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To observe the intervention effects of Radix Angelica Sinensis and Radix Hedysari ultrafiltration (RAS-RH) on the NOD-like receptor thermal protein domain associated protein 3/cysteinyl aspartate specific proteinase-1/gasdermin D (NLRP3/Caspase-1/GSDMD) signaling pathway and radiation-induced heart disease (RIHD).
A model was constructed using a single whole-body X-ray irradiation at a dose of 8 Gy. SPF-grade male Wistar rats were randomly divided into the normal group, the model group (X-ray 8 Gy), the experimental-L group (X-ray 8 Gy+25 mg·kg-1·d-1 RAS-RH by gavage) and the experimental-H group (X-ray 8 Gy+50 mg·kg-1·d-1 RAS-RH by gavage), with ten rats in each group. 2 h after the last administration, cardiac function was evaluated using echocardiography; serum levels of inflammatory factors, including interleukin-18 (IL-18), IL-1β and tumor necrosis factor-alpha (TNF-α) were measured using enzyme-linked immunosorbent; relative protein expression levels of NLRP3, Caspase-1, GSDMD, IL-18 and IL-1β in myocardial tissue were detected using Western blotting.
The left ventricular ejection fraction (LVEF) in experimental-L group, experimental-H group, normal group and model group were (66.61±1.04)%, (71.89±0.69)%, (81.45±1.34)% and (47.62±1.67)%; the serum levels of IL-18 were (171.21±3.92), (145.60±3.37), (125.51±2.94) and (201.80±4.05) ng·mL-1; the IL-1β levels were (43.03±0.68), (41.12±1.01), (36.12±0.98) and (51.19±0.85) ng·mL-1; the TNF-α levels were (484.96±3.35), (441.24±3.94), (381.32±4.16) and (566.51±4.98) ng·mL-1; the relative expression levels of NLRP3 protein in myocardial tissue were 0.54±0.02, 0.34±0.02, 0.20±0.02 and 0.75±0.03; the relative expression levels of Caspase-1 protein were 0.52±0.02, 0.44±0.02, 0.36±0.02 and 0.65±0.03; the relative expression levels of GSDMD-NT protein were 0.53±0.02, 0.42±0.01, 0.33±0.02 and 0.73±0.03; the relative expression levels of IL-18 protein were 0.50±0.02, 0.42±0.01, 0.13±0.01 and 0.63±0.02; the relative expression levels of IL-1β protein were 0.59±0.02, 0.42±0.02, 0.27±0.02 and 0.79±0.03, respectively. The indicators in the model group were significantly different compared to the normal group, and the indicators in the experimental-L and experimental-H groups were significantly different from the model group, with statistical significance (all P<0.05).
RAS-RH may improve RIHD by regulating the NLRP3/Caspase-1/GSDMD signaling pathway.
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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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