Abstract:
:HIV-1 viral proteins have been implicated in endothelial dysfunction, which is a major determinant of ischaemic stroke risk in HIV-infected individuals. Polymorphisms in HIV-1 viral protein R (Vpr) may alter its potential to promote endothelial dysfunction, by modifying its effects on viral replication, reactivation of latent cells, upregulation of pro-inflammatory cytokines and infection of macrophages. We analysed Vpr polymorphisms and their association with acute ischaemic stroke by comparing Vpr signature amino acids between 54 HIV-infected individuals with acute ischaemic stroke, and 80 age-matched HIV-infected non-stroke controls. Isoleucine at position 22 and serine at position 41 were associated with ischaemic stroke in HIV. Individuals with stroke had lower CD4 counts and CD4 nadirs than controls. These polymorphisms are unique to individuals with stroke compared to South African subtype C and the control group consensus sequences. Signature Vpr polymorphisms are associated with acute ischaemic stroke in HIV. These may increase stroke risk by promoting endothelial dysfunction and susceptibility to opportunistic infections. Therapeutic targeting of HIV-1 viral proteins may present an additional mechanism of decreasing stroke risk in HIV-infected individuals.
journal_name
J Neuroviroljournal_title
Journal of neurovirologyauthors
McMullen K,Bateman K,Stanley A,Combrinck M,Engelbrecht S,Bryer Adoi
10.1007/s13365-020-00936-ysubject
Has Abstractpub_date
2021-01-18 00:00:00eissn
1355-0284issn
1538-2443pii
10.1007/s13365-020-00936-ypub_type
杂志文章abstract::Cognitive and functional neural correlates of human immunodeficiency virus (HIV) are only partially understood at present. Variability in neural response, which has been noted in the literature, may relate to clinical factors associated with HIV, including time since HIV diagnosis, CD4 count and nadir, HIV viral load,...
journal_title:Journal of neurovirology
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abstract::Herpes simplex virus (HSV) latent infection of ganglion neurons follows axoplasmic transport of HSV, probably in the form of nucleocapsid from peripheral sites of infection (e.g. footpad). This raises the possibility that latency is dependent on this particular means of presenting HSV to ganglion neurons. To investiga...
journal_title:Journal of neurovirology
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doi:10.3109/13550289809113497
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journal_title:Journal of neurovirology
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abstract::Human herpesvirus-6, the etiologic agent of exanthem subitum, is a ubiquitous virus that infects almost all children by the age of 2 years and that has previously been shown to be neuroinvasive. These characteristics suggest that human herpesvirus-6 may be important in the neuropathogenesis of acquired immune deficien...
journal_title:Journal of neurovirology
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abstract::Gliomas are the most frequent primary brain tumors in humans. Many studies have been carried out on their etiology; however, the only confirmed risk factors are hereditary predisposing conditions and high dose of ionizing radiation. Recently, human cytomegalovirus (HCMV) gene products and nucleic acids were reported t...
journal_title:Journal of neurovirology
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abstract::Age-dependent poliomyelitis (ADPM) is a virally induced neuroparalytic disease of mice and a model for amyotrophic lateral sclerosis (ALS). ADPM is triggered in genetically susceptible mice by immunosuppression and infection with lactate dehydrogenase-elevating virus (LDV). Both ADPM and ALS are characterized by progr...
