摘要：Objective: To investigate the mechanism of the effect of Moist Exposed Burn Therapy (MEBT) and Moist Exposed Burn Ointment (MEBO) on the spontaneous repair and healing of superficial third degree burn wound involving fatty layer. Method: A series of skin tissue samples were taken from deep burn wounds of 2 cases. Immunocytochemistry method, biotin-avidin DCS system, and indirect immunofluorescence technique were applied. Mouse anti-human keratin type 19 monoclonal antibody was used to detect regenerative epidermal stem cells in wound tissues. Results: Epidermal regenerative stem cells emerged at 24 hours post burn, and the number of epidermal regenerative stem cell increased on day 4 post burn. On days 7 and 14 post burn, the number of epidermal stem cells increased to the peak level. On days 21 and 28 post burn, it decreased and disappeared gradually as burn wound progressed to healing. Conclusion: MEBT/MEBO has the effect of promoting the activation and proliferation of epidermal regenerative stem cells in ...

摘要：烧伤湿性医疗技术(MEBT/MEBO)现已形成了较为系统的皮肤原位再生学术体系,由于PBL教学法强调培养学生分析问题和解决问题的能力,强调基础学科与临床医学的密切联系,通过尝试在七年制医学生外科学临床教学中引入PBL(Problem-based learning teaching method)教学法,以期达到提高学生的临床综合分析能力和临床操作技能之目的。作者从MEBT/MEBO教学目标、问题的设计及小组讨论方案各方面提出了具体需要解决的问题,对PBL应用于MEBT/MEBO教学就必要性、优越性、缺陷性及存在的问题等方面进行思考和分析,并提出了其发展展望。

摘要：目的:观察烧伤湿性医疗技术／美宝湿润烧伤膏(MEBT／MEBO)对大鼠深Ⅱ度烧伤创面的细胞、毛细血管形态结构的变化,探讨其改善深Ⅱ度烧伤创面进行性加深的作用机制。方法:SD大鼠20只,背部两侧造成40个对称性圆环形深Ⅱ度烧伤创面,每个创面中央留有一个同心圆岛状区(淤滞区),随机自身对照,治疗组侧使用MEBT／MEBO进行治疗,每6小时换药一次,对照组侧不用任何措施。动态观察烧伤大鼠于伤后2h、6h、8h、12h、24h、72h共6个时相点的创面的病理切片观察皮肤组织形态结构变化和淤滞区切片进行组织病理学评分。结果:①创面细胞形态学改变(病理检查):伤后8h毛细血管扩张、细胞水肿,炎性浸润最明显;治疗组中央淤滞区无进行性坏死,伤后24h后毛细血管扩张、细胞水肿、炎性浸润减轻;对照组2个创面呈进行性坏死(占10％),中央淤滞区细胞水肿、炎性浸润明显,毛细血管血栓形成,伤后72h水肿仍明显,真皮坏死加重;②淤滞区组织病理学评分:治疗组与对照组相比,治疗侧淤滞区的表皮结构相对完整、胶原纤维束相对正常,粒细胞浸润小于5个／400倍视野。结论:MEBT／MEBO能防止大鼠深Ⅱ度烧伤创面进行性加深,促进烧伤后的创面愈合,其作用机制为MEBT／MEBO能使创面局部毛细血管扩张、细胞水肿、炎性浸润减轻,防止微血栓生成,有效改善创面局部的微环境,挽救间生态组织。

摘要：目的:观察MEBT／MEBO治疗面部硝火深度烧伤的效果。方法:随机将面部硝火烧伤在深Ⅱ-浅Ⅲ度的240例病人分为两组:130例创面应用MEBT／MEBO换药治疗(治疗组);110例创面应用磺胺嘧啶银混悬液换药治疗(对照组)。观察两组在换药过程中病人感染发生率、愈合时间、瘢痕发生率、愈后皮肤瘙痒或疼痛程度、皮肤色素沉着情况。结果:治疗组在感染发生率、愈合时间、瘢痕发生率、愈后皮肤瘙痒或疼痛程度方面都明显低于对照组。结论:MEBII／MEBO治疗面部硝火深度烧伤,创面愈合过程顺利,疗效可靠,有利于外观和功能恢复。