中华实验外科杂志
中華實驗外科雜誌
중화실험외과잡지
CHINESE JOURNAL OF EXPERIMENTAL SURGERY
2014年
7期
1443-1444
,共2页
汤梁峰%钟海军%沈剑%陈宏%毕允力
湯樑峰%鐘海軍%瀋劍%陳宏%畢允力
탕량봉%종해군%침검%진굉%필윤력
脊髓脊膜膨出%胎内修补
脊髓脊膜膨齣%胎內脩補
척수척막팽출%태내수보
Myelomeningocele%Fetal repair
目的 利用维甲酸灌胃孕鼠诱导的大鼠子鼠脊髓脊膜膨出动物模型,建立一种动物实验方法,观察壳聚糖明胶薄膜在修补子鼠脊髓脊膜膨出的效果.方法 利用维甲酸灌胃孕SD大鼠获得脊髓脊膜膨出的子鼠动物模型,在孕中期(孕18d)利用经腹经子宫开放手术,以壳聚糖明胶薄膜作为组织工程材料修补脊髓脊膜膨出皮肤缺损.在孕21 d取胎,观察手术成功率,并以未经手术修补的子鼠为对照,观察组织病理学改变.结果 通过建立动物模型,用44只可利用的子鼠顺利进行了28例修补,修补后存活13只,其中获得了10只修补满意的子鼠.观察到了修补手术后局部的组织改变.以未经修补的子鼠为对照,通过测定免疫组织化学染色切片中的吸光度值,发现神经微管蛋白-β-Ⅲ在子鼠膀胱表达显著高于对照组,且和普通子鼠比较差异无统计学意义(P>0.05).结论 壳聚糖-明胶薄膜作为组织工程材料可应用在该手术模型中,对脊髓脊膜膨出子鼠膀胱神经发育有改善作用.
目的 利用維甲痠灌胃孕鼠誘導的大鼠子鼠脊髓脊膜膨齣動物模型,建立一種動物實驗方法,觀察殼聚糖明膠薄膜在脩補子鼠脊髓脊膜膨齣的效果.方法 利用維甲痠灌胃孕SD大鼠穫得脊髓脊膜膨齣的子鼠動物模型,在孕中期(孕18d)利用經腹經子宮開放手術,以殼聚糖明膠薄膜作為組織工程材料脩補脊髓脊膜膨齣皮膚缺損.在孕21 d取胎,觀察手術成功率,併以未經手術脩補的子鼠為對照,觀察組織病理學改變.結果 通過建立動物模型,用44隻可利用的子鼠順利進行瞭28例脩補,脩補後存活13隻,其中穫得瞭10隻脩補滿意的子鼠.觀察到瞭脩補手術後跼部的組織改變.以未經脩補的子鼠為對照,通過測定免疫組織化學染色切片中的吸光度值,髮現神經微管蛋白-β-Ⅲ在子鼠膀胱錶達顯著高于對照組,且和普通子鼠比較差異無統計學意義(P>0.05).結論 殼聚糖-明膠薄膜作為組織工程材料可應用在該手術模型中,對脊髓脊膜膨齣子鼠膀胱神經髮育有改善作用.
목적 이용유갑산관위잉서유도적대서자서척수척막팽출동물모형,건립일충동물실험방법,관찰각취당명효박막재수보자서척수척막팽출적효과.방법 이용유갑산관위잉SD대서획득척수척막팽출적자서동물모형,재잉중기(잉18d)이용경복경자궁개방수술,이각취당명효박막작위조직공정재료수보척수척막팽출피부결손.재잉21 d취태,관찰수술성공솔,병이미경수술수보적자서위대조,관찰조직병이학개변.결과 통과건립동물모형,용44지가이용적자서순리진행료28례수보,수보후존활13지,기중획득료10지수보만의적자서.관찰도료수보수술후국부적조직개변.이미경수보적자서위대조,통과측정면역조직화학염색절편중적흡광도치,발현신경미관단백-β-Ⅲ재자서방광표체현저고우대조조,차화보통자서비교차이무통계학의의(P>0.05).결론 각취당-명효박막작위조직공정재료가응용재해수술모형중,대척수척막팽출자서방광신경발육유개선작용.
Objective To establish an animal experimental method for investigating the effect of fetal myelomeningocele (MMC) repair with chitosan gelatin membrane,and then observe the bladder protective effect of fetal surgery.Methods Fetal myelomeningocele rats were obtained by feeding pregnant rats with retinoic acid.Open abdominal fetal surgery was performed,and repair of MMC using chitosan gelatin membrane as tissue engineering materials.Fetal rats after repair were harvested bofore dilivery.By observing the success rate of surgery and pathological changes,data were analyzed compare to MMC fetus in groups.Results 44 fetuses underwent repairment,and the use of chitosan gelatin membrane patch in fetal surgery was successful in 10 fetuses.Local tissue changes after the repair of MMC.According to the optical density value in immunochemistry staining,the expression of nerve tubulin-β-Ⅲ in the fetal bladder was significantly higher in operation group as compare with MMC control group,and it had no difference to normal control.Condusion Our preliminary study confirmed that chitosan gelatin membrane as tissue engineering materials in the MMC fetal surgery is feasible,and it showed the protection effect to fetal spine and bladder.