盐酸Carteolol保护人类角膜上皮细胞体外UVB-induced损害。
文章的细节
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引用
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Kuwahara K, Oizumi N,藤泽年代,Tanito M, Ohira
盐酸Carteolol保护人类角膜上皮细胞体外UVB-induced损害。
角膜。2005年3月,24 (2):213 - 20。
- PubMed ID
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15725891 (在PubMed]
- 文摘
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目的:探讨盐酸carteolol是否有保护作用对紫外线B (UVB)全身损害人类角膜上皮细胞(HCECs)。方法:培养HCECs暴露在单一剂量UVB 300 mJ /厘米,和细胞生存能力是衡量UVB照射后12小时使用细胞计数工具。测试样品在0.01 - -1.0更易与L (carteolol盐酸盐、马来酸timolol盐酸倍他洛尔,levobunolol盐酸,或nipradilol)被添加到HCECs之前,期间或之后UVB照射。紫外吸收光谱为每个药物使用分光光度法测定样品。双氧水(过氧化氢)和盐酸carteolol同时添加到HCECs 10分钟,12小时后细胞生存能力测量。的能力carteolol盐酸清除超氧阴离子(O2)和单线态氧(O2)调查使用MCLA化学发光方法。结果:UVB照射下降的数量可行HCECs剂量依赖性的方式。盐酸Carteolol 1更易与L减毒UVB-induced细胞损伤时添加之前,期间或之后UVB照射(P < 0.01)。Levobunolol盐酸1更易/ L (P < 0.01)期间或之后添加辐照和马来酸timolol 0.1更易/ L或更高(P < 0.05)辐照中加入减毒UVB-induced细胞损伤。盐酸倍他洛尔和nipradilol没有效果。 The UV absorption spectra of timolol maleate and levobunolol hydrochloride overlapped with the UVB wavelength spectrum, while carteolol hydrochloride, betaxolol hydrochloride, and nipradilol showed a partial overlap. Carteolol hydrochloride at 1 mmol/L (P<0.05) significantly inhibited H2O2-induced cell damage and was able to scavenge O2 (EC50 value: 48 mmol/L). CONCLUSIONS: These data strongly suggest that carteolol hydrochloride has a protective action against UVB-induced HCEC damage, and its radical scavenging ability may be an important basis for this effect.
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