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《醫(yī)學(xué)畢業(yè)論文負(fù)壓對糖尿病足犬皮膚cgrp免疫反應(yīng)性神經(jīng)纖維的影響》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在工程資料-天天文庫。
1、XX大學(xué)畢業(yè)論文負(fù)壓對糖尿病足犬皮膚CGRP免疫反應(yīng)性神經(jīng)纖維的影響2014年6月25日作者:李曉軍,王倩,易軍,凌瑞,王嶺,寧莫凡【摘要】目的:觀測正常犬及糖尿病足治療前后皮膚的降鈣素基因相關(guān)肽(CGRP)能感覺神經(jīng)纖維數(shù)量的變化.方法:犬15只.隨機分治療組5只、非治療組5只和正常對照組5只,治療組和非治療組均將動物制作左后肢糖尿病足模型,治療組在模型制作后14d,開始行患肢負(fù)壓治療10d(15min/次);非治療組不做負(fù)壓治療.三組均行患肢足趾皮膚免疫組化染色,檢測CGRP免疫反應(yīng)陽性纖維.結(jié)果:非治療組皮膚中每400倍視野中CGRP免疫反應(yīng)陽性神經(jīng)纖維(53.2±5.6)較正常對
2、照組(1L7±2.3)ym/mm2增多(LSDt=16.94,P0.01),治療組(32.5±2.9)ym/mm2較非治療組減少(LSDt=8.47,P0.01),但仍較正常對照組增多(LSDt=8.47,P0.01).結(jié)論:糖尿病足發(fā)病后,遠(yuǎn)端肢體皮膚屮的CGRP免疫反應(yīng)陽性神經(jīng)纖維數(shù)量明顯增多,可能是機體的一種自身保護(hù)機制.肢體負(fù)壓療法可促進(jìn)感覺神經(jīng)纖維中CGRP釋放,擴張血管,可用于糖尿病足的治療.【關(guān)鍵詞】降鈣素基因相關(guān)肽;糖尿病足;肢體負(fù)壓[Abstract]AIM:Toinvestigatethechangesofcalcitoningenerelatedpeptide(CG
3、RP)innervefibersofskininnormaldogsandoneswithdiabeticfootbeforeandaftertreatment.METHODS:Fifteendogswererandomlydividedintotreatment(n=5),nontreatment(n=5)andnormalcontrol(n=5)groups.Thediabeticfootmodelwasmadeatlefthindlimbinnontreatmentandtreatmentgroups.Thetreatmentgroupwastreatedbynegativepre
4、ssureonaffectedlimbsfor10d(15min/d)fromthe14thdayafterthemodelsweremade.However,thenontreatmentgroupwasnottreated.AlltheanimalsweredetectedforthechangeofCGRPimmunoreactivenervefibersintheskinoflefthindlimbtoesbyimmunohistochemistry.RESULTS:Comparedwiththenormalcontrolgroup(11.7±2.3)theCGRPimmunor
5、eactivenervefibersintheskinofnontreatmentgroup(53.2±5.6)
6、im/mm2wereincreasedobviously(LSDt=16.94,P0.01).Meanwhile,theCGRPimmunoreactivenervefibersintheskinoftreatmentgroup(32.5±2.9)
7、im/mm2weredecreasedobviously(LSDt=8.47,P0.01)comparedwiththenontreatmentgroup,butwerestillmorethanthoseinthenormalc
8、ontrolgroup(LSDt=8.47,P0.01).CONCLUSION:ThenumberofCGRPimmunoreactivenervefiberssignificantlyincreasesinnervefibersofskinoflimbindiabeticfoot.Weconsiderthatasaselfprotectmechanisminbody.NegativepressurecanstimulatethereleasingofCGRPinthesensorynervefibersandexpandthevessels,soitcanbeusedforthetre
9、atmentofdiabeticfoot.[Keywords]calcitoningenerelatedpeptide;diabeticfoot;limbnegativepressure0引言糖尿病足(diabeticfoot)又稱糖尿病肢端壞疽,是糖尿病慢性致殘性并發(fā)癥.主要病因為下肢中小血管及微循環(huán)障礙,周圍神經(jīng)病變并發(fā)感染所致.其臨床癥狀多較重,且手術(shù)及藥物治療效果不佳.肢體負(fù)壓(limbnegativepressure,LN