@article{oai:niigata-u.repo.nii.ac.jp:00020122, author = {田崎, 和之}, issue = {6}, journal = {新潟医学会雑誌, 新潟医学会雑誌}, month = {Jun}, note = {This study was attempted to evaluate the nephrotoxicity of Cisplatin (CDDP) in 10 lung cancer patients by urinary excretion of guanidinoacetic acid (GAA) , which was produced mainly in the renal proximal tubules by transamidination of glycine from arginine. The urine concentration of N-acetyl-β-glucosaminidase (NAG) and β_2-microglobulin (BMG) was also compared with that of GAA. The urine level of GAA, NAG, and BMG (U-GAA, U-NAG, U-BMG) was measured by high performance liquid chromatography (HPLC), enzyme immunoassay, and latex agglutination method respectively. The serum creatinine level had a significant negative correlation with urinary excretion of GAA (r=-0.35, p<0.05). After administration of CDDP, U-GAA decreased significantly on day 0, 3, 7, 10 and 14. Similarly, U-NAG increased on day 3, 7, and U-BMG on day 0, 1. However, these changes were less prominent than that of U-GAA. The further studies of long-term treated 3 cases revealed that U-GAA was a more sensitive marker than U-NAG or U-BMG in CDDP nephropathy. These findings suggest that U-GAA is extremely useful for early detection of CDDP nephropathy.}, pages = {523--532}, title = {Cisplatin腎障害における尿中グアニジノ酢酸の動態}, volume = {107}, year = {1993} }