Abstract:
OBJECTIVES:The aim of the present study was to determine vascular endothelial growth factor (VEGF), prostaglandin E(2) (PGE(2)) and active renin levels in patients with hormonally active adrenal tumours. DESIGN:The study was comprised of 16 patients with primary aldosteronism, 13 patients with active Cushing's syndrome due to adrenal adenomas, 8 patients with adrenal carcinomas, 19 patients with phaeochromocytoma and 19 healthy volunteers. METHODS:Active renin in plasma was determined by a two-site immunoradiometric assay. VEGF in sera samples and PGE(2) in 24-h urine were measured by ELISA. RESULTS:VEGF was significantly elevated in all the four groups of patients as compared with the controls. VEGF levels in patients with Cushing's syndrome were higher than those in patients with primary aldosteronism. Patients with adrenal carcinomas had the highest VEGF levels and the differences reached significance as compared with patients with primary aldosteronism and phaeochromocytoma. PGE(2) levels were not significantly different among groups. Active renin was significantly the lowest in patients with primary aldosteronism and significantly the highest in patients with phaeochromocytoma compared with the controls. Active renin in patients with primary aldosteronism was significantly lower than in those with Cushing's syndrome, phaeochromocytoma and adrenal carcinoma. CONCLUSIONS:Our data indicated that the mean level of VEGF in patients with all investigated adrenal tumours was significantly higher than in healthy controls. The cortisol-producing tumours appear to have increased angiogenic potential. Angiogenesis is probably associated not only with malignancy but also with functional activity of the adrenal tumors.
journal_name
Eur J Endocrinoljournal_title
European journal of endocrinologyauthors
Zacharieva S,Atanassova I,Orbetzova M,Nachev E,Kalinov K,Kirilov G,Shigarminova R,Ivanova R,Dashev Gdoi
10.1530/eje.0.1500345subject
Has Abstractpub_date
2004-03-01 00:00:00pages
345-9issue
3eissn
0804-4643issn
1479-683Xjournal_volume
150pub_type
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