曲安奈德联合A型肉毒毒素治疗烧伤增生性瘢痕的临床效果

研究曲安奈德联合A型肉毒毒素治疗烧伤增生性瘢痕患者的效果。方法 选取2019年1月- 2021年1月贵州省人民医院收治的烧伤增生性瘢痕患者100例为研究对象，按照随机数字表法分为对照组和 观察组，各50例。对照组采取曲安奈德注射治疗，观察组采取A型肉毒毒素联合曲安奈德注射治疗，比较 两组TGF-β1和BMP-7含量、瘢痕情况、疼痛程度、生活质量及不良反应发生情况。结果 观察组治疗后 瘢痕组织中TGF-β1含量低于对照组，BMP-7含量高于对照组（P ＜0.05）；观察组治疗后VSS和VAS评分 均低于对照组，SF-36评分高于对照组（P＜0.05）；观察组不良反应发生率为8.00%，低于对照组的38.00% （P＜0.05）。结论 针对烧伤后增生性瘢痕患者，曲安奈德与A型肉毒毒素联合治疗的疗效确切，可改善瘢 痕程度及疼痛程度，降低不良反应发生率，提升生活质量。     

A型肉毒毒素与曲安奈德治疗瘢痕疙瘩的疗效和安全性比较

目的:探究A型肉毒毒素与曲安奈德治疗瘢痕疙瘩的疗效和安全性。方法:收集笔者医院2017年1月-2019年6月收治的80例瘢痕疙瘩患者的临床资料,依据治疗方法分为观察组(40例)和对照组(40例)。观察组采用A型肉毒毒素局部注射治疗,对照组采用曲安奈德局部注射治疗。比较两组总有效率、疼痛视觉模拟评分(Visual analogue scale,VAS)、皮损厚度及不良反应情况。结果:观察组有效率为95.00%显著高于对照组的72.50%,差异有统计学意义(P<0.05)。治疗后1个月、2个月和4个月观察组相同时间点的VAS评分、皮损厚度均显著低于对照组,差异均有统计学意义(P<0.05)。观察组不良反应发生率为10.00%,对照组为27.50%,组间比较差异无统计学意义(P>0.05);治疗4个月后,观察组无复发,对照组复发6例,复发率为15.00%,组间比较差异有统计学意义(P=0.010)。结论:A型肉毒毒素治疗瘢痕疙瘩的疗效比曲安奈德更好,能有效降低瘢痕厚度、减轻患者疼痛,复发率低,且不良反应轻微,值得推广。     

A型肉毒毒素预防与治疗早期增生性瘢痕的临床初探

目的 探索A型肉毒毒素(botulinum toxin type A,BTXA)对早期增生性瘢痕(hypertrophic scar,HTS)的临床预防及治疗效果.方法 早期HTS周围及组织内注射BTXA,观察瘢痕注射药物后形态学变化、组织学变化及临床症状表现;手术切口缝合后即刻向周围肌肉浅层注射BTXA,观察远期瘢痕愈合情况.结果 局部注射BTXA可以明显减轻早期HTS疼痛和瘙痒症状,促使瘢痕组织萎缩、软化;组织切片HE染色显示HTS组织内结构有所变化.同时,手术切口周围肌肉浅层注射BTXA可以降低术后切口HTS的发生、发展概率.结论 BTXA对早期HTS具有一定程度的治疗和预防作用,其疗效可能是通过降低瘢痕两侧张力及活动,干扰瘢痕内小神经传导,以及影响成纤维细胞增殖分化,促进凋亡进而减少胶原合成而起作用.     

注射A型肉毒毒素在病理性瘢痕防治中的应用进展

增生性瘢痕和瘢痕疙瘩均属于病理性瘢痕,不仅会影响美观,还可能伴有瘙痒、疼痛等临床表现。然而,增生性瘢痕和瘢痕疙瘩发生的明确机制尚未完全清楚,治疗措施各异。A型肉毒毒素(Botulinum toxin type A,BTXA)是一种神经毒素,在肌肉痉挛性疾病的治疗和除皱美容方面均得到了广泛应用。近年来,有学者提出注射BTXA来预防和治疗病理性瘢痕,并进行了相关的基础与临床研究。本文着重对BTXA在治疗和预防增生性瘢痕和瘢痕疙瘩中的疗效、作用机制、使用方法、问题与展望等各方面的研究进展进行综述。     

