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Related Experiment Video

Updated: Dec 21, 2025

Vein Interposition Model: A Suitable Model to Study Bypass Graft Patency

Vein Interposition Model: A Suitable Model to Study Bypass Graft Patency

Published on: January 15, 2017

A rat arteriovenous graft model using decellularized vein.

Hualong Bai^1,2, Zhiwei Wang¹, Mingxing Li¹

¹Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China.

|May 12, 2020

Summary

Decellularized rat jugular veins show promise as arteriovenous grafts, maintaining patency and supporting cellular integration. This study validates a new model for testing vascular graft applications.

Keywords:

Arteriovenous graft CD90 decellularization endothelial progenitor cell macrophage smooth muscle cell

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Last Updated: Dec 21, 2025

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Published on: May 15, 2020

Area of Science:

Biomaterials Science
Vascular Surgery
Tissue Engineering

Background:

Prosthetic arteriovenous grafts frequently fail clinically, necessitating new tissue-engineered vascular graft solutions.
Decellularized biological conduits offer a potential alternative to synthetic grafts.
The study investigates the feasibility of using decellularized rat jugular veins as arteriovenous grafts.

Purpose of the Study:

To evaluate the efficacy of decellularized rat jugular veins as arteriovenous grafts.
To assess the graft's ability to support reendothelialization and adapt to arterial conditions.
To establish a preclinical model for testing vascular graft applications.

Main Methods:

Decellularized or autologous rat jugular veins (1 cm length, 1 mm diameter) were used as arteriovenous grafts in Wistar rats.
Grafts were implanted between the inferior vena cava and aorta.
Rats were examined on postoperative day 21.

Main Results:

All grafts, both control and decellularized, demonstrated 100% patency.
Reendothelialization, smooth muscle cell deposition, and macrophage infiltration were comparable between groups.
Outflow veins adapted similarly, with accumulation of progenitor cells and macrophages around the grafts.

Conclusions:

Decellularized rat jugular veins can be successfully employed as arteriovenous grafts in a rat model.
The host response involves progenitor cells and macrophages, indicating biological integration.
This model serves as a valuable platform for preclinical evaluation of arteriovenous grafts.