Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.5.1.5 (urease)
 7,257 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

By using our new infection stone model of a rat, we evaluated the effect of a novel urease inhibitor, N-(pivaloyl)glycinohydroxamic acid (P-GHA), on the formation of an infection bladder stone. The oral dosing of P-GHA significantly inhibited the elevation of the urinary ammonia level of rats having the urinary tract infection with Proteus mirabilis. A short term regimen (7 d, 730 +/- 38 mg/kg) with P-GHA significantly inhibited the development of the infection bladder stone. Furthermore, a long term combination regimen (11 d) of P-GHA and aminobenzylpenicillin markedly inhibited the development of the infection bladder stone, and also caused a very slight renal impairment to the rats tested in contrast with the method of Vermeulen et al. Our infection stone model in rats, therefore, seems to be useful for the evaluation of therapeutic agents in long term examinations.
 ...
PMID:Evaluation of effects of novel urease inhibitor, N-(pivaloyl)glycinohydroxamic acid on the formation of an infection bladder stone using a newly designed urolithiasis model in rats. 189 94

Cyclosporine A (CsA) is a effective and widely used immunosuppressive agent. Nevertheless, its intense nephrotoxicity restricts clinical application. In this study, wistar rats were randomly divided into a control group, a low-dose group and a high-dose group. The rats in the low-dose group and those in the high-dose group were given CsA at a daily dose of 5 mg per kg and 100 mg per kg by gavage for 7 d respectively, while the control group was given distilled water of equal volume. The extent of renal impairment was evaluated by renal function assay, and urease and pathological observation. The results showed that the rats in the low-dose group did not suffer remarkable renal impairment, while the rats in the high-dose group did. Two-dimensional gel electrophoresis (2DE) was utilized to resolve the plasma protein profile. Six spots showing stable and significantly different expression were identified by MALDI-TOF-MS and ESI-TOF-MS/MS respectively, the two induced proteins were identified respectively as alpha-1-acid glycoprotein (AAG) and clusterin (CLUS), and the one inhibited was haptoglobin (Hp).
 ...
PMID:Differential expression of plasma proteins in cyclosporine A-induced rat acute nephrotoxicity. 1927 Mar 97