Consistent chromosome abnormalities identify novel polymicrogyria loci in 1p36.3, 2p16.1-p23.1, 4q21.21-q22.1, 6q26-q27, and 21q2.

Consistent chromosome abnormalities identify novel polymicrogyria loci in 1p36.3, 2p16.1-p23.1, 4q21.21-q22.1, 6q26-q27, and 21q2.
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DOI:
10.1002/ajmg.a.32293
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发表时间:
2008-07-01
影响因子:
2
通讯作者:
Shaffer, Lisa G.
Shaffer, Lisa G.
中科院分区:
生物学3区
文献类型:
--
作者:
Dobyns, William B.;Mirzaa, Ghayda;Christian, Susan L.;Petras, Kristin;Roseberry, Jessica;Clark, Gary D.;Curry, Cynthia J. R.;McDonald-McGinn, Donna;Medne, Livija;Zackai, Elaine;Parsons, Julie;Zand, Dina J.;Hisama, Fuki M.;Walsh, Christopher A.;Leventer, Richard J.;Martin, Christa L.;Gajecka, Marzena;Shaffer, Lisa G.

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Polymicrogyria is a malformation of cortical development characterized by loss of the normal gyral pattern, which is replaced by many small and infolded gyri separated by shallow, partly fused sulci, and loss of middle cortical layers. The pathogenesis is unknown, yet emerging data supports the existence of several loci in the human genome. We report on the clinical and brain imaging features, and results of cytogenetic and molecular genetic studies in 29 patients with polymicrogyria associated with structural chromosome rearrangements. Our data map new polymicrogyria loci in chromosomes 1p36.3, 2p16.1-p23, 4q21.21-q22.1, 6q26-q27, and 21q21.3-q22.1, and possible loci in 1q44 and 18p as well. Most and possibly all of these loci demonstrate incomplete penetrance and variable expressivity. We anticipate that these data will serve as the basis for ongoing efforts to identify the causal genes located in these regions.
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