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相关概念视频

Blood Transfusion and Agglutination02:45

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...
14.0K
Rh Blood Group01:19

Rh Blood Group

2.7K
The Rhesus (Rh) antigen is crucial in determining blood groups and ensuring compatibility during blood transfusions.
2.7K
Hemoglobin01:24

Hemoglobin

7.4K
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.
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...
7.4K
Blood Types02:20

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...
22.3K
The ABO Blood Group01:12

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,...
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相关实验视频

Updated: Jan 15, 2026

Field Postmortem Rabies Rapid Immunochromatographic Diagnostic Test for Resource-Limited Settings with Further Molecular Applications
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摩洛哥的血红蛋白D-Ouled-Rabah:第一个案例报告

F Adil, N M'chichou, A Biaz

    Clinical laboratory
    |October 13, 2025
    PubMed
    概括

    首个摩洛哥血红蛋白D-Ouled Rabah病例被确定,这是一个罕见的β链变体. 这一发现凸显了在摩洛哥改善血红蛋白病变遗传查的必要性.

    科学领域:

    • 血液学 血液学 血液学
    • 遗传学 遗传学 是一个
    • 分子生物学分子生物学

    背景情况:

    • 血红蛋白D-Ouled Rabah是一种罕见的β链血红蛋白变体,主要在阿尔及利亚和马里图阿雷克人群中发现.
    • 这项研究记录了摩洛哥第一个异合体血红蛋白D-Ouled Rabah病例.

    研究的目的:

    • 在摩洛哥报告第一个被记录的血红蛋白D-Ouled Rabah异合体病例.
    • 通过遗传分析确认该变种,并讨论其对公共卫生的影响.

    主要方法:

    • 使用高性能液体染色学 (HPLC) 和毛细血管电泳检测血红蛋白变异检测.
    • 基因型分析包括DNA测序以确认特定突变.

    主要成果:

    • 患者呈现出一种最初被HPLC误认为血红蛋白E的变异.
    • 毛细管电泳正确地确定了该变体为血红蛋白D.
    • DNA测序证实了血红蛋白D-Ouled Rabah变体,揭示了60位的C>A核酸替代,导致20位的Asn>Lys替代.

    结论:

    • 这一案例凸显了血红蛋白变异的准确诊断方法的重要性.

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  • 加强基因查和监测计划对于了解摩洛哥罕见的血红蛋白病变至关重要.
  • 这些发现对与遗传性血液疾病相关的公共卫生策略有意义.