Journal of NeuroVirology最新文献

{"title":"HIV associated motor neuron disease (MND): A case series with systematic review of literature.","authors":"Farsana Mustafa, Sapna Mittal, Divyani Garg, Ayush Agarwal, Ajay Garg, Baidnath Kumar Gupta, Manish Soneja, Achal Kumar Srivastava","doi":"10.1007/s13365-025-01244-z","DOIUrl":"10.1007/s13365-025-01244-z","url":null,"abstract":"<p><p>Human immunodeficiency virus (HIV) associated motor neuron disease (MND) is very rare. HIV infection can cause an MND-like syndrome due to central nervous system (CNS) involvement de novo or during antiretroviral therapy (ART) due to CNS escape. We present two cases: one with a classic amyotrophic lateral sclerosis (ALS) phenotype, which was the manifestation of symptomatic CNS escape from ART, and the second with a primary lateral sclerosis (PLS) phenotype associated with underlying HIV infection. A systematic review of published literature of people living with HIV (PLHIV) who developed ALS/ MND was conducted using the PubMed, Embase, and Lilacs databases. A total of 91 cases were found, 89 of which were obtained from 37 articles, and two were included from our own case series. In patients with HIV-associated MND, 63 patients reviewed had a classic ALS phenotype followed by progressive muscular atrophy variant (12), progressive bulbar palsy (8), PLS (7) and bulbar onset ALS (1). Neuroimaging, electrophysiology, cerebrospinal fluid (CSF) analysis, CSF and serum HIV viral load, and CD4 count investigations were used for diagnosis. Following the initiation or modification of antiretroviral therapy (ART), approximately 70% exhibited an improvement or a stable disease course. HIV-associated MND is a rare condition that can occur in both ART-naive individuals and those on treatment. A proportion of cases (~ 70%) show improvement with ART. Accurate diagnosis requires the exclusion of opportunistic infections, which remains a critical yet challenging aspect of managing this condition.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"1-15"},"PeriodicalIF":1.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Greater humoral EBV response may be associated with choroid plexus inflammation in progressive MS.","authors":"Dejan Jakimovski, Robert Zivadinov, Murali Ramanathan, Bianca Weinstock-Guttman, Eleonora Tavazzi, Michael G Dwyer, Niels Bergsland","doi":"10.1007/s13365-024-01231-w","DOIUrl":"10.1007/s13365-024-01231-w","url":null,"abstract":"<p><p>Choroid plexus (CP) inflammation can be quantified in vivo with MRI in people with multiple sclerosis (pwMS). It remains unknown whether Epstein Barr Virus (EBV) is related to CP changes. Total of 170 pwMS (116 relapsing-remitting; RRMS and 54 progressive MS; PMS) underwent MRI examination and measurement of humoral anti-EBV response. CP volume and CP pseudo-T2 (pT2), a relaxation time indicative of edema and neuroinflammation, were measured. Moreover, anti-EBV nuclear antigen-1 (EBNA-1) IgG and anti-EBV capsid antigen (VCA) IgG antibodies were measured. The PMS group had greater CP pT2 value when compared to RRMS (1120ms vs. 954ms, p = 0.037). After adjusting for age and therapy effects, higher CP pT2 values were associated with higher anti-EBNA-1 IgG levels only in PMS (r = 0.352, p = 0.015). Higher Anti-EBV humoral response in pwMS may be associated with increased CP neuroinflammatory changes and may be more relevant for the later chronic stage of the disease. Large-scale studies should investigate whether these findings are generalizable to all types of progressive MS.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"545-549"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incidence of tick-borne encephalitis (TBE) in the pediatric population at the University Hospitals of Strasbourg (HUS) and characterization of confirmed cases.","authors":"Assilina Parfut, Ludovic Glady, Gaëlle Gonzalez, Marie-Josée Wendling, Anne Laure Pierson, Anne Ertle, Christiane Anstotz, Catherine Lorentz, Axelle Grub, Yves Hansmann, Sarah Baer, Pierre Gantner, Samira Fafi-Kremer, Aurélie Velay","doi":"10.1007/s13365-024-01233-8","DOIUrl":"10.1007/s13365-024-01233-8","url":null,"abstract":"<p><p>Tick-borne encephalitis (TBE) is a vector-borne disease caused by the TBE virus (TBEV). Although TBEV infection in children seems to lead to a milder clinical presentation, data in pediatrics are scarce. We aimed to determine the incidence of TBE among pediatric patients presenting with neurological symptoms from January 2020 to December 2022 at the University Hospital of Strasbourg (HUS), France. 