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Lee JS, Kim S, Kim S, Ahn K, Min DH. Fluorometric Viral miRNA Nanosensor for Diagnosis of Productive (Lytic) Human Cytomegalovirus Infection in Living Cells. ACS Sens 2021; 6:815-822. [PMID: 33529521 DOI: 10.1021/acssensors.0c01843] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A human cytomegalovirus (HCMV) causes a persistent asymptomatic infection in healthy individuals and possesses unexpected dangers to newborn babies, immunocompromised people, and organ transplant recipients because of stealth transmission. Thus, an early and accurate diagnosis of HCMV infection is crucial for prevention of unexpected transmission and progression of the severe diseases. The standard method of HCMV diagnosis depends on serology, antigen test, and polymerase chain reaction-based nucleic acid detection, which have advantages for each target molecule. However, the serological test for an antibody is an indirect method assuming the past virus infection, and antigen and viral nucleic acid testing demand laborious, complex multistep procedures for direct virus detection. Herein, we present an alternative simple and facile fluorometric biosensor composed of a graphene oxide nanocolloid and fluorescent peptide nucleic acid (PNA) probe to detect the HCMV infection by simply monitoring the virally encoded microRNA as a new biomarker of lytic virus infection. We verify the sensing of HCMV-derived microRNA accumulated within 72 h after HCMV infection and examine the diagnosis of HCMV in living cells. We proceed with the time course and concentration-dependent investigation of hcmv-miRNA sensing in living cells as a direct method of HCMV detection at the molecular level on the basis of an intracellular hcmv-miRNA expression profile and graphene oxide nanocolloid-based simple diagnostic platform. The fluorometric biosensor enables the sequence-specific binding to the target HCMV miRNAs in HCMV-infected fibroblasts and shows the quantitative detection capability of HCMV infection to be as low as 4.15 × 105 immunofluorescence focus unit (IFU)/mL of the virus titer at 48 h post-infection with picomolar sensitivity for HCMV miRNA.
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Affiliation(s)
- Ji-Seon Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Seongchan Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Sungchul Kim
- Center for RNA Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kwangseog Ahn
- Center for RNA Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Dal-Hee Min
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Biotherapeutics Convergence Technology, Lemonex Inc., Seoul 08826, Republic of Korea
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52
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Brahier M, Neuda R, Davis W, Poon R. 'Lipo-tourism' gone wrong: blood transfusion-transmitted cytomegalovirus disease. BMJ Case Rep 2021; 14:14/3/e236892. [PMID: 33664022 PMCID: PMC7934768 DOI: 10.1136/bcr-2020-236892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Medical tourism is the pursuit of more affordable surgeries; however, this comes at the risk of suboptimal standards and potential for life-threatening complications. In this case, we describe the diagnostic challenge of cytomegalovirus (CMV) pneumonia in a 40-year-old woman who experienced wound dehiscence and subsequent blood transfusion-transmitted CMV as complications of liposuction in the Dominican Republic. We explore the role of histopathology in the diagnosis of disseminated CMV, discuss the underlying aetiology of CMV pneumonia in this patient and weigh the risks and benefits of initiating antiviral therapy in an immunocompetent patient with CMV disease.
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Affiliation(s)
- Mark Brahier
- Georgetown University School of Medicine, Washington, DC, USA
| | - Rhanika Neuda
- Department of Internal Medicine, Georgetown University Medical Center, Washington, DC, USA
| | - William Davis
- Department of Infectious Disease, Georgetown University Medical Center, Washington, DC, USA
| | - Rita Poon
- Department of Internal Medicine, Georgetown University Medical Center, Washington, DC, USA
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53
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Da Cunha T, Wu GY. Cytomegalovirus Hepatitis in Immunocompetent and Immunocompromised Hosts. J Clin Transl Hepatol 2021; 9:106-115. [PMID: 33604261 PMCID: PMC7868697 DOI: 10.14218/jcth.2020.00088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/22/2020] [Accepted: 12/08/2020] [Indexed: 12/25/2022] Open
Abstract
Human cytomegalovirus (HCMV) infection is common and affects between 40-100% of the worldwide population. However, the majority of cases are asymptomatic and when severe disease occurs, it is usually restricted to immunocompromised patients. Liver involvement by HCMV differs significantly, accordingly to the immune status of the host. In immunocompromised patients, particularly liver transplant patients, it often causes clinically significant hepatitis. On the other hand, in immunocompetent patients, HCMV hepatitis requiring hospitalization is extremely rare. This review aims to appraise studies regarding the pathophysiology of HCMV hepatitis, including mechanisms of latency and reactivation and its contribution to disease development, clinical presentation, diagnostic modalities and treatment, with a focus on comparing different aspects between immunocompromised and immunocompetent hosts.
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Affiliation(s)
- Teresa Da Cunha
- Department of Medicine, Division of Gastroenterology-Hepatology, University of Connecticut Health Center, Farmington, CT, USA
- Correspondence to: Teresa Da Cunha, Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA. Tel: +1-860-706-2133, Fax: +1-860-679-3159, E-mail:
| | - George Y. Wu
- Department of Medicine, Division of Gastroenterology-Hepatology, University of Connecticut Health Center, Farmington, CT, USA
- Current address: Department of Medicine, University of Connecticut Health Center, Farmington, CT, USA
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54
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Payandeh M, Zamanian MH, Nomanpour B, Farhadi MS, Janbakhsh A, Rostamian M, Elahi A, Jafari S, Dehghannejad M. Survey of HCMV in allogenic and autologous stem cell transplantation by real-time PCR in Kermanshah, west of Iran. Infect Agent Cancer 2021; 16:8. [PMID: 33531035 PMCID: PMC7856721 DOI: 10.1186/s13027-021-00349-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/27/2021] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Human Cytomegalovirus (HCMV) is the most important viral pathogen in people undergoing bone marrow transplantation (BMT). HCMV detection in the early stages makes is possible to save the patients' lives through immediate and timely treatment. The aim of this study was to investigate the status of HCMV using the real-time PCR method in BMT patients in Kermanshah, west of Iran. METHODS HCMV monitoring was done in 120 patients who underwent BMT, 38 allogeneic cases and 82 autologous cases, using the ELISA serology test before transplantation. The participants were followed up 100 days after transplantation for HCMV detection in blood samples using real-time PCR. Preemptive therapy started with Ganciclovir and Foscarnet when the viral load was > 200 HCMV DNA copies/ml. RESULTS Despite preemptive therapy, infection recurred in less than 1 month. HCMV recurred more frequently in patients undergoing allogenic transplation versus those receiving autologous transplantation. Recurrence was seen in 5 patients receiving allogenic transplantation. HCMV recurrence occurred in five patients with allogeneic transplantation. Twelve patients undergoing allogeneic or autologous transplantation (83%) and a virus load of > 1000 copies/ml showed HCMV-related symptoms. Three patients died, two due to HCMV-related pneumonia and the other one due to a fungal infection. CONCLUSION Real-time PCR may be a useful method for quantification and monitoring of HCMV recurrence and may be helpful in choosing more efficient HCMV preemptive treatment in BMT recipients.
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Affiliation(s)
- Mehrdad Payandeh
- Hematology and Medical Oncology Dept., Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Hossein Zamanian
- Infectious Diseases Dept., School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Bizhan Nomanpour
- Microbiology Dept., Medical school of Kermanshah, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Alireza Janbakhsh
- Infectious Diseases Dept., School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mosayeb Rostamian
- Infectious Diseases Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Azam Elahi
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Somayeh Jafari
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Dehghannejad
- Medical School of Kermanshah, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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55
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Hartley GE, Edwards ESJ, Aui PM, Varese N, Stojanovic S, McMahon J, Peleg AY, Boo I, Drummer HE, Hogarth PM, O'Hehir RE, van Zelm MC. Rapid generation of durable B cell memory to SARS-CoV-2 spike and nucleocapsid proteins in COVID-19 and convalescence. Sci Immunol 2021; 5:5/54/eabf8891. [PMID: 33443036 PMCID: PMC7877496 DOI: 10.1126/sciimmunol.abf8891] [Citation(s) in RCA: 202] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/18/2020] [Indexed: 12/13/2022]
Abstract
Lasting immunity following SARS-CoV-2 infection is questioned because serum antibodies decline in convalescence. However, functional immunity is mediated by long-lived memory T and B (Bmem) cells. Therefore, we generated fluorescently-labeled tetramers of the spike receptor binding domain (RBD) and nucleocapsid protein (NCP) to determine the longevity and immunophenotype of SARS-CoV-2-specific Bmem cells in COVID-19 patients. A total of 36 blood samples were obtained from 25 COVID-19 patients between 4 and 242 days post-symptom onset including 11 paired samples. While serum IgG to RBD and NCP was identified in all patients, antibody levels began declining at 20 days post-symptom onset. RBD- and NCP-specific Bmem cells predominantly expressed IgM+ or IgG1+ and continued to rise until 150 days. RBD-specific IgG+ Bmem were predominantly CD27+, and numbers significantly correlated with circulating follicular helper T cell numbers. Thus, the SARS-CoV-2 antibody response contracts in convalescence with persistence of RBD- and NCP-specific Bmem cells. Flow cytometric detection of SARS-CoV-2-specific Bmem cells enables detection of long-term immune memory following infection or vaccination for COVID-19.
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Affiliation(s)
- Gemma E Hartley
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia
| | - Emily S J Edwards
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia
| | - Pei M Aui
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia
| | - Nirupama Varese
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia.,Department of Allergy, Immunology & Respiratory Medicine, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Stephanie Stojanovic
- Allergy, Asthma and Clinical Immunology, Alfred Health, Melbourne, VIC, Australia
| | - James McMahon
- Department of Infectious Diseases, The Alfred and Central Clinical school, Monash University, Melbourne, VIC, Australia.,Department of Infectious Diseases, Monash Health, Melbourne, VIC, Australia
| | - Anton Y Peleg
- Department of Infectious Diseases, The Alfred and Central Clinical school, Monash University, Melbourne, VIC, Australia.,Infection and Immunity Program, Monash Biomedicine Discovery Institute, Department of Microbiology, Monash University, Clayton, VIC, Australia
| | - Irene Boo
- Viral Entry and Vaccines Group, Burnet Institute, Melbourne, VIC, Australia
| | - Heidi E Drummer
- Viral Entry and Vaccines Group, Burnet Institute, Melbourne, VIC, Australia.,Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Department of Microbiology, Monash University, Clayton, VIC, Australia
| | - P Mark Hogarth
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia.,Immune Therapies Group, Burnet Institute, Melbourne, VIC, Australia.,Department of Pathology, The University of Melbourne, Parkville, VIC, Australia
| | - Robyn E O'Hehir
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia.,Department of Allergy, Immunology & Respiratory Medicine, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Allergy, Asthma and Clinical Immunology, Alfred Health, Melbourne, VIC, Australia
| | - Menno C van Zelm
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia. .,Department of Allergy, Immunology & Respiratory Medicine, Central Clinical School, Monash University, Melbourne, VIC, Australia
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56
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Cytomegalovirus reactivation in patients under immunosuppressive treatment for autoimmune haemolytic anaemia. Ann Hematol 2021; 101:227-228. [PMID: 33469687 DOI: 10.1007/s00277-021-04416-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/06/2021] [Indexed: 10/22/2022]
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57
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Heiran F, Khodaei-Mehr J, Vatankhah R, Sharifi M. Nonlinear adaptive control of immune response of renal transplant recipients in the presence of uncertainties. Biomed Signal Process Control 2021. [DOI: 10.1016/j.bspc.2020.102163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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58
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Padayachee WPR, Sadhwani S, Doherty SW, Mukendi AM, Van den Berg E, Botha AR. Haemorrhagic cystitis due to cytomegalovirus in a patient with AIDS. AFRICAN JOURNAL OF UROLOGY 2020. [DOI: 10.1186/s12301-020-00039-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Cytomegalovirus-related infections are commonly seen in immunocompromised patients. However, haemorrhagic cystitis is an exceptionally rare associated manifestation. We present an unusual case of cytomegalovirus-related haemorrhagic cystitis in a patient with acquired immune deficiency syndrome (AIDS).
