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Abnormal calcium metabolism in hemodialyzed patients with diabetic nephropathy
Insights
Patients with diabetes mellitus nephropathy undergoing hemodialysis show fewer bone changes and lower parathyroid hormone levels compared to non-diabetic patients. Higher calcitonin levels were also observed in the diabetic group.
Area of Science:
- Nephrology
- Endocrinology
- Bone Metabolism
Background:
- Diabetes mellitus nephropathy and chronic glomerulonephritis are leading causes of end-stage renal disease.
- Altered calcium and bone metabolism are common complications in patients undergoing hemodialysis.
- Differences in bone disease progression between diabetic and non-diabetic hemodialysis patients are not fully understood.
Purpose of the Study:
- To compare calcium metabolism and bone changes in hemodialyzed patients with diabetes mellitus nephropathy (HD/DM) versus hemodialyzed non-diabetic patients with chronic glomerulonephritis (HD/non-DM).
- To investigate the relationship between parathyroid hormone, calcitonin levels, and bone health in these patient groups.
Main Methods:
- Comparative study of hemodialysis patients.
- Assessment of bone changes using X-ray analysis of mandibular lamina dura and trabecular patterns.
- Measurement of serum c-terminal parathyroid hormone and serum calcitonin levels.
Main Results:
- Hemodialyzed patients with diabetes mellitus nephropathy (HD/DM) exhibited a lower incidence of visible bone changes compared to hemodialyzed non-diabetic patients (HD/non-DM).
- Serum c-terminal parathyroid hormone levels were significantly lower in the HD/DM group.
- Serum calcitonin levels were significantly higher in the HD/DM group.
Conclusions:
- Lower levels of c-terminal parathyroid hormone in HD/DM patients may contribute to the reduced incidence of bone changes.
- Elevated calcitonin levels in HD/DM patients might play a role in modulating bone metabolism.
- These findings suggest distinct pathways of bone disease in diabetic versus non-diabetic chronic kidney disease patients on hemodialysis.
Abstract:
Calcium metabolism was studied in hemodialyzed patients with diabetes mellitus nephropathy (HD/DM) and in hemodialyzed nondiabetic patients with chronic glomerulonephritis (HD/non-DM). Incidence of bone changes visible in X-ray films, assessed by changes in the lamina dura and trabecular patterns of mandibulae, was less in HD/DM than in HD/non-DM patients. Serum c-terminal parathyroid hormone was significantly lower in HD/DM than that in HD/non-DM. Serum calcitonin was higher in HD/DM than that in HD/non-DM. The lower level of c-terminal parathyroid hormone would be a reason that bone changes were less in HD/DM than in HD/non-DM patients.