Meta-analysis of Simotang Oral Liquid in treatment of functional dyspepsia in adults / 中国中药杂志

This study was conducted to evaluate the efficacy and safety of Simotang Oral Liquid in the treatment of functional dyspepsia in adults. "Simotang Oral Liquid" "Simotang" "Si Mo Tang" "Si Mo Tang Oral Liquid" were used for retrieval of the relevant papers from CNKI, Wanfang, VIP, SinoMed, PubMed, Cochrane Library, Springer Link, and Web of Science from database inception to June 2021. Randomized controlled trial(RCT) of Simotang Oral Liquid in the treatment of functional dyspepsia in adults was screened out for Meta-analysis which was conducted in RevMan 5.3. A total of 16 RCTs were included. Meta-analysis showed that compared with the control group, Simotang Oral Liquid increased the total response rate and lowered the traditional Chinese medicine syndrome scores, serum cholecystokinin(CCK), serum nitric oxide(NO), and incidence of adverse reactions. However, the serum substance P(SP) had no statistical difference between the two groups. Simotang Oral Liquid is effective and safe in the treatment of functional dyspepsia in adults. However, this study has evidence and limitations, so the conclusions need to be further verified by large sample and multicenter clinical studies.

Mechanism of Simotang oral liquid in improving functional dyspepsia model rats / 中国药房

OBJECTIVE To explore the improvement effect and mechanism of Simotang oral liquid on functional dyspepsia （FD） model rats by regulating PTEN-induced putative kinase 1 （Pink1）/E3 ubiquitin ligase （Parkin） axis. METHODS SD male rats were subjected to unpredictable chronic stress to establish an FD model， and were randomly grouped into the model group， positive control group （Domperidone tablets， 3.5 mg/kg）， Simo decoction group （Simotang oral liquid， 5.4 mL/kg）， with 20 rats in each group. The blank group without modeling was set up. Administration groups were given relevant medicine intragastrically， blank group and model group were given constant volume of normal saline intragastrically， once a day， for consecutive 14 d. After the last administration， the gastric emptying rate and small intestine propulsion rate of rats were detected. The contents of gastrointestinal hormones [motilin （MTL）， gastrin （GAS） and cholecystokinin （CCK）] in rats were determined； the mitochondrial structure of ICC in gastric antrum tissue of rats was observed； the immunofluorescence co-localization method was applied to observe the expression of cytochrome C oxidase Ⅳ （COX Ⅳ） and Parkin in gastric antrum tissue of rats； the protein expressions of LC3， p62， Pink1 and Parkin in gastric antrum tissue of rats were all detected. RESULTS Compared with the blank group， the gastric emptying rate， small intestinal propulsion rate， the serum contents of MTL and GAS， and protein expression of p62 in model group were all reduced significantly （P＜0.05）； the serum content of CCK， the co-localization expression of COX Ⅳ and Parkin in mitochondria， the protein expressions of LC3， Pink1 and Parkin were all increased significantly （P＜0.05）. The number of ICC mitochondria in gastric antrum tissue decreased， mitochondria became vacuolated， mitochondrial cristae were blurry， and there were more autophagic lysosomes. Compared with the model group， the above indexes of the positive control group and the Simo decoction group were reversed significantly （P＜0.05）； the mitochondrial structure of ICC gradually recovered， with clear mitochondrial cristae and reduced autophagic lysosomes. CONCLUSIONS Simotang oral liquid can improve gastrointestinal motility and gastrointestinal hormone levels in model rats， the mechanism of which may be related to inhibiting Pink1/Parkin axis and blocking autophagy.

