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Effect of ginseng pretreatment on cerebral glucose metabolism in ischaemic rats using animal positron emission tomography (PET) and [18F]-FDG

✍ Scribed by Seok Rye Choi; Yasuhiro Magata; Hideo Saji; Ken Tajima; Haruhiro Kitano; Junji Konishi; Akira Yokoyama

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
104 KB
Volume
11
Category
Article
ISSN
0951-418X

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✦ Synopsis

To investigate the effect of ginseng on damaged brain activity, we evaluated the cerebral metabolic rate of glucose (CMRglc) as a functional index in post-ischaemic rats and compared the results with those obtained after the administration of a ginseng extract. CMRglc was measured using high resolution animal positron emission tomography with 18 F-2-fluoro-2-deoxy-D-glucose ( 18 F-FDG).

The rats subjected to a 30-min occlusion showed a significant reduction of k3, the rate constant for phosphorylation of 18 F-FDG by hexokinase, compared with the normal value. The ginseng pretreatment prevented the reduction in k3 and CMRglc caused by ischaemia. Although further investigation is needed to elucidate the mechanism of action, ginseng may be useful for prevention and treatment of ischaemia.

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