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Objective:Thisexperimentwasperformedto investigatethecalcificationof thecryopreservedaorticand pulmonaryhomograftsquantitivelyafterimplantation.Methods:Inoperationtheheterotopicimplantationof homo-graftconduitsintotheabdominalaortawasadopted.Thecalcificationof thehomograftconduitswasdeterminedby SX microelectronicprobeanalysis8wk afterimplantation.Results:Beforeimplantationthecalciumcontentof aor-tichomografts[(0.24±0.05)μg/mg]was significantlyhigherthanthatof pulmonaryhomograft[(0.13±0.02)μg/mg,P<0.01].Afterimplantationthecalciumcontentof arotichomografts[(0.53±0.09)μg/mg]was significantlyhigher thanthatbeforeimplantation[(0.24±0.05)μg/mg], withan increaseby(123.4±53.0)%(P<0.01),andso was thatof pulmonaryhomograftsfrom [(0.13±0.02)to(0.21±0.30)μg/mg],withan increaseby(63.8±35.8)%(P<0.01).And thecalciumcontentof aortichomograft[(0.53±0.09)μg/mg]wasstillsignificantlyhigherthanthatof pulmonaryhomo-graft[(0.21±0.03)μg/mg,P<0.01].Conclusion:In homograftconduitimplantationtheaortichomograftsaremore easilycalcifiedthanpulmonaryhomografts.TheMicroelectronicprobetechniquehasa greatsignificanceinelement componentanalysisof biologicalpreparation.
Objective: Thisexperimentwasperformedto investigatethecalcificationof thecryopreservedaorticand pulmonaryhomograftsquantitivelyafterimplantation.Methods: Inoperationtheheterotopicimplantationof homo-graftconduitsintotheabdominalaortawasadopted.Thecalcificationof thehomograftconduitswasdeterminedby SX microelectronicprobeanalysis8wk afterimplantation.Results: Beforeimplantationthecalciumcontentof aor-tichomografts [(0.24 ± 0.05) μg / mg] was significantlyhigherthanthatof pulmonaryhomograft [(0.13 ± 0.02) μg / mg, P <0.01]. Afterimplantation thecalcium content of arotichomografts [(0.53±0.09) μg/mg] was significantly higher than that beforeimplantation [(0.24±0.05) μg/mg], withan increaseby (123.4±53.0)% (P<0.01), andso was that of pulmonaryhomograftsfrom [( 0.13±0.02) to(0.21±0.30)μg/mg],withan increaseby(63.8±35.8)%(P<0.01).And thecalciumcontentof aortichomograft[(0.53±0.09)μg/mg]wasstillsignificantlyhigherthanthatofharmharmhomo-graft[(0.21± 0.03) μg/mg, P<0.01]. Conclusion: In homograftconduitimplantationt Heaortichomograftsaremore easily calcifiedthanpulmonaryhomografts.TheMicroelectronicprobetechniquehasa greatsignificanceinelement componentanalysisof biologicalpreparation.