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1.
New Microbiol ; 47(1): 52-59, 2024 May.
Article in English | MEDLINE | ID: mdl-38700884

ABSTRACT

Monitoring Epstein-Barr virus (EBV) and cytomegalovirus (CMV) infection after transplantation is recommended to enable preemptive therapy. However, the most suitable sample type remains unclear. Patients who underwent hematopoietic stem cell or liver transplantation were included in this study. Viral loads in sequential whole-blood and plasma samples were retrospectively analyzed. EBV DNA was detected more frequently in whole blood (55%) than in plasma (18%). The detection rate of CMV DNA was similar between the two sample types. The correlation of viral loads between the two sample types were 0.515 and 0.688 for EBV and CMV, respectively. Among paired samples in which EBV DNA was detected in whole blood, the plasma EBV detection rate was significantly higher in patients who underwent hematopoietic stem cell transplantation than in those who underwent liver transplantation. The viral DNA load in whole blood and plasma showed similar trends. The EBV detection rate was higher in whole blood, and a high correlation was observed between CMV DNA loads and whole blood and plasma. These results indicate that whole blood is more sensitive for monitoring both EBV and CMV, whereas plasma is a potential alternative sample for monitoring CMV.


Subject(s)
Cytomegalovirus Infections , Cytomegalovirus , Epstein-Barr Virus Infections , Herpesvirus 4, Human , Viral Load , Humans , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , Cytomegalovirus Infections/virology , Cytomegalovirus Infections/blood , Cytomegalovirus Infections/diagnosis , Herpesvirus 4, Human/genetics , Herpesvirus 4, Human/isolation & purification , Epstein-Barr Virus Infections/virology , Epstein-Barr Virus Infections/blood , Epstein-Barr Virus Infections/diagnosis , Male , Female , Middle Aged , Adult , Retrospective Studies , DNA, Viral/blood , Young Adult , Hematopoietic Stem Cell Transplantation , Aged , Plasma/virology , Liver Transplantation , Adolescent
2.
Ugeskr Laeger ; 186(15)2024 Apr 08.
Article in Danish | MEDLINE | ID: mdl-38708697

ABSTRACT

Cytomegalovirus infection (CMV) can be fatal for organ transplant recipients as shown in this case report. Maribavir is a recently approved drug, which can be used for therapy-refractory CMV infection or when other treatment options cannot be used. The patient in this case report was a CMV-infected liver transplant recipient, who developed a severe erythema and high CMV DNA during valganciclovir therapy. Toxic epidermal necrolysis was suspected. The patient was treated with maribavir, and both CMV DNA and the skin normalised. This case illustrates that maribavir is a useful alternative to other antiviral drugs for CMV infection.


Subject(s)
Antiviral Agents , Cytomegalovirus Infections , Dichlororibofuranosylbenzimidazole/analogs & derivatives , Liver Transplantation , Ribonucleosides , Humans , Cytomegalovirus Infections/drug therapy , Liver Transplantation/adverse effects , Antiviral Agents/therapeutic use , Ribonucleosides/therapeutic use , Ribonucleosides/administration & dosage , Benzimidazoles/therapeutic use , Benzimidazoles/adverse effects , Male , Middle Aged , Cytomegalovirus/isolation & purification , Cytomegalovirus/drug effects
3.
Viruses ; 16(5)2024 05 13.
Article in English | MEDLINE | ID: mdl-38793653

ABSTRACT

BACKGROUND: Several screening strategies for identifying congenital CMV (cCMV) have been proposed; however, the optimal solution has yet to be determined. We aimed to determine the prevalence of cCMV by universal screening with saliva pool testing and to identify the clinical variables associated with a higher risk of cCMV to optimize an expanded screening strategy. METHODS: We carried out a prospective universal cCMV screening (September/2022 to August/2023) of 2186 newborns, analyzing saliva samples in pools of five (Alethia-LAMP-CMV®) and then performed confirmatory urine CMV RT-PCR. Infants with risk factors (small for gestational age, failed hearing screening, HIV-exposed, born to immunosuppressed mothers, or <1000 g birth weight) underwent expanded screening. Multivariate analyses were used to assess the association with maternal/neonatal variables. RESULTS: We identified 10 infants with cCMV (prevalence: 0.46%, 95% CI 0.22-0.84), with significantly higher rates (2.1%, 95% CI 0.58-5.3) in the high-risk group (p = 0.04). False positives occurred in 0.09% of cases. No significant differences in maternal/neonatal characteristics were observed, except for a higher prevalence among infants born to non-Chilean mothers (p = 0.034), notably those born to Haitian mothers (1.5%, 95% CI 0.31-4.34), who had higher odds of cCMV (OR 6.82, 95% CI 1.23-37.9, p = 0.04). Incorporating maternal nationality improved predictive accuracy (AUC: 0.65 to 0.83). CONCLUSIONS: For low-prevalence diseases such as cCMV, universal screening with pool testing in saliva represents an optimal and cost-effective approach to enhance diagnosis in asymptomatic patients. An expanded screening strategy considering maternal nationality could be beneficial in resource-limited settings.


