Glycosidase on the upper tract of small intestines . it doesnt effectively control blood sugar before meal 糖苷酶对葡萄糖的吸收，从而控制饭后血糖，对空腹血糖控制不佳。
2.
Reflux aggravates the back pressure effect on the upper tract by exposing it to abnormally high intravesical pressures ? ? in addition to favoring the onset or persistence of urinary tract infection 面对膀胱非常高的压力，尿液反流除促使尿路发生感染或使感染持续性，还加重上尿路的反压。
