患有糖原储存疾病Ib型患者的遗传变异和临床特征
1Department of Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Institute of Pediatric Research, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
JAMA network open
|February 26, 2025
概括
糖原储存疾病Ib型 (GSDIb) 影响葡萄糖代谢,并呈现出各种临床特征,包括感染和炎症性肠病 (IBD). 这项研究扩大了对GSDIb的理解.
科学领域:
- 代谢障碍和遗传学
- 罕见疾病和遗传突变
- 儿科内分泌学和胃肠道学
背景情况:
- 糖原储存疾病Ib型 (GSDIb) 是一种罕见的遗传代谢障碍.
- 它是由葡萄糖-6-酸盐输送器功能受损造成的,导致葡萄糖失调.
- 关于GSDIb的综合遗传和临床谱的数据有限,特别是在亚洲人群中.
研究的目的:
- 在中国患者中划分GSDIb的遗传变异和临床表现.
- 调查长期结果,包括生长,感染,炎症性肠病 (IBD) 和死亡率.
- 为了识别与GSDIb.相关的新型遗传变异.
主要方法:
- 对113名被诊断患有GSDIb.的中国患者进行了回顾性队列研究.
- 从2000年11月到2024年6月在一个机构收集的数据.
- 评估生化参数,临床特征 (感染,IBD,脏,心血管,生长,青春期),死亡率和神经发育结果.
主要成果:
- 113名患者 (85%为儿童) 诊断出GSDIb,发现了38种新的SLC37A4变体.
- 常见的早期症状包括低血糖 (45%);后来,矮身 (75%) 和感染 (75%) 主导.
- 46%的人患有IBD,14%的人患有IBD相关的关节炎;9%的人因并发症而死亡.
结论:
- 这项研究扩大了已知的GSDIb.的遗传和临床谱.
- 它强调了GSDIb与胃肠道 (IBD),生长和生存结果之间的显著关联.
- 这些发现强调了对GSDIb患者IBD相关关节炎等并发症的全面监测的重要性.
相关概念视频
Inborn Errors of Metabolism
122
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...
122
Lysosomal Hydrolases
3.7K
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
3.7K
Glucose Transporters
22.4K
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:
22.4K
Diabetes Mellitus: Overview and Type I Subtype
2.4K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
2.4K
Incomplete Dominance
20.9K
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.
20.9K
Overview of Carbohydrate Metabolism
674
Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
674


