Chronic Active Ebv
Chronic Active Ebv - Related Videos
03:14
Phenotyping EBV-Infected Cell Lines Using Flow Cytometry
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2026
Source: Xu, C., et al. An Efficient and Simple Method to Establish NK and T Cell Lines from Patients with Chronic Active Epstein-Barr Virus Infection. J. Vis. Exp. (2018).This video demonstrates the phenotyping of EBV-infected T and NK cell lines using flow cytometry, highlighting the preparation, antibody staining, and analysis steps to identify lineage-specific surface markers. It shows how marker profiles confirm distinct T-cell and NK-cell populations.
07:17
Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice
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Cited by 1 •
2016
Here, we describe a protocol to analyze the phenotype of regulatory T (Treg) cells isolated from naïve and chronic lymphocytic choriomeningitis virus-infected mice. In addition, we provide a process to evaluate the suppressive activity of the Treg cells.
08:26
Surgical Implantation of Chronic Neural Electrodes for Recording Single Unit Activity and Electrocorticographic Signals
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Cited by 34 •
2012
We provide useful information for surgeons who are learning the process of implanting chronic neural recording electrodes. Techniques for both penetrating and surface electrode systems are described in a rodent animal model.
00:08
Non-invasive Strategies for Chronic Manipulation of DREADD-controlled Neuronal Activity
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Cited by 39 •
2019
Here we describe two non-invasive methods to chronically control neuronal activity using chemogenetics in mice. Eye-drops were used to deliver clozapine-N-oxide (CNO) daily. We also describe two methods for prolonged administration of CNO in drinking water. These strategies for chronic neuronal control require minimal intervention reducing animals’ stress.
06:44
Demonstration of Cutaneous Allodynia in Association with Chronic Pelvic Pain
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Cited by 22 •
2009
A demonstration of the bedside test for cutaneous allodynia and its clinical implications.
FAQs
The central problem is failed immune containment. When EBV-infected T cells or natural killer cells expand rather than remain controlled, they can infiltrate tissues and sustain cytokine signaling. This inflammatory activity connects viral persistence with fever, lymphadenopathy, hepatitis, splenomegaly, and cytopenias, making the disorder a useful model for studying how immune dysregulation converts infection into progressive tissue injury.
Routine latency does not ordinarily produce the persistent, progressive inflammatory pattern described here. In chronic active disease, high EBV levels accompany expansion of infected T or natural killer cells and organ infiltration. The distinction therefore depends on the combination of viral burden, affected cell population, clinical inflammation, and tissue injury rather than evidence of EBV exposure alone.
Sustained cytokine signaling provides a mechanistic link between infected-cell expansion and systemic illness. It can maintain inflammation while infiltrating cells injure organs, helping explain fever, hepatitis, enlarged lymphoid organs, and low blood-cell counts. In immunology research, this relationship highlights how an antiviral response that fails to resolve can become a driver of disease progression.
Evaluation combines clinical findings with quantitative EBV DNA testing, identification of infected cell populations, and tissue evaluation. Symptoms such as fever, lymphadenopathy, hepatosplenomegaly, hepatitis, and cytopenias establish the systemic context, while viral measurement and tissue studies help connect disease activity with infected-cell expansion and organ involvement.
Identifying the infected population clarifies which cells are expanding and links the viral signal to the underlying immune abnormality. Finding EBV-infected T or natural killer cells supports a lymphoproliferative mechanism, while tissue evaluation can show organ involvement. Together with quantitative DNA testing, these findings provide a more informative picture than viral burden considered in isolation.
Early recognition supports continued assessment of organ damage and disease progression. Because chronic active EBV can produce systemic inflammation, tissue injury, and cytopenias, monitoring helps characterize changing clinical involvement. The combined clinical and laboratory picture can also help guide definitive treatment decisions, including consideration of hematopoietic stem cell transplantation in the appropriate context.
The disorder provides a human model for examining three connected problems: viral persistence, immune dysregulation, and lymphoproliferative disease. Its combination of high EBV levels, infected-cell expansion, cytokine signaling, and organ injury allows investigators to study how inadequate immune control shapes disease. These observations also connect infection biology with mechanisms of progressive inflammatory and tissue pathology.