1.Evaluation of public health governance capacity in Zhejiang Province
Haiyan LI ; Ting CHEN ; Chengyue LI ; Huihui HUANGFU ; Wei WANG ; Qunhong SHEN ; Chaoyang ZHANG ; Zheng CHEN ; Chuan PU ; Lingzhong XU ; Anning MA ; Zhaohui GONG ; Tianqiang XU ; Panshi WANG ; Hua WANG ; Chao HAO ; Zhi HU ; Peiwu SHI ; Mo HAO
Shanghai Journal of Preventive Medicine 2026;38(2):153-158
ObjectiveTo systematically assess the public health governance capacity in Zhejiang Province, to conduct an in-depth analysis of its strengths and weaknesses, so as to provide scientific basis and strategic recommendations for further enhancement. MethodsA systematic collection of policy documents, public information reports, and research literature related to public health governance capacity in Zhejiang Province from 2002 to 2023 was conducted (encompassing a total of 1 263 policy documents, 138 pieces of information reports and 631 research articles). Based on the evaluation criteria suitable for public health systems previously developed by the research team, the basic status and magnitude of change in public health governance capacity in Zhejiang Province was evaluated. Additionally, normative gap analyses were employed to identify the strengths and weaknesses. ResultsZhejiang Province ranked 4th nationwide in terms of public health governance capacity with a score of 733.4 points (1 000.0-point maximum). The province has effectively implemented the principle of health first (scoring 698.5 points in the assessment of health-first strategy implementation) and attached sufficient importance to health-related goals (scoring 658.2 points in the scientific rationality of goal setting). However, the implementation of inter-departmental coordination and incentive mechanisms only scored 178.7 points, the feasibility of management and monitoring mechanisms scored even lower at only 144.0 points, and the coverage of incentive mechanisms scored 286.0 points. ConclusionZhejiang Province has effectively implemented its health first strategy and attached great importance to health targets, but still needs to strengthen cross-departmental coordination mechanisms and health-oriented incentives.
2.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
3.From Cathartic Colon to Cathartic-dependent Constipation: Diagnostic-therapeutic Strategies from Integrative Medicine Perspective
Youcheng HE ; Fengru JIANG ; Yanru WANG ; Minghan HUANG ; Yue WU ; Chunyu ZHOU ; Lian MO ; Lifeng WEI ; Keyi PAN ; Shuyu CAI ; Jianye YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):162-172
Both cathartic colon (CC) and cathartic-dependent constipation (CDC) are caused by the abuse of stimulant laxatives, while their concepts are not completely the same.Starting from the disease name of CC, this article traced the origin and evolution of the concept of CC, summarizes and compared the similarities and differences between CC, CDC, and slow transit constipation (STC), and called for strict differentiation among the three.Furthermore, this article explored the specific contents of Western medicine clinical subtypes and traditional Chinese medicine (TCM) syndrome differentiation of CDC and delved into the TCM pathogenesis of CDC according to both literature and clinical practice.The relationship between clinical subtypes and TCM syndromes was established, and the syndrome characteristics of CDC of different clinical subtypes and TCM syndromes were summarized.The recommended prescriptions for corresponding syndromes were listed.A systematic CDC diagnosis and treatment approach of "clinical subtypes-syndrome differentiation-syndrome characteristics-recommended prescriptions" was thus formed.Additionally, the paper provides an overview of current research on CDC in both Western medicine and TCM contexts, identifies future research directions, and suggests research pathways for refining and advancing CDC studies.
