通过新生儿查偶然发现母亲的谷氨酸酸性尿症I型:一个病例报告
Pierre-Edouard Grillet1,2, Cecilia Marelli3,4, Etienne Mondésert1,5
1Department of Biochemistry and Hormonology, Univ Montpellier, CHU Montpellier, France.
Molecular genetics and metabolism reports
|March 5, 2026
概括
新生儿查的扩大揭示了未经怀疑的母亲代谢状况,导致错误的阳性结果. 一位母亲因新生儿的低卡尼丁水平而被诊断为I型谷氨酸酸血症,突出显示了一种新的突变.
科学领域:
- 医学遗传学 医学遗传学
- 代谢障碍 代谢障碍 代谢障碍
- 新生儿查 新生儿查
背景情况:
- 法国扩大了新生儿查 (2023-2025年) 范围,包括肉酸代谢障碍.
- 这种扩张导致了假阳性病例的增加,通常与母亲的代谢状况有关.
研究的目的:
- 报告在法国的一位母亲身上首次偶然诊断出1型谷氨酸酸血症.
- 为了调查新生儿查卡尼丁代谢障碍的错误阳性的原因.
主要方法:
- 对新生儿低C0卡尼丁水平查结果的分析.
- 对母亲GCDH基因的遗传分析.
- 生物化学分析. 生物化学分析.
主要成果:
- 一个新生儿的低C0卡尼丁水平导致了母亲的谷氨酸酸血症I型的偶然诊断.
- 基因分析发现了母亲的GCDH基因中的一种新奇的,同卵性突变.
- 母亲呈现出无症状,高分泌或生物化学特征.
结论:
- 没有怀疑的母亲代谢障碍可能会导致扩大新生儿查的错误阳性.
- 像GCDH这样的基因中的新突变可以导致无症状的代谢状况.
- 新生儿查可以作为早期检测母亲代谢疾病的工具.
相关概念视频
Glucose Transporters
27.8K
Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
27.8K
Inborn Errors of Metabolism
966
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...
966
Pathophysiology of Diabetes
4.0K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
4.0K
Diabetes Mellitus: Type 2 and Gestational
5.2K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
5.2K


