相关实验视频

Updated: Mar 14, 2026

In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time

In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time

Published on: May 24, 2020

通过机器学习支持的集群分析,揭示在传播的血管内凝血中独特的临床表型

Qingbo Zeng^1,2, Junjie Zeng¹, Qingwei Lin¹

¹Intensive Care Unit, The 908th Hospital of Chinese PLA Logistic Support Force, Nanchang, China.

Frontiers in molecular biosciences

|March 13, 2026

概括

机器学习在ICU患者中确定了两种传播性血管内凝血 (DIC) 亚型:轻度和重度. 严重的亚型显示出更高的死亡风险,有助于个性化治疗这一关键状况.

科学领域:

关键护理医学关键护理医学
计算生物学计算生物学
血液学血液学血液学

背景情况:

传播性血管内凝血 (DIC) 是一种危及生命的ICU疾病,其原因和结果各异.
区分DIC患者的表型是具有挑战性的,阻碍了个性化治疗策略.

研究的目的:

应用无监督机器学习 (ML) 来分层DIC患者到不同的表型.
根据已识别的亚型,为DIC提供更个性化的治疗方法.

主要方法:

对134名入住ICU的DIC患者进行了回顾性分析.
使用关键变量进行无监督机器学习 (共识聚类):氨酸-抗氨酸复合物 (TAT),等离子体α2-等离子体抑制剂复合物 (PIC),组织等离子体激活剂-抑制剂复合物 (tPAIC) 和血栓模块素 (TM).
后勤回归用于评估表型与临床终点之间的关联.

主要成果:

确定了两个不同的DIC亚型:轻度 (n=79) 和严重 (n=55).
在亚型之间的凝血标记 (TAT) 和临床参数 (HR,SBP) 中观察到显著差异.
严重的亚型与7天 (OR 4.71) 和28天 (OR 2.29) 死亡风险的增加有关.

结论:

无监督的ML成功地将DIC患者分为两种不同的表型.
这些表型表现出不同的实验室概况和相关的死亡风险.
这些发现支持基于已识别的亚型为DIC患者提供个性化治疗策略.

关键词:

集群分析集群分析集群分析扩散的血管内凝血.机器学习是机器学习.现象类型现象类型分层分层是分层的分层.

更多相关视频

Author Spotlight: Integrated Multi-Omics Analysis for Unveiling Multicellular Immune Signatures in Clinical Heart Attack Cohorts

Author Spotlight: Integrated Multi-Omics Analysis for Unveiling Multicellular Immune Signatures in Clinical Heart Attack Cohorts

Published on: September 20, 2024

A Data-Driven Approach to Quantifying Immune States in Sepsis

A Data-Driven Approach to Quantifying Immune States in Sepsis

Published on: February 7, 2025

相关概念视频

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...

Coagulation

Coagulation

The coagulation phase is a critical part of the body's process to prevent blood loss following injury to blood vessels. It involves chemical reactions that form a clot to seal the injured area. The clotting process begins shortly after injury, within 15-20 seconds for severe damage and 1-2 minutes for minor injuries.
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...

Disorders of Hemostasis

Disorders of Hemostasis

Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.

Clot Retraction and Fibrinolysis

Clot Retraction and Fibrinolysis

After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.