Subject(s)
Cytomegalovirus Infections , Cytomegalovirus , Developing Countries , Neonatal Screening , Saliva , Humans , Saliva/virology , Cytomegalovirus Infections/diagnosis , Cytomegalovirus Infections/congenital , Cytomegalovirus Infections/epidemiology , Cytomegalovirus Infections/virology , Infant, Newborn , Female , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , Prospective Studies , Neonatal Screening/methods , Male , Molecular Diagnostic Techniques/methods , Prevalence , Mass Screening/methods , Sensitivity and Specificity , Pregnancy , Risk Factors
4.
Front Public Health ; 12: 1359663, 2024.
Article in English | MEDLINE | ID: mdl-38813410

ABSTRACT

Cytomegalovirus (CMV) is the most common cause of congenital infection internationally, occurring in 0.67% of births, and increasingly recognised as a major public health burden due to the potential for long-term neurodevelopmental and hearing impairment. This burden includes estimates of 10% of childhood cerebral palsy and up to 25% of childhood deafness. In Sub-Saharan Africa, where CMV-seroprevalence is almost ubiquitous, prevalence of congenital CMV (cCMV) is higher than the global average, and yet there is a dearth of research and initiatives to improve recognition, diagnosis and treatment. This narrative review outlines the epidemiology and clinical presentation of cCMV, discusses issues of case identification and treatment in Sub-Saharan Africa, and recommends a framework of strategies to address these challenges. Considering the significant burden of cCMV disease in this setting, it is undoubtably time we embark upon improving diagnosis and care for these infants.


Subject(s)
Cytomegalovirus Infections , Cytomegalovirus , Humans , Cytomegalovirus Infections/congenital , Cytomegalovirus Infections/diagnosis , Cytomegalovirus Infections/epidemiology , Africa South of the Sahara/epidemiology , Cytomegalovirus/isolation & purification , Infant, Newborn , Prevalence , Female , Pregnancy
5.
Medicina (Kaunas) ; 60(5)2024 Apr 25.
Article in English | MEDLINE | ID: mdl-38792882

ABSTRACT

Background and Objectives: The investigation of oncogenic viruses and their potential association with breast cancer (BC) remains an intriguing area of study. The current work aims to assess evidence of three specific viruses, human papillomavirus (HPV), cytomegalovirus (CMV), and Epstein-Barr virus (EBV) in BC samples and to explore their relationship with relevant clinicopathological variables. Materials and Methods: The analysis involved BC samples from 110 Jordanian female patients diagnosed with BC and breast tissue samples from 30 control patients with no evidence of breast malignancy, investigated using real-time PCR. The findings were then correlated with various clinico-pathological characteristics of BC. Results: HPV was detected in 27 (24.5%), CMV in 15 (13.6%), and EBV in 18 (16.4%) BC patients. None of the control samples was positive for HPV or CMV while EBV was detected in only one (3.3%) sample. While (HPV/EBV), (HPV/CMV), and (EBV/CMV) co-infections were reported in 1.8%, 2.7%, and 5.5%, respectively, coinfection with the three viruses (HPV/CMV/EBV) was not reported in our cohort. A statistically significant association was observed between HPV status and age (p = 0.047), and between clinical stage and CMV infection (p = 0.015). Conclusions: Our findings indicate the presence or co-presence of HPV, CMV, and EBV in the BC subpopulation, suggesting a potential role in its development and/or progression. Further investigation is required to elucidate the underlying mechanisms that account for the exact role of oncoviruses in breast carcinogenesis.


Subject(s)
Breast Neoplasms , Cytomegalovirus , Epstein-Barr Virus Infections , Herpesvirus 4, Human , Humans , Female , Breast Neoplasms/virology , Jordan/epidemiology , Middle Aged , Herpesvirus 4, Human/isolation & purification , Cytomegalovirus/isolation & purification , Adult , Aged , Epstein-Barr Virus Infections/complications , Epstein-Barr Virus Infections/epidemiology , Cytomegalovirus Infections/epidemiology , Cytomegalovirus Infections/complications , Cytomegalovirus Infections/virology , Papillomaviridae/isolation & purification , Papillomavirus Infections/epidemiology , Papillomavirus Infections/complications , Papillomavirus Infections/virology , Real-Time Polymerase Chain Reaction , Human Papillomavirus Viruses
6.
Viruses ; 16(5)2024 04 26.
Article in English | MEDLINE | ID: mdl-38793573

ABSTRACT

Cytomegalovirus (CMV) colitis is a critical condition associated with severe complications in ulcerative colitis (UC). This study aimed to investigate the diagnostic value of the presence of CMV DNA in intestinal mucosa tissue and blood samples in patients with active UC. This study included 81 patients with exacerbated symptoms of UC. Patient data were obtained from the Hospital Information Management System. CMV DNA in colorectal tissue and plasma samples were analyzed using a real-time quantitative PCR assay. CMV markers were detected using immunohistochemistry and hematoxylin-eosin staining. Immunohistochemistry positivity was observed in tissue samples from eight (9.9%) patients. Only one (1.2%) patient showed CMV-specific intranuclear inclusion bodies. CMV DNA was detected in 63.0% of the tissues (median: 113 copies/mg) and in 58.5% of the plasma samples (median: 102 copies/mL). For tissues, sensitivity and the negative predictive value (NPV) for qPCR were excellent (100.0%), whereas specificity and the positive predictive value (PPV) were low (41.9% and 15.7%, respectively). For plasma, sensitivity and NPV were high (100.0%) for qPCR, whereas specificity and PPV were low (48.6% and 24.0%, respectively). CMV DNA ≥392 copies/mg in tissue samples (sensitivity 100.0% and specificity 83.6%) and ≥578 copies/mL (895 IU/mL) in plasma samples (sensitivity 66.7% and specificity 100.0%) provided an optimal diagnosis for this test. The qPCR method improved patient management through the early detection of CMV colitis in patients with UC. However, reliance on qPCR positivity alone can lead to overdiagnosis. Quantification of CMV DNA can improve diagnostic specificity, although standardization is warranted.


