碱性成纤维细胞生长因子对兔耳创面愈合过程中瘢痕形成的影响

目的 探讨碱性成纤维细胞生长因子(bFGF)对兔耳瘢痕模型的影响作用.方法 建立48个兔耳增生性瘢痕模型,将其随机分为bFGF治疗组与磷酸盐缓冲液(PBS)对照组,观察bFGF对创面愈合过程中瘢痕形成的影响.结果 形态学分析结果显示治疗组3个月后瘢痕外观、厚度及质地均优于对照组,表现出良好的愈合质量;对照组羟脯氨酸(HPr)表达较高,且随时间表现为增高趋势,伤后3个月达到高峰;而bFGF治疗组HPr表达均有不同程度的下降;逆转录-聚合酶链反应(RT-PCR)结果显示bFGF可以抑制CO Ⅰ mRNA的表达,但对COⅢmRNA表达无明显影响;Western blot结果显示bFGF可以促进MMP-1的合成,且随着时间延长表现为增高趋势,具有一定的时间相关性.结论 bFGF可以通过增加MMP-1合成、促进胶原蛋白降解而减少瘢痕的形成.     

无张力疝修补术治疗腹股沟疝40例临床效果分析

选取我院2010年3月～2012年9月收治的40例采用无张力疝修补术治疗的腹股沟疝患者的临床资料。结果所有患者均无切口感染发生,术后发生并发症1例,并发症发生率为2.5%,未发生补片排斥病例,无1例复发。无张力疝修补术方法简便、复发率低、并发症少,安全可靠,是一种适宜广泛推广的术式。     

荷负电气溶胶治疗对大鼠烫伤创面白细胞介素-8、10表达的影响及意义

目的 观察荷负电气溶胶治疗对大鼠烫伤创面愈合过程中白细胞介素(IL)-8、IL-10表达的影响,探讨荷负电气溶胶治疗促进创面愈合的作用机制.方法 制作SD大鼠深Ⅱ度烫伤模型,采用分组对照方法,将40只鼠随机分为治疗组(n1=20)和对照组(n2=20).治疗组应用荷负电气溶胶治疗,每次1.5 h,每天2次,直至创面愈合;对照组不作荷负电气溶胶治疗.伤后第1～11天分别取创面标本制作切片,采用免疫组织化学和图像分析方法,检测创面愈合过程中IL-8和IL-10表达水平.结果 创面平均愈合时间治疗组为(7.00±1.15)d,对照组为(9.00±1.34)d,治疗组创面愈合时间明显提前(P＜0.01).免疫组织化学显示,两组IL-8均在伤后第1天开始表达.主要位于多核粒细胞和单核细胞;第3天表达明显增多达高峰,并见大量成纤维细胞表达,治疗组的峰值明显低于对照组,差异有统计学意义(P＜0.01),第5～11天表达水平迅速下降.两组IL-10伤后第1天在淋巴细胞和单核细胞均有表达;第3天开始有角质细胞表达并达高峰,第5～11天表达水平缓慢下降,但治疗组要明显高于对照组,第3～11天差异有统计学意义(P＜0.01).结论 荷负电气溶胶治疗能有效抑制创面IL-8的表达及促进IL-10的表达,缩短炎症进程,从而加速创面愈合.

Abstract：

Objective To discuss the influence of aerosol bioelectricity on the expression of interleukin (IL) -8 and IL-10 in wound healing of burned rats. Methods The deep Ⅱ degree scalding models were established in Sprague Dawley (SD) rats. Rats were randomly divided into experimental group (n1 =20) and control group (n2 =20). The rats in experimental group were treated with aerosol bioelectricity.Samples were collected at the first to eleventh day post-scalding. Immunohistochemistry and image analysis methods were conducted to examine the expression of IL-8 and IL-10 in both experimental and control groups. Results The average wound healing time in experimental group was 7. 00 ± 1. 15 days, and that in control group was 9. 00 ± 1. 34 days. IL-8 and IL-10 were observed mainly in polylmorphonuclear and mononuclear cells in both experimental and control groups on the 1 st day. On the third day, fibroblasts abounded, IL-8 expression was increased evidently and reached a peak. The peak value (6. 73 ± 1. 36) in experimental group was lower significantly than that in control group ( 2. 85 ± 0. 72, P ＜ 0. 01). From the 5th to 11th day, IL-8 expression was declined rapidly. IL-10 was expressed in keratode cells and had the peak value in experimental group (1. 24 ±0. 15) and control group (5. 69 ± 1. 32) on the 3rd day. IL-10 expression was declined gradually from the 5th to 11th days. The expression level of IL-10 in experimental group was significantly higher than in control group from the 3rd day to 11th days post-scalding (P＜0. 01). On the 3rd day, both IL-8 and IL-10 in experimental and control groups were expressed abundantly , and there was negative relationship between them (r = - 0. 862, P ＜ 0. 01). Conclusion Aerosol bioelectricity can indicate active cells proliferation through down-regulating the expression of IL-8 and up-regulating the expression of IL-10, accelerating burned wound healing.     

