[The study of relationship between nuclear metrix protein 22 urinary level and the grade and stage of bladder...

To assess the relationship between nuclear matrix protein (NMP) 22 urinary level and the grade and stage of bladder transitional cell carcinoma.

From June 1999 to March 2005 642 patients underwent NMP22 test, and then the test by cystoscope and pathology were performed in 1 week to 1 month. According to the pathological grade, the patients were divided into 3 groups: group G(1): 69 cases, male 58 and female 11; group G(2): 375 cases, male 255 and female 120; group G(3): 198 cases, male 143 and female 55. And the difference of NMP22 between each group were compared. Meanwhile, according to pathological stage, 239 patients were divided into 3 groups: group PT(1): 121 cases, male 76 and female 45; group PT(2): 65 cases, male 37 and female 28; group PT(3): 53 cases, male 29 and female 24. And the difference of NMP22 between each group were compared.

The concentrations of NMP22 had significant difference between the 3 groups which divided according to pathological grade (Kruskal-Wallis test chi(2) = 67.547, P < 0.001); The concentrations of NMP22 had significant difference between the 3 groups which divided according to pathological stage (Kruskal-Wallis test chi(2) = 20.629, P < 0.001).

There is a relation between NMP22 urinary level and the grade and stage of bladder transitional cell carcinoma.