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This study investigates the protective role of IMM-H004, a novel coumarin derivative, on hepatic ischemia-reperfusion injury (HIRI) in mice. All animal experiments in this paper have been approved by the Ethics Committee of Institute of Materia Medica, Chinese Academy of Medical Sciences. The experimental animals were divided into three groups, including sham group, model group, and IMM-H004 treatment group. Serum biochemical indicators were detected and H&E staining was used to assess liver damage. Real-time quantitative PCR (qPCR) was performed to analysis the mRNA content of inflammatory factors. Immunohistochemistry and immunofluorescence were used to observe neutrophil infiltration. Western blot was used to examine the protein levels of NOD-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein (ASC), cysteinyl aspartate specific proteinase-1 (caspase-1), and interleukin-1β (IL-1β). The results showed that IMM-H004 could significantly reduce the serum levels of alanine transaminase (ALT), aspartate transaminase (AST), lactate dehydrogenase (LDH). H&E results showed IMM-H004 could alleviate liver damage caused by HIRI. The mRNA expression of tumor necrosis factor-α (TNF-α), IL-1β, and interleukin-6 (IL-6) were decreased by IMM-H004 administration. Meanwhile, IMM-H004 could markedly inhibit neutrophil infiltration. Furthermore, IMM-H004 could significantly down-regulate the protein expression of NLRP3, ASC, caspase-1, and IL-1β, inhibiting the activation of NLRP3 inflammasome pathway. Our results confirmed that IMM-H004 could protect mice from HIRI and provide a theoretical foundation for IMM-H004 application for treating HIRI.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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