Case presentation
A 33-year-old HIV-positive female presented with acute gross haematuria and suprapubic pain. Cystoscopy revealed features suggestive of haemorrhagic cystitis with clots in the bladder and an ulcerative lesion on the left lateral wall which was biopsied. Histology demonstrated the presence of enlarged cells containing eosinophilic intranuclear and ill-defined amphophilic intracytoplasmic inclusions. Immunohistochemistry was positive for cytomegalovirus.
Conclusion
This case appears to be the first of its kind reported in South Africa highlighting the importance of considering cytomegalovirus as a potential infectious aetiology in AIDS patients with haematuria. Bladder irrigation with normal saline with or without clot evacuation combined with Ganciclovir are associated with good outcome.
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59
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Gambardella A, Licata G, Calabrese G, De Rosa A, Pagliuca F, Alfano R, Argenziano G. CMV Infection: A Clinical Challenge in Biological Therapy? The Case of Asymptomatic Patients with Persistent Positive Immunoglobulin M Anti-CMV Treated with Secukinumab. PSORIASIS-TARGETS AND THERAPY 2020; 10:57-60. [PMID: 33282718 PMCID: PMC7711202 DOI: 10.2147/ptt.s284701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/11/2020] [Indexed: 12/13/2022]
Abstract
The use of biological therapy is now common practice in the treatment of immune-mediated inflammatory diseases (IMID). Currently, there are no guidelines related to the management of cytomegalovirus (CMV) infections or reactivation during therapy with biological agents. Furthermore, there is a lack of guidance on the management of asymptomatic patients with persistent positive immunoglobulin (Ig)M anti-CMV after an extended period and who have to undergo therapy with biological agents. We report the case of a patient in this situation for whom treatment with biological drugs for psoriasis was indicated. A good clinical response was obtained with secukinumab and maintained during 6 months of follow-up. No infectious disease or reactivation of CMV infection occurred. We suggest some possible guidelines for the management of such cases.
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Affiliation(s)
- Alessio Gambardella
- Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Gaetano Licata
- Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giulia Calabrese
- Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Alina De Rosa
- Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Francesca Pagliuca
- Division of Pathology, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Roberto Alfano
- Department of Anesthesiology, Surgery and Emergency, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giuseppe Argenziano
- Dermatology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
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60
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Griffiths ME, Bergner LM, Broos A, Meza DK, Filipe ADS, Davison A, Tello C, Becker DJ, Streicker DG. Epidemiology and biology of a herpesvirus in rabies endemic vampire bat populations. Nat Commun 2020; 11:5951. [PMID: 33230120 PMCID: PMC7683562 DOI: 10.1038/s41467-020-19832-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 11/02/2020] [Indexed: 12/20/2022] Open
Abstract
Rabies is a viral zoonosis transmitted by vampire bats across Latin America. Substantial public health and agricultural burdens remain, despite decades of bats culls and livestock vaccinations. Virally vectored vaccines that spread autonomously through bat populations are a theoretically appealing solution to managing rabies in its reservoir host. We investigate the biological and epidemiological suitability of a vampire bat betaherpesvirus (DrBHV) to act as a vaccine vector. In 25 sites across Peru with serological and/or molecular evidence of rabies circulation, DrBHV infects 80-100% of bats, suggesting potential for high population-level vaccine coverage. Phylogenetic analysis reveals host specificity within neotropical bats, limiting risks to non-target species. Finally, deep sequencing illustrates DrBHV super-infections in individual bats, implying that DrBHV-vectored vaccines might invade despite the highly prevalent wild-type virus. These results indicate DrBHV as a promising candidate vector for a transmissible rabies vaccine, and provide a framework to discover and evaluate candidate viral vectors for vaccines against bat-borne zoonoses.
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Affiliation(s)
- Megan E Griffiths
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK.
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
| | - Laura M Bergner
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Alice Broos
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Diana K Meza
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | | | - Andrew Davison
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Carlos Tello
- Association for the Conservation and Development of Natural Resources, Lima, Perú
- Yunkawasi, Lima, Perú
| | - Daniel J Becker
- Department of Biology, Indiana University, Bloomington, IN, USA
| | - Daniel G Streicker
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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61
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Viral Infections in Burn Patients: A State-Of-The-Art Review. Viruses 2020; 12:v12111315. [PMID: 33213058 PMCID: PMC7698518 DOI: 10.3390/v12111315] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/16/2020] [Indexed: 12/18/2022] Open
Abstract
Infections that are triggered by the accompanying immunosuppression in patients with burn wounds are very common regardless of age. Among burn patients, the most frequently diagnosed infections include the bacterial ones primarily caused by Pseudomonas aeruginosa or Klebsiella pneumonia, as well as fungal infections with the etiology of Candida spp. or Aspergillus spp. Besides, burn wounds are highly susceptible to viral infections mainly due to the impaired immune responses and defective functions of the immune cells within the wound microenvironment. The most prevalent viruses that invade burn wounds include herpes simplex virus (HSV), cytomegalovirus (CMV), human papilloma virus (HPV), and varicella zoster virus (VZV). Likewise, less prevalent infections such as those caused by the orf virus or Epstein-Barr Virus (EBV) might also occur in immunosuppressed burn patients. Viral infections result in increased morbidity and mortality rates in severely burned patients. Additionally, a positive correlation between the hospitalization duration and the severity of the viral infection has been demonstrated. Viral infections trigger the occurrence of various complications, ranging from mild symptoms to even fatal incidents. Accurate detection of viral infection is of great clinical importance because of the possibility for a quicker introduction of proper treatment therapy and shortening of hospitalization time. The aim of this paper is to provide a comprehensive review of the literature and summarize the findings regarding the most common viral infections in immunosuppressed burn patients.
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62
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Riis JL, Ahmadi H, Silke O, Granger SW, Bryce CI, Granger DA. Correspondence Between Cytomegalovirus Immunoglobulin-G Levels Measured in Saliva and Serum. Front Immunol 2020; 11:2095. [PMID: 32983163 PMCID: PMC7484902 DOI: 10.3389/fimmu.2020.02095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/03/2020] [Indexed: 12/05/2022] Open
Abstract
Human cytomegalovirus (HCMV) infects more than 80% of the global population. While mostly asymptomatic, HCMV infection can be serious among the immunocompromised, and it is implicated in chronic disease pathophysiology in adulthood. Large-scale minimally invasive HCMV screening could advance research and public health efforts to monitor infection prevalence and prevent or mitigate downstream risks associated with infection. We examine the utility of measuring HCMV immunoglobulin-G (IgG) levels in saliva as an index of serum levels. Matched serum and saliva samples from healthy adults (N = 98; 44% female; 51% white) were assayed for HCMV IgG, total salivary protein, and salivary markers related to oral inflammation, blood, and tissue integrity. We examine the serum-saliva association for HCMV IgG and assess the influence of participant characteristics and factors specific to the oral compartment (e.g., oral inflammation) on HCMV IgG levels and cross-specimen relations. We found a robust serum-saliva association for HCMV IgG with serum antibody levels accounting for >60% of the variance in salivary levels. This relation remained after adjusting for key demographic and oral immune-related variables. Compared to the serum test, the salivary HCMV IgG test had 51% sensitivity and 97% specificity. With improvements in assay performance and sample optimization, HCMV antibody levels in oral fluids may be a useful proxy for serum levels.
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Affiliation(s)
- Jenna L. Riis
- Institute for Interdisciplinary Salivary Bioscience Research, University of California, Irvine, Irvine, CA, United States
- Department of Psychological Science, University of California, Irvine, Irvine, CA, United States
| | - Hedyeh Ahmadi
- Institute for Interdisciplinary Salivary Bioscience Research, University of California, Irvine, Irvine, CA, United States
| | - Olivia Silke
- Department of Psychological Science, University of California, Irvine, Irvine, CA, United States
| | - Steve W. Granger
- Salimetrics Research and Technology Center, Carlsbad, CA, United States
| | - Crystal I. Bryce
- Institute for Interdisciplinary Salivary Bioscience Research, University of California, Irvine, Irvine, CA, United States
- T. Denny Sanford School of Social and Family Dynamics, Arizona State University, Tempe, AZ, United States
| | - Douglas A. Granger
- Institute for Interdisciplinary Salivary Bioscience Research, University of California, Irvine, Irvine, CA, United States
- Department of Psychological Science, University of California, Irvine, Irvine, CA, United States
- Salimetrics Research and Technology Center, Carlsbad, CA, United States
- Department of Acute and Chronic Care, Johns Hopkins University School of Nursing, Baltimore, MD, United States
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Salivary Bioscience Laboratory, Department of Psychology, University of Nebraska–Lincoln, Lincoln, NE, United States
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63
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Abstract
Cytometry technologies are able to profile immune cells at single-cell resolution. They are widely used for both clinical diagnosis and biological research. We developed a deep learning model for analyzing cytometry data. We demonstrated that the deep learning model accurately diagnoses the latent cytomegalovirus (CMV) in healthy individuals. In addition, we developed a method for interpreting the deep learning model, allowing us to identify biomarkers associated with latent CMV infection. The deep learning model is widely applicable to other cytometry data related to human diseases. Cytometry technologies are essential tools for immunology research, providing high-throughput measurements of the immune cells at the single-cell level. Existing approaches in interpreting and using cytometry measurements include manual or automated gating to identify cell subsets from the cytometry data, providing highly intuitive results but may lead to significant information loss, in that additional details in measured or correlated cell signals might be missed. In this study, we propose and test a deep convolutional neural network for analyzing cytometry data in an end-to-end fashion, allowing a direct association between raw cytometry data and the clinical outcome of interest. Using nine large cytometry by time-of-flight mass spectrometry or mass cytometry (CyTOF) studies from the open-access ImmPort database, we demonstrated that the deep convolutional neural network model can accurately diagnose the latent cytomegalovirus (CMV) in healthy individuals, even when using highly heterogeneous data from different studies. In addition, we developed a permutation-based method for interpreting the deep convolutional neural network model. We were able to identify a CD27- CD94+ CD8+ T cell population significantly associated with latent CMV infection, confirming the findings in previous studies. Finally, we provide a tutorial for creating, training, and interpreting the tailored deep learning model for cytometry data using Keras and TensorFlow (https://github.com/hzc363/DeepLearningCyTOF).