Subject(s)
Colitis, Ulcerative , Cytomegalovirus Infections , Cytomegalovirus , DNA, Viral , Real-Time Polymerase Chain Reaction , Sensitivity and Specificity , Humans , Colitis, Ulcerative/diagnosis , Colitis, Ulcerative/virology , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , Cytomegalovirus Infections/diagnosis , Cytomegalovirus Infections/virology , DNA, Viral/blood , DNA, Viral/genetics , Female , Male , Middle Aged , Adult , Real-Time Polymerase Chain Reaction/methods , Aged , Intestinal Mucosa/virology , Young Adult , Immunohistochemistry , Viral Load
7.
Diagn Microbiol Infect Dis ; 109(3): 116301, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38723453

ABSTRACT

Accurate detection and quantification of cytomegalovirus (CMV) is crucial to preventing adverse outcomes in immunocompromised individuals. Current assays were developed for use with plasma specimens, but CMV may be present in bronchoalveolar lavage (BAL) fluid and cerebrospinal fluid (CSF). We evaluated the performance of the Abbott Alinity m CMV assay compared to the Abbott RealTime CMV assay for quantification of CMV in plasma, BAL, and CSF specimens. To evaluate clinical performance, 190 plasma, 78 BAL, and 20 CSF specimens were tested with the Alinity m assay and compared to the RealTime assay. The Alinity m CMV assay showed high precision (SD <0.01 to 0.13) for all 3 specimen types. Clincal plasma and BAL specimens with quantifiable CMV DNA demonstrated strong correlation to RealTime CMV assay results (r2 = 0.9779 for plasma, r2 = 0.9373 for BAL). The Alinity m CMV assay may be useful for quantification of CMV in plasma, BAL, and CSF specimens.


Subject(s)
Bronchoalveolar Lavage Fluid , Cerebrospinal Fluid , Cytomegalovirus Infections , Cytomegalovirus , Humans , Bronchoalveolar Lavage Fluid/virology , Cytomegalovirus Infections/diagnosis , Cytomegalovirus Infections/cerebrospinal fluid , Cytomegalovirus Infections/virology , Cytomegalovirus/isolation & purification , Cytomegalovirus/genetics , Cerebrospinal Fluid/virology , Molecular Diagnostic Techniques/methods , Molecular Diagnostic Techniques/standards , Sensitivity and Specificity , Viral Load , Plasma/virology , DNA, Viral/cerebrospinal fluid
8.
PLoS One ; 19(5): e0303995, 2024.
Article in English | MEDLINE | ID: mdl-38771836

ABSTRACT

BACKGROUNDS: In critically ill patients with COVID-19, secondary infections are potentially life-threatening complications. This study aimed to determine the prevalence, clinical characteristics, and risk factors of CMV reactivation among critically ill immunocompetent patients with COVID-19 pneumonia. METHODS: A retrospective cohort study was conducted among adult patients who were admitted to ICU and screened for quantitative real-time PCR for CMV viral load in a tertiary-care hospital during the third wave of the COVID-19 outbreak in Thailand. Cox regression models were used to identify significant risk factors for developing CMV reactivation. RESULTS: A total of 185 patients were studied; 133 patients (71.9%) in the non-CMV group and 52 patients (28.1%) in the CMV group. Of all, the mean age was 64.7±13.3 years and 101 patients (54.6%) were males. The CMV group had received a significantly higher median cumulative dose of corticosteroids than the non-CMV group (301 vs 177 mg of dexamethasone, p<0.001). Other modalities of treatments for COVID-19 including anti-viral drugs, anti-cytokine drugs and hemoperfusion were not different between the two groups (p>0.05). The 90-day mortality rate for all patients was 29.1%, with a significant difference between the CMV group and the non-CMV group (42.3% vs. 24.1%, p = 0.014). Median length of stay was longer in the CMV group than non-CMV group (43 vs 24 days, p<0.001). The CMV group has detectable CMV DNA load with a median [IQR] of 4,977 [1,365-14,742] IU/mL and 24,570 [3,703-106,642] in plasma and bronchoalveolar fluid, respectively. In multivariate analysis, only a cumulative corticosteroids dose of dexamethasone ≥250 mg (HR = 2.042; 95%CI, 1.130-3.688; p = 0.018) was associated with developing CMV reactivation. CONCLUSION: In critically ill COVID-19 patients, CMV reactivation is frequent and a high cumulative corticosteroids dose is a significant risk factor for CMV reactivation, which is associated with poor outcomes. Further prospective studies are warranted to determine optimal management.


