1.Oral health-related quality of life status and risk factors in patients with mental disorders.
Xuemei YANG ; Hongyu WANG ; Yonghua TANG ; Chengjun YIN ; Jingya YU ; Xiaoqin BI
West China Journal of Stomatology 2025;43(1):84-91
OBJECTIVES:
This study aims to explore the current status and risk factors of oral health-related quality of life OHRQoL in patients with mental disorders and provide evidence for effective intervention measures.
METHODS:
A total of 397 patients diagnosed with mental illness were selected by convenience sampling, and investigation was carried out using general data questionnaire, health literacy in dentistry-14 (HeLD-14), oral health impact profile-14 (OHIP-14), and oral health status checklist.
RESULTS:
The total score of OHIP-14 in patients with mental disorders was 8(2, 14). The score of HeLD-14 was negatively correlated with the score of OHIP-14 (r=-0.142, P<0.01). The results of multiple linear regression showed that six variables including annual family income, schizophrenia, sweets, frequency of visits to the dentist, dental caries, and missing teeth affected OHRQoL of patients with mental disorders (P<0.05).
CONCLUSIONS
The poor OHRQoL of psychiatric patients is associated with many factors. Medical personnel should pay attention to their oral health problems and develop targeted oral care programs throughout the course of disease to improve oral health and related quality of life of patients.
Humans
;
Quality of Life
;
Oral Health
;
Mental Disorders
;
Risk Factors
;
Surveys and Questionnaires
;
Male
;
Female
;
Dental Caries
;
Adult
;
Middle Aged
;
Schizophrenia
2.Effect of Yishen Zhuyu Tongluo Decoction on chondrocyte pyroptosis and ferroptosis in rats with knee osteoarthritis
Jingya WANG ; Kang YAN ; Jian LI ; Meng WANG ; Yuyang YANG ; Yueyue YU
Chinese Journal of Comparative Medicine 2025;35(1):49-58
Objective To investigate the effects of Yishen Zhuyu Tongluo Decoction on chondrocyte pyroptosis and ferroptosis in rats with knee osteoarthritis(KOA).Methods Forty SD were divided randomly into a sham operation group(n=10)and a modeling group(n=30).A KOA model was established in the modeling group by anterior cruciate ligament transection of the right hind limb knee joint.The drawer test was used to confirm the successful establishment of the model.Post-surgery,the rats were subjected to 30 min of forced activity daily to induce KOA.Lameness and hopping movements were observed after 4 weeks,and hematoxylin and eosin staining confirmed cartilage surface damage,deformation,and inflammatory cell infiltration,indicating successful modeling.The model rats were then assigned randomly to a model group(n=8),celecoxib group(n=8),and Yishen Zhuyu Tongluo Decoction group(n=8).The sham operation and model groups received 10 mL/kg of saline by gavage,the celecoxib group received 12 mg/kg of celecoxib solution,and the Yishen Zhuyu Tongluo Decoction group received 5.4 g/kg of the herbal decoction,once daily for 8 weeks.After the interventions,the rats were anesthetized,blood was collected from the abdominal aorta and serum was separated,and the knee joints were isolated.Three samples were fixed in paraformaldehyde,while the remaining cartilage tissue was reserved.Pathological changes in joint cartilage were observed by hematoxylin and eosin and Safranin O-Fast Green staining.Bone microstructure was analyzed using micro-computed tomography.Serum interleukin(IL)-1β and IL-18 protein levels were detected by enzyme-linked immunosorbent assay.Relative mRNA expression levels of NLRP3,ASC,Caspase-1,GSDMD,IL-1β,IL-18,ACSL-4,FTH-1,GPX-4,and cyclooxygenase(COX)-2 were detected by reverse transcription quantitative real-time PCR,and protein expression of NLRP3,Caspase-1,and COX-2 were detected by immunohistochemistry.Results Compared with the sham operation group,model rats showed surface damage and deformation of cartilage tissue,disordered cell arrangement in all layers,significant loss of Safranin O-Fast Green staining,and sparse and irregular trabecular bone distribution.Serum levels of the inflammatory factors IL-1β and IL-18 were elevated(P<0.01).mRNA expression levels of NLRP3,ASC,Caspase-1,GSDMD,IL-1β,IL-18,ACSL-4,and COX-2 were also significantly increased(all P<0.01),while FTH-1 and GPX-4 mRNA expression levels were decreased(P<0.01).Compared with the model group,rats in the celecoxib and Yishen Zhuyu Tongluo Decoction groups showed smoother and more intact cartilage surfaces,significantly increased cell counts,less loss of Safranin O-Fast Green staining,denser trabecular bone,and thicker cortical bone,with improved bone microstructure.Serum IL-1β and IL-18 levels were reduced(P<0.01),NLRP3(P<0.01,P<0.05),ASC,Capase-1,GSDMD,IL-1β,IL-18,ACSL-4,and COX-2 mRNA levels were decreased(all P<0.01),and relative expression levels of FTH-1 and GPX-4 mRNA were significantly increased(P<0.01).Conclusions Yishen Zhuyu Tongluo Decoction can treat KOA by inhibiting chondroptosis and ferroptosis in chondrocytes,reducing serum IL-1β and IL-18 levels,and improving bone microstructure.