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64
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Bulka CM, Bommarito PA, Aiello AE, Fry RC. Cytomegalovirus seroprevalence, recurrence, and antibody levels: Associations with cadmium and lead exposures in the general United States population. Environ Epidemiol 2020; 4:e100. [PMID: 32832839 PMCID: PMC7423529 DOI: 10.1097/ee9.0000000000000100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 05/12/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The ubiquitous metals cadmium and lead are immunotoxic, but little is known about their relations to cytomegalovirus (CMV), a widespread herpesvirus. Although CMV infections are mostly asymptomatic, congenital infections are a leading cause of birth defects. In otherwise healthy individuals, there is also some evidence linking subclinical reactivations to accelerated age-related declines in immune function and chronic disease. METHODS Our objective was to evaluate associations of blood cadmium and lead biomarkers with CMV infection in a representative sample of the United States population. In seropositive individuals, we also examined associations with CMV-specific immunoglobulin G (IgG) antibody levels and suspected CMV recurrences. Using cross-sectional data from the 1999-2004 National Health and Nutrition Examination Surveys, we fit multivariable survey-weighted regression models accounting for potential confounding by sociodemographic and lifestyle factors and stratifying by age group to allow for heterogeneity. CMV recurrences were defined according to (1) the presence of either CMV-specific immunoglobulin M in sera or CMV viral DNA in urine, and (2) high CMV-specific IgG avidity. RESULTS We observed null associations for blood cadmium. Increasing blood lead quartiles were related to CMV seropositivity and higher CMV IgG levels (both P trend < 0.01), but not CMV recurrence, only among individuals who were 20-29 years of age. CONCLUSION Blood cadmium levels do not appear to be related to immunological markers of CMV infections. The possibility that lead exposures increase the risk of CMV infection and impair immune control of the virus in young adults was suggested. Prospective studies are needed to confirm.
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Affiliation(s)
- Catherine M. Bulka
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Paige A. Bommarito
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - Allison E. Aiello
- Department of Epidemiology, Gillings School of Public Health, University of North Carolina, Chapel Hill, North Carolina
- Carolina Population Center, University of North Carolina, Chapel Hill, North Carolina
| | - Rebecca C. Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
- Institute for Environmental Health Solutions, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
- Curriculum in Toxicology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Janković M, Ćupić M, Knežević A, Vujić D, Soldatović I, Zečević Ž, Gobeljić B, Jovanović T. Cytomegalovirus glycoprotein B and N genotypes in pediatric recipients of the hematopoietic stem cell transplant. Virology 2020; 548:168-173. [PMID: 32838938 DOI: 10.1016/j.virol.2020.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/13/2020] [Indexed: 11/17/2022]
Abstract
Clinical significance of the cytomegalovirus (CMV) genotypes in patients undergoing allogeneic hematopoietic stem cell transplant (HSCT) has been evaluated mostly in adults. The studies of diverse CMV glycoprotein B (gB) and N (gN) genotype variants in transplanted children and adolescents are lacking. We analyzed the investment of gB and gN genotype variants in the HSCTed children and their relation to clinical complications and disease outcome. The cohort included forty two pediatric recipients of the HSCT. Patients positive for CMV DNAemia (24/42, 57.1%) were genotyped. The gB4 and gN1 genotype variants predominated and were evidenced in 7/18 (38.9%) and 9/19 (47.4%) patients, respectively. The graft-versus-host disease (GvHD) predominated in children with viremia (p < 0.05). Frequencies of the gB and gN genotypes contrasted those reported in recent studies. The GvHD scaled strongly with CMV reactivation whereas viral loads were uncorrelated to medical complications and treatment outcomes.
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Affiliation(s)
- Marko Janković
- Institute of Microbiology and Immunology, Department of Virology, University of Belgrade, Faculty of Medicine, 11000, Belgrade, 1 Dr Subotića starijeg Street, Serbia.
| | - Maja Ćupić
- Institute of Microbiology and Immunology, Department of Virology, University of Belgrade, Faculty of Medicine, 11000, Belgrade, 1 Dr Subotića starijeg Street, Serbia
| | - Aleksandra Knežević
- Institute of Microbiology and Immunology, Department of Virology, University of Belgrade, Faculty of Medicine, 11000, Belgrade, 1 Dr Subotića starijeg Street, Serbia
| | - Dragana Vujić
- Mother and Child Health Care Institute of Serbia "Dr Vukan Čupić", Faculty of Medicine, 11000, Belgrade, 8 Radoja Dakića Street, Serbia
| | - Ivan Soldatović
- Institute of Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, 15 Dr Subotića starijeg Street, Serbia
| | - Željko Zečević
- Mother and Child Health Care Institute of Serbia "Dr Vukan Čupić", Faculty of Medicine, 11000, Belgrade, 8 Radoja Dakića Street, Serbia
| | - Borko Gobeljić
- Mother and Child Health Care Institute of Serbia "Dr Vukan Čupić", Faculty of Medicine, 11000, Belgrade, 8 Radoja Dakića Street, Serbia
| | - Tanja Jovanović
- Institute of Microbiology and Immunology, Department of Virology, University of Belgrade, Faculty of Medicine, 11000, Belgrade, 1 Dr Subotića starijeg Street, Serbia
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66
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Diagnosis of cytomegalovirus infection from clinical whole genome sequencing. Sci Rep 2020; 10:11020. [PMID: 32620939 PMCID: PMC7335102 DOI: 10.1038/s41598-020-67656-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/05/2020] [Indexed: 12/31/2022] Open
Abstract
Rapid whole genome sequencing (rWGS) of peripheral blood has been used to detect microbial DNA in acute infections. Cytomegalovirus (CMV) is a herpesvirus capable of causing severe disease in neonates and immunocompromised patients. We identified CMV in patients undergoing diagnostic rWGS by matching reads that did not align to the human reference genome to a database of microbial genomes. rWGS was conducted on peripheral blood obtained from ill pediatric patients (age 1 day to 18 years). Reads not aligning to the human genome were analyzed using an in-house pipeline to identify DNA consistent with CMV infection. Of 669 patients who received rWGS from July 2016 through July 2019, we identified 28 patients (4.2%) with reads that aligned to the CMV reference genome. Six of these patients had clinical findings consistent with symptomatic CMV infection. Positive results were highly correlated (R2 > 0.99, p < 0.001) to a CMV-qPCR assay conducted on DNA isolated from whole blood samples. In acutely ill children receiving rWGS for diagnosis of genetic disease, we propose analysis of patient genetic data to identify CMV, which could impact treatment of up to 4% of children in the intensive care unit.
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67
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Osborne CS, Overstreet AN, Rockey DC, Schreiner AD. Drug-Induced Liver Injury Caused by Kratom Use as an Alternative Pain Treatment Amid an Ongoing Opioid Epidemic. J Investig Med High Impact Case Rep 2020; 7:2324709619826167. [PMID: 30791718 PMCID: PMC6350132 DOI: 10.1177/2324709619826167] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Kratom (Mitragyna speciosa) is a prevalent medicinal plant used
mainly for the stimulant and analgesic properties provided through multiple
alkaloid compounds. Over the past decade, use of kratom has increased despite
the limited knowledge of toxicities and adverse side effects. With the current
opioid epidemic, both patients and providers are seeking alternative methods to
treat both addiction and pain control, and kratom as an alternative means of
treatment has increasingly entered the mainstream. In this article, we present
the clinical course of a 47-year-old male who developed fatigue, pruritus, and
abnormal liver tests (with a mixed hepatocellular/cholestatic pattern)
approximately 21 days after beginning kratom. After extensive evaluation
including a negligible alcohol history, negative hepatitis serologies, and
inconclusive imaging, the patient was diagnosed with drug-induced liver injury
(DILI) caused by kratom. Nine months after his liver tests returned to normal,
he took kratom again, and after a latency of 2 days, he developed fatigue,
pruritus, and loss of appetite along with abnormal liver tests (with the same
biochemical profile as previously), consistent with a positive rechallenge. We
believe, through the use of the Roussel-Uclaf Causality Assessment Method and
expert opinion, that this is a highly likely or definite example of
kratom-induced DILI. With the gaining popularity of this drug, it appears that
DILI may be an important complication of kratom for providers to recognize.
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Affiliation(s)
| | | | - Don C Rockey
- 1 Medical University of South Carolina, Charleston, SC, USA
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Kaminski MM, Alcantar MA, Lape IT, Greensmith R, Huske AC, Valeri JA, Marty FM, Klämbt V, Azzi J, Akalin E, Riella LV, Collins JJ. A CRISPR-based assay for the detection of opportunistic infections post-transplantation and for the monitoring of transplant rejection. Nat Biomed Eng 2020; 4:601-609. [PMID: 32284553 DOI: 10.1038/s41551-020-0546-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 03/06/2020] [Indexed: 12/26/2022]
Abstract
In organ transplantation, infection and rejection are major causes of graft loss. They are linked by the net state of immunosuppression. To diagnose and treat these conditions earlier, and to improve long-term patient outcomes, refined strategies for the monitoring of patients after graft transplantation are needed. Here, we show that a fast and inexpensive assay based on CRISPR-Cas13 accurately detects BK polyomavirus DNA and cytomegalovirus DNA from patient-derived blood and urine samples, as well as CXCL9 messenger RNA (a marker of graft rejection) at elevated levels in urine samples from patients experiencing acute kidney transplant rejection. The assay, which we adapted for lateral-flow readout, enables-via simple visualization-the post-transplantation monitoring of common opportunistic viral infections and of graft rejection, and should facilitate point-of-care post-transplantation monitoring.
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Affiliation(s)
- Michael M Kaminski
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.,Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.,Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Miguel A Alcantar
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Isadora T Lape
- Schuster Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Robert Greensmith
- Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.,Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Allison C Huske
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jacqueline A Valeri
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Francisco M Marty
- Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA, USA
| | - Verena Klämbt
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jamil Azzi
- Schuster Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Enver Akalin
- Montefiore Einstein Center for Transplantation, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Leonardo V Riella
- Schuster Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - James J Collins
- Institute for Medical Engineering and Science and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA. .,Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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Pellegrinelli L, Alberti L, Pariani E, Barbi M, Binda S. Diagnosing congenital Cytomegalovirus infection: don't get rid of dried blood spots. BMC Infect Dis 2020; 20:217. [PMID: 32164599 PMCID: PMC7069171 DOI: 10.1186/s12879-020-4941-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 03/01/2020] [Indexed: 11/22/2022] Open
Abstract
Background Congenital Cytomegalovirus (cCMV) is a serious global public health issue that can cause irreversible fetal and neonatal congenital defects in symptomatic or asymptomatic newborns at birth. In absence of universal cCMV screening, the retrospective diagnosis of cCMV infection in children is only possible by examining Dried Blood Spot (DBS) samples routinely collected at birth and stored for different time spans depending on the newborn screening regulations in force in different countries. In this article, we summarize the arguments in favor of long-term DBS sample storage for detecting cCMV infection. Main text CMV infection is the most common cause of congenital infection resulting in severe defects and anomalies that can be apparent at birth or develop in early childhood. Sensorineural hearing loss is the most frequent consequence of cCMV infection and may have a late onset and progress in the first years of life. The virological diagnosis of cCMV is essential for clinical research and public health practices. In fact, in order to assess the natural history of CMV infection and distinguish between congenital or acquired infection, children should be diagnosed early by analyzing biological samples collected in the first weeks of life (3 weeks by using viral culture and 2 weeks by molecular assays), which, unfortunately, are not always available for asymptomatic or mildly symptomatic children. It now seems possible to overcome this problem since the CMV-DNA present in the blood of congenitally infected newborns can be easily retrieved from the DBS samples on the Guthrie cards routinely collected and stored within 3 days from birth in the neonatal screening program for genetic and congenital diseases. Early collection and long-term storage are inexpensive methods for long-term bio-banking and are the key points of DBS testing for the detection of cCMV. Conclusion DBS sampling is a reliable and inexpensive method for long-term bio-banking, which enables to diagnose known infectious diseases - including cCMV - as well as diseases not jet recognized, therefore their storage sites and long-term storage conditions and durations should be the subject of political decision-making.
