Your browser doesn't support javascript.
loading
Lias overexpression alleviates pulmonary injury induced by fine particulate matter in mice.
Xu, Guangcui; Zhao, Yingzheng; Tao, Yingjun; Xiong, Cheng; Lv, Mengdi; Gao, Qiyu; Zhang, Fengquan; An, Zhen; Wu, Weidong.
Afiliación
  • Xu G; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Zhao Y; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Tao Y; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Xiong C; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Lv M; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Gao Q; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Zhang F; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • An Z; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
  • Wu W; School of Public Health, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China. wdwu2021@163.com.
Environ Geochem Health ; 45(8): 6585-6603, 2023 Aug.
Article en En | MEDLINE | ID: mdl-37341891
ABSTRACT
Oxidative stress and inflammation are mechanisms underlying toxicity induced by fine particulate matter (PM2.5). The antioxidant baseline of the human body modulates the intensity of oxidative stress in vivo. This present study aimed to evaluate the role of endogenous antioxidants in alleviating PM2.5-induced pulmonary injury using a novel mouse model (LiasH/H) with an endogenous antioxidant capacity of approximately 150% of its wild-type counterpart (Lias+/+). LiasH/H and wild-type (Lias+/+) mice were randomly divided into control and PM2.5 exposure groups (n = 10), respectively. Mice in the PM2.5 group and the control group were intratracheally instilled with PM2.5 suspension and saline, respectively, once a day for 7 consecutive days. The metal content, major pathological changes in the lung, and levels of oxidative stress and inflammation biomarkers were examined. The results showed that PM2.5 exposure induced oxidative stress in mice. Overexpression of the Lias gene significantly increased the antioxidant levels and decreased inflammatory responses induced by PM2.5. Further study found that LiasH/H mice exerted their antioxidant function by activating the ROS-p38MAPK-Nrf2 pathway. Therefore, the novel mouse model is useful for the elucidation of the mechanisms of pulmonary injury induced by PM2.5.
Asunto(s)
Palabras clave

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Material Particulado / Lesión Pulmonar Límite: Animals / Humans Idioma: En Revista: Environ Geochem Health Asunto de la revista: QUIMICA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Material Particulado / Lesión Pulmonar Límite: Animals / Humans Idioma: En Revista: Environ Geochem Health Asunto de la revista: QUIMICA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article