1.Mechanism of Xiezhuo Jiedu Prescription in Treatment of Ulcerative Colitis by Inhibiting Ferroptosis and Alleviating Intestinal Mucosal Injury Based on Nrf2/SLC7A11/GPX4 Signaling Pathway
Qiang CHUAI ; Wenjing ZHAI ; Sujie JIA ; Xiaomeng LANG ; Jie REN ; Xin KANG ; Shijie REN ; Xingchi LIU ; Xin LIU ; Xiaohong JIANG ; Jianping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):160-169
ObjectiveTo investigate the mechanism of Xiezhuo Jiedu prescription in the treatment of ulcerative colitis (UC) by inhibiting ferroptosis and alleviating intestinal mucosal injury based on the nuclear factor E2 related factor 2/solute carrier family 7 member/glutathione peroxidase 4 (Nrf2/SLC7A11/GPX4) signaling pathway. MethodsA total of 60 male SD rats were divided into a normal group, a model group, high- and low-dose Xiezhuo Jiedu prescription groups (26.64 and 13.32 g·kg-1, respectively), a ferroptosis inhibitor group (Ferrostatin-1, 0.005 g·kg-1), and a mesalazine group (0.27 g·kg-1), with 10 rats in each group. A UC rat model was established by intrarectal administration of trinitrobenzene sulfonic acid (TNBS)-ethanol. The normal group and the model group were intragastrically administered normal saline. The other groups were given intragastric administration according to the corresponding dosage for 7 d. The general condition, disease activity index (DAI) score, colon length, and mucosal injury index (CDMI) score were observed in each group. The pathological changes of colon tissue in each group were observed by hematoxylin-eosin (HE) staining. The intestinal mucosa and mitochondrial morphology in each group were observed by transmission electron microscopy. The expression levels of Occludin, Claudin-1, mucin 2 (MUC2), and E-cadherin in intestinal tissue were detected by immunofluorescence (IF). Enzyme-linked immunosorbent assay (ELISA) was used to detect the expression levels of serum tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-10 (IL-10) in each group, and a lactic acid assay kit or ELISA was employed to detect the expression levels of reactive oxygen species (ROS), ferrous ions (Fe2+), glutathione (GSH), malondialdehyde (MDA), 4-hydroxynonenal (4-HNE), diamine oxidase (DAO), and D-lactate (D-LA). Real-time quantitative polymerase chain reaction (Real-time PCR) was applied to detect the mRNA expression levels of Nrf2, SLC7A11, GPX4, Occludin, Claudin-1, MUC2, and E-cadherin in each group, and Western blot was adopted to detect the protein expression levels of Nrf2, p-Nrf2, SLC7A11, and GPX4 in each group. ResultsCompared with the normal group, rats in the model group exhibited listlessness, sluggish response, and mucopurulent and bloody stools. The model group also showed significantly increased DAI score, colon length, CDMI score, and expression levels of TNF-α, IL-6, ROS, Fe2+, MDA, 4-HNE, DAO, and D-LA (P<0.01). In addition, it presented significantly decreased IF values of Occludin, Claudin-1, MUC2, and E-cadherin and mRNA and protein expression levels of IL-10, GSH, Nrf2, p-Nrf2, SLC7A11, and GPX4 (P<0.01). There were different degrees of improvement in each administration group after treatment, and the improvement was the most significant in the high-dose Xiezhuo Jiedu prescription group (P<0.01). ConclusionXiezhuo Jiedu prescription may alleviate intestinal mucosal injury by inhibiting ferroptosis of intestinal epithelial cells via regulating the Nrf2/SLC7A11/GPX4 signaling pathway, thereby exhibiting efficacy in the treatment of UC.
