相关实验视频

Updated: Jul 11, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model

Published on: August 8, 2022

患有CMT4J的患者的临床和遗传特征

Sadia Beloribi-Djefaflia^1,2, Raul Juntas Morales³, Farzad Fatehi^1,2

¹Reference Center for Neuromuscular Disorders and ALS, Timone University Hospital, Aix-Marseille University, 264 Rue Saint Pierre, 05 13385, Marseille, Cedex, France.

Journal of neurology

|November 11, 2023

概括

在FIG4基因的突变导致Charcot-Marie-Tooth 4J (CMT4J),呈现不同的症状. 这项研究详细介绍了8例CMT4J病例,揭示了疾病严重程度和发病率的变化,并突出了潜在的诊断挑战.

科学领域:

遗传学是一个遗传学.
神经学神经学
分子生物学分子生物学

背景情况:

FIG4基因的突变与神经退行性疾病有关,包括Charcot-Marie-Tooth 4J (CMT4J).
FIG4突变表现出广泛的临床表现,复杂的诊断和管理.
了解基因型-表型相关性对于有效的患者护理至关重要.

研究的目的:

调查8名患有FIG4基因p.Ile41Thr突变的患者的表型变异性.
探索与特定FIG4突变相关的Charcot-Marie-Tooth 4J (CMT4J) 的临床谱.
识别潜在的诊断挑战,并提高对CMT4J的理解.

主要方法:

对八名携带FIG4 p.Ile41Thr突变的CMT4J患者的病例序列分析.
基于疾病发病,严重程度和相关症状 (例如帕金森症) 的表型分类.
电生理学研究和遗传分析 (异合体和同合体状态).

主要成果:

八名具有FIG4 p.Ile41Thr突变的CMT4J患者表现出不同的表型,从纯CMT到帕金森症的CMT.
疾病发作从幼儿到成年有所不同,与严重程度相关.
导电阻塞等电生理学发现发生在四名患者身上,模仿获得的神经病变,IVIg治疗无效.
异合体患者表现出对比的表型,一个同合体患者患有严重的早期发病形式.

结论:

在FIG4中的p.Ile41Thr突变导致具有可变表达性的异质CMT4J表型.
在患有FIG4突变的患者中,导电阻塞和不对称的神经导电研究结果可能导致误诊.
需要进一步的研究,以充分阐明CMT4J中复杂的基因型-表型关系.

关键词:

CMT4JJ 在线播放案例报告案例报告查尔科特 (Charcot) 是一个小镇.导电块是指导电流的组成部分.图4 图4 是一个图形.玛丽·玛丽·玛丽·玛丽是什么意思帕金森症帕金森症牙的牙是一个牙.

更多相关视频

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Published on: August 15, 2019

In Vivo Electrophysiological Measurement of Compound Muscle Action Potential from the Forelimbs in Mouse Models of Motor Neuron Degeneration

In Vivo Electrophysiological Measurement of Compound Muscle Action Potential from the Forelimbs in Mouse Models of Motor Neuron Degeneration

Published on: June 15, 2018

相关概念视频

Pleiotropy

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...

Cystic Fibrosis: Pathogenesis

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...

Karyotyping

Karyotyping

Incomplete Dominance

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.