Bioengineered vein successfully implanted in U.S. first

The video tutorial explains the process of creating human cell-based vein implants. It begins with a biodegradable mesh scaffolding, to which donor cells are added. Over time, the mesh dissolves, and the vein is cultured in nutrients for two months. The cultured vein is then washed to remove living cells, leaving a collagen structure. These nonliving veins can be stored and implanted without causing an immune response.

What is the initial step in creating a bioengineered vein?

• Storing the vein for future use

• Washing the vein of living cells

• Using a biodegradable mesh scaffolding

• Adding nutrients to the vein

What happens to the mesh scaffolding in the bioengineered vein process?

• It is converted into collagen

• It dissolves away

• It is replaced by a metal framework

• It remains as part of the final structure

How long is the vein cultured in nutrients?

• One year

• Two months

• One week

• Six months

What remains after the vein is washed of living cells?

• A silicone layer

• A metal framework

• A collagen structure

• A plastic tube

Why can the nonliving veins be implanted freely?

• They are cheaper to produce

• They are more durable

• They do not generate an immune response

• They are easier to store