Influence of Genetically modified Soya on the Birth-Weight and Survival of Rat Pups

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1、InfluenceofGeneticallymodifiedSoyaontheBirth-WeightandSurvivalofRatPupsAbstract1InvestigationoftheinfluenceofGMsoyaonthebirthrateandsurvivaloftheoffspring后代ofWistarrats2wereperformed.AgroupoffemaleratswerefedGMsoyaflourbeforemating交配andpregnancy.Thecontrolgroupoffemaleswerefedtraditi

2、onalsoyaandthethirdgroupoffemales,thepositive十足的，纯粹的controlgroup,receivedfeedwithoutanysoya.Theweightandthemortality死亡rateofthenewbornpupswereanalyzed.Thestudyshowedthattherewasaveryhighrateofpupmortality(55.6%)intheGMsoyagroupincomparisonwiththecontrolgroupandthepositivecontrolgroup

3、(9%and6.8%respectively各自，分别).Moreover,deathinthefirstgroupcontinuedduringlactation哺乳,andtheweightsofthesurvivorsarelowerthosefromtheothertwogroups.Itwasrevealedintheseexperiments,thatGMsoyacouldhaveanegativeinfluenceontheoffspringsofWistarrats.Introduction2Thetermgeneticallymodifiedo

4、rganism(GMO3s)referstoplants,microbesandanimalswithgenestransferredfromotherspeciesinordertoproducecertainnovelcharacteristics(forexampleresistancetopests害虫,orherbicides)andareproducedbyrecombinantDNAtechnology.Fourmainsourcesofthehazards危险ofGMOarediscussedbyscientistsworldwide:1)tho

5、seduetothenewgenes,andgeneproductsintroduced插入;2)unintendedeffectsinherent内在的tothetechnology;3)interactionsbetweenforeigngenesandhostgenes;and4)thosearisingfromthespreadoftheintroducedgenesbyordinarycross-pollination异花授粉aswellasbyhorizontalgenetransfer(WorldScientists’Statement2000).

6、3GMcropscontainmaterial,whichisnotpresentinthemundernaturalconditions,andtheyformapartofourdailydiet.TounderstandwhateffecttheycanhaveonusandonouranimalsitisvitallyimportanttostudytheinfluenceoftheseGMplantsindifferentorganismsforseveralgenerations.Atthepresent,thesestudiesarelacking

7、fromthescientificliterature.Also,severaldetrimentaleffectsofGMcropshadbeenshowedonthemetabolismofanimals.Thehazardofgeneticallymodifiedorganisms(GMO)wasshownforanimalsandtheenvironmentinmanyinvestigations(Traavik1995;HoandTappeser1997;Pusztai1999and2001;Kuznetcovetal.2004andothers).E

8、arlieritwass