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Updated: Jul 4, 2026

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
Published on: July 14, 2023
Parathyroid hormone is inversely related to endothelin-1 in patients on haemodialysis
Alessandro Palermo1, Giuseppe Mulè, Marco Guarneri
1Cattedra di Nefrologia, Dipartmento di Medicina Interna, Mallattie Cardiovasculari e NefroUrologiche, Hypertension Excellence Centre of the European Society of Hypertension, Università degli Studi di Palermo, Italy.
Aim:
Parathyroid hormone secretion is mainly influenced by hypocalcaemia, hyperphosphataemia and vitamin D deficiency. However, previous in vitro and in vivo studies showed that endothelin-1 can influence parathyroid hormone secretion. This study was aimed at evaluating this relationship in vivo in uraemic patients.
Methods:
Parathyroid hormone and endothelin-1 plasma concentrations were measured in 67 haemodialysed patients. Patients with history of cardiovascular diseases and those with parathyroid adenoma were excluded.
Results:
Plasma levels of endothelin-1 were found to be inversely related to those of parathyroid hormone (P < 0.04) The multiple regression analysis, carried out considering parathyroid hormone as a dependent variable, and including age, sex, blood pressure, calcium x phosphorus product, and endothelin-1, demonstrated that the independent correlates of parathyroid hormone were endothelin-1 (beta = -0.276; P = 0.015), and calcium x phosphorus product (beta = 0.417; P < 0.0001).
Conclusion:
For the first time in vivo, we demonstrated an inverse independent relationship between endothelin-1 and parathyroid hormone in haemodialysed patients. Because both endothelin-1 and parathyroid hormone are endowed with well-known harmful actions on cardiovascular apparatus, whether such inverse relation may really influence the natural history of cardiovascular damage due to secondary hyperparathyroidism remains to be elucidated.
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