概括
ABO血型基因定型揭示了一种不典型的B (A) 亚组. 基因测序对于准确的ABO亚群确定至关重要,因为单独的血清学可能不可靠.
科学领域:
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
背景情况:
- B (A) 亚组通常呈现出 AB 弱的血清学特征,通常是由于 B (A) 和 O 基因组之间的异构性.
- 理论预测表明,当B (A) 与A等位基异构时,一个正常的AB表型.
- 这项研究调查了一个B(A) 基因组与AB弱的表型相关的情况,这与传统的基因型-表型相关性相矛盾.
研究的目的:
- 为了研究与B (A) 基因相关的非典型的AB弱血清学现象的遗传基础.
- 挑战和完善对 ABO 基因型-表型相关性的理解.
- 强调分子方法对于精确的血型分型的必要性.
主要方法:
- 采集了血液样本,并使用微柱玻璃珠和盐水管方法分析了ABO血型.
- 直接测序和单种型测序被用于识别特定突变并确定ABO基因型.
- 该研究涉及一名41岁的孕妇作为主要病例.
主要成果:
- 血清检测证实该血型为亚组AB弱.
- 直接和单种型测序确定了基因型为ABO*A1.02/BA.04.
- A1.02等位基因携带一个c.467C>T突变,而BA.04等位基因具有多个突变 (c.297A>G,c.526C>G,c.640A>G,c.657C>T,c.703G>A,c.796C>A,c.803G>C和c.930G>A).
结论:
- BA.04和A1.02等位基因的同时出现导致了B (A) 亚组的非典型血清学特征.
- 仅仅血型血清学不足以可靠地预测ABO亚组.
- 准确的 ABO 亚组确定需要基因测序,以便精确的基因型定型.
更多相关视频
07:26High-resolution Melting PCR for Complement Receptor 1 Length Polymorphism Genotyping: An Innovative Tool for Alzheimer's Disease Gene Susceptibility Assessment
Published on: July 18, 2017
12.2K
09:38FSL Constructs: A Simple Method for Modifying Cell/Virion Surfaces with a Range of Biological Markers Without Affecting their Viability
Published on: August 5, 2011
14.3K
相关概念视频
Blood Typing
2.4K
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.
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
2.4K
Blood Types
22.3K
Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
22.3K
Blood Transfusion and Agglutination
14.0K
Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
14.0K
The ABO Blood Group
4.6K
The ABO blood group system is a critical element of transfusion medicine, essential for determining blood compatibility in transfusions and organ transplants. It is based on specific antigens, or agglutinogens, present on the surface of red blood cells (RBCs) and corresponding antibodies, or agglutinins, in the blood plasma.
Antigens in the ABO Blood Group System
Antigens are substances that can trigger an immune response, leading to the production of antibodies. In the ABO blood group system,...
Antigens in the ABO Blood Group System
Antigens are substances that can trigger an immune response, leading to the production of antibodies. In the ABO blood group system,...
4.6K
Blood Transfusion
2.1K
Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
2.1K
Rh Blood Group
2.7K
The Rhesus (Rh) antigen is crucial in determining blood groups and ensuring compatibility during blood transfusions.
2.7K