2.Mechanism of isochlorogenic acid A against hepatocellular carcinoma based on PI3K/Akt/mTOR signaling pathway combined with multi-omics
Weiwei SU ; Weibing JIA ; Houjian REN ; Xianhui SU ; Huijie GAO ; Zhongchao HUO ; Xin HOU ; Zhen WANG
China Pharmacy 2026;37(10):1258-1263
OBJECTIVE To investigate the mechanism of isochlorogenic acid A against hepatocellular carcinoma based on the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) signaling pathway and multi-omics technology. METHODS The invasion rate and migration rate of human hepatocellular carcinoma HepG2 cells after 48 h of intervention with 0 (control group), 0.25 and 0.5 mg/mL isochlorogenic acid A were examined; mRNA expression of DEP domain-containing mTOR-interacting protein (DEPTOR), the protein expressions of mTOR, PI3K and phosphatase and tensin homologue deleted on chromosome ten (PTEN), as well as the phosphorylation level of Akt protein were determined in the cells. Metabolomics analysis was performed using liquid chromatography-tandem mass spectrometry, and differential metabolites were screened and subjected to Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis; transcriptomics monitoring was conducted by RNA sequencing, and differentially expressed genes were screened and subjected to gene ontology (GO) and KEGG pathway enrichment analyses. RESULTS Compared with the control group, intervention with 0.25 and 0.5 mg/mL isochlorogenic acid A for 48 h significantly inhibited the invasion rate and migration rate of HepG2 cells, significantly up-regulated the mRNA expression of DEPTOR and the protein expression of PTEN, and significantly down-regulated the protein expression of PI3K and the phosphorylation level of Akt protein (except for 0.25 mg/mL isochlorogenic acid A) ( P <0.05). A total of 304 differential metabolites and 212 differentially expressed genes were screened by multi-omics analysis. KEGG pathway enrichment analysis suggested that isochlorogenic acid A regulated key signaling of HepG2 cell growth mainly by inhibiting the PI3K/Akt signaling pathway, synergizing with metabolic reprogramming such as mTOR signaling pathway, ferroptosis, pentose phosphate pathway and purine/pyrimidine metabo lism. CONCLUSIONS The anti-hepatocellular carcinoma effect of isochlorogenic acid A is associated with the blockade of abnormal activation of the PI3K/Akt/mTOR signaling pathway. In addition, it may also be related to the inhibition of the pentose phosphate pathway and purine/pyrimidine metabolism, as well as the induction of ferroptosis,etc.
3.SIRT5 Potentiates Hepatocarcinogenesis by Modulating Protein Acylation in Mice
Yu ZHANG ; Feng-Rui REN ; Jia-Yun LI ; Xiang-Yu CHEN ; Zi-Yi WANG ; Qi SUN ; Jun-Cheng ZHAO ; Ye ZHANG ; Zhen HUANG ; Hao HU ; Tao-Tao WEI ; Min XIAO
Progress in Biochemistry and Biophysics 2026;53(6):1712-1722
ObjectiveHepatocellular carcinoma (HCC) represents 90% of all primary liver cancers. The main risk factors associated with HCC include viral hepatitis (B and/or C), alcohol abuse, and metabolic dysfunction-associated steatotic liver disease (MASLD), which progressively advance to liver fibrosis, cirrhosis, and ultimately evolve into HCC. Surgical resection represents the most effective treatment for HCC, while recent advances in immunotherapy, including immune checkpoint inhibitors and adoptive cell therapies, have provided improved treatment prospects for patients with unresectable HCC. However, the complex metabolic heterogeneity of HCC limits the therapeutic efficacy. Metabolic intermediates acyl-CoA not only provide energy and substrates for numerous biochemical reactions but also serve as donors for protein lysine acylation, a major class of post-translational modification (PTM). Therefore, a deeper understanding of the molecular mechanisms underlying protein lysine acylation and hepatocarcinogenesis is urgently needed. MethodsThe levels of protein lysine acylation and silence information regulator 5 (SIRT5) expression levels in clinical HCC samples were analyzed by Western blot. Quantitative malonylome and succinylome of HCC samples were analyzed by antibody-based affinity enrichment coupled with tandem mass spectrometry. The proliferation of HCC cells was analyzed with Cell Counting Kit-8 (CCK-8) assays, the apoptosis was quantified by Annexin V-FITC/propidium iodide (PI) staining coupled with flow cytometry, and the ability of cells to migrate was assayed by Transwell assays. The enzymatic activity of glutathione S-transferase Mu 1 (GSTM1) was quantified. Transgenic mice with hepatic overexpression of SIRT5 were constructed using CRISPR-Cas9, and primary hepatocarcinogenesis was induced by administration of diethylnitrosamine. ResultsWestern blot analysis indicated that the expression level of SIRT5 was elevated in clinical samples from HCC patients, and the levels of lysine malonylation, glutarylation, and succinylation were significantly reduced in HCC tissues. Knockout of SIRT5 in MHCC-97H and MHCC-97L hepatoma cells suppressed cell proliferation, and increased the percentage of apoptotic cells significantly. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses of the differentially malonylome and succinylome of HCC samples revealed significant enrichment in two major classes of biological processes: core energy metabolism (e.g., glycolysis/gluconeogenesis, tricarboxylic acid metabolic process, fatty acid beta oxidation) and detoxification and oxidative stress response (e.g., response to toxic substance, chemical carcinogenesis, reactive oxygen species (ROS)). SIRT5 removes malonylation from lysine residues in GSTM1 and restores its detoxification activity, which is crucial for the survival of hepatocytes under stressed conditions. More importantly, in vivo experiment indicated that hepatic-specific overexpression of SIRT5 in mice accelerated diethylnitrosamine-induced liver fibrosis and hepatocarcinogenesis, indicating the critical role of SIRT5 in HCC progression. ConclusionThis study highlights the previously unrecognized SIRT5-GSTM1 axis as a key regulator in hepatocarcinogenesis, and suggests a potential target for the treatment of patients with HCC.
