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Cerebral blood flow and histopathological changes following permanent bilateral carotid artery ligation in Wistar rats

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Summary

Cerebral blood flow and histopathological changes after bilateral carotid artery ligation (BCAL) in Wistar rats were studied. Eight of the 38 rats (21%) died within one week. In the 30 survivors, the incidence of histopathological change was 90% in the caudate nucleus, 23% in the cortex, 30% in the hippocampus, and 0% in the other structures. Local cerebral blood flow (LCBF) was measured using the quantitative autoradiographic 14C-iodoantipyrine technique in 24 anatomically discrete regions of the brain. BCAL induced ischemia in the entire forebrain. The percent reduction of LCBF was between 25–94% of the control at 2.5 h after BCAL. LCBF tended to recover 1 week after BCAL except for the regions of neuronal damage. These results suggest that neuronal damage does not correlate with the flow rate. In the present study, selective neuronal damage was also observed in rats with chronic cerebral ischemia.

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Correspondence to Kazuhiro Sako.

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Tsuchiya, M., Sako, K., Yura, S. et al. Cerebral blood flow and histopathological changes following permanent bilateral carotid artery ligation in Wistar rats. Exp Brain Res 89, 87–92 (1992). https://doi.org/10.1007/BF00229004

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Key words

  • Autoradiography
  • Cerebral blood flow
  • Cerebral ischemia
  • Iodoantipyrine
  • Rat