Subject(s)
COVID-19 , Critical Illness , Cytomegalovirus Infections , Cytomegalovirus , Humans , Male , Middle Aged , COVID-19/epidemiology , COVID-19/virology , COVID-19/complications , Female , Cytomegalovirus Infections/epidemiology , Cytomegalovirus Infections/drug therapy , Cytomegalovirus Infections/virology , Cytomegalovirus Infections/complications , Risk Factors , Aged , Cytomegalovirus/physiology , Cytomegalovirus/drug effects , Cytomegalovirus/isolation & purification , Retrospective Studies , Prevalence , SARS-CoV-2/isolation & purification , SARS-CoV-2/physiology , Virus Activation/drug effects , Thailand/epidemiology , Viral Load
10.
Turk Neurosurg ; 34(3): 448-452, 2024.
Article in English | MEDLINE | ID: mdl-38650560

ABSTRACT

AIM: To demonstrate if the human cytomegalovirus (HCMV) genome, that is involved in the pathogenesis of gliomas, is part of the genomic DNA of glioma cells or not. MATERIAL AND METHODS: The study included U87MG glioblastoma cell culture and tumor samples from glioma patients. The genomic DNA of tumor samples and U87MG cells were extracted and real-time quantitative PCR was used to assess the presence of the human cytomegalovirus genomic DNA. RESULTS: Consequently, HCMV positivity was not detected in the tumor and cell line genomic DNA under the aforementioned experimental conditions. CONCLUSION: We found that the genomic DNA of all the samples was negative for HCMV genomic DNA. Thus, HCMV could not be detected in human glioma tumors and we put forward that HCMV genomic DNA was not incorporated into the genomic DNA of glioma cells. Thus, total viral DNA is not involved in the pathogenesis of glioma; however, small viral particles or specific genes might be incorporated into the genomic DNA of glioma cells, leading to cancer development. This prompts further studies for verification.


Subject(s)
Brain Neoplasms , Cytomegalovirus , DNA, Viral , Genome, Viral , Glioma , Humans , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , DNA, Viral/analysis , DNA, Viral/genetics , Glioma/virology , Glioma/genetics , Cell Line, Tumor , Brain Neoplasms/virology , Brain Neoplasms/genetics , Male , Female , Cytomegalovirus Infections/virology , Middle Aged , Real-Time Polymerase Chain Reaction , Adult
11.
J Clin Virol ; 172: 105675, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38640886

ABSTRACT

BACKGROUND: Congenital CMV infection is the most common congenital infection worldwide and a major cause of neurological impairment and sensorineural hearing loss. Fetal CMV infection is confirmed by a positive PCR test in the amniotic fluid (amniocentesis performed after 18-20 weeks of gestation and at least 8 weeks after maternal infection). However, despite a negative antenatal CMV PCR result, some newborns can be tested positive at birth. Although not widely documented, the prognosis for these babies appears to be good. OBJECTIVES: The aim of this study is to evaluate the long-term prognosis of fetuses with a false-negative AFS for cCMV, with a minimum follow-up period of 6 years. STUDY DESIGN: This is a retrospective cohort study of false-negative amniocentesis reported at the CUB-Hôpital Erasme and Hôpital CHIREC in Brussels between 1985 and 2017. RESULTS: Of the 712 negative CMV PCR amniocenteses, 24 had a CMV PCR positive at birth. The false negative rate was 8.6 %. Of the 24 cases, 9 primary maternal infections occurred in the first trimester, 14 in the second trimester and 1 in the third trimester. Among the 24 children, 2 had symptoms at birth (hyperbilirubinemia and left paraventricular cysts), but all had normal follow-up (minimum 4 years, mean 16,6 years). DISCUSSION: Only 2 cases could be explained by early amniocentesis. Among the others, the false-negative results could be attributed to a low viral load, a delayed infection or, less likely, to a sample degradation. CONCLUSION: Despite the false-negative results, all 24 children had a normal long-term follow-up.


Subject(s)
Amniocentesis , Cytomegalovirus Infections , Pregnancy Complications, Infectious , Humans , Female , Pregnancy , Retrospective Studies , Cytomegalovirus Infections/diagnosis , Cytomegalovirus Infections/congenital , False Negative Reactions , Infant, Newborn , Follow-Up Studies , Pregnancy Complications, Infectious/virology , Pregnancy Complications, Infectious/diagnosis , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , Amniotic Fluid/virology , Male , Adult , Prognosis , Infectious Disease Transmission, Vertical , Polymerase Chain Reaction/methods
12.
Clin Transplant ; 38(5): e15327, 2024 May.
Article in English | MEDLINE | ID: mdl-38686437

ABSTRACT

INTRODUCTION: Cytomegalovirus (CMV) remains the predominant opportunistic infection following solid organ transplantation (SOT). While valganciclovir is the drug of choice for CMV prophylaxis, its utility can be compromised due to the risk of cytopenia. Letermovir, a novel agent approved for CMV prophylaxis in allogeneic hematopoietic stem cell transplant recipients and high-risk kidney transplant recipients, exhibits reduced toxicity. This study aims to present the practical application of letermovir as both primary and secondary prophylaxis against CMV in heart transplant recipients (HTR). METHODS: In this observational, retrospective, single-center study, we included all consecutive adult HTRs from June 2020 to January 2022 who were administered letermovir for CMV prophylaxis. We documented instances of CMV breakthrough infections, side effects related to letermovir, changes in neutropenia following the switch from valganciclovir to letermovir, and any drug interactions with the immunosuppressive regimen. RESULTS: The study comprised 10 patients: two received primary prophylaxis with letermovir due to a high risk of CMV infection (donor-positive, recipient-negative serostatus), and eight received it as secondary prophylaxis following a CMV infection. The median duration of letermovir administration was 8 months (range 3-12 months). No CMV breakthrough infections were reported while on prophylaxis. However, three patients experienced CMV breakthrough infections after discontinuing letermovir prophylaxis (30%). No significant side effects were observed, although one patient reported digestive intolerance. Among the nine patients on tacrolimus, six needed reduced doses after switching to letermovir. CONCLUSION: This real-life study appears to support the effectiveness of letermovir prophylaxis in HTR. Nonetheless, the risk of CMV infection post-treatment cessation is notable. Further drug monitoring and research on the efficacy of letermovir for CMV prophylaxis in SOT patients is warranted.


