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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-4-22
pubmed:abstractText
In a prospective randomized study, the effects of the calcium entry blocker nifedipine on shock-wave-induced tubular impairment were studied. 24 patients with renal pelvic or calyceal stones undergoing anesthesia-free extra-corporeal shock wave lithotripsy (ESWL) without ancillary measures were randomly assigned to the nifedipine group (n = 12) or the control group (n = 12). Four doses of nifedipine (10 mg t.i.d.) were given orally, starting the night before ESWL. Controls received no medication. To assess renal tubular function, the urinary excretion of alpha 1-microglobulin (A1M), N-acetyl-beta-glucosaminidase (NAG) and Tamm-Horsfall protein (THP) were measured before, immediately, 12 and 24 h after ESWL. After lithotripsy, there was a rise in urinary A1M and NAG which was significantly higher in the control than in the nifedipine group. THP, a glycoprotein synthesized by distal tubular cells, fell significantly less in the nifedipine group compared to the controls. Our results indicate that nifedipine exhibits a protective effect on shock-wave-induced tubular damage similar to verapamil. The underlying mechanisms are not clarified yet, direct actions on tubular cells and interference with renal hemodynamics have to be discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0302-2838
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
99-104
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Limitation of shock-wave-induced renal tubular dysfunction by nifedipine.
pubmed:affiliation
Department of Urology, Eberhard-Karls-University, Tübingen, FRG.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Randomized Controlled Trial