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实验观察了茶多酚（TP）对重复+10Gz作用下大鼠大脑皮层线粒体脂质过氧化反应、血脑屏障通透性、大脑皮层线粒体三磷酸腺音（ATP）酶活性和ATP含量的影响。结果表明，TP明显抑制+Gz应激鼠大脑皮层线粒体丙二醛（MDA）的生成，但对脑超氧化物歧化酶（SOD）和硒谷胱甘肽过氧化物酶（SeGSHpx）活性无明显影响。通过测定+Gz暴露后鼠脑对静脉注射伊文氏蓝（Evan’sblue）的通透性，说明TP对+Gz引起的血脑屏障损伤有明显保护作用。此外，TP还明显提高+Gz应激鼠大脑皮层线粒体ATP酶活性和大脑皮层ATP含量。以上结果说明，天然抗氧化剂TP对+Gz引起的脑损伤有明显保护作用。
Effects of tea polyphenols (TP) on mitochondrial lipid peroxidation, blood-brain barrier permeability, mitochondrial ATPase activity and ATP content in rat cerebral cortex under repeated +10 Gz treatment . The results showed that TP significantly inhibited the formation of malondialdehyde (MDA) in the mitochondria of + Gz stress-induced cortex, but had no significant effect on the activity of superoxide dismutase (SOD) and selenium glutathione peroxidase (SeGSHpx) influences. By measuring the permeability of Evan’sblue in mice brain after intravenous injection of + Gz exposure, it is found that TP has obvious protective effect on + Gz-induced damage of the blood-brain barrier. In addition, TP also significantly increased mitochondrial ATPase activity and cerebral cortex ATP content in + Gz stress-induced cortex. The above results show that the natural antioxidant TP has a significant protective effect on + Gz-induced brain injury.