目的 研究过表达miR-29a-3p对IL-22诱导的HaCaT细胞增殖的影响。方法 将HaCaT细胞分为Cell组、IL-22组、IL-22+NC组和IL-22+ miR-29a-3p组,荧光定量PCR检测miR-29a-3p的表达水平,CCK8检测细胞的活力,流式细胞仪检测细胞凋亡及周期。结果 与0 μg/L组相比,25 μg/L组、50 μg/L组和100 μg/L组HaCaT细胞的增殖率在24 h、48 h和72 h均出现升高(F值分别为33.27、36.19、52.29,均P<0.000 1)。与0 μg/L组相比,miR-29a-3p在50 μg/L组和100 μg/L组HaCaT中的表达水平降低(F=129,P<0.000 1),分别降低83%和80%。与IL-22+NC组相比,IL-22+ miR-29a-3p组的增殖率在24 h、48 h和72 h均降低(P值分别为0.002 1、0.001 6、0.023 1),细胞总凋亡率增加(6.67±1.06 vs 30.55±1.86,P=0.000 1),G1期细胞比例增加(P=0.000 1),S期细胞比例降低(P=0.000 1)。结论 IL-22可降低HaCaT中miR-29a-3p的表达量,过表达miR-29a-3p通过促进凋亡和引起细胞G1期阻滞抑制IL-22诱发的HaCaT细胞过度增生。

Objective To investigate the effect of miR-29a-3p overexpression on IL-22-induced proliferation of HaCaT cells. Methods HaCaT cells were divided into four groups, Cell group, IL-22 group, IL-22 +NC group and IL-22+miR-29a-3p group. The expression level of miR-29a-3p was detected by fluorescence quantitative PCR. Cell viability was detected by CCK8. Apoptosis and cell cycle were detected by flow cytometry. Results Compared with the 0 g/L group, the proliferation rate of HaCaT cells in the 25 μg/L group, 50 μg/L group and 100 μg/L group was increased at 24 h, 48 h and 72 h (F value was 33.27, 36.19, 52.29,respectively, all P<0.000 1). Compared with the 0 μg/L group, miR-29a-3p expression level in HaCaT in 50 μg/L and 100 μg/L groups was decreased (F=129, P<0.000 1), with a decrease of 83% and 80%, respectively. Compared with the IL-22+NC group, proliferation rate of IL-22+miR-29a-3p group was decreased at 24 h, 48 h and 72 h (P value was 0.002 1, 0.001 6, 0.023 1, respectively), total apoptosis rate was increased (6.67±1.06 vs 30.55±1.86, P=0.000 1), cell proportion in G1 phase was increased (P=0.000 1), and the cell proportion in S phase was decreased (P=0.000 1). Conclusion Il-22 can reduce miR-29a-3p expression level in HaCaT, and miR-29a-3p overexpression can inhibit the excessive proliferation induced by IL-22 in HaCaT cells by promoting apoptosis and inducing G1 phase arrest.

目的 观察隔药壮灸神阙穴治疗女性黄褐斑的临床疗效及对血清性激素水平的影响。方法 将72例患者随机分为2组,治疗组38例和对照组34例,治疗组予隔药壮灸神阙穴治疗,对照组予口服维生素C、维生素E治疗,10次为1个疗程,第2、4、6疗程末观察疗效,治疗前后测定月经第2～3天血清雌二醇(E2)、孕酮(P)、泌乳素(PRL)、卵泡刺激素(FSH)、黄体生成素(LH)、睾酮(T)水平。结果 第6疗程末治疗组总有效率为83.33％,对照组总有效率30.30%,治疗组疗效优于对照组(P＜0.05),治疗组治疗前后E2、LH下降水平有统计学意义(P＜0.05)。对照组治疗前后E2、P、PRL、FSH、LH、T水平变化不明显(P＞0.05)。治疗后2组E2、LH比较,差异有统计学意义(P＜0.05)。结论 隔药壮灸神阙穴治疗女性黄褐斑临床疗效较好,可能通过调节性激素而起到治疗作用。

Objective To observe the clinical efficacy on female chloasma treated with acupuncture of Zhuang minority medicine at Shengque xue and its influence on sex hormone levels. Methods 72 cases were divided randomly into a treatment group(38 cases) and a control group(34 cases). In treatment group, acupuncture of Zhuang minority medicine at Shengque xue was applied. In control group, oral administration of vitamin C and vitamin E were given. The cases of treatment group were treated ten times as one session. At the end of 2,4,6 treatment session efficacy were analyzed respectively. The levels of serum estradiol(E2), progesterone(P), prolactin(PRL), follicule stimulating hormone(FSH), luteinizing hormone(LH) and testosterone(T) were detected on day 2-3 of menstruation. Results At the end of 6 treatment session the total effective rate was 83.33％ in treatment group and was 30.30% in control group, the efficacy in treatment group were superior to that in control group, with significant difference(P＜0.05). In treatment group, the levels of LH and E2 after treatment were lower as compared with those before treatment(P＜0.05). In control group, there were no obvious changes in E2,P, PRL, FSH, LH and T before and after treatment(P＞0.05). The levels of LH and E2 after treatment were significantly different in comparison of two groups(P＜0.05). Conclusion Acupuncture of Zhuang minority medicine at Shengque xue achieves a definite efficacy on female chloasma in clinic and its pharmacological mechanism may be relevant with its regulation on sex hormone levels for the patients.