The strong humoral immune response to glutaraldehyde-fixed tissues is reduced in decellularized xenogeneic valves and almost absent in decellularized allogeneic tissue up to 4.5 years after implantation.
Immune response in patients towards ga-pV is induced by the porcine proteins albumin and collagen 6A1 as well as αGal epitopes, which seemed to be more sustained. In contrast, in healthy young subjects pre-formed anti-Gal antibodies were reduced by a meat-free nutrition.
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