4.The role of preoperative differentiation in surgical decision-making for testicular tumors: a single-center data analysis of 121 testicular tumor patients
Long TIAN ; Ge TIAN ; Zhe LIU ; Zejun REN ; Jia GUO ; Lin YANG
Journal of Modern Urology 2026;31(6):547-551
Objective To explore the clinical value of preoperative assessment and intraoperative frozen section pathology in screening patients suitable for testicular preservation surgery, so as to provide reference for reducing unnecessary radical orchiectomy in patients with benign testicular tumors. Methods A retrospective analysis was conducted on 121 patients who underwent surgical treatment for testicular tumors in the First Affiliated Hospital of Xi'an Jiaotong University during Jan. 2021 and Sep. 2025. Data were collected, including demographic information, preoperative imaging, serum tumor markers, surgical procedures, intraoperative frozen section, postoperative pathology, and postoperative testicular volume changes. Results Among the 121 patients, 105 underwent radical orchiectomy, with 91 malignant and 14 benign cases confirmed by postoperative pathology; 16 received testicular tumor enucleation, all confirmed as benign. Benign lesions accounted for 24.79% (30/121) of all cases. In patients undergoing tumor enucleation, intraoperative frozen section results were fully consistent with final pathological findings. Conclusion Preoperative differentiation between benign and malignant testicular tumors is crucial for selecting the appropriate surgical approach. For patients with preoperative findings suggesting benign lesions, testicular tumor enucleation combined with intraoperative frozen section can achieve precise treatment while maximizing testicular preservation.
5.Role of naringenin in the prevention and treatment of autoimmune hepatitis and its molecular mechanism
Changwen LIN ; Qiuyi REN ; Mengjie ZHENG ; Huan YAN ; Jia LI ; Jiaxin FENG ; Haiying LIN ; Faming SHU ; Xiaoling ZHOU ; Dewen MAO ; Fuli LONG
Journal of Clinical Hepatology 2026;42(6):1419-1425
Autoimmune hepatitis (AIH) is a chronic inflammatory liver disease mediated by T lymphocytes, and it can progress to liver cirrhosis or even liver failure without timely intervention. As a natural flavonoid compound, naringenin (NAR) shows a potential value in the prevention and treatment of AIH through multiple mechanisms such as remodeling immune homeostasis, targeted inhibition of inflammatory pathways, antioxidation, regulating hepatocyte metabolism and apoptosis, improving mitochondrial function, and regulating intestinal flora. However, the clinical translation and application of NAR is limited by issues such as low bioavailability and insufficient efficiency of liver-targeted delivery. This article systematically reviews the mechanism of action of NAR in the prevention and treatment of AIH, explores the potential signaling pathways involved in this process, and analyzes existing challenges in its translation and application and future research directions, so as to provide a reference for further research on NAR and its application in the prevention and treatment of AIH.
