简介：Aim:TocomparetherecoveryrateofmorphologicallynormalandchromatincondensedspermatozoafromnativesemensamplesusingtheSpermPrepTMfiltrationcolumnsandPercollgradientcentrifugationandtodeterminetheinfluenceofthetwoprocessingtechniquesonfertilizationandpregnancyratesinanIVF-ETprogram.Methods:Sixteensemensamplesobtainedfrompatient'shusbandwereincludedinthisstudy.Eachwasdividedintotwoaliquots.ThefirstaliquotwasprocessedwithSpermPrepTMfiltrationcolumnsandthesecond,Percollgradientcentrifugation.Smearsweremadebeforeandaftersemenprocessingwithbothmethodsfortheevaluationofchromatincondensation(chromomycineCMA3)aswellasmorphology(strictcriteria)ofspermatozoa.Onehundredandseventyoocyteswereretrievedfromthepatientsandtheoocytesfromeachpatientweresubdividedintotwosets:onesetwasinseminatedusingspermatozoaprocessedwithSpermPrepTMandtheotherinseminatedaftersemenprocessingwithPercollgradientcentrifugation.Resuits:ThePercollmethodyieldedasignificantlyhigherpercentageofchromatincondensed(90.8±6.5%vs82.3±8.8%,P=0.017)andmorphologicallynormalspermatozoa(12.9±7.4%vs6.9±4.8%,P=0.001)incomparisontoSpermPrepTM.Whereas,spermcountrecoveryratewassignificantlyhigheraftertheuseofSpermPrepTMthanafterthePercollgradientcentrifugation.Thefertilizationratewassimilarbetweenthetwomethods.Conclusion:SemenprocessingwithPercollshouldberecommendedforintracytoplasmicsperminjectionasthenaturalselectionisbypassedandtheSpermPrepTMtechniquecouldberecommendedfor1VFandIUIprogramsasthespermconcentrationplaysamoresignificantroleintheseprocedures.

简介：从不成熟的动物的睾丸织物的碎片种并且发展精子发生什么时候grafted到immunodeficient老鼠的下的区域上。当声言不赞成时，一样的结果被获得啮齿类动物的不成熟的睾丸被注入裸体老鼠的subcutis。那些房间重新组成生精的小管并且便于精子发生。我们比较了这二个方法，织物grafting和房间注射方法，以在immunodeficient老鼠的三紧张的背的精子发生的效率，用象施主材料的新生的猪的阴囊的纸巾和房间。裸体、严重联合immunodeficient(SCID)和NOD/Shi-SCID，IL-2Rcnull(木钉)老鼠被用作接受者。在在外科以后的10个月，transplants组织学地被检验。grafting和房间注射方法在接受者老鼠的背上导致了猪的精子发生；在transplants在场的spermatids的百分比分别地是67%和22%。用grafting方法，老鼠的所有三紧张支持了精子发生的一样的程度。至于房间注射方法，尽管SCID鼠标是为支持宪法和精子发生的最好的主机，从另外的紧张的任何差别不是重要的。当木钉老鼠没好些显示出结果，免疫不全的严厉似乎为支持xeno宫外的精子发生无关。我们的结果证实管状的宪法对猪的阴囊的房间适用。象grafting方法一样的这个方法将为在动物的不同类型学习精子发生是有用的。