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  • Title: Vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF) and soluble interleukin-2 receptor (sIL-2R) concentrations in peripheral blood as markers of pituitary tumours.
    Author: Komorowski J, Jankewicz J, Stepień H.
    Journal: Cytobios; 2000; 101(398):151-9. PubMed ID: 10755214.
    Abstract:
    Vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), and soluble interleukin-2 receptor (sIL-2R) are important cytokines. They are secreted by normal pituitary glands and those with all types of adenomas and may be involved in pituitary tissue growth. The peripheral blood concentrations of VEGF, bFGF and sIL-2R in nineteen patients (17-70 years) with pituitary tumours and ten healthy subjects (23-34 years) were studied. Hypersecretion of prolactin (five cases), human growth hormone (four cases), and thyroid stimulating hormone (one case) was recorded in some patients, and the remaining subjects were diagnosed as having nonfunctional pituitary tumours. Increased peripheral blood plasma levels of VEGF (310.82 +/- 59.17 pg/ml) compared with controls (40.32 +/- 11.80 pg/ml; p < 0.01), as well as bFGF (87.27 +/- 7.58 pg/ml) versus controls (11.14 +/- 2.43 pg/ml; p < 0.001) were recorded. The levels of sIL-2R did not differ between the pituitary tumour patients (4,490.58 +/- 581.50 pg/ml) and control subjects (3,617.01 +/- 1,397.18 pg/ml; p > 0.05). The concentrations of VEGF and bFGF in the peripheral blood are useful additional markers of the presence of tumours.
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