重组人表皮生长因子软膏对烧伤创面修复的促进作用

目的　探讨重组人表皮生长因子 (rh EGF)软膏治疗烧伤的有效浓度 ,并观察对创面愈合的促进作用。方法　将 12 0例烧伤患者分为两部分 ,第一部分选择 15例浅 °烧伤患者 ,采用开放实验 ,分三组每组 5例 ,进行三种不同浓度 rh EGF软膏 (0 .5 μg/ g,10 μg/ g,5 0 μg/ g)的疗效比较 ,确定临床使用浓度。第二部分 ,选择浅 °和深 °烧伤患者10 5例为试验对象 ,在第一部分研究的基础上选取最适药浓度 ,进行多中心随机双盲实验 ,所有患者均采用自身对照。以创面愈合为指标 ,判断创面愈合时间 ,并观察创面动态愈合率及不良反应。结果　第一部分患者 10 μg/ g和 5 0 μg/ g组的创面愈合时间差异不显著但较 0 .5 μg/ g组明显缩短 ,有统计学意义 (P<0 .0 1)。第二部分选用 10 μg/ g浓度的 rh EGF软膏与水溶性软膏基质进行随机双盲研究。浅 °创面用药组愈合时间为 (8.39± 2 .2 5 )天 ,空白对照组为 (9.5 2± 2 .5 6 )天 ,组间比较具有统计学意义 (P<0 .0 1) ;用药组不同时间内的愈合率较对照组明显提高 ;深 °创面愈合时间用药组、对照组分别为 (16 .80± 2 .99)天 ,(18.2 7± 3.17)天 ,组间比较有统计学意义 (P<0 .0 1)。结论　rh EGF软膏对烧伤创面有明显的促进修复作用 ,且 10 μg/ g的浓度较为理想

ACCELERATION OF BURN WOUND HEALING WITH TOPICAL APPLICATION OF RECOMBINANT HUMAN EPIDERMAL GROWTH FACTOR OINTMENTS

OBJECTIVE: To investigate the efficiency of recombinant human epidermal growth factor (rhEGF) on burn wound healing and to explore the effective density of the ointments. METHODS: A total of 120 cases of burn in superficial II degree and profound II degree were randomly divided into 2 groups. In the first group of 15 cases of superficial II degree, the wounds were treated by rhEGF ointments of different density, 0.5 microgram/g, 10 micrograms/g and 50 micrograms/g, to screen out the effective density. And in the other 105 cases of the second group, optimal density of the ointments based on the result of the first group were employed to treat the burn wound in superficial II degree and profound II degree, with the self-corresponding wounds of the same degree as control, to study the efficiency of rhEGF on wound healing, according to the wound healing time, and adverse reaction of the ointment. RESULTS: In the first group, the average healing time of superficial II wound treated by ointments of 10 micrograms/g and 50 micrograms/g significantly shortened when compared with that treated by ointments of 0.5 microgram/g(P < 0.01), but there was no obvious difference between the cases treated by ointments of 10 micrograms/g and 50 micrograms/g. In the second group, the healing time of superficial II wound treated by ointments of 10 micrograms/g was (8.39 +/- 2.25) days, (9.52 +/- 2.56) days in the control (P < 0.01); and healing time of profound II burn treated by ointments of 10 micrograms/g was (16.80 +/- 2.99) days, (18.27 +/- 3.17) days in the control (P < 0.01). And healing rates of burn wound at different periods were higher than those of the control. CONCLUSION: The above results indicate that rhEGF ointments can enhance burn wound healing significantly, and the ointment of 10 micrograms/g is a good choice for clinical application.