1. Esophageal replacement by hydroxylated bacterial cellulose patch in a rabbit model
- Author
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Tianyi Zhang, Feng Li, Fang Liu, Wenbo Qian, Zhu Changlai, Wang Yingjie, and Qingsheng You
- Subjects
medicine.medical_specialty ,Pathology ,Transplants ,Anastomotic Leak ,Esophageal Diseases ,Hydroxylation ,Biopolymers ,Esophagus ,Animals ,Humans ,Medicine ,Cellulose ,Survival rate ,Artificial esophagus,kombucha,bacterial cellulose,biological material ,Wound Healing ,Tissue Engineering ,business.industry ,Esophageal disease ,Regeneration (biology) ,Weight change ,General Medicine ,Plastic Surgery Procedures ,medicine.disease ,Surgery ,Esophageal Tissue ,Disease Models, Animal ,Stenosis ,Treatment Outcome ,medicine.anatomical_structure ,Rabbits ,business ,Wound healing - Abstract
Background/aim: To repair esophageal defects by hydroxylated and kombucha -synthesized bacterial cellulose (HKBC) patch in a rabbit model. Materials and methods: Semicircular esophageal defects 1 cm in length of the cervical esophagus were initially created in 18 Japanese big-ear rabbits and then repaired with HKBC patch grafts. The clinical outcomes including survival rate, weight change, food intake, and hematological and radiologic evaluation were observed. After X-ray evaluation, the rabbits were sacrificed sequentially at 1, 3, and 6 months for histopathologic analysis with light microscopy and scanning electron microscopy. Results: Survival rate during the first month was 88.9% (n = 16). Two rabbits died from anastomotic leakage during the entire follow-up. Postoperatively, feeding function and body weight were gradually restored in the surviving animals. No hematological abnormalities were found, and no obvious anastomotic leakage, stenosis, or obstruction was observed under X-ray examination. The histopathologic results showed a progressive regeneration of the esophagus in the graft area, where the neo-esophagus tissue had characteristics similar to native esophageal tissue after 3 months of surgery. Conclusion: HKBC is beneficial for esophageal tissue regeneration and may be a promising material for esophageal reconstruction.
- Published
- 2015