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第42卷第12期        金多晨,黄可婷,徐 妙,等. 基于16S rDNA扩增子测序探究脱氧胆酸对肠型胃癌模型INS⁃GAS
                 2022年12月         小鼠胃内菌群结构的影响[J]. 南京医科大学学报(自然科学版),2022,42(12):1651-1657 ·1657                ·


                内菌群测定     [19] 。因此,本研究测定的小鼠胃内容物                        crobes,2020,11(4):820-841
                中菌群成分,可以视为类似于人胃液内菌群结构测                           [9] PINZON⁃GUZMAN C,MEYER A R,WISE R,et al. Eval⁃
                定。本研究在实验分组上存在一些不完善之处,在                                 uation of lineage changes in the gastric mucosa following
                不考虑小鼠数量限制的前提下设置4个分组更为严                                 infection with helicobacter pylori and specified intestinal
                                                                       flora in INS⁃GAS mice[J]. J Histochem Cytochem,2019,
                谨,即 FVB/N(NS)、FVB/N(DCA)、INS⁃GAS(NS)和
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                INS⁃GAS(DCA)4个干预组。另外,仅采用DCA饮水
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                干预3个月,后续应进一步延长干预时间至INS⁃GAS
                                                                       and inflammation activate gastric cardia stem cells in a
                小鼠成瘤,明确小鼠胃癌发生时胃内菌群变化。                                  mouse model of barrett⁃like metaplasia[J]. Cancer Cell,
                    综上所述,次级胆汁酸虽是除 Hp 外的另一重                             2012,21(1):36-51
                要致胃癌因子,但本研究发现DCA饮水干预尚存在                          [11] YUAN T,NI Z,HAN C,et al. SOX2 interferes with the
                对胃内菌群潜在的有益调节,如蓝藻细菌属丰度增                                 function of CDX2 in bile acid⁃induced gastric intestinal
                加,促癌乳杆菌属丰度降低。毛螺菌科 Anaerostipes                         metaplasia[J]. Cancer Cell Int,2019,19:24
                菌属虽是肠道产丁酸菌属,但在胃内作用尚不清                            [12] RIVIÈRE A,SELAK M,LANTIN D,et al. Bifidobacteria
                楚,既往文献尚未见报道在胃癌发生发展中丰度改                                 and butyrate ⁃ producing colon bacteria:importance and
                变的情况。本研究发现 DCA 干预后 Anaerostipes 菌                      strategies for their stimulation in the human gut[J]. Front
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                属丰度显著上升,此种变化仍需后续深入探究。
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