Effect of thrombin injection on cerebral vascular in rats with subarachnoid hemorrhage. Issue 7 (July 2019)

• Record Type: Journal Article
• Authors: Li, Gang; Wang, Qingsong; Lin, Tingting; Liu, Chengye
• Is Part Of: Journal of international medical research. Volume 47:Issue 7(2019)
• Page Start: 2819
• Page End: 2831
• Publication Date: 2019-07
• Subjects: Thrombin -- subarachnoid hemorrhage -- cerebral vascular spasm -- cerebrovascular damage -- basilar artery -- proteinase-activated receptor -- tumor necrosis factor-α; Medicine -- Periodicals; Pharmacology -- Periodicals; 610.5
• DOI: 10.1177/0300060519851353
• Languages: English
• ISSNs: 0300-0605

Abstract

Objective: To evaluate the effect of thrombin (TM) injection via the cerebellomedullary cistern on cerebral vessels in rats with subarachnoid hemorrhage (SAH). Methods: Eighteen rats were randomly divided into three groups. In the A1 group, physiological saline was injected via the cerebellomedullary cistern; in the A2 group, 3 U of TM was injected into the subarachnoid space; and in the A3 group, SAH models were established and 3 U of TM was injected with the first injection of whole blood. Three days later, basilar artery specimens were collected for pathological examination. Results: The basilar arterial lumen cross-sectional area was significantly smaller in the A2 versus the A1 group, and proteinase-activated receptor (PAR)-1 and tumor necrosis factor (TNF)-α average optical densities were significantly higher (all P < 0.05). Basilar arterial lumen cross-sectional areas were significantly smaller in the A3 than the A2 group and average TNF-α optical densities were significantly lower (both P < 0.05), while those of PAR-1 did not differ significantly. Conclusions: There was no significant difference in the extent of cerebral vasospasm between SAH and non-SAH model groups following TM injection into the subarachnoid space, so TM was considered to be an independent factor affecting cerebral vasospasm.