复方磺胺嘧啶银胶原蛋白烧伤膜的制备及其对大鼠深Ⅱ度烧伤的治疗作用评价

目的 研制复方磺胺嘧啶银胶原蛋白烧伤膜，并考察其对大鼠深Ⅱ度烧伤创面的愈合作用。方法 采用交联法制备复方胶原蛋白膜，利用SD大鼠深Ⅱ度烧伤模型，观察外用胶原蛋白烧伤膜对创面愈合作用的影响。方法 制备后得到乳白色半透明、光滑和具有弹性的凝胶膜状物。胶原蛋白膜可促进创面坏死组织溶脱，烧伤创面愈合，实验组大鼠组织羟脯胺酸含量明显高于对照组（P＜0．05）。创面细胞DNA周期变化，实验组在烧伤后5、7、10天G0／G1细胞百分比低于对照组（P＜0．05），而S期细胞百分比高于对照组（P＜0．05），烧伤创面含水量在烧伤后24、36和48小时明显低于对照组（P＜0．05）。结论 复方磺胺嘧啶银胶原蛋白烧伤膜具有促进大鼠深Ⅱ度烧伤后创面愈合的作用。

The preparation of collagen burn pellicle of compound sulfadiazine silver and assessment of its efficacy in an animal experiment on deep partial thickness burn wound]

OBJECTIVE: To prepare the collagen burn pellicle of compound sulfadiazine sliver and observe its therapeutic effect on deep partial thickness burn wound. METHODS: The initator method was adopted for preparing the collagen burn pellicle of compound sulfadiazine sliver. A model of deep partial thickness burn wound was established in 84 SD rats for the observation of the effect of collagen burn pellicle of compound sulfadiazine sliver on burn wound healing. RESULTS: The collagen burn pellicle of compound sulfadiazine sliver enhanced the coming off of necrotic tissues and the healing of burn wound. The hydroxyproline content of burn wound was higher in the experiment group than that in the comparison groups, (P < 0.05). The percentage of G0/G1-phase in full skin cells of burn wound at 5, 7, 10 and 14 days after burn was lower than that in the comparison groups (P < 0.05). The percentage of S-phase at 5, 7 and 14 days was higher in the experiment group than that in the comparison groups (P < 0.05). The water content in full skin cells of burn wound at 24, 36 and 48 hours after burn was significantly lower in the experiment group than that the comparison groups (P < 0.05). CONCLUSION: The collagen burn pellicle of compound sulfadiazine sliver can enhance wound healing in the management of deep partial thickness burn wound.