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血糖过高的遗传原因和糖尿病治疗的反应
Ewan R Pearson1, Bryan J Starkey, Roy J Powell
1Diabetes and Vascular Medicine, Peninsula Medical School, Exeter, UK.
Lancet (London, England)
|October 25, 2003
概括
患有HNF-1alpha糖尿病的患者对硫基尿素药物 (如糖胺) 的敏感性显著增加,与甲福明或2型糖尿病相比. 这凸显了高血糖的遗传原因如何影响药物反应和患者管理.
科学领域:
- 药物遗传学 药物遗传学
- 内分泌学 在内分泌学.
- 代谢疾病 代谢疾病
背景情况:
- 2型糖尿病呈现异质性,对糖尿病病因如何影响口服低血糖治疗反应的理解有限.
- 肝细胞核因子1alpha (HNF-1alpha) 基因突变可能导致糖尿病,一些患者对硫氨酸尿素敏感.
研究的目的:
- 为了比较HNF-1alpha糖尿病患者与2型糖尿病患者对gliclazide (一种硫氨酸urea) 和metformin (一种biguanide) 的血糖反应.
- 调查不同硫基尿素敏感性的潜在机制.
主要方法:
- 一个随机交叉试验,涉及36名HNF-1alpha糖尿病或2型糖尿病患者,匹配BMI和禁食血葡萄糖.
- 主要结局: 降低空腹血葡萄糖. 二次评估包括胰岛素敏感性,胰岛素分泌和托尔布胺清除.
主要成果:
- 与甲福明相比,HNF-1alpha糖尿病患者对格利克拉的反应是5.2倍,与2型糖尿病患者相比,反应是3.9倍.
- 这些患者表现出强大的胰岛素分泌物后tolbutamide,尽管对葡萄糖反应较弱,和更高的胰岛素敏感性比2型糖尿病患者.
结论:
- 高血糖症的遗传基础显著影响低血糖药物的疗效,HNF-1alpha糖尿病表现出明显的硫基尿素敏感性.
- 这种药物遗传效应支持在HNF-1alpha缺陷缺陷在硫基尿素受体上游的模型.
- 确定高血糖症的遗传原因对于优化患者管理策略至关重要.
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