Kidney patients' cells used to grow blood vessels in lab Part 2 About half of kidney-dialysis patients (require) a permanently implanted tube to connect their circulatory system to a dialysis machine because they have no (suitable) blood vessels that can be harvested. But these plastic tubes (leave) patients susceptible to infections and inflammation. Researchers at Cytograft Tissue Engineering in Novato take (skin) cells from the back of a patient's hand and extract two types of cells -- fibroblasts that provide the structural framework of the vessels and endothelial cells that (provide) the lining. The cells are grown in flat sheets in the laboratory, then formed into a tube. The process (takes) about six months.

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