4.Clinical Efficacy of Yiqi Yangyin Huoxue Prescription in Treatment of Cathartic Colon and Analysis of Influencing Factors of Disease Severity
Youcheng HE ; Jingyi SHAN ; Fengru JIANG ; Yue WU ; Chunyu ZHOU ; Lu HANG ; Yan ZHOU ; Lian MO ; Shuyu CAI ; Keyi PAN ; Lifeng WEI ; Jianye YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):173-184
ObjectiveTo observe the clinical efficacy of the Yiqi Yangyin Huoxue prescription (YYHP) in the treatment of cathartic colon (CC) and its effects on fecal short-chain fatty acids (SCFAs), and to explore the correlations among CC severity indicators and between these indicators and patient history. MethodsAccording to the inclusion and exclusion criteria, 98 patients meeting the diagnostic criteria of both traditional Chinese and Western medicine for CC with the syndrome of Qi-Yin deficiency complicated by blood stasis were randomly assigned to an observation group and a control group. The observation group received YYHP granules, while the control group received lactulose. Both medications were administered twice daily, one sachet each time, half an hour after breakfast and dinner, with a treatment course of 8 weeks. The primary constipation symptom score, Patient Assessment of Constipation Quality of Life (PAC-QOL) score, and TCM syndrome score were assessed before and after treatment and at the 8th week after the end of treatment. The overall clinical effective rate, as well as the efficacy attenuation index and degree, were evaluated. Fecal SCFA levels were measured using gas chromatography-mass spectrometry (GC-MS). Spearman correlation analysis was performed to explore the correlations among CC severity indicators and between these indicators and patient history. ResultsThe overall clinical effective rate in the observation group (95.83%) was higher than that in the control group (78.72%) (P<0.05). After treatment, the total scores for primary constipation symptoms, PAC-QOL, and TCM syndromes decreased in both groups (P<0.05), with more significant reductions in the observation group (P<0.05). The severity of all primary constipation symptoms was alleviated in both groups (P<0.05). In terms of "excessive straining and difficult defecation", "anal heaviness, incomplete evacuation, and bloating sensation", "abdominal distension", and "defecation frequency", the observation group showed better efficacy than the control group (P<0.05). Scores of the four PAC-QOL dimensions and the scores and severity of primary and secondary TCM symptoms were reduced in both groups (P<0.05), with more significant reductions in the observation group (P<0.05). After treatment, acetic acid, propionic acid, butyric acid, and total SCFAs in the observation group increased significantly (P<0.05). The efficacy attenuation index and degree in the observation group were lower than those in the control group (P<0.05). No severe adverse reactions occurred in either group, and there was no statistically significant difference in the incidence of adverse reactions between the two groups. Positive correlations of varying degrees were observed among the total scores of primary constipation symptoms, PAC-QOL, and TCM syndromes, as well as between these scores and the history of stimulant laxative use, disease duration, and age. ConclusionYYHP can effectively alleviate the primary constipation symptoms in CC patients, improve quality of life, and ameliorate TCM syndromes, with good safety. It also has the advantage of a lower rebound degree after drug withdrawal, and its mechanism may be related to increasing fecal SCFA levels. Long-term abuse of stimulant laxatives may aggravate the severity of CC and prolong the disease course.
