促愈瘢痕消皮膚局部用藥對動物毒性作用的實驗分析
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作者:閆宏山 崔光懷 劉振中 趙建平 楊加峰 蔡景龍
【摘要】 目的 探討促愈瘢痕消(70%)促愈瘢痕消對動物皮膚的毒理作用。 方法 40只新西蘭大白兔,隨機分為3組。①組12只兔子隨機分為A、B、C 3組,每組4只,分別為賦形劑組、促愈瘢痕消臨床用藥劑量組(44%)、促愈瘢痕消大劑量組(70%)。進行雙側背部脫毛,左側刀片搔刮至均勻出血,右側用藥7 d觀察藥物經完整皮膚的急性毒性作用;左側用藥7 d觀察藥物經損傷皮膚急性毒性作用。②組4只兔子每只背部對稱脫毛各2塊,藥物分組同上,左側均涂賦形劑,右側頭側脫毛區涂促愈瘢痕消(44%),右側尾側區涂促愈瘢痕消(70%)。觀察用藥7 d后對完整與損傷皮膚刺激性。③組24只兔子隨機分為A、B、C 3組,每組8只,分別為賦形劑組、促愈瘢痕消(44%)組、陽性對照組(1%2,4-二硝基氯代苯)組,進行左側背部脫毛,各組外用藥物進行初次接觸及激發試驗,觀察藥物對動物皮膚的過敏反應。結果 促愈瘢痕消經皮膚對動物完整皮膚及損傷皮膚無急性毒性、刺激性;藥物對完整皮膚亦無激發過敏反應。 結論 促愈瘢痕消短期應用對動物皮膚是安全的。 【關鍵詞】 促愈瘢痕消;經皮膚急性毒性;皮膚刺激性;皮膚過敏反應 【Abstract】 Objective To study the acute toxicity, irritation and sensitivity effect of Cuyubanhenxiao to New Zealand big white rabbit’s nomal skin and impaired skin.Methods Fourty New Zealand big white rabbits were pidesed into 3 groups.①12 rabbits were randomized into 3 groups, each group is 4 rabbits. The medicine is Vaseline,Cuyubanhenxiao(44%),Cuyubanhenxiao(70%).They were separately applied to A,B,C 3 groups. Each rabbit with 50 cm2 was molted on both sides of backbone to take the acute skin toxicity test. The right sides every group were used medicine(A,B,C) at 7 days, the nomal skin acute toxic effect was observed. The left sides were scratched to even hemorrhage and spreaded medicine on every group rabbit. At 7 days, the damaged skin toxic effect was observed.②4 rabbits were molted on both sides of backbone of every rabbit and there were 2 molted areas on each side of every rabbit.The medicine group was completely same with the first group.The left side of every molted area was spreaded by Vaseline. The right molted areas of near to the head were spreaded by B and the oher areas were spreaded by C 7 days later, the nomal and damaged skin irritation effect was observed.③24 rabbits were randomized into A, B,and C 3 groups, the number of each group was 8. The medicine was Vaseline, Cuyubanhenxiao(44%), 1%2,4Dinitrochlorobenzol. Each rabbit with 50 cm2 was molted on the left sides of backbone to take the the initial contact and the stimulation test. The sensitivity effect of medicine was observed.Results There were no acute toxicity, irritation effect, when Cuyubanhenxiao was spreaded on the rabbits’ normal and damaged skin and no sensitivity effect phenomenon to rabbits’ nomal skin.Conclusion It’s safe to appl to the skin of animals for shortterm. 【Key words】 Cuyubanhenxiao,acute skin toxicity,skin irritation,skin sensitivity effect 創傷、燒傷、外科手術等常引起不可避免的創面,然而創面的晚期愈合常常導致瘢痕的增生。創面的晚期愈合增加了感染機會,瘢痕增生給患者美觀甚至功能造成嚴重影響。目前,國內外用于促進創面愈合及治療瘢痕的藥物種類繁多, 但經臨床使用后,療效好者甚少。本課題組研制的中藥制劑促愈瘢痕消,經動物實驗證明能促進創面愈合、預防瘢痕增生且無明顯的毒性反應。本文僅就其動物毒理實驗進行論述。 1 材料與方法 1.1 試劑 實驗用促愈瘢痕消由山東大學第二醫院美容整形燒傷外科研制。此中藥制劑主要成分由土元、水蛭、莪術、蜈蚣、全蝎和五倍子(均由山東大學齊魯醫院中藥房提供),采用超細微粉化新工藝精制而成。實驗藥物分臨床用藥劑量(藥物濃度為44%)及大劑量(藥物濃度為70%)。 對照用賦形劑為凡士林軟膏(山東大學第二醫院藥劑室提供)、硫化鈉、2,4二硝基氯代苯(濟南泰瑞達藥化有限公司提供)。 1.2 動物 實驗動物為新西蘭大白兔,雌雄不限,體質量2.5~3.0 kg,由山東省農科院提供(合格證號:scxk齒20040013)。 1.3 實驗方法 1.3.1 促愈瘢痕消經皮膚急性毒性試驗:將12只新西蘭大白兔隨機分為3組,每組4只,A組:賦形劑組;B組:促愈瘢痕消臨床用藥劑量組(44%);C組:促愈瘢痕消大劑量組(70%),用8%的硫化鈉給白兔右側背部脫毛50 cm2,用清水洗掉化學試劑,立即給脫毛區涂藥,每日涂藥使藥膏保持濃度1周,期間觀察動物的活動、皮毛光澤、飲食、體重、死亡情況。隨后對白兔左側脫毛50 cm2,并用手術無菌刀片在脫毛區進行搔刮至均勻出血,立即在擦傷部位涂藥,用藥7 d,觀察指標同上,并與對照組比較。 1.3.2 促愈瘢痕消的皮膚刺激性試驗:將4只新西蘭大白兔背部對稱脫毛4塊,每塊50 cm2。A:賦形劑,B:促愈瘢痕消(臨床用藥劑量組44%),C:促愈瘢痕消大劑量(70%)。脫毛后清水清洗脫毛區,左側均涂賦形劑(A),右側頭側脫毛區涂B,右側尾側區涂C。涂藥后24 h溫水清洗藥物及賦形劑,觀察局部皮膚紅斑和水腫反應。連續用藥7 d后,清洗掉藥物觀察24 h、72 h后的皮膚反應。隨后脫毛區用手術無菌刀片搔刮至均勻出血,立即涂藥物及賦形劑,觀察指標同上。
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