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Microvascular damage following experimental sinus-vein thrombosis in rats

Abstract

We evaluated effects of thrombosis of the superior sagittal sinus, its bridging and cortical veins (SVT) on the cerebral microvasculature in rats. Cryosections of brains (n=7) were examined for venous infarction and microvascular basal lamina damage 3 h after SVT by immunohistochemical staining of microtubule-associated protein 2 and collagen type IV. Microvessels in the infarctions showed a decrease in the number (23.5±6.1%, P<0.002) and the total area (24.9±6.5%, P<0.011) of collagen type IV-positive vessels in contrast to control areas (21.7±12.4%, P<0.007; and 26.3±15.1%, P<0.026 in contrast to control areas of unoperated animals). This study showed a significant alteration of the cerebral microvasculature in SVT, which might contribute to edema and hemorrhagic transformation.

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Acknowledgments

This work was supported by the German Academic Exchange Service (DAAD Scholarship), a Marie-Curie fellowship (M.R.V.); and by the German Research Foundation: DFG RoII 54/4–1 (J.R.). The authors are grateful to Mrs. Judy Benson for editing the manuscript.

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Correspondence to G. F. Hamann.

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Vosko, M.R., Röther, J., Friedl, B. et al. Microvascular damage following experimental sinus-vein thrombosis in rats. Acta Neuropathol 106, 501–505 (2003). https://doi.org/10.1007/s00401-003-0755-5

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  • DOI: https://doi.org/10.1007/s00401-003-0755-5

Keywords

  • Brain infarct
  • Basal lamina damage
  • Immunohistochemistry