AIM: to investigate apoptosis of retinal capillary cells in early diabetic retinopathy (DR) and observe apoptotic features.

The senile diabetics have more risks in developing into pathogenesis character of deficiency of qi and blood stasis. In Clinic, it could be found by macroscopic syndrome and microcosmic examination.

Reductions in albuminuria, a hallmark of early diabetic kidney disease, have been reported in initial human trials.