Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*
Original Article|Updated:2025-10-23
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Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*
Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*
中国结合医学杂志(英文版)2025年31卷第11期 页码:1011-1020
Affiliations:
1.Department of Emergency Medicine, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province (221002), China
2.Department of Emergency Medicine, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing (210002), China
3.Department of Emergency Medicine, Jinling Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing (210002), China
4.Department of Emergency Medicine, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, Jiangsu Province (221000), China
5.Intensive Care Unit, Suqian First Hospital, Suqian, Jiangsu Province (223800), China
6.Department of Emergency Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui Province (241000), China
Author bio:
Prof. SUN Zhao-rui, E-mail: sunzhr84@163.com
Funds:
the Natural Science Foundation of Jiangsu Province(BK20211136);Translational Medicine Foundation of Jiangsu Research Hospital Association(SYHKJ-XF-2025-22;SYHKJ-XF-2025-24);Development Fund Project of Affiliated Hospital of Xuzhou Medical University(XYFY202402)
Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*[J]. 中国结合医学杂志(英文版), 2025,31(11):1011-1020.
DING Wei-chao, CHEN Juan, LI Quan, et al. Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*[J]. Chinese journal of integrative medicine, 2025, 31(11): 1011-1020.
Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*[J]. 中国结合医学杂志(英文版), 2025,31(11):1011-1020. DOI: 10.1007/s11655-025-3927-5.
DING Wei-chao, CHEN Juan, LI Quan, et al. Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*[J]. Chinese journal of integrative medicine, 2025, 31(11): 1011-1020. DOI: 10.1007/s11655-025-3927-5.
Quercetin Confers Protection against Sepsis-Related Acute Respiratory Distress Syndrome by Suppressing ROS/p38 MAPK Pathway*
摘要
Abstract
Objective:
2
To identify the underlying mechanism by which quercetin (Que) alleviates sepsis-related acute respiratory distress syndrome (ARDS).
Methods:
2
In vivo
C57BL/6 mice were assigned to sham
cecal ligation and puncture (CLP)
and CLP+Que (50 mg/kg) groups (
n
=15 per group) by using a random number table. The sepsis-related ARDS mouse model was established using the CLP method.
In vitro
the murine alveolar macrophages (MH-S) cells were classified into control
lipopolysaccharide (LPS)
LPS+Que (10 μmol/L)
and LPS+Que+acetylcysteine (NAC
5 mmol/L) groups. The effect of Que on oxidative stress
inflammation
and apoptosis in mice lungs and MH-S cells was determined
and the mechanism with reactive oxygen s
pecies (ROS)/p38 mitogen-activated protein kinase (MAPK) pathway was also explored both
in vivo
and
in vitro
.
Results:
2
Que alleviated lung injury in mice
as reflected by a reversal of pulmonary histopathologic changes as well as a reduction in lung wet/dry weight ratio and neutrophil infiltration (
P
<
0.05 or
P
<
0.01). Additionally
Que improved the survival rate and relieved gas exchange impairment in mice (
P
<
0.01). Que treatment also remarkedly reduced malondialdehyde formation
superoxide dismutase and catalase depletion
and cell apoptosis both
in vivo
and
in vitro
(
P
<
0.05 or
P
<
0.01). Moreover
Que treatment diminished the release of inflammatory factors interleukin (IL)-1β
tumor necrosis factor-α
and IL-6 both
in vivo
and
in vitro
(
P
<
0.05 or
P
<
0.01). Mechanistic investigation clarified that Que administration led to a decline in the phosphorylation of p38 MAPK in addition to the suppression of ROS expression (
P
<
0.01). Furthermore
in LPS-induced MH-S cells
ROS inhibitor NAC further inhibited ROS/p38 MAPK pathway
as well as oxidative stress
inflammation
and cell apoptosis on the basis of Que treatment (
P
<
0.05 or
P
<
0.01).
Conclusion:
2
Que was found to exert anti-oxidative
anti-inflammatory
and anti-apoptotic effects by suppressing the ROS/p38 MAPK pathway
thereby conferring protection for mice against sepsis-related ARDS.
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