1.Tracing Development of LIU Wansu's Theory of ''Fire-heat Inducing Stroke''
Xin LAN ; Changxiang LI ; Haojia ZHANG ; Jialin CHENG ; Zijin SUN ; Liyang DONG ; Zilin REN ; Xueqian WANG ; Fafeng CHENG ; Qingguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):32-41
LIU Wansu, as the foremost of the four great masters of the Jin-Yuan period, established the "theory of fire-heat'' and extended the fire-heat pathogenesis framework to the field of stroke, thereby forming the theory of ''fire-heat inducing stroke''. This achieved a paradigmatic shift in stroke etiology from ''exogenous wind inducing stroke'' to ''fire-heat inducing stroke''. This paper systematically reviews the developmental trajectory of LIU Wansu's ''fire-heat inducing stroke'' theory and explores the social background, academic origins, and core connotations of its theoretical construction. The study found that, based on the ''Nineteen Pathomechanisms'' in the Huangdi's Internal Classic (Huang Di Nei Jing) and combined with clinical practice, LIU Wansu proposed that fire-heat is the fundamental cause of stroke, and that the Six Climatic Factors and the Five Zhi-Emotions can all transform into fire. He further constructed a stratified syndrome differentiation and therapeutic system centered on clearing heat and purging fire, emphasizing differentiated treatment of exterior and interior syndromes, Six Meridians syndrome differentiation, and seasonally adjusted medication. This theory not only resolved the diagnostic and therapeutic dilemmas of febrile epidemic diseases during the Jin-Yuan period, but also exerted a profound influence on later physicians such as ZHANG Zihe and ZHU Danxi, thereby promoting the pluralistic development of stroke theory in traditional Chinese medicine (TCM). Modern pharmacological research provides solid scientific evidence, confirming that the ''fire-heat'' pathological state is highly associated with key mechanisms such as excessive inflammatory responses, oxidative stress, and excitatory amino acid toxicity following cerebral ischemia. Heat-clearing and fire-purging prescriptions and agents, such as Huanglian Jiedu Tang and baicalin, can exert multi-target neuroprotective effects by regulating inflammatory signaling, enhancing antioxidant enzyme activity, and balancing neurotransmitters. This not only verifies the scientific basis of the ''fire-heat inducing stroke'' theory from a modern biological perspective but also provides conclusive evidence for the clinical application of heat-clearing and fire-purging therapy. LIU Wansu's ''fire-heat inducing stroke'' theory represents a major milestone in the historical understanding of stroke pathogenesis, and its academically transitional insights continue to hold core guiding value for the pattern identification and treatment of ischemic stroke today.
2.Effects of Huanglian Jiedutang on Neutrophil Infiltration in Brain of MCAO Mice via Regulation of Chemokine Expression in Exosomes
Haojia ZHANG ; Kai WANG ; Zijin SUN ; Chunyu WANG ; Wei SHAO ; Kunjing LIU ; Liyang DONG ; Dan CHEN ; Wenxiu XU ; Chuanzun WANG ; Wen WANG ; Changxiang LI ; Xueqian WANG ; Fafeng CHENG ; Qingguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):42-53
ObjectiveTo investigate whether Huanglian Jiedutang can inhibit neutrophil infiltration in the brains of middle cerebral artery occlusion (MCAO) mice by regulating the expression of neutrophil-related chemokines in exosomes, thereby achieving therapeutic effects. MethodsA total of 130 male specific pathogen-free (SPF) C57BL/6J mice were randomly divided into four groups: Sham-operated group, MCAO model group, Huanglian Jiedutang group (6 g·kg-1), and Ginaton group (21.6 mg·kg-1), with 10 mice in the Ginaton group and 40 mice in each of the remaining three groups. Mice in the Huanglian Jiedutang group and the Ginaton group were administered the corresponding drugs by oral gavage once daily at a volume of 0.15 mL·(10 g)-1 for 7 consecutive days, while the sham-operated and model groups received an equal volume of saline via the same route. After 7 days, MCAO surgery was performed. The distal and proximal ends of the right common carotid artery (CCA) were ligated, a small incision was made between the two