[The uptake of nalidixic acid and enoxacin by rat renal cortical slices in rat]. 1995

M Oda, and M Sasaya, and T Hirano, and Y Nakajima, and K Iwata, and K Chiba, and S Miyazaki, and M Takada
Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Japan.

The mechanisms involved in the renal excretion of quinolone and new quinolone antibacterial drugs are still incompletely understood. The purpose of this study was to examine the renal handling of nalidixic acid (NA) and enoxacin (ENX), using the renal cortical slices uptake techniques in rats. It was demonstrated that both NA and ENX were taken against a concentration gradient by a saturable processes resulting from the ratio of slice to medium (ratio of S/M) being dependent on the time and the concentration. It was indicated that the inhibition of uptake by 2,4-dinitrophenol, ouabain and sodium cyanate was shown to be an energy dependence. Probenecid and cimetidine exhibited that they might inhibit NA uptake slightly. ENX uptake was inhibited by probenecid, cimetidine, guanidine and disopyramide, suggesting that ENX might possess an affinity for both anionic and cationic transport mechanisms.

UI MeSH Term Description Entries
D007672 Kidney Cortex The outer zone of the KIDNEY, beneath the capsule, consisting of KIDNEY GLOMERULUS; KIDNEY TUBULES, DISTAL; and KIDNEY TUBULES, PROXIMAL. Cortex, Kidney
D008297 Male Males
D009268 Nalidixic Acid A synthetic 1,8-naphthyridine antimicrobial agent with a limited bacteriocidal spectrum. It is an inhibitor of the A subunit of bacterial DNA GYRASE. Nalidixin,Nalidixate Sodium,Nalidixate Sodium Anhydrous,Nevigramon,Sodium Nalidixic Acid, Anhydrous,Sodium Nalidixic Acid, Monohydrate,Acid, Nalidixic,Anhydrous, Nalidixate Sodium,Sodium Anhydrous, Nalidixate,Sodium, Nalidixate
D011339 Probenecid The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy. Benecid,Benemid,Benuryl,Pro-Cid,Probecid,Probenecid Weimer
D002927 Cimetidine A histamine congener, it competitively inhibits HISTAMINE binding to HISTAMINE H2 RECEPTORS. Cimetidine has a range of pharmacological actions. It inhibits GASTRIC ACID secretion, as well as PEPSIN and GASTRIN output. Altramet,Biomet,Biomet400,Cimetidine HCl,Cimetidine Hydrochloride,Eureceptor,Histodil,N-Cyano-N'-methyl-N''-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)guanidine,SK&F-92334,SKF-92334,Tagamet,HCl, Cimetidine,Hydrochloride, Cimetidine,SK&F 92334,SK&F92334,SKF 92334,SKF92334
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015365 Enoxacin A broad-spectrum 6-fluoronaphthyridinone antibacterial agent that is structurally related to NALIDIXIC ACID. AT-2266,CI-919,Enoxacin Sesquihydrate,Enoxin,Enoxor,PD-107779,Penetrex,AT 2266,AT2266,CI 919,CI919,PD 107779,PD107779,Sesquihydrate, Enoxacin
D017136 Ion Transport The movement of ions across energy-transducing cell membranes. Transport can be active, passive or facilitated. Ions may travel by themselves (uniport), or as a group of two or more ions in the same (symport) or opposite (antiport) directions. Antiport,Ion Cotransport,Ion Exchange, Intracellular,Symport,Uniport,Active Ion Transport,Facilitated Ion Transport,Passive Ion Transport,Cotransport, Ion,Exchange, Intracellular Ion,Intracellular Ion Exchange,Ion Transport, Active,Ion Transport, Facilitated,Ion Transport, Passive,Transport, Active Ion,Transport, Ion
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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