Subject(s)
Antiviral Agents , Cytomegalovirus Infections , Cytomegalovirus , Heart Transplantation , Humans , Cytomegalovirus Infections/prevention & control , Cytomegalovirus Infections/etiology , Heart Transplantation/adverse effects , Male , Retrospective Studies , Antiviral Agents/therapeutic use , Female , Middle Aged , Follow-Up Studies , Cytomegalovirus/isolation & purification , Adult , Aged , Prognosis , Acetates/therapeutic use , Quinazolines/therapeutic use , Transplant Recipients , Postoperative Complications/prevention & control , Risk Factors , Graft Rejection/prevention & control , Graft Rejection/etiology
13.
J Crit Care ; 82: 154766, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38479298

ABSTRACT

BACKGROUND: Cytomegalovirus (CMV) infection is associated with poor outcome in ICU patients. However, data on immunocompromised patients are scarce. This study aims to describe characteristics and outcomes of critically ill hematological patients and CMV infection. CMV disease characteristics and relationship between CMV viral load, CMV disease, coinfections by other pathogens and outcomes are described. METHODS: Retrospective single center study (Jan 2010-Dec 2017). Adult patients, admitted to the ICU, having underlying hematological malignancy and CMV infection were included. Results are reported as median (interquartile) or n (%). Factors associated with hospital mortality or CMV disease were analysed using logistic regression. RESULTS: 178 patients were included (median age 55y [42-64], 69.1% male). Hospital mortality was 53% (n = 95). Median viral load was 2.7 Log [2.3-3.5]. CMV disease occurred in 44 (24.7%) patients. Coinfections concerned 159 patients (89.3%). After adjustment for confounders, need for vasopressors (OR 2.53; 95%CI 1.11-5.97) and viral load (OR 1.88 per Log; 95%CI 1.29-2.85) were associated with hospital mortality. However, neither CMV disease nor treatment were associated with outcomes. Allogeneic stem cell transplantation (OR 2.55; 95%CI 1.05-6.16), mechanical ventilation (OR 4.11; OR 1.77-10.54) and viral load (OR 1.77 per Log; 95%CI 1.23-2.61) were independently associated with CMV disease. Coinfections were not associated with CMV disease or hospital mortality. CONCLUSION: In critically-ill hematological patients, CMV viral load is independently associated with hospital mortality. Conversely, neither CMV disease nor treatment was associated with outcome suggesting viral load to be a surrogate for immune status rather than a cause of poor outcome.


Subject(s)
Cytomegalovirus Infections , Hematologic Neoplasms , Hospital Mortality , Intensive Care Units , Viral Load , Humans , Male , Female , Middle Aged , Cytomegalovirus Infections/mortality , Cytomegalovirus Infections/epidemiology , Hematologic Neoplasms/therapy , Hematologic Neoplasms/mortality , Retrospective Studies , Intensive Care Units/statistics & numerical data , Adult , Critical Illness , Immunocompromised Host , Coinfection/epidemiology , Cytomegalovirus/isolation & purification
14.
Am J Transplant ; 24(6): 1057-1069, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38307417

ABSTRACT

Although cytomegalovirus (CMV) viremia/DNAemia has been associated with reduced survival after lung transplantation, its association with chronic lung allograft dysfunction (CLAD) and its phenotypes is unclear. We hypothesized that, in a modern era of CMV prophylaxis, CMV DNAemia would still remain associated with death, but also represent a risk factor for CLAD and specifically restrictive allograft syndrome (RAS)/mixed phenotype. This was a single-center retrospective cohort study of all consecutive adult, first, bilateral-/single-lung transplants done between 2010-2016, consisting of 668 patients. Risks for death/retransplantation, CLAD, or RAS/mixed, were assessed by adjusted cause-specific Cox proportional-hazards models. CMV viral load (VL) was primarily modeled as a categorical variable: undetectable, detectable to 999, 1000 to 9999, and ≥10 000 IU/mL. In multivariable models, CMV VL was significantly associated with death/retransplantation (≥10 000 IU/mL: HR = 2.65 [1.78-3.94]; P < .01), but was not associated with CLAD, whereas CMV serostatus mismatch was (D+R-: HR = 2.04 [1.30-3.21]; P < .01). CMV VL was not associated with RAS/mixed in univariable analysis. Secondary analyses with a 7-level categorical or 4-level ordinal CMV VL confirmed similar results. In conclusion, CMV DNAemia is a significant risk factor for death/retransplantation, but not for CLAD or RAS/mixed. CMV serostatus mismatch may have an impact on CLAD through a pathway independent of DNAemia.


