1.Exploring on Quality Evaluation Methods of Clinical Case Reports in Traditional Chinese Medicine Based on China Clinical Cases Library of Traditional Chinese Medicine
Kaige ZHANG ; Feng ZHANG ; Bo ZHOU ; Haimin CHEN ; Yong ZHU ; Changcheng HOU ; Liangzhen YOU ; Weijun HUANG ; Jie YANG ; Guoshuang ZHU ; Shukun GONG ; Jianwen HE ; Yang YE ; Yuqiu AN ; Chunquan SUN ; Qingjie YUAN ; Buman LI ; Xingzhong FENG ; Kegang CAO ; Hongcai SHANG ; Jihua GUO ; Xiaoxiao ZHANG ; Zhining TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):271-276
As the core vehicle for preserving and transmitting traditional Chinese medicine(TCM) academic thought and clinical experience, the establishment of a robust quality evaluation system for TCM clinical case reports is a crucial component in the current standardization and modernization of TCM. Based on the practical experience of constructing the China Clinical Cases Library of Traditional Chinese Medicine by the China Association of Chinese Medicine, this study conducted a comprehensive analysis of critical challenges, including insufficient authenticity and unfocused evaluation criteria. It proposed a three-dimensional evaluation framework grounded in the structure-process-outcome logic, encompassing three dimensions of authenticity and standardization, characteristics and advantages, application and translational impact. This framework integrated 12 key evaluation indicators in a systematic manner. The model preserved the academic characteristics of TCM syndrome differentiation and treatment, while aligning with modern scientific research standards, achieving a balance between individualized TCM experience and standardized evaluation. Concurrently, this study provided theoretical foundations and methodological guidance for evaluating the quality of TCM clinical cases, contributing significantly to the inheritance of TCM knowledge, evidence-based practice, and the reform of talent evaluation mechanisms.
2.The Role of Lysosomal Dysfunction in Hepatocellular Carcinoma: From Pathogenesis to Targeted Therapies
Yue-Yan WU ; Xin CHEN ; Ce-Fan ZHOU ; Jing-Feng TANG ; Rui ZHANG
Progress in Biochemistry and Biophysics 2026;53(3):609-622
Hepatocellular carcinoma (HCC) is a lethal cancer with high morbidity rates worldwide. It is a major threat to public health in China, due to the combination of known and new risk factors, such as endemic hepatitis B virus (HBV), dietary aflatoxin exposure, and the occurrence of metabolic dysfunction-associated steatotic liver disease (MASLD). Although many methods for surveillance and multimodal therapies, such as surgery, local ablation, transarterial therapy, and new systemic agents, have been available, the survival rates of HCC remains poor. They have very limited durable responses, long post-treatment recurrence rates, and high resistance to treatment. This reflects an imperfect picture of the biological cause of the disease and a need for new mechanistic or targeted techniques. A significant characteristic of HCC, in common with other aggressive cancers, is the presence of reprogrammed, hyperactive cell metabolism. Tumor cells hijack metabolic pathways to promote their uncontrolled growth, stress survival, invasion and metastasis. While classical mechanisms such as the Warburg effect, lipid metabolism and glutamine utilization have been understood, the lysosome, which was once viewed as a static “waste disposal unit” to remove old organelles and proteins, is instead a dynamic signaling and metabolic core. The lysosomes incorporate nutrients, energy and stress signals by master regulators such as mTORC1 (activated on its surface) that balance anabolic growth and catabolic recycling to the cellular demands. In HCC, lysosomes are not passive, but are highly active and dysregulated. HCC cells upregulate lysosomes, which scavenge intracellular components via enhanced autophagy and engulf extracellular proteins via macropinocytosis, crucial for survival in the nutrient-poor, hypoxic tumor microenvironment. In addition to metabolism, lysosomes exhibit pro-invasive functions by secreting hydrolases to remodel the extracellular matrix, promote angiogenesis, and suppress stromal immune cells to foster a pro-tumor microenvironment. In a clinical context, lysosomes play an important role in therapeutic resistance: they sequester and inactivate chemotherapeutics via lysosomal sequestration, and enhanced autophagic flux protects the cell from therapy-induced damage, contributing