Relationship between parathyroid hormone and renin-angiotensin-aldosterone system in hemodialysis patients with secondary hyperparathyroidism.
2020
INTRODUCTION Hyperparathyroidism (HPT) is associated with mortality and cardiovascular disease (CVD) in dialysis patients. However, its mechanism is still unclear. It is suspected that parathyroid hormone (PTH) is associated with the renin-angiotensin-aldosterone system (RAAS) as a possible mechanism. Thus, we examined their hormonal interaction in hemodialysis patients with secondary HPT. MATERIALS AND METHODS Seventeen hemodialysis patients with HPT were included. All patients underwent total parathyroidectomy (PTx). Serum intact PTH (iPTH), calcium and phosphate levels, plasma renin activity (PRA), and plasma aldosterone levels (ALD) were measured pre- and post-PTx. RESULTS Pre-serum iPTH tended to be correlated with pre-PRA and were significantly correlated with pre-ALD (pre-PRA: r = 0.44, p = 0.07, pre-ALD: r = 0.49, p < 0.05). With the reduction in serum iPTH after PTx, PRA and ALD significantly decreased after PTx. Additionally, the change in serum iPTH tended to be correlated with the changes in PRA and ALD (PRA; r = 0.46, p = 0.05, ALD; r = 0.45, p = 0.06). CONCLUSION Our results suggest that PTH could be interrelated with RAAS in hemodialysis patients with secondary HPT.
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