Serum monocyte chemokine protein-1 levels before and after parathyroidectomy in patients with primary hyperparathyroidism.

OBJECTIVE

To investigate the effects of parathyroidectomy on serum monocyte chemokine protein-1 (MCP-1) levels in patients with primary hyperparathyroidism (PHPT).

METHODS

Forty-three PHPT patients, age 56 ± 12 years, underwent minimally invasive parathyroidectomy. Serum samples were collected at 0 and 15 to 20 minutes after parathyroid adenoma removal. Serum samples were stored at -70°C until time of assay.

RESULTS

In 40 PHPT patients with a single adenoma, MCP-1 levels decreased from 342 ± 103 to 250 ± 77 pg/mL (P<.001) 15 to 20 minutes after parathyroid adenoma removal. MCP-1 levels were positively correlated with intact parathyroid hormone (PTH) levels (R = 0.47; P<.01). In 3 PHPT patients with double parathyroid adenoma, MCP-1 levels did not decrease after removal of the first adenoma but decreased 15 to 20 minutes after second adenoma removal.

CONCLUSION

Our results provide evidence that the decrease in serum intact PTH due to minimally invasive parathyroidectomy results in an immediate decrease in serum MCP-1 levels.