中国中西医结合儿科学 ›› 2021, Vol. 13 ›› Issue (5): 375-380.
目的
观察10%理脾复方制剂和硫酸锌含药血清对结肠平滑肌细胞(CSMCs)增殖及其脑肠肽的调控作用,探索两者药物治疗厌食的作用机制。
方法:60只幼龄大鼠中取10只培养大鼠CSMCs,余50只大鼠随机分为对照组,低、中、高剂量理脾复方制剂组,硫酸锌组,每组10只。对照组灌胃给予等体积饮用水;硫酸锌组灌胃给予20 mg/kg硫酸锌口服溶液;低、中、高剂量理脾复方制剂组分别灌胃给予2.4、4.8、9.8 g/kg理脾复方制剂,各组每日灌胃1次,连续7 d,末次灌胃2 h后采血制备含药血清。将各组含药血清稀释至10%后作用于大鼠CSMCs 9个时间点,采用八肽胆囊收缩素(CCK8)检测各含药血清组对CSMCs增殖影响;采用酶联免疫吸附法、蛋白质印迹法、实时聚合酶链反应法检测各含药血清组干预大鼠CSMCs最佳增殖起始点时细胞中瘦素(LP)、神经肽Y(NPY)、CCK-8蛋白浓度、蛋白相对表达量、基因相对表达量。
结果:10%不同剂量理脾复方制剂及硫酸锌含药血清均能促进大鼠CSMCs增殖,最佳增殖起始时间为24 h。各含药血清组与对照组比较,各含药血清组均能增加大鼠CSMCs中LP、NPY蛋白浓度、蛋白相对表达量、基因相对表达量(P<005),降低CCK8蛋白浓度、蛋白相对表达量(P<0.05)。
结论:理脾复方制剂和硫酸锌可促进CSMCs增殖,影响CSMC中的LP、NPY、CCK-8表达,可能是其治疗厌食的重要作用机制之一。
Objective#br# To observe the effect of 10% LiPi Compound Preparation and zinc sulfate drugcontaining serum on the proliferation of colonic smooth muscle cells(CSMCs) and their regulation effect on brain-gut peptide, and to explore the mechanism of the two drugs in the treatment of anorexia.#br# Methods#br# Among the 60 young rats, the CSMCs of 10 rats were cultured, and the remaining 50 rats were randomly divided into five groups: the control group, the low,medium and high-dose Li-Pi Compound Preparation group and the zinc sulfate group, with 10 rats in each group. The control group was given equal volume of drinking water by gavage. The zinc sulfate group was given 20 mg/kg zinc sulfate oral solution by gavage. The low,medium and high-dose groups were given by gavage 2.4, 4.8 and 9.8 g/kg Li-Pi CompoundPreparations respectively. Each group was given gavage once a day for 7 consecutive days, and blood samples were collected to prepare drug-containing serum at 2h after the last gavage.The drug-containing serum of each group was diluted to 10% and was given to rat CSMCs at 9 time points. The effect of drug-containing serum in each group on the proliferation of colonic smooth muscle cells was detected by CCK-8;Western Bolt, ELISA and RT-PCR were used to detect the relative expression levels of LP,NPY and CCK8 protein concentration in the cells at the optimal starting point of CSMCs proliferation.#br# 〖WT5”HZ〗Results〓#br# The 10% differentdosedrugcontaining serum of LiPi Compound Preparations and zinc sulfate could promote the proliferation of CSMCs in rats, and the optimal starting time of proliferation was 24h.Compared with the control group, each drugcontaining serum group could increase the concentration of LP and NPY protein in rat CSMCs and the relative expression level of protein and gene(P<0.05),reduce the concentration and the relative expressionlevel of CCK8 protein(P<0.05).#br# 〖WT5”HZ〗Conclusion〓#br# LiPi Compound Preparation and zinc sulfate can promote the proliferation of CSMCs,and affect the expression of LP,NPY and CCK8 in CSMCs, which may be one of the important mechanisms in the treatment of anorexia.#br#
摘要: 目的:观察10%理脾复方制剂和硫酸锌含药血清对结肠平滑肌细胞(CSMCs)增殖及其脑肠肽的调控作用,探索两者药物治疗厌食的作用机制。
方法:60只幼龄大鼠中取10只培养大鼠CSMCs,余50只大鼠随机分为对照组,低、中、高剂量理脾复方制剂组,硫酸锌组,每组10只。对照组灌胃给予等体积饮用水;硫酸锌组灌胃给予20 mg/kg硫酸锌口服溶液;低、中、高剂量理脾复方制剂组分别灌胃给予2.4、4.8、9.8 g/kg理脾复方制剂,各组每日灌胃1次,连续7 d,末次灌胃2 h后采血制备含药血清。将各组含药血清稀释至10%后作用于大鼠CSMCs 9个时间点,采用八肽胆囊收缩素(CCK-8)检测各含药血清组对CSMCs增殖影响;采用酶联免疫吸附法、蛋白质印迹法、实时聚合酶链反应法检测各含药血清组干预大鼠CSMCs最佳增殖起始点时细胞中瘦素(LP)、神经肽Y(NPY)、CCK8蛋白浓度、蛋白相对表达量、基因相对表达量。
结果:10%不同剂量理脾复方制剂及硫酸锌含药血清均能促进大鼠CSMCs增殖,最佳增殖起始时间为24 h。各含药血清组与对照组比较,各含药血清组均能增加大鼠CSMCs中LP、NPY蛋白浓度、蛋白相对表达量、基因相对表达量(P<0.05),降低CCK8蛋白浓度、蛋白相对表达量(P<0.05)。
结论:理脾复方制剂和硫酸锌可促进CSMCs增殖,影响CSMC中的LP、NPY、CCK8表达,可能是其治疗厌食的重要作用机制之一。