甲状腺激素类似物的展望

五、甲状腺激素类似物的展望

综上所述,针对STRM的发展历程,目前开发的制剂情况见表60-2,虽然将STRMs作为长期治疗血脂异常或代谢性疾病,将是困难的,而且可能是不明智的,但这类配体仍显示出预期的有益效果。因此,在需要重点调节TH信号传导途径的情况下,该配体类似物的用途即可体现。比如STRMs将可能是最有效的短期治疗病态肥胖患者的药物。基于临床前动物研究,预测GC-1肝外效应能诱导人类的脂肪燃烧,并且体重减轻显著,所需的治疗持续时间应当足够短,以避免有害的副作用。研究者已经能够安全地控制啮齿动物的GC-1依赖性体重减轻时间长达60d,并已在几个不同的肥胖小鼠模型使用GC-1,可有效地使体重正常化。在ob/ob小鼠高脂饮食诱导肥胖模型研究中,予以GC-1应用3~4周,可使总体脂肪减少达20%,而同一时期未处理的对照组小鼠脂肪却有5%的增加[49]。针对无法通过其他方法减重的患者,在密切监测其体温和其他有害作用的情况下,予以这样的干预或许也是一个选择。

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