The characteristics of plasma lipids in silicosis rat models were studied based on lipid metabolomics
10.3760/cma.j.cn121094-20221124-00558
- VernacularTitle:基于脂质代谢组学研究矽肺大鼠模型中血浆脂质特征
- Author:
Hailan HE
1
;
Rong QI
;
Jie CUI
;
Hongli WANG
;
Xiaohui HAO
;
Heliang LIU
Author Information
1. 华北理工大学公共卫生学院，唐山 063210
- Keywords:
Silicosis;
Plasma;
Metabonomics
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2023;41(8):569-575
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To screen the differential metabolites and metabolic pathways in silicosis model by analyzing plasma metabolomics of silicosis rats.Methods:In May 2021, twenty male SD rats were randomly divided into control group (C), 1-week silicosis group (S1W), 2-week silicosis group (S2W) and 4-week silicosis group (S4W), with 5 rats in each group. Rats were intratracheally instillated with 1ml crystalline SiO 2 suspension (50 mg/ml) or normal saline and were sacrificed after 1 week, 2 weeks and 4 weeks, HE staining was used to observe the lung pathology of rats. The plasma samples were analyzed by UPLC-IMS-QTOF mass spectrometer to screen out potential differential metabolites in silicosis models and analyze their lipid enrichment. Results:HE results showed that nodules formed in the silicosis model group, and with the extension of time, nodules gradually increased and alveolar structure was gradually destroyed. Metabolomics screened out 14 differential metabolites in S1W, 24 in S2W, and 28 in S4W, and found that the differential metabolites were mainly enriched in the metabolism of glycerophospholipid metabolism, fatty acid degradation, Glycosylphosphatidylinositol (GPI) -anchor biosynthesis, fatty acid elongation and other metabolic pathways.Conclusion:There are significant changes in plasma lipid metabolites in silicosis rat models.
