Objective To evaluate the long-term therapeutic effect and histologic result of ADM combined with autologous thin split-thickness skin graft.Methods 23 patients were treated with acellalar dermal matrix(ADM) combined ...Objective To evaluate the long-term therapeutic effect and histologic result of ADM combined with autologous thin split-thickness skin graft.Methods 23 patients were treated with acellalar dermal matrix(ADM) combined with autoiogous展开更多
We described a 27-year-old case of avulsion and traumatic degloving of penile with extensive penis skin necrosis. Under general anesthesia, donor skin was partially resected from lower limbs according to defect area o...We described a 27-year-old case of avulsion and traumatic degloving of penile with extensive penis skin necrosis. Under general anesthesia, donor skin was partially resected from lower limbs according to defect area of penile skin. Then shear the shape of graft was sheared, sutured to hostage skin defect and enswathed with tension. The postoperative appearance and function of the penis were satisfactory. It is suggest the homologous free skin flap from lower limbs is suitable for penile skin repair and beneficial to patient resulting in satisfactory erection and shape.展开更多
目的:通过模拟皮肤损伤修复过程中局部微环境的变化,了解脂肪来源干细胞(adi pose t i ssue deri ved st em,cAeSCl)l的表型改变对细胞功能的影响。方法:由手术废弃皮肤和脂肪组织获取实验所需细胞,并培养扩增。对不同传代数的ASC细胞...目的:通过模拟皮肤损伤修复过程中局部微环境的变化,了解脂肪来源干细胞(adi pose t i ssue deri ved st em,cAeSCl)l的表型改变对细胞功能的影响。方法:由手术废弃皮肤和脂肪组织获取实验所需细胞,并培养扩增。对不同传代数的ASC细胞进行脂肪细胞诱导分化,了解细胞的可诱导分化性能;构建ASC细胞-胶原凝胶,贴壁或悬浮培养,对ASC凝胶进行α-SMA免疫组化染色;培养基中添加TGF-β1,观察TGF-β1对ASC细胞表型和可诱导分化能力的影响;收集培养上清液,El i sa法测定比较成纤维细胞和ASC细胞的细胞生长因子分泌水平,以及经TGF-β1作用,ASC细胞表型发生变化后细胞生长因子分泌水平的变化。结果:ASC细胞可以多次传代,仍保持较好的可诱导分化特性;在培养过程中,张力和TGF-β1可以使ASC获得α-SMA阳性表型;ASC细胞相比成纤维细胞,有较高的VEGF和KGF分泌水平,但TGF-β1分泌水平极低(未测到),获得α-SMA阳性表型的ASC细胞的VEGF分泌水平继续大幅上升,而且也分泌了较高水平的TGF-β1。结论:ASC细胞在创伤局部环境的刺激下或经体外人工诱导,可以产生更有利于创伤愈合的表型。对ASC细胞特性的了解和调控,将有利于ASC细胞在组织修复再生方面的应用。展开更多
Evaluating patients with chronic venous leg ulcers(CVLUs)is essential to find the underlying etiology.The basic tenets in managing CVLUs are to remove the etiological causes,to address systemic and metabolic condition...Evaluating patients with chronic venous leg ulcers(CVLUs)is essential to find the underlying etiology.The basic tenets in managing CVLUs are to remove the etiological causes,to address systemic and metabolic conditions,to examine the ulcers and artery pulses,and to control wound infection with debridement and eliminating excessive pressure on the wound.The first-line treatments of CVLUs remain wound care,debridement,bed rest with leg elevation,and compression.Evidence to support the efficacy of silver-based dressings in healing CVLUs is unavailable.Hydrogen peroxide is harmful to the growth of granulation tissue in the wound.Surgery options include a high ligation with or without stripping or ablation of the GSVs depending on venous reflux or insufficiency.Yet,not all CVLUs are candidates for surgical treatment because of comorbidities.When standard care of wound for 4 wk failed to heal CVLUs effectively,use of advanced wound care should be considered based on the available evidence.Negative pressure wound therapy facilitates granulation tissue development,thereby helping closure of CVLUs.Autologous split-thickness skin grafting is still the gold standard approach to close huge CVLUs.Hair punch graft appears to have a better result than traditional hairless punch graft for CVLUs.Application of adipose tissue or placenta-derived mesenchymal stem cells is a promising therapy for wound healing.Autologous platelet-rich plasma provides an alternative strategy for surgery for safe and natural healing of the ulcer.The confirmative efficacy of current advanced ulcer therapies needs more robust evidence.展开更多
Complications from autologous free flap reconstruction of the breast can present with both common surgical complications and unique complications at the chest recipient site.This review covers complications at the che...Complications from autologous free flap reconstruction of the breast can present with both common surgical complications and unique complications at the chest recipient site.This review covers complications at the chest recipient site,including chest wall deformity,chronic pain,mastectomy skin flap necrosis,infection,pyoderma gangrenosum,bleeding complications,pneumothorax,chyle leak,and positive internal mammary lymph node metastasis.展开更多
文摘Objective To evaluate the long-term therapeutic effect and histologic result of ADM combined with autologous thin split-thickness skin graft.Methods 23 patients were treated with acellalar dermal matrix(ADM) combined with autoiogous
文摘We described a 27-year-old case of avulsion and traumatic degloving of penile with extensive penis skin necrosis. Under general anesthesia, donor skin was partially resected from lower limbs according to defect area of penile skin. Then shear the shape of graft was sheared, sutured to hostage skin defect and enswathed with tension. The postoperative appearance and function of the penis were satisfactory. It is suggest the homologous free skin flap from lower limbs is suitable for penile skin repair and beneficial to patient resulting in satisfactory erection and shape.
