转氨酶水平轻微升高可能反映了甲氨蝶呤对肝脏的早期毒性作用，尽管也可能是全身感染引起的非特异性反应。
The slightly elevated levels of aminotransferases may reflect an early toxic effect of methotrexate on the liver, although a nonspecific response to a systemic infection is also possible.
采用腹腔注射试验观察其全身急性毒性作用。
To investigate it's systemic acute toxicity by peritoneal injection.
制备领下腺脱细胞基质支架材料的浸提液，通过急性全身毒性试验，分析脱细胞后的生物衍生支架材料对机体的毒性作用。
The extracting liquid of submandibular gland acellular matrix scaffold material was made, and its toxicity effect to the body was analyzed by acute systemic toxicity test.
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