两例LRP5基因的致病性同源变异引起的骨质疏松症假胶质瘤综合征患者的临床和放射学特征
- 作者: Merkuryeva E.S.1, Markova T.V.1, Kenis V.M.2, Kadyshev V.V.1, Nagornova T.S.1, Noskova E.V.3, Dadali E.L.1
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隶属关系:
- Research Centre for Medical Genetics
- H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
- Chelyabinsk Regional Children’s Clinical Hospital
- 期: 卷 11, 编号 4 (2023)
- 页面: 547-556
- 栏目: Clinical cases
- URL: https://bakhtiniada.ru/turner/article/view/251913
- DOI: https://doi.org/10.17816/PTORS607380
- ID: 251913
如何引用文章
详细
论证。骨质疏松症-假性神经胶质瘤综合征(OMIM #259770)是一种极其罕见的常染色体隐性遗传疾病,其特征是先天性或婴儿期失明、严重形式的骨质疏松和自发性骨骨折。该综合征是由LRP5基因的致病核苷酸序列变异引起的,LRP5基因编码参与Wnt/β-连环蛋白信号传导的蛋白质。迄今为止,与“骨质疏松症-假性胶质瘤”综合征相关的LRP5基因中已有77个致病变体被报道,这些变体大多位于蛋白质的第二和第三β-螺旋桨结构域,对Wnt配体具有高亲和力。
临床观察。我们观察了两个具有“骨质疏松症-假性胶质瘤”综合征临床表现的同胞,该综合征是由 LRP5基因的致病性同源错义变异c.1481G>A (p.Arg494Gln)引起的。患者的表型特征是失明、骨矿物质密度明显降低、骨折、长管骨和脊柱畸形以及身高偏低。
讨论。由于“骨质疏松症-假性胶质瘤”综合征的罕见性,以及不同疾病学形式的骨骼发育不良的临床表现的相似性,该组疾病的明显遗传异质性,导致正确诊断的延迟和特异性治疗的不及时。
结论。本文首次描述了两个患有“骨质疏松症-假性胶质瘤”综合征的兄弟姐妹的临床、放射学和遗传学特征。这种疾病的罕见性决定了有必要描述这种综合征的临床和遗传特征,研究其表型表现的形成动态和分子遗传诊断方法。
关键词
作者简介
Elena S. Merkuryeva
Research Centre for Medical Genetics
Email: elena.merkureva@gmail.com
ORCID iD: 0000-0001-6902-253X
MD, PhD student, geneticist
俄罗斯联邦, MoscowTatiana V. Markova
Research Centre for Medical Genetics
Email: markova@med-gen.ru
ORCID iD: 0000-0002-2672-6294
SPIN 代码: 4707-9184
MD, PhD, Cand. Sci. (Med.)
俄罗斯联邦, MoscowVladimir M. Kenis
H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
编辑信件的主要联系方式.
Email: kenis@mail.ru
ORCID iD: 0000-0002-7651-8485
SPIN 代码: 5597-8832
MD, PhD, Dr. Sci. (Med.), Professor
俄罗斯联邦, Saint PetersburgVitaly V. Kadyshev
Research Centre for Medical Genetics
Email: vvh.kad@gmail.com
ORCID iD: 0000-0001-7765-3307
SPIN 代码: 4015-1309
MD, PhD, Cand. Sci. (Med.), Assistant Professor
俄罗斯联邦, MoscowTatiana S. Nagornova
Research Centre for Medical Genetics
Email: nagornova@med-gen.ru
ORCID iD: 0000-0003-4527-4518
SPIN 代码: 6032-2080
MD, laboratory geneticist
俄罗斯联邦, MoscowElena V. Noskova
Chelyabinsk Regional Children’s Clinical Hospital
Email: noskovaev89@gmail.com
MD, geneticist
俄罗斯联邦, ChelyabinskElena L. Dadali
Research Centre for Medical Genetics
Email: genclinic@yandex.ru
ORCID iD: 0000-0001-5602-2805
SPIN 代码: 3747-7880
MD, PhD, Dr. Sci. (Med.), Professor
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