Related Experiment Video
Updated: Aug 10, 2026

10:50
Visualizing Impairment of the Endothelial and Glial Barriers of the Neurovascular Unit during Experimental Autoimmune Encephalomyelitis In Vivo
Published on: March 26, 2019
Vasculitis of the central nervous system
1Department of Neurology, University of Pittsburgh, 3471 Fifth Avenue, Suite 811, Pittsburgh, PA 15213, USA.
Current Rheumatology Reports
|December 21, 2000
Summary
Central nervous system (CNS) vasculitis involves brain inflammation and can present with varied symptoms. Accurate diagnosis and managing inflammation are key to improving patient outcomes and recovery.
Area of Science:
- Neurology
- Immunology
- Pathology
Background:
- Central nervous system (CNS) vasculitis encompasses diverse conditions, including giant cell arteritis and infection-related vasculitis.
- Neurologic symptoms can be the initial presentation of systemic vasculitides.
- Isolated CNS vasculitis requires differentiation from other inflammatory and non-inflammatory vascular conditions.
Purpose of the Study:
- To elucidate the cellular mechanisms underlying vascular inflammation in the brain.
- To understand how local and systemic inflammatory consequences contribute to CNS vasculitis pathogenesis and recovery.
- To address challenges in diagnostic accuracy and minimizing long-term damage.
Main Methods:
- Review of clinical presentations and diagnostic criteria for CNS vasculitis.
- Analysis of histologic features and their correlation with clinical manifestations.
- Investigation of local inflammatory effects (coagulation, vasomotor tone) and systemic pathways (noradrenergic, trigeminovascular, HPA axis).
Main Results:
- Clinical manifestations are influenced by inflammatory infiltrate characteristics and vessel size.
- Local factors like increased coagulation and altered vasomotor tone play a role.
- Systemic factors, including the activation of specific neuro-neuroendocrine axes, are implicated in disease pathogenesis and recovery.
Conclusions:
- Understanding the cellular and molecular mechanisms of CNS vasculitis is crucial.
- Improving diagnostic accuracy, including identifying infectious etiologies, remains a priority.
- Minimizing both disease-related and therapy-related long-term damage is essential for patient management.
Related Concept Videos
Vascular Spasm
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
Viral Meningitis
Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
Encephalitis l: Introduction
Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...

