patients, other recipients, and medical staff of transplant centers are required. In future, lifelong prophylaxis may be required even in kidney transplant recipients.
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Affiliation(s)
- Norihiko Goto
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Kenta Futamura
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Manabu Okada
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Takayuki Yamamoto
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Makoto Tsujita
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Takahisa Hiramitsu
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Shunji Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Yoshihiko Watarai
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
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18
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Luque Y, Jamme M, Rabant M, DeWolf S, Noël LH, Thervet E, Chatenoud L, Snanoudj R, Anglicheau D, Legendre C, Candon S, Zuber J. Long-term CD4 lymphopenia is associated with accelerated decline of kidney allograft function. Nephrol Dial Transplant 2015; 31:487-95. [DOI: 10.1093/ndt/gfv362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 09/15/2015] [Indexed: 11/12/2022] Open
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19
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Yanagisawa K, Ogawa Y, Uchiumi H, Gohda F, Mawatari M, Ishizaki T, Mitsui T, Yokohama A, Handa H, Tsukamoto N, Nojima Y. Gene polymorphisms of mannose-binding lectin confer susceptibility to Pneumocystis pneumonia in HIV-infected patients. J Infect Chemother 2015; 21:769-75. [PMID: 26271591 DOI: 10.1016/j.jiac.2015.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/12/2015] [Accepted: 07/13/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Mannose-binding lectin (MBL) plays an important role in innate immunity. The aim of this study was to determine whether genetic variants of MBL confer susceptibility to Pneumocystis pneumonia (PCP) in patients with advanced human immunodeficiency virus (HIV) infections. OBJECTIVE HIV patients (n = 53) having CD4 counts <200/μL who were admitted to our hospital were analyzed. Of these 53 patients, 30 had PCP at admission, and 23 did not. Genotypes at six single nucleotide polymorphisms (SNP) in MBL2 gene and serum MBL levels were determined for each patient, and compared between patients with or without PCP. We also examined whether MBL enhances phagocytosis of macrophages against rat-type Pneumocystis organism in vitro. RESULTS Genotypes associated with low production of MBL were significantly more common in the PCP group than in the non-PCP group (P = 0.049, odds ratio 2.17, 95% CI 1.02-4.63). Serum MBL levels were significantly higher in the non-PCP group (P = 0.039). Findings from in vitro experiments indicated that MBL act as a direct opsonin enhancing macrophage-mediated phagocytosis of Pneumocystis organisms. CONCLUSION Genetic variation of MBL production influences susceptibility to PCP in patients with advanced HIV infection, and can be regarded as a risk factor for PCP.
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Affiliation(s)
- Kunio Yanagisawa
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | - Yoshiyuki Ogawa
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan.
| | - Hideki Uchiumi
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | - Fumito Gohda
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | - Momoko Mawatari
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | - Takuma Ishizaki
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | - Takeki Mitsui
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | - Akihiko Yokohama
- Gunma University Hospital, Division of Blood Transfusion Service, Japan
| | - Hiroshi Handa
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
| | | | - Yoshihisa Nojima
- Gunma University Graduate School of Medicine, Department and Medicine and Clinical Science, Japan
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20
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Clindamycin–primaquine for pneumocystis jiroveci pneumonia in renal transplant patients. Infection 2014; 42:981-9. [DOI: 10.1007/s15010-014-0660-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 07/01/2014] [Indexed: 12/26/2022]
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21
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Fernández-Ruiz M, López-Medrano F, Allende LM, Andrés A, García-Reyne A, Lumbreras C, San-Juan R, Morales JM, Paz-Artal E, Aguado JM. Kinetics of peripheral blood lymphocyte subpopulations predicts the occurrence of opportunistic infection after kidney transplantation. Transpl Int 2014; 27:674-85. [DOI: 10.1111/tri.12321] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 01/26/2014] [Accepted: 03/16/2014] [Indexed: 12/20/2022]
Affiliation(s)
- Mario Fernández-Ruiz
- Unit of Infectious Diseases; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Francisco López-Medrano
- Unit of Infectious Diseases; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Luis M. Allende
- Department of Immunology; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Amado Andrés
- Department of Nephrology; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Ana García-Reyne
- Unit of Infectious Diseases; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Carlos Lumbreras
- Unit of Infectious Diseases; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Rafael San-Juan
- Unit of Infectious Diseases; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - José M. Morales
- Department of Nephrology; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - Estela Paz-Artal
- Department of Immunology; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
| | - José M. Aguado
- Unit of Infectious Diseases; Hospital Universitario “12 de Octubre”. Instituto de Investigación Hospital “12 de Octubre” (i+12). School of Medicine; Universidad Complutense; Madrid Spain
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