purin 和 pyrimidine 代谢的先天性错误的神经表现
Marie-Cécile Nassogne1, Sandrine Marie2, Joseph P Dewulf3
1Service de Neurologie Pédiatrique, Cliniques Universitaires Saint-Luc, UCLouvain, B-1200, Brussels, Belgium; Institut des Maladies Rares, Cliniques Universitaires Saint-Luc, UCLouvain, B-1200, Brussels, Belgium.
概括
purin 和 pyrimidine 代谢的先天性错误会导致神经问题. 通过遗传和生物化学测试进行早期诊断对于治疗这些罕见的,往往未被确诊的代谢障碍至关重要.
科学领域:
- 生物化学 生物化学
- 遗传学 是一个遗传学.
- 神经学 神经学
背景情况:
- purin 和 pyrimidine 是必不可少的生物分子的基本组成部分.
- purin和pyrimidine代谢中的缺陷导致由于酶活性改变而导致代谢物度异常.
- 这些代谢错误已经在人类中记录了60多年.
研究的目的:
- 检查 purin 和 pyrimidine 代谢中的先天性错误的神经表现.
- 强调识别与这些疾病相关的非特异性临床症状的重要性.
- 强调早期诊断和治疗有助于改善结果的潜力.
主要方法:
- 文献综述,重点关注 purin 和 pyrimidine 代谢中的先天性错误的神经学表现.
- 分析临床症状,包括精神运动迟缓,,低血压,小头症,感官缺陷和肌肉症状.
- 讨论诊断方法,包括遗传检测和生化查.
主要成果:
- 与这些代谢缺陷相关的神经症状是多样化的,通常是不特定的.
- 这些情况可以表现为发育迟缓,发作,肌肉衰弱和感官障碍.
- 尽管罕见,但这些遗传性疾病可能被低诊断.
结论:
- 早期识别 purin 和 pyrimidine 代谢中的先天性错误对于有效的管理和改善患者预后至关重要.
- 临床医生应考虑基因和生物化学测试,当提出暗示性临床或实验室发现.
- 预计增加诊断工作将有助于识别更多受影响的个体.
相关概念视频
Inborn Errors of Metabolism
165
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...
165
Overview of Protein Metabolism
1.2K
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
1.2K
Parkinson's Disease: Overview
557
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
557
Nucleotide Excision Repair
3.5K
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
3.5K
Genomic Imprinting and Inheritance
34.6K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
34.6K
Disorders of the Nervous Tissue
1.3K
Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
1.3K


