Pullman John, Darsow Tamara, Frias Juan P
Mercury Street Medical Group, Butte, MT, USA.
Vasc Health Risk Manag. 2006;2(3):203-12. doi: 10.2147/vhrm.2006.2.3.203.
In patients with diabetes, dysregulation of multiple glucoregulatory hormones results in chronic hyperglycemia and an array of associated microvascular and macrovascular complications. Optimization of glycemic control, both overall (glycosylated hemoglobin [A1C]) and in the postprandial period, may reduce the risk of long-term vascular complications. However, despite significant recent therapeutic advances, most patients with diabetes are unable to attain and/or maintain normal or near-normal glycemia with insulin therapy alone. Pramlintide, an analog of amylin, is the first in a new class of pharmaceutical agents and is indicated as an adjunct to mealtime insulin for the treatment of patients with type 1 and type 2 diabetes. By mimicking the actions of the naturally occurring hormone amylin, pramlintide complements insulin by regulating the appearance of glucose into the circulation after meals via three primary mechanisms of action: slowing gastric emptying, suppressing inappropriate post-meal glucagon secretion, and increasing satiety. In long-term clinical trials, adjunctive pramlintide treatment resulted in improved postprandial glucose control and significantly reduced A1C and body weight compared with insulin alone. The combination of insulin and pramlintide may provide a more physiologically balanced approach to managing diabetes.
在糖尿病患者中,多种血糖调节激素的失调会导致慢性高血糖以及一系列相关的微血管和大血管并发症。优化血糖控制,包括总体控制(糖化血红蛋白[A1C])和餐后血糖控制,可能会降低长期血管并发症的风险。然而,尽管近期治疗取得了显著进展,但大多数糖尿病患者仅通过胰岛素治疗无法达到和/或维持正常或接近正常的血糖水平。普兰林肽是一种胰淀素类似物,是一类新型药物中的首个药物,被指定为餐时胰岛素的辅助药物,用于治疗1型和2型糖尿病患者。通过模拟天然存在的激素胰淀素的作用,普兰林肽通过三种主要作用机制调节餐后葡萄糖进入循环的情况,从而补充胰岛素的作用:减缓胃排空、抑制不适当的餐后胰高血糖素分泌以及增加饱腹感。在长期临床试验中,与单独使用胰岛素相比,辅助使用普兰林肽治疗可改善餐后血糖控制,并显著降低A1C和体重。胰岛素和普兰林肽的联合使用可能为糖尿病管理提供一种更符合生理平衡的方法。