• Neurol Neurochir Pol · Jul 2005

    [Changes of protein S100B serum concentration during ischemic and hemorrhagic stroke in relation to the volume of stroke lesion].

    • Arkadiusz Weglewski, Danuta Ryglewicz, Anna Mular, and Jacek Juryńczyk.
    • Oddział Neurologii, Szpital Wojewódzki im. Jana Pawła II, ul. Czapliniecka 123, 97-400 Bełchatów. awegl@poczta.onet.pl
    • Neurol Neurochir Pol. 2005 Jul 1;39(4):310-7.

    Background And PurposeBiochemical markers offer a new strategy in the diagnosis, estimation of clinical prognosis and monitoring of treatment in patients with brain damage. At present, two specific brain originated proteins play a major role: S100B protein and neuron-specific enolase (NSE). S100B comes from astrocytes and NSE has been found in neuronal cytoplasm. The aim of this study was to evaluate dynamics of protein S100B level changes in blood in stroke patients.Material And MethodsThe material consisted of 67 patients, 53 with ischemic stroke (mean age 67.7) and 14 with hemorrhagic stroke (mean age 66.7). The diagnosis of stroke was made on the basis of clinical symptoms and computed tomography (CT). Plasma concentration of S100B was measured using the immunoluminometric test (Lia-Mat Sangtec 100(R)) on the 1st, 3rd, 7th and 14th day after stroke onset.ResultsThe highest levels of protein S100B were found in ischemic stroke predominantly on the 3rd day and in hemorrhagic stroke on the 1st day. The concentrations of protein S100B were similar in ischemic and hemorrhagic stroke on the 3rd, 7th and 14th day but they were significantly higher on the 1st day in hemorrhagic stroke. Serum levels of protein S100B after stroke onset have shown a correlation with infarct volume, especially in patients with large or medium stroke. In small stroke lesions, concentrations of protein S100B were under the cut-off level. In hemorrhagic stroke protein S100B levels were higher in patients with midline shift visible in brain CT, but the differences were not significant.ConclusionsIschemic and hemorrhagic strokes lead to release of protein S100B into the blood. A good correlation between the release pattern of S100B and volume of vascular lesion has been found. S100B protein is the marker of brain damage during stroke. It is possible to use protein S100B measurements in monitoring the stroke treatment.

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