Volume 63, Issue 2, Pages (February 2003)

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Volume 63, Issue 2, Pages 702-708 (February 2003) Tissue adhesion to bioactive glass-coated silicone tubing in a rat model of peritoneal dialysis catheters and catheter tunnels Edward A. Ross, Christopher D. Batich, William L. Clapp, Judith E. Sallustio, Nadeen C. Lee Kidney International Volume 63, Issue 2, Pages 702-708 (February 2003) DOI: 10.1046/j.1523-1755.2003.00764.x Copyright © 2003 International Society of Nephrology Terms and Conditions

Figure 1 Scanning electron micrographs of the bioactive glass-coated silicone tubing segment in (A) the outer surface, magnification ×270, and (B) cross section, magnification ×65. Kidney International 2003 63, 702-708DOI: (10.1046/j.1523-1755.2003.00764.x) Copyright © 2003 International Society of Nephrology Terms and Conditions

Figure 2 Photographs of sectioned full thickness skin demonstrating no adhesion to uncoated tubing (A) and adhesion to coated segments (B). Note the space (arrowhead) between the movable uncoated tube and the surrounding fibrous sleeve (A). Kidney International 2003 63, 702-708DOI: (10.1046/j.1523-1755.2003.00764.x) Copyright © 2003 International Society of Nephrology Terms and Conditions

Figure 3 Histology of capsules surrounding the uncoated (A and C) and coated (B,D,E and F) catheter segments. Uncoated catheters developed a thin fibrous capsule (A, H&E) rich in collagen (C, trichrome). The coated segments elicited a robust reaction consisting of prominent macrophages and multi-nucleated giant cells with a few lymphocytes (B, H&E). Collagen was interspersed also in this cellular reaction (D, trichrome, arrow indicates fragment of silicone tubing remaining after being stripped by the sectioning process). Von Kossa staining revealed scattered calcific foci (black precipitate) along the inner aspect of the cellular layer facing the coated tubes (E). Outside the cellular reaction layer in the tissue surrounding the coated tubes, doughnut-shaped refractile foreign material (arrows) was present within multi-nucleated giant cells (F). Magnification ×200. Kidney International 2003 63, 702-708DOI: (10.1046/j.1523-1755.2003.00764.x) Copyright © 2003 International Society of Nephrology Terms and Conditions

Figure 4 Electron micrograph of multi-nucleated giant cell that has engulfed a prominent foreign (arrow; magnification ×4125). Kidney International 2003 63, 702-708DOI: (10.1046/j.1523-1755.2003.00764.x) Copyright © 2003 International Society of Nephrology Terms and Conditions