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Affiliation(s)
- Laura Pellegrinelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
| | - Luisella Alberti
- Newborn Screening Laboratory, ASST Fatebenefratelli Sacco-PO Ospedale dei Bambini "V. Buzzi", Milan, Italy
| | - Elena Pariani
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Maria Barbi
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Sandro Binda
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
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High-resolution profiling of human cytomegalovirus cell-free DNA in human plasma highlights its exceptionally fragmented nature. Sci Rep 2020; 10:3734. [PMID: 32111931 PMCID: PMC7048871 DOI: 10.1038/s41598-020-60655-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/14/2020] [Indexed: 11/14/2022] Open
Abstract
Human cytomegalovirus (CMV) infections comprise a leading cause of newborn impairments worldwide and are pervasive concerns among the immunocompromised. Quantification of CMV viral loads is increasingly used to guide definitions of CMV disease but standardization of CMV quantitation remains problematic, mostly due to differences in qPCR amplicon sizes between clinical laboratories. Here, we used plasma cfDNA sequencing data from 2,208 samples sent for non-invasive prenatal aneuploidy screening to detect CMV and precisely measure the length of CMV fragments in human plasma. CMV reads were identified in 120 (5.4%) samples. Median cfDNA fragment size derived from CMV was significantly shorter than cfDNA derived from human chromosomes (103 vs 172 bp, p < 0.0001), corresponding to the 3rd percentile of human cfDNA. Sequencing of cfDNA from seven plasma samples from transplant patients positive for CMV confirmed the extraordinarily short nature of CMV cfDNA fragment size with a median length of 149 bp. We further show that these high-resolution measurements of CMV DNA fragment size accurately predict measured discrepancies in serum viral load measurements by different qPCR assays. These results highlight the exceptionally fragmented nature of CMV cfDNA and illustrate the promise of plasma cfDNA sequencing for quantitating viral loads through detection of fragments that would be unrecoverable by qPCR.
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Abstract
OBJECTIVES To (1) identify the etiologies and risk factors of the patient cohort and determine the degree to which they reflected the incidence for children with hearing loss and (2) quantify practice management patterns in three catchment areas of the United States with available centers of excellence in pediatric hearing loss. DESIGN Medical information for 307 children with bilateral, mild-to-severe hearing loss was examined retrospectively. Children were participants in the Outcomes of Children with Hearing Loss (OCHL) study, a 5-year longitudinal study that recruited subjects at three different sites. Children aged 6 months to 7 years at time of OCHL enrollment were participants in this study. Children with cochlear implants, children with severe or profound hearing loss, and children with significant cognitive or motor delays were excluded from the OCHL study and, by extension, from this analysis. Medical information was gathered using medical records and participant intake forms, the latter reflecting a caregiver's report. A comparison group included 134 children with normal hearing. A Chi-square test on two-way tables was used to assess for differences in referral patterns by site for the children who are hard of hearing (CHH). Linear regression was performed on gestational age and birth weight as continuous variables. Risk factors were assessed using t tests. The alpha value was set at p < 0.05. RESULTS Neonatal intensive care unit stay, mechanical ventilation, oxygen requirement, aminoglycoside exposure, and family history were correlated with hearing loss. For this study cohort, congenital cytomegalovirus, strep positivity, bacterial meningitis, extracorporeal membrane oxygenation, and loop diuretic exposure were not associated with hearing loss. Less than 50% of children underwent imaging, although 34.2% of those scanned had abnormalities identified. No single imaging modality was preferred. Differences in referral rates were apparent for neurology, radiology, genetics, and ophthalmology. CONCLUSIONS The OCHL cohort reflects known etiologies of CHH. Despite available guidelines, centers of excellence, and high-yield rates for imaging, the medical workup for children with hearing loss remains inconsistently implemented and widely variable. There remains limited awareness as to what constitutes appropriate medical assessment for CHH.
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72
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Ksouri H, Chebbi Y, Raddaoui A, Achour W. Comparison of the CMV antigenemia and CMV-DNA QPCR results in haematopoetic stem cells transplanted recipients - A retrospective observational study. INDIAN JOURNAL OF TRANSPLANTATION 2020. [DOI: 10.4103/ijot.ijot_38_19] [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
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Perello R, Vergara A, Monclus E, Jimenez S, Montero M, Saubi N, Moreno A, Eto Y, Inciarte A, Mallolas J, Martínez E, Marcos MA. Cytomegalovirus infection in HIV-infected patients in the era of combination antiretroviral therapy. BMC Infect Dis 2019; 19:1030. [PMID: 31801482 PMCID: PMC6894188 DOI: 10.1186/s12879-019-4643-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 11/20/2019] [Indexed: 12/20/2022] Open
Abstract
Background Cytomegalovirus infection dramatically decreased with the introduction of antiretroviral therapy. Whether incidence, clinical characteristics and prognosis of cytomegalovirus in HIV infected patients, has changed over time is. scarcely known. Methods Retrospective single-center study. Patients included in this study were all HIV infected patients that went to our center for any disease, and were diagnosed with cytomegalovirus, during the period 2004–2015. epidemiological, clinical and laboratory patients variables were collected in a clinical database. Clinical characteristics, incidence of cytomegalovirus and predictors of mortality during the study were assessed. Results were considered statistically significant when p < 0.05. All statistical analyses were calculated by SPSS version 20.0 (Chicago, IL,USA). Results Fifty-six cases of cytomegalovirus infection, in HIV infected patients were identified during the study period (incidence rate-1.7 cases per 1000 persons/year). The most frequent presentation was systemic illness in 43% of cases. Of note,no patients presented with ophthalmic manifestations. The 30-days mortality was 18%. Predictors of mortality were, in the univariate analysis, admission to the intensive care unit OR 32.4 (3.65–287.06) p = 0.0001, and mechanic ventilation 84 OR (8.27–853.12) p = 0.0001, and ART OR 4.1 (0.97–17.31) p = 0.044. These variables were assessed by multivariate analysis, and only mechanical ventilation was statistically significant (p < 0.05) Conclusion Incidence of cytomegalovirus infection was higher than described in the antiretroviral therapy era. Clinical presentation has changed. Mechanic ventilation predicted mortality.
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Affiliation(s)
- R Perello
- Servicio de Urgencias, Hospital Clínic, Barcelona, Spain.
| | - A Vergara
- Servicio de Microbiología, CDB, Hospital Clínic, Barcelona, Spain
| | - E Monclus
- Servicio de Urgencias, Hospital Clínic, Barcelona, Spain
| | - S Jimenez
- Servicio de Urgencias, Hospital Clínic, Barcelona, Spain
| | - M Montero
- Servicio de Urgencias, Hospital Clínic, Barcelona, Spain
| | - N Saubi
- Servicio de Enfermedades Infecciosas, Hospital Clínic, Barcelona, Spain
| | - A Moreno
- Servicio de Microbiología, CDB, Hospital Clínic, Barcelona, Spain
| | - Y Eto
- Servicio de Enfermedades Infecciosas, Hospital Clínic, Barcelona, Spain
| | - A Inciarte
- Servicio de Enfermedades Infecciosas, Hospital Clínic, Barcelona, Spain
| | - J Mallolas
- Servicio de Enfermedades Infecciosas, Hospital Clínic, Barcelona, Spain
| | - E Martínez
- Servicio de Enfermedades Infecciosas, Hospital Clínic, Barcelona, Spain
| | - M A Marcos
- Servicio de Microbiología, CDB, Hospital Clínic, Barcelona, Spain
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Ueno R, Nishimura S, Fujimoto G, Piao Y, Takenaka K. The clinical and economic burden of cytomegalovirus management post allogeneic hematopoietic stem cell transplantation in Japan - a retrospective database study. Curr Med Res Opin 2019; 35:2089-2096. [PMID: 31353971 DOI: 10.1080/03007995.2019.1649379] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Introduction: Reactivation of cytomegalovirus (CMV) infection is a major threat and it causes significant morbidity and mortality after allogeneic hematopoietic stem cell transplantation (allo-HSCT). There remains, however, a paucity of evidence regarding the economic burden of current CMV management in Japan. The aim of this study is to characterize the healthcare resource utilization (HCRU) and cost incurred for CMV management post allo-HSCT, using a Japanese hospital claims database.Methods: Patients who underwent allo-HSCT between April 2010 and March 2018 were identified and followed up for 180 days.Results: In total, 916 patients were included for analysis and categorized into CMV (-) group and CMV (+) group based on the presence of a CMV episode within 100 days post allo-HSCT. A CMV episode was defined as evidence of receiving at least one dose of the following anti-CMV drugs, ganciclovir, foscarnet, or valganciclovir. The mean (± standard deviation [SD]) total length of stay was 93.6 (± 43.7) days in the CMV (+) group, which was significantly longer than 55.9 (±40.6) days in the CMV (-) group, and this trend was more pronounced in patients with multiple CMV episodes. The mean (±SD) total medical cost within 180 days post allo-HSCT was US$122,328 (±56,977) in the CMV (+) group, while the mean total medical cost was US$75,344 (±43,821) in the CMV (-) group. Moreover, transfusion and antimicrobial use was observed as the major medication cost component, which is suggestive of the indirect effect of CMV episodes.Conclusion: This study demonstrated that CMV episodes post allo-HSCT were associated with increased HCRU and cost.
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Affiliation(s)
| | | | | | - Yi Piao
- IQVIA Solutions Japan K.K., Tokyo, Japan
| | - Katsuto Takenaka
- Department of Hematology, Clinical Immunology and Infectious Diseases, Graduate School of Medicine, Ehime University, Toon, Japan
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Grossi PA, Baldanti F, Andreoni M, Perno CF. CMV infection management in transplant patients in Italy. J Clin Virol 2019; 123:104211. [PMID: 31879243 DOI: 10.1016/j.jcv.2019.104211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 10/01/2019] [Accepted: 11/04/2019] [Indexed: 12/27/2022]
Abstract
Transplant represents an effective strategy in the management of chronic organ dysfunction. Nonetheless, life threatening risks remain, especially in the post-transplant; among them, human cytomegalovirus (CMV) is a major concern, currently causing active infections in at least one-third of transplant recipients. Microbiologist and transplant scientific societies redefined guidance on CMV disease prevention and the best use for universal prophylaxis and pre-emptive virological monitoring. Developments in molecular diagnostic supported the spread of the pre-emptive strategy, and quantitative Real Time-PCR assays has unravelled the potential of viral load measurement as a predictor of the infection development in CMV post-transplant management. However, despite the WHO 1st CMV International Standard, the standardization of diagnostic and clinical practice has been limited by the absence of algorithms for calculating conversion factor to International Units and the lack of shared monitoring procedure, both at national and international level. At a regional level, the Italian scientific societies, AMCLI (Italian Clinical Microbiologist Association), SITO (Organ Transplant Italian Society), GITMO (Italian Group for Bone Marrow Transplant), recently tried to define a consensus for post-transplant monitoring. The concerted practice encompasses molecular quantitative PCR assays technical aspects and endorses the relevance of immunologic monitoring for improvement in patient risk stratification and prognosis. Here, we provide an overview of the state of the art of CMV management strategies, with a specific focus on the clinical practices and on the scientific societies' initiatives that aim to implement international standardization guidelines at a national level.
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Affiliation(s)
- Paolo Antonio Grossi
- Infectious Diseases Section, Department of Medicine and Surgery, University of Insubria, Varese; National Center for Transplantation, Rome, Italy
| | - Fausto Baldanti
- Molecular Virology Unit, Policlinic IRCCS Foundation San Matteo, Pavia, Italy
| | - Massimo Andreoni
- Infectious Disease Unit, Policlinic Foundation Tor Vergata, Rome, Italy; Department of Oncology and Oncohematology, University of Milan, Italy; Department of Clinical Virology, ASST Niguarda, Milan, Italy
| | - Carlo Federico Perno
- Infectious Disease Unit, Policlinic Foundation Tor Vergata, Rome, Italy; Department of Oncology and Oncohematology, University of Milan, Italy; Department of Clinical Virology, ASST Niguarda, Milan, Italy.
