Page 47 - 《中国药房》2025年13期
P. 47

两种益生菌与枳实联用对功能性消化不良大鼠的改善作用及机制
                                                                                                         Δ


                                                                     #
          李宗年 ,熊 英,龚晓惠,王兰兰,郭忠青,蒋林林,刘红樱,邓可众(江西中医药大学药学院,南昌 330004)
                *
          中图分类号  R965;R285      文献标志码  A      文章编号  1001-0408(2025)13-1593-06
          DOI  10.6039/j.issn.1001-0408.2025.13.07

          摘  要  目的  探讨两种益生菌(枯草芽孢杆菌、嗜酸乳杆菌)联合中药枳实改善大鼠功能性消化不良(FD)的作用及机制。方法
          将大鼠随机分为空白组、模型组、阳性对照组(多潘立酮,2.7 mg/kg)、枳实组(9 g/kg)、嗜酸乳杆菌组(5×10  cfu/kg)、枯草芽孢杆菌
                                                                                           7
          组(5×10  cfu/kg)、嗜酸乳杆菌+枳实组(嗜酸乳杆菌 5×10  cfu/kg+枳实 9 g/kg)、枯草芽孢杆菌+枳实组(枯草芽孢杆菌 5×10                    7
                 7
                                                        7
          cfu/kg+枳实9 g/kg),每组8只。除空白组外,其余各组大鼠采用夹尾刺激+饥饱失常+游泳力竭应激干预法建立FD模型;成模后,
          各组大鼠灌胃相应药物/益生菌混悬液/生理盐水,每天1次,持续14 d。末次给药后,检测大鼠胃排空率和小肠推进率;检测大鼠
          血清中脑肠肽相关指标[胃泌素(GAS)、P物质(SP)、血管活性肠肽(VIP)、生长抑素(SS)、胆囊收缩素(CCK)]水平;观察胃窦组织
          和十二指肠组织的病理学形态;收集大鼠盲肠内容物进行肠道菌群测序分析;检测大鼠胃窦组织中酪氨酸激酶受体c-Kit、干细胞
          因子(SCF)和十二指肠组织中Toll样受体4(TLR4)、髓样分化因子88(MyD88)、核因子κB(NF-κB)的蛋白表达水平。结果  与空
          白组比较,模型组大鼠胃排空率、小肠推进率,血清中GAS、SP水平,厚壁菌门(Firmicutes)相对丰度,肠道菌群的Ace、Chao、Sobs
          指数,胃窦组织中SCF、c-Kit蛋白表达水平均显著降低(P<0.05);血清中VIP、SS、CCK水平,拟杆菌门(Bacteroidetes)相对丰度,
          十二指肠组织中TLR4、MyD88、NF-κB蛋白表达水平均显著升高(P<0.05);胃窦组织结构基本正常,但十二指肠组织结构存在异
          常,可见大量炎症细胞浸润。与模型组比较,各给药组大鼠上述指标水平大部分显著逆转(P<0.05),胃窦组织结构正常;除枯草
          芽孢杆菌组、枯草芽孢杆菌+枳实组外,其余大鼠十二指肠病理状态均逐渐恢复。与各单药组相比,各联合组大鼠上述大部分指标
          进一步改善(P<0.05)。结论  枳实与上述两种益生菌联用均可改善FD大鼠的胃肠动力,且效果优于单独用药,具体作用机制可
          能与激活SCF/c-Kit信号通路、抑制TLR4/MyD88/NF-κB信号通路有关。
          关键词  功能性消化不良;枳实;枯草芽孢杆菌;嗜酸乳杆菌;肠道菌群;SCF/c-Kit信号通路;TLR4/MyD88/NF-κB信号通路

          Ameliorative  effects  and  mechanisms  of  two  probiotics  combined  with  Aurantii  Fructus  Immaturus  on
          functional dyspepsia in rats
          LI Zongnian,XIONG Ying,GONG Xiaohui,WANG Lanlan,GUO Zhongqing,JIANG Linlin,LIU Hongying,
          DENG Kezhong(School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330004, China)