荷负电气溶胶治疗对大鼠烫伤创面白细胞介素-8、10表达的影响及意义

Objective To discuss the influence of aerosol bioelectricity on the expression of interleukin (IL) -8 and IL-10 in wound healing of burned rats. Methods The deep Ⅱ degree scalding models were established in Sprague Dawley (SD) rats. Rats were randomly divided into experimental group (n1 =20) and control group (n2 =20). The rats in experimental group were treated with aerosol bioelectricity.Samples were collected at the first to eleventh day post-scalding. Immunohistochemistry and image analysis methods were conducted to examine the expression of IL-8 and IL-10 in both experimental and control groups. Results The average wound healing time in experimental group was 7. 00 ± 1. 15 days, and that in control group was 9. 00 ± 1. 34 days. IL-8 and IL-10 were observed mainly in polylmorphonuclear and mononuclear cells in both experimental and control groups on the 1 st day. On the third day, fibroblasts abounded, IL-8 expression was increased evidently and reached a peak. The peak value (6. 73 ± 1. 36) in experimental group was lower significantly than that in control group ( 2. 85 ± 0. 72, P ＜ 0. 01). From the 5th to 11th day, IL-8 expression was declined rapidly. IL-10 was expressed in keratode cells and had the peak value in experimental group (1. 24 ±0. 15) and control group (5. 69 ± 1. 32) on the 3rd day. IL-10 expression was declined gradually from the 5th to 11th days. The expression level of IL-10 in experimental group was significantly higher than in control group from the 3rd day to 11th days post-scalding (P＜0. 01). On the 3rd day, both IL-8 and IL-10 in experimental and control groups were expressed abundantly , and there was negative relationship between them (r = - 0. 862, P ＜ 0. 01). Conclusion Aerosol bioelectricity can indicate active cells proliferation through down-regulating the expression of IL-8 and up-regulating the expression of IL-10, accelerating burned wound healing.     

严重烧伤后应激性溃疡的综合防治

目的探讨严重烧伤后应激性溃疡的致病原因及防治方法。方法对1985年4月至2006年4月间收治的严重烧伤患者中并发应激性溃疡的38例患者临床资料进行回顾性分析。结果442例严重烧伤患者中，并发应激性溃疡者38例，发病率为8．6％；并发应激性溃疡者38例中死亡13例，病死率为34．2％。结论严重烧伤后应激性溃疡的发生与休克、感染等应激因素有关，因此积极消除诱发因素、加强制酸、早期进食、保护胃黏膜、应用生长抑素、必要时手术治疗，同时加强创面处理和抗感染治疗是防治烧伤后应激性溃疡的有效方法。     

自身免疫性风湿病患者皮肤溃疡的临床特点与治疗策略

目的研究自身免疫性风湿病（ARDs）合并皮肤溃疡患者的临床特点,治疗方法和效果。方法回顾性调查1998年至2008年中山大学附属第一医院ARDs合并皮肤溃疡住院患者的病例资料,分析ARDs患者皮肤溃疡的临床特点,各种治疗方法的效果。结果共有67例ARDs合并皮肤溃疡住院患者,126个溃疡,男女比例为1：3．1（16：51）,平均年龄（50．9±19．2）岁。70％患者溃疡发生时处于疾病活动期。绝大部分患者伴有多种器官系统受累和基础疾病,其中血象改变和低白蛋白血症常见。大部分溃疡在应用糖皮质激素和缓解病情抗风湿药物控制病情活动后保守治疗愈合或好转,或通过手术修复愈合。结论ARDs患者皮肤溃疡的发生及其临床表现与ARDs本身密切相关,治疗上应首先控制ARDs病情活动,再结合全身和局部情况决定手术或非手术治疗,并辅以综合治疗。     

