1.Ameliorating Effect of Yifei Tongluo Prescription on Bleomycin-induced Pulmonary Fibrosis in Rats via Regulating NLRP3/Caspase-1/GSDMD Signaling Pathway and Epithelial-mesenchymal Transition
Bowen ZHOU ; Zefeng LI ; Xian MA ; Xuannian LI ; Jingwen WANG ; Fei XU ; Huaman LIU ; Xinhua JIA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):150-159
ObjectiveTo observe the effects of Yifei Tongluo prescription on the NOD-like receptor protein 3 (NLRP3)/Caspase-1/gasdermin D (GSDMD) pathway and epithelial-mesenchymal transition (EMT) in rats with pulmonary fibrosis. MethodsTracheal instillation of bleomycin was conducted to establish a rat model of pulmonary fibrosis. Thirty Sprague-Dawley (SD) rats were randomly divided into a blank group, a model group, a prednisone acetate group (1.17 mg·kg-1), and low- and high-dose Yifei Tongluo prescription groups (10.62 and 21.24 g·kg-1, respectively). Administration started on the 7th day after modeling, once a day for 28 consecutive days. The lung coefficient of each group was calculated. The pathological changes of lung tissues in each group were observed by hematoxylin-eosin (HE) staining and Masson staining. The expression of α-smooth muscle actin (α-SMA) and vimentin in rat lung tissues was detected by immunohistochemistry. The expression of NLRP3 inflammasome, E-cadherin (E-cad), and typeⅠ collagen (ColⅠ) in lung tissues was detected by immunofluorescence. The content of hydroxyproline (HYP), tumor necrosis factor (TNF)-α, interleukin (IL)-18, and IL-1β in rat serum was detected by enzyme-linked immunosorbent assay (ELISA). The mRNA expression levels of NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), IL-1β, and transforming growth factor (TGF)-β1 in rat lung tissues were determined by real-time quantitative polymerase chain reaction (Real-time PCR). The protein expression levels of NLRP3, GSDMD, ASC, and Caspase-1 in rat lung tissues were determined by Western blot. ResultsCompared with the blank group, the model group exhibited a significantly increased lung coefficient (P<0.01) and significantly increased range of pulmonary interstitial inflammation and collagen deposition. In addition, the levels of α-SMA, Vimentin, E-cad, and ColⅠ in lung tissues were significantly increased (P<0.01). The levels of fibrosis- and inflammation-related factors HYP, TNF-α, IL-18, and IL-1β in serum were significantly upregulated (P<0.01). The levels of factors related to the activation of NLRP3 inflammasome in lung tissues, including NLRP3, GSDMD, ASC, Caspase-1, IL-1β, and TGF-β1, were significantly upregulated (P<0.01). Compared with the model group, the Yifei Tongluo prescription groups showed improved lung coefficients. Additionally, the extent of lung inflammation and collagen deposition was significantly reduced. The expression of α-SMA, Vimentin, E-cad, and ColⅠ in lung tissue was significantly decreased (P<0.01). The levels of HYP, TNF-α, IL-18, and IL-1β in serum were significantly reduced (P<0.01). The expression levels of NLRP3, GSDMD, ASC, Caspase-1, IL-1β, and TGF-β1 in lung tissue were also significantly decreased (P<0.01). ConclusionYifei Tongluo prescription can regulate the NLRP3/Caspase-1/GSDMD pathway, down-regulate release of pro-inflammatory and pro-fibrotic cytokines, alleviate NLRP3 inflammasome-mediated pyroptosis and EMT, and thereby improve pulmonary fibrosis in rats.
