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Abstract: Huperzine B protects rat pheochromocytoma cells against oxygen-glucose deprivation-induced injury

  [ 16 votes ]   [ Discuss This Article ]
www.ProHealth.com • October 16, 2003


Acta Pharmacol Sin. 2002 Dec;23(12):1193-8.  Wang ZF, Zhou J, Tang XC.  State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.

AIM: To test the ability of huperzine B (HupB) to alleviate injury from oxygen-glucose deprivation (OGD) in the rat pheochromocytoma line PC12 cells.

METHODS: After OGD for 3 h and reoxygenation for 24 h, neuronal morphology was observed by phase-contrast microscopy; cell survival was quantified by the reduction of MTT; malondialdehyde (MDA) was determined by the thiobarbituric acid; superoxide dismutase (SOD) was assayed by a modification of the xanthine/xanthine oxidase; and lactate (LA) was measured according to Marbach and Weil.

RESULTS: OGD for 3 h and reoxygenation for 24 h triggered death in nearly 70 % of cells, along with major changes in morphology and biochemistry including elevated level of MDA, SOD activity, and LA content. Cells pretreated with HupB 1-100 micromol/L for 2 h showed significantly improved survival and reduced biochemical and morphologic signs of toxicity.

CONCLUSION: HupB protected PC12 cells against OGD-induced injury, most likely by alleviating disturbances of oxidative and energy metabolism.

PMID: 12466060 [PubMed - in process]




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