Objective:To evaluate the matrix toxicity, embryo-fetal development toxicity and teratogenicity of Ningmitai capsules with oral administration in pregnant mice. Methods:After successful mating, the female mice were given Ningmitai capsules respec-tively at the dose of 5. 2, 10. 4 and 20. 7 g·kg-1 ·d-1 from the 6th to 15th day with gavage administration, and those in the control group were given saline. The body weight was recorded during the whole study. On the 18th day, the pregnant mice were dissected, and the number of corpora lutea, live fetus, dead fetus and absorptive fetus was recorded, respectively, and the appearance, body weight, skeleton and internal organs were observed. Results:No notable abnormality showed in the above indices in the pregnant mice and the embryo and fetus, and there were no statistically significant differences between Ningmitai capsules group and the control group. Con-clusion:Under the experimental conditions, Ningmitai capsules show no obvious toxicity on matrix, embryo and fetus of mice.

Objective:To investigate the application value of early and late interventional embolization in intracranial aneurysms.Methods:Eighty-two patients with intracranial aneurysm who received treatment in Wenzhou People's Hospital from October 2015 to February 2020 were included in this study. These patients were divided into early (≤ 3 days) and late (> 3 days) groups, with 41 patients in each group, according to time from disease onset to surgery. The early group was subjected to early interventional embolization, and the late group was treated with late interventional embolization. The effects of embolization and National Institutes of Health Stroke Scale score pre- and post-treatment, as well as modified Barthel index, Mini-Mental State Exam score, matrix metalloproteinase-9 level, and soluble intercellular adhesion molecule-1 level post-treatment and prognosis were compared between the two groups.Results:The embolization effects in the early group were statistically superior to those in the late group ( P = 0.046). After treatment, National Institutes of Health Stroke Scale score in the early group was significantly lower than that in the late group [(4.02 ± 1.64) points vs. (6.81 ± 2.02) points, t = 6.86, P < 0.01]. Mini-Mental State Exam score and modified Barthel index in the early group were (28.09 ± 1.35) points and (81.12 ± 9.67) points, respectively, which were significantly higher than (26.01 ± 1.19) points and (73.02 ± 8.19) points in the late group ( t = 7.40, 4.09, both P < 0.001). After treatment, matrix metalloproteinase-9 and soluble intercellular adhesion molecule-1 levels in the early group were (420.33 ± 29.40) μg/L and (403.70 ± 23.28) ug/L, respectively, which were significantly lower than (491.30 ± 31.19) μg/mL and (496.37 ± 30.46) μg/L in the late group ( t = 10.60, 15.47, both P < 0.001). Prognosis in the early group was superior to that in the late group ( P = 0.049). Conclusion:Early interventional embolization has better efficacy than late interventional embolization in the treatment of intracranial aneurysm. The former can effectively improve neurological function and mental state, enhance living ability, and improve prognosis, which may be related to the regulation of matrix metalloproteinase-9 and soluble intercellular adhesion molecule-1 levels.