Four Oral Chinese Patent Medicines for Treatment of Functional Dyspepsia： A Rapid Health Technology Assessment / 中国实验方剂学杂志

ObjectiveTo evaluate the safety， efficacy， and economy of the four Chinese patent medicines （CPMs）， including Simotang oral liquid， Liuwei Anxiao capsule， Baohe pill， and Jianwei Xiaoshi oral liquid in the treatment of functional dyspepsia （FD） by a rapid health technology assessment （RHTA）， thus providing evidence support for clinical decision making. MethodChina National Knowledge Infrastructure （CNKI）， WanFang Database， VIP Chinese Technology Periodical Database （VIP）， China Biology Medicine disc （CBMdisc）， PubMed， EMBASE， Cochrane Library， and Web of Science were searched by computer from inception to March 2022. After literature screening， data extraction， and quality evaluation， the descriptive analysis of the results combined with visual charts was performed. Nineteen studies were included， involving 18 randomized controlled trials （RCTs） and 1 Meta-analysis. Neither economic studies nor health technology assessment （HTA） reports were retrieved. ResultThe four CPMs were safe and effective in the treatment of FD， but economic research was lacking. Among them， Simotang oral liquid could be used for children with FD and FD caused by qi and food stagnation， liver and spleen disharmony， and liver and spleen stagnation. Liuwei Anxiao capsule could be used for adult patients with FD caused by food stagnation. Baohe pill could be used for the elderly with FD. Jianwei Xiaoshi oral liquid could be used for children with FD caused by spleen and stomach weakness. ConclusionThe four CPMs have their advantages in the treatment of FD. Among them， the clinical universality of Simotang oral liquid is higher. However， the quality of clinical evidence is generally low， and comparative analysis among drug dosage forms is lacking. In the future， it is necessary to improve， apply， and promote RHTA for rapid evidence production while carrying out a more standardized and scientific evidence-based demonstration of the comprehensive clinical efficacy of CPMs.

Simultaneous determination of five constituents in Simotang Oral Liquid by HPLC / 中成药

AIM To establish an HPLC method for the simultaneous content determination of five constituents in Simotang Oral Liquid (Aucklandiae Radix,Aurantii Fructus,Arecae Semen,etc.).METHODS The analysis of 50％ methanol extract of this drug was performed on a 35 ℃ thermostatic Agilent Zorbax C18 column (4.6 mm × 250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1％ formic acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 283 nm.RESULTS Synephrine,norisoboldine,naringin,hesperidin and neohesperidin showed good linear relationships within the ranges of 5.8-185.6 μg/mL (r =0.999 9),0.829-26.52 μg/mL (r =1.000 0),9.775-312.8 μg/mL (r =1.000 0),0.594-19 μg/mL (r =0.999 5) and 5.2-166.4 μg/mL (r =1.000 0),whose average recoveries were 98.93％,98.95％,102.57％,99.67％ and 103.43％ with the RSDs of 1.85％,1.27％,0.52％,0.89％ and 0.43％,respectively.CONCLUSION This simple,accurate and reproducible method can be used for the rapid quality control of Simotang Oral Liquid.

Clinical Research of Simotang Oral Liquid and Compound Glutamine Enteric Capsules for Treating Diarrhea-predominant Irritable Bowel Syndrome / 中国中医药信息杂志

Objective To observe the clinical efficacy of Simotang oral liquid combined with compound glutamine enteric capsules in the treatment of diarrhea-predominant irritable bowel syndrome (IBS-D) belonging to liver depression and spleen deficiency pattern, and to explore its possible mechanism. Methods Sixty patients were randomly divided into two groups. The treatment goup (30 cases) took Simotang oral liquid and compound glutamine enteric capsules, the control group took Cerekinon and Medilac-S. The treatment course was 4 weeks. Clinical symptoms, 5-hydroxytryptamine (5-HT) and substance P (SP) of both groups were evaluated respectively before and after treatment. Recurrence rate and adverse reactions were recorded. Results The total effective rate after treating 1, 2, 4 weeks between the two groups had no significant difference (P>0.05). Four weeks later, in the treatment group, total score of the symptoms, abdominal distension and defecation urgency were apparently lower than that of control group (P0.05). Obvious side effects were not found in the two groups. Conclusion Simotang oral liquid combined with compound glutamine enteric capsules has evident therapeutic effect on IBS-D of liver depression and spleen deficiency pattern, especially good at releasing abdominal distension and defecation urgency. The mechanism may be related with decreasing the levels of 5-HT and SP.