to relapse, as lysosomal dysfunction is a key cause of treatment failure. This makes lysosomes promising yet challenging therapeutic targets in HCC. Recent preclinical and early clinical studies investigate multiple strategies to exploit the susceptibility of lysosomes: lysosome-specific agents, alkalinizing the lysosome lumen or inducing membrane permeabilization and lysosome-dependent cell death; pharmacological inhibition of key lysosomal enzymes or autophagy to impair nutrient recycling and stress adaptation; smart nanotherapeutic agents or antibody-drug conjugates, specifically activated in the acidic lysosomal environment or utilizing lysosomal pathways for efficient intracellular drug release; and combination strategies of lysosome-targeting agents with tyrosine kinase inhibitors or immunotherapy to overcome resistance and achieve synergistic antitumor effects. In summary, our review systematically presents the role of lysosomes in HCC, from metabolic reprogramming and microenvironmental adaptation to therapeutic resistance. By synthesizing the latest mechanistic insights and preclinical advances, this review highlights the indispensable role of lysosomes in the complex HCC biological network, emphasizing that an in-depth understanding of this dynamic organelle holds great promise for developing innovative, targeted therapies, offering new hope for improving the poor prognosis of global HCC patients.
3.Guidelines for standardized implementation of pharmacist-managed clinics (2026 edition)
Pengxiang ZHOU ; Maobai LIU ; Xiaoli DU ; Xiaoyang LU ; Mei DONG ; Rong DUAN ; Ruigang HOU ; Xiaoyu LI ; Qi CHEN ; Yanxiao XIANG ; Weiyi FENG ; Rong CHEN ; Deshi DONG ; Yong YANG ; Li LI ; Xiaocong ZUO ; Jinfang HU ; Hongliang ZHANG ; Qingchun ZHAO ; Qi LIN ; Yang HU ; Jiaying WU ; Rongsheng ZHAO
China Pharmacy 2026;37(9):1105-1112
OBJECTIVE To formulate Guidelines for the standardized implementation of pharmacist-managed clinics ( 2026 edition ) in response to the challenges faced by such clinics in China, including uneven development, large discrepancies in service specifications, insufficient patient awareness, and limited medical insurance coverage. METHODS Led by the Pharmaceutical Affairs Professional Committee of the Chinese Hospital Association, the Evidence-based Pharmacy Professional Committee of the Chinese Pharmaceutical Association, and the Hospital Pharmacy Professional Committee of the Cross-strait Medical and Health Exchange Association, a total of 19 domestic hospital pharmacy experts were organized. Through a systematic review of national policies and literature research, current practical experience was summarized. Consensus on the contents of the guidelines was reached after in-depth discussions. RESULTS &CONCLUSIONS The guidelines covered five sections: definition and connotation of pharmacist-managed clinics, establishment requirements, implementation and management, post competency, and practical research. Firstly, the definition and connotation included three operational forms of pharmacist-managed clinics (independent mode, physician-pharmacist joint mode, and online pharmacist-managed clinic mode) and classified service modes (specialty-specific, drug-specific, and disease-specific pharmacist-managed clinics). The establishment requirements were further refined, covering system construction (pharmaceutical service management system, quality control and assessment mechanism), personnel qualifications (professional credentials, continuing education and professional training, etc), service recipients, as well as service venues and facilities. Subsequently, the implementation and management of pharmacist-managed clinics were proposed, involving service procedures, intervention measures, documentation and records, patient education and follow-up, humanistic care, as well as risk management and quality control. Finally, post competency encompassed the competency requirements for pharmacists providing services in pharmacist-managed clinics, as well as the suggestions on teaching methods; practical research encouraged the conduct of high-quality pharmaceutical practice in the setting of pharmacist-managed clinics. The guidelines provide valuable guidance for the standardized implementation of pharmacist-managed clinics in China in terms of establishment, management, teaching, and research, fill the guideline gap in this field, and can promote the high-quality development of pharmacist-managed clinics.