ligatures, and a silicone rubber-coated monofilament with a rounded tip was inserted into the lumen to occlude the CCA. The filament was left in place for 1 h to establish a focal cerebral ischemia model. At 24 h after modeling, mice were evaluated. Neurological function was assessed using the Longa score. Cerebral infarct volume was measured by 2,3,5-triphenyltetrazolium chloride (TTC) staining. Cerebral blood flow was observed by laser speckle imaging. Hematoxylin and eosin (HE) staining and Nissl staining were used to observe pathological changes in brain tissues. Exosomes were isolated from mouse plasma and brain tissues by ultracentrifugation and molecular size exclusion and identified by electron microscopy, particle size analysis, and protein blotting. Long-chain RNA libraries of exosomes were constructed and sequenced. Real-time quantitative reverse transcription polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of inflammatory factors and neutrophil-related chemokines in exosomes from plasma and brain tissues of each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the protein expression of inflammatory factors and neutrophil-related chemokines in exosomes from brain tissues of each group. Immunohistochemistry was used to detect the expression of the neutrophil-specific protein myeloperoxidase (MPO) in the brains of mice in each group. ResultsCompared with the sham-operated group, the model group showed decreased neurological function scores (P<0.01), obvious cerebral infarction (P<0.01), reduced cerebral blood flow (P<0.01), neuronal necrosis in the brain, and decreased numbers of Nissl bodies (P<0.01). The mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were significantly increased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were increased (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were elevated (P<0.01). Compared with the model group, the Huanglian Jiedutang group and the Ginaton group showed increased neurological function scores (P<0.05), reduced cerebral infarct volume (P<0.01), restored cerebral blood flow (P<0.01), reduced necrotic cells in the brain, and increased numbers of Nissl bodies (P<0.01). In the Huanglian Jiedutang group, the mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were decreased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were reduced (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were decreased (P<0.01). ConclusionHuanglian Jiedutang can effectively regulate the expression of neutrophil-related chemokines in exosomes from plasma and brain tissues of MCAO mice, thereby reducing neutrophil infiltration in the brain and achieving therapeutic effects.
3.Investigating Effect of Xianglian Huazhuo Prescription on Cell Cycle and Proliferation in Rats with Chronic Atrophic Gastritis Through TGF-β1/Smads Signaling Pathway
Yican WANG ; Jie WANG ; Yirui CHENG ; Xiaojing LI ; Yibin MA ; Qiuhua LIU ; Ziwei LIU ; Yuxi GUO ; Pengli DU ; Yanru CAI ; Yao DU ; Zheng ZHI ; Bolin LI ; Qian YANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):128-136
ObjectiveTo explore the potential mechanism of Xianglian Huazhuo prescription (XLHZ) in treating chronic atrophic gastritis (CAG) by regulating cell cycle and inhibiting proliferation, using bioinformatics technology and animal experiments. MethodsDifferential expressed genes (DEGs) related to CAG were screened using GEO database and GEO2R tool. Weighted gene co-expression network analysis (WGCNA) was employed to search for hub genes of CAG. These hub genes were intersected with cell cycle proliferation based on GeneCards database. Eenrichment analysis of the intersecting genes was performed to obtain signaling pathways and biological processes related to CAG. Protein protein interaction (PPI) analysis of genes was conducted using the Protein Interaction Platform (STRING) database to search the super hub gene (hub 2.0), and animal experiments were conducted for further validation. Fourteen of 70 male Wistar rats were randomly selected as the normal group, and the remaining 56 rats were prepared by the combined modeling method of "starvation disorder+N-methyl-N-nitro-N-nitrosoguanidine (MNNG) + sodium salicylate". The successfully modeled rats were randomly divided into the model group, XLHZ-H, XLHZ-M, and XLHZ-L groups (36, 18, 9 g·kg-1, respectively), and Morodan group (1.4 g·kg-1). Each group was given corresponding intervention for 60 days. Hematoxylin-eosin (HE) staining was used to observe the histopathological changes of gastric mucosa in rats. The ultrastructure of gastric mucosal tissue cells was observed by transmission electron microscopy. The relative expression levels of TGF-β1, Smad2 and Smad3 proteins, S/G2/M phase marker geminin and proliferation marker MCM2 were detected by Western blot in gastric mucosal tissue, and Spearman correlation analysis was performed. ResultsA total of 15 hub 2.0 genes were identified, including TGF-β1, suggesting the involvement of the TGF-β1 signaling pathway in the CAG pathogenesis. Compared with the normal group, the expressions of TGF-β1, Smad2, geminin and MCM2 proteins in the gastric mucosa tissue of the model group were increased (P<0.05), and the expression of Smad3 protein was decreased (P<0.05). Compared with the model group, the expressions of TGF-β1 and geminin in the gastric mucosa were decreased in the drug groups (P<0.05). The XLHZ-M group, XLHZ-H group and Morodan group had significantly decreased protein expression of Smad2 and MCM2 (P<0.05). The protein expression of Smad3 was significantly increased in XLHZ-M, XLHZ-H, and Morodan groups (P<0.05). Spearman correlation analysis showed that Smad3 was negatively correlated with other indicators, and positively correlated with other indicators (P<0.01). ConclusionXLHZ may inhibit TGF-β1/Smads signaling pathway, regulate cell cycle, and inhibit proliferation in the treatment of CAG.
4.Exploring Mechanism of Xiaoqinglongtang Against High Altitude Pulmonary Edema Based on Integrative Pharmacology Model
Rongrong WANG ; Chuchu WANG ; Qi XU ; Qin JIAN ; Junzhi LIN ; Ruli LI ; Chuan ZHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):137-148
ObjectiveTo explore the potential mechanism of Xiaoqinglongtang(XQL) in the prevention and treatment of high altitude pulmonary edema(HAPE) by network pharmacology, molecular docking, and molecular dynamics simulation, and to verify it by in vivo animal model. MethodsIn this study, the active ingredients, drug targets, and HAPE-related targets of XQL were collected from BATMAN-TCM, GeneCards, and Online Mendelian Inheritance in Man(OMIM) databases. The protein-protein interaction(PPI) network was constructed by using intersection targets, and the core targets were screened and visualized by Cytoscape software. Functional annotation and pathway analysis of the intersection targets were performed by gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) functional enrichment. AutoDock and GROMACS were used to evaluate the binding ability of active ingredients to key targets. In the experimental verification part, a mouse model of HAPE induced by hypobaric hypoxia(simulated 6 000 m altitude for 48 h) was established. The control effect was evaluated by hematoxylin-eosin(HE) staining, lung tissue water content, lung tissue wet/dry weight ratio, real-time quantitative polymerase chain reaction(Real-time PCR) detection of gene expression levels, and immunohistochemistry and Western blot detection of key protein expression. ResultsA total of 355 active ingredients of XQL, 2 142 targets, 716 HAPE-related targets, and 236 intersection targets were obtained by network pharmacology analysis. Key core targets such as interleukin (IL)-6, tumor necrosis factor (TNF), protein kinase B1 (Akt1), and hypoxia-inducible factor-1α (HIF-1α) were screened. The results of GO analysis of common targets involved 738 biological processes(BP), 72 cellular components(CC), and 135 molecular functions(MF). KEGG analysis effectively enriched two important signaling pathways: Phosphoinositol 3-kinase (PI3K)/Akt and HIF-1α. The results of molecular docking and molecular dynamics simulation showed that the screened active ingredients had good binding ability with key targets. In the HAPE model induced by hypobaric hypoxia(6 000 m, 48 h), the lung tissue water content, lung tissue wet/dry weight ratio, and pathological injury score of the model group were significantly increased(P<0.01), accompanied by exudation of a large number of red blood cells in the alveoli and alveolar interstitium, a significant increase in inflammatory cells, a significant widening of the alveolar septum, and mutual fusion between the alveoli. The XQL administration group significantly improved the above pathological changes(P<0.01). The results of inflammatory factor expression showed that compared with the control group, the model group showed significantly up-regulated expression of TNF-α, IL-6, and IL-1β in the lung tissue(P<0.01). Compared with the model group, the XQL administration group had significantly decreased expression of inflammatory factors(P<0.05, P<0.01). The mRNA expression of key pathway related genes PI3K, Akt1, mammalian target of rapamycin(mTOR), and HIF-1α was significantly increased in the model group(P<0.01), and decreased in a concentration-dependent manner after XQL administration(P<0.05, P<0.01). The expression levels of key proteins PI3K, phosphorylation(p)-PI3K, Akt1, p-Akt1, mTOR, p-mTOR, and HIF-1α in lung tissue were analyzed by immunohistochemistry and Western blot. Compared with the blank group, the model group showed increased expression of key proteins(P<0.05, P<0.01). Compared with the model group, the XQL administration group exhibited decreased expression of key proteins(P<0.05, P<0.01). ConclusionXQL can reduce lung inflammation and improve HAPE. The mechanism may be related to the regulation of PI3K/Akt/mTOR and HIF-1α pathways. This study provides a new idea and a theoretical basis for the treatment of HAPE with XQL.
5.Mechanistic Study on Tougu Xiaotong Capsules in Regulating PANoptosis to Delay Degeneration of Chondrocytes in Knee Osteoarthritis
Jinxia YE ; Yixin LIN ; Xiaoqing LEI ; Yanfeng HUANG ; Changlong FU ; Desen LI ; Wenyi WANG ; Lan WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):149-161
ObjectiveTo investigate the effect of Tougu Xiaotong capsules (TGXTC) on the regulation of chondrocyte PANoptosis, delay of chondrocyte degeneration, and improvement of the symptoms in knee osteoarthritis (KOA). MethodsIn vivo experiments: 50 male C57BL/6 mice were randomly assigned into five groups (n=10 per group): sham operation group, model group, low-dose TGXTC group (7.2 g·kg-1), high-dose TGXTC group (14.4 g·kg-1), and diclofenac sodium group (0.05 g·kg-1). Except for the sham group, KOA models were established in all other groups using the modified Hulth method. Following successful model induction, the TGXTC groups received daily oral gavage of 7.2 or 14.4 g·kg-1 for 6 weeks, while the diclofenac sodium group received 0.05 g·kg-1 solution daily over the same duration. Model evaluation was performed using Lequesne MG score; micro-computed tomography (micro-CT) was used to scan the knee, hematoxylin-eosin (HE) staining and safranin O-fast green staining were used to observe the morphology of cartilage, transmission electron microscopy (TEM) was used to determine ultrastructural changes of PANoptosis. Multiple immunofluorescence (IF) co-localization assays was performed to detect the co-localization of cleaved Caspase-3, receptor-interacting protein 3 (RlPK3), and the N-terminal domain of gasdermin D (GSDMD-N) in cartilage tissue, while western blot was employed to detect the expression levels of cleaved Caspase-3, RIPK3, and GSDMD-N. In vitro experiments: The knee cartilages of 4-week-old SD rats were isolated, and a chondrocyte in vitro culture system was established through mechanical digestion with 0.2% type Ⅱ collagenase. Second-generation chondrocytes were divided into three groups: the control group, the model group (pretreated with 10 mg·L-1 lipopolysaccharide (LPS) for 24 h followed by treatment with 1 μmol·L-1 nigericin for 4 h), and the TGXTC treatment group (pretreated with 10 mg·L-1 LPS for 24 h, followed by exposure to 1 μmol·L-1 nigericin for 4 h and subsequently treated with 100 mg·L-1 TGXTC for an additional 24 h). The levels of reactive oxygen species (ROS), apoptosis, necroptosis, and pyroptosis of chondrocytes were evaluated via fluorescence microscopy following staining with ROS detection, AO/EB and YO-PRO-1/PI staining kits. Transmission electron microscopy was utilized to investigate the ultrastructural changes associated with PANoptosis in cartilage tissue of KOA mice. Inflammatory cytokine levels (IL-1β and IL-18) were measured using ELISA. Western blot was conducted to assess protein expressions related to PANoptosis, including cleaved Caspase-3, cleaved Caspase-8, RIPK3, ZBP1, GSDMD-N, and NLRP3. ResultsCompared with the sham group, the Lequesne MG scores were significantly up-regulated(P<0.01) in the model group, and the pathological changes of cartilage were significantly, with joint spaces narrower, osteophyte formation increased, secere abrasion of cartilage surface. Ultrastructural analysis revealed pronounced chondrocyte apoptosis, necroptosis, and pyroptosis, along with markedly elevated expression of cleaved Caspase-3, RlPK3, and GSDMD-N in cartilage tissue (P<0.01). In addition, The mean fluorescence intensities of ROS, orange-red fluorescence in AO/EB staining, green fluorescence and red fluorescence in YO-PRO-1/PI staining were increased of chondrocyte in the model group (P<0.01) . The levels of inflammatory factors IL-1β and IL-18 in the supernatant were increased (P<0.01). The expression of PANoptosis related proteins (cleaved Caspase-3, cleaved Caspase-8, RIPK3, ZBP1, GSDMD-N, and NLRP3) were also significantly upregulated(P<0.05). Compared to the model group, the TGXTC group demonstrated a significant improvement in various parameters of mice. These included a reduction in the Lequesne MG score, an increase in joint space, a decrease in osteophyte formation, diminished cartilage damage, reduced release of ROS, and alleviation of apoptotic, necroptotic, and pyroptotic processes in chondrocytes. Additionally, mitochondrial swelling and endoplasmic reticulum dilation were also mitigated. The levels of ROS as well as IL-1β and IL-18 were significantly decreased (P<0.05). Furthermore, the expression levels of proteins associated with PANoptosis in cartilage tissue showed marked reductions (P<0.05). Similar results were observed in chondrocytes: cleaved Caspase-3, cleaved Caspase-8, RIPK3, ZBP1, GSDMD-N, and NLRP3 exhibited significant decreases as well (P<0.05). ConclusionTGXTC may mitigate chondrocytes degeneration and alleviate KOA symptoms by reducing oxidative stress and suppressing the activation of PANoptosis pathways.
6.Correlation Analysis of Huanglian Jiedu Wan on Syndrome Improvement and Clinical Biomarkers of "Excess Heat-Toxicity" Based on Machine Learning Model
Qi LI ; Keke LUO ; Baolin BIAN ; Hongyu YU ; Mengxiao WANG ; Mengyao TIAN ; Wen XIA ; Yuan MA ; Xinfang ZHANG ; Pengyue LI ; Nan SI ; Hongjie WANG ; Yanyan ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):162-173
ObjectiveThis paper aims to find the identified and validated clinical biomarker data building upon a clinical study of early-phase phase Ⅱ and investigate the correlation analysis of Huanglian Jiedu Wan on syndrome improvement and clinical biomarkers in the treatment of "excess heat-toxicity" based on a machine learning model. Additionally, the effective prediction of clinical biomarker values for the main symptoms of the "excess heat-toxicity" syndrome was assessed. MethodsA total of 229 patients meeting the inclusion criteria for "excess heat-toxicity" syndrome were randomly divided into the Huanglian Jiedu Wan group and the placebo group. Syndrome score transition matrices were constructed for the Huanglian Jiedu Wan group and the placebo group based on three main symptoms of "excess heat-toxicity" syndrome, such as oral ulcers, sore throat, and gum swelling and pain. Data from the patients with these three syndromes were also integrated for an overall analysis. The corresponding syndrome score transition matrices were further constructed to visualize symptom change trends of the patients in the two groups via heatmaps. Based on the identified and validated clinical biomarkers related to inflammation, oxidative stress, and energy metabolism in the early phase, Spearman correlation analysis was employed to analyze and evaluate the associations between clinical biomarkers and syndrome improvement. Key clinical biomarkers reflecting the effect of Huanglian Jiedu Wan were screened through the comparison of differences between groups. An extreme gradient boosting (XGBoost) algorithm was used to develop a prediction model for main symptom classification, with classification performance evaluated through 10-fold cross-validation. Feature importance analysis was applied to identify variables with the greatest contribution to the prediction result. ResultsThe syndrome transition matrix results indicated that the Huanglian Jiedu Wan group showed a superior effect to the placebo group in improving oral ulcers, sore throat, and overall symptoms, with significant effects observed especially in sore throat and overall symptom analyses (P<0.01). Spearman correlation analysis revealed that several clinical biomarkers positively correlated with "excess heat-toxicity" syndrome and its main symptom improvement, were also called "heat-related biomarkers", including succinic acid, α-ketoglutaric acid, glycine, lactic acid, adenosine monophosphate (AMP), tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), interleukin-1β (IL-1β), interleukin-4 (IL-4), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10), and so on. Conversely, clinical biomarkers negatively correlated with symptom severity, were also called "heat-clearing related biomarkers" after administration of Huanglian Jiedu Wan, including malic acid, fumaric acid, cis-aconitic acid, adrenocorticotropic hormone (ACTH), IL-1β, IL-4, IL-8, succinic acid, and citric acid. The XGBoost classification model using all 52 biomarkers as variables achieved an average test accuracy of 0.754 and an average F1 score of 0.777. Feature importance analysis identified the scores of glutamic acid in saliva and IL-6 were the highest in all the variables, with importance scores of 0.081 and 0.080, respectively. After screening out 14 key variables and optimizing the parameters, model performance improved to an average accuracy of 0.758 and an F1 score of 0.798. Feature importance analysis further determined that the glutamic acid in saliva and IL-6 showed obvious changes after screening the variables, confirming the good syndrome prediction ability of the model constructed by these key clinical biomarkers. ConclusionThis study systematically elucidates the correlation between syndrome improvement and clinical biomarkers of Huanglian Jiedu Wan in the treatment of "excess heat-toxicity" syndrome. An XGBoost classification model based on key clinical biomarkers is successfully established, achieving effective prediction of the symptoms related to the "excess heat-toxicity" syndrome such as oral ulcers and sore throat and providing a new insight for objective identification of traditional Chinese medicine syndromes.
7.Volatile Component Differences in Xihuangwan Prepared with Natural and Artificial Musk Based on Non-targeted and Targeted Metabolomics
Jing WANG ; Fangzhu XU ; Li MENG ; Qizhen ZHU ; Huanjun ZHAO ; Caina YU ; Xuelian CHEN ; Hui GAO ; Zimin YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):194-201
ObjectiveHeadspace solid-phase microextraction-gas chromatography-mass spectrometry(HS-SPME-GC-MS) and GC-triple quadrupole MS(GC-QqQ-MS) in combination with non-targeted and targeted metabolomics were employed to systematically analyze the chemical composition differences of Xihuangwan prepared with natural musk and artificial musk, and establish an identification system for them. MethodsThe volatile components of 9 batches of Xihuangwan samples from 8 manufacturers were analyzed by HS-SPME-GC-MS non-targeted metabolomics, and identified by comparing their MS data with the National Institute of Standards and Technology(NIST) spectral library. Orthogonal partial least squares-discriminant analysis(OPLS-DA) was used to identify differential volatile components of Xihuangwan prepared with natural musk and artificial musk. Additionally, GC-QqQ-MS targeted metabolomics was applied to quantify the levels of α-pinene, β-elemene, muscone, dehydroepiandrosterone, bornyl acetate, and octyl acetate in 27 batches of samples from 9 manufacturers. Cluster analysis, principal component analysis(PCA), and partial least squares-discriminant analysis(PLS-DA) were conducted to further explore the differences in volatile components between Xihuangwan samples prepared with natural musk and artificial musk. ResultsNon-targeted metabolomics identified 291 volatile compounds in Xihuangwan, including alkanes, esters, alkanes, alcohols, ketones, naphthalenes and others. OPLS-DA analysis revealed distinct separation between Xihuangwan samples containing artificial musk(A1, C1, D1, E1, F1, G1, I1) and those containing natural musk(H1, H3). A total of 30 differential metabolites were identified. The relative contents of these 30 differential metabolites were visualized using a radar chart, revealing significant differences in the levels of octanol, borneol acetate and muscone. Cluster analysis and PCA results from targeted metabolomics indicated that Xihuangwan could be classified into two distinct groups:one composed of natural musk(H1, H3) and the other of artificial musk, sample H2. PLS-DA identified muscone, octyl acetate, and dehydroepiandrosterone as key differential volatile components. Although no significant difference was observed in the content of octyl acetate between the two groups, statistically significant differences were found for muscone and dehydroepiandrosterone(P<0.05). ConclusionMuscone and dehydroepiandrosterone can be used for the differentiation of Xihuangwan samples containing natural musk from those containing artificial musk. This study systematically and comprehensively analyzed the differences in the types and contents of major volatile components in Xihuangwan prepared with natural musk and artificial musk, providing a scientific basis for quality evaluation and control of Xihuangwan.
8.Herbal Textual Research on Piperis Longi Fructus in Famous Classical Formulas
Haihua WANG ; Xiaoqi JING ; Juan LI ; Dabang REN ; Fusheng ZHANG ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):210-219
This article systematically analyzes the historical evolution of the name, origin, medicinal parts, producing area, harvesting and processing, nature, flavor and efficacy of Piperis Longi Fructus by referring to the materia medica, medical books, and prescription books of past dynasties, combined with the relevant modern literature, in order to provide a basis for the development and utilization of famous classical formulas containing this herb. According to the herbal textual research, the name of Piper longum first appeared in Nanfang Caomuzhuang, and it also has other aliases such as Biboli, Halou, and Hujiaohua. Historically, the origin of Piperis Longi Fructus has been P. longum of the Piperaceae family. In ancient times, both the fruit and root were used as medicine, and since the Republic of China, the fruit has been mainly used as medicine. The medicinal part is the dried, nearly ripe or ripe fruit spikes. Piperis Longi Fructus is native to India and has been introduced into China since the Tang dynasty. In the Ming dynasty, Bencao Pinhui Jingyao clearly stated that the genuine producing area was "Duanzhou", present-day Zhaoqing in Guangdong province. Nowadays, it is planted in Guangdong, Guangxi, Hainan, Yunnan and other regions. Historically and currently, harvesting occurs in autumn. The ancient processing method uniformly involved removing the stems, soaking in the sourest vinegar overnight, baking, and scraping off the peels and grains with a knife until clean. In modern times, impurities are removed, and it is dried in the sun and crushed when used. The properties, functions and applications of P. longum are basically the same in ancient and modern times. It tastes pungent, is warm in nature, and non-toxic. It has the effects of warming the middle-jiao to dispel cold, lowering Qi and relieving pain, and is used for cold pain in the epigastrium and abdomen, vomiting, diarrhea, chest pain, headache, and toothache. Based on the research results, it is recommended that when developing famous classical formulas containing Piperis Longi Fructus, the dried nearly ripe or ripe fruit spikes of P. longum should be used. If there are no clear processing requirements, it is recommended to use the raw products for medicinal use, and the specific processing methods can refer to the relevant requirements under Piperis Longi Fructus in the 2025 edition of the Pharmacopoeia of the People's Republic of China. If processing requirements such as soaking in vinegar and peeling are clearly specified, it is recommended to follow the ancient methods.
