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Xu S, Qiu Z, Zheng C, Li L, Jiang H, Zhang F, Wang Z. Effect of miR-21-3p on lung injury in rats with traumatic hemorrhagic shock resuscitated with sodium bicarbonate Ringer's solution. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1331. [PMID: 36660723 PMCID: PMC9843335 DOI: 10.21037/atm-22-5148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/18/2022] [Indexed: 12/27/2022]
Abstract
Background Restricted fluid resuscitation is the most important early method for treating traumatic hemorrhagic shock (THS). This study sought to explore whether micro ribonucleic acid (miR)-21-3p affected resuscitated THS rats by regulating the glycocalyx and inflammation. Methods MiRNAs extracted from the lung tissues were analyzed by miRNA microarray assays. A rat model of THS was induced by hemorrhage from a left femur fracture. The pathological change in the lung tissues and glycocalyx structure was observed by hematoxylin and eosin staining and a transmission electron microscope examination. The miR-21-3p expression in the lung tissues and serum was detected by real-time quantitative polymerase chain reaction (RT-qPCR). The levels of glycocalyx-related factors and inflammation-related factors were determined by enzyme linked immunosorbent assays. The expression of glycocalyx-related proteins, cell junction-related proteins, and the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/nuclear factor kappa B (NF-κB) signaling pathway-related proteins was analyzed by Western blot. Results After RT-qPCR verification, the variation trend of miR-21-3p was in line with expected trends. The mean arterial pressure (MAP) and heart rate (HR) were decreased, and the lung injury and damage to the glycocalyx were all aggravated in the THS rats resuscitated with sodium bicarbonate Ringer's solution (BRS) or sodium lactate Ringer's solution (LRS). The expression of miR-21-3p was decreased in the THS rats resuscitated with BRS and increased in the THS rats resuscitated with LRS, and the upregulation of miR-21-3p further decreased the MAP and HR, and increased the levels of syndecan-1 (SDC-1), heparanase-1 (HPA1), interleukin (IL)-6, IL-1β, and tumor necrosis factor alpha (TNF-α) in the serum of the THS rats resuscitated with BRS. The upregulation of miR-21-3p also increased the expression of SDC-1, HPA1, β-catenin, matrix metallopeptidase (MMP)2, and MMP9, but decreased the expression of E-cadherin (E-cad) and activated the PI3K/Akt/NF-κB signaling pathway in the THS rats resuscitated with BRS and transfected with miR-21-3p compared to that of the THS rats resuscitated with BRS and transfected with miR-negative control (NC). Conclusions miR-21-3p promoted inflammation and glycocalyx damage by activating the PI3K/Akt/NF-κB signaling pathway, thereby aggravating the lung injury in the THS rats resuscitated with BRS.
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Affiliation(s)
- Shugen Xu
- Cheeloo College of Medicine, Shandong University, Jinan, China;,Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China;,Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
| | - Zhaolei Qiu
- Department of Emergency Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;,Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Chuanming Zheng
- Department of Emergency Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;,Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Lei Li
- Department of Emergency Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;,Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Hai Jiang
- Department of Emergency Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;,Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Fulong Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;,Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Zhenjie Wang
- Cheeloo College of Medicine, Shandong University, Jinan, China;,Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China;,Department of Emergency Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;,Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
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Kaczensky P, Kuehn R, Lhagvasuren B, Pietsch S, Yang W, Walzer C. Connectivity of the Asiatic wild ass population in the Mongolian Gobi. BIOLOGICAL CONSERVATION 2011; 144:920-929. [PMID: 21461051 PMCID: PMC3040789 DOI: 10.1016/j.biocon.2010.12.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 10/22/2010] [Accepted: 12/20/2010] [Indexed: 05/06/2023]
Abstract
Long-distance migrations of wildlife have been identified as important biological phenomena, but their conservation remains a major challenge. The Mongolian Gobi is one of the last refuges for the Asiatic wild ass (Equus hemionus) and other threatened migratory mammals. Using historic and current distribution ranges, population genetics, and telemetry data we assessed the connectivity of the wild ass population in the context of natural and anthropogenic landscape features and the existing network of protected areas. In the Mongolian Gobi mean biomass production is highly correlated with human and livestock density and seems to predict wild ass occurrence at the upper level. The current wild ass distribution range largely falls into areas below the 250 gC/m(2)/year productivity isoline, suggesting that under the present land use more productive areas have become unavailable for wild asses. Population genetics results identified two subpopulations and delineated a genetic boundary between the Dzungarian and Transaltai Gobi for which the most likely explanation are the mountain ranges separating the two areas. Home ranges and locations of 19 radiomarked wild asses support the assumed restricting effects of more productive habitats and mountain ranges and additionally point towards a barrier effect of fences. Furthermore, telemetry data shows that in the Dzungarian and Transaltai Gobi individual wild ass rarely ventured outside of the protected areas, whereas in the southeast Gobi asses only spend a small fraction of their time within the protected area network. Conserving the continuity of the wild ass population will need a landscape level approach, also including multi-use landscapes outside of protected areas, particularly in the southeast Gobi. In the southwest Gobi, allowing for openings in the border fence to China and managing the border area as an ecological corridor would connect three large protected areas together covering over 70,000 km(2) of wild ass habitat.
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Affiliation(s)
- Petra Kaczensky
- Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Austria
- Corresponding author. Address: Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Savoyenstrasse 1, A-1160 Vienna, Austria. Tel.: +43 1 4890915 181; fax: +43 1 4890915 333.
| | - Ralph Kuehn
- Unit of Molecular Zoology, Department of Animal Science, Technical University Munich, Germany
| | - Badamjav Lhagvasuren
- Mammalian Ecology Laboratory, Institute of Biology, Mongolian Academy of Science, Mongolia
- WWF Mongolia, Ulaanbaatar, Mongolia
| | - Stephanie Pietsch
- Unit of Molecular Zoology, Department of Animal Science, Technical University Munich, Germany
| | - Weikang Yang
- Xinjiang Institute of Ecology and Geography, Urumqi, Xinjiang, China
| | - Chris Walzer
- Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Austria
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