4.Herbal Textual Research on Bambusae Succus in Famous Classical Formulas
Yu SHI ; Feng ZHOU ; Yihan WANG ; Yanmeng LIU ; Ming YANG ; Zhiping CHEN ; Jiangshan ZHANG ; Conglong XU ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):231-239
This article systematically reviews and examines the historical evolution of Bambusae Succus as a medicinal material, covering aspects such as nomenclature, origin, geographical distribution, harvesting and processing methods, quality assessment, therapeutic effects and indications, by consulting ancient herbal texts, medical compendia, and modern literature. The aim is to provide a reference for the development and utilization of famous classical formulas containing this herb. Research indicated that Bambusae Succus was first documented in the Shennong Bencaojing during the Han dynasty, with Zhuli being the standard name used throughout history, alongside aliases like Zhuzhi, Zhuyou and Huoquan. Historically, the primary source of Bambusae Succus has been Phyllostachys nigra var. henonis(Danzhu), although other species such as Pleioblastus amarus and Bambusa emeiensis have also been used medicinally. Ancient records predominantly noted its origin in Yizhou(present-day Chengdu and surrounding areas in Sichuan) and the Wuling region(between present-day Hunan, Guangdong, Guangxi and Jiangxi provinces), while contemporary sources are mainly from regions south of the Yangtze River and southwestern China. Traditionally, Bambusae Succus was harvested from bamboo that had grown for exactly one year, today, it can be collected year-round without strict age requirements. Ancient preparation methods included direct fire roasting or dry distillation, whereas modern industrial production employs dry distillation, reflux extraction, and percolation. In terms of quality evaluation, ancient texts considered a sweet taste to be superior, while today, clarity and transparency are prioritized. Historically, Bambusae Succus was characterized as sweet and cold nature, targeting the lung and stomach meridians, with uses evolving from clearing heat and resolving phlegm to nourishing Yin, moistening dryness, and relaxing tendons and unblocking meridians. Modern descriptions classify it as sweet, bitter, and cold in nature, affecting the heart, liver, and lung meridians, with functions including clearing heat, resolving phlegm, and facilitating orifices. It is indicated for conditions such as stroke with phlegm confusion, lung heat with phlegm congestion, convulsions, epilepsy, excessive phlegm in febrile diseases, high fever with thirst, irritability during pregnancy, and tetanus, with more clearly defined applications. Based on the results of the research, it is recommended that when developing and utilizing famous classical formulas containing Bambusae Succus, the one-year-old Phyllostachys nigra var. Henonis, which has been highly praised throughout history, should be selected as the source material. Industrial production should adopt the dry distillation method. Furthermore, in-depth research should be conducted on the modern technological characterization of the traditional quality control indicator of sweet taste, and reasonable modern quality control standards should be established.
5.Discussion on Construction of a Multi-Agent "Cross-scale" Collective Decision-making Model for Superior Disease Entities in Sichuan-style Traditional Chinese Medicine
Qiuping CHEN ; Hang ZHOU ; Dan ZHENG ; Baixue LI ; Chenhao LIU ; Ju CHEN ; Jibin LIU ; Quansheng FENG ; JIANGYUMING ; Cen JIANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(14):1-13
At present, the systematic excavation of the clinical experience and academic thought of the Sichuan school of Chinese medicine vis-à-vis its dominant disease entities remains fragmentary, and replicable paradigms are scarce. Confronted with empirical fragmentation, data heterogeneity and decision-making subjectivity, the standardised distillation, inheritance and clinical translation of these distinctive experiences has become a critical bottleneck constraining the development of the Sichuan school. The integration of artificial-intelligence technologies in data processing, pattern recognition and intelligent decision-making has rendered deep mining of traditional Chinese medicine(TCM) clinical knowledge and patterns imperative. Constructing an intelligent modern TCM diagnostic-therapeutic-evaluative system is now the obligatory route for inheritance and innovation in Chinese medicine, and simultaneously provides a technological breakthrough for intelligent decision paradigms in the dominant diseases of the Sichuan school. Accordingly, this study adopts the regional academic school as its point of entry, focuses on the dominant diseases of the Sichuan school, and proposes an innovative pathway of "four-dimensional data-multi-modal fusion-multi-agent decision-making". Specifically, four data dimensions are defined and instantiated: (Ⅰ) knowledge from classical medical literature and historical case records. (Ⅱ) objective four-diagnosis phenotypic data. (Ⅲ) master physicians' prescribing regularities. (Ⅳ) characteristic mechanisms of renowned formulae. Leveraging multi-modal data fusion and generative artificial intelligence, the entire causal chain of Famous Physicians and Renowned Formulas is explicated to reconstruct the diagnostic-therapeutic cognitive logic of the regional school. Finally, a multi-agent collective-decision model is established and refined for the dominant diseases of the Sichuan school, capable of generating precise, individualised treatment regimens and thereby advancing an intelligent diagnostic-therapeutic paradigm that delivers more efficient and accurate clinical decision support.