2.Mechanisms of Anemarrhenae Rhizoma Water Extract in Ameliorating Neuroinflammation in Alzheimer's Disease Model Rats via SIRT1/HMGB1/NF-κB Signaling Pathway
Fei WU ; Yuexia LI ; Qi HUANG ; Tianshi LI ; Chuanshan JIN ; Kai MA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):230-240
ObjectiveTo investigate the therapeutic effects of the Anemarrhenae Rhizoma water extract (AR) on Alzheimer's disease (AD) model rats and to explore its potential underlying mechanisms. MethodsMale rats were intraperitoneally injected with D-galactose (100 mg·kg-1) for 42 days, and on day 14, 1 μL of β-amyloid (Aβ25-35, 2 g·L-1) solution was injected into the hippocampus. Rats were randomly divided into a model group, low-dose AR (0.6 g·kg-1), medium-dose AR (1.2 g·kg-1), high-dose AR (2.4 g·kg-1), and a positive control group (donepezil, 5 mg·kg-1). Healthy rats receiving only a hippocampal injection of 1 μL of sterile saline served as the sham-operated group. From day 21, rats in the treatment groups were administered the corresponding drugs by gavage once daily for 21 consecutive days, while the blank control and model groups received an equal volume of saline. Learning and memory abilities were assessed using the Morris water maze. Brain tissue damage was observed by hematoxylin and eosin (HE) staining, and neuronal apoptosis was evaluated by terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) staining. Levels of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and interleukin-10 (IL-10) in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA). BV2 microglial cells were co-cultured with Aβ25-35 (40 μmol·L-1) for 2 h, and cell viability was determined by the CCK-8 assay to screen the optimal concentration of AR-containing serum (S-AR). Cells were divided into blank control, Aβ25-35, S-AR, EX527 [silent information regulator 1 (SIRT1) inhibitor], and S-AR+EX527 groups. Immunofluorescence staining was used to detect the expression of CD16, CD206, and high-mobility group box 1 (HMGB1). Western blot analysis was performed to measure the protein expression of CD16, inducible nitric oxide synthase (iNOS), CD206, arginase (Arg), and proteins related to the SIRT1/HMGB1/nuclear factor-κB (NF-κB) signaling pathway. ResultsIn vivo experiments showed that, compared with the sham-operated group, the model group exhibited reduced platform crossings and time spent in the target quadrant (P<0.01), prolonged escape latency, increased hippocampal neuronal apoptosis (P<0.01), and obvious hippocampal damage. The expression levels of IL-6, TNF-α, IL-10, CD16, and iNOS in brain tissues were significantly elevated (P<0.01), while CD206 and Arg protein expression showed an increasing trend without statistical significance. Compared with the model group, all AR-treated groups significantly increased platform crossings and target quadrant time (P<0.05, P<0.01), alleviated hippocampal damage, reduced escape latency and neuronal apoptosis, downregulated the expression of TNF-α, IL-6, CD16, and iNOS (P<0.05, P<0.01), and upregulated the expression of IL-10, CD206 and Arg (P<0.05, P<0.01). In vitro experiments demonstrated that, compared with the blank control group, the Aβ25-35 group showed increased fluorescence intensity of CD206, CD16, and HMGB1, as well as elevated protein expression of iNOS and CD16 (P<0.01), while CD206 and Arg protein expression exhibited an increasing trend without statistical significance. After S-AR intervention, CD206 fluorescence intensity and the protein expression of Arg and CD206 were significantly increased (P<0.01), whereas the fluorescence intensity of CD16 and HMGB1 and the protein expression of iNOS and CD16 were significantly decreased (P<0.01). These effects were reversed by EX527 (P<0.05, P<0.01). Furthermore, compared with the blank control group, the Aβ25-35 group showed significantly increased cytoplasmic HMGB1 expression and p-p65/p65 ratio (P<0.01), along with significantly decreased SIRT1 and nuclear HMGB1 expression (P<0.01). In contrast, the S-AR group exhibited opposite trends compared with the Aβ25-35 group, and the regulatory effects of S-AR on these proteins were reversed by EX527 (P<0.01). ConclusionAR exerts neuroprotective effects in AD model rats by regulating microglial polarization and alleviating neuroinflammation, potentially through modulation of the SIRT1/HMGB1/NF-κB signaling pathway.
