Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine
Ammonia (NH3) is a common air pollutant, which poses a serious threat to farm animals. L-selenomethionine is organic selenium (Se), which can inhibit intracellular ROS generation, block ROS-dependent autophagy, promote mitochondrial energy metabolism, and enhance the body's immunity. Lung, as a...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-09-01
|
| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651322007771 |
| _version_ | 1818486865434509312 |
|---|---|
| author | Anqi Wang Xinxin Zhang Huan Wang Houjuan Xing |
| author_facet | Anqi Wang Xinxin Zhang Huan Wang Houjuan Xing |
| author_sort | Anqi Wang |
| collection | DOAJ |
| description | Ammonia (NH3) is a common air pollutant, which poses a serious threat to farm animals. L-selenomethionine is organic selenium (Se), which can inhibit intracellular ROS generation, block ROS-dependent autophagy, promote mitochondrial energy metabolism, and enhance the body's immunity. Lung, as an important organ of the respiratory system, is highly susceptible to the toxic effects of NH3. However, there were few studies on the mechanism of toxic effects of NH3 on lung tissues. The aim of this study was to investigate the effect of NH3 on the lungs in pigs and the alleviating effect of L-selenomethionine. Twenty-four Large White*Duroc*Min pigs were randomly assigned to 4 groups: control group, NH3 group, Se group, and NH3 +Se group. The results showed that exposure to NH3 caused damage and inflammation in lung tissues and significantly increased blood NH3 concentration. NH3 induced changes of oxidative stress indexes (GSH, GSH-Px, SOD, MDA, Keap1, Nrf2, and HO-1) and expressions of energy metabolism related genes (HK1, HK2, PFK, PK, LDHA, and HIF-1α). Ultrastructure showed that mitochondrial damage and autophagosome increased significantly, and the expression levels of autophagy related genes (Beclin1, ATG5, ATG7, ATG10, and p62) changed. However, the addition of L-selenomethionine alleviated the above changes, but there was still a significant difference compared with the control group (P < 0.05). This finding can provide a new evidence for mitigation of NH3 toxicity. |
| first_indexed | 2024-12-10T16:28:31Z |
| format | Article |
| id | doaj.art-414cdb4eb1bf40fa84d0234c6979f3e5 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-10T16:28:31Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-414cdb4eb1bf40fa84d0234c6979f3e52022-12-22T01:41:34ZengElsevierEcotoxicology and Environmental Safety0147-65132022-09-01242113937Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionineAnqi Wang0Xinxin Zhang1Huan Wang2Houjuan Xing3College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, the People’s Republic of ChinaCollege of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, the People’s Republic of ChinaCollege of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, the People’s Republic of ChinaCorresponding author.; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, the People’s Republic of ChinaAmmonia (NH3) is a common air pollutant, which poses a serious threat to farm animals. L-selenomethionine is organic selenium (Se), which can inhibit intracellular ROS generation, block ROS-dependent autophagy, promote mitochondrial energy metabolism, and enhance the body's immunity. Lung, as an important organ of the respiratory system, is highly susceptible to the toxic effects of NH3. However, there were few studies on the mechanism of toxic effects of NH3 on lung tissues. The aim of this study was to investigate the effect of NH3 on the lungs in pigs and the alleviating effect of L-selenomethionine. Twenty-four Large White*Duroc*Min pigs were randomly assigned to 4 groups: control group, NH3 group, Se group, and NH3 +Se group. The results showed that exposure to NH3 caused damage and inflammation in lung tissues and significantly increased blood NH3 concentration. NH3 induced changes of oxidative stress indexes (GSH, GSH-Px, SOD, MDA, Keap1, Nrf2, and HO-1) and expressions of energy metabolism related genes (HK1, HK2, PFK, PK, LDHA, and HIF-1α). Ultrastructure showed that mitochondrial damage and autophagosome increased significantly, and the expression levels of autophagy related genes (Beclin1, ATG5, ATG7, ATG10, and p62) changed. However, the addition of L-selenomethionine alleviated the above changes, but there was still a significant difference compared with the control group (P < 0.05). This finding can provide a new evidence for mitigation of NH3 toxicity.http://www.sciencedirect.com/science/article/pii/S0147651322007771NH3 exposureLung damageL-selenomethionineToxicity assessmentScreening of attenuated active substances |
| spellingShingle | Anqi Wang Xinxin Zhang Huan Wang Houjuan Xing Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine Ecotoxicology and Environmental Safety NH3 exposure Lung damage L-selenomethionine Toxicity assessment Screening of attenuated active substances |
| title | Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine |
| title_full | Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine |
| title_fullStr | Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine |
| title_full_unstemmed | Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine |
| title_short | Recent evidence for toxic effects of NH3 exposure on lung injury: Protective effects of L-selenomethionine |
| title_sort | recent evidence for toxic effects of nh3 exposure on lung injury protective effects of l selenomethionine |
| topic | NH3 exposure Lung damage L-selenomethionine Toxicity assessment Screening of attenuated active substances |
| url | http://www.sciencedirect.com/science/article/pii/S0147651322007771 |
| work_keys_str_mv | AT anqiwang recentevidencefortoxiceffectsofnh3exposureonlunginjuryprotectiveeffectsoflselenomethionine AT xinxinzhang recentevidencefortoxiceffectsofnh3exposureonlunginjuryprotectiveeffectsoflselenomethionine AT huanwang recentevidencefortoxiceffectsofnh3exposureonlunginjuryprotectiveeffectsoflselenomethionine AT houjuanxing recentevidencefortoxiceffectsofnh3exposureonlunginjuryprotectiveeffectsoflselenomethionine |