6.Treatment Modalities and Long-Term Outcomes in Unruptured Vertebrobasilar Fusiform Aneurysms: A Nationwide Observational Cohort Study
Linggen DONG ; Dachao WEI ; Xiheng CHEN ; Mingtao LI ; Yang ZHAO ; Yong SUN ; Qingbin NIE ; Jun FENG ; Guomin XIAO ; Jinghua ZHOU ; Shengli HU ; Lifei FENG ; Lifeng QI ; Hongen LIU ; Geng GUO ; Yufang LI ; Renfu TIAN ; Jianghua YU ; Dianshi JIN ; Liang HAO ; Tian TIAN ; Shizhong ZHANG ; Yang WANG ; Liping LIU ; Ming LV
Journal of Stroke 2026;28(2):250-262
Background:
and Purpose Vertebrobasilar fusiform aneurysms (VBFAs) carry substantial morbidity and mortality, but optimal management for unruptured VBFAs remains unclear. We compared the safety and efficacy of conservative management (CM), stent-assisted coiling (SAC), and flow diverters (FDs) in patients with unruptured VBFAs, focusing on long-term prognosis.
Methods:
This study included data from a nationwide Chinese cohort of patients with vertebrobasilar dissecting aneurysms. Inverse probability of treatment weighting (IPTW) balanced confounders across groups. The primary outcome was poor prognosis (modified Rankin Scale score >2). Secondary outcomes included aneurysm rupture, ischemic stroke, compression symptoms, and VBFA-related deaths. Logistic regression estimated odds ratios (ORs) and 95% confidence intervals (CIs). Subgroup and sensitivity analyses were performed.
Results:
Among 1,115 patients with unruptured VBFAs, 838 (median age, 54 years; 655 men) were included. After IPTW, baseline characteristics were balanced. Median follow-up was 54 months. FD was associated with a lower risk of poor prognosis than CM (OR, 0.48 [95% CI, 0.30 to 0.77]; p=0.002), with no difference between CM and SAC. FD also reduced aneurysm rupture (OR, 0.20 [95% CI, 0.07 to 0.60]; p=0.004) and compression symptoms (OR, 0.30 [95% CI, 0.13 to 0.68]; p=0.004) versus CM. Time-to-event analyses further revealed significant differences in vertebral artery lesions and Type I–II VBFAs, whereas no significant differences were observed in basilar or vertebrobasilar junction lesions or in Type III–IV VBFAs.
Conclusions
Compared with CM, FD was associated with improved long-term outcomes in unruptured VBFAs, particularly in vertebral artery lesions and Type I–II VBFAs, although residual confounding cannot be excluded.
