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INTRoDUCTIoNPhenylketonuria(PKU)isanautosomalrecessivediseasecausedbythedeficiencyofaliver-specificen-zyme,phenylalaninehydroxylase(PAH).Itisoneofthemostcommoninbornerrorsofmetabolismwithaprevalenceof1in17OOOnewbornChinese(l).Recent-ly,theuseofalternativemolecularapproachesforstudy-ingPKUpatientsfromvariousethnicgroupsworldwidehasrevealedatleast14OdifferentpointmutationsinthehumanPAHgene(2,3),andmorethanl3mutationshavebeenreportedinChinesepopulations(4~9)'Tofurtherinvestigatethemol… 相似文献
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