462 Patients for whom cerebrospinal fluid (CSF) samples were available were included and categorized by age group: 0-4 years, 5-9 years, and 10-15 years. Serological tests and RT-PCR were carried out on the CSF samples, and the positive results were confirmed by seroneutralization test (SNT). A CSF IL-6 assay was performed for confirmed cases. We retrospectively detected four TBE-confirmed cases. We found an incidence of 1.51 cases per 100,000 inhabitants in the pediatric population over 2020-2022. The four cases were girls, with a median age of 10.4 years. The symptoms appeared in two cases in October 2022, outside the seasonal peak. Signs of encephalitis were present in two patients, and persistent sequelae were reported in three patients and two more than a year after hospitalization. None of the confirmed cases were vaccinated against TBEV despite frequent exposure to ticks. Intrathecal concentrations of IL-6 were increased for two patients; for one patient, the concentration was significantly higher than the values found in control cases. Our data highlight the need for early diagnosis and long-term follow-up of affected children and raise questions about the evolution of vaccination recommendations.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"534-544"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142558010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upregulation of microRNAs correlates with downregulation of HERV-K expression in Parkinson's disease.","authors":"Elena Rita Simula, Somaye Jasemi, Kay Paulus, Leonardo Antonio Sechi","doi":"10.1007/s13365-024-01234-7","DOIUrl":"10.1007/s13365-024-01234-7","url":null,"abstract":"<p><p>Human endogenous retroviruses (HERVs) involvement in neurological diseases has been extensively documented, although the etiology of HERV reactivation remains unclear. MicroRNAs represent one of the potential regulatory mechanisms of HERV reactivation. We identified fourteen microRNAs predicted to bind the HERV-K transcript, and subsequently analyzed for their gene expression levels alongside those of HERV-K. We documented an increased expression of four microRNAs in patients with Parkinson's disease compared to healthy controls, which correlated with a downregulation of HERV-K transcripts. We hypothesize that specific microRNAs may bind to HERV-K transcripts, leading to its downregulation.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"550-555"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the effects of the Zika Virus-Immunoglobulin G⁺ complex on murine microglial cells.","authors":"Laura da Silva Siqueira, Felipe Valle Fortes Rodrigues, Ângela Zanatta, João Ismael Budelon Gonçalves, Isadora Machado Ghilardi, Allan Marinho Alcará, Nicole Bernd Becker, Giulia Pinzetta, Gabriele Zanirati, Bruno Maestri Abrianos Becker, Helena Scartassini Erwig, Jaderson Costa da Costa, Daniel Rodrigo Marinowic","doi":"10.1007/s13365-024-01218-7","DOIUrl":"10.1007/s13365-024-01218-7","url":null,"abstract":"<p><p>After the Zika virus (ZIKV) epidemic in Brazil, ZIKV infections were linked to damage to the central nervous system (CNS) and congenital anomalies. Due to the virus's ability to cross the placenta and reach brain tissue, its effects become severe, leading to Congenital Zika Syndrome (CZS) and resulting in neuroinflammation, microglial activation, and secretion of neurotoxic factors. The presence of ZIKV triggers an inadequate fetal immune response, as the fetus only has the protection of maternal antibodies of the Immunoglobulin G (IgG) class, which are the only antibodies capable of crossing the placenta. Because of limited understanding regarding the long term consequences of ZIKV infection and the involvement of maternal antibodies, this study sought to assess the impact of the ZIKV + IgG⁺complex on murine microglial cells. The cells were exposed to ZIKV, IgG antibodies, and the ZIKV + IgG⁺complex for 24 and 72 h. Treatment-induced cytotoxic effects were evaluated using the cell viability assay, oxidative stress, and mitochondrial membrane potential. The findings indicated that IgG antibodies exhibit cytotoxic effects on microglia, whether alone or in the presence of ZIKV, leading to compromised cell viability, disrupted mitochondrial membrane potential, and heightened oxidative damage. Our conclusion is that IgG antibodies exert detrimental effects on microglia, triggering their activation and potentially disrupting the creation of a neurotoxic environment. Moreover, the presence of antibodies may correlate with an elevated risk of ZIKV-induced neuroinflammation, contributing to long-term CNS damage.