相关实验视频
Updated: May 10, 2025

09:00
Studying the Integration of Adult-born Neurons
Published on: March 25, 2011
13.8K
整合RHD基因型定制以获得更准确的RhD抗原表型定制:一项回顾性研究
Mohammad Barouqa1, Nestor Dela Cruz1
1Department of Pathology, University of South Alabama, Mobile, AL 36688, USA.
Medicina (Kaunas, Lithuania)
|April 26, 2025
概括
RHD基因型鉴定准确地分类了Rh(D) 抗原状态,减少了合免疫,并优化了血液的使用. 这种分子检测可以改善输血医学中的患者安全和血液供应管理.
科学领域:
- 输血医学 输血医学
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
背景情况:
- 对于输血安全而言,Rh血型系统的多态性需要精确的Rh (D) 变体分类.
- 传统的血清学检测面临的挑战是弱和部分的Rh (D) 表型.
- 准确的Rh (D) 排型对于防止非免疫接种和确保有效利用血液至关重要.
研究的目的:
- 实施和评估RHD基因型鉴定对Rh (D) 抗原状态分类的影响.
- 在输血医学中提高Rh (D) 表型的准确性.
主要方法:
- 在南阿拉巴马大学医学中心和儿童和妇女医院 (2023-2024) 的回顾性研究.
- 在12994名患者中进行了ABO和RhD类型测试;在患者中进行了弱RhD测试和RHD基因型测试,结果不一致.
- 自动微板直接聚合用于弱Rh (D) 测试,然后进行分子基因型定型.
主要成果:
- 在25名具有弱/不一致RhD表型的患者中,52%的患者表现出弱RhD变异 (在儿科中最常见的弱型2).
- 在40%的病例中发现了部分RhD表型,主要在黑人个体中.
- 三名患者被重新分类为RhD阳性,接受了RhD阳性红血细胞而没有与免疫接种;四人被证实有风险,并且仍然是RhD阴性.
结论:
- RHD基因型定型显著提高了Rh(D) 抗原分类的准确性,减少了对免疫的风险和不必要的Rh免疫球蛋白使用.
- 分子检测优化了血液产品的利用,并减轻了对Rh (D) 阴性血液供应的压力.
- 将RHD基因型定型纳入常规实践对于输血医学中的患者安全和资源管理至关重要.
相关概念视频
Integration of Synaptic Events
1.3K
Synaptic integration mainly includes the summation of graded potentials. Graded potentials, regardless of their type, cause subtle alterations in membrane voltage, resulting in either depolarization or hyperpolarization. These incremental changes, when combined or summed, can propel the neuron toward its threshold. Consider, for example, a membrane experiencing a +15 mV shift, causing it to depolarize from -70 mV to -55 mV. In this scenario, graded potentials govern the membrane's ability...
1.3K
Integrator and Differentiator
696
Op-amp circuits have significant applications in various fields, including automotive engineering. One such application is cruise control systems in cars, where op-amp circuits are integral for maintaining a constant speed. In these systems, op-amps function as both integrators and differentiators.
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
696
Integrins
3.6K
Animal and protozoan cells do not have cell walls to help maintain shape and provide structural stability. Instead, these eukaryotic cells secrete a sticky mass of carbohydrates and proteins into the spaces between adjacent cells. This network of proteins and molecules is called an extracellular matrix or ECM.
Some ECM proteins assemble into a basement membrane to which the remaining components adhere. Proteoglycans typically form the bulk of the ECM while fibrous proteins, like collagen,...
Some ECM proteins assemble into a basement membrane to which the remaining components adhere. Proteoglycans typically form the bulk of the ECM while fibrous proteins, like collagen,...
3.6K
Integrated Healthcare System
1.5K
An integrated healthcare system (IHS) is a set of organizations that provides for or arranges to provide coordinated and continuous service to a defined population. The IHS takes responsibility for that particular population's health status and outcome, both clinically and fiscally. An integrated healthcare system is a well-organized, well-coordinated, and collaborative network. The integrated delivery system is a network that connects different healthcare providers to deliver organized,...
1.5K
¹H NMR Signal Integration: Overview
1.2K
The intensity of a signal, which can be represented by the area under the peak, depends on the number of protons contributing to that signal. The area under each peak is shown as a vertical line called an integral, with the integral value listed under it, as seen in the proton NMR spectrum of benzyl acetate. Each integral value is divided by the smallest integral value to obtain the ratio of the number of protons producing each signal. The ratio reveals the relative number of protons and not...
1.2K
Activation of Integrins
3.2K
Integrins bind ligands and transmit information from outside the cell to inside or vice-versa through an "outside-in signaling" or "inside-out signaling."
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...
3.2K