9.Interpretation of Evidence-to-decision Framework and Its Application in Pharmacovigilance Guidelines of Chinese Patent Medicines
Hongyan ZHANG ; Xin CUI ; Yuanyuan LI ; Zhifei WANG ; Mengmeng WANG ; Shuo YANG ; Xiaoxiao ZHAO ; Fumei LIU ; Yaxin WANG ; Rui MA ; Yanming XIE ; Lianxin WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):220-228
To interpret the evidence-to-decision (EtD) framework and to illustrate its application in traditional Chinese medicine (TCM) guideline development using the example of the Pharmacovigilance Guideline of Chinese Patent Medicine, thereby providing methodological references for TCM guideline standardization. Based on the core three stages of the EtD framework (formulating the question, making an assessment of the evidence, and drawing conclusions), critical decision points and evaluation evidence within the evidence-translation process were systematically addressed, aligning with the purpose, scope, and key questions of the guideline. Qualitative research methods, such as the nominal group technique, were employed to formulate recommendations. The analysis was conducted based on the EtD framework. During question formulation, the specific characteristics and practical needs of pharmacovigilance for Chinese patent medicines were clarified, focusing on the core objective of safety assurance throughout the product lifecycle. In the evidence assessment, multi-source evidence was integrated, including policy documents, literature research, and expert consensus, completing the evidence evaluation. Finally, in recommendation-forming, dispersed research evidence and expert experience were synthesized into consensus, culminating in the guideline's completion through solicitation of opinions and peer review. The EtD framework provides a structured tool for evidence-to-decision translation in TCM guideline development, effectively enhancing the transparency and scientific rigor of the process. Therefore, it is recommended that TCM guideline development adopt the EtD framework to improve the evidence-to-decision process with TCM characteristics.
10.Compilation Instruction and Key Point Interpretation for Guidelines for Construction of Traditional Chinese Medicine Pharmacovigilance System in Medical Institutions
Shuoshuo WEI ; Fumei LIU ; Li ZHANG ; Yuanyuan LI ; Zhifei WANG ; Xiaoxiao ZHAO ; Xin CUI ; Ruili WEI ; Shuo YANG ; Yanming XIE ; Lianxin WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):229-237
The Guidelines for Construction of Traditional Chinese Medicine Pharmacovigilance Systems in Medical Institutions (T/CACM 1563.2-2024) were the first special guideline in China to systematically assist medical institutions in establishing a pharmacovigilance system tailored to the characteristics of traditional Chinese medicine (TCM). This guideline was jointly developed with 23 authoritative medical and research institutions in China, under the lead of the Institute of Basic Clinical Medicine, China Academy of Chinese Medical Sciences. The purpose of this guideline was to standardize pharmacovigilance work throughout the entire lifecycle of TCM (including research and development, marketing, and application) and to establish a four-dimensional framework of "organizational structure, institutional system, information platform, and vigilance activities". Key components included the establishment of a TCM Safety Committee, the construction of nine core systems, the development of an information platform that complies with International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use (ICH) E2B standards, alongside the risk monitoring, identification, assessment, and control during clinical trials and post-marketing phases. Therefore, this guideline filled a significant gap in the systemic standards for TCM safety management within medical institutions. Strictly adhering to domestic and international laws and regulations, the guideline compilation involved multiple rounds of expert interviews, systematic evidence integration, and broad consensus. This guideline was specified to be applicable to medical institutions at all levels, primarily addressing core issues, including the difficulty in adverse reaction identification, low reporting rates, and incomplete risk management chains due to the complex composition and diverse application of TCM. The compilation process was scientific and rigorous, ensuring alignment with current national laws and regulations, and was registered internationally. In the future, implementation will be promoted through standardized training, tiered dissemination, as well as a post-effect evaluation and dynamic revision mechanism starting two years after publication. All these aimed to enhance medical institutions' proactive capabilities in preventing and controlling TCM safety risks, ensure patient medication safety, and promote the high-quality development of TCM.

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