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77
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Ribeiro PAF, Souza MQ, Dias DS, Álvares ACM, Nogueira LM, Machado JM, Dos Santos JC, Godoi RR, Nobrega YKM, Campos-da-Paz M, de Freitas SM, Felipe MSS, Torres FAG, Galdino AS. A Custom-Designed Recombinant Multiepitope Protein for Human Cytomegalovirus Diagnosis. Recent Pat Biotechnol 2019; 13:316-328. [PMID: 31333134 DOI: 10.2174/1872208313666190716093911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/17/2019] [Accepted: 07/28/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND The Human Cytomegalovirus (HCMV) has infected more than 90% of the world population and its prevalence can be related to the individuals geographical and socialeconomic status. Serological tests based on ELISA are pivotal for HCMV diagnosis. Due to the lack of standardization in the production/purification of antigens from viral preparations, ELISA tests are based on several recombinant proteins or peptides. As an alternative, multiepitope proteins may be employed. OBJECTIVE In this work, we developed a recombinant multiepitope protein (rMEHCMV) for HCMV diagnosis based on conserved and immunodominant epitopes derived from tegument (pp150, pp65 and pp28), glycoprotein gB (pp38) and DNA polymerase subunit (pp52) of HCMV. METHODS The rMEHCMV gene was synthesized de novo and overexpressed in Escherichia coli cells. The recombinant protein was purified to homogeneity using a Ni-NTA column. Biophysical analysis of recombinant protein was performed by circular dichroism. A preliminary biological activity test was performed using 12 positive human sera samples by using an in-house IgG ELISA. The following patents database were consulted: Espacenet, Google Patents and the National Institute of Intellectual Property (INPI, Brazil). RESULTS The recombinant multiepitope protein was successfully expressed in E. coli. The structural data obtained by circular dichroism spectroscopy showed that rMEHCMV is structurally disordered. An in-house IgG ELISA test with rMEHCMV was successfully used to recognized IgG from human serum samples. CONCLUSION Together, our results show that rMEHCMV should be considered as a potential antigenic target for HCMV diagnosis.
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Affiliation(s)
- Patrícia A F Ribeiro
- Laboratorio de Biotecnologia de Microrganismos, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
| | - Marilen Q Souza
- Departamento de Biologia Celular, Universidade de Brasilia, Brasília, DF, 70910-900, Brazil
| | - Daniel S Dias
- Laboratorio de Biotecnologia de Microrganismos, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
| | - Alice C M Álvares
- Laboratorio de Biofisica, Universidade de Brasilia, Brasilia, DF, 70910-900, Brazil
| | - Laís M Nogueira
- Laboratorio de Biotecnologia de Microrganismos, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
| | - Juliana M Machado
- Laboratorio de Biotecnologia de Microrganismos, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
| | - José C Dos Santos
- Departamento de Biologia Celular, Universidade de Brasilia, Brasília, DF, 70910-900, Brazil
| | - Renato R Godoi
- Laboratorio de Biotecnologia de Microrganismos, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
| | - Yanna K M Nobrega
- Laboratorio de Doencas Imunogeneticas e Cronico-degenerativas, Universidade de Brasilia, Brasilia, DF, 70910-900, Brazil
| | - Mariana Campos-da-Paz
- Laboratorio de Nanobiotecnologia, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
| | - Sonia M de Freitas
- Laboratorio de Biofisica, Universidade de Brasilia, Brasilia, DF, 70910-900, Brazil
| | - Maria S S Felipe
- Departamento de Biologia Celular, Universidade de Brasilia, Brasília, DF, 70910-900, Brazil
| | - Fernando A G Torres
- Departamento de Biologia Celular, Universidade de Brasilia, Brasília, DF, 70910-900, Brazil
| | - Alexsandro S Galdino
- Laboratorio de Biotecnologia de Microrganismos, Universidade Federal de Sao Joao Del-Rei, Divinopolis, MG, 35501-296, Brazil
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Crowe BR, Duenas SM, Serrano A, Kingsbery J, Williams R. Strongyloides stercoralis Hyperinfection and Concomitant Cytomegalovirus Gastroenteritis in an Immunocompromised Host. ACG Case Rep J 2019; 6:e00135. [PMID: 31620532 PMCID: PMC6722353 DOI: 10.14309/crj.0000000000000135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 05/13/2019] [Indexed: 11/17/2022] Open
Abstract
Strongyloides stercoralis infection typically presents with nonspecific gastrointestinal symptoms and no definitive or pathognomonic endoscopic findings. Disease burden can vary depending on a patient's immune status. Immunocompromised patients with strongyloidiasis can develop tremendous disease burden, extraintestinal dissemination, and are at risk for coinfection with other organisms. We present the case of an immunocompromised patient presenting with multiple gastrointestinal complaints found to have S. stercoralis hyperinfection and concomitant cytomegalovirus gastroenteritis.
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Affiliation(s)
- Brooks R. Crowe
- Department of Internal Medicine, New York University School of Medicine, New York, NY
| | - Sean M. Duenas
- Department of Internal Medicine, New York University School of Medicine, New York, NY
| | - Antonio Serrano
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Joseph Kingsbery
- Department of Internal Medicine, New York University School of Medicine, New York, NY
| | - Renee Williams
- Department of Internal Medicine, New York University School of Medicine, New York, NY
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79
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Ishii T, Sasaki Y, Maeda T, Komatsu F, Suzuki T, Urita Y. Clinical differentiation of infectious mononucleosis that is caused by Epstein-Barr virus or cytomegalovirus: A single-center case-control study in Japan. J Infect Chemother 2019; 25:431-436. [PMID: 30773381 PMCID: PMC7128249 DOI: 10.1016/j.jiac.2019.01.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 12/12/2022]
Abstract
Introduction Infectious mononucleosis (IM) is a common viral infection that typically causes fever, pharyngitis, and lymphadenopathy in young patients. The Epstein-Barr virus (EBV) is the most common cause of IM, followed by cytomegalovirus (CMV). Given that serological testing is associated with limitations regarding its accuracy, availability, and time to receive results, clinical differentiation based on symptoms, signs, and basic tests would be useful. We evaluated whether clinical findings could be used to differentiate EBV-IM from CMV-IM. Methods In this single-center retrospective case-control study, we evaluated >14-year-old patients with serologically confirmed EBV-IM or CMV-IM during 2006–2017. We compared the patients’ symptoms, physical findings, blood counts, and serum biomarkers to create three regression models: model 1 (symptoms and signs), model 2 (model 1 plus sonographic hepatosplenomegaly and blood counts), and model 3 (model 2 plus hepatobiliary biomarkers). Results Among the 122 patients (72.6%) with EBV-IM and 46 patients (27.4%) with CMV-IM, the median age was 25 years and 82 patients (48.8%) were male. The median age was 10 years older in the CMV-IM group (p < 0.001) and the median interval from onset to visit was 5 days longer in the CMV-IM group (p < 0.001). Logistic regression revealed that EBV-IM was predicted by younger age, short onset-to-visit interval, lymphadenopathy, tonsillar white coat, hepatosplenomegaly, atypical lymphocytosis, and elevations of lactate dehydrogenase and gamma-glutamyl transferase. All regression models had areas under the curve of >0.9. Conclusion History and physical findings, especially when used with atypical lymphocytosis and sonographic hepatosplenomegaly, can help physicians differentiate EBV-IM from CMV-IM.
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Affiliation(s)
- Takamasa Ishii
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Japan
| | - Yosuke Sasaki
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Japan.
| | - Tadashi Maeda
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Japan
| | - Fumiya Komatsu
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Japan
| | - Takeshi Suzuki
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Japan
| | - Yoshihisa Urita
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Japan
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80
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Jaing TH, Chang TY, Chen SH, Wen YC, Yu TJ, Lee CF, Yang CP, Tsay PK. Factors associated with cytomegalovirus infection in children undergoing allogeneic hematopoietic stem-cell transplantation. Medicine (Baltimore) 2019; 98:e14172. [PMID: 30681583 PMCID: PMC6358375 DOI: 10.1097/md.0000000000014172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
While preemptive therapy with ganciclovir (GCV) for cytomegalovirus (CMV) infection is used following allogeneic hematopoietic stem-cell transplantation (HSCT), risk factors for CMV infection in children undergoing HSCT are poorly understood.We studied CMV reactivation following allogeneic HSCT by retrospectively analyzing pediatric patients who received allogeneic HSCT and preemptive GCV therapy between 1998 and 2016. The level of viremia requiring preemptive GCV therapy was >1 CMV antigen-positive cells per 5 × 10 leukocytes during the antigenemia assay era and >1000 copies/mL in the polymerase chain reaction era. Among 290 at-risk patients, 54 (18.6%) patients had primary CMV infection or CMV reactivation occurring at a median of 76 days (range, 7-234) following HSCT. CMV reactivation occurred in 28.2% (44/156) of CMV-seropositive transplant recipients at a median of 26 days posttransplant.Univariate and multivariate analyses revealed statistically significant relationships between CMV infection and grade III-IV acute graft-vs-host disease, seronegative donor/seropositive recipient combination, and unrelated/mismatched donors. The remaining demographic factors were not predictive of CMV infection.The seronegative donor/seropositive recipient combination for HSCT was associated with an incomplete response to antiviral therapy. Human leukocyte antigen identical donors were the best choice for patients undergoing allogeneic HSCT to reduce the incidence of CMV disease and mortality.
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Affiliation(s)
- Tang-Her Jaing
- Division of Hematology/Oncology, Department of Pediatrics, Chang Gung Children's Hospital
| | - Tsung-Yen Chang
- Division of Hematology/Oncology, Department of Pediatrics, Chang Gung Children's Hospital
| | - Shih-Hsiang Chen
- Division of Hematology/Oncology, Department of Pediatrics, Chang Gung Children's Hospital
| | | | | | - Ching-Fen Lee
- Division of Clinical Pharmacy, Department of Pharmacy, Chang Gung Memorial Hospital
| | - Chao-Ping Yang
- Division of Hematology/Oncology, Department of Pediatrics, Chang Gung Children's Hospital
| | - Pei-Kwei Tsay
- Department of Public Health and Center of Biostatistics, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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81
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O'Horo JC, Cawcutt KA. Critical Care Viral Infections. CRITICAL CARE NEPHROLOGY 2019. [PMCID: PMC7152280 DOI: 10.1016/b978-0-323-44942-7.00096-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Viral infections are a common cause of critical illness, particularly of the respiratory, gastrointestinal, and central nervous systems. Most are managed by supportive care alone. Early identification is critical to proper care to facilitate antimicrobial de-escalation. A small subset of viruses has directed treatment, and critical care providers should be knowledgeable about the diagnosis and treatment of influenza, herpes simplex meningoencephalitis, and viral hepatitis. Antivirals can reduce the morbidity and mortality associated with each of these illnesses.
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82
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Hodowanec AC, Pikis A, Komatsu TE, Sampson MR, Younis IR, O'Rear JJ, Singer ME. Treatment and Prevention of CMV Disease in Transplant Recipients: Current Knowledge and Future Perspectives. J Clin Pharmacol 2018; 59:784-798. [PMID: 30586161 DOI: 10.1002/jcph.1363] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 11/26/2018] [Indexed: 12/29/2022]
Abstract
This review summarizes the significant impact of cytomegalovirus (CMV) infection on solid organ and hematopoietic stem cell transplant recipients. A discussion of the various CMV prevention and treatment strategies is provided, including a detailed description of each of the available CMV antiviral drugs.
