The role of mineral and bone metabolism disorders in the development and progression of cardiac and renal pathology in the patients presenting with long-lasting type 1 diabetes mellitus

The present study included a total of 96 patients with long-lasting type 1 diabetes mellitus (DM1) and early (0-5) stages of chronic renal disease (CRD). Replacement renal therapy (RRT) consisted of programmed hemodialysis (PHD) and kidney transplantation (KT). Routine clinical examination was supplemented by the assessment of phosphorous and calcium metabolism indices, measurement of cardiac pathology markers, and studies of coronary artery calcification with the use of multispiral computed tomography (MSCT) of the heart with the calculation of the Agatston score index. It was shown that the impairment of the renal function was accompanied by a rise in the phosphorus, parathormone, and FGF-23 levels, increased vitamin D deficiency (with a slight deviation of its levels from the reference values in the patients at high risk of cardiovascular events treated with PHD). In the patients who had undergone KT and showed fairly good function of the renal transplant, the above parameters were similar to those of the patients with stage 0-4 CRD which suggested their normalization in case of adequate RRT during DM1. The progress of cardiovascular pathology with the deterioration of the renal function was manifested as an increase of NT-proBNP levels in parallel to the duration of CRD (r=0.304; p