5.MCC950 Targeted Inhibition of TXNIP-NLRP3 Axis-mediated Podocyte Pyroptosis in Diabetic Nephropathy
Hong ZHENG ; Zhong-Cheng MO ; Hang LIU ; Xi-Zhang PAN ; Bing WEI
Progress in Biochemistry and Biophysics 2026;53(2):418-430
Diabetic Nephropathy (DN) is the leading cause of end-stage renal disease (ESRD) globally, representing a major global health burden with limited disease-modifying therapies. Podocyte injury serves as the core pathological hallmark of DN, and conventional treatments targeting metabolic disorders or hemodynamic abnormalities fail to reverse the progressive decline of renal function. Accumulating evidence over the past decade has established that high glucose-induced podocyte pyroptosis—a pro-inflammatory form of programmed cell death—is a key driving force in DN progression. Its core molecular mechanism hinges on the activation of the TXNIP-NLRP3 inflammasome axis. Under sustained hyperglycemic conditions, excessive reactive oxygen species (ROS) are generated via pathways including the polyol pathway, advanced glycation end products (AGEs) accumulation, and mitochondrial dysfunction. Concurrently, methylglyoxal (a glucose metabolite) mediates post-translational modification of thioredoxin-interacting protein (TXNIP). These events collectively trigger the dissociation of TXNIP from thioredoxin (TRX), a redox-regulating protein. The free TXNIP then translocates to the mitochondria, where it binds to The NACHT, LRR, and PYD domain-containing protein 3 (NLRP3) and promotes inflammasome assembly. This assembly activates cysteine-aspartic acid protease 1 (caspase-1), which cleaves Gasdermin D (GSDMD) to generate its N-terminal fragment (GSDMD-NT). GSDMD-NT oligomerizes to form membrane pores, leading to podocyte swelling, rupture, and the release of pro-inflammatory cytokines interleukin-1β (IL-1β) and interleukin-18 (IL-18). These cytokines amplify local inflammatory responses, induce mesangial cell proliferation, and accelerate extracellular matrix deposition, ultimately exacerbating glomerulosclerosis. MCC950, a highly selective NLRP3 inhibitor, exerts its therapeutic effects through a multi-layered mechanism: it binds to the NACHT domain (NAIP, CIITA, HET-E and TP1 domain) of NLRP3 with nanomolar affinity, forming hydrogen bonds with key residues (Lys-42 and Asp-166) within the ATP-hydrolysis pocket to block ATP hydrolysis, thereby locking NLRP3 in an inactive conformational state. Additionally, MCC950 interferes with the protein-protein interaction between TXNIP and NLRP3 and regulates mitochondrial homeostasis to reduce ROS production. Preclinical studies have demonstrated that MCC950 dose-dependently reduces proteinuria, restores the expression of podocyte-specific markers (nephrin and Wilms tumor 1 protein, WT1), and alleviates podocyte foot process fusion and glomerulosclerosis in both streptozotocin (STZ)-induced type 1 diabetic models (characterized by absolute insulin deficiency) and db/db type 2 diabetic models (driven by insulin resistance). However, discrepancies in therapeutic outcomes exist across different models—some studies report exacerbated renal inflammation and fibrosis in STZ-induced models—which may stem from differences in disease pathogenesis, intervention timing (early vs. mid-stage disease), and dosing duration. Despite its promising preclinical efficacy, MCC950 faces significant translational challenges, including low oral bioavailability, insufficient podocyte targeting, potential hepatotoxicity, and drug-drug interactions with statins (commonly prescribed to diabetic patients for cardiovascular risk management). Furthermore, off-target effects such as the inhibition of carbonic anhydrase 2 have been identified, raising concerns about its safety profile. Nevertheless, its unique mechanism of action—directly blocking podocyte pyroptosis by targeting the TXNIP-NLRP3 axis—endows it with substantial translational value. In the future, strategies to overcome these barriers are expected to advance its clinical application: targeted delivery via nanocarriers (e.g., PLGA-PEG nanoparticles or nephrin antibody-conjugated systems) to enhance renal accumulation and podocyte specificity; precise patient stratification based on biomarkers such as serum IL-18 and renal TXNIP/NLRP3 expression to identify “inflammatory-phenotype” DN patients most likely to benefit; and combination therapy with sodium-glucose cotransporter 2 (SGLT2) inhibitors—whose metabolic benefits synergize with MCC950’s anti-inflammatory effects. These approaches hold great potential to break through clinical translation bottlenecks, offering a novel, precise anti-inflammatory treatment option for DN and addressing an unmet clinical need for therapies targeting the inflammatory underpinnings of the disease.
6.MCC950 Targeted Inhibition of TXNIP-NLRP3 Axis-mediated Podocyte Pyroptosis in Diabetic Nephropathy
Hong ZHENG ; Zhong-Cheng MO ; Hang LIU ; Xi-Zhang PAN ; Bing WEI
Progress in Biochemistry and Biophysics 2026;53(2):418-430
Diabetic Nephropathy (DN) is the leading cause of end-stage renal disease (ESRD) globally, representing a major global health burden with limited disease-modifying therapies. Podocyte injury serves as the core pathological hallmark of DN, and conventional treatments targeting metabolic disorders or hemodynamic abnormalities fail to reverse the progressive decline of renal function. Accumulating evidence over the past decade has established that high glucose-induced podocyte pyroptosis—a pro-inflammatory form of programmed cell death—is a key driving force in DN progression. Its core molecular mechanism hinges on the activation of the TXNIP-NLRP3 inflammasome axis. Under sustained hyperglycemic conditions, excessive reactive oxygen species (ROS) are generated via pathways including the polyol pathway, advanced glycation end products (AGEs) accumulation, and mitochondrial dysfunction. Concurrently, methylglyoxal (a glucose metabolite) mediates post-translational modification of thioredoxin-interacting protein (TXNIP). These events collectively trigger the dissociation of TXNIP from thioredoxin (TRX), a redox-regulating protein. The free TXNIP then translocates to the mitochondria, where it binds to The NACHT, LRR, and PYD domain-containing protein 3 (NLRP3) and promotes inflammasome assembly. This assembly activates cysteine-aspartic acid protease 1 (caspase-1), which cleaves Gasdermin D (GSDMD) to generate its N-terminal fragment (GSDMD-NT). GSDMD-NT oligomerizes to form membrane pores, leading to podocyte swelling, rupture, and the release of pro-inflammatory cytokines interleukin-1β (IL-1β) and interleukin-18 (IL-18). These cytokines amplify local inflammatory responses, induce mesangial cell proliferation, and accelerate extracellular matrix deposition, ultimately exacerbating glomerulosclerosis. MCC950, a highly selective NLRP3 inhibitor, exerts its therapeutic effects through a multi-layered mechanism: it binds to the NACHT domain (NAIP, CIITA, HET-E and TP1 domain) of NLRP3 with nanomolar affinity, forming hydrogen bonds with key residues (Lys-42 and Asp-166) within the ATP-hydrolysis pocket to block ATP hydrolysis, thereby locking NLRP3 in an inactive conformational state. Additionally, MCC950 interferes with the protein-protein interaction between TXNIP and NLRP3 and regulates mitochondrial homeostasis to reduce ROS production. Preclinical studies have demonstrated that MCC950 dose-dependently reduces proteinuria, restores the expression of podocyte-specific markers (nephrin and Wilms tumor 1 protein, WT1), and alleviates podocyte foot process fusion and glomerulosclerosis in both streptozotocin (STZ)-induced type 1 diabetic models (characterized by absolute insulin deficiency) and db/db type 2 diabetic models (driven by insulin resistance). However, discrepancies in therapeutic outcomes exist across different models—some studies report exacerbated renal inflammation and fibrosis in STZ-induced models—which may stem from differences in disease pathogenesis, intervention timing (early vs. mid-stage disease), and dosing duration. Despite its promising preclinical efficacy, MCC950 faces significant translational challenges, including low oral bioavailability, insufficient podocyte targeting, potential hepatotoxicity, and drug-drug interactions with statins (commonly prescribed to diabetic patients for cardiovascular risk management). Furthermore, off-target effects such as the inhibition of carbonic anhydrase 2 have been identified, raising concerns about its safety profile. Nevertheless, its unique mechanism of action—directly blocking podocyte pyroptosis by targeting the TXNIP-NLRP3 axis—endows it with substantial translational value. In the future, strategies to overcome these barriers are expected to advance its clinical application: targeted delivery via nanocarriers (e.g., PLGA-PEG nanoparticles or nephrin antibody-conjugated systems) to enhance renal accumulation and podocyte specificity; precise patient stratification based on biomarkers such as serum IL-18 and renal TXNIP/NLRP3 expression to identify “inflammatory-phenotype” DN patients most likely to benefit; and combination therapy with sodium-glucose cotransporter 2 (SGLT2) inhibitors—whose metabolic benefits synergize with MCC950’s anti-inflammatory effects. These approaches hold great potential to break through clinical translation bottlenecks, offering a novel, precise anti-inflammatory treatment option for DN and addressing an unmet clinical need for therapies targeting the inflammatory underpinnings of the disease.