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Affiliation(s)
- Aimee C Hodowanec
- Center for Drug Evaluation and Research, Office of Antimicrobial Products, Division of Antiviral Products, Food and Drug Administration, Silver Spring, MD, USA
| | - Andreas Pikis
- Center for Drug Evaluation and Research, Office of Antimicrobial Products, Division of Antiviral Products, Food and Drug Administration, Silver Spring, MD, USA
| | - Takashi E Komatsu
- Center for Drug Evaluation and Research, Office of Antimicrobial Products, Division of Antiviral Products, Food and Drug Administration, Silver Spring, MD, USA
| | - Mario R Sampson
- Center for Drug Evaluation and Research, Office of Translational Sciences, Office of Clinical Pharmacology, Division of Clinical Pharmacology IV, Food and Drug Administration, Silver Spring, MD, USA
| | - Islam R Younis
- Center for Drug Evaluation and Research, Office of Translational Sciences, Office of Clinical Pharmacology, Division of Clinical Pharmacology IV, Food and Drug Administration, Silver Spring, MD, USA
| | - Julian J O'Rear
- Center for Drug Evaluation and Research, Office of Antimicrobial Products, Division of Antiviral Products, Food and Drug Administration, Silver Spring, MD, USA
| | - Mary E Singer
- Center for Drug Evaluation and Research, Office of Antimicrobial Products, Division of Antiviral Products, Food and Drug Administration, Silver Spring, MD, USA
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83
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Hung M, Huang DF, Chen WS, Lai CC, Chen MH, Liao HT, Tsai CY. The clinical features and mortality risk factors of cytomegalovirus infection in patients with systemic lupus erythematosus. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2018; 52:114-121. [PMID: 30598425 DOI: 10.1016/j.jmii.2018.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 11/27/2018] [Accepted: 12/07/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND The clinical features and outcomes of cytomegalovirus (CMV) diseases in patients with systemic lupus erythematosus (SLE) are unknown. We analyzed such data from a medical center in Taiwan. METHODS We retrospectively reviewed the medical records of patients with SLE who were diagnosed with CMV diseases between 2006 and 2016 in Taipei Veterans General Hospital Taiwan. Clinical and laboratory parameters and treatment outcomes were analyzed. RESULTS The study enrolled 56 eligible patients with CMV diseases and separated them into survival (n = 24) and mortality (n = 32) groups. All cases showed a significantly high incidence of pneumonitis (71.43%). The patients in the mortality group had a higher SLE disease activity index (SLEDAI)-2000 (p = 0.009), more cases of recent methylprednisolone pulse therapy (p = 0.013) and pancytopenia (p = 0.001), stronger evidence of CMV infection demonstrated by polymerase chain reaction (PCR) in blood (p < 0.001) and bronchoalveolar lavage (p = 0.021), and more concurrent infections (bacteremia p = 0.026; fungemia p < 0.001). CONCLUSIONS Recent pulse therapy, pancytopenia, and concurrent infections constituted risk factors for mortality in patients with SLE and CMV infection. Among mortality patients, PCR rather than serological tests (IgM antibodies) helped to arrive at an earlier diagnosis.
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Affiliation(s)
| | - Deh-Feng Huang
- Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wei-Sheng Chen
- Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University Faculty of Medicine, Taipei, Taiwan
| | - Chien-Chih Lai
- Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University Faculty of Medicine, Taipei, Taiwan
| | - Ming-Han Chen
- Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University Faculty of Medicine, Taipei, Taiwan
| | - Hsien-Tzung Liao
- Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chang-Youh Tsai
- Division of Allergy, Immunology, & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University Faculty of Medicine, Taipei, Taiwan.
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84
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Lima M, Matos AP, Ramalho M. Cytomegalovirus pseudotumor of the colon in an HIV patient. Radiol Case Rep 2018; 14:273-277. [PMID: 30510610 PMCID: PMC6262821 DOI: 10.1016/j.radcr.2018.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 12/31/2022] Open
Abstract
Cytomegalovirus (CMV) is the most common cause of severe opportunistic viral disease among patients with acquired immunodeficiency syndrome, and colitis is the most frequent manifestation of CMV infection. Nevertheless, the development of a colonic pseudotumor is a rare benign entity that can be easily misdiagnosed as a colonic neoplasm if the radiologist is not aware of this condition. We present a case of a 42-year-old male with a CMV pseudotumor of the colon. Imaging findings on computed tomography and magnetic resonance imaging are illustrated. Discussion of the differential diagnoses, based on clinical and imaging findings, is performed in order to propose the right diagnosis, which was histologically confirmed.
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Affiliation(s)
- Mariana Lima
- Department of Radiology, Centro Hospitalar de Lisboa Central, Hospital de Santo António dos Capuchos, Alameda Santo António Capuchos, 1169-050 Lisboa, Portugal
| | - António P Matos
- Department of Radiology, Hospital Garcia de Orta, EPE, Av. Torrado da Silva, Almada 2805-267, Portugal
| | - Miguel Ramalho
- Department of Radiology, Hospital Garcia de Orta, EPE, Av. Torrado da Silva, Almada 2805-267, Portugal
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85
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Teka YD, Demoz H, Bekele FB, Tulu KD. Magnitude and risk factors for cytomegalovirus infection among voluntary blood donors at National Blood Bank, Addis Ababa Ethiopia. ACTA ACUST UNITED AC 2018. [DOI: 10.1111/voxs.12476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Fanuel Belayneh Bekele
- College of Medicine and Health science School of Public Health Hawassa University Hawassa Ethiopia
| | - Kassu Desta Tulu
- School of Medical Laboratory Sciences Addis Ababa University Addis Ababa Ethiopia
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86
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Palma P, Costa A, Duro R, Neves N, Abreu C, Sarmento A. Mononeuritis multiplex: an uncommon neurological manifestation of cytomegalovirus reactivation in an HIV-infected patient. BMC Infect Dis 2018; 18:554. [PMID: 30419847 PMCID: PMC6233374 DOI: 10.1186/s12879-018-3501-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 11/02/2018] [Indexed: 03/11/2023] Open
Abstract
Background Cytomegalovirus (CMV) reactivation with neurological involvement in patients with acquired immunodeficiency syndrome (AIDS) is increasingly rare since the introduction of antiretroviral therapy (ART). Manifestations include encephalitis, myelitis, polyradiculopathy and, less commonly, mononeuritis multiplex (MNM). We report a case of disseminated CMV disease with gastrointestinal and peripheral and central nervous system involvement in a patient with AIDS, manifesting primarily as MNM. Case presentation A 31-year old woman with AIDS presented with a clinical picture of MNM. Electromyography confirmed the clinical findings. CMV DNA was detected in cerebrospinal fluid (CSF) and blood. Gastrointestinal involvement was histologically documented. HIV RNA was also detected in CSF and brain MRI was consistent with HIV encephalopathy. A diagnosis of disseminated CMV disease (with esophagitis, colitis, encephalitis and MNM) and HIV encephalopathy was made. Treatment consisted of ganciclovir and foscarnet, followed by maintenance therapy with valganciclovir. Evolution was favorable and valganciclovir was stopped after sustained immune recovery following ART initiation. Conclusion We discuss the diagnostic approach to CMV neurological disease, with a focus on MNM and CMV encephalitis. Combination therapy with ganciclovir and foscarnet should be considered for all forms of neurological involvement, although available data are scarce. Since there is significant overlap between CMV encephalitis and HIV encephalopathy, ART drugs with higher CSF penetration may have to be considered. ART and immune recovery are essential to improve outcomes.
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Affiliation(s)
- Pedro Palma
- Infectious Diseases Department, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal. .,Instituto de Inovação e Investigação em Saúde (I3S). Grupo de I&D em Nefrologia e Doenças Infeciosas, Instituto Nacional de Engenharia Biomédica (INEB), Porto, Portugal.
| | - Andreia Costa
- Neurology Department, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal
| | - Raquel Duro
- Infectious Diseases Department, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal.,Instituto de Inovação e Investigação em Saúde (I3S). Grupo de I&D em Nefrologia e Doenças Infeciosas, Instituto Nacional de Engenharia Biomédica (INEB), Porto, Portugal
| | - Nélia Neves
- Infectious Diseases Department, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal.,Instituto de Inovação e Investigação em Saúde (I3S). Grupo de I&D em Nefrologia e Doenças Infeciosas, Instituto Nacional de Engenharia Biomédica (INEB), Porto, Portugal
| | - Cândida Abreu
- Infectious Diseases Department, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal.,Instituto de Inovação e Investigação em Saúde (I3S). Grupo de I&D em Nefrologia e Doenças Infeciosas, Instituto Nacional de Engenharia Biomédica (INEB), Porto, Portugal
| | - António Sarmento
- Infectious Diseases Department, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal.,Instituto de Inovação e Investigação em Saúde (I3S). Grupo de I&D em Nefrologia e Doenças Infeciosas, Instituto Nacional de Engenharia Biomédica (INEB), Porto, Portugal
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87
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Harms RZ, Lorenzo-Arteaga KM, Ostlund KR, Smith VB, Smith LM, Gottlieb P, Sarvetnick N. Abnormal T Cell Frequencies, Including Cytomegalovirus-Associated Expansions, Distinguish Seroconverted Subjects at Risk for Type 1 Diabetes. Front Immunol 2018; 9:2332. [PMID: 30405601 PMCID: PMC6204396 DOI: 10.3389/fimmu.2018.02332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/19/2018] [Indexed: 12/12/2022] Open
Abstract
We analyzed T cell subsets from cryopreserved PBMC obtained from the TrialNet Pathway to Prevention archives. We compared subjects who had previously seroconverted for one or more autoantibodies with non-seroconverted, autoantibody negative individuals. We observed a reduced frequency of MAIT cells among seroconverted subjects. Seroconverted subjects also possessed decreased frequencies of CCR4-expressing CD4 T cells, including a regulatory-like subset. Interestingly, we found an elevation of CD57+, CD28–, CD127–, CD27– CD8 T cells (SLEC) among seroconverted subjects that was most pronounced among those that progressed to disease. The frequency of these SLEC was strongly correlated with CMV IgG abundance among seroconverted subjects, associated with IA-2 levels, and most elevated among CMV+ seroconverted subjects who progressed to disease. Combined, our data indicate discrete, yet profound T cell alterations are associated with islet autoimmunity among at-risk subjects.
