Complex rearranged small supernumerary marker chromosomes (sSMC), three new cases; evidence for an underestimated entity?

Complex rearranged small supernumerary marker chromosomes (sSMC), three new cases; evidence for an underestimated entity?
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复杂的重新排列的小型超级标记染色体(SSMC),三个新病例;被低估的实体的证据?

DOI:
10.1186/1755-8166-1-6
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发表时间:
2008-04-15
影响因子:
1.3
通讯作者:
Liehr T
Liehr T
中科院分区:
生物学4区
文献类型:
--
作者:
Trifonov V;Fluri S;Binkert F;Nandini A;Anderson J;Rodriguez L;Gross M;Kosyakova N;Mkrtchyan H;Ewers E;Reich D;Weise A;Liehr T

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全球约有 2.6 × 106 个人类存在小型额外标记染色体 (sSMC)。 sSMC 是一组异质衍生染色体,涉及其临床后果以及染色体起源和形状。除了伊曼纽尔综合征中存在的 sSMC,即 der(22)t(11;22)(q23;q11) 之外,仅报道了少数所谓的复杂 sSMC。在这里,我们报告了三个独特复杂 sSMC 的新病例。一个是具有 dic(13 或 21;22) 的新发病例,两个是母源性病例:der(18)t(8;18) 和 der(13 或 21)t(13 或 21;18)。因此,总而言之,目前文献中已有 22 例独特的复杂 sSMC。然而,这种特殊类型的 sSMC 在 sSMC 携带者中可能未被充分诊断。对 sSMC 进行更全面的表征以及反向荧光原位杂交 (FISH) 或基于阵列的比较基因组杂交 (array-CGH) 等方法可能会发现它们在所有 sSMC 中的出现频率仅为约 0.9%。
Small supernumerary marker chromosomes (sSMC) are present ~2.6 × 106 human worldwide. sSMC are a heterogeneous group of derivative chromosomes concerning their clinical consequences as well as their chromosomal origin and shape. Besides the sSMC present in Emanuel syndrome, i.e. der(22)t(11;22)(q23;q11), only few so-called complex sSMC are reported. Here we report three new cases of unique complex sSMC. One was a de novo case with a dic(13 or 21;22) and two were maternally derived: a der(18)t(8;18) and a der(13 or 21)t(13 or 21;18). Thus, in summary, now 22 cases of unique complex sSMC are available in the literature. However, this special kind of sSMC might be under-diagnosed among sSMC-carriers. More comprehensive characterization of sSMC and approaches like reverse fluorescence in situ hybridization (FISH) or array based comparative genomic hybridization (array-CGH) might identify them to be more frequent than only ~0.9% among all sSMC.
DOI: 10.1002/ajmg.a.31633
发表时间: 2007-04-01
影响因子: 2
作者:
Mabboux, P.;Brisset, S.;Tachdjian, G.
通讯作者: Tachdjian, G.
DOI: 10.1159/000098181
发表时间: 2007-01-01
影响因子: 1.7
作者:
Backx, L.;Van Esch, H.;Vermeesch, J. R.
通讯作者: Vermeesch, J. R.
DOI: 10.1007/s00439-003-1016-3
发表时间: 2003-12-01
期刊: HUMAN GENETICS
影响因子: 5.3
作者:
Starke, H;Nietzel, A;Liehr, T
通讯作者: Liehr, T
DOI: 10.1002/pd.1970150705
发表时间: 1995-07-01
期刊: PRENATAL DIAGNOSIS
影响因子: 3
作者:
BRONDUMNIELSEN, K;MIKKELSEN, M
通讯作者: MIKKELSEN, M
DOI: 10.1007/s004390100459
发表时间: 2001-03-01
期刊: HUMAN GENETICS
影响因子: 5.3
作者:
Nietzel, A;Rocchi, M;Liehr, T
通讯作者: Liehr, T