碱性成纤维细胞生长因子与瘢痕成纤维细胞Ⅰ、Ⅲ型胶原蛋白的代谢

背景:研究证实碱性成纤维细胞生长因子有促进创面愈合的作用,然而其在促进创面愈合的同时是否会引起成纤维细胞的增殖而导致瘢痕增生已受到学者的广泛关注.目的:探讨碱性成纤维细胞生长因子对瘢痕成纤维细胞Ⅰ、Ⅲ型胶原蛋白合成和降解的调控作用.方法:增生性瘢痕组织取自中山大学附属第一医院烧伤科行瘢痕整复术的患者,组织块法培养瘢痕成纤维细胞.取第2代细胞,采用氯胺T法、RT-PCR和Western blot法检测不同浓度(0～500μg/L)碱性成纤维细胞生长因子对瘢痕来源的成纤维细胞Ⅰ、Ⅲ型胶原蛋白及细胞基质金属蛋白酶1合成和分泌的影响.结果与结论:碱性成纤维细胞生长因子对瘢痕成纤维细胞羟脯氨酸及Ⅰ、Ⅲ型胶原蛋白mRNA的表达均无促进作用.低质量浓度碱性成纤维细胞生长因子对细胞基质金属蛋白酶1的表达无明显影响,但随着质量浓度的升高表现为增高趋势,以50,100,500μg/L组增高最显著(P<0.05或P<0.01).同时,细胞基质金属蛋白酶1的表达在细胞与上清中变化一致.说明高质量浓度碱性成纤维细胞生长因子可以通过增加细胞基质金属蛋白酶1的合成来促进胶原蛋白降解,从而避免细胞外基质的过度沉积.     

荷负电气溶胶治疗对大鼠烫伤创面白细胞介素-8、10表达的影响及意义

Objective To discuss the influence of aerosol bioelectricity on the expression of interleukin (IL) -8 and IL-10 in wound healing of burned rats. Methods The deep Ⅱ degree scalding models were established in Sprague Dawley (SD) rats. Rats were randomly divided into experimental group (n1 =20) and control group (n2 =20). The rats in experimental group were treated with aerosol bioelectricity.Samples were collected at the first to eleventh day post-scalding. Immunohistochemistry and image analysis methods were conducted to examine the expression of IL-8 and IL-10 in both experimental and control groups. Results The average wound healing time in experimental group was 7. 00 ± 1. 15 days, and that in control group was 9. 00 ± 1. 34 days. IL-8 and IL-10 were observed mainly in polylmorphonuclear and mononuclear cells in both experimental and control groups on the 1 st day. On the third day, fibroblasts abounded, IL-8 expression was increased evidently and reached a peak. The peak value (6. 73 ± 1. 36) in experimental group was lower significantly than that in control group ( 2. 85 ± 0. 72, P ＜ 0. 01). From the 5th to 11th day, IL-8 expression was declined rapidly. IL-10 was expressed in keratode cells and had the peak value in experimental group (1. 24 ±0. 15) and control group (5. 69 ± 1. 32) on the 3rd day. IL-10 expression was declined gradually from the 5th to 11th days. The expression level of IL-10 in experimental group was significantly higher than in control group from the 3rd day to 11th days post-scalding (P＜0. 01). On the 3rd day, both IL-8 and IL-10 in experimental and control groups were expressed abundantly , and there was negative relationship between them (r = - 0. 862, P ＜ 0. 01). Conclusion Aerosol bioelectricity can indicate active cells proliferation through down-regulating the expression of IL-8 and up-regulating the expression of IL-10, accelerating burned wound healing.     

锁骨骨折钢板内固定38例临床分析

目的:探讨锁骨骨折钢板内固定的治疗方法。方法:选择38例锁骨骨折患者,均采取切开复位钢板内固定治疗方法,患者术后8¹2周复查X线片,根据线片显示查看骨折复位情况及愈合情况。结果:38例患者均获得有效随访,随访时间6月,随访过程中发现38例患者骨折愈合主要时间段在术后612周复查X线片,根据线片显示查看骨折复位情况及愈合情况。结果:38例患者均获得有效随访,随访时间6月,随访过程中发现38例患者骨折愈合主要时间段在术后6¹0周,平均愈合时间为8周左右,所有患者均未出现切口感染,功能恢复障碍等并发症情况。结论:锁骨骨折患者行切开复位内固定治疗有肯定性治疗效果,值得在临床应用中进行大力推广。