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文檔簡介
Thetest-tubebabytechnology’s
briefintroductionanddiscussion
Name:PengxiangLiStudentNumber:81110814Class:LaboratoryAnimalTheconceptofivfThedevelopingcourseofivfSeveralcommonivfTheadvantagesanddisadvantagesofivfContent1.Theconcept
Test-tubebabytechnologyisalsoknownas
invitrofertilization-embryotransfer(IVF-ET)technology,meansusing
someartificialmethodstofertilizeeggsandspermsinvitro,orinalaboratoryculture,andcarryingoutearlyembryodevelopment,andthentransplantedtothewombtocultivate.Finnally,thepregnantwomengivebirthto
thebabys.In1947,ThemagazineNatureinUKreportedaexperimentofrecyclingrabbits’eggsandtransferingthemtootherrabbitstogivebirthtoyoungrabbitsby“borrowingtheabdomen”.In1959,MinjueZhang,aChinese-Americanbiologist,finishedthisexperimentagain,andachievedasuccess.OnJuly25,1978,theworld'sfirsttest-tubebabyLouisBrownwasborninBritain.2.ThedevelopingcourseofivfFromthelate1970stothelate1980s,manycountrieshadmadethefirstgenerationtest-tubebabyssuccessfully.1988.3.10China,girlThefirsttest-tubebaby
oftheChinesemainland
1981.12.28America,girl
1982.1.20Greek,girl1982.2.24French,girl1978.10.3India,girl1979.1.14UK,boy
1979.6.23Australia,girl
1980.6.6Australia,aboyandagirl,thefirsttwins
oftest-tube
baby
1981.10.19UK
,girl,
thefirstmulattotest-tubebaby1982.6.25UK,girl1982.9.22Israel,girl1982.9.27Swedish,girl
1983.5.20Singapore,boy,
thefirsttest-tubebabyof
southeastAsia1983.6.8Australiathefirsttriplets1984.1.16Australia'sfirstquadruplets
1985.4.16Taiwan,China,boyfirsttest-tubebabyUptonow,theglobaltest-tubebabyshavemorethan3billion.Conventionalinvitrofertilizationandembryotransfer
Gameteandembryocryopreservationtechnology
Thegeneticdiagnosisofembryosbeforeplanting
Thetechnologyofooplasmsubstitution
Drugstostimulatesuperovulation
AsinglesperminjectionofOocyteplasma
3.Severalcommonivf3.1Theconventionalinvitrofertilizationandembryotransfer.3.2Asinglesperm
injectionofOocyteplasma.3.3Thegeneticdiagnosisofembryosbeforeplanting.
Alsoknownasthefourthgenerationofivf.Humangeneticmaterialexistsinthechromosomesofsperms’andeggs’nucleus,andthecytoplasmaroundnucleus,playsanimportantpartinprovidingnutritionandsustaininglife.Thiskindoftesttubebabiesareforthosewomenwhohaveovipositfunction,butbecauseofpoorphysicalconditions,orolder,causingtheegg’squalityisnotsohigh,andtheenergyispoor.Specificmethodistoremovehernucleusofaneggcell,intoayoung,healthywomen’scytoplasmofaegg,forminganew,high-qualityegg,butitstillexpressesthegeneticcharacteristicsofthepreviouswoman.Thencombinethiseggandherhusband'sspermtogetherinvitrotocomebeingtoafertilizedegg,implantedbackintothefirstwoman'swomb,soshegivesbirthtoahealthychildrenthathasnorelationshipwith"thethirdpeople"providingthecytoplasm.3.4Thetechnologyofooplasmsubstitution4.
Theadvantagesofivf
Test-tubebabytechnology,akindofassistedreproductivetechnology,createsthemiracleoflife,itisofgreatimportancethat
bringstheGospeltoinfertilewomen,andmaintainstheharmony,happy
familiesandastablesociety.
IftheYchromosome
takingmicrodefectisinherited,itis
easytocausemiscarriage,stillbirth,andcongenital
anomaliesandsoon.
Ifawomanhasnoconditionsforbreeding,hasahistoryofmiscarriage.Evenifatest-tubebabysurgeryworks,alsocancausemiscarriage.Someinstitutionscann’tcontrollthespermsstrictly,thesourceofspermsisunknown.It’s
unabletoguaranteethequalityofthefetus.Highcostforeachoffspring:an
artificial
inseminationneeds2-30000yuan,thesuccessfulrateisabout20%.Thetest-tubebabysmadebyartificialfertilizationhavethethreetimeshigherriskofsufferingfromcerebralpalsy.thanbynaturalfertilizationwhenthey
wereborn.Itinterferences
femalephysiologystrictly.5.ThedisadvantagesofivfConclusion:Tosumup,test-tubebabytechnology,asakindof
high-techproduct
inmedicalalongwiththedevelopmentofscienceandtechnology,writesanewchapterforthehumanreproductivehistoryandcreatesthemiracleoflife.But,atthesametime,italsoappearssomerelatedprobl
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