INFLUENCE OF DEHYDRATION AND D-GLUCARATE ON DISTRIBUTION AND EXCRETION OF KANAMYCIN IN RATS

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概要

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• Effects of dehydration and sodium D-glucaro-l, 4-lactone on kanamycin distribution in the kidneys, liver, lungs, spleen and cochleae were determined after intramuscular injection of the antibiotic into male rats. Coincident changes in plasma concentration and urinary excretion of the antibiotic were also measured. After administration of 30 mg/kg of kanamycin, dehydrated rats showed slower plasma elimination and urinary excretion of the drug as compared with normal animals. When the dehydrated rats were pretreated with sodium D-glucaro-l, 4-lactone, however, both the plasma half-life of drug elimination and the rate of urinary drug excretion were in good parallel to those of normal animals. In the organ distribution study, dehydrated rats showed delayed removal of kanamycin from all organs as compared with normal animals. The extremely high level of the antibiotic in the kidney was about two orders of magnitude higher than found in other organs. In addition, the kidney showed different time course patterns for tissue levels in dehydrated rats. In dehydrated rats given sodium D-glucaro-l, 4-lactone, the antibiotic levels in all organs followed the same pattern as in normal rats. When a lower dose of kanamycin was given to the dehydrated rats, the drug was cleared from the plasma with a decreased half-life. The tissue distribution percentages also decreased in all organs as the dose was lowered in dehydrated rats and with 1 mg/kg of kanamycin, only the kidney content was higher than that in sodium D-glucaro-l, 4-lactone-treated animals.

• 社団法人 日本薬理学会の論文

著者

• Hirata Kozo

  Department Of Internal Medicine Jichi Medical University Omiya Medical Center

• SUZUKI Shigeo

  Research Laboratories, Chugai Pharmaceutical Co., Ltd.

• FURUNO Koji

  Research Laboratories, Chugui Pharmaceutical Co., Ltd.

• HIRATA Kozo

  Department of Urology, Faculty of Medicine, Kvrrshu University

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• INFLUENCE OF DEHYDRATION AND D-GLUCARATE ON DISTRIBUTION AND EXCRETION OF KANAMYCIN IN RATS

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