相关实验视频
Updated: Jul 20, 2025

07:51
Pull-down of Calmodulin-binding Proteins
Published on: January 23, 2012
25.4K
卡尔莫杜林突变的临床表现:国际卡尔莫杜林病变注册表
Lia Crotti1,2, Carla Spazzolini1, Mette Nyegaard3
1Istituto Auxologico Italiano IRCCS, Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Via Pier Lombardo 22, 20135 Milan, Italy.
European heart journal
|August 2, 2023
概括
由于CALM基因突变引起的卡尔莫杜林症会导致年轻人的严重心律失常. 国际卡尔莫杜林病学注册表显示心脏事件严重程度有所下降,但突出显示了类表现和日益增加的家族病例.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 心脏病学 心脏病学
- 神经学 神经学
背景情况:
- 由于CALM1-3基因的突变导致的卡尔莫杜林病症会导致危及生命的心律失常,特别是在儿童群体中.
- 国际卡尔莫杜林病学注册表 (ICalmR) 建立以将复杂的临床表现与潜在的分子机制相关联.
研究的目的:
- 定义和链接的临床光谱的calmodulinopathy其分子基础.
- 在一项协作观察性研究中分析CALM阳性患者的临床和遗传数据.
主要方法:
- 国际卡尔莫杜林疗法注册 (ICalmR) 是一项国际性的,协作性的,观察性研究.
- 从140名注册受试者中收集和分析了临床和遗传数据 (97个指数病例,43个家庭成员).
主要成果:
- 卡尔莫杜林病呈现出不同的表型,包括长QT综合征 (LQTS) 和catecholaminergic多形 Ventricular Tachycardia (CPVT).
- 在20名患者中发生了神经症状.
- 虽然整体心律失常事件率仍然很高 (74%),但与2019年队列相比,心脏事件频率 (61%与85%) 和突然死亡 (9%与27%) 显著减少.
- 在30%的患者中发现心脏结构异常,发生致命的心力衰竭病例.
- 观察到越来越多的家族病例和具有多种表型的家庭.
结论:
- 卡尔莫杜林病症表现出多种类型的表现,从通道病变到综合征形式,临床范围从严重的心律失常到无症状病例.
- 较温和和家族形式的比例正在增加.
- 目前的管理策略,包括抗上腺体干预和通道阻断剂,缺乏基于证据的最终指导.
相关概念视频
Calmodulin-dependent Signaling
5.2K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
5.2K
Cardiomyopathy III: Hypertrophic Cardiomyopathy
16
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
16
Mutations
83.7K
Overview
83.7K
Chronic Kidney Disease II: Clinical Manifestations
30
Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
30
Cardiomyopathy II: Dilated Cardiomyopathy
11
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
11
Inborn Errors of Metabolism
195
Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
195

