10 December 1999
Ann Transplant 1999; 4(3-4): 85-90 :: ID: 497493
Applications of allogenic amnion grafts range from wound dressing of severe bums, dermabrasions and lower extremity ulcer treatments to plastic surgery, larynglology and ophthalmology. The aim of the present study was to elaborate the method of processing, preservation and sterilization of human amnion allografts prepared as wound dressing used mainly for burned patients. During the amniotic sac processing (after separation of chorion) special attention was paid to ensure that the epithelial side of amnion is placed directly on polyester net used as a support. After application on the wound, the epithelial side with the basement membrane is facing outwards; this will promote migration, attachment and spreading of the host cells encouraging epithelialization. Human amnion allografts were preserved by lyophilization or deep-freezing and subsequently radiation-sterilized with a dose of 3S kGy. It has been observed, however, that lyophilized irradiated allografts are resorbed within a few days, while frozen irradiated ones better adhere to wound and persist even 3 weeks after grafting, therefore, it has been decided to preserve amnion by deep-freezing. Since the beginning of 1998 over 400 preserved radiation-sterilized amnion allografts (with a total surface area over 40,000 cm2) have been prepared at the Central Tissue Bank inWarsaw and distributed to clinics and hospitals throughout the country.
Keywords: Amnion Allograft, growth factors, radiation sterilization, wond dressing, collagens
20 Jan 2022 : Original articleImpact on Waitlist Outcomes from Changes in the Medical Eligibility of Candidates for Simultaneous Liver-Ki...
Ann Transplant In Press; DOI: 10.12659/AOT.934850
19 Jan 2022 : Original articleCarbohydrate Metabolism Disorders in Relation to Cardiac Allograft Vasculopathy (CAV) Intensification in He...
Ann Transplant In Press; DOI: 10.12659/AOT.933420
18 Jan 2022 : Original articlePLGA+Fe₃O₄+PFP Nanoparticles Drug-Delivery Demonstrates Potential Anti-Tumor Effects on Tumor Cells
Ann Transplant In Press; DOI: 10.12659/AOT.933246
Most Viewed Current Articles
29 Dec 2021 : Original articleEfficacy and Safety of Tacrolimus-Based Maintenance Regimens in De Novo Kidney Transplant Recipients: A Sys...
Ann Transplant 2021; 26:e933588
22 Dec 2021 : Original articleComparison of Coronary Artery Calcium Scoring with Dobutamine Stress Echo for Detection of Coronary Artery ...
Ann Transplant 2021; 26:e934163
12 Jan 2022 : Original articleRisk Factors for Developing BK Virus-Associated Nephropathy: A Single-Center Retrospective Cohort Study of ...
Ann Transplant 2022; 27:e934738