门德尔和非门德尔遗传之间的结肠直肠癌风险
Elizabeth A Hibler1, Brittany Szymaniak2, Mohammad Ali Abbass3
1Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Clinics in colon and rectal surgery
|April 12, 2024
概括
鉴定遗传性结直肠癌 (CRC) 的遗传风险因素正在得到改善. 多基因风险评分对CRC风险评估有希望,但临床整合仍然是一个挑战.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 公共卫生 公共卫生
背景情况:
- 遗传性结直肠癌 (CRC) 研究重点是监测计划的风险量化.
- 基因测试和全基因组测序方面的进步已经确定了许多低/中等透率的基因.
- 了解CRC风险的家族组成部分正在进步.
研究的目的:
- 审查目前遗传性结直肠癌风险评估的现状.
- 讨论多基因风险评分在CRC中的新兴作用.
- 确定将多基因风险评分纳入临床实践中的挑战.
主要方法:
- 关于遗传性结直肠癌遗传学的文献综述.
- 分析多基因风险评分在癌症风险评估中的有用性.
- 讨论临床实施策略.
主要成果:
- 已经确定了许多CRC的低/中等透基因.
- 多基因风险评分显示了CRC风险分层的有希望的潜力.
- 多基因风险评分的临床整合提出了重大挑战.
结论:
- 基因的进步正在提高遗传性CRC风险评估.
- 多基因风险评分为个性化CRC风险评估提供了一个有前途的工具.
- 需要进一步的研究,以克服对多基因风险评分临床实施的障碍.
相关概念视频
01:35Pedigree Analysis
84.2K
Overview
84.2K
01:18Dihybrid Crosses
74.8K
Overview
74.8K
02:03Law of Independent Assortment
55.7K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
55.7K
01:39Chromosomal Theory of Inheritance
55.3K
In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”
55.3K
01:25Inheritance
386
Gregor Mendel's pioneering work on the principles of inheritance fundamentally transformed our understanding of how traits are transmitted from generation to generation. His experiments with pea plants laid the groundwork for the discovery of genes, discrete units within organisms that control heredity.
Each gene exists in pairs, and the combination of these genes from both parents forms an individual's genotype. This genotype is a blueprint of potential traits. Examples of genotype...
Each gene exists in pairs, and the combination of these genes from both parents forms an individual's genotype. This genotype is a blueprint of potential traits. Examples of genotype...
386
01:49Law of Segregation
65.9K
When crossing pea plants, Mendel noticed that one of the parental traits would sometimes disappear in the first generation of offspring, called the F1 generation, and could reappear in the next generation (F2). He concluded that one of the traits must be dominant over the other, thereby causing masking of one trait in the F1 generation. When he crossed the F1 plants, he found that 75% of the offspring in the F2 generation had the dominant phenotype, while 25% had the recessive phenotype.
65.9K