[Inhibitory effect of 7 agents on bovine testis aldose reductase]

The inhibitory effects of seven agents on aldose reductase were studied by enzymatic kinetics using the purified enzyme from bovine testis, sorbinil, tolrestat, silybin and berberini were found to exhibit a marked enzyme-inhibitory effect with Ki values of 1.08 mumol/L, 0.12 mumol/L, 3.5 micrograms/ml, and 2.7 micrograms/ml respectively. The established assay system described in this paper may be useful in screening aldose reductase inhibitors.