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资料包括: 论文(5页3836字)
说明:
摘 要 磷酸戊糖途径在所有动物心脏中的发育都是不好的。心肌缺血之后重新灌流时,其心肌ATP水平要经过好几天才能恢复到正常水平。文章综述了核糖溶液灌注心肌细胞,可明显提高ATP的恢复速度,促进ATP合成,改善心脏功能。文章还就核糖的临床应用作了阐述。
关键词: 核糖,磷酸戊糖途径,心脏功能
Effect of Ribose on Protecting Global Heart Function
D-核糖(D-Ribose)是自然界存在的一种五碳醛糖,于1909年首先为莱文(Levene)和雅各布斯(Jacobs)所鉴定。五十年代后采用以葡萄糖为原料的有机合成法或由核苷水解法生产,八十年代国外开始用发酵法生产。现在,发酵法已达到很高的水平,为今后探索核糖新用途创造了条件[1,2]。
以前D-核糖主要用作合成维生素B2的原料,近年来又报道可用于合成抗病毒、抗肿瘤核苷类药物。此外,它本身还可用于治疗心脏局部缺血,提高心脏耐受缺血的能力,改善心脏的总体功能;治疗运动引起的肌肉酸痛,腺苷酸脱氨酶缺陷造成的僵硬,以及胞内缺乏磷酸化酶造成的肌肉疼痛等[3]。下面主要介绍核糖在保护心脏功能中的作用。
目录:
1 磷酸戊糖途径的生理功能
2 心肌的磷酸戊糖途径
3 使用核糖改善试验动物的心脏功能
4 应用核糖的临床经验
5 核糖与药物或核苷酸前体联合应用
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