3.Preventive effect and mechanism of chIFN-γ-chCD154 against Salmonella typhi-murium infection in White Leghorn chickens
Jingya ZHANG ; Guofan REN ; Honglin XIE ; Juan WANG ; Zengqi YANG ; Yefei ZHOU ; Xinglong WANG
Chinese Journal of Veterinary Science 2025;45(4):707-716,737
This study aims to evaluate the preventive effect of the exogenous protein chIFN-γ-chCD154 against Salmonella typhimurium(S.typhimurium)infection in White Leghorn chick-ens,and the potential mechanism.In this study,Escherichia coli was used to express the proteins chIFN-γ,chCD154 and chIFN-γ-chCD154.Before S.typhimurium infection,the White Leghorn chickens were pre-immunized via drinking water for three consecutive days,and infected with S.typhimurium by gavage.The results from Western blot,quantitative real-time PCR(qRT-PCR)analysis and histopathology analysis showed that compared to chIFN-γ and chCD154,chIFN-γ-chCD154 pre-treatment could synergistically increase the survival rate of infected chickens,reduce the bacterial load in the liver and cecum,and attenuate the pathological damage of liver and cecum.Moreover,chIFN-γ-chCD154 significantly decreased the mRNA expression of Toll-like receptor-4(TLR-4)and myeloid differentiation primary response gene 88(MyD88)in the cecum,and then inhibited the mRNA expression of NF-κB and pro-inflammatory cytokines(TNF-α and IL-6),and maintained the integrity of the intestinal tight junction proteins(zo-1,claudin-1,occlu-din).Compared with single protein pretreatment,chIFN-γ-chCD154 pretreatment significantly up-regulated the mRNA expression of the genes related to the vitamin D(VD)pathway(cyp27b1,VD receptor VDR,antimicrobial peptide AvBD7 and cathelicidin-b1)in S.typhimurium-infected peripheral blood mononuclear cells(PBMCs).The results of colony counting showed that the num-ber of S.typhimurium in the chIFN-γ-chCD154 group were the lowest.Also,chIFN-γ-chCD154 could up-regulate the relative abundance of beneficial bacteria such as Blautia,Ruminococcus,En-terococcus and Faecalibacterium,while down-regulate the relative abundance of harmful bacteria such as Staphylococcaceae in the cecum and improve the intestinal dysbiosis.In conclusion,chIFN-γ-chCD154 could activate the VD-antimicrobial peptide pathway and inhibit the TLR-4/MyD88/NF-κB inflammatory signaling pathway in S.typhimurium-infected chickens,which significantly improve the intestinal barrier function,reduce the inflammatory damage of liver and cecum,im-prove the structure of cecum microbial,promote the health of intestinal tract,and provide theoreti-cal basis for the development of chIFN-γ-chCD154 as a safe and effective alternative antibiotic.
4.Prevalence and association of hypomineralized second molars and deciduous teeth caries in 6-7 years children from Kaifeng, China
Yang LU ; Jingya GUO ; Chunlin LIU ; Zhaoxin ZHANG ; Mingzhen YANG ; Yimeng ZHANG ; Yanfang REN ; Jie JIA
Chinese Journal of Stomatology 2025;60(11):1240-1246
Objective:To investigate the incidence of hypomineralized second primary molars (HSPM) and deciduous teeth caries in school-aged children of Kaifeng City, and to discuss the association between HSPM and deciduous teeth caries, providing scientific guidance for clinical prevention and treatment.Methods:A cross-sectional study was carried out on first-grade children aged 6-7 years in five primary schools chosen from the eastern, western, southern, northern, and central areas of Kaifeng City by cluster random sampling method. The European Academy of Pediatric Dentistry criteria was used for scoring HSPM. The International Caries Detection and Assessment System (ICDAS-Ⅱ) was used to evaluate caries status.Results:This cross-sectional study was with a sample of 913 children. The prevalence of HSPM was 8.76% (80/913), with 39 boys and 41 girls, the most common type of which was atypical caries [35.00% (28/80)]. Regarding the distribution of HSPM, the incidence in maxilla [6.13% (56/913)] showed no statistically significant difference with that in the mandible [5.70% (52/913)] (χ2=0.16, P=0.692). In terms of severity, 56 cases were severe and 24 cases were mild. The association between HSPM and deciduous teeth caries was analyzed. The results showed that 56 had caries on their second primary molars among the 80 HSPM children. Children with HSPM had an increased risk of second deciduous molar decay compared to non-HSPM children ( OR=1.94, 95 %CI: 1.18-3.19, P<0.05); meanwhile, the deciduous teeth of HSPM children were more prone to suffer caries than those of non-HSPM children ( OR=2.33, 95 %CI: 1.26-4.29, P<0.05). Conclusions:The HSPM prevalence in school-aged children of Kaifeng City was 8.76%. Child with HSPM was more likely to have deciduous teeth caries than non-HSPM child. Special attention should be paid to children with HSPM after the eruption of affected molars.