journal_title:Journal of neurovirology
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journal_title:Journal of neurovirology
pub_type: 杂志文章
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journal_title:Journal of neurovirology
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abstract::Activated murine cytotoxic T cells express the NKG2D natural cytotoxicity receptor. This receptor recognizes major histocompatibility complex (MHC) class I-like molecules expressed on the surface of infected cells and serves to augment T cell-mediated cytotoxicity. The role of NKG2D-mediated augmentation in the cleara...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1080/13550280802105002
更新日期:2008-05-01 00:00:00
abstract::Factors associated with HIV-associated neurocognitive disorders (HAND) include CD4(+) nadir and count, HIV RNA level, and HIV-1 subtype. Here, we investigated demographical and clinical markers with respect to HAND in a homogenous Chinese population. Individuals with HAND (global deficit score ≥0.5) had lower nadir (p...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1007/s13365-015-0377-4
更新日期:2016-04-01 00:00:00
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journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1080/13550280490261716
更新日期:2004-02-01 00:00:00
abstract::There are only few documented cases of progressive multifocal leukoencephalopathy (PML) in Africa. Whether this is caused by a lack of JC virus (JCV) spread or alteration in the JCV genome is unknown. We characterized the clinical presentation, laboratory findings, and JCV regulatory region (RR) pattern of the first d...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1007/s13365-019-00746-x
更新日期:2019-08-01 00:00:00
abstract::In the highly active antiretroviral therapy (HAART) era, the role of the inflammatory response in acquired immunodeficiency syndrome (AIDS)-related progressive multifocal leukoencephalopathy (PML) remains controversial. In this study, JC virus DNA load and levels of cytokines were determined in cerebrospinal fluid (CS...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1080/13550280590924539
更新日期:2005-04-01 00:00:00
abstract::The latency-associated transcript (LAT) is the only herpes simplex virus type 1 (HSV-1) gene that is abundantly transcribed during latency. Plasmids expressing LAT inhibit apoptosis induced by etoposide and ceramide in transiently transfected cells. LAT also inhibits apoptosis in trigeminal ganglia of rabbits and prom...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1080/13550280290101085
更新日期:2002-12-01 00:00:00
abstract::The cerebral immune response induced by herpes simplex virus (HSV) encephalitis (HSE) was evaluated in susceptible BALB/c and resistant C57BL/6 mice. BALB/c and C57BL/6 (named C57BL/6-high) mice were respectively infected intranasally with 1 × 103 and 5 × 105 plaque-forming units (PFUs) of HSV-1. C57BL/6 mice (named C...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1007/s13365-019-00730-5
更新日期:2019-06-01 00:00:00
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journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1007/s13365-015-0391-6
更新日期:2016-06-01 00:00:00
abstract::Our previous studies in an experimental model of rabies showed neuronal process degeneration in association with severe clinical disease. Cultured adult rodent dorsal root ganglion neurons infected with challenge virus standard (CVS)-11 strain of rabies virus (RABV) showed axonal swellings and reduced axonal growth wi...
journal_title:Journal of neurovirology
pub_type: 杂志文章
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journal_title:Journal of neurovirology
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1007/s13365-015-0368-5
更新日期:2016-02-01 00:00:00
abstract::Most immunosuppressed individuals who develop progressive multifocal leukoencephalopathy (PML) have a rapid fatal outcome, whereas some become long-term survivors. We explored the impact of the cellular immune response against JC virus (JCV) on the clinical outcome of 7 HIV+ and 3 HIV- individuals with PML. Of the 4 H...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1080/13550280152537175
更新日期:2001-08-01 00:00:00
abstract::In HIV patients, HCV co-infection has been associated with an increased risk of progressive multifocal leukoencephalopathy (PML). Furthermore, PML has also been described in patients with cirrhosis, whether related to HCV infection or not. We describe here the case of a HIV/HCV co-infected patient with cirrhosis who d...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.1007/s13365-020-00848-x
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abstract::Combination antiretroviral therapy (CART) has greatly reduced medical morbidity and mortality with HIV infection, but high rates of HIV-associated neurocognitive disorders (HAND) continue to be reported. Because large HIV-infected (HIV+) and uninfected (HIV-) groups have not been studied with similar methods in the pr...
journal_title:Journal of neurovirology
pub_type: 杂志文章,多中心研究
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abstract::Quinolinic acid (QUIN) is a tryptophan metabolite which has been found to be an excitotoxin in rats, although its toxicity in humans is unknown. QUIN has been implicated in the pathogenesis of AIDS dementia complex. This study examined the effect of QUIN on human fetal brain tissue in vitro. After at least 14 days in ...
journal_title:Journal of neurovirology
pub_type: 杂志文章
doi:10.3109/13550289509111027
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abstract::The most common complication of zoster in the elderly is postherpetic neuralgia, operationally defined as pain persisting longer than 1-2 months after rash. The cause of postherpetic neuralgia is unknown. Using polymerase chain reaction, we detected varicella zoster virus DNA in blood mononuclear cells from 11 of 51 p...
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doi:10.3109/13550289509111018
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abstract::We aimed to test the hypothesis that brain large artery diameters relate to distal downstream arteriolar diameters. In a sample of 110 autopsied individuals (69% men, 76% HIV+, mean age 51), we used multilevel models to relate large artery lumen and lumen-to-wall ratio to left frontal lobe arteriolar lumen and lumen-t...
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abstract::The objective of this study is to describe the chronic pain characteristics in individuals infected with human T cell lymphotropic virus type 1 (HTLV-1) per subgroup (asymptomatic, oligosymptomatic, and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP)) compared with controls with chronic pain withou...
journal_title:Journal of neurovirology
pub_type: 杂志文章
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更新日期:2021-01-06 00:00:00
abstract::HIV-associated neurocognitive disorders (HAND) continues to be prevalent (30-50%) despite plasma HIV-RNA suppression with combination antiretroviral therapy (cART). There is no proven therapy for individuals on suppressive cART with HAND. We have shown that the degree of HIV reservoir burden (HIV DNA) in monocytes app...
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pub_type: 杂志文章
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