根据脏遗传学测试对变异的重新分类:不常见但对诊断和管理具有影响力
Euyn Lim1, Chloe Borden2, Seysha Mehta2
1Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
Kidney international reports
|May 6, 2024
概括
在病中,基因检测的重新分类并不常见,但至关重要. 大多数变化涉及不确定的意义的变体,影响诊断和患者管理.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 遗传学 遗传学 是一个
- 临床诊断 临床诊断 临床诊断
背景情况:
- 遗传检测在病学中越来越多地使用.
- 在基因检测后对变异重新分类的现实数据有限.
研究的目的:
- 评估接受脏遗传检测的患者变异重新分类的频率和影响.
主要方法:
- 对425名经过基因检测的患有脏疾病的患者进行了回顾性分析.
- 数据是从2019年1月到2023年6月在克利夫兰诊所脏遗传学诊所收集的.
- 审查了来自10个临床实验室的临床数据,实验室结果和遗传检测报告.
主要成果:
- 5%的患者的遗传变异被重新分类,其中63%是升级.
- 79%的重新分类变异最初被报告为具有不确定的意义的变异 (VUS).
- 变异重新分类导致60%的受影响患者的新诊断或改变诊断,在67%的病例中影响了临床管理.
结论:
- 变种重新分类,虽然不常见,但对诊断和管理遗传性病具有临床意义.
- 重新分类通常涉及VUS,并可能导致实质性的诊断和治疗变化.
- 需要进一步的研究来确定变种重新分类的预测因素.
更多相关视频
07:15Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
Published on: January 16, 2019
11.0K
11:35Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
Published on: August 21, 2016
13.0K
相关概念视频
Factors Affecting Renal Clearance: Renal Impairment
90
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
90
Renal Failure: Dose Adjustments
85
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
85
Genetic Screens
4.9K
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
4.9K
Renal Tubule and Collecting Duct
941
The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
941
Renal Clearance
908
The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
908
Comparing Copy Number Variations and SNPs
17.7K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
17.7K
