The rise of soluble platelet-derived growth factor receptor β in CSF early after subarachnoid hemorrhage correlates with cerebral vasospasm

AbstractPlatelet-derived growth factor β (PDGFβ) has been proposed to contribute to the development of cerebral vasospasm (CVS) after subarachnoid hemorrhage (SAH), and soluble PDGFRβ (sPDGFRβ) is considered to be an inhibitor of PDGF signaling. We aimed at determining the sPDGFRβ concentrations in the cerebrospinal fluid (CSF) of p atients with aneurysmal SAH (aSAH) and analyzing the relationship between sPDGFRβ level and CVS. CSF was sampled from 32 patients who suffered aSAH and five normal controls. Enzyme-linked immunosorbent assay was performed to determine the sPDGFRβ concentrations in the CSF. Functional outcome was a ssessed using modified Rankin scale (mRS) at 6 months after aSAH. CVS was identified using transcranial Doppler or angio-CT or DSA. The cutoff of sPDGFRβ for CVS was defined on the ROC curve. The concentrations of sPDGFRβ following aSAH were both higher than those of normal controls on days 1–3 and 4–6, and peaked on days 7–9 post-SAH. The cutoff value of sPDGFRβ level on days 1–3 for CVS was defined as 975.38 pg/ml according to the ROC curve (AUC = 0.680,p = 0.082). In addition, CSF sPDGFRβ concentrations correlated with CVS (r = 0.416,p = 0.018), and multivariate analysis indicated that sPDGFRβ level higher than 975.38 pg/ml on days 1–3 was an independent predictor of CVS (p = 0.001, OR = 19.22, 95% CI: 3.27–113.03), but not for unfavorable outcome after aSAH in the current study. CSF sPDGFRβ level in...
Source: Neurological Sciences - Category: Neurology Source Type: research