TY - JOUR T1 - Nephrocalcinosis and Urinary Mineral Concentrations in Rats Fed Diets Containing Various Concentrations of Magnesium AU - Mohamed, H.E. AU - Alhaidary, A. AU - Beynen, A.C. JO - Journal of Animal and Veterinary Advances VL - 9 IS - 18 SP - 2405 EP - 2408 PY - 2010 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2010.2405.2408 UR - https://makhillpublications.co/view-article.php?doi=javaa.2010.2405.2408 KW - Rats KW -nephrocalcinosis KW -diet KW -urine KW -magnesium KW -phosphorus KW -concentrations AB - High magnesium intakes are known to inhibit the development of nephrocalcinosis in female rats but there was no information on the dose-response relationship and the underlying mechanism. In an attempt to collect the lacking information, female rats were fed diets containing 0.02-0.24% magnesium as the only variable. Increasing dietary magnesium concentrations were found to reduce nephrocalcinosis in a dose-dependent fashion. The lowest dietary magnesium level produced a kidney calcium concentration of 10.6% in the dry matter whereas the highest magnesium intake reduced kidney calcium to 0.2%. Increasing dietary magnesium concentrations produced increasing urinary magnesium concentrations in combination with decreasing phosphorus concentrations. It is suggested that the magnesium-induced inhibition of nephrocalcinosis is caused by a decrease in urinary phosphorus and increase in urinary magnesium. ER -