3.Relevant Mechanism of Traditional Chinese Medicine in Treatment of Hyperandrogenism in Polycystic Ovary Syndrome: A Review
Wenchen FAN ; Hui MA ; Yongfen DING ; Haotian MA ; Fei GAO ; Qiuyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):306-317
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder among women of reproductive age. Hyperandrogenism (HA), one of its core pathological features, is closely associated with the clinical manifestations and metabolic complications of the disease. Current western medical treatments for PCOS-HA mainly include anti-androgen therapy and ovulation induction, such as short-acting oral contraceptives like Diane-35 and Yasmin. However, long-term use of these medications may result in adverse reactions like increasing the risk of liver dysfunction and exacerbating lipid metabolism disorders, with unsatisfactory long-term efficacy when used alone. Traditional Chinese medicine offers unique advantages in the treatment of PCOS-HA due to its holistic approach and multi-target regulatory mechanisms. In the view of traditional Chinese medicine, PCOS-HA is classified under the categories such as "delayed menstruation", "amenorrhea", and "infertility", with kidney deficiency as the root, as well as liver stagnation and spleen deficiency as the manifestations. Phlegm and blood stasis are considered to be intertwined throughout the disease course. Modern studies have shown that traditional Chinese medicine is significantly effective in improving the androgen levels, restoring ovulation, and improving insulin resistance in PCOS-HA patients. Representative prescriptions, such as Erxian Tang, Jiawei Xiaoyaosan, Guizhi Fulingwan, and Cangfu Daotantang, exert therapeutic effects through various mechanisms including regulation of the hypothalamic-pituitary-ovarian axis, reduction of ovarian androgen synthase activity, improvement of insulin signaling pathways, and inhibition of inflammation and oxidative stress, which demonstrates the characteristics of comprehensive treatment with traditional Chinese medicine. Based on the perspectives of etiology and pathogenesis of traditional Chinese medicine, modern medical cognition, typical prescriptions, and action mechanisms, this paper reviewed the research progress of traditional Chinese medicine in the treatment of PCOS-HA, aiming to provide a reference for in-depth research and clinical applications in this field.
4.Relevant Mechanism of Traditional Chinese Medicine in Treatment of Hyperandrogenism in Polycystic Ovary Syndrome: A Review
Wenchen FAN ; Hui MA ; Yongfen DING ; Haotian MA ; Fei GAO ; Qiuyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):306-317
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder among women of reproductive age. Hyperandrogenism (HA), one of its core pathological features, is closely associated with the clinical manifestations and metabolic complications of the disease. Current western medical treatments for PCOS-HA mainly include anti-androgen therapy and ovulation induction, such as short-acting oral contraceptives like Diane-35 and Yasmin. However, long-term use of these medications may result in adverse reactions like increasing the risk of liver dysfunction and exacerbating lipid metabolism disorders, with unsatisfactory long-term efficacy when used alone. Traditional Chinese medicine offers unique advantages in the treatment of PCOS-HA due to its holistic approach and multi-target regulatory mechanisms. In the view of traditional Chinese medicine, PCOS-HA is classified under the categories such as "delayed menstruation", "amenorrhea", and "infertility", with kidney deficiency as the root, as well as liver stagnation and spleen deficiency as the manifestations. Phlegm and blood stasis are considered to be intertwined throughout the disease course. Modern studies have shown that traditional Chinese medicine is significantly effective in improving the androgen levels, restoring ovulation, and improving insulin resistance in PCOS-HA patients. Representative prescriptions, such as Erxian Tang, Jiawei Xiaoyaosan, Guizhi Fulingwan, and Cangfu Daotantang, exert therapeutic effects through various mechanisms including regulation of the hypothalamic-pituitary-ovarian axis, reduction of ovarian androgen synthase activity, improvement of insulin signaling pathways, and inhibition of inflammation and oxidative stress, which demonstrates the characteristics of comprehensive treatment with traditional Chinese medicine. Based on the perspectives of etiology and pathogenesis of traditional Chinese medicine, modern medical cognition, typical prescriptions, and action mechanisms, this paper reviewed the research progress of traditional Chinese medicine in the treatment of PCOS-HA, aiming to provide a reference for in-depth research and clinical applications in this field.
