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Journal ArticleDOI

The immunology of acute stroke.

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TLDR
The multifaceted role of the immune system in the pathophysiology of acute stroke is discussed, with increased incidence of infections observed after acute stroke, and might result from activation of long-distance feedback loops between the CNS and peripheral immune organs.
Abstract
Recent clinical and experimental studies have highlighted a complex role for the immune system in the pathophysiological changes that occur after acute stroke. Sensors of the innate immune system such as Toll-like receptors, or effectors such as the lectin pathway of complement activation and innate immune cells, are activated by brain ischaemia and tissue damage, leading to amplification of the inflammatory cascade. Activation of the adaptive arm of the immune system, mediated by lymphocyte populations including T and B cells, regulatory T cells, and γδT cells, in response to stroke can lead to deleterious antigen-specific autoreactive responses but can also have cytoprotective effects. Increased incidence of infections is observed after acute stroke, and might result from activation of long-distance feedback loops between the CNS and peripheral immune organs, which are thought to play a part in stroke-induced immunodepression. Ongoing clinical trials are investigating whether the preventive use of antibiotics improves functional outcome after stroke. This Review discusses the multifaceted role of the immune system in the pathophysiology of acute stroke.

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Citations
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Pathogenic mechanisms following ischemic stroke

TL;DR: The underlying pathophysiology of ischemic stroke is reviewed and the intertwined pathways that are promising therapeutic targets are revealed, leading to the development of numerous agents that target various injury pathways.
References
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Central nervous system injuryinduced immune deficiency syndrome

TL;DR: Understanding CIDS will allow us to work on developing effective therapeutic strategies, with which the outcome after CNS damage by a host of diseases could be improved by eliminating a major determinant of poor recovery.
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Urinary tract infection and bacteriurua in stroke patients: frequencies, pathogen microorganisms, and risk factors.

TL;DR: Early treatment of urinary dysfunction for elimination of indwelling catheter use and high postvoid residue, early physical rehabilitation for better ambulation and hand function, patient education about prevention, and close monitoring of patients with unmodifiable risk factors may decrease the frequency of urinary tract infections and significant bacteriuria in stroke patients.
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The impact of lesion location and lesion size on poststroke infection frequency

TL;DR: Lesion size is an independent risk factor for the development of poststroke infection, and the left anterior cerebral artery territory was associated with pneumonia.
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Preventive antibiotics in stroke study: rationale and protocol for a randomised trial.

TL;DR: Whether the preventive use of the antibiotic ceftriaxone improves functional outcome in patients with stroke is investigated to determine whether the effect of antibiotic prophylaxis on clinical outcomes is improved.
Journal ArticleDOI

Sensitization and Tolerization to Brain Antigens in Stroke

TL;DR: Data suggest that the immune response can be manipulated in an antigen specific fashion to improve stroke outcome and argue that the nature of the post-ischemic immune response influences neurological recovery from stroke.
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