Effects of Lecithinized SOD on Sequential Change in SOD Activity after Cerebral Contusion in Rats

Masatoshi Yunoki, M. Kawauchi, N. Ukita, Y. Noguchi, S. Nishio, Y. Ono, S. Asari, T. Ohmoto, Masato Asanuma, N. Ogawa

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

To analyze the effect of lecithinized superoxide dismutase (SOD) on superoxide accumulation after traumatic brain injury (TBI) in rats, we studied the SOD activity by NBT-reducing method and the expression of Cu,Zn-SOD mRNA by Northern blot analysis. As determined by the specific gravity method, the administration of lecithinized SOD decreased brain edema in the periphery of the lesion at 6hr after contusion. SOD activity, without lecithinized SOD administration, increased at the peripheral portion at 30min after contusion, but decreased to the normal level at 6hr after TBI. By administration of lecithinized SOD, the increase of SOD activity was preserved until 6hr after TBI. The expression of Cu,Zn-SOD mRNA increased in the core lesion, peripheral portion, and contralateral hemisphere until 6hr after TBI, then was suppressed in all three areas by lecithinized SOD. These results support the hypothesis that superoxide anions may play an important role in the development of brain edema after TBI, and that leciyhinized SOD appears to prevent brain edema through a protective effect against superoxide anions.

Original languageEnglish
Pages (from-to)142-145
Number of pages4
JournalActa Neurochirurgica, Supplementum
Volume1998
Issue numberSUPPL. 71
Publication statusPublished - 1998

Fingerprint

Superoxide Dismutase
Brain Edema
Superoxides
Contusions
Messenger RNA
Specific Gravity
Northern Blotting
lecithinized superoxide dismutase
Brain Contusion
Traumatic Brain Injury
Superoxide Dismutase-1

Keywords

  • Brain edema
  • Cerebral contusion
  • SOD

ASJC Scopus subject areas

  • Medicine(all)
  • Clinical Neurology

Cite this

Yunoki, M., Kawauchi, M., Ukita, N., Noguchi, Y., Nishio, S., Ono, Y., ... Ogawa, N. (1998). Effects of Lecithinized SOD on Sequential Change in SOD Activity after Cerebral Contusion in Rats. Acta Neurochirurgica, Supplementum, 1998(SUPPL. 71), 142-145.

Effects of Lecithinized SOD on Sequential Change in SOD Activity after Cerebral Contusion in Rats. / Yunoki, Masatoshi; Kawauchi, M.; Ukita, N.; Noguchi, Y.; Nishio, S.; Ono, Y.; Asari, S.; Ohmoto, T.; Asanuma, Masato; Ogawa, N.

In: Acta Neurochirurgica, Supplementum, Vol. 1998, No. SUPPL. 71, 1998, p. 142-145.

Research output: Contribution to journalArticle

Yunoki, M, Kawauchi, M, Ukita, N, Noguchi, Y, Nishio, S, Ono, Y, Asari, S, Ohmoto, T, Asanuma, M & Ogawa, N 1998, 'Effects of Lecithinized SOD on Sequential Change in SOD Activity after Cerebral Contusion in Rats', Acta Neurochirurgica, Supplementum, vol. 1998, no. SUPPL. 71, pp. 142-145.
Yunoki M, Kawauchi M, Ukita N, Noguchi Y, Nishio S, Ono Y et al. Effects of Lecithinized SOD on Sequential Change in SOD Activity after Cerebral Contusion in Rats. Acta Neurochirurgica, Supplementum. 1998;1998(SUPPL. 71):142-145.
Yunoki, Masatoshi ; Kawauchi, M. ; Ukita, N. ; Noguchi, Y. ; Nishio, S. ; Ono, Y. ; Asari, S. ; Ohmoto, T. ; Asanuma, Masato ; Ogawa, N. / Effects of Lecithinized SOD on Sequential Change in SOD Activity after Cerebral Contusion in Rats. In: Acta Neurochirurgica, Supplementum. 1998 ; Vol. 1998, No. SUPPL. 71. pp. 142-145.
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