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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Cytokine production in cerebrospinal fluid after subarachnoid haemorrhage.

Pathophysiological mechanisms for vasospasm after subarachnoid haemorrhage (SAH) remain unclear and, so far, roles of cytokines in vasospasm have not been known. In the present study, we measured interleukin-1 alpha (IL-1 alpha), interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumour necrosis factor-alpha (TNF-alpha) concentrations in the cerebrospinal fluid (CSF) of patients with subarachnoid haemorrhage (SAH). ELISA assay were performed on 21 CSF samples from 7 patients with SAH and on 4 sera samples. Both IL-6 and IL-8 were detected in all CSF samples, but IL-1 alpha, IL-1 beta, and TNF-alpha were not detected. IL-6 and IL-8 were also detected in sera, but at much lower concentrations. This study indicates that IL-6 and IL-8 may play roles as immunomodulators in patients with SAH. In addition, it has been reported that IL-6 inhibits prostaglandin I2 production and increases the mRNA level of c-sis gene, suggesting that IL-6 may play an important role in vasospasm as vasoconstrictor.[1]

References

  1. Cytokine production in cerebrospinal fluid after subarachnoid haemorrhage. Kikuchi, T., Okuda, Y., Kaito, N., Abe, T. Neurol. Res. (1995) [Pubmed]
 
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