6.Subacute Thyroiditis vs Suppurative Thyroiditis: A Diagnostic Challenge
Jia En Chew ; Ju Vern Ew ; Albert Li Ren Chong ; Eunice Yi Chwen Lau
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):121-122
Introduction:
Subacute thyroiditis (SAT) and acute suppurative
thyroiditis (AST) are two distinct inflammatory conditions
but share many overlapping clinical and biochemical
features, which may pose a diagnostic challenge. We report
a case of SAT mimicking AST.
Case:
A 39-year-old female presented with a 3-week history of
painful neck swelling and symptoms of thyrotoxicosis,
including palpitations, heat intolerance, and diaphoresis. She
had no family history of thyroid disease. On examination,
she was febrile and had a smooth and tender goiter. Her
blood tests showed leukocytosis with elevated erythrocyte
sedimentation rate and C-reactive protein. Her thyroid
function test (TFT) showed thyroid-stimulating hormone of
0.023 mIU/L and free thyroxine 4 of 32.15 pmol/L.
An urgent ultrasound revealed a large, ill-defined
heterogeneously hypoechoic lesion predominantly at
the left lobe of the thyroid gland with mild intralesional
vascularity. These were reported as features of thyroiditis
with infective or early suppurative changes. Fine needle
aspiration (FNA) of the lesion was attempted by the
radiologist but was unsuccessful.
She was treated with intravenous antibiotics and nonsteroidal anti-inflammatory drugs (NSAIDs), but symptoms
persisted. Repeated ultrasound and computed tomography
scans about 1 week later confirmed an enlarged thyroid
gland with no obvious lesion or collection within the gland.
The diagnosis was revised to SAT, and prednisolone 15 mg
OD was started. This resulted in rapid improvement in her
symptoms and inflammatory markers.
Four weeks later, she remained asymptomatic, and
prednisolone was gradually tapered off. Serial TFT
monitoring showed a classic triphasic pattern with an initial
hyperthyroid phase, followed by hypothyroidism before
returning to euthyroidism.
Conclusion
SAT can present with a focal lesion on the ultrasound
during the early stage of the disease, making it difficult
to distinguish from a thyroid abscess due to overlapping
features. Good clinical judgement guided by FNA
and appropriate follow-up imaging may be helpful in
differentiating between the two conditions.
Thyroiditis, Subacute
;
Thyroiditis, Suppurative
7.Association between complete edentulism and incident cardiovascular disease among older adults: a retrospective cohort study
JIA Ling ; REN Beijia ; HE Yaling
Journal of Prevention and Treatment for Stomatological Diseases 2026;34(10):970-981
Objective:
To explore the association between baseline complete edentulism and the risk of incident cardiovascular disease (CVD) in older adults, and to verify the consistency across clinical subgroups and robustness of the findings, providing evidence for early CVD risk identification and comprehensive prevention and management among older adults.
Methods:
Data were derived for a retrospective analysis from two longitudinal cohorts: the China Health and Retirement Longitudinal Study (CHARLS) and the Health and Retirement Study (HRS). Participants aged ≥ 60 years without prevalent CVD at baseline were enrolled. Baseline complete edentulism was defined as the exposure variable, and incident CVD during follow-up was set as the outcome variable. Kaplan-Meier analysis was performed to compare differences in CVD-free survival probability between groups. Multivariable Cox proportional hazards regression models were used to estimate the independent association between edentulism and incident CVD. In addition, an interval-censored proportional hazards model was applied as a sensitivity analysis to assess the potential impact of approximating event times on the risk estimates. Hazard ratios and 95% confidence intervals were used for description. Six-dimension subgroup (age, sex, education, etc.) analyses and interaction tests were performed to confirm the generalizability of the association, and five sensitivity analyses were conducted to validate the reliability of the results.
Results:
A total of 5 522 participants from the CHARLS and 7 738 participants from the HRS were included. Survival analysis revealed that the CVD-free survival probability was significantly lower in the complete edentulism group than in the non-edentulous group across both cohorts (P < 0.001). Fully adjusted regression models identified complete edentulism as an independent risk factor for new-onset CVD among older adults (CHARLS: HR = 2.64, 95% CI: 2.33-2.99, P < 0.001; HRS: HR = 2.69, 95% CI: 2.46-2.95, P < 0.001). The results from the interval-censored model were highly consistent with those from the conventional Cox model. This association persisted across all predefined six dimensions subgroups with all interaction P > 0.05. Outcomes of five sensitivity analyses were consistent with primary analyses, indicating favorable robustness. The strongest association was observed when stroke was treated as a separate endpoint (CHARLS: HR = 2.85; HRS: HR = 2.91).