5.Effect of different exercise interventions on patients with metabolic dysfunction-associated fatty liver disease: A systematic review and network Meta-analysis
Guodong MA ; Zhuojing SUN ; Song HU ; Zijun YE ; Mingchen MA ; Fei CUI ; Jiaju ZHU
Journal of Clinical Hepatology 2026;42(2):326-344
ObjectiveTo investigate the effect of different exercise interventions on metabolism and liver parameters in patients with metabolic dysfunction-associated fatty liver disease (MAFLD), and to provide evidence-based recommendations for clinical exercise rehabilitation. MethodsThis study was conducted according to the PRISMA guidelines, and the protocol was registered on the PROSPERO platform, with a registration number of CRD42025641717. PubMed, Web of Science, Scopus, Wiley Online Library, CNKI, Wanfang Data, and VIP were searched for related articles published up to September 2024. The Cochrane tool for assessing risk of bias was used to assess the quality of articles, and Stata MP 17.0 was used to perform the network meta-analysis. ResultsA total of 57 articles were included, involving 2 648 patients. The results showed that aerobic exercise combined with resistance exercise had the best effect in improving body mass index (mean difference [WMD]=-0.97, 95% confidence interval [CI]: -1.66 to -0.28], P<0.05, surface under the cumulative ranking curve [SUCRA]=85.4) and triglycerides (WMD=-29.6, 95%CI: -46.66 to 12.54, P<0.05, SUCRA=87.3); resistance exercise was the optimal intervention method for improving total cholesterol (WMD=-15.99, 95%CI: -24.19 to -7.79, P<0.05, SUCRA=79.9) and glutamine transaminase (WMD=-8.08, 95%CI: -12.13 to -4.02, P<0.05, SUCRA=87.3); low-intensity aerobic exercise had the best effect in improving aspartate aminotransferase (WMD=-4.3, 95%CI: -8.45 to -0.15, P<0.05, SUCRA=73.5), gamma-glutamyl transpeptidase (GGT) (WMD=-3.26, 95%CI: -7.79 to 1.27, P>0.05, SUCRA=82.3), and glycated hemoglobin (HbA1c) (WMD=-0.6, 95%CI: -2.02 to 0.82, P>0.05, SUCRA=78.8); moderate-intensity aerobic exercise was the optimal intervention modality to improve Homeostasis Model Assessment of Insulin Resistance (WMD=-0.92, 95%CI: -1.51 to -0.33, P<0.05, SUCRA=69.4). It should be noted that there were no significant differences in HbA1c and GGT across different exercise interventions (all P>0.05), suggesting that there was currently no sufficient statistical evidence to support that exercise could improve these two indicators. ConclusionBased on the comprehensive league table and cumulative probability ranking, aerobic exercise combined with resistance exercise, resistance exercise, and low- and moderate-intensity aerobic exercise may be the best exercise modality for improving key indicators in MAFLD patients, and targeted exercise modalities should be selected for intervention against different indicators; however, due to limitations of the original studies, further studies are needed for validation and exploration.
6.Analysis of risk factors for sodium valproate-induced hyperammonemia in neurocritical patients and construction of risk prediction model
Wan XU ; Jin WU ; Jiaojiao MAO ; Jingjing MA ; Yao FEI
China Pharmacy 2026;37(8):1039-1044
OBJECTIVE To investigate the risk factors for sodium valproate (VPA)-induced hyperammonemia in neurocritical patients, and to construct a risk prediction model. METHODS Clinical data were retrospectively collected from 172 neurocritical patients who received VPA treatment in the Department of Critical Care Medicine, the Fourth Affiliated Hospital of Soochow University from January 2022 to June 2025. Patients were divided into the hyperammonemia group (73 cases) and the normal group (99 cases) based on their blood ammonia levels. Univariate analysis and LASSO regression analysis were used to screen for predictive variables. Independent factors were identified through multivariate Logistic regression analysis, and a nomogram was constructed accordingly. The performance of the model was evaluated using receiver operating characteristic (ROC) curve, calibration curve, and decision curve analysis (DCA). RESULTS Combination of univariate analysis and LASSO regression analysis screened out seven predictive variables: body mass index (BMI)≥24.0 kg/m 2 , concomitant use of benzodiazepines, VPA blood concentration, hemoglobin, serum urea, average daily VPA dose, and albumin. Multivariate Logistic regression analysis showed that concomitant use of benzodiazepines, BMI≥24.0 kg/m 2 , VPA blood concentration, albumin and serum urea level (with odds ratios of 1.615, 1.538, 1.623, 1.942 and 0.637, respectively; 95% confidence intervals of 1.128-2.359, 1.059-2.251, 1.112-2.431, 1.106-3.598 and 0.402-0.980, respectively) were all significantly associated with VPA-induced hyperammonemia in neurocritical patients ( P <0.05). The nomogram prediction model constructed based on these variables was evaluated, showing that the area under the ROC curve was 0.810 for the test set and 0.844 for the validation set. The calibration curves closely approximated t he actual curves, and the application of this model could improve the clinical net benefit. CONCLUSIONS Concomitant use of benzodiazepines, BMI≥24.0 kg/m 2 , high VPA blood concentration and high albumin level are independent risk factors for VPA-induced hyperammonemia in neurocritical patients, while high serum urea level is an independent protective factor. The risk prediction model constructed based on these factors exhibits good discrimination, consistency, and clinical applicability, making it applicable for predicting the risk of VPA-induced hyperammonemia in neurocritical patients.
7.Mechanism of Lijin manipulation regulating scar formation in skeletal muscle injury repair in rabbits
Kaiying LI ; Xiaoge WEI ; Fei SONG ; Nan YANG ; Zhenning ZHAO ; Yan WANG ; Jing MU ; Huisheng MA
Chinese Journal of Tissue Engineering Research 2025;29(8):1600-1608
BACKGROUND:Lijin manipulation can promote skeletal muscle repair and treat skeletal muscle injury.However,the formation of fibrosis and scar tissue hyperplasia are closely related to the quality of skeletal muscle repair.To study the regulatory effect of Lijin manipulation on the formation of fibrosis and scar tissue hyperplasia is helpful to explain the related mechanism of Lijin manipulation to improve the repair quality of skeletal muscle injury. OBJECTIVE:To explore the mechanism of Lijin manipulation to improve the repair quality of skeletal muscle injury in rabbits,thereby providing a scientific basis for clinical treatment. METHODS:Forty-five healthy adult Japanese large-ear white rabbits were randomly divided into blank group,model group and Lijin group,with 15 rats in each group.Gastrocnemius strike modeling was performed in both model group and Lijin group.The Lijin group began to intervene with tendon manipulation on the 3rd day after modeling,once a day,and 15 minutes at a time.Five animals in each group were killed on the 7th,14th and 21st days after modeling.The morphology and inflammatory cell count of gastrocnemius were observed by hematoxylin-eosin staining,the collagen fiber amount was observed by Masson staining,the expression of interleukin-6 and interleukin-10 in gastrocnemius was detected by ELISA.The protein and mRNA expressions of paired cassette gene 7,myogenic differentiation factor,myoblastogenin,alpha-actin,transforming growth factor beta 1,and type Ⅰ collagen were detected by western blot and RT-PCR,respectively,and the expression of type Ⅰ collagen protein was detected by immunohistochemistry. RESULTS AND CONCLUSION:Hematoxylin-eosin staining and Masson staining showed that compared with the model group,inflammatory cell infiltration and collagen fiber content decreased in the Lijin group(P<0.01),and the muscle fibers gradually healed.ELISA results showed that compared with the model group,the expression of interleukin-6 in the Lijin group continued to decrease(P<0.05),and the expression of interleukin-10 increased on the 7th day after modeling(P<0.05)and then showed a decreasing trend(P<0.05).Western blot and RT-PCR results showed that compared with the model group,the protein and mRNA expressions of paired cassette gene 7,myogenic differentiation factor,myoblastogenin in the Lijin group were significantly increased on the 14th day after modeling(P<0.05),but decreased on the 21st day(P<0.05);the protein and mRNA expressions of alpha-actin,transforming growth factor beta 1,and type Ⅰ collagen in the Lijin group were significantly decreased compared with those in the model group(P<0.05).Immunohistochemical results showed that the expression of type Ⅰ collagen in the Lijin group was significantly lower than that in the model group(P<0.05).To conclude,Lijin manipulation could improve the repair quality of skeletal muscle injury by inhibiting inflammation,promoting the proliferation and differentiation of muscle satellite cells,and reducing fibrosis.
8.Establishment and analysis of chronic rejection model of mouse heart transplantation
Wei ZHANG ; Qingrong ZHANG ; Maolin MA ; Qianghua LENG ; Fei HAN
Organ Transplantation 2025;16(1):99-105
Objective To establish a chronic rejection (CR) model of mouse heart transplantation and analyze its characteristics. Methods Allogeneic BALB/c and C57BL/6 mice were used as donor and recipient for heart transplantation, and intraperitoneal injection of cytotoxic T lymphocyte-associated antigen 4-immunoglobulin (CTLA4-Ig) was given 1 and 2 days after surgery. Graft survival time, donor specific antibody (DSA) level, graft pathology and inflammatory cell infiltration were observed. Results In allogeneic transplantation model, graft survival time was prolonged after CTLA4-Ig treatment [(28.2±4.1) d vs. (7.0±0.7) d, P < 0.01]. The level of serum DSA-IgG increased at 2, 3 and 4 weeks after surgery, while the level of DSA-IgM remained unchanged. Myocardial cell injury, inflammatory cell infiltration, interstitial fibrosis and C4d deposition in capillaries were aggravated 3 weeks after operation and worsened 4 weeks after operation. The infiltrated immune cells were mainly macrophages, T cells and plasma cells. Conclusions Mouse allogeneic heart transplantation combined with CTLA4-Ig successfully establishes a CR model, which provides a basis for subsequent studies on the pathogenesis and intervention of CR.
9.The development and characteristics of general notice in Chinese Pharmacopoeia 2025 Edition
WANG Fei ; SONG Zonghua ; MA Shuangcheng ; SHU Rong
Drug Standards of China 2025;26(1):011-016
Objective: Introduce and briefly describe the status, characteristics, and writing ideas of general notice in the Chinese Pharmacopoeia 2025 edition, providing reference and suggestions for better understanding and implementation of the Chinese Pharmacopoeia 2025 edition.
Methods:This article elaborates on the content and revision of general notice in the Chinese Pharmacopoeia 2025 edition from the perspective of frame structure and main contents.
Results:Compared with other pharmacopoeias of various countries, Chinese Pharmacopoeia includes standards for traditional Chinese medicine, chemical drugs, biological products and excipients, pharmaceutical packaging materials, etc. Each section of Chinese Pharmacopoeia has its own general notice, with 34 to 48 items arranged in 11 to 12 chapters. Depending on the type of products included and the development history, the general notice in each section present differences in format and content. Given the importance and significance of the standards in Chinese Pharmacopoeia, it is necessary for the industry to coordinate and unify the general notice in various parts of Chinese Pharmacopoeia. With the introduction and revision of regulations, changes in the content of pharmacopoeias, and the application of new technologies, methods, and concepts in drug quality control, considering the unique characteristics of various drugs in quality control and supervision, Chinese Pharmacopoeia has comprehensively standardized relevant requirements. While taking into account the characteristics of the first, second, third, and fourth parts of the pharmacopoeia, it retains the characteristics of relative uniformity and the content of each part, achieving the unified standardization of the general rules of each general notice in the Chinese Pharmacopoeia 2025 edition and the coordination and consistency of common content.
Conclusion: The current version of Chinese Pharmacopoeia has undergone significant changes and improvements in both form and content. By introducing the overall situation and revised content of general notice in the Chinese Pharmacopoeia 2025 edition, pharmacopoeia users can have a deeper understanding of Chinese Pharmacopoeia and use it correctly.
10.Urban drinking water quality in Anhui Province in 2014-2022
Yanlong XU ; Lei MA ; Xiaoliang FENG ; Zhiqiang WANG ; Xinmiao SUI ; Fei LI ; Li ZHENG ; Qinghua XU
Journal of Public Health and Preventive Medicine 2025;36(2):35-38
Objective To analyze the urban drinking water quality and its influencing factors in Anhui Province from 2014 to 2022, and to provide a scientific basis for water quality improvement and protection. Methods The data were collected, saved and monitored according to the Standard Test Method for Drinking Water (GB/T5750-2006) and evaluated according to the Hygienic Standard for Drinking Water (GB 5749-2006). Results A total of 20 941 samples were collected, and the overall qualified rate was 84.26%. The qualified rate of urban drinking water increased from 76.9% in 2014 to 93.3% in 2022, and the qualified rate of water quality was on the rise (χ2=544.43, P<0.01). From 2014 to 2022, the qualified rate of water quality in dry season was higher than that in wet season (χ2=35.98, P<0.001), the qualified rate of surface water was higher than that of ground water (χ2=4440.8, P<0.001), and the qualified rate of peripheral tap water was higher than that of factory water (χ2=145.1, P<0.001). Among all kinds of disinfection methods, chlorination disinfection had the highest qualified rate (χ2=1483.8, P<0.001). The qualified rate of water quality increased with the increase of the scale of water plant. Among the inspected indicators, the main unqualified indicators were chlorine dioxide (7.72%), fluoride (7.41%), free residual chlorine (3.90%), and total bacterial count (2.13%). Conclusion The passing rate of urban drinking water quality in Anhui Province is on an upward trend, and the quality of urban drinking water has improved. However, it is still important to pay attention to the problem of excessive microorganism and fluoride in water, and the quality of drinking water varies from place to place.


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