DU Qing,HE Dan,HUANG Jian-hua,et al.Effect of Siwu Paste on Hematopoietic Function of Bone Marrow in Rats with Aplastic Anemia and Its Mechanism[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(03):92-98.
DU Qing,HE Dan,HUANG Jian-hua,et al.Effect of Siwu Paste on Hematopoietic Function of Bone Marrow in Rats with Aplastic Anemia and Its Mechanism[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(03):92-98. DOI: 10.13422/j.cnki.syfjx.20202405.
Effect of Siwu Paste on Hematopoietic Function of Bone Marrow in Rats with Aplastic Anemia and Its Mechanism
To explore the regulatory effect of Siwu paste on the bone marrow hematopoietic function of aplastic anemia (AA) model rats.
Method
2
SD rats were randomly divided into normal control group, model group, positive drug (Fufang E'jiao Jiang 10.8 g·kg
-1
) group, high-dose Siwu paste (22.68 g·kg
-1
) group and low-dose Siwu paste (5.67 g·kg
-1
) group. Acetophenazine (APH) combined with cyclophosphamide (CTX) injection was used to establish the aplastic anemia rat model. The administration groups were given the corresponding drugs (
ig
) for 15 consecutive days. The levels of white blood cells (WBC), red blood cells (RBC), hemoglobin (HGB), hematocrit (HCT) and platelets (PLT) in peripheral blood cells of rats were detected, thymus and spleen indexes were calculated and compared. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of interleukin-3 (IL-3) and interleukin-6 (IL-6) in rat serum. The pathological changes of bone marrow were observed by hematoxylin eosin (HE) staining. Western blot and Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) methods were used to detect Toll receptor 4 (TLR4) and nuclear transcription factor-
κ
B (NF-
κ
B) protein and gene expression in rat femoral bone marrow cells.
Result
2
Compared with the normal control group, the WBC, RBC, HGB, HCT and PLT levels of the model group were significantly reduced, the thymus index was significantly decreased, the spleen index was significantly increased, the serum IL-3 level was significantly decreased, and the IL-6 level was significantly increased. The number of neutrophils and megakaryocytes in the femoral bone marrow was reduced, and the medullary cavity was filled with edema fibrofatty tissue. The expressions of TLR4 and NF-
κ
B protein and mRNA in bone marrow cells were significantly increased (
P
<
0.01). Compared with the model group, the levels of WBC, RBC, HCT and PLT in peripheral blood cells of rats in the high-dose Siwu paste group increased, the thymus index increased, the spleen index decreased, the IL-3 level was significantly increased, the IL-6 level was significantly decreased, the pathological morphology of femoral bone marrow was slightly improved, and the expressions of TLR4 and NF-
κ
B protein and mRNA in bone marrow cells decreased significantly (
P
<
0.05,
P
<
0.01).
Conclusion
2
Siwu paste may improve the bone marrow hematopoietic function of rats with aplastic anemia by regulating the expression of the bone marrow inflammation signal pathway TLR4/NF-
κ
B.
关键词
Keywords
references
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