7.PRMT1-mediated asymmetric dimethylation of arginine residue 602 in DDX1 promotes cholangiocarcinoma progression
Wenzheng LIU ; Yangwei LIAO ; Yiyang KUAI ; Xin GAO ; Xingmin YAN ; Jingjing LI ; Junsheng CHEN ; Jukun SU ; Jingcong ZHOU ; Yizhu KONG ; Siqin HUANG ; Zhiwei ZHANG ; Feng PENG ; Bing WANG ; Yongjun CHEN
Clinical and Molecular Hepatology 2026;32(2):843-865
Background/Aims:
Cholangiocarcinoma (CCA) is a primary malignant neoplasm with an extremely poor prognosis. While combined chemoradiotherapy has been demonstrated to delay CCA progression to a certain extent, the absence of specific molecular biomarkers or targets significantly hinders the diagnosis and treatment of CCA.
Methods:
Through cross-analysis of proteomics and ADMA modificationomics, we identified DDX1 overexpressed in CCA with elevated R602-ADMA modifications. HPLC-MS/MS identified PRMT1 as the methyltransferase and USP10 as the deubiquitinating enzyme for DDX1. Immunofluorescence and nuclear-cytoplasmic partitioning experiments confirmed DDX1’s nuclear localization. GO and KEGG analyses clarify the biological functions of DDX1 in response to hypoxia. RNA-seq transcriptomics analyzed key pathways influenced by DDX1. A hydrodynamic in situ CCA mouse model was established to validate the chemopreventive effects of the PRMT1-specific inhibitor GSK715 on CCA development.
Results:
DDX1 promotes CCA progression both in vivo and in vitro and can be inhibited by GSK715. Mechanistically, PRMT1 mediates ADMA modification at position R602 of DDX1. This modification promotes DDX1 nuclear localization by recruiting USP10 to deubiquitinate DDX1, while simultaneously inhibiting PRMT1 degradation. DDX1 promotes the transcription of PRMT1 and USP10 by binding to the mRNA 3’UTR region, establishing a positive feedback regulatory pathway. This mechanism promotes the occurrence and development of CCA and can serve as a target for the inhibitor GSK715 to suppress CCA progression.
Conclusions
Our study identified DDX1-R602-ADMA modification as a novel ADMA modification in CCA. It further confirmed its pivotal role in CCA progression. Targeting the USP10-PRMT1-DDX1 axis may represent a significant therapeutic approach for CCA.
8.Methodological Considerations on Constructing Intelligent Diagnosis and Treatment Agent for Integrated Chinese and Western Medicine Diagnosis and Treatment Based on Clinical Practice Guidelines
Feng ZHOU ; Tengfei CHEN ; Wandi ZHANG ; Haoyuan LI ; Xingyu ZONG ; Jiahao LIN ; Qingquan LIU ; Guozhen ZHAO
Journal of Traditional Chinese Medicine 2026;67(17):1853-1857
Developing an intelligent agent for integrated traditional Chinese and western medicine diagnosis and treatment based on clinical practice guidelines is a key approach to advancing the standardization and intelligent deve-lopment of traditional Chinese medicine (TCM) and to supporting clinical decision-making. This paper argues for the necessity of building a knowledge base using guidelines as the sole data source, systematically identifies five core methodological challenges across the entire process, and proposes corresponding solutions. An ontology framework capable of distinguishing between TCM and western medicine concepts should be designed to address the difficulty of knowledge integration. A closed-loop "algorithm-based extraction-expert review" model is adopted to reduce data extraction errors. Expert consensus is incorporated to address decision gaps in specific clinical scenarios outlined in the guidelines, while a multi-stage, standardized output process for the AI system is established to eliminate model hallucinations. Furthermore, an evaluation framework reflecting clinical applicability is developed to enhance the AI system's accuracy and stability. Throughout the research process, it is essential to ensure the in-depth and continuous participation of multidisciplinary experts, strictly control the selection and quality evaluation of guidelines, and rely on the expert consensus method to address decision gaps in the knowledge base. Additionally, continuous validation and iterative optimization of intelligent agents are required to ensure the accuracy and stability of generated outputs. Limitations remain in the mechanisms for real-time knowledge synchronization in intelligent diagnostic and treatment systems, and further validation through large-scale real-world studies is warranted.