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"477-488"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141457515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of peripheral T cell exhaustion and monocyte subpopulations in neurocognitive impairment and brain atrophy in chronic HIV infection.","authors":"Brooks I Mitchell, Isabelle E Yazel Eiser, Kalpana J Kallianpur, Louie Mar Gangcuangco, Dominic C Chow, Lishomwa C Ndhlovu, Robert Paul, Cecilia M Shikuma","doi":"10.1007/s13365-024-01223-w","DOIUrl":"10.1007/s13365-024-01223-w","url":null,"abstract":"<p><strong>Background: </strong>HIV-associated neurocognitive disorders (HAND) is hypothesized to be a result of myeloid cell-induced neuro-inflammation in the central nervous system that may be initiated in the periphery, but the contribution of peripheral T cells in HAND pathogenesis remains poorly understood.</p><p><strong>Methods: </strong>We assessed markers of T cell activation (HLA-DR + CD38+), immunosenescence (CD57 + CD28-), and immune-exhaustion (TIM-3, PD-1 and TIGIT) as well as monocyte subsets (classical, intermediate, and non-classical) by flow cytometry in peripheral blood derived from individuals with HIV on long-term stable anti-retroviral therapy (ART). Additionally, normalized neuropsychological (NP) composite test z-scores were obtained and regional brain volumes were assessed by magnetic resonance imaging (MRI). Relationships between proportions of immune phenotypes (of T-cells and monocytes), NP z-scores, and brain volumes were analyzed using Pearson correlations and multiple linear regression models.</p><p><strong>Results: </strong>Of N = 51 participants, 84.3% were male, 86.3% had undetectable HIV RNA < 50 copies/ml, median age was 52 [47, 57] years and median CD4 T cell count was 479 [376, 717] cells/uL. Higher CD4 T cells expressing PD-1 + and/or TIM-3 + were associated with lower executive function and working memory and higher CD8 T cells expressing PD-1⁺ and/or TIM-3⁺ were associated with reduced brain volumes in multiple regions (putamen, nucleus accumbens, cerebellar cortex, and subcortical gray matter). Furthermore, higher single or dual frequencies of PD-1 + and TIM-3 + expressing CD4 and CD8 T-cells correlated with higher CD16 + monocyte numbers.</p><p><strong>Conclusions: </strong>This study reinforces evidence that T cells, particularly those with immune exhaustion phenotypes, are associated with neurocognitive impairment and brain atrophy in people living with HIV on ART. Relationships revealed between T-cell immune exhaustion and inflammatory in CD16⁺ monocytes uncover interrelated cellular processes likely involved in the immunopathogenesis of HAND.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"489-499"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141468752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innate immune memory in chronic HIV and HIV-associated neurocognitive disorders (HAND): potential mechanisms and clinical implications.","authors":"Zachary Capriotti, Zachary Klase","doi":"10.1007/s13365-024-01239-2","DOIUrl":"10.1007/s13365-024-01239-2","url":null,"abstract":"<p><p>Although antiretroviral therapy (ART) has dramatically improved the outlook of the HIV/AIDS pandemic, people living with HIV (PLWH) on suppressive therapy are still at higher risk for a range of comorbidities including cardiovascular disease (CVD) and HIV-associated neurocognitive disorders (HAND), among others. Chronic inflammation and immune activation are thought to be an underlying cause of these comorbidities. Many of the factors thought to drive chronic inflammation and immune activation in HIV overlap with factors known to induce trained immunity. Trained immunity is a form of innate immune memory that metabolically and epigenetically reprograms innate immune cells to mount enhanced inflammatory responses upon secondary encounter with unrelated inflammatory stimuli. While this phenotype has been characterized in a variety of disease states in animals and humans, very little is known about its potential contribution to chronic HIV pathogenesis. In this review, a broad overview of innate immune memory in the periphery and the central nervous system (CNS) is provided and the evidence for trained immunity in the context of HIV is considered. In PLWH on ART, this phenotype could contribute to the chronic inflammation and immune activation associated with HIV comorbidities and could complicate HIV cure strategies due to the potential persistence of the phenotype after eradication of the virus. Further research into this immune state in the context of HIV may open the door for new therapeutics aimed at treating HIV comorbidities like HAND.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"451-476"},"PeriodicalIF":1.