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International Journal of Endocrinology
Volume 2015 (2015), Article ID 380247, 10 pages
http://dx.doi.org/10.1155/2015/380247
Research Article

Low Magnesium Exacerbates Osteoporosis in Chronic Kidney Disease Patients with Diabetes

1Department of Community Health, Chia-Yi Christian Hospital, Chiayi 600, Taiwan
2Stem Cell Center, Department of Medical Research, Taichung Veterans General Hospital, Taichung 402, Taiwan
3Division of Nephrology, Department of Internal Medicine, Changhua Christian Medical Foundation Erlin Christian Hospital, Changhua 526, Taiwan

Received 16 October 2014; Revised 19 January 2015; Accepted 9 March 2015

Academic Editor: Francesco Pantano

Copyright © 2015 Jui-Hua Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of this study is to investigate the impact of serum Mg on bone mineral metabolism in chronic kidney disease (CKD) patients with or without diabetes. A total of 56 CKD patients not receiving dialysis were recruited and divided into two groups, one group of 27 CKD patients with diabetes and another group of 29 CKD patients without diabetes. Biochemical determinations were made, and the estimated glomerular filtration rate (eGFR) was measured. Bone mineral density was measured by dual-energy X-ray absorptiometry. Serum Mg was inversely correlated with serum Ca and positively correlated with serum parathyroid hormone (PTH) , alkaline phosphatase , and phosphate in the CKD patients with diabetes. The CKD patients with diabetes had lower serum albumin and a higher proportion of hypomagnesemia and osteoporosis than the nondiabetic patients did . Serum Mg was inversely correlated with eGFR in the CKD patients with or without diabetes . Serum Mg showed an inverse correlation with 25-hydroxyvitamin D in CKD patients without diabetes . Furthermore, the diabetic CKD patients with low serum Mg had a lower iPTH and a higher serum Ca/Mg ratio than the other CKD patients. The lower serum Mg subgroup showed a higher incidence of osteoporosis than the moderate and higher serum Mg subgroups did (66.7%, 39.4%, and 29.4%, resp.). In conclusion, low serum Mg may impact iPTH and exacerbates osteoporosis in CKD patients, particularly with diabetes.