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  • Title: Elevated vascular endothelial growth factor in systemic sclerosis.
    Author: Choi JJ, Min DJ, Cho ML, Min SY, Kim SJ, Lee SS, Park KS, Seo YI, Kim WU, Park SH, Cho CS.
    Journal: J Rheumatol; 2003 Jul; 30(7):1529-33. PubMed ID: 12858453.
    Abstract:
    OBJECTIVE: To determine the serum levels of vascular endothelial growth factor (VEGF) in patients with systemic sclerosis (SSc) and to search for relationships between its serum levels and the clinical manifestations. METHODS: Serum levels of VEGF in patients with SSc and healthy controls were determined by ELISA. At the time of blood sampling, individual organ involvement was assessed, and a video microscope and PC based image processing were used to visualize nailfold capillaries and to quantify capillary density. RESULTS: Serum levels of VEGF in 48 patients with SSc were significantly higher than in 30 controls (432 +/- 356 vs 91 +/- 64 pg/ml; p < 0.001). Patients with diffuse cutaneous SSc (n = 21) had higher levels of serum VEGF than those with limited cutaneous SSc (n = 27) (432 +/- 356 vs 135 +/- 127 pg/ml; p < 0.001). Serum VEGF levels correlated well with the extent of skin sclerosis, as determined by modified Rodnan skin score (r = 0.656, p < 0.001) and serum TGF-beta levels (r = 0.530, p < 0.001). In particular, serum VEGF levels were inversely correlated with the capillary density of nailfold (r = -0.649, p < 0.001). However, no significant differences were found in the serum levels of VEGF between patients with systemic organ involvement and those without. CONCLUSION: The extent of skin sclerosis may contribute to the elevation of serum VEGF and high VEGF levels may serve as a surrogate indicator of capillary damage in SSc.
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