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11846772/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142895595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A rare kind of Guillain-Barre syndrome triggered by acute hepatitis A infection in a pediatric patient: a case report and review of literature.","authors":"Erfan Shahabinejad, Amirreza Shakoeizadeh, Alireza Vakilian, Seyyed Mohammad Alipour, Fatemeh Jalali, Faezeh Ebrahimi, Narges Mashyekhi","doi":"10.1007/s13365-024-01237-4","DOIUrl":"10.1007/s13365-024-01237-4","url":null,"abstract":"<p><p>Guillain-Barre Syndrome (GBS) is a rare but serious neurological disorder characterized by acute flaccid paralysis and areflexia, usually after an infectious disease. This case report describes a previously healthy 9-year-old boy who developed GBS following an acute hepatitis A infection. The patient presented with rapidly progressive weakness, ascending paralysis, and areflexia, confirmed by clinical and electrophysiological findings. Results were consistent with the GBS subgroup of Acute Motor Axonal Neuropathy. Treatment with intravenous immunoglobulin (IVIG) led to gradual improvement, highlighting the importance of early recognition and intervention. This report reviews the current literature on the association between GBS and hepatitis A, emphasizing the rarity of such cases in pediatric populations. The report aims to raise awareness among clinicians about this potential complication of hepatitis A, underscoring the need for prompt diagnosis and treatment to improve outcomes in similar cases. The report emphasizes the need for prompt diagnosis and treatment to improve outcomes in similar cases.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"559-564"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atypical disseminated herpes zoster infections in patients with demyelinating disease treated with dimethyl fumarate.","authors":"Alexandra Balshi, John Dempsey, Jacob A Sloane","doi":"10.1007/s13365-024-01230-x","DOIUrl":"10.1007/s13365-024-01230-x","url":null,"abstract":"<p><p>We report two patients who developed atypical, disseminated herpes zoster infections while on dimethyl fumarate (DMF) treatment, one with varicella zoster virus (VZV) encephalitis and another with herpes zoster oticus resulting in lasting motor and sensory deficits. We recommend vaccination against VZV prior to DMF initiation be incorporated as standard of care, as ensuring patients are protected against VZV before starting DMF can prevent such severe outcomes.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"556-558"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Substance use moderates relationships between apolipoprotein E genotype, hepatitis C, cognition, and depression in Miami Adult Studies on HIV (MASH) participants.","authors":"Shanna L Burke, Adrienne Grudzien, Tan Li, Stephanie Garcia, Sabrina Sales Martinez, Emily Jurich, Daniel R Jimenez, Jacqueline Hernández, Qingyun Liu, Tahirah A Tyrell, Adriana L Campa, Anglique Johnson, Zoran Bursac, Marianna K Baum","doi":"10.1007/s13365-024-01225-8","DOIUrl":"10.1007/s13365-024-01225-8","url":null,"abstract":"<p><p>The impact of APOE on HIV and HCV disease course, cognition, and memory has been understudied in minoritized populations. This study examined whether scores on cognition and depression measures differed by APOE ε4 carrier status while considering HCV and HIV seropositivity and whether these measures were moderated by substance use. A retrospective analysis examined cognitive and psychological data from participants (n = 493) in the Miami Adult Studies on HIV (MASH) cohort. APOE genotyping was performed on banked blood samples. Multiple linear regression was employed to examine differences across participants living with and without HIV and/or HCV and by APOE ε4 genotype. APOE ε4 carriers living with HCV who used cannabis had higher depression scores than non-ε4 carriers, while nonusers had fewer depressive symptoms. APOE ε4 carriers living with HCV had better cognition scores after adjusting for cocaine, opiate, and cannabis use than non-ε4 carriers. Scores on cognitive and depression measures did not differ between APOE ε4 carriers and non-ε4 carriers in participants living with HIV, and substance use did not moderate this relationship. This study was the first of its kind to examine substance use as a moderator for cognition and depression among individuals with HIV and/or HCV stratified by APOE genotype. Findings support further research evaluating the frequency and duration of 1) domains of cognitive functioning impacted by APOE genotype relevant to substance use and 2) the influence of substance use on cognitive and depressive outcomes among adults living with HIV and HCV, HIV, or HCV.</p>","PeriodicalId":16665,"journal":{"name":"Journal of NeuroVirology","volume":" ","pages":"500-512"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11926972/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141971319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}