Related Experiment Video
Updated: May 23, 2026
Immunohistochemical Staining of B7-H1 (PD-L1) on Paraffin-embedded Slides of Pancreatic Adenocarcinoma Tissue
Published on: January 3, 2013
[Diagnostic value of soluble B7-H4 in malignant pleural effusion]
1Department of Respiratory Medicine, Nanjing Chest Hospital, Nanjing, China. xuchunhua74@163.com
Objective:
To explore the diagnostic value of soluble B7-H4 (sB7-H4) in tuberculous pleural effusion and malignant pleural effusion.
Methods:
A total of 98 patients of pleural effusion treated in Nanjing Chest Hospital from January 2007 to December 2009 were enrolled. The etiologies were tuberculous (n = 48) and malignant (n = 50). The levels of sB7-H4 in pleural effusion were detected by sandwich enzyme linked immunosorbent assay. The rational clinical diagnostic value was established by receiver operating characteristic (ROC) curves.
Results:
The level of sB7-H4 in malignant pleural effusion was significant higher than that in tuberculous effusion ((65.7 ± 5.8) vs (28.6 ± 8.7) µg/L, P < 0.05). The cut-off value of sB7-H4 was 36.5 µg/L for malignant pleural effusion. And the rates of sensitivity, specificity and accuracy were 92.0%, 83.3% and 87.8% respectively.
Conclusion:
The level of sB7-H4 may be used as a valuable parameter in the differentiation of tuberculous from malignant effusion.
Related Concept Videos
01:25Pleural Effusion I: Introduction
There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's criteria,...
01:28Pleural Effusion II: Symptoms and Management
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations: