1.Quantitative analysis of 10 components in Compound Dihuang oral solution by UPLC-MS/MS
Hongxia LIU ; Yanwen SUN ; Fei HAN ; Yan ZHOU ; Huajun SUN ; Liqin DING
Journal of Pharmaceutical Practice and Service 2025;43(8):390-394
Objective To develop an ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method to simultaneously determine 10 main components, including berberine, phellodendrine, specnuezhenide, mangiferin, loganin, paeoniflorin, geniposide, baicalin, and acteoside in Compound Dihuang oral solution. Methods An UPLC-MS/MS method was established with an ACQUITY UPLC BEH-C18 (2.1 mm×100 mm, 1.7 μm)column and mobile phase of 0.1% formic water(A)-methanol solution(B) in a gradient elution manner. The flow rate of mobile phase was 0.2 ml/min.The temperature of column was 30℃. The injection volume was 2 μl. The MS detection was in MRM mode. Results 10 components in Compound Dihuang oral solution had a good linear relationship within their concentration range,and the precision, repeatability, stability and recovery met the requirements. The contents of berberine, phellodendrine, specnuezhenide, mangiferin, loganin, paeoniflorin, geniposide, baicalin, and acteoside in 7 batches of samples were (89.7-95.6) μg/ml, (164.0-177.7) μg/ml, (540.0-610.0) μg/ml, (408.7-429.0) μg/ml, (726.0-825.0) μg/ml, (503.7-572.0) μg/ml, (
2.Exploring Common Principles and Characteristic Differences in Stir-frying Through Varied Processing Techniques
Hong LIU ; Lingyun ZHONG ; Yanwen DENG ; Xingmei LU ; Shuo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(22):282-290
As the core technology of processing, the stir-frying method of traditional Chinese medicine(TCM) realizes the regulation of efficacy of medicinal substances through the coordination of fire gradient and excipients. This study aims to systematically analyze the influence of different stir-frying degrees(stir-frying until yellow, stir-frying to brown, stir-frying to charcoal) and excipient types(solid excipients such as rice, wheat bran, soil, liquid excipients such as rice wine, vinegar, honey) on the physicochemical properties, efficacy and toxicity of TCM, summarizing their common regulatory mechanisms and characteristics. Then, the three-dimensional regulatory common mechanisms and five-dimensional regulatory specificity mechanisms of different stir-frying processes were obtained. The three-dimensional regulatory common mechanisms are as follows:①Thermal effects break down inherent barriers of medicinal materials and improve the dissolution of components. ②Inducing Maillard reaction, carbonization and other reactions of medicinal materials to promote the transformation of components. ③Combining the catalytic and harmonizing effects of excipients to achieve targeted enrichment of efficacious substances and precise control of toxic components. The five-dimensional regulatory specificity mechanisms manifest as:①The efficacy gradient pattern where stir-frying until yellow strengthens the spleen, stir-frying to brown aids digestion, and stir-frying to charcoal stops bleeding. ②According to the polarity difference and intrinsic properties, the liquid excipients form a directional synergistic mechanism of wine processing enhances ascending nature, ginger processing to warm and disperse, salt processing directs effects to the kidneys, vinegar processing targets the liver, honey processing imparts sweetness and moderation. ③Through porous structure and interfacial properties, solid excipients give the synergistic effect of rice processing for diarrhea relief, bran processing for stomach tonification, soil processing for warming the middle warmer, and clam powder/talcum powder/sand processing for texture optimization. ④Thermal effects induce decomposition/oxidation/polymerization and other reactions to reshape the material basis, directing changes in the efficacy. ⑤The targeted distribution of efficacy is regulated by component enrichment and meridian-guiding effect, and the meridian tropism is changed. The system, driven by thermal effect, excipient synergy and physicochemical reconstruction, integrates five-dimensional regulation of fire, solvent, interface, composition and distribution. It systematically explains the inherent law of efficacy-substance-process of traditional stir-frying, and provides theoretical basis and practical guidance for standardizing TCM processing and enhancing the efficacy.
3.Effect of multi-target transcranial direct current stimulation on performance of working memory-postural control dual-task in healthy adults
Zhining ZHOU ; Rong ZHOU ; Yanwen XIAO ; Bowen WANG ; Jiaojiao LÜ ; Yu LIU
Chinese Journal of Rehabilitation Theory and Practice 2024;30(1):21-28
ObjectiveTo investigate the effect of multi-target transcranial direct current stimulation (tDCS) and single-target tDCS on the performance of working memory-postural control dual-task in healthy adults, and to compare the regulatory effect of the two stimulation protocols. MethodsFrom November, 2020 to February, 2021, 19 healthy adults in Shanghai University of Sport were recruited and randomly accepted multi-target tDCS, single-target tDCS and sham stimulation with at least one week interval between any two stimulation protocols. The target areas of multi-target tDCS included left dorsal lateral prefrontal cortex (L-DLPFC) and bilateral primary motor cortex (M1), and single-tDCS only applied to L-DLPFC. Before and after stimulation, participants completed walking and standing balance tests under single task and dual-task conditions with the second task being a N-back task. The dual-task postural control performance, dual-task cost (DTC) and working memory performance were observed before and after stimulation. ResultsSignificant differences were observed among three stimulation protocols in the changes of stride variability (F = 3.792, P = 0.029), DTC of stride variability (F = 3.412, P = 0.040) and velocity of center of pressure (Vcop) (F = 3.815, P = 0.029). The stride variability (P = 0.047) and Vcop (P = 0.015) were significantly lower and the decrease in DTC of stride variability tended to be significant (P = 0.073) following multi-target tDCS, as compared to sham stimulation. Single-target tDCS significantly decreased the changes of stride variability (P = 0.011), DTC of stride variability (P = 0.014) and Vcop (P = 0.025), as compared to sham stimulation. Compared with single target tDCS, multi-target tDCS reduced the changes of the dual-task cost of the area of center of pressure (P = 0.035). Moreover, no significant difference was observed among the three stimulation protocols in the changes of each measure in the working memory test (P > 0.05). ConclusionBoth multi-target tDCS and single-target tDCS can improve the performance of working memory-postural control dual-task in healthy adults, and compared with single-target tDCS, multi-target tDCS has some advantages in regulating postural control.
4.Effect of Atractylodis Macrocephalae Rhizoma on Short-chain Fatty Acids and Intestinal Barrier in Mice with Slow-transit Constipation
Kang YIN ; Keli CHEN ; Yanwen LIU ; Songlin LIU ; Zilong HE ; Lichao YANG ; Xin CHEN ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(6):66-74
ObjectiveTo investigate the mechanism of Atractylodis Macrocephalae Rhizoma(AMR) in the treatment of slow-transmission constipation(STC) by observing the effects of AMR on short-chain fatty acids and intestinal barries in STC mice. MethodForty-eight male KM mice were randomly divided into blank group, model group, AMR low-, medium-, high-dose groups(2.5, 5, 10 g·kg-1) and mosapride group(2.5 mg·kg-1). Except for the blank group, all groups were gavaged with loperamide suspension(5 mg·kg-1) twice daily for 14 d to construct the STC mouse model. At the same time, each drug administration group was given the corresponding drug by gavage for consecutive 14 d, the blank and model groups were gavaged with equal volume of distilled water. The effects of the treatment of AMR on body mass, defecation frequency, fecal water content and intestinal propulsion rate of mice were observed, the pathological changes of mouse colon were observed by hematoxylin-eosin(HE) staining and periodic acid-Schiff(PAS) staining, the levels of gastrin(GAS) and motilin(MTL) in serum were detected by enzyme-linked immunosorbent assay(ELISA), gas chromatography-mass spectrometry(GC-MS) was used to detect the contents of short-chain fatty acids(SCFAs) in mouse feces, real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) and Western blot were used to determine the mRNA and protein expression levels of zonula occludens-1(ZO-1), Occludin, and Claudin-1 in the colon of mice. ResultCompared with the blank group, the body mass, defecation frequency, fecal water content and intestinal propulsion rate of mice in the model group were significantly decreased(P<0.05, P<0.01), the arrangement of colonic tissues was disordered, and the number of goblet cells was reduced, the levels of GAS and MTL in serum were significantly decreased(P<0.01), and the levels of SCFAs in the feces were on a decreasing trend, with the contents of acetic acid, propionic acid, butyric acid, isobutyric acid and valeric acid were significantly decreased(P<0.05, P<0.01), the mRNA and protein expression levels of ZO-1, Occludin and Claudin-1 in the colonic tissues were significantly decreased(P<0.01). The above results suggested that STC mouse model was successfully constructed. Compared with the model group, the body mass, defecation frequency, fecal water content and intestinal propulsion rate of mice in AMP administration groups all increased significantly(P<0.05, P<0.01), the mucosal layer of the colonic tissues was structurally intact without obvious damage, and the number of goblet cells increased, serum levels of GAS and MTL were significantly increased(P<0.01), the contents of SCFAs in the feces were all on a rising trend, with the contents of acetic, propionic, butyric and isobutyric acids rising significantly(P<0.05, P<0.01), the mRNA and protein expression levels of ZO-1, Occludin and Claudin-1 in the colonic tissues were significantly increased(P<0.05, P<0.01). ConclusionAMR is able to improve the constipation symptoms in STC mice, and its mechanism may be related to increasing the contents of SCFAs in the intestine as well as promoting the mRNA and protein expression levels of ZO-1, Occludin and Claudin-1 in the colon.
5.Therapeutic effects of Qiliqiangxin capsule on heart failure in aging rats after acute myocardial infarction
Yanwen SHANG ; Xin GUAN ; Shan LIU ; Chao CHANG ; He JIANG ; Jie GENG
Chinese Journal of Geriatrics 2024;43(1):60-64
Objective:To investigate the impact of QiliQiangXin Capsules on ventricular remodeling and cardiac contraction and relaxation function in aging rats with heart failure following myocardial infarction.Methods:From August 2022 to August 2023, a total of 30 old rats were randomly assigned to three groups: sham-operated group, model group, and treatment group, with 10 rats in each group selected through a digital lottery method.The model and treatment groups were created by ligating the anterior descending branch of the left coronary artery.The rats in the treatment group received daily administration of Astragalosa hebecarpa Drabanemerosa Strong Heart Capsule(1.0 g/kg)via gavage after 4 weeks.After the 4-week drug administration period, echocardiography was performed to measure various parameters including left ventricular end-diastolic internal diameter(LVIDd), left ventricular end-systolic internal diameter(LVIDs), left ventricular ejection fraction(LVEF), left ventricular anterior wall myocardial thickness(LVAWd), mitral valve early diastolic peak flow velocity(E peak), and early diastolic velocity of mitral annulus(e peak)detected by tissue Doppler(TDI). The E/e value was calculated based on these measurements.Additionally, serum levels of B-type brain natriuretic peptide(BNP), matrix metalloproteinase 2(MMP-2), matrix metalloproteinase 9(MMP-9), and tumor necrosis factor(TNF-α)were measured using enzyme-linked immunosorbent assay(ELISA). Hematoxylin-eosin(HE)staining was employed to observe the morphological changes in myocardial tissue.Results:Compared to rats in the model group, rats in the treatment group exhibited lower left ventricular internal dimension at end-diastole(LVIDd)(9.1±0.6 mm vs.11.4±0.8 mm, P<0.01), lower left ventricular internal dimension at end-systole(LVIDs)(5.9±0.8 mm vs.8.7±0.9 mm, P<0.01), lower E/e ratio(13.4±2.0 vs.16.3±2.8, P<0.05), higher left ventricular ejection fraction(LVEF)(68.8±7.1% vs.52.0±8.4%, P<0.01), and elevated left ventricular anterior wall thickness at end-diastole(LVAWd)(1.5±0.2 mm vs.1.2±0.3 mm, P<0.05). In addition, compared to rats in the model group, the treatment group showed a decrease in brain natriuretic peptide(BNP)(0.26±0.04 μg/L vs.0.34±0.05 μg/L, P<0.01), decreased matrix metalloproteinase-2(MMP-2)(3697.0±857.7 μg/L vs.4719.5±703.5 μg/L, P<0.01), decreased matrix metalloproteinase-9(MMP-9)(87.3±13.8 μg/L vs.116.5±9.6 μg/L, P<0.01), decreased tumor necrosis factor-alpha(TNF-α)(165.3±36.9 μg/L vs.269.8±35.0 μg/L, P<0.01), and lower TNF-α levels(165.3±36.9 μg/L vs.269.8±35.0 μg/L, P<0.01). Histological examination using hematoxylin and eosin(HE)staining revealed that the treatment group had less severe cardiac myocyte arrangement disorder and inflammatory reaction compared to the model group. Conclusions:Qiliqiangxin Capsules were found to effectively delay ventricular remodeling and improve myocardial contraction and relaxation function in aging rats with heart failure after acute myocardial infarction.
6.TCM Pharmacology Based on Bibliometrics and Patent Analysis: A Case Study of Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences
Lin ZHANG ; Yuhan DENG ; Yanwen LI ; Luming QIU ; Sijia MA ; Tuo LIU ; Zhiyong LI ; Yujie LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(23):8-18
ObjectiveTo analyze the literature related to traditional Chinese medicine (TCM) pharmacology of Institute of Chinese Materia and Medica, China Academy of Chinese Medical Sciences (hereinafter referred to as "Institute of Chinese Materia and Medica"), and evaluate the research status, development trend, influence of discipline members, and patent technology of this field. MethodThe papers from 2002 to 2024 in the databases of CNKI and Web of Science (WOS) were searched, whose first authors or corresponding authors are from the Institute of Chinese Materia and Medica, and CiteSpace 6.3.R6 was adopted for visual analysis of the annual number of publications and keywords. Additionally, the total number of published papers, citation times, and other measurement parameters of discipline members of TCM pharmacology in the institute were counted. After obtaining the h index, the academic track was calculated, and the academic influence of discipline members was quantitatively evaluated from the aspects of the academic track T and highly cited papers. Meanwhile, patent data from 2005 to 2024 of TCM pharmacology in the studied institute were retrieved from the HimmPat patent database, and Excel 2022 and Origin 2021 were utilized to conduct visual analysis on the overall patent application trend and technology composition. ResultIn the past 20 years or more, the annual publication of academic papers has been on the rise generally, and the key words include "animal model", "mechanism of action", "network pharmacology" and so on. The studies focus on the innovative methods of TCM pharmacological mechanisms, basic research on TCM prevention and treatment of major non-infectious diseases, and the prevention and treatment of respiratory viral diseases. The academic track T of the discipline members of TCM pharmacology in the Institute of Chinese Materia and Medica is positive, with sound personal influence. In recent years, the patent application trend has increased significantly, mainly concentrating on A61K patents and G01N subcategories, and IPC large-group analysis shows that the main technical applications are mainly in A61K36, A61K31, and other fields. ConclusionTCM pharmacology in the institute develops steadily and the academic influence of the discipline members is still sound, with fruitful patent achievements. In the future, research on pharmacological discipline innovation and new drug research and development can be enhanced, and multidisciplinary integration studies should be carried out to promote TCM modernization.