7.Establishment and preliminary evaluation of a non-invasive fetal M blood group genotyping method by real-time PCR
Shuangshuang JIA ; Chunyan MO ; Ling WEI ; Jizhi WEN ; Runqing ZHANG ; Yanli JI
Chinese Journal of Blood Transfusion 2026;39(4):493-500
Objective: To establish a method for the genotyping of fetal M blood group antigen by extracting cell-free fetal DNA (cff-DNA) from maternal plasma, so as to guide the management of M antigen-negative pregnant women with IgG anti-M antibody during pregnancy. Methods: A realtime fluorescent quantitative PCR (realtime PCR) method was established. The specificity and sensitivity of the method were validated by dilution of genomic DNA. Subsequently, a total of 12 M antigen-negative pregnant women were enrolled. The cff-DNA was extracted from maternal plasma, and fetal M antigen genotyping was performed by realtime PCR. Fetuses were classified as M-positive or M-negative according to the presence or absence of amplification curve. The accuracy of the method was validated by comparing fetal M antigen genotyping results with the serological results using the cord or peripheral blood of the neonate at birth. Results: Among the 12 M antigen-negative pregnant women, anti-M was detected in five cases, of which four cases had IgG anti-M, and one case had fetal anemia. The results of fetal M antigen genotyping showed that 9 cases were M-positive (9/12, 75%) and 3 cases were M-negative (3/12, 25%). Serological results of blood samples collected after birth from four M-positive fetuses and one M-negative fetus were consistent with the genotyping results. Conclusion: We have, for the first time, established a non-invasive prenatal genotyping method for fetal M antigen using maternal plasma cff-DNA, and preliminarily demonstrated the feasibility of this method.
8.Pathological changes and macrophage polarization in the liver and spleen of mice infected with Angiostrongylus cantonensis
Xiaoyu QIN ; Yuchun CAI ; Yang HONG ; Fanna WEI ; Yahong HU ; Yumeng CAI ; Yuan HU ; Ting ZHANG ; Xiaojin MO ; Bin XU ; Yan LU ; Jiahui SUN ; Yan ZHOU ; Zelin ZHU ; Muxin CHEN
Chinese Journal of Schistosomiasis Control 2026;38(2):169-183
Objective To investigate the temporal changes in pathological damage and macrophage polarization in liver and spleen tissues of mice infected with Angiostrongylus cantonensis, and to preliminarily unravel the peripheral immune responses during the early stage of A. cantonensis infection. Methods Forty female BALB/c mice at ages of 6 to 8 weeks were randomly divided into four groups, including the control group and 7-, 14-, and 21-day infection groups, with 10 mice in each group. Each mouse in the infection groups was inoculated with 30 third-stage (L3) larvae of A. cantonensis by oral gavage, and five mice were randomly selected from each infection group on days 7, 14, and 21 post-infection, while mice in the control group were given the same volume of physiological saline and five mice were randomly selected from the control group on the day of oral gavage. Mouse liver and spleen tissues were sampled. The histopathological changes of mouse liver and spleen tissues were observed using hematoxylin and eosin (HE) staining, and the percentage of positive staining area and the co-localization positive rates of the macrophage surface antigens F4/80, CD86, and CD206 were quantified in mouse liver and