文摘目的:通过模拟皮肤损伤修复过程中局部微环境的变化,了解脂肪来源干细胞(adi pose t i ssue deri ved st em,cAeSCl)l的表型改变对细胞功能的影响。方法:由手术废弃皮肤和脂肪组织获取实验所需细胞,并培养扩增。对不同传代数的ASC细胞进行脂肪细胞诱导分化,了解细胞的可诱导分化性能;构建ASC细胞-胶原凝胶,贴壁或悬浮培养,对ASC凝胶进行α-SMA免疫组化染色;培养基中添加TGF-β1,观察TGF-β1对ASC细胞表型和可诱导分化能力的影响;收集培养上清液,El i sa法测定比较成纤维细胞和ASC细胞的细胞生长因子分泌水平,以及经TGF-β1作用,ASC细胞表型发生变化后细胞生长因子分泌水平的变化。结果:ASC细胞可以多次传代,仍保持较好的可诱导分化特性;在培养过程中,张力和TGF-β1可以使ASC获得α-SMA阳性表型;ASC细胞相比成纤维细胞,有较高的VEGF和KGF分泌水平,但TGF-β1分泌水平极低(未测到),获得α-SMA阳性表型的ASC细胞的VEGF分泌水平继续大幅上升,而且也分泌了较高水平的TGF-β1。结论:ASC细胞在创伤局部环境的刺激下或经体外人工诱导,可以产生更有利于创伤愈合的表型。对ASC细胞特性的了解和调控,将有利于ASC细胞在组织修复再生方面的应用。
文摘Evaluating patients with chronic venous leg ulcers(CVLUs)is essential to find the underlying etiology.The basic tenets in managing CVLUs are to remove the etiological causes,to address systemic and metabolic conditions,to examine the ulcers and artery pulses,and to control wound infection with debridement and eliminating excessive pressure on the wound.The first-line treatments of CVLUs remain wound care,debridement,bed rest with leg elevation,and compression.Evidence to support the efficacy of silver-based dressings in healing CVLUs is unavailable.Hydrogen peroxide is harmful to the growth of granulation tissue in the wound.Surgery options include a high ligation with or without stripping or ablation of the GSVs depending on venous reflux or insufficiency.Yet,not all CVLUs are candidates for surgical treatment because of comorbidities.When standard care of wound for 4 wk failed to heal CVLUs effectively,use of advanced wound care should be considered based on the available evidence.Negative pressure wound therapy facilitates granulation tissue development,thereby helping closure of CVLUs.Autologous split-thickness skin grafting is still the gold standard approach to close huge CVLUs.Hair punch graft appears to have a better result than traditional hairless punch graft for CVLUs.Application of adipose tissue or placenta-derived mesenchymal stem cells is a promising therapy for wound healing.Autologous platelet-rich plasma provides an alternative strategy for surgery for safe and natural healing of the ulcer.The confirmative efficacy of current advanced ulcer therapies needs more robust evidence.
文摘Complications from autologous free flap reconstruction of the breast can present with both common surgical complications and unique complications at the chest recipient site.This review covers complications at the chest recipient site,including chest wall deformity,chronic pain,mastectomy skin flap necrosis,infection,pyoderma gangrenosum,bleeding complications,pneumothorax,chyle leak,and positive internal mammary lymph node metastasis.