咬肌内注射A型肉毒毒素和曲安奈德对大鼠下颌骨发育影响的实验研究

目的 探讨咬肌内注射A型肉毒毒素和曲安奈德对大鼠下颌骨发育的影响.方法 取28日龄雄性Wistar大鼠为实验对象,随机分为4组:A型肉毒毒素组(B组,n=8)、曲安奈德组(T组,n=8)、A型肉毒毒素+曲安奈德组(BT组,n=8)、对照组(C组,n=6),每组大鼠取右侧咬肌并向肌内注射相应的药物,左侧注射等量的生理盐水,空白对照组仅麻醉;大鼠75日龄时行头颅CT平扫+三维重建,测量各组大鼠下颌骨长度、高度等线距后处死,切取双侧咬肌称其质量.结果 注射侧咬肌质量B组、BT组小于对照侧;B组注射侧下颌骨长度Ⅲ(下颌角至下颌中切牙牙槽骨前下点的距离)、下颌骨高度Ⅱ(冠突到下颌角最下点的距离)小于对照侧;BT组注射侧下颌骨高度Ⅱ小于对照侧;B组的下颌骨高度Ⅱ小于其他3组,BT组小于C组;下颌骨高度Ⅲ(髁突到下颌角最下点的距离)B组和BT组小于C组.结论 幼龄大鼠咬肌内注射A型肉毒毒素,成年后下颌骨高度减小,下颌骨长度、下颌间距无明显影响;注射曲安奈德对大鼠下颌骨发育影响不明显.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

目的 研究A型肉毒毒素对兔耳增生性瘢痕组织的影响.方法 8只日本大耳白兔,体重3 kg,建立兔耳增生性瘢痕模型.将兔耳创面分为A型肉毒毒素治疗组(T组)和瘢痕组(S组),每组48个创面.大体观察创面愈合时间和瘢痕增生情况.术后28 d,同法另取4只兔子的兔耳腹面健康皮肤为空白组(B组),收集标本.测量S、T组标本HE切片的瘢痕增生指数HI,流式细胞仪分析2组标本中成纤维细胞的细胞周期,western-blot检测S、T、B组标本中Ⅰ、Ⅲ型胶原的蛋白表达.结果 ①T组标本的瘢痕增生指数HI较S组显著降低,P<0.01;②蛋白水平上,T组的胶原Ⅰ、Ⅲ蛋白表达和胶原Ⅰ/Ⅲ比值均较s组显著降低,P<0.01;③S组分布于G2-M期和S期的成纤维细胞较T组显著增多,而静止期G0-G1的细胞则显著减少,P<0.05.结论 A型肉毒毒素局部应用能抑制兔耳增生瘢痕的形成.抑制成纤维细胞的增殖活性,减少瘢痕组织中Ⅰ、Ⅲ型胶原的合成,降低胶原Ⅰ/Ⅲ比值,为其治疗增生性瘢痕的临床应用提供了一定的理论依据.     

A型肉毒毒素抑制病理性瘢痕形成机制的研究进展

A型肉毒毒素(botulinum toxin type A,BTXA)是一种神经调节剂,常用于医学美容领域.现已有大量研究显示,局部注射BTXA可安全有效地防治瘢痕,然而确切的分子机制仍不清楚.目前认为,BTXA可能通过降低伤口张力、调节miRNA水平、下调促纤维化因子表达、抑制成纤维细胞收缩、减少成纤维细胞数量和抑制...     

不同时期注射A型肉毒毒素对兔耳增生性瘢痕的影响

目的 探讨不同时期注射A型肉毒毒素对兔耳增生性瘢痕的影响,以期发现A型肉毒毒素抑制瘢痕的最佳时间.方法 自2018年9月到2019年3月华中科技大学同济医学院动物实验中心选取健康的新西兰大耳兔18只,兔耳健全,雌雄不限,体质量2～3 kg,制作瘢痕模型.根据A型肉毒毒素注射时间分为即刻组(A组)、10 d组(B组)、3...     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素局部应用对兔耳增生性瘢痕创面愈合和瘢痕增生的影响

