相关实验视频
Updated: Jan 18, 2026

08:46
A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis
Published on: August 12, 2020
6.9K
新生儿白细胞细胞群数据:参考间隔和检测败血症和死性肠球炎的相关性
Flavia Ferraro1, Laura Fillistorf2, Varvara Dimopoulou2
1Clinic of Neonatology, Department Mother-Woman-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland. flavia.ferraro@hug.ch.
Pediatric research
|June 6, 2025
概括
这项研究建立了新生儿细胞群数据 (CPD) 的参考间隔,并发现中性粒细胞光强度 (NE-SFL) 是新生儿早期败血症检测的有希望的生物标志物. 与传统测试相比,NE-SFL的准确性更高.
科学领域:
- 新生儿免疫学 新生儿免疫学
- 临床诊断 临床诊断 临床诊断
- 发现生物标志物的发现.
背景情况:
- 及时诊断新生儿败血症至关重要,但具有挑战性.
- 细胞种群数据 (CPD) 为潜在的败血症检测提供了高分辨率的白细胞表型.
- 这项研究旨在建立新生儿CPD参考间隔,并评估它们在检测败血症和死性肠球炎 (NEC) 中的有用性.
研究的目的:
- 确定新生儿白细胞细胞群数据 (CPD) 的参考间隔.
- 评估CPD的诊断性能,特别是NE-SFL,对于新生儿败血症和NEC.
- 将CPD准确度与传统生物标志物 (如CBC和CRP) 进行比较.
主要方法:
- 从住院新生儿中的中性粒细胞,单细胞和淋巴细胞分析了CPD.
- 从健康的参考组中推导出参考区间 (5-95百分位数).
- 评估了对CBC和CRP检测败血症/NEC的CPD性能.
主要成果:
- 为新生儿慢性肺炎建立了参考间隔,显示出明显的轨迹和随着年龄的增长而减少的分布宽度.
- 败血症/NEC病例中的CPD与参考组有显著差异,特别是中性粒细胞光强度 (NE-SFL).
- 与其他CPD,CBC和CRP相比,NE-SFL显示出更高的准确性 (90%的灵敏度,76%的特异性).
结论:
- 建立了新生儿CPD参考间隔,帮助解释这些临床前参数.
- 确定NE-SFL作为潜在的败血症生物标志物,具有卓越的诊断准确性.
- CPD,特别是NE-SFL,提供了一种具有成本效益的实时工具,用于改进新生儿败血症检测.
相关概念视频
Disorders of Leukocytes
1.8K
Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
1.8K
Structure and Function of Leukocytes
3.8K
An adult in good health typically has between 4,500 and 11,000 leukocytes, or white blood cells, per microliter of blood, which constitutes about 1% of the total blood volume. Unlike red blood cells, white blood cells contain a nucleus and other cellular organelles but do not have hemoglobin. Most white blood cells reside in connective tissues, particularly in lymphatic organs such as the lymph nodes, with only a small fraction present in circulating blood.
White blood cells protect the body...
White blood cells protect the body...
3.8K

