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Compound 48/80 causes oxidative stress in the adrenal gland of rats through mast cell degranulation
Shingo Kaida1, Yoshiji Ohta, Yoichiro Imai
1Department of Anesthesiology, 2nd Teaching Hospital, Fujita Health University School of Medicine, Nagoya, Aichi 454-0012, Japan.
Abstract:
Rats were intraperitoneally treated once with compound 48/80 (C48/80), a mast cell degranulator, (0.75 mg/kg). Serum serotonin, histamine and corticosterone levels increased 0.5 h after C48/80 treatment, but their increases were reduced thereafter. Adrenal total ascorbic acid (ascorbic acid plus dehydroascorbic acid), ascorbic acid and dehydroascorbic acid levels decreased 0.5, 3 or 6 h after C48/80 treatment, adrenal lipid peroxide level increased at 3 and 6 h, adrenal non-protein-SH level decreased at 3 and 6 h and adrenal beta-tocopherol level decreased at 3 h. Ketotifen, a mast cell stabilizer (1 mg/kg) administered intraperitoneally at 0.5 h before C48/80 treatment, attenuated all these changes found in the serum and adrenal at 3 h after treatment, while beta-tocopherol (250 mg/kg), administered orally at 0.5 h after C48/80 treatment, attenuated all these changes in the adrenal tissue. These results indicate that C48/80 causes oxidative stress in rat adrenal gland through mast cell degranulation.
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