7.Analysis of pathogen distribution and drug sensitivity of otomycosis in Hangzhou
Danqing LIU ; Xiao HE ; Yanwen SUN ; Xuxia TANG
Chinese Archives of Otolaryngology-Head and Neck Surgery 2024;31(8):501-505
OBJECTIVE To analyze the clinical characteristics,pathogen distribution and drug sensitivity of otomycosis in Hangzhou,in order to provide assistance for standardized treatment of otomycosis. METHODS A total of 115 cases of otomycosis with intact tympanic membranes,treated at our hospital from December 2022 to February 2024,were included in the study. Ear secretions were cultured,and pathogens were identified through morphological examination and mass spectrometry detection. Antifungal susceptibility testing was performed using a fungal susceptibility plate. All patients underwent ear canal cleaning under otoendoscopy combined with local drug perfusion. RESULTS The predominant pathogen in this region was Aspergillus terreus(60.8%). The susceptibility results showed that Aspergillus terreus is sensitive to posaconazole,voriconazole and itraconazole,and exhibits varying degrees of resistance to the other six drugs. The total effective rate of treatment in the 115 included patients reached 93%. CONCLUSION The main pathogen of otomycosis in this area is Aspergillus terreus,which is sensitive to triazole antifungal agents such as posaconazole,voriconazole,and itraconazole,which can be considered as the first choice for clinical treatment.
8.Introduction to Guidelines for public health protection against high temperature and heatwaves
Tiantian LI ; Chen CHEN ; Mengxue ZHANG ; Yanwen LIU ; Lijun PAN ; Qinghua SUN ; Yuanyuan LIU ; Yi ZHANG ; Lin WANG
Chinese Journal of Preventive Medicine 2024;58(5):588-591
In recent years, the high temperature and heatwaves have seriously affected the health of Chinese residents, and there is an important need for public health protection guidelines for high temperature and heatwaves in China. The National Bureau of Disease Control and Prevention has organized experts to fully investigate the evidence from epidemiological research on the health of populations in high temperature and heatwaves globally and in China, analyze the health hazards and protection needs of different populations, and put forward practical and effective individual protection measures and health recommendations. For this reason, the "Guideline for Public Health Protection against High Temperature and Heatwaves" (referred to as the "Guideline") was officially issued in June 2023. This article interprets the background and significance of the Guideline, the principles of compilation, the main considerations, the main contents, the implementations and promotions and other aspects, to improve the understanding of the content of the Guideline and strengthen the publicity and implementations.
9.Direct current stimulation of the dorsolateral prefrontal cortex can improve the postural control of healthy adults
Bowen WANG ; Rong ZHOU ; Yanwen XIAO ; Yang GENG ; Zhining ZHOU ; Jiaojiao LYU ; Yu LIU
Chinese Journal of Physical Medicine and Rehabilitation 2024;46(10):911-915
Objective:To explore with healthy adults any effect on postural control of transcranial direct current stimulation (tDCS) applied over the left dorsolateral prefrontal cortex (L-DLPFC) and the primary motor cortex (M1).Methods:Eighteen healthy adults received 3 tDCS stimulation protocols sequentially applied to either the left dorsolateral prefrontal cortex alone, the left dorsolateral prefrontal cortex and the bilateral primary motor cortex simultaneously or sham stimulation, respectively. Each intervention protocol lasted for 20 minutes with a total current intensity of less than 4mA, with a 7-day interval between the each stimulation protocol. Single-task and dual-task walking and balance tests were administered before and after each stimulation protocol, followed by statistical analysis.Results:The results of the single-task gait function testing showed that the change in step width before and after single-target tDCS stimulation was (-0.511±1.072)cm, significantly better than with sham stimulation. In the dual-task gait function tests the change in step width after single-target tDCS stimulation was (-0.511±1.072)cm, significantly better than in the other two groups.Conclusions:Stimulating only the dorsolateral prefrontal cortex can effectively regulate cognitive-motor postural control. Multi-target tDCS offers no particular advantage.