spleen tissues using immunohistochemical and immunofluorescence staining. In addition, five mice were collected from each infection group on days 7, 14, and 21 post-infection, and five mice were collected from the control group on the day of oral gavage. Mouse liver and spleen tissues were sampled for detection of macrophage markers CD86 and CD206 and macrophage phenotyping using flow cytometry, and the expression of M1 macrophage markers, including inducible nitric oxide synthase (Nos2), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and M2 markers, including arginase 1 (Arg1), mannose receptor C-type 1 (Mrc1) and chitinase-like protein 3 (Chil3) was quantified in mouse liver and spleen tissues using real-time quantitative PCR (RT-qPCR) assay. Results Proliferative lesions of the hepatocyte were observed in mouse liver tissues and the follicular structures of the mouse spleen white pulp were disrupted 21 days post-infection with A. cantonensis. Immunohistochemical staining showed that there were significant differences in the percentages of F4/80, CD86 and CD206 positive staining areas in the liver and spleen tissues among the four groups of mice (F = 242.40, 197.14, 183.19, 157.65, 242.35 and 146.24; all P values < 0.001), and the percentages of positive staining in the liver and spleen tissues of mice in the 14-day infection group [(4.45 ± 0.51)%, (3.74 ± 0.67)%, (8.32 ± 0.72)%, (16.56 ± 1.14)%, (11.62 ± 0.52)%, and (8.29 ± 0.72)%, respectively] and the 21-day infection group [(3.70 ± 0.11)%, (3.22 ± 0.43)%, (11.53 ± 1.03)%, (12.59 ± 1.05)%, (9.02 ± 0.83)%, and (11.67 ± 1.10)%, respectively] were higher than in the control group [(0.35 ± 0.16)%, (0.40 ± 0.02)%, (0.93 ± 0.05)%, (2.78 ± 0.26)%, (2.33 ± 0.20)%, and (1.85 ± 0.20)%, respectively] (all P values < 0.05). Immunofluorescence staining showed significant differences in the positive rates of F4/80 co-localization with CD86 and CD206 in mouse liver and spleen tissues among the four groups (F = 24.42, 25.28, 54.51 and 130.55; all P values < 0.001). Flow cytometry detected significant differences in the proportions of CD86+ and CD206+ macrophages in mouse liver and spleen tissues among the four groups (F = 67.98, 18.41, 29.77, 172.80; all P values < 0.001), and the proportions of CD206+ macrophages in the liver and spleen of the 21-day infection group were significantly higher than those in the control group [(9.25 ± 2.55)% vs (3.83 ± 0.72)%, and (4.22 ± 0.56)% vs (0.47 ± 0.18)%, respectively] (both P values < 0.05). In addition, RT-qPCR assay quantified significant differences in the relative mRNA expression of M1 macrophage markers (IL-1β, TNF-α and Nos2) and M2 macrophage markers (Arg1, Chil3 and Mrc1) in mouse liver and spleen tissues among the four groups (F = 41.30, 31.82, 199.33, 19.96, 62.01, 119.76, 23.67, 95.90, 72.27, 82.59, 123.41 and 29.75; all P values < 0.05). Conclusions A. cantonensis infection may cause progressive pathological damage in mouse liver and spleen tissues, accompanied by dynamic temporal changes in macrophage polarization. M1 macrophage polarization predominates at the early stage of A. cantonensis infection and shifts towards M2 polarization at the later stages, suggesting that M2 polarization may participate in immune regulation at late stages of A. cantonensis infection by suppressing excessive inflammatory responses and promoting tissue repair.
