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润燥止痒胶囊对湿疹大鼠肠道菌群及短链脂肪酸的影响
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          胡银霞 ,陈梓钊 ,刘昌顺 ,郝 勇(1.中国人民解放军南部战区总医院消化内科,广州 510010;2.广东药科
                 1*
                           2
                                            1
          大学临床医学院,广州 510006;3.南方医科大学中医药学院,广州 510515)
          中图分类号  R965;R285      文献标志码  A      文章编号  1001-0408(2024)19-2372-06
          DOI  10.6039/j.issn.1001-0408.2024.19.09

          摘   要  目的  研究润燥止痒胶囊(RZZY)对湿疹大鼠肠道菌群及其代谢物短链脂肪酸(SCFA)的影响,以揭示RZZY对湿疹的改
          善作用及可能机制。方法  将大鼠分为正常组、模型组、地氯雷他定组(1.5 mg/kg)和RZZY低、高剂量组(0.6、1.2 g/kg)。除正常组
          外,其余各组大鼠采用2,4-二硝基氯苯溶液涂抹脱毛区域致敏以构建湿疹模型,并灌胃相应药物,每天1次,连续2周。给药完成
          后,检测大鼠皮肤厚度,并进行湿疹面积及严重度指数(EASI)评分和病理评分;基于16S rDNA测序分析大鼠肠道菌群结构;采用
          气相色谱-质谱联用仪检测大鼠粪便中 SCFA(乙酸、丙酸和丁酸)含量;检测大鼠结肠和皮肤组织中信号转导及转录激活因子 3
         (STAT3)的表达水平。结果  RZZY可明显减轻湿疹大鼠皮肤红肿、溃烂症状,显著减小/降低大鼠EASI、皮肤厚度、病理评分(P<
          0.05);显著升高湿疹大鼠肠道菌群ACE、Sobs和Shannon指数(P<0.05),促进大鼠肠道菌群向正常结构回调;提高湿疹大鼠肠道
          厚壁菌门和毛螺菌属、乳杆菌属、另枝菌属丰度,降低拟杆菌门/属丰度;显著升高湿疹大鼠粪便中丙酸、丁酸含量(P<0.05);显著
          下调结肠和皮肤组织中STAT3蛋白表达(P<0.05)。结论  RZZY可通过调节肠道菌群提高SCFA水平来抑制STAT3表达,从而发
          挥抗炎作用,进而改善湿疹大鼠的皮肤炎症。
          关键词  润燥止痒胶囊;湿疹;肠道菌群;短链脂肪酸

          Effect of Runzao zhiyang capsule on gut microbiota and short-chain fatty acids in eczema rats
                                                 3
                    1
                                  2
          HU Yinxia ,CHEN Zizhao ,LIU Changshun ,HAO Yong(1.  Dept.  of  Gastroenterology,  PLA  General  Hospital
                                                             1
          of  Southern  Theater  Command,  Guangzhou  510010,  China;2.  Clinical  Medical  College  of  Guangdong
          Pharmaceutical  University,  Guangzhou  510006,  China;3.  School  of  Traditional  Chinese  Medicine,  Southern
          Medical University, Guangzhou 510515, China)

          ABSTRACT    OBJECTIVE  To  study  the  effect  of  Runzao  zhiyang  capsule (RZZY)  on  gut  microbiota  and  its  metabolites  short-
          chain  fatty  acids (SCFA)  in  eczema  rats,  in  order  to  reveal  the  improvement  effect  and  possible  mechanism  of  RZZY  on  eczema.
          METHODS  The  rats  were  divided  into  normal  group,  model  group,  desloratadine  group (1.5  mg/kg),  and  RZZY  low-dose  and
          high-dose groups (0.6, 1.2 g/kg). Except for the normal group, the eczema model was established in other groups by applying the
          2,4-dinitrochlorobenzene  solution  to  the  hair  removal  area  to  sensitize  it;  they  were  given  relevant  drugs  intragastrically,  once  a
          day,  for  consecutive  2  weeks. After  medication,  the  skin  thickness  of  rats  was  measured,  and  the  eczema  area  and  severity  index
         (EASI) scoring and pathology scoring were performed; the structure of gut microbiota was analyzed by 16S rDNA sequencing. The
          contents  of  SCFA (including  acetic  acid,  propionic  acid,  and  butyric  acid)  in  feces  were  determined  by  gas  phase-mass
          spectrometry. The expressions of signal transduction and activator  of  transcription  3 (STAT3) in the colon and skin were detected.
          RESULTS  RZZY  significantly  alleviated  skin  swelling  and  ulceration  and  reduced  EASI,  skin  thickness  and  pathological  score  in
          eczema rats (P<0.05). RZZY significantly increased ACE, Sobs and Shannon indexes (P<0.05) and promoted the microbiota of
          eczema  rats  to  return  to  normal  structure.  RZZY  increased  the  abundance  of  Firmicutes  and  Lachnospira,  Lactobacillus  and
          Alistipes, while decreased the abundance of Bacteroidetes and Bacteroides. RZZY significantly increased the contents of propionic
                                                              acid  and  butyric  acid  in  the  feces  of  eczema  rats (P<0.05),
              Δ  基金项目 广 东 省 基 础 与 应 用 基 础 研 究 基 金 项 目(No.
          2019A1515110600)                                    while  significantly  down-regulated  the  expressions  of  STAT3
             *第一作者 主治医师,硕士。研究方向:中药对肠道微生态的影                    protein  in  the  colon  and  skin (P<0.05).  CONCLUSIONS
          响。E-mail:15017560826@163.com
                                                              RZZY  can  improve  SCFA  levels  by  regulating  gut  microbiota,
              # 通信作者 讲师,博士。研究方向:复方中药作用机制。E-mail:
          lcshun1225@163.com                                  thereby  inhibiting  STAT3  expression,  playing  an  anti-


          · 2372 ·    China Pharmacy  2024 Vol. 35  No. 19                            中国药房  2024年第35卷第19期
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