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Affiliation(s)
- Robert Z Harms
- Surgery-Transplant, University of Nebraska Medical Center, Omaha, NE, United States
| | | | - Katie R Ostlund
- Surgery-Transplant, University of Nebraska Medical Center, Omaha, NE, United States
| | - Victoria B Smith
- Office of the Vice Chancellor of Research, University of Nebraska Medical Center, Omaha, NE, United States
| | - Lynette M Smith
- Biostatistics, University of Nebraska Medical Center, Omaha, NE, United States
| | - Peter Gottlieb
- Barbara Davis Center for Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Nora Sarvetnick
- Surgery-Transplant, University of Nebraska Medical Center, Omaha, NE, United States.,Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, United States
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88
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Gonçalves C, Cipriano A, Videira Santos F, Abreu M, Méndez J, Sarmento E Castro R. Cytomegalovirus acute infection with pulmonary involvement in an immunocompetent patient. IDCases 2018; 14:e00445. [PMID: 30191130 PMCID: PMC6125764 DOI: 10.1016/j.idcr.2018.e00445] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 08/19/2018] [Accepted: 08/19/2018] [Indexed: 11/24/2022] Open
Abstract
Introduction Cytomegalovirus (CMV) infection in healthy adults is usually asymptomatic or causes a mild mononucleosis syndrome, while severe infections are rare in immunocompetent patients and poorly documented. When described, gastrointestinal tract and the central nervous systems are the most frequent sites of severe CMV infection. Lung disease can occur, but it’s rare. Clinical case A 29 years old man presenting with a 2-weeks history of fever, headache, malaise, dry non-productive cough and thoracic pleuritic pain, without improvement after one-week therapy with levofloxacin. Blood exams showed lymphocytosis of almost 50%, nine percent of atypical lymphocytes and elevated transaminases. Thoracic CT-scan showed bilateral infiltrate with internal air bronchogram. Blood serology showed positivity for CMV IgG and IgM, with low CMV IgG avidity. Serum and bronchoalveolar detection of CMV by polymerase chain reaction (PCR) technique was also positive. Cultures were all negative. The patient became increasingly hypoxemic and the liver transaminases worsening, the reason for which ganciclovir was started. He made a full recovery and was discharged seven days later with oral valganciclovir, completing a 3 weeks antiviral course at home. Discussion CMV pneumonia is a rare condition, however it’s one of the three most common cause of severe viral community acquired pneumonia (CAP), along with influenza and adenovirus. CMV pneumonia should be considered in patients with atypical lymphocytes and mildly elevated serum transaminases. Conclusion In immunocompetent hosts, even with severe CMV-CAP, the prognosis is good. However, antiviral treatment should be considered in the rare occasion of severe CMV infection. Nevertheless, more studies are needed to clarify the clinical benefit of antiviral treatment.
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Affiliation(s)
- Celina Gonçalves
- Infectious Disease Department, Centro Hospitalar do Porto, Portugal
| | - Ana Cipriano
- Infectious Disease Department, Centro Hospitalar do Porto, Portugal
| | | | - Miguel Abreu
- Infectious Disease Department, Centro Hospitalar do Porto, Portugal
| | - Josefina Méndez
- Infectious Disease Department, Centro Hospitalar do Porto, Portugal
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Cytomegalovirus infection in immunocompetent adults: Is observation still the best strategy? IDCases 2018; 14:e00442. [PMID: 30202727 PMCID: PMC6129681 DOI: 10.1016/j.idcr.2018.e00442] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/19/2018] [Accepted: 08/19/2018] [Indexed: 11/20/2022] Open
Abstract
Cytomegalovirus (CMV) infection in immunocompetent patients generally resolves with few sequelae. However, it can cause severe and relapsing symptoms that can last for several weeks. Due to the self-limiting nature of CMV disease in immunocompetent individuals, criteria for specific antiviral therapy in this cohort are not well established. Additionally the adverse effect profile of currently available anti-CMV therapy limits its use in specific patient populations .We describe 3 immunocompetent adults who developed symptomatic CMV infection and were ill for several weeks. All patients had positive CMV viral assays and ultimately received anti-CMV therapy with significant improvement in symptoms within a few days of starting therapy. Choosing appropriate candidates for anti-CMV therapy, among mmunocompetent individuals, requires further research.
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90
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Abstract
After being admitted to hospital with atypical chest pain, a 61-year-old woman was noted to become lethargic and confused. She also developed global dysphasia. MRI was suggestive of encephalitis, and lumbar puncture was positive for cytomegalovirus (CMV) PCR. The patient was treated with intravenous ganciclovir and subsequent oral valganciclovir and she gradually made a reasonable recovery. While this infection is usually closely linked to immunosuppression, the patient was found to be HIV negative, and was not on any immunosuppressive therapy. Going through the patient's medical history revealed two possible risk factors which might have led to the development of CMV encephalitis: immunosuppression secondary to underlying poorly controlled diabetes mellitus; and previous admission to the intensive care unit which might have lead to CMV reactivation.
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Affiliation(s)
- Sarah Micallef
- Department of Medicine, Mater Dei Hospital, Msida, Malta
| | - Ruth Galea
- Department of Neurosciences, Mater Dei Hospital, Msida, Malta
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91
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A rapid magnetic particle-based enzyme immunoassay for human cytomegalovirus glycoprotein B quantification. J Pharm Biomed Anal 2018; 156:372-378. [DOI: 10.1016/j.jpba.2018.04.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 11/23/2022]
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92
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Detection of Cytomegalovirus in Liver Tissue by Polymerase Chain Reaction in Infants With Neonatal Cholestasis. Pediatr Infect Dis J 2018; 37:632-636. [PMID: 29389827 DOI: 10.1097/inf.0000000000001889] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AIM Cytomegalovirus (CMV) is associated with neonatal cholestasis (NC). Diagnosis of CMV infection is most often based on either positive blood CMV IgM or CMV blood polymerase chain reaction (PCR). Isolation of CMV in liver tissues in patients with NC has rarely been reported. This study was undertaken to see if CMV is present in liver tissues of patients with NC and evaluate the correlation between positive CMV PCR in liver tissue with the serology and blood PCR. METHODS This study was conducted in 31 infants with NC from June 2015 to December 2016. All patients underwent blood CMV IgM, blood CMV PCR and liver CMV PCR. Prevalence of CMV in NC based on positive liver CMV PCR was calculated. Sensitivity and specificity of the serologic markers and blood CMV PCR to identify CMV infection in the liver was determined. RESULTS CMV IgM was positive in 13 (42%) patients, CMV IgG was positive in 26 (84%) patients and blood CMV PCR was positive in 23 (74%) patients. Liver CMV PCR was positive in 16 (52%) patients. Fifteen (48%) patients had biliary atresia (BA), 10 (32%) patients had neonatal hepatitis, 5 (16%) had paucity of bile ducts and 1 (3%) had ascending cholangitis. Of the 16 patients with positive liver CMV PCR, 8 (50%) had BA, 4 (25%) had neonatal hepatitis, 3 (19%) had paucity of bile ducts and 1 (6%) had ascending cholangitis. Sensitivity of blood CMV IgM in relation to liver CMV PCR was 69% and specificity was 61%. Sensitivity of blood CMV PCR was 61% and specificity was 71% when compared with liver CMV PCR. CONCLUSION CMV is present in the liver tissues of more than half the patients with NC. Serology or blood CMV PCR is apparently not an accurate marker of CMV in the liver tissue. Also, CMV infection in children seems to be associated equally with BA or non-BA neonatal hepatitis.
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93
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Direct Detection of T- and B-Memory Lymphocytes by ImmunoSpot® Assays Reveals HCMV Exposure that Serum Antibodies Fail to Identify. Cells 2018; 7:cells7050045. [PMID: 29783767 PMCID: PMC5981269 DOI: 10.3390/cells7050045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/13/2018] [Accepted: 05/15/2018] [Indexed: 01/04/2023] Open
Abstract
It is essential to identify donors who have not been infected with human cytomegalovirus (HCMV) in order to avoid transmission of HCMV to recipients of blood transfusions or organ transplants. In the present study, we tested the reliability of seronegativity as an indicator for the lack of HCMV exposure in healthy human blood donors. Eighty-two HCMV seronegative individuals were identified, and their peripheral blood mononuclear cells (PBMC) were tested in ImmunoSpot® assays for the presence of HCMV-specific T- and B-memory lymphocytes. Eighty-two percent (67 of 82) of these HCMV seronegative individuals featured at least one memory cell that was lineage specific for HCMV, with the majority of these subjects possessing CD4+ and CD8+ T cells, as well as B cells, providing three independent lines of evidence for having developed immunity to HCMV. Only 15 of these 82 donors (18%) showed neither T- nor B-cell memory to HCMV, consistent with immunological naïveté to the virus. The data suggest that measurements of serum antibodies frequently fail to reveal HCMV exposure in humans, which may be better identified by direct detection of HCMV-specific memory lymphocytes.
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94
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Fever of unknown origin (FUO): CMV infectious mononucleosis or lymphoma? Eur J Clin Microbiol Infect Dis 2018; 37:1373-1376. [PMID: 29679253 DOI: 10.1007/s10096-018-3262-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/11/2018] [Indexed: 10/17/2022]
Abstract
Fever of unknown origin (FUO) refers to fevers of > 101 °F that persist for > 3 weeks and remain undiagnosed after a focused inpatient or outpatient workup. FUO may be due to infectious, malignant/neoplastic, rheumatic/inflammatory, or miscellaneous disorders. The FUO category determines the focus of the diagnostic workup. In the case presented of an FUO in a young woman, there were clinical findings of both CMV infectious mononucleosis or a lymphoma, e.g., highly elevated ESR, elevated ferritin levels, and elevated ACE level, β-2 microglobulins. The indium scan showed intense splenic uptake. Lymph node biopsy, PET scan, and flow cytometry were negative for lymphoma. CMV infectious mononucleosis was the diagnosis, and she made a slow recovery.
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95
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Sam SS, Ingersoll J, Racsa LD, Caliendo AM, Racsa PN, Igwe D, Abdul-Ali D, Josephson C, Kraft CS. Long-term stability of CMV DNA in human breast milk. J Clin Virol 2018; 102:39-41. [PMID: 29486386 DOI: 10.1016/j.jcv.2018.02.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/16/2018] [Accepted: 02/19/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND Human cytomegalovirus (CMV) is the leading cause of intrauterine and perinatal viral infection. The most common route of CMV transmission in newborns is through breastmilk and this can lead to infant morbidity and mortality. Breast milk that has been frozen for an extended period may need to be tested for CMV DNA to determine the source of infection. It has been a challenge for clinical laboratories to ensure the stability of CMV DNA in frozen breast milk for accurate viral load measurement. OBJECTIVES To evaluate the stability of CMV DNA in breast milk by testing quantitative viral loads over a 28-day period for breast milk stored at 4 °C and a 90-day period for breast milk stored at -20 °C. STUDY DESIGN Baseline viral loads were determined on day 0 and the samples stored at 4 °C underwent extraction and amplification at four time points, up to 28 days. The samples stored at -20 °C underwent extraction and amplification at five time points up to 90 days. Log10 values were calculated and t-test, Pearson's coefficient, and concordance correlation coefficient were calculated. RESULTS There was no statistically significant difference between the time points by t-test, and correlation coefficients showed greater than 90% concordance for days 0 and 28 as well as days 0 and 90 at both storage temperatures tested. CONCLUSIONS The concentration of CMV DNA in breast milk was stable for 28 days at 4 °C and 90 days at -20 °C as the concentrations did not differ significantly from the baseline viral loads.
