Biomedicine & Pharmacotherapy (Apr 2023)

Recovery of neurosurgical high-frequency electroporation injury in the canine brain can be accelerated by 7,8-dihydroxyflavone

  • Gang Sun,
  • Cheng-Hsien Lin,
  • Guiping Mei,
  • Jia Gu,
  • Sheng-Fang Fan,
  • Xiaohong Liu,
  • Ruoxu Liu,
  • Xun-Wei Liu,
  • Xiao-Sen Chen,
  • Cheng Zhou,
  • Xueqing Yi,
  • Peng Jin,
  • Ching-Ping Chang,
  • Xiao-Jing Lin

Journal volume & issue
Vol. 160
p. 114372

Abstract

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Background: Although traumatic brain injury (TBI) occurs in a very short time, the biological consequence of a TBI, such as Alzheimer’s disease, may last a lifetime. To date, effective interventions are not available to improve recovery from a TBI. Herein we aimed to ascertain whether recovery of neurosurgical high-frequency irreversible electroporation (HFIRE) injury in brain tissues can be accelerated by 7,8-dihydroxyflavone (7,8-DHF). Methods: The HFIRE injury was induced in the right parietal cortex of 8 adult healthy and neurologically intact male dogs. Two weeks before HFIRE injury, each dog was administered orally with or without 7,8-DHF (30 mg/kg) once daily for consecutive 2 weeks (n = 4 for each group). The values of blood-brain barrier (BBB) disruption, brain edema, and cerebral infarction volumes were measured. The concentrations of beta-amyloid, interleukin-1β, interleukin-6 and tumor necrosis factor-α in the cerebrospinal fluid were measured biochemically. Results: The BBB disruption, brain edema, infarction volumes, and maximal cross-section area caused by HFIRE injury in canine brain were significantly attenuated by 7,8-DHF therapy (P < 0.0001). Additionally, 7,8-DHF significantly reduced the HFIRE-induced cerebral overproduction of beta-amyloid and proinflammatory cytokines in the cerebrospinal fluid (P < 0.0001) in dogs with HFIRE. Conclusions: Recovery of neurosurgical HFIRE injury in canine brain tissues can be accelerated by 7,8-DHT via ameliorating BBB disruption as well as cerebral overproduction of both beta-amyloid and proinflammatory cytokines.

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