9.Study on the effect and mechanism of Wenyang huayu formula in improving cerebral ischemia-reperfusion injury in rats
Tingting XIE ; Zhiying GONG ; Wei MA ; Xueni MO
China Pharmacy 2026;37(11):1422-1427
OBJECTIVE To investigate the improving effect and mechanism of Wenyang huayu formula on cerebral ischemia-reperfusion injury in rats based on nuclear factor-erythroid 2-related factor 2 (Nrf2)/glutathione peroxidase 4 (GPX4) signaling pathway and mitochondrial ferroptosis pathway. METHODS SD rats were randomly divided into sham operation group, model group,Nimodipine tablet group (10.8 mg/kg ), and Wenyang huayu formula group (28 g/kg), with 24 rats in each group. Except for the sham operation group, rats in other groups were all subjected to middle cerebral artery occlusion model by Longa thread occlusion method. After successful modeling, rats in each administration group were intragastrically gavaged with corresponding liquid for 7 days or 14 days, while rats in sham operation group and model group were given equal volume of normal saline once a day. At 7 and 14 days after administration, neurological deficit scores of rats were calculated; the ultrastructure of neuronal mitochondria in ischemic brain tissue of rats was observed;the contents of malondialdehyde (MDA), glutathione (GSH) and Fe 2+ , as well as the protein and mRNA expression levels of Nrf2, solute carrier family 7 member 11 (SLC7A11) and GPX4 in ischemic brain tissue of rats were detected. RESULTS At 7 and 14 days after administration, compared with the sham operation group, the neuronal mitochondria in ischemic brain tissue of rats in the model group showed typical changes of ferroptosis, and the injury continued to worsen over time; the neurological deficit scores, the contents of MDA and Fe 2+ were significantly increased ( P <0.05),while the content of GSH and the protein and mRNA expression levels of Nrf2, SLC7A11 and GPX4 were significantly decreased ( P <0.05). Compared with the model group, the morphology of neuronal mitochondria in ischemic brain tissue of rats in Nimodipine tablet group and Wenyang huayu formula group was gradually improved over time, and the above quantitative indicators were significantly reversed ( P <0.05);moreover, the improvement effect of most indicators in Wenyang huayu formula group was significantly better than that in Nimodipine tablet group ( P <0.05). CONCLUSIONS Wenyang huayu formula can improve cerebral ischemia-reperfusion injury in rats, and its mechanism may be related to activating Nrf2/GPX4 signaling pathway and inhibiting mitochondrial ferroptosis.
10.Analysis on Theoretical Model and Pharmacological Mechanism of Staged Treatment of Severe Acute Pancreatitis with "Strengthening Healthy Qi to Eliminate Pathogenic Factors"
Wei JIN ; Quanyu DU ; Yang SONG ; Yong CHEN ; Junfeng MO ; Xiaochuan PAN ; Chunrun LI ; Peishu LAN ; Shaohong CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(14):195-204
Severe acute pancreatitis (SAP) is closely related to dysfunction of the spleen-stomach ascent and descent. Due to the influence of modern lifestyle and dietary factors, Qi deficiency in the spleen and stomach has become the pathological basis of SAP. Its pathogenesis is characterized by dampness, heat, pathogenic factors, stasis, stagnation, obstruction, Fu-organs Qi obstruction, pathogenic excess, and healthy Qi deficiency. At different stages of the disease course of SAP, there is a focus on both pathogenic excess and healthy Qi deficiency. It is specifically manifested as Fu-organs stagnation and heat accumulation, as well as pathogenic excess and healthy Qi deficiency, during the systemic inflammatory response phase, intermingling of blood stasis and pathogenic factors, as well as Qi deficiency and blood stasis, during the infection period, and weakness of the spleen and stomach, as well as healthy Qi deficiency and lingering pathogenic factors, during the residual infection period. Based on the theory that "the spleen and stomach are the acquired foundation", a staged treatment method centered on the core principle of "strengthening healthy Qi to eliminate pathogenic factors" was developed. The staged treatment method included "clearing the Fu-organs to expel turbidity, replenishing Qi to harmonize the stomach, activating blood circulation to expel pathogenic factors, replenishing Qi to relieve pain, promoting digestion to stimulate appetite, and replenishing Qi to invigorate the spleen". In clinical practice, Hewei Tongxie mixture, Yikang mixture, and Shiwei Jianpi Xiaoshi powder were selected for staged treatment of SAP. This article systematically summarized the theoretical basis of traditional Chinese medicine, Western medicine foundation, modern pharmacological mechanisms, and clinical application experience of the staged treatment of SAP with "strengthening the healthy Qi to eliminate pathogenic factors", providing new ideas for the treatment of SAP with traditional Chinese medicine.

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