Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan.
Department of Surgery, Tainan Municipal An-Nan Hospital, China Medical University, Tainan 709204, Taiwan.
Int J Mol Sci. 2022 May 13;23(10):5456. doi: 10.3390/ijms23105456.
As a conventional medical dressing, medical gauze does not adequately protect complex and hard-to-heal diabetic wounds and is likely to permit bacterial entry and infections. Therefore, it is necessary to develop novel dressings to promote wound healing in diabetic patients. was used to produce unmodified bacterial cellulose, which is rarely applied directly to diabetic wounds. The produced cellulose was evaluated for wound recovery rate, level of inflammation, epidermal histopathology, and antimicrobial activities in treated wounds. Diabetic mices' wounds treated with bacterial cellulose healed 1.63 times faster than those treated with gauze; the values for the skin indicators in bacterial cellulose treated wounds were more significant than those treated with gauze. Bacterial cellulose was more effective than gauze in promoting tissue proliferation with more complete epidermal layers and the formation of compact collagen in the histological examination. Moreover, wounds treated with bacterial cellulose alone had less water and glucose content than those treated with gauze; this led to an increase of 6.82 times in antimicrobial protection, lower levels of TNF-α and IL-6 (39.6% and 83.2%), and higher levels of IL-10 (2.07 times) than in mice wounds treated with gauze. The results show that bacterial cellulose produced using beneficially affects diabetic wound healing and creates a hygienic microenvironment by preventing inflammation. We suggest that bacterial cellulose can replace medical gauze as a wound dressing for diabetic patients.
作为一种传统的医用敷料,医用纱布不能充分保护复杂和难以愈合的糖尿病伤口,并且容易允许细菌进入和感染。因此,有必要开发新型敷料以促进糖尿病患者的伤口愈合。 被用于生产未经修饰的细菌纤维素,而细菌纤维素很少直接应用于糖尿病伤口。对所生产的纤维素进行了伤口恢复率、炎症水平、表皮组织病理学和处理伤口中的抗菌活性的评估。用细菌纤维素处理的糖尿病小鼠的伤口愈合速度比用纱布处理的伤口快 1.63 倍;细菌纤维素处理的伤口的皮肤指标值比用纱布处理的伤口更显著。在组织学检查中,细菌纤维素在促进组织增殖方面比纱布更有效,具有更完整的表皮层和更紧凑的胶原蛋白形成。此外,与用纱布处理的伤口相比,单独用细菌纤维素处理的伤口的水分和葡萄糖含量更少;这导致抗菌保护增加了 6.82 倍,TNF-α 和 IL-6 水平(39.6%和 83.2%)降低,IL-10 水平(2.07 倍)升高。结果表明,使用 生产的细菌纤维素有益于糖尿病伤口愈合,并通过防止炎症创造一个卫生的微环境。我们建议细菌纤维素可以替代医用纱布作为糖尿病患者的伤口敷料。