摘要:目的探讨湿润烧伤膏(MEBO)干预糖尿病性溃疡创面愈合的作用机制。方法将145只雄性健康SD大鼠随机分为空白组35只及糖尿病模型组110只,采用腹腔注射链脲佐菌素(STZ)制备糖尿病大鼠模型,8周后选空白组30只及糖尿病成模大鼠90只(模型组、MEBO组及贝复济组各30只),制备溃疡模型,成功后MEBO组予湿润烧伤膏纱条、贝复济组予重组牛碱性成纤维细胞生长因子溶液纱条、空白及模型组予生理盐水纱条局部换药处理,每日1次。给药后第3、6、12d,各组分别选10只大鼠,取相同位点创面组织,应用ELISA法检测组织匀浆中AGEs、NF-κB含量,荧光PCR技术检测组织中RAGE mRNA表达。结果与空白组比较,模型组大鼠第3、6、12d创面组织AGEs含量及RAGE mRNA表达量均显著升高(P<0.01),第3d创面组织NF-κB含量较低,第6d、12d含量持续升高(P<0.05或P<0.01)。与模型组比较,MEBO组第3、6、12d创面组织中AGEs含量及RAGE mRNA表达量均显著降低,贝复济组第3、6、12d组织中AGEs含量及第3d RAGE mRNA表达量显著下降,两组第3d创面组织中NF-κB含量均升高,第6、12d均明显下降,差异有显著性意义(P<0.05或P<0.01)。结论 MEBO促进糖尿病性溃疡创面愈合的机制与调控创面组织AGEs、NF-κB及RAGE mRNA的表达有关。
摘要:CONTEXT: Moist exposed burn ointment (MEBO), from China, has been said to revolutionize burn management. OBJECTIVE: Our study was conducted to compare MEBO with conventional management (C) with respect to the rate of wound healing, antibacterial and analgesic effect, and hospital costs. DESIGN: This is a prospective, randomized, controlled clinical trial conducted between 1 March 1997 and 24 October 1998. SETTING: The trial was conducted in a specialized burn facility located in a tertiary referral hospital in a developed and industrialized island-state in Southeast Asia. PATIENTS: We randomly assigned 115 consecutive patients between the ages of 12 and 80 who had partial-thickness thermal burns covering less than 40% of body surface area (BSA) to receive either MEBO or C. Fifty-seven patients were assigned to MEBO and 58 patients to C. The latter group received twice-daily dressing changes; MEBO patients received MEBO every 4 hours. MAIN OUTCOME MEASURES: Patients were hospitalized until 75% BSA had healed. BSA was determined by visual inspection and charted on Lund and Browder charts regularly. Wound healing rate, bacterial infection rate, pain score, and hospitalization costs were recorded. RESULTS: The median time to 75% healing was 17.0 and 20.0 days with MEBO and C, respectively (HR = 0.67, 95% CI = 0.41-1.11, P =.11), suggesting similar efficacy between the 2 modalities. Bacterial infection rates were similar between the 2 groups (HR = 1.10, 95% CI = 0.59-2.03, P =.76). MEBO imparted a greater analgesic effect in the first 5 days of therapy and reduced hospital costs by 8%. CONCLUSIONS: MEBO is as effective as conventional management but is not the panacea for all burn wounds. The use of MEBO eases the management of face and neck burns and facilitates early institution of occupational therapy in hand burns. It confers better pain relief such that fewer opiates are used during the first 5 days after burn injury.
摘要:Skin wounds represent an enormous clinical and financial problem in equine. The present study evaluated the effect of Panthenol gel and Mebo ointment on metacarpal wounds healing in donkeys. This experimental study was carried out on eighteen adult donkeys divided into three groups each of six donkeys. All animals were exposed to creation of 2?× 2 cm full-thickness skin wound on the dorsal aspect of the metacarpal regions of both forelimbs. All the wounds were cleaned daily with sterile gauze soaked with sterile distilled water. For the Panthenol gel group, 1 finger tip unit (0.5?g) of Panthenol gel was applied once daily over the wound surfaces. For the Mebo ointment group, 1 finger tip unit (0.5?g) of Mebo ointment was applied once daily over the wound surfaces. For control group, the wounds were cleaned with sterile gauze soaked with sterile distilled water without application of any treatment. The wound healing process was compared by gross observation, geometrical assessments of percentage wound contraction, percentage wound epithelialization, percentage wound healing, and histopathological examination. The wound contraction, wound epithelialization, and wound healing percentages in the Panthenol gel group were significantly higher than other groups and by the end of seventh week, all animals’ wounds in the Panthenol gel group had complete healing. Mebo ointment group had no a significant effect on wound epithelialization and wound healing percentages. In conclusion, the study recommended the use of Panthenol gel as an effective and low-cost wound healing promoting agent for full-thickness skin wounds in donkeys.
摘要:Burns expose the deeper tissues of the skin or body to invasive microbes. Topical preparations for treating burn wounds, to be useful, should ideally have antibiotic power and promote healing. Silver compounds have been the mainstay of topical burn treatment for decades. However, most chemical substances retard wound healing. Several natural agents such as honey and moist exposed burn ointment (MEBO) are believed to protect wounds from infection and promote healing without causing any of the adverse effects of purified chemicals. In this study, we compared the wound healing properties of MEBO, a herbal preparation of Chinese origin, with silver sulphadiazine (SSD), a long-standing conventional burn dressing. Ten adult Sprague Dawley rats were divided into two groups. They were housed in separate cages and received partial-thickness burn wounds on their dorsal skin. They were then treated with MEBO and SSD. The wounds were inspected daily until day 8, when all the animals were sacrificed, perfused with normal saline, and had their wounds excised and prepared for histology. It was found that animals in both groups were well preserved. No clinical infections occurred. Wound healing was at an advanced stage by day 8 in all the animals. Clinical and histological examination showed that the two agents gave the animals comparable protection and healing possibilities. It is concluded that MEBO is a suitable and efficacious alternative to conventional silver-based topical therapies for treating partial-thickness burn wounds.