Zhongguo shi yan xue ye xue za zhi · 2020
[Establishment of Acquired Aplastic Anemia SD Rat Model].
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Wang Ping-Ping, Li Jia-Ni, Song Xin-Long, Wang Ai-Di, Liu Bao-Shan
Аннотация
OBJECTIVE: To establish a stable and rapidly rat model acquired aplastic anemia.
METHODS: The SD rats were exposed to 137Csγ-ray at 3.5 and 4.0 Gy ( 91 cGy/min), and intraperitoneally injected with CTX at 35 mg/( kg·d) and CHL at 45 mg/( kg·d) in d 4, 6 and 8 after irradiation; the WBC, platelet and reticulocyte counts in peripheral blood, the smears and nucleated cells counts of bone marrow were observed.
RESULTS: The levels of peripheral blood 3-lineage cells of SD rats treated with 137Csγ-irradiation combined with cyclophosphamide and chloramphenicol were significantly reduced, among which white blood cells, platelets and reticulocytes decreased rapidly, and the number of bone marrow nucleated cells decreased significantly; bone marrow pathological sections showed severe reduction of hematopoietic cells, and the non-hematopoietic cells such as fat cells increased, and a serve or lightly reduction of bone marrow cells were found.
CONCLUSION: The rat model established by 137Csγ-ray irradiation combined with cyclophosphamide and chloramphenicol meets the clinical characteristics of aplastic anemia, and this study provides a stable rat model for the study of new therapeutic drugs for acquired aplastic anemia.
METHODS: The SD rats were exposed to 137Csγ-ray at 3.5 and 4.0 Gy ( 91 cGy/min), and intraperitoneally injected with CTX at 35 mg/( kg·d) and CHL at 45 mg/( kg·d) in d 4, 6 and 8 after irradiation; the WBC, platelet and reticulocyte counts in peripheral blood, the smears and nucleated cells counts of bone marrow were observed.
RESULTS: The levels of peripheral blood 3-lineage cells of SD rats treated with 137Csγ-irradiation combined with cyclophosphamide and chloramphenicol were significantly reduced, among which white blood cells, platelets and reticulocytes decreased rapidly, and the number of bone marrow nucleated cells decreased significantly; bone marrow pathological sections showed severe reduction of hematopoietic cells, and the non-hematopoietic cells such as fat cells increased, and a serve or lightly reduction of bone marrow cells were found.
CONCLUSION: The rat model established by 137Csγ-ray irradiation combined with cyclophosphamide and chloramphenicol meets the clinical characteristics of aplastic anemia, and this study provides a stable rat model for the study of new therapeutic drugs for acquired aplastic anemia.