Conclusion
Findings from both the Chinese and U.S. cohorts consistently indicate that complete edentulism independently elevates the risk of incident CVD in older adults, with robust associations across diverse subgroups. Complete edentulism may serve as an auxiliary indicator for CVD risk stratification among older adults.
8.Medication rules of Astragali Radix in ancient Chinese medical books based on "disease-medicine-dose" pattern.
Jia-Lei CAO ; Lü-Yuan LIANG ; Yi-Hang LIU ; Zi-Ming XU ; Xuan WANG ; Wen-Xi WEI ; He-Jia WAN ; Xing-Hang LYU ; Wei-Xiao LI ; Yu-Xin ZHANG ; Bing-Qi WEI ; Xian-Qing REN
China Journal of Chinese Materia Medica 2025;50(3):798-811
This study employed the "disease-medicine-dose" pattern to mine the medication rules of traditional Chinese medicine(TCM) prescriptions containing Astragali Radix in ancient Chinese medical books, aiming to provide a scientific basis for the clinical application of Astragali Radix and the development of new medicines. The TCM prescriptions containing Astragali Radix were retrieved from databases such as Chinese Medical Dictionary and imported into Excel 2020 to construct the prescription library. Statical analysis were performed for the prescriptions regarding the indications, syndromes, medicine use frequency, herb effects, nature and taste, meridian tropism, dosage forms, and dose. SPSS statistics 26.0 and IBM SPSS Modeler 18.0 were used for association rules analysis and cluster analysis. A total of 2 297 prescriptions containing Astragali Radix were collected, involving 233 indications, among which sore and ulcer, consumptive disease, sweating disorder, and apoplexy had high frequency(>25), and their syndromes were mainly Qi and blood deficiency, Qi and blood deficiency, Yin and Yang deficiency, and Qi deficiency and collateral obstruction, respectively. In the prescriptions, 98 medicines were used with the frequency >25 and they mainly included Qi-tonifying medicines and blood-tonifying medicines. Glycyrrhizae Radix et Rhizoma, Angelicae Sinensis Radix, Ginseng Radix et Rhizoma, Atractylodis Macrocephalae Rhizoma, and Citri Reticulatae Pericarpium were frequently used. The medicines with high frequency mainly have warm or cold nature, and sweet, pungent, or bitter taste, with tropism to spleen, lung, heart, liver, and kidney meridians. In the treatment of sore and ulcer, Astragali Radix was mainly used with the dose of 3.73 g and combined with Glycyrrhizae Radix et Rhizoma to promote granulation and heal up sores. In the treatment of consumptive disease, Astragali Radix was mainly used with the dose of 37.30 g and combined with Ginseng Radix et Rhizoma to tonify deficiency and replenish Qi. In the treatment of sweating disorder, Astragali Radix was mainly used with the dose of 3.73 g and combined with Glycyrrhizae Radix et Rhizoma to consolidate exterior and stop sweating. In the treatment of apoplexy, Astragali Radix was mainly used with the dose of 7.46 g and combined with Glycyrrhizae Radix et Rhizoma to dispell wind and stop convulsions. Astragali Radix can be used in the treatment of multiple system diseases, with the effects of tonifying Qi and ascending Yang, consolidating exterior and stopping sweating, and expressing toxin and promoting granulation. According to the manifestations of different diseases, when combined with other medicines, Astragali Radix was endowed with the effects of promoting granulation and healing up sores, tonifying deficiency and Qi, consolidating exterior and stopping sweating, and dispelling wind and replenishing Qi. The findings provide a theoretical reference and a scientific basis for the clinical application of Astragali Radix and the development of new medicines.
Drugs, Chinese Herbal/history*
;
Humans
;
Medicine, Chinese Traditional/history*
;
History, Ancient
;
Astragalus Plant/chemistry*
;
China
;
Astragalus propinquus
9.Identification of blood-entering components of Anshen Dropping Pills based on UPLC-Q-TOF-MS/MS combined with network pharmacology and evaluation of their anti-insomnia effects and mechanisms.
