𝔖 Bobbio Scriptorium
✦   LIBER   ✦

VEGF-promoted surgical angiogenesis in necrotic bone

✍ Scribed by Osami Suzuki; Allen T. Bishop; Toru Sunagawa; Kosuke Katsube; Patricia F. Friedrich

Book ID
102510480
Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
250 KB
Volume
24
Category
Article
ISSN
0738-1085

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✦ Synopsis

Abstract

The ability of vascular endothelial growth factor (VEGF) to accelerate neoangiogenesis from implanted arterovenous (AV) bundles in necrotic bone was evaluated. A saphenous AV bundle was placed in a necrotic segment of rabbit ilium. In group II, VEGF (100 ng/h x 3 days) was administered by continuous infusion. Bone blood flow was measured with radioactive‐labeled microspheres, and capillary density was determined by microangiography combined with Spälteholtz bone clearing at 1, 2, and 4 weeks. Neovascularization was observed along the implanted vascular bundle in both groups. One week after surgery, bone blood flow and vessel area were significantly higher in VEGF‐treated animals (P < 0.05). No significant difference was observed at later times. Direct VEGF administration increased surgical angiogenesis and improved blood flow and neovascularization in necrotic bone 1 week after AV bundle implantation. Thereafter, a robust angiogenic response from the AV bundle was seen in both groups. © 2004 Wiley‐Liss, Inc.

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