          ABSTRACT   OBJECTIVE To investigate ameliorative effects and mechanisms of two probiotics (Bacillus subtilis, Lactobacillus
          acidophilus)  combined  with  Aurantii  Fructus  Immaturus (AFI)  on  functional  dyspepsia (FD)  in  rats.  METHODS  Rats  were
          randomly divided into blank group, model group, positive control group (domperidone group, 2.7 mg/kg), AFI  group (9 g/kg),
          L. acidophilus group (5×10  cfu/kg), B. subtilis group (5×10  cfu/kg), L. acidophilus+ AFI group (L. acidophilus 5×10  cfu/kg+
                               7
                                                                                                      7
                                                         7
          AFI  9  g/kg),  and  B.  subtilis+AFI  group (B.  subtilis  5×10   cfu/kg+AFI  9  g/kg),  with  8  rats  in  each  group.  Except  for  the  blank
                                                       7
          group,  FD  model  was  established  by  tail-clamping  stimulation+hunger  and  satiety  disorder+swimming  exhaustion  in  other  groups.
          After  modeling,  each  group  was  given  the  corresponding  drug/probiotic  suspensions/physiological  saline  intragastrically,  once  a
          day,  for  14  consecutive  days. After  the  last  medication,  gastric  emptying  rate  and  the  rate  of  propulsion  of  the  small  intestine  in
          rats  were  measured;  the  levels  of  brain-gut  peptide-related  indicators  [gastrin (GAS),  substance  P (SP),  vasoactive  intestinal
          peptide (VIP),  somatostatin (SS)  and  cholecystokinin (CCK)]  in  the  serum  of  rats  were  measured. The  pathological  morphology
          of  the  gastric  antrum  tissue  and  duodenal  tissue  was  observed.  Cecal  contents  from  the  rats  were  collected  for  gut  microbiota
          sequencing analysis. The protein expression levels of tyrosine kinase receptor c-Kit and stem cell factor (SCF) in the gastric antrum
          tissue, as well as Toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), and nuclear factor κB (NF-κB) in the
          duodenal  tissue  of  the  rats  were  detected.  RESULTS  Compared  with  the  blank  group,  model  group  showed  significantly  lower
          gastric emptying rate, small intestinal propulsion rate, serum levels of GAS and SP, relative abundance of Firmicutes, Ace, Chao
          and  Sobs  indexes  of  the  gut  microbiota,  and  protein  levels  of  SCF  and  c-Kit  in  gastric  antrum (P<0.05),  while  serum  levels  of
                                                             VIP,  SS  and  CCK,  relative  abundance  of  Bacteroidetes,  as
             Δ  基金项目 国 家 自 然 科 学 基 金 项 目(No. 82460766,No.    well  as  protein  expressions  of  TLR4,  MyD88,  and  NF- κB,
          81960709);江西中医药大学校级研究生创新专项资金项目(No.                 were  significantly  higher (P<0.05).  The  histological  structure
          JZYC23S53)                                         of  the  gastric  antrum  tissue  appeared  basically  normal;
             *第一作者 硕士研究生。研究方向:中药质量评价。E-mail:                 however,  abnormalities  were  observed  in  the  duodenal
          1043380247@qq.com                                  structure,  with  a  significant  infiltration  of  inflammatory  cells
             # 通信作者 教授,硕士生导师,博士。研究方向:中药品质评价。                 visible.  Compared  with  the  model  group,  all  treatment  groups
          E-mail:dengkezhong@126.com                         significantly  modulated  most  of  the  above  indexes (P<0.05).


          中国药房  2025年第36卷第13期                                              China Pharmacy  2025 Vol. 36  No. 13    · 1593 ·
   42   43   44   45   46   47   48   49   50   51   52