Xia-Xia REN ; Jin-Na YANG ; Xue-Jun LUO ; Hui-Ping LI ; Miao QIAO ; Wen-Jia WANG ; Yi HE ; Shui-Ping ZHOU ; Yun-Hui HU ; Rui-Ming LI
China Journal of Chinese Materia Medica 2025;50(7):1928-1937
This study identified blood-entering components of Anshen Dropping Pills and explored their anti-insomnia effects and mechanisms. The main blood-entering components of Anshen Dropping Pills were detected and identified by UPLC-Q-TOF-MS/MS. The rationality of the formula was assessed by using enrichment analysis based on the relationship between drugs and symptoms, and core targets of its active components were selected as the the potential anti-insomnia targets of Anshen Dropping Pills through network pharmacology analysis. Furthermore, protein-protein interaction(PPI) network, Gene Ontology(GO) enrichment analysis, and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway analysis were performed on the core targets. An active component-core target network for Anshen Dropping Pills was constructed. Finally, the effects of low-, medium-, and high-dose groups of Anshen Dropping Pills on sleep episodes, sleep duration, and sleep latency in mice were measured by supraliminal and subliminal pentobarbital sodium experiments. Moreover, total scores of the Pittsburgh sleep quality index(PSQI) scale was used to evaluate the changes before and after the treatment with Anshen Dropping Pills in a clinical study. The enrichment analysis based on the relationship between drugs and symptoms verified the rationality of the Anshen Dropping Pills formula, and nine blood-entering components of Anshen Dropping Pills were identified by UPLC-Q-TOF-MS/MS. The network proximity revealed a significant correlation between eight components and insomnia, including magnoflorine, liquiritin, spinosin, quercitrin, jujuboside A, ginsenoside Rb_3, glycyrrhizic acid, and glycyrrhetinic acid. Network pharmacology analysis indicated that the major anti-insomnia pathways of Anshen Dropping Pills involved substance and energy metabolism, neuroprotection, immune system regulation, and endocrine regulation. Seven core genes related to insomnia were identified: APOE, ALB, BDNF, PPARG, INS, TP53, and TNF. In summary, Anshen Dropping Pills could increase sleep episodes, prolong sleep duration, and reduce sleep latency in mice. Clinical study results demonstrated that Anshen Dropping Pills could decrease total scores of PSQI scale. This study reveals the pharmacodynamic basis and potential multi-component, multi-target, and multi-pathway effects of Anshen Dropping Pills, suggesting that its anti-insomnia mechanisms may be associated with the regulation of insomnia-related signaling pathways. These findings offer a theoretical foundation for the clinical application of Anshen Dropping Pills.
Animals
;
Drugs, Chinese Herbal/administration & dosage*
;
Tandem Mass Spectrometry/methods*
;
Sleep Initiation and Maintenance Disorders/metabolism*
;
Mice
;
Network Pharmacology
;
Male
;
Chromatography, High Pressure Liquid
;
Humans
;
Protein Interaction Maps/drug effects*
;
Sleep/drug effects*
;
Female
;
Adult
10.Pathogenesis of precancerous lesions of gastric cancer and treatment mechanism of Weifuchun Capsules via NF-κB/NLRP3 inflammasome signaling pathway.
