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Determination of thiols and disulfides in normal rat tissues and hamster pancreas treated with N ‐nitrosobis(2‐oxopropyl)amine using 4‐(aminosulfonyl)‐7‐fluoro‐2, 1,3‐benzoxadiazole and ammonium 7‐fluoro‐2, 1,3‐benzoxadiazole‐4‐sulfonate
Author(s) -
Toyo'oka Toshimasa,
Furukawa Fumio,
Suzuki Takashi,
Saito Yukio,
Takahashi Michihito,
Hayashi Yuzo,
Uzu Sonoko,
Imai Kazuhiro
Publication year - 1989
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.1130030406
Subject(s) - chemistry , glutathione , hamster , endocrinology , medicine , cystine , pancreas , kidney , amine gas treating , biochemistry , cysteine , enzyme , biology , organic chemistry
Biological thiols and disulfides in rat and hamster tissues were simultaneously determined by HPLC‐fluorescence detection using 4‐(aminosulfonyl)‐7‐fluoro‐2, 1,3‐benzoxadiazole (ABD‐F) and ammonium 7‐fluoro‐2,1,3‐benzoxadiazole‐4‐sulfonate (SBD‐F). The coefficients of variation (CV) of the method for reduced glutathione (GSH) and oxidized glutathione (GSSG) in liver and for cysteine (CySH) and cystine (CySSCy) in kidney were less than 3.1%. In 11 tissues of Wistar rats (liver, spleen, heart, lung, stomach, bladder, ovary, uterus, adrenal, kidney and pancreas), only CySH, CySSCy, GSH and/or GSSG were detected. Other thiols and disulfides were at extremely low levels in all samples. Both concentrations of CySH and CySSCy in the livers of old rats (111 weeks old, F344) were significantly higher than those of young rats (8 weeks old) (CySH, 0.246 ± 0.099 vs 0.130 ± 0.020 μmol/g; CySSCy, 0.051 ± 0.027 vs 0.013 ± 0.002 μmol/g). Administration of N ‐nitrosobis(2‐oxopropyl)amine (BOP), a selective carcinogen of hamster pancreatic cancer, to Syrian golden hamsters (38 weeks old) resulted in the increase in the pancreas of GSH to a level 19 times as high and of GSSG to a level 14 times as high as those in untreated hamsters (GSH, 1.173 ± 0.272 vs 0.062 ± 0.017 μmol/g; GSSG, 0.155 ± 0.063 vs 0.011 ± 0.001 μmol/g).