5.Characteristics of psoriatic arthritis: a cross-sectional study based on a cohort of 530 patients
Jingya GAO ; Yiyi WANG ; Hongxiang HU ; Xiya PENG ; Min YANG ; Lingyan ZHANG ; Jing TANG ; Yue XIAO ; Dan HAO ; Xingli ZHOU ; Wei YAN ; Wei LI
Chinese Journal of Dermatology 2025;58(11):1053-1058
Objective:To investigate disease characteristics of patients with psoriatic arthritis (PsA) based on the PsA cohort in West China Hospital, so as to provide a reference for clinicians in its diagnosis, treatment, and evaluation strategy formulation.Methods:A cross-sectional study was carried out, and a descriptive analysis was conducted on clinical data from PsA patients who were treated at the Department of Dermatology, West China Hospital, Sichuan University between April 2, 2020, and January 21, 2025. Demographic characteristics, clinical manifestations, laboratory and imaging findings, and treatment modalities were analyzed.Results:A total of 530 PsA patients were included, of whom 332 (62.6%) were males and 198 (37.4%) were females, with ages of 44.1 ± 12.4 years. Skin lesions preceded joint symptoms in 452 patients (85.3%), with time intervals ( M [ Q1, Q3]) of 8.0 (3.0, 15.0) years. Overweight or obesity was observed in 319 patients (60.2%), and 188 (35.5%) had comorbid fatty liver. Peripheral joint involvement was common (485 cases, 91.5%), with the proximal interphalangeal joints being most frequently affected by tenderness (172 cases, 35.5%) and swelling (119 cases, 24.5%) ; the number of enthesitis cases identified by ultrasonography (116 cases, 23.9%) was significantly higher than that by clinical examination (82 cases, 15.5%) ; axial joint involvement was observed in 258 patients (48.7%), with the sacroiliac joints most commonly affected (201 cases, 77.9%). Regarding treatment, conventional systemic drugs were predominant in the treatment of psoriasis prior to the diagnosis of PsA; after the diagnosis of PsA, the number of patients receiving targeted therapies increased to 334 (63.0%), with interleukin-17 inhibitors being the most common (140 cases, 26.4%), followed by tumor necrosis factor-α inhibitors (106 cases, 20.0%) and Janus kinase inhibitors (39 cases, 7.4%) . Conclusions:PsA predominantly affects males over 40 years old and is characterized by preceding skin lesions, delayed diagnosis, and multiple comorbidities. High-frequency ultrasound has advantages in the early detection of peripheral enthesitis. Further attention is needed for managing comorbidities such as fatty liver and obesity-related metabolic conditions.
6.O-GlcNAcylation participates in initiation of SHH-type medulloblastoma by regulating Rack1 protein stability
Luo JINGYA ; Gao TANGQING ; Yang MENGMENG ; Yang HAIHONG
Chinese Journal of Clinical Oncology 2025;52(2):55-63
Objective:To investigate the role of O-GlcNAcylation in the regulation of the stability of receptor for activated C kinase 1(Rack1)during SHH-type medulloblastoma(SHH-MB)initiation.Methods:SHH-MB tumors and adjacent tissues were selected from the clinical tu-mor specimen library of the Department of Pathology at The General Hospital of Western Theater Command.Rack1 expression and O-GlcNAcylation(O-GlcNAc)levels in these tumor tissues were analyzed.The human medulloblastoma cell line Daoy was treated with a glyc-osyltransferase(OGT)inhibitor(OSMI-1)and adeglycosyltransferase(OGA)inhibitor(TM-G),and their impact on tumor cell proliferation was assessed using a Cell Counting Kit-8(CCK-8)and immunofluorescence staining.The O-GlcNAc enzyme labeling system co-immunoprecipita-tion(Co-IP)and Western blot were used to correlate Rack1 protein levels with O-GlcNAc levels.The impact of O-GlcNAcon Rack1 stability was confirmed using cycloheximide(CHX)and ubiquitination modification experiments.In a medulloblastoma mouse model with Rack1 knockdown,tumor cell proliferation was detected using a Cell Counting Kit-8(CCK-8),immunofluorescence staining,and a scratch assay.Xenograft tumors were transplanted into immunodeficient mice and SHH signaling was detected by Western blot in the obtained tissue samples(sh-NC and sh-Rack1)to verify the role of Rack1 protein in SHH-MB.Results:Rack1 and O-GlcNAcylation levels were significantly in-creased in SHH-MB tumor samples,and a negative correlation was observed between Rack1 levels and patient survival rates.Treatment of Daoy cells with OGT and TM-G revealed that O-GlcNAc significantly promotes Daoy cell proliferation,while inhibiting O-GlcNAc impedes tu-mor cell proliferation.Molecular experiments have confirmed that O-GlcNAc modification of Rack1 protein can regulate tumor cell stability,thereby promoting tumor cell proliferation.When Rack1 expression was knocked down in Daoy cells,cell proliferation was significantly re-duced relative to control cells.Accordingly,proliferation was significantly inhibited in tumor tissues with Rack1 protein knockdown in mouse models,suggesting that Rack1 can participate in the initiation of SHH-MB by regulating SHH signaling.Conclusions:O-GlcNAcylation particip-ates in SHH-MB initiation by regulating Rack1 stability.