Subject(s)
Cytomegalovirus Infections , Cytomegalovirus , Graft Rejection , Graft Survival , Lung Transplantation , Postoperative Complications , Viremia , Humans , Lung Transplantation/adverse effects , Cytomegalovirus Infections/virology , Cytomegalovirus Infections/epidemiology , Male , Female , Retrospective Studies , Middle Aged , Viremia/virology , Viremia/epidemiology , Cytomegalovirus/isolation & purification , Risk Factors , Follow-Up Studies , Graft Rejection/etiology , Graft Rejection/virology , Prognosis , Postoperative Complications/virology , Postoperative Complications/epidemiology , Adult , Viral Load , Survival Rate , Transplant Recipients/statistics & numerical data
15.
Retina ; 44(5): 909-915, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38271688

ABSTRACT

PURPOSE: To evaluate features of infectious panuveitis associated with multiple pathogens detected by ocular fluid sampling. METHODS: Single-center, retrospective, consecutive case series of patients with aqueous/vitreous polymerase chain reaction testing with >1 positive result in a single sample from 2001 to 2021. RESULTS: Of 1,588 polymerase chain reaction samples, 28 (1.76%) were positive for two pathogens. Most common pathogens were cytomegalovirus (n = 16, 57.1%) and Epstein-Barr virus (n = 13, 46.4%), followed by varicella zoster virus (n = 8, 28.6%), Toxoplasma gondii (n = 6, 21.4%), herpes simplex virus 2 (n = 6, 21.4%), herpes simplex virus 1 (n = 6, 21.4%), and Toxocara (n = 1, 3.6%). Mean initial and final visual acuity (logarithm of the minimum angle of resolution) were 1.3 ± 0.9 (Snellen ∼20/400) and 1.3 ± 1.1 (Snellen ∼20/400), respectively. Cytomegalovirus-positive eyes (n = 16, 61.5%) had a mean final visual acuity of 0.94 ± 1.1 (Snellen ∼20/175), whereas cytomegalovirus-negative eyes (n = 10, 38%) had a final visual acuity of 1.82 ± 1.0 (Snellen ∼20/1,320) ( P < 0.05). Main clinical features included intraocular inflammation (100%), retinal whitening (84.6%), immunosuppression (65.4%), retinal hemorrhage (38.5%), and retinal detachment (34.6%). CONCLUSION: Cytomegalovirus or Epstein-Barr virus were common unique pathogens identified in multi-PCR-positive samples. Most patients with co-infection were immunosuppressed with a high rate of retinal detachment and poor final visual acuity. Cytomegalovirus-positive eyes had better visual outcomes compared with cytomegalovirus-negative eyes.


Subject(s)
Aqueous Humor , Eye Infections, Viral , Panuveitis , Polymerase Chain Reaction , Visual Acuity , Humans , Retrospective Studies , Male , Female , Panuveitis/diagnosis , Panuveitis/virology , Panuveitis/drug therapy , Middle Aged , Aqueous Humor/virology , Eye Infections, Viral/diagnosis , Eye Infections, Viral/virology , Adult , Aged , DNA, Viral/analysis , Vitreous Body/virology , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , Young Adult , Toxoplasma/isolation & purification , Toxoplasma/genetics
16.
Ann N Y Acad Sci ; 1524(1): 30-36, 2023 06.
Article in English | MEDLINE | ID: mdl-37026581

ABSTRACT

Human cytomegalovirus (HCMV) is a prevalent herpesvirus, infecting the majority of the human population. Like other herpesviruses, it causes lifelong infection through the establishment of latency. Although reactivation from latency can cause significant morbidity and mortality in immunocompromised hosts, our understanding of HCMV latency and how it is maintained remains limited. Here, we discuss the characterized latency reservoir in hematopoietic cells in the bone marrow and the gaps in our knowledge of mechanisms that facilitate HCMV genome maintenance in dividing cells. We further review clinical evidence that strongly suggests the tissue origin of HCMV reactivation, and we outline similarities to murine cytomegalovirus where latency in tissue-resident cells has been demonstrated. Overall, we think these observations call for a rethinking of HCMV latency reservoirs and point to potential sources of HCMV latency that reside in tissues.


Subject(s)
Cytomegalovirus Infections , Cytomegalovirus , Virus Latency , Animals , Humans , Mice , Cytomegalovirus/isolation & purification , Cytomegalovirus/physiology , Cytomegalovirus Infections/virology , Muromegalovirus/physiology , Virus Activation , Virus Latency/physiology
17.
Congenit Anom (Kyoto) ; 63(3): 79-82, 2023 May.
Article in English | MEDLINE | ID: mdl-36946004

ABSTRACT

An early diagnosis and intervention for congenital cytomegalovirus infection can reduce long-term disability; however, the introduction of universal neonatal screening has been controversial worldwide. The present study clarified the outcome of a targeted screening protocol for detecting congenital cytomegalovirus infection based on suggestive perinatal conditions. In addition, the positive rate was compared to those from the reported studies and the validity of the targeted screening criteria was discussed. A total of 2121 newborn infants were admitted to our hospital between October 2018 and October 2021. Cytomegalovirus DNA was examined by the isothermal nucleic acid amplification method for urine samples from newborns with any of the following: microcephaly, abnormal ultrasound findings in the brain and visceral organs, repeated failure in neonatal hearing screening, suspicious maternal cytomegalovirus infection during pregnancy, and other abnormal findings suggestive of congenital cytomegalovirus infection. Among 2121 newborns, 102 (4.8%) were subject to the urine cytomegalovirus DNA test based on the abovementioned criteria. Of them, three were cytomegalovirus DNA-positive. According to the protocol, the cytomegalovirus DNA-positive rates were 0.14% among the total enrollment of 2121 newborns and 2.9% (3/102) among the targeted newborns. This protocol may overlook congenital cytomegalovirus infection that is asymptomatic or exhibits inapparent clinical manifestations only at birth; however, it is feasible and helps lead to the diagnosis of congenital cytomegalovirus infection that may otherwise be overlooked.