Yu-Jia DU ; Ya-di REN ; Yan ZHUANG ; En-Ze LI ; Jun-Hao MIAO ; Chun-Yue YU
China Journal of Chinese Materia Medica 2025;50(5):1236-1246
This study aims to investigate the pathogenesis of precancerous lesions of gastric cancer(PLGC) and explore the potential molecular mechanism of Weifuchun Capsules(WFC) in treating PLGC via the nuclear factor-κB(NF-κB)/NOD-like receptor protein 3(NLRP3) inflammasome signaling pathway. Ninety male SPF-grade Wistar rats were randomized into a normal feeding group and a modeling group. The normal feeding group received a regular diet, while the modeling group was subjected to the disease-syndrome combined modeling of PLGC. Specifically, the rats had free access to the water containing 120 μg·mL~(-1) N-methyl-N'-nitro-N-nitrosoguanidine(MNNG) and received a diet containing 0.05% ranitidine in an irregular feeding pattern(alternations between fasting and overfeeding). After 15 weeks, the rats in the normal feeding group were randomized into control, control-NF-κB activator betulinic acid(C-BA), and control-NF-κB inhibitor pyrrolidine dithiocarbamaten(C-PDTC) groups. Meanwhile, the rats in the modeling group continuously underwent the modeling procedure and were randomized into model, WFC, model-NF-κB activator(M-BA), and model-NF-κB inhibitor(M-PDTC) groups. The model group and control group were given aseptic water by intragastric administration, once a day. WFC was given at a dose(432 mg·kg~(-1)) 6 times the equivalent dose for adults(body weight: 60 kg) by gavage, once a day. The rats in the C-BA and M-BA groups were administrated with BA by intraperitoneal injection at a dose of 10 mg·kg~(-1), twice a week. The rats in the C-PDTC and M-PDTC groups were administrated with PDTC by intraperitoneal injection at a dose of 50 mg·kg~(-1), twice a week. The interventions were carried out for 4 weeks. Histopathological changes of the gastric mucosa were observed and scored by hematoxylin-eosin(HE) and alcian blue-periodic acid Sthiff(AB-PAS) staining. The levels of inflammatory cytokines including interleukin(IL)-1β, IL-6, IL-18, tumor necrosis factor-alpha(TNF-α), and IL-10 in the gastric tissue were determined by enzyme-linked immunosorbent assay(ELISA). The expression levels of proteins associated with the NF-κB/NLRP3 inflammasome in the gastric mucosa were determined by Western blot. The positive expression areas of proteins related to NF-κB/NLRP3 inflammasome in the gastric mucosa were measured by immunohistochemistry. The results showed that compared with the control group, the model, C-BA, and M-BA groups showed significantly risen scores of mucosal inflammation, degree of inflammatory activity, gland atrophy, and intestinal metaplasia, and the model and M-BA groups showed significanly risen scores of dysplasia. Compared with the model group, the WFC group demonstrated significantly declined scores of mucosal inflammation and degree of inflammatory activity, as well as declined scores of intestinal metaplasia and dysplasia. Compared with the control group, the model and C-BA groups showed significantly elevated levels of IL-1β, IL-6, IL-18, and TNF-α in the gastric tissue, and the model group showed significantly elevated level of IL-10. In addition, the model and C-BA groups showed significantly up-regulated expression of NF-κB p65, NLRP3, cysteine-aspartic acid protease 1(caspase-1), and apoptosis-associated speck-like protein containing a CARD(ASC) in the gastric mucosa and increased positive expression areas of NF-κB p65, NLRP3, and ASC. Compared with the model group, the WFC group showed significantly decreased levels of IL-1β, IL-6, IL-18, TNF-α, and IL-10 in the gastric tissue, and the M-PDTC group showed significantly lowered levels of IL-1β, IL-18, and TNF-α in the gastric mucosa. Both WFC and M-PDTC groups demonstrated significantly down-regulated expression levels of NF-κB p65, phosphorylated NF-κB p65(p-NF-κB p65), NLRP3, and caspase-1 in the gastric mucosa, along with significant decreases in the positive expression areas of NF-κB p65, NLRP3, and ASC. In conclusion, the pathogenesis of PLGC is closely related to the activation of the NF-κB/NLRP3 inflammasome signaling pathway. WFC can alleviate mucosal inflammation, inhibit glandular atrophy, partially reverse intestinal metaplasia, and reduce dysplasia to delay the process of inflammation-cancer transformation, and meanwhile it can effectively lower the levels of inflammatory cytokines and down-regulate the expression of pathway-related proteins in the stomach. Therefore, WFC may treat PLGC by inhibiting the NF-κB/NLRP3 inflammasome signaling pathway.
Animals
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Male
;
NF-kappa B/genetics*
;
Rats
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Rats, Wistar
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Drugs, Chinese Herbal/administration & dosage*
;
Signal Transduction/drug effects*
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NLR Family, Pyrin Domain-Containing 3 Protein/metabolism*
;
Stomach Neoplasms/pathology*
;
Inflammasomes/genetics*
;
Humans
;
Precancerous Conditions/metabolism*
;
Capsules


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