7.A preliminary study on the effect of transcranial magnetic stimulation on refractory migraine and brain network mechanism
Xiyue FAN ; Jingya DENG ; Xiaoming WANG ; Dan YANG ; Chen GOU ; Tingting PENG ; Shuangfeng YANG
Chinese Journal of Neurology 2025;58(4):372-379
Objective:To explore the clinical efficacy, safety and possible neuroimaging mechanism of deep transcranial magnetic stimulation (dTMS) and repetitive transcranial magnetic stimulation (rTMS) in the treatment of refractory migraine.Methods:Thirty patients with refractory migraine were selected from the Department of Neurology, Affiliated Hospital of North Sichuan Medical College from October 2022 to August 2023. The patients were randomly divided into dTMS group ( n=10), rTMS group ( n=10) and sham stimulation group ( n=10). The dTMS group was treated with H7 coil and the rTMS group with "8" coil, and the sham stimulation group was treated with sham stimulation rTMS with the frequency of 10 Hz. The stimulation site was the contralateral primary motor cortex (M1) of headache, which was treated for 2 weeks (3 600 pulses per time, 5 times per week, 10 times in total). Visual Analogue Scale (VAS) and Headache Impact Test-6 (HIT-6) evaluations were performed before treatment, on the first day after treatment, and 1, 3 and 6 months after treatment. The resting-state functional magnetic resonance images of the 3 groups of patients before and after treatment were collected and analyzed by MATLAB2018b, SPM12 and RESTPLUS softwares, and the brain regions with different regional homogeneity (ReHo) before and after treatment were obtained. The general clinical data and scale scoring data were analyzed and processed by SPSS 26.0 version software. Results:There were significant differences in VAS scores among the dTMS group (before treatment 6.70±0.68, the first day after treatment 5.60±0.70, 1 month after treatment 5.00±0.82, 3 months after treatment 3.50±0.85, 6 months after treatment 3.90±1.45), the rTMS group (before treatment 6.90±0.74, the first day after treatment 5.90±0.74, 1 month after treatment 5.30±0.82, 3 months after treatment 5.30±0.82, 6 months after treatment 6.80±0.63) and the sham stimulation group (before treatment 6.60±0.97, the first day after treatment 6.70±0.95, 1 month after treatment 6.90±1.10, 3 months after treatment 6.70±0.68, 6 months after treatment 7.10±0.88; F=16.054, P<0.001), VAS scores among different time points ( F=34.292, P<0.001), and the interaction between groups and time ( F=24.136, P<0.001). Compared with those before treatment, VAS scores in the dTMS group and the rTMS group decreased on the first day after treatment, 1 month and 3 months after treatment (all P<0.05); VAS scores decreased in the dTMS group 6 months after treatment ( P<0.05). Compared with the sham stimulation group, the VAS scores of the dTMS group were lower at the same time points after treatment (all P<0.05), and the VAS scores of the rTMS group were lower on the first day after treatment, 1 month and 3 months after treatment (all P<0.05). Compared with the rTMS group, VAS scores were lower at 3 and 6 months after dTMS treatment (both P<0.05). There were significant differences in HIT-6 scores among groups ( F=13.173, P<0.001), HIT-6 scores among different time points ( F=60.788, P<0.001), and interaction between groups and time ( F=35.576, P<0.001). Compared with those before treatment, the HIT-6 scores in the dTMS group decreased on the first day after treatment ( P<0.05); the HIT-6 scores in the dTMS group and the rTMS group decreased 1 month and 3 months after treatment (both P<0.05); the HIT-6 scores decreased in the dTMS group 6 months after treatment ( P<0.05). Compared with the sham stimulation group, the HIT-6 scores were lower