Subject(s)
Cytomegalovirus Infections , Cytomegalovirus , Humans , Infant, Newborn , Cytomegalovirus/genetics , Cytomegalovirus/isolation & purification , Cytomegalovirus/physiology , Cytomegalovirus Infections/diagnosis , Cytomegalovirus Infections/pathology , Cytomegalovirus Infections/urine , Cytomegalovirus Infections/virology , Infant, Newborn, Diseases/diagnosis , Infant, Newborn, Diseases/pathology , Infant, Newborn, Diseases/urine , Infant, Newborn, Diseases/virology , Neonatal Screening , Female , Pregnancy , DNA, Viral/genetics
18.
JAMA Otolaryngol Head Neck Surg ; 149(2): 122-130, 2023 02 01.
Article in English | MEDLINE | ID: mdl-36580312

ABSTRACT

Importance: With a prevalence between 0.2% and 6.1% of all live births, congenital cytomegalovirus (cCMV) infection is a major cause of congenital nonhereditary sensorineural hearing loss. Despite the large amount of research on cCMV-related hearing loss, it is still unclear which newborns are at risk of hearing loss. Objective: To identify independent risk factors for cCMV-related congenital hearing loss and predictors of hearing loss severity at birth. Design, Setting, and Participants: This cross-sectional study of newborns with cCMV infection used data included in the Flemish CMV registry that was collected from 6 secondary and tertiary hospitals in Flanders, Belgium, over 15 years (January 1, 2007, to February 7, 2022). Data were analyzed March 3 to October 19, 2022. Patients were included in the study after confirmed diagnosis of cCMV infection and known hearing status at birth. Patients who presented with other possible causes of sensorineural hearing loss were excluded. Main Outcomes and Measures: Primary outcome was hearing status at birth. Clinical, neurological, and laboratory findings along with the timing of seroconversion and blood viral load were separately considered as risk factors. Binary logistic regression was performed to identify independent risk factors for congenital hearing loss in newborns with cCMV. Effect sizes were measured using Hedges g, odds ratio, or Cramer V. Results: Of the 1033 newborns included in the study (553 of 1024 [54.0%] boys), 416 (40.3%) were diagnosed with symptomatic cCMV infection and 617 (59.7%) with asymptomatic cCMV infection. A total of 15.4% of the patients (n = 159) presented with congenital hearing loss; half of them (n = 80 [50.3%]) had isolated hearing loss. The regression model revealed 3 independent risk factors for congenital hearing loss: petechiae at birth (adjusted odds ratio [aOR], 6.7; 95% CI, 1.9-23.9), periventricular cysts on magnetic resonance imaging (MRI; aOR, 4.6; 95% CI, 1.5-14.1), and seroconversion in the first trimester (aOR, 3.1; 95% CI, 1.1-9.3). Lower viral loads were seen in patients with normal hearing compared with those with congenital hearing loss (median [IQR] viral load, 447.0 [39.3-2345.8] copies per milliliter of sample [copies/mL] vs 1349.5 [234.3-14 393.0] copies/mL; median difference, -397.0 [95% CI, -5058.0 to 174.0] copies/mL). Conclusions and Relevance: Findings of this cross-sectional study suggest that newborns with cCMV infection and petechiae at birth, periventricular cysts on MRI, or a seroconversion in the first trimester had a higher risk of congenital hearing loss. Clinicians may use these risk factors to counsel parents in the prenatal and postnatal periods about the risk of congenital hearing loss. Moreover, linking clinical features to hearing loss may provide new insights into the pathogenesis of cCMV-related hearing loss. The importance of viral load as a risk factor for congenital hearing loss remains unclear.


Subject(s)
Cysts , Cytomegalovirus Infections , Deafness , Hearing Loss, Sensorineural , Hearing Loss , Male , Pregnancy , Female , Infant, Newborn , Humans , Child , Cross-Sectional Studies , Cytomegalovirus Infections/complications , Cytomegalovirus Infections/epidemiology , Cytomegalovirus Infections/diagnosis , Hearing Loss/complications , Hearing Loss, Sensorineural/epidemiology , Hearing Loss, Sensorineural/etiology , Hearing Loss, Sensorineural/diagnosis , Cytomegalovirus/isolation & purification , Risk Factors , Cysts/complications
19.
BMC Pulm Med ; 22(1): 55, 2022 Feb 08.
Article in English | MEDLINE | ID: mdl-35130846