10.Preliminary exploration of Kub stage classification and treatment of clinical renal tuberculosis
Rongquan YANG ; Li YANG ; Yingui YANG ; Chang LIU ; Yanwen WANG ; Xingjie LI ; Biao HU
Chinese Journal of Urology 2024;45(3):168-174
Objective:To investigate the Kub stage classification of clinical renal tuberculosis and provide a reference for disease evaluation and management.Methods:A retrospective analysis was conducted on clinical data from 180 patients diagnosed with renal tuberculosis who were admitted to the First Affiliated Hospital of Dali University between January 2011 and December 2022. The 180 cases included 82 males and 98 females. The average age was (44.56±9.62) years. The tuberculosis lesions of 101 cases were on left kidney, while that of 79 cases were on right kidney. Localized/multiple lesions were observed in 118 cases, whereas extensive destruction was found in 62 cases. Moreover, the ureters were involved in 165 cases, and bladder invasion occurred in 139 cases. For patients undergoing renal preservation treatment, a comprehensive approach was employed, including ureteral stricture stenting and regular replacement of double-J stent, percutaneous nephrostomy, excision of tuberculosis lesions or partial nephrectomy, ureter reconstruction, and sigmoidocystoplasty. In cases requiring nephrectomy, either laparoscopic or open surgical approaches are utilized. Based on the results of patient imaging and endoscopy, staging and classification were performed based on the extent of tuberculosis lesions involving the kidneys (K), ureters (u), and bladder (b). The state for each above organ was divided into four stages: K stage (K 1-4), u stage (u 0-u 3), and b stage (b 0-b 3), which were then combined with the actual disease condition for further categorization. The classifications included local intrarenal type(K 1-2u 0b 0), local renal-ureteral involvement type(K 1-2u 1-2b 0-2), multiple renal-ureteral invasion type(K 3u 1-3b 0-2) and extensive destruction type(K 4u 1-3b 1-3). Further analysis was conducted on kidney preservation and subsequent disease progression among patients with different subtypes. Results:Among the 180 patients, 15 cases of local intrarenal type underwent kidney-preserving treatment. Out of these cases, 6 patients (4 patients in stage K 1u 0b 0 and 2 patients in stage K 2bu 0b 0) achieved clinical cure after receiving a pure durative anti-tuberculosis for two years. Additionally, 4 patients in stage K 2au 0b 0 attained clinical cure following anti-tuberculosis drugs combined with partial nephrectomy after two years of follow-up. Furthermore, 5 patients in stage K 2bu 0b 0 underwent ureteroscopy and D-J stent placement for regular stent replacement. The stents were subsequently removed after two years, and the patients remained clinically stable. Among the 47 cases with localized renal-ureteral involvement type, all initially underwent kidney-preserving treatment. Of these, 5 patients in stage K 1u 1b 0-2 achieved clinical remission, while disease progression necessitated nephrectomy for 3 patients in stage K 2au 1-2b 0-2 and 7 patients in stage K 2bu 1-2b 0-2. The remaining patients maintained stable conditions. Among the 56 cases of multiple renal-ureteral invasion type, stable conditions were observed in 9 out of 24 patients with stage K 3u 1-2b 0-2, while disease progression necessitated nephrectomy in 15 cases. Nephrectomy was performed for all 32 patients with stage K 3u 3b 0-2. In instances of extensive destruction type, nephrectomy was conducted for all 62 cases. The progression rates of the local renal-ureteral involvement type and the multiple renal-ureteral invasion type were 21.28% (10/47) and 48.39% (15/31), and the difference was statistically significant ( P<0.05). The kidney preservation rates of the local renal-ureteral involvement type and multiple renal-ureteral invasion type were 78.72% (37/47) and 16.07% (9/56), and the difference was statistically significant ( P<0.001). Conclusions:The Kub stage classification can provide reference to management and monitoring for renal tuberculosis. The patients in the local intrarenal type and local renal-ureteral involvement type are often treated with anti-tuberculosis plus ureteral stent implantation or partial nephrectomy or ureteral reconstruction. The patients in the multiple renal-ureteral invasion type and extensive destruction type are mostly managed by nephrectomy.

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