Objective To investigate the effect of botulinum toxin type A (Botox A) injection on hypertrophic scar in rabbit ear model. Methods The hypertrophic scar model was established in 16 Japanese rabbits' ears. These wounds were divided into two groups as group T(treated with Botox A, n =48) and group S (not treated, n = 48). The wounds healing times and scar hypertrophy were observed with 8 specimen of normal skin at the rabbit ears as sham group B. HE stain was used to assess the hypertrophic index(HI). The expression of collagen Ⅰ and Ⅲ was tested by western-blot. The cell cycle of fibroblasts was studied by flow cytometry. Results The [] was significantly lower in group T than in group S(P < 0.01). The expression of collagen Ⅰ and Ⅲ, as well as the ratio of Ⅰ to Ⅲ, was markedly stronger in group S than in group T(P < 0.01). Compared with group T, more fibroblasts were in G2-M in gToup S and fewer in G0-G1 (P <0.05). Conclusions Local injection of Botox A can inhibite the formation of hypertrophic scar and the activity of fibroblasts in rabbit ear model. It can significantly decrease the expression of collagen Ⅰ and Ⅲ in hypertrophic scar, as well as the ratio of collagen Ⅰ to Ⅲ. It serves as the basis for the treatment of hypertrophic scar with Botox A.     

A型肉毒毒素联合复方倍他米松治疗大面积增生性瘢痕的临床疗效观察

目的探讨A型肉毒毒素联合复方倍他米松治疗大面积增生性瘢痕的临床效果。方法回顾性分析2017年3月至2019年3月于北部战区总医院烧伤整形科收治的39例大面积增生性瘢痕患者的临床资料,根据采用的治疗方法分为A组:A型肉毒毒素联合复方倍他米松瘢痕内注射组(13例);B组:A型肉毒毒素瘢痕内注射组(12例);C组:复方倍他米松瘢痕内注射组(14例)。记录治疗的总有效率,参照温哥华瘢痕评分量表(vancouver scar score sheet,VSS)对3组患者的瘢痕色泽、血管分布、柔软度进行综合评分;采用彩色多普勒超声诊断仪测量瘢痕厚度,并参照视觉模拟评分量表(visual analogue scale,VAS)评价患者的痛痒觉改善情况;记录不良反应发生情况;随访6个月。结果A组的总有效率(92.31%)、VSS值、瘢痕厚度、VAS值评价均明显优于B组(75.00%)和C组(50.00%),其差异有统计学意义(P<0.05)。A、B组经3次治疗后,痛痒症状明显缓解,病情趋于稳定。治疗6个月随访时A组患者未再复发,B组复发2例。3组中有极个别患者在治疗后偶发针孔周围皮肤红肿,于1~2 d自行缓解,未发生严重的不良反应。结论A型肉毒毒素联合复方倍他米松治疗大面积增生性瘢痕安全有效,能提高单次治疗的有效面积及效果并减少激素用量及其并发症,值得临床推广应用。     

A型肉毒毒素治疗挛缩性瘢痕

目的 探索A型肉毒毒素(botulinum toxin type A,BTXA)治疗挛缩性瘢痕的疗效.方法 选取26例挛缩性瘢痕患者,随机分为A型肉毒毒素组(BTXA组)和曲安奈德组(TAC组,对照组),注射药物治疗前测量各组患者瘢痕长轴长度,并于注射后再次测量其长度,1次/月,共6次,通过比较治疗前后差值评价药物疗效.切取各组瘢痕组织行免疫组织化学检测,观察α平滑肌肌动蛋白(α-SMA)及肌球蛋白-Ⅱ的表达情况.结果 药物作用1个月后,BTXA组较TAC组瘢痕挛缩程度明显减轻(P＜0.05),尤以6个月时差异最明显,BTXA组和TAC组瘢痕长轴长度差值分别为(1.23±0.42) cm和(0.56±0.33) cm.免疫组织化学结果显示,BTXA组瘢痕内α-SMA及肌球蛋白-Ⅱ表达较TAC组明显减少(P＜0.05).结论 A型肉毒毒素治疗挛缩性瘢痕操作简单、效果明显,值得推广应用.     

A型肉毒毒素在瘢痕治疗中的临床应用及机制探讨

病理性瘢痕不仅会引起局部躯体不适,更会对患者的心理产生影响。随着研究的深入,目前A型肉毒毒素（BTX-A）已被逐渐应用于瘢痕的临床治疗。本文归纳了BTX-A在瘢痕治疗中早期减张、抑制结缔组织增生、减轻皮肤炎症这3种作用机制,并总结了其在不同类型瘢痕治疗中的临床应用。但目前尚未对BTX-A注射治疗瘢痕的时间、方式及配比制...