9.Sini San Treats Liver Fibrosis by Regulating Polarization of Intrahepatic Kupffer Cells
Yanyu QU ; Qiao GENG ; Zhuxiu ZHOU ; Dongyang ZHENG ; Jianmin YAN ; Huan LIU ; Li CHEN ; Feng ZHANG ; Desong KONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(23):34-46
ObjectiveTo investigate the mechanism by which Sini San (SNS) treats liver fibrosis through regulating the polarization of intrahepatic Kupffer cells. MethodsSixty SPF-grade male Balb/c mice were randomized into blank control, model, silymarin (0.2 g·kg-1), and low-, medium-, and high-dose (2.93, 5.85, 11.70 g·kg-1, respectively) SNS groups. A mouse model of liver fibrosis was induced by intraperitoneal injection of CCl4. After 5 weeks of administration, the body mass, liver pathological changes [Hematoxylin and Eosin (HE), Masson, and Sirius red staining], serum biochemical indicators [alkaline phosphatase (ALP), aspartate aminotransferase (AST), and alanine aminotransferase (ALT)], liver fibrosis markers [procollagen type Ⅲ (PCⅢ), laminin (LN), and hyaluronic acid (HA)], inflammatory cytokines [interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and interleukin-10 (IL-10)], and fibrosis-related proteins [α-smooth muscle actin (α-SMA), collagen type Ⅰ (Col Ⅰ), and collagen type Ⅲ (Col Ⅲ)] were assessed. A co-culture system of THP-1 cells (M1 macrophages) and human hepatic stellate cells (LX-2) was established. The cell experiment was designed with blank control (LX-2 alone), model (LX-2 + M1 macrophages), and low-, medium-, and high-dose SNS (co-culture with 5%, 10%, or 20% SNS-containing serum, respectively) groups. Cell viability, inflammatory cytokines, and macrophage phenotype were examined. Human primary hepatic Kupffer cells were allocated into blank control, M1 (LPS 100 μg·L-1+IFN-γ 20 μg·L-1), M2 (IL-4 20 μg·L-1+IL-13 20 μg·L-1), M1+M2, M1+SNS (supplemented with 10% SNS-containing serum for 2 h after culture under M1 conditions for 24 h), M2+SNS (supplemented with 10% SNS-containing serum for 2 h after culture under M2 conditions for 24 h), and M1+M2+SNS groups (supplemented with 10% SNS-containing serum for 2 h after culture under M1+M2 conditions for 24 h), and the expression of nuclear factor-κB (NF-κB) p65 and signal transducer and activator of transcription 3 (STAT3) at protein and mRNA levels was determined. ResultsCompared with the blank group, the model group exhibited increased serum levels of ALT, AST, ALP, PCⅢ, LN, HA, IL-6, and TNF-α, upregulated protein and mRNA levels of α-SMA, Col Ⅰ, and Col Ⅲ in the liver tissue (P<0.05, P<0.01), and decreased IL-10 level and STAT3 mRNA level (P<0.05, P<0.01), accompanied by marked collagen deposition and inflammatory infiltration in the liver. Compared with the model group, all doses of Sini San reversed these alterations (P<0.05, P<0.01), with the high-dose group showing the most pronounced effects. Cell experiments demonstrated that, compared with the blank control group, the model group had elevated levels of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) and upregulated protein and mRNA levels of M1 markers [cluster of differentiation 86 (CD86, inducible nitric oxide synthase (iNOS), and monocyte chemoattractant protein-1 (MCP-1)] (P<0.01), along with declined level of IL-10 and downregulated expression of M2 markers [(CD163, CD206, and arginase-1 (Arg-1)] (P<0.05,P<0.01). Compared with the model group, treatment with Sini San-containing serum at various concentrations lowered the levels of pro-inflammatory cytokines and expression of M1 markers (P<0.05, P<0.01), while increasing the IL-10 level and M2 marker expression (P<0.05, P<0.01). Additionally, Sini San downregulated the mRNA level of NF-κB and upregulated the mRNA level of STAT (P<0.05, P<0.01). In the experiment with human primary Kupffer cells, compared with the blank group, the M1 group showed increased NF-κB p65 expression (P<0.01) and decreased STAT3 expression (P<0.05), whereas the M2 group exhibited increased STAT3 expression (P<0.01). Compared with the respective model groups, Sini San-containing serum reversed the M1-induced overexpression of NF-κB p65 (P<0.05, P<0.01) and further enhanced the M2-induced STAT3 expression (P<0.05, P<0.01). ConclusionSini San can inhibit the NF-κB p65/STAT3 signaling pathway and repolarize intrahepatic Kupffer cells from the pro-inflammatory M1 to the anti-inflammatory M2 phenotype to attenuate inflammation and suppress hepatic stellate cell activation and collagen deposition, thereby exerting anti-fibrotic effect.
