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2-Acetyl-4-(1R,2S,3R,4-tetrahydroxybutyl)-imidazole (THI) is an inhibitor of sphingosine-1-phosphate lyase (S1P lyase). In high doses it leads to the inhibition of S1P lyase, causing an accumulation of sphingosine-1-phosphate and a decrease in the activity of sphingosine-1-phosphate receptor-1. This results in lymphopenia (depression of blood lymphocyte counts) as well as an immune deficiency.1 THI does not appear to have any toxic effects and may therefore be valuable as an immunosuppressive drug. Diabetes can occur spontaneously due to autoimmune insulitis and THI has been proposed as a possible treatment for the prevention of this disease.2 It is thought that THI and Pyridoxine (vitamin B6) may compete for the same binding site as an additional diet of pyridoxine can prevent the decrease of blood lymphocyte counts caused by THI. THI has a structural similarity to histamine and urocanic acid, both known to have immunosuppressive properties.3 THI is a minor component of the food additive caramel color III.

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名称: 深圳市明博林生物科技有限公司
税务登记号 9144030055718808X9
地址: 深圳市龙岗区布吉大芬村茂业城怡和楼2座8A
电话: 0755-25106053
开户银行: 中国工商银行深圳红宝支行
账号: 4000024839200103206

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