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相关概念视频

Hemoglobin01:24

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Hemoglobin is a globular protein made up of four subunits. Two of these subunits are alpha chains, and the other two are beta chains. Each subunit contains a molecule of heme, which has an iron atom and can bind to oxygen. When an oxygen molecule binds to one heme group, it changes the shape of hemoglobin, making it easier for the other heme groups to bind oxygen as well.
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Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
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Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
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Understanding an individual's blood group is a critical component of transfusion medicine. It ensures compatibility in blood transfusions, organ transplants, and even during pregnancy. Determining these blood groups involves the ABO and Rh blood typing systems, utilizing specific antigens and corresponding anti-sera to identify an individual's blood type.
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相关实验视频

Updated: Sep 14, 2025

Genetic Variant Detection in the CALR gene using High Resolution Melting Analysis
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在Jharkhand东部对血红蛋白病变的突变分析.

Shambhavi1, Umesh Kumar Ojha2, Mahino Fatima3

  • 1Department of Pediatrics, Shaheed Nirmal Mahto Medical College , Dhanbad, Jharkhand India.

Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion
|July 21, 2025
PubMed
概括

这项研究调查了印度哈邦的β-thalassemia突变. 常见的c.92+5C>G突变在输血依赖患者中非常普遍,突出区域遗传变异.

关键词:
血红蛋白 蒙罗罗 血红蛋白突变突变是一种突变.泰拉西米亚 泰拉西米亚

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科学领域:

  • 医学遗传学 医学遗传学
  • 血液学 血液学 血液学

背景情况:

  • 血病是全球普遍存在的单一性疾病,印度有大量患者.
  • 在印度,β-thalassemia特征的患病率差异很大,因此需要本地化遗传数据.
  • 关于哈邦的β-thalassemia突变的数据有限,这是一个患病率很高的地区.

研究的目的:

  • 为了识别和表征在哈德州的输血依赖患者中普遍存在的β-thalassemia突变.
  • 分析儿科和青少年患者 (6个月至18岁) 的突变谱.

主要方法:

  • 对51名依赖输血的沙拉西米亚患者的回顾性分析.
  • 收集基本的人口统计数据和血液样本进行遗传分析.
  • 使用基因测序识别突变.

主要成果:

  • 最常见的基因型是严重的β+/严重的β+ (78.4%),其次是严重的β+/严重的β0.
  • 突变c.92+5C>G是最常见的,在88.2%的患者中观察到.
  • 发现了一例罕见的Hb Monroe (c.92G>C) 突变病例.

结论:

  • 与国家数据相比,c.92+5C>G突变在哈克邦的血病患者中显示出异常高的频率.
  • 这项研究解决了印度一个代表性不足的地区关于β-thalassemia突变谱的知识差距.
  • 研究结果强调了区域特异性基因查对于有效的血病管理的重要性.