10.Effect of Wenyang Shengji Ointment (温阳生肌膏) on MGO Content and HIF-1a/VEGF Pathway in Wound Tissue of Diabetic Wound Model Rats with Yin Syndrome
Xinyu HUANG ; Li CHEN ; Yarong DING ; Jun WANG ; Shuihua FENG ; Zhongzhi ZHOU
Journal of Traditional Chinese Medicine 2025;66(4):382-389
ObjectiveTo investigate the possible mechanism of Wenyang Shengji Ointment (温阳生肌膏, WSO) in the treatment of diabetic wounds with yin syndrome. MethodsA total of 24 SD rats were randomly divided into a group (n=6) and modeling group (n=18). The modeling group rats were fed with high-fat diet for 14 days and then were injected intraperitoneally with streptozotocin to induce diabetic model. After steroid injection, full-thickness skin defects were created on the back of the rats to establish a diabetic wound with yin syndrome model. The normal group was fed with regular diet, and full-thickness skin defects were created surgically on the back of the rats. The 18 successfully modeled rats were further divided into three groups, the model group, the WSO group, and the Beifuxin (Recombinant Bovine Basic Fibroblast Growth Factor Gel, BX) group, 6 rats in each group. The WSO group was given the ointment to the wound, the Beifuxin group was givne BX gel, and the normal group and model group was disinfected and treated with saline. All groups had their dressings changed once daily for 14 days. Wound healing was recorded on days 0, 3, 7, and 14, and the wound healing rate was calculated on day 3, 7, and 14. On day 14 after treatment, HE staining was performed to observe the pathological morphology of the wound tissue. Western Blot was used to detect the relative protein levels of hypoxia-inducible factor 1 alpha (HIF-1α) and vascular endothelial growth factor (VEGF). Immunofluorescence was used to measure the fluorescence intensity of HIF-1α in the wound tissue, and ELISA was used to detect the methylglyoxal (MGO) content in the wound tissue. ResultsCompared with the normal group, the model group showed poor wound healing on day 3, 7, and 14, with a low wound healing rate (P<0.01). HE staining showed scab coverage on the wound, with inflammatory cell infiltration and disorganized collagen arrangement. The relative protein levels of VEGF were significantly reduced, while the relative protein levels of HIF-1α and the MGO content significantly increased (P<0.01), and the fluorescence intensity of HIF-1α was enhanced. Compared to the model group, the WSO group and Beifuxin group showed better wound healing on day 3, 7, and 14, with an increased wound healing rate (P<0.01). The wound tissue showed clear and complete epithelial structure, reduced inflammatory cells, mature granulation tissue, and organized collagen arrangement. MGO content was significantly reduced (P<0.01). The relative protein levels of HIF-1α and VEGF both significantly increased in the WSO group, while only VEGF increased in the Beifuxin group (P<0.05 or P<0.01). Compared with the Beifuxin group, the WSO group had a thicker epidermal layer, prominent collagen formation, significantly increased HIF-1α fluorescence expression, reduced MGO content in the wound tissue, and higher relative protein levels of HIF-1α (P<0.05). ConclusionWSO can reduce the accumulation of MGO in diabetic wound tissue with yin syndrome and activate the HIF-1α/VEGF pathway, which could be one of the mechanisms for promoting wound healing.

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