scholarly journals Evaluation of antiurolithiatic effects of Parmelia perlata against calcium oxalate calculi in hyperoxaluric rats

1972 ◽  
Vol 42 (2) ◽  
pp. 197-207 ◽  
Author(s):  
D. Fraser ◽  
R. G. G. Russell ◽  
Ortrun Pohler ◽  
W. G. Robertson ◽  
H. Fleisch

1. Bladder stones composed of calcium hydrogen phosphate dihydrate, calcium oxalate mono- and di-hydrate and magnesium ammonium phosphate hexahydrate (struvite) were successfully induced in rats by various dietary manipulations and by implanting zinc pellets in the bladder. 2. The effect of a diphosphonate, disodium ethane-1-hydroxy-1,1-diphosphonate (EHDP), given in the drinking water at concentrations of 0·0025, 0·05 and 0·5% (w/v), on the size and composition of these stones was examined. 3. All the concentrations of EHDP decreased the weight of the calcium oxalate calculi. In contrast, only the highest concentration of EHDP inhibited calcium hydrogen phosphate stone formation and the magnesium ammonium phosphate stones were unaffected. 4. The difference between the effects on calcium oxalate and magnesium ammonium phosphate stones is consistent with the finding that EHDP inhibited the precipitation of calcium oxalate from solution in vitro but had only a slight effect on magnesium ammonium phosphate precipitation. 5. It is suggested that EHDP might be of use in the prevention of some types of urinary stones in man.


1974 ◽  
Vol 112 (4) ◽  
pp. 509-512 ◽  
Author(s):  
Edwin L. Prien ◽  
Stanley F. Gershoff

1991 ◽  
Vol 68 (5) ◽  
pp. 454-458 ◽  
Author(s):  
N. A. LAMINSKI ◽  
A. M. MEYERS ◽  
M. KRUGER ◽  
M. I. SONNEKUS ◽  
L. P. MARGOLIUS

2014 ◽  
Vol 2 (2) ◽  
pp. 51-53
Author(s):  
Fèlix Grases ◽  
Antonia Costa-Bauzá ◽  
Rafel M. Prieto ◽  
Antonio Servera

2017 ◽  
Vol 6 (2) ◽  
pp. 149-155
Author(s):  
Parveen Kumar Goyal ◽  
◽  
Santosh Kumar Verma ◽  
Anil Kumar Sharma ◽  
◽  
...  

Objectives: The present manuscript was focused on evaluating the antilithiatic potential of Vernonia cinerea extract (VCE) against calcium oxalate calculi using experimental model. Methods: The drinking water containing ethylene glycol (0.75% v/v) and ammonium chloride (1% w/v) was used to induce hyperoxaluria in Wistar rats. Thirty-six rats, divided into following six groups (each containing six animals), were treated with vehicle (normal control), ethylene glycol and ammonium chloride (urolithic), Neeri (standard), 100, 300 and 500 mg/kg, VCE (tests). The experimental protocol involved the estimation of different biochemical parameters in urine, serum, kidney homogenates, and histopathological examinations of the kidney. Results: The urolithic rats showed the presence of oxalate crystals in renal tubules and significant changes in biochemical parameters like decreased creatinine clearance, increased urinary levels of oxalates, urea, calcium, phosphorus, uric acid, proteins, decreased urinary magnesium levels; increased serum levels of urea nitrogen, uric acid, calcium, phosphorus, lactate dehydrogenase; increased calcium, phosphorus, and oxalate contents in kidney homogenates. It altered the renal architecture and impaired the functions. The extract significantly (p< 0.05) reversed the biochemical changes in urine, serum and kidney homogenates in a dose-dependent manner. It improved the renal functions as indicated by improved creatinine clearance, reduced lactate dehydrogenase activity and restoration of renal architecture towards normal. Conclusions: Vernonia cinerea showed significant antilithiatic potential against oxalate calculi in glycolated rats.


1995 ◽  
Vol 15 (4) ◽  
pp. 249-252 ◽  
Author(s):  
Han Jian-zhi ◽  
Zhang Xu ◽  
Li Jia-gui ◽  
Zhang Yong-shang

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