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Evaluation of the effect of triterpenes on urinary risk factors of stone formation in pyridoxine deficient hyperoxaluric rats.

Abstract
Investigations were carried out to evaluate the efficacy of the pentacyclic triterpene, lupeol and its ester, lupeol linoleate, against calcium oxalate urolithiasis in rats. Administration of a pyridoxine deficient diet containing 3% glycollic acid for 21 days led to increased excretion of stone forming constituents such as calcium, oxalate and uric acid. Crystal deposition and subsequent renal tubular damage resulted in increased excretion of the tubular enzymes alkaline phosphatase, lactate dehydrogenase, gamma glutamyl transferase, beta glucuronidase and N-acetyl glucosaminidase along with reduced fibrinolytic enzymes. A reduction in the urinary inhibitory factors magnesium and glycosaminoglycans was also observed. Treatment with lupeol and lupeol linoleate reduced the extent of tubular damage as evidenced from reduced enzymuria and minimized the excretion of stone forming constituents.
AuthorsLakshminarasimhan Vidya, Mahimainathan Lenin, Palaninathan Varalakshmi
JournalPhytotherapy research : PTR (Phytother Res) Vol. 16 Issue 6 Pg. 514-8 (Sep 2002) ISSN: 0951-418X [Print] England
PMID12237806 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
CopyrightCopyright 2002 John Wiley & Sons, Ltd.
Chemical References
  • Oxalates
  • Pentacyclic Triterpenes
  • Triterpenes
  • lupeol linoleate
  • Calcium Oxalate
  • Uric Acid
  • L-Lactate Dehydrogenase
  • gamma-Glutamyltransferase
  • Alkaline Phosphatase
  • Glucuronidase
  • Acetylglucosaminidase
  • Pyridoxine
  • lupeol
  • Calcium
Topics
  • Acetylglucosaminidase (metabolism)
  • Alkaline Phosphatase (metabolism)
  • Animals
  • Calcium (urine)
  • Calcium Oxalate (urine)
  • Glucuronidase (metabolism)
  • Hyperoxaluria (drug therapy)
  • L-Lactate Dehydrogenase (metabolism)
  • Male
  • Oxalates (urine)
  • Pentacyclic Triterpenes
  • Pyridoxine (deficiency)
  • Rats
  • Rats, Wistar
  • Risk Factors
  • Triterpenes (pharmacology, therapeutic use, urine)
  • Uric Acid (urine)
  • Urinary Calculi (drug therapy)
  • gamma-Glutamyltransferase (metabolism)

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