Research Article

Inhibition of Advanced Glycation End-Product Formation by Origanum majorana L. In Vitro and in Streptozotocin-Induced Diabetic Rats

Table 1

The inhibitory effects of methanol extract from O. majorana (OM) and aminoguanidine on the formation of advanced glycation end-products (AGEs), in vitro induced by glucose, methylglyoxal and ribose.

Inducer TreatmentAGEs
IC50 (mg/mL)

GlucoseMethanol extract (OM) 0 . 3 1 0 ± 0 . 0 5 4
Aminoguanidine 0 . 3 2 3 ± 0 . 0 7 5
Phloroglucinol 0 . 0 7 0 ± 0 . 0 0 3 2

MethylglyoxalMethanol extract (OM) 0 . 1 9 0 ± 0 . 0 2 8
Aminoguanidine 0 . 1 9 5 ± 0 . 0 1 5
Phloroglucinol 0 . 0 6 0 ± 0 . 0 0 8 3

Lysozyme/riboseMethanol extract (OM)64.7%
Aminoguanidine58.3%

Data are mean ± standard deviation of triplicate tests.