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Affiliation(s)
- Soya S Sam
- Division of Infectious Diseases, The Miriam Hospital, Providence, RI, United States.
| | - Jessica Ingersoll
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Lori D Racsa
- Peoria-Tazewell Pathology Group, Peoria, IL, United States
| | - Angela M Caliendo
- Department of Medicine, Alpert Medical School of Brown University, Providence, RI, United States
| | | | - Doris Igwe
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Deborah Abdul-Ali
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Cassandra Josephson
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Colleen S Kraft
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, United States
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96
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Goycochea-Valdivia WA, Baquero-Artigao F, Del Rosal T, Frick MA, Rojo P, Echeverría MJ, Noguera-Julian A, Bringué X, Saavedra-Lozano J, Vives-Oñós I, Moliner E, Cilleruelo MJ, Cuadrado I, Colino E, Castells L, Tagarro A, Vilas J, Soler-Palacin P, Blázquez-Gamero D. Cytomegalovirus DNA Detection by Polymerase Chain Reaction in Cerebrospinal Fluid of Infants With Congenital Infection: Associations With Clinical Evaluation at Birth and Implications for Follow-up. Clin Infect Dis 2018; 64:1335-1342. [PMID: 28158709 DOI: 10.1093/cid/cix105] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 01/31/2017] [Indexed: 12/20/2022] Open
Abstract
Background DNA detection of human cytomegalovirus (hCMV) in cerebrospinal fluid (CSF) by polymerase chain reaction (PCR) is a marker of central nervous system (CNS) involvement in congenital hCMV infection (cCMV), but its prognostic value is unknown. Methods A multicenter, retrospective study was performed using the Spanish Congenital Cytomegalovirus Infection Database (REDICCMV; http://www.cmvcongenito.es). Newborns with cCMV and a lumbar puncture performed were included and classified according to their hCMV-PCR in CSF result (positive/negative). Clinical characteristics, neuroimaging abnormalities, plasma viral load, and audiological and neurological outcomes of both groups were compared. Results A total of 136 neonates were included in the study: 21 (15.4%) with positive CSF hCMV-PCR and 115 (84.6%) with negative results. Seventeen patients (81%) in the positive group were symptomatic at birth compared with 52.2% of infants in the negative group (odds ratio [OR], 3.86; 95% confidence interval [CI], 1.28-14.1; P = .01). Only 4 asymptomatic newborns (6.8%) had a positive CSF hCMV-PCR. There were no differences between groups regarding the rate of microcephaly, neuroimaging abnormalities, neurological sequelae at 6 months of age, or plasma viral load. Sensorineural hearing loss (SNHL) at birth was associated with a positive CSF hCMV-PCR result (OR, 3.49; 95% CI, 1.08-11.27; P = .04), although no association was found at 6 months of age. Conclusions A positive hCMV-PCR result in CSF is associated with symptomatic cCMV and SNHL at birth. However, no differences in neuroimaging studies, plasma viral load, or outcomes at 6 months were found. These results suggest that hCMV-PCR in CSF may not be a useful prognostic marker in cCMV.
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Affiliation(s)
| | | | - Teresa Del Rosal
- Pediatric Infectious Diseases Unit, Hospital Universitario La Paz, Madrid
| | - Marie-Antoinette Frick
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d Hebrón, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona
| | - Pablo Rojo
- Pediatric Infectious Diseases Unit, Hospital Universitario 12 de Octubre, Universidad Complutense, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid
| | | | - Antoni Noguera-Julian
- Malalties infeccioses i resposta inflamatòria sistèmica en pediatria. Unitat d'Infeccions, Servei de Pediatria. Institut de Recerca Pediàtrica Hospital Sant Joan de Déu, Barcelona.,Departament de Pediatria, Universitat de Barcelona.,CIBER de Epidemiología y Salud Pública (Ciberesp, Spain) Barcelona
| | - Xavier Bringué
- Department of Pediatrics and Neonatal Unit, Hospital Universitario Arnau de Vilanova, Lleida
| | | | - Isabel Vives-Oñós
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d Hebrón, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona.,Department of Pediatrics, Hospital Quirónsalud Barcelona
| | - Elisenda Moliner
- Pediatric Infectious Diseases Unit, Hospital de la Santa Creu y Sant Pau, Barcelona
| | | | | | - Elena Colino
- Pediatric Infectious Diseases Unit, Hospital Las Palmas de Gran Canaria
| | - Laura Castells
- Department of Pediatrics and Neonatology Unit, Hospital Universitario General de Cataluña, Barcelona
| | - Alfredo Tagarro
- Department of Pediatrics, Hospital Universitario Infanta Sofía, Universidad Europea de Madrid; and
| | - Javier Vilas
- Department of Pediatric Infectious Diseases, Complejo Hospitalario de Pontevedra, Spain
| | - Pere Soler-Palacin
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d Hebrón, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona
| | - Daniel Blázquez-Gamero
- Pediatric Infectious Diseases Unit, Hospital Universitario 12 de Octubre, Universidad Complutense, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid
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97
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Alyazidi R, Murthy S, Slyker JA, Gantt S. The Potential Harm of Cytomegalovirus Infection in Immunocompetent Critically Ill Children. Front Pediatr 2018; 6:96. [PMID: 29692984 PMCID: PMC5902572 DOI: 10.3389/fped.2018.00096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/26/2018] [Indexed: 12/17/2022] Open
Abstract
Cytomegalovirus (CMV) is a ubiquitous infection that causes disease in congenitally infected children and immunocompromised patients. Although nearly all CMV infections remain latent and asymptomatic in immunologically normal individuals, numerous studies have found that systemic viral reactivation is common in immunocompetent critically ill adults, as measured by detection of CMV in the blood (viremia). Furthermore, CMV viremia is strongly correlated with adverse outcomes in the adult intensive care unit (ICU), including prolonged stay, duration of mechanical ventilation, and death. Increasing evidence, including from a randomized clinical trial of antiviral treatment, suggests that these effects of CMV may be causal. Therefore, interventions targeting CMV might improve outcomes in adult ICU patients. CMV may have an even greater impact on critically ill children, particularly in low and middle income countries (LMIC), where CMV is regularly acquired in early childhood, and where inpatient morbidity and mortality are inordinately high. However, to date, there are few data regarding the clinical relevance of CMV infection or viremia in immunocompetent critically ill children. We propose that CMV infection should be studied as a potential modifiable cause of disease in critically ill children, and that these studies be conducted in LMIC. Below, we briefly review the role of CMV in immunologically normal critically ill adults and children, outline age-dependent differences in CMV infection that may influence ICU outcomes, and describe an agenda for future research.
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Affiliation(s)
- Raidan Alyazidi
- University of British Columbia and BC Children's Hospital, Vancouver, BC, Canada.,Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Srinivas Murthy
- University of British Columbia and BC Children's Hospital, Vancouver, BC, Canada
| | | | - Soren Gantt
- University of British Columbia and BC Children's Hospital, Vancouver, BC, Canada
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98
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Nolan N, Halai UA, Regunath H, Smith LP, Rojas-Moreno C, Salzer W. Primary cytomegalovirus infection in immunocompetent adults in the United States - A case series. IDCases 2017; 10:123-126. [PMID: 29159070 PMCID: PMC5684088 DOI: 10.1016/j.idcr.2017.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 10/24/2017] [Indexed: 11/28/2022] Open
Abstract
Primary Cytomegalovirus (CMV) infection is often not suspected as a cause of fever of unknown origin (FUO) in immune-competent adults. We present a case-series of symptomatic primary CMV infection in immunocompetent adults presenting as fever of unknown origin (FUO). All patients with CMV serology tested between November 2008 and June 2016 underwent chart review. Cases were defined as those between 18 and 65 years of age with documented fever and elevated serum anti-CMV IgM. Exclusion criteria were organ specific CMV disease, positive serum anti-EBV IgM, or presence of any immunocompromising condition. Sixteen patients (69% male, mean age 42.2 ± 11.7 years) met criteria. Mean duration of illness was 4.6 ± 3.3 weeks. Common symptoms other than fever included fatigue (94%), night sweats (81%), malaise (75%), myalgias (63%), and headache (56%). Eleven patients (68.8%) had contact with young children; six (35.3%) patients had children in daycare. Twelve (75%) patients had extensive testing and multiple visits or hospitalizations prior to consulting with an infectious disease specialist. Peripheral smear was done in twelve (75%) patients and all had atypical lymphocytes. Five patients (31.3%) had a leukocytosis. Peak serum transaminases were: AST 115.25 ± 50.5 IU/L and ALT 168.38 ± 92.0 IU/L. One patient had splenic infarcts. In addition, two cases of hydrops fetalis were attributed to primary CMV infection. In summary, primary CMV infection can present as FUO in immunocompetent adults. Contact with young children in daycare may be a risk factor. Heightened clinical suspicion will promote earlier diagnosis and avoid unnecessary testing.
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Affiliation(s)
- Nathanial Nolan
- Department of Medicine, University of Missouri, Columbia, MO 65212, United States
| | - Umme-Aiman Halai
- Department of Medicine, University of Missouri, Columbia, MO 65212, United States
| | - Hariharan Regunath
- Department of Medicine - Division of Pulmonary, Critical Care and Environmental Medicine, and Division of Infectious Diseases, University of Missouri, Columbia, MO 65212, United States
| | - LPatrick Smith
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO 65212, United States
| | - Christian Rojas-Moreno
- Department of Medicine - Division of Infection Diseases, University of Missouri, Columbia, MO 65212, United States
| | - William Salzer
- Department of Medicine - Division of Infection Diseases, University of Missouri, Columbia, MO 65212, United States
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99
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Dimech W, Cabuang LM, Grunert HP, Lindig V, James V, Senechal B, Vincini GA, Zeichhardt H. Results of cytomegalovirus DNA viral loads expressed in copies per millilitre and international units per millilitre are equivalent. J Virol Methods 2017; 252:15-23. [PMID: 29126838 DOI: 10.1016/j.jviromet.2017.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/29/2017] [Accepted: 11/01/2017] [Indexed: 01/05/2023]
Abstract
Quantification of Cytomegalovirus (CMV) DNA is required for the initiation and monitoring of anti-viral treatment and the detection of viral resistance. However, due to the lack of standardisation of CMV DNA nucleic acid tests, it is difficult to set universal thresholds. In 2010, the 1st WHO International Standard for Human Cytomegalovirus for Nucleic Acid Amplification Techniques was released. Since then CMV DNA viral load assays have been calibrated using this standard. Three external quality assessment (EQA) providers sent the same five samples to their participants and analysed the results to determine the equivalence of reporting CMV DNA results in international units per millilitre (IU/mL), and compared the difference in results reported in IU/mL with those reported in copies per millilitre (c/mL), and to determine the rate of adoption of IU/mL. About 78% of participants continue to report results in c/mL even though six of the 12 commercial assays are calibrated against the standard. The range of the results reported in IU/mL was less than those reported in c/mL indicating that the adoption of the WHO standard successfully improved the reporting of the CMV viral load. The variation in individual sample results reported by different assays, irrespective of whether in IU/mL or c/mL, is still great and therefore more standardisation of the assays is needed to allow the setting of treatment and monitoring thresholds. This study can act as a bench mark to determine rate of future adoption if reporting CMV DNA viral load results in IU/mL.
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Affiliation(s)
- Wayne Dimech
- National Serology Reference Laboratory (NRL), Melbourne, Australia.
| | - Liza M Cabuang
- National Serology Reference Laboratory (NRL), Melbourne, Australia
| | | | - Vanessa Lindig
- Institut fuer Qualitaetssicherung in der Virusdiagnostik - IQVD der GBD mbH, Berlin, Germany
| | - Vivienne James
- UK National External Quality Assessment Service (UKNEQAS) for Microbiology, Public Health England, London, United Kingdom
| | - Brigitte Senechal
- UK National External Quality Assessment Service (UKNEQAS) for Microbiology, Public Health England, London, United Kingdom
| | | | - Heinz Zeichhardt
- Institut fuer Qualitaetssicherung in der Virusdiagnostik - IQVD der GBD mbH, Berlin, Germany; INSTAND Gesellschaft zur Foerderung der Qualitaetssicherung in medizinischen Laboratorien e.V., Duesseldorf, Germany; Charité-Universitaetsmedizin, Institut fuer Virologie, Berlin, Germany
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100
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Chiereghin A, Pavia C, Gabrielli L, Piccirilli G, Squarzoni D, Turello G, Gibertoni D, Simonazzi G, Capretti MG, Lanari M, Lazzarotto T. Clinical evaluation of the new Roche platform of serological and molecular cytomegalovirus-specific assays in the diagnosis and prognosis of congenital cytomegalovirus infection. J Virol Methods 2017; 248:250-254. [DOI: 10.1016/j.jviromet.2017.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/03/2017] [Accepted: 08/06/2017] [Indexed: 10/19/2022]
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