RESUMO
Objective:To investigate the effect of mangiferin on the mRNA expression of phosphoribosylpyrohoosphate synthetase (PRPS), phosphate ribose pyrophosphate amide transferase (PRPPAT) in liver and hypoxanthine-guanine phosphate transfer enzyme (HGPRT) in brain of hyperuricemic mice induced by potassium oxonate. Method:Hyperuricemic mice were induced through intraperitoneal injection with uricase inhibitor potassium oxonate. The serum uric acid level was determined by the phosphotungstic acid method. The mRNA expression levels of PRPS and PRPPAT in liver as well as HGPRT in brain of hyperuricemic mice were measured by reverse transcriptase polymerase chain reaction (RT-PCR). Result:An intraperitoneal injection with potassium oxonate caused a marked increase in serum uric acid level, compared with normal control group (P-1 was able to significantly reduce serum uric acid levels, compared with hyperuricemic control group (PPConclusion:The hyporuricemic effect of mangiferin might not be related with PRPS, PRPPAT and HGPRT in therapeutic dose.