模拟CO2气腹对小鼠胃癌腹腔巨噬细胞功能的影响

目的探讨模拟不同压力CO2气腹环境下小鼠胃癌腹腔巨噬细胞功能变化以及对胃癌腹腔种植转移的影响。方法建立小鼠前胃癌615小鼠原位种植模型,将其随机分为5组,每组30只:单纯麻醉组、开腹组以及2、4和6 mm Hg(1 mm Hg=0.133 kPa)CO2气腹组。术后每组各取6只小鼠收集培养腹膜巨噬细胞,培养12、24、48和72 h,检测巨噬细胞吞噬功能及NO和TNF-α水平。其余小鼠术后2周时观察小鼠前胃癌细胞腹腔种植转移率及种植结节的总重量。结果各组小鼠术后均无死亡,无腹水产生,各组小鼠平均体重的差异无统计学意义(P>0.05)。在培养12 h时,开腹组小鼠术后腹腔巨噬细胞吞噬中性红值、NO和TNF-α水平均明显高于其他4组(P<0.05),而单纯麻醉组小鼠又明显高于2、4和6 mm Hg CO2气腹组(P<0.05);2 mm Hg CO2气腹组明显高于4和6 mm Hg CO2气腹组(P<0.05),而4 mm Hg和6 mm Hg CO2气腹组间比较差异无统计学意义(P>0.05)。在培养24 h时,6 mm Hg CO2气腹组小鼠术后腹腔巨噬细胞吞噬中性红值、NO和TNF-α水平均明显低于其他4组...

Effects of Simulative CO2 Pneumoperitoneum on Peritoneal Macrophages Function in Rats with Gastric Cancer

Objective To investigate the changes of peritoneal macrophages function of mice with gastric cancer in the CO2 pneumoperitoneum environment,as well as its effect on the peritoneal metastasis of gastric cancer.Methods An orthotopic implantation model of mouse forestomach cancer was established using the 615 mouse.The mice bearing tumors were randomly divided into five groups(n=30): anesthesia alone,laparotomy,and 2,4,and 6 mm Hg CO2 insufflation groups.Peritoneal macrophages were collected from six mice in e...