ABSTRACT

BACKGROUND: Human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) infection can lead to a broad spectrum of lung diseases, including infectious diseases and tumors. Recently, with the wide application of bronchoscopes and cytopathology of bronchoalveolar lavage fluid (BALF), the diagnostic efficiency of lung diseases has improved. The present study focuses on analyzing the cytopathologic characteristics of BALF in the diagnosis of HIV/AIDS-related lung disease and comparing the lung disease spectrum between HIV and HIV-uninfected patients. METHODS: BALF specimens were collected from 2211 patients. Using ThinPrep liquid-based technology, the cytologic smears were prepared by staining with Hematoxylin and Eosin (HE), Gomori's methenamine silver (GMS), and Periodic Acid Schiff (PAS), acid-fast and immunocytochemical (ICC) staining. Real-time PCR was used to detect cytomegalovirus (CMV) and Mycobacterium tuberculosis (M. tuberculosis) in the remaining BALF. PCR-reverse dot hybridization was used for mycobacterial species identification. RESULTS: From the 2211 BALF specimens, 1768 (79.96%) were specimens from HIV-infected patients, and 443 (20.04%) were speciments from HIV-uninfected patients. The HIV-infected patients with a median age of 38.5 ± 11.3 years were markedly younger than the HIV-uninfected patients (52.9 ± 14.9 years) (p < 0.01). We found that 1635 (92.5%) HIV-infected patients were males, showing a prominently higher proportion than those without HIV infection (71.1%) (p < 0.01). Meanwhile, 1045 specific lesions were found in 1768 HIV-infected patients (59.1%), including 1034 cases of infectious diseases and 11 neoplastic lesions, also exhibiting a distinctly higher proportion compared to the HIV-uninfected patients (12.2%) (p < 0.001). For the HIV-infected group, a distinctly higher proportion of single infection lesions (724/1768, 41%) was noted than the HIV-uninfected group (14/443, 3.2%) (p < 0.001). Among single infection lesions, the most common was Cytomegalovirus(CMV) infection (20.9%) for the HIV-infected group, followed by Pneumocystis jiroveci(PJ) (13.0%), Fungal (3.5%), and Mycobacterial infections (3.4%), of which M. tuberculosis infection accounted for 3.1%. Double infections (300/1768, 17.0%) and Triple infections (10/1768, 0.6%) were found only among the patients with HIV. The malignancies among HIV-infected patients included adenocarcinomas (0.22%), small cell carcinomas (0.2%), squamous cell carcinomas (0.1%), and diffuse large B-cell lymphoma (0.1%). HIV-infected patients exhibited a significantly lower incidence of neoplastic lesions (0.6% vs. 9.0%) than the HIV-uninfected patients (p < 0.001). CONCLUSIONS: There was a significant difference in the spectrum of lung diseases between HIV-infected and non-infected patients diagnosed by BALF cytopathology.


Subject(s)
Bronchoalveolar Lavage Fluid/microbiology , HIV Infections/complications , Respiratory Tract Infections , Adolescent , Adult , Aged , China/epidemiology , Comorbidity , Cytomegalovirus/isolation & purification , Cytomegalovirus Infections/epidemiology , Female , Humans , Male , Middle Aged , Respiratory Tract Infections/complications , Respiratory Tract Infections/diagnosis , Respiratory Tract Infections/epidemiology , Respiratory Tract Infections/microbiology , Young Adult
20.
Medicine (Baltimore) ; 101(1): e28359, 2022 Jan 07.
Article in English | MEDLINE | ID: mdl-35029881

ABSTRACT

ABSTRACT: We evaluated the association between antiviral treatment duration and relapse of gastrointestinal (GI) cytomegalovirus (CMV) disease by analyzing the risk factors for relapse.Patients who were diagnosed with GI CMV disease at a tertiary hospital from January 2008 to April 2019 were retrospectively enrolled. Patients with relapsed disease were those with a recurrence of GI CMV disease at least 4 weeks after the initial antiviral treatment.Of 238 participants, including 145 (51.9%) with upper and 93 (48.1%) with lower GI CMV diseases, 27 (11.3%) had experienced relapses. The difference in antiviral treatment duration between the relapsed and nonrelapsed GI CMV groups was not significant (median days, 21.0 vs 17.0, P = .13). Multivariate analysis revealed that hematologic malignancy (odds ratio, 3.73; P = .026) and ulcerative colitis (odds ratio, 4.61; P = .003) were independent risk factors for relapse. Participants with at least one of these risk factors and those with no independent risk factors were classified under the high- (relapse rate, 25.9%) and low-risk of relapse groups (relapse rate, 6.7%), respectively. Accordingly, we further stratified 180 (75.6%) and 58 (24.4%) participants under the low- and high-risk of relapse groups, respectively. There was no significant difference in relapse rates between the high- and low-risk groups according to antiviral treatment duration.Approximately 10% of the participants experienced relapses after antiviral treatment, with hematologic malignancy and ulcerative colitis featuring as risk factors. Therefore, prolonged antiviral treatment might not be helpful in preventing GI CMV disease relapse.


Subject(s)
Antiviral Agents/therapeutic use , Cytomegalovirus Infections/drug therapy , Cytomegalovirus/isolation & purification , Hematologic Neoplasms/epidemiology , Aged , Colitis, Ulcerative/drug therapy , Cytomegalovirus Infections/epidemiology , Female , Gastrointestinal Diseases/drug therapy , Gastrointestinal Diseases/epidemiology , Humans , Male , Middle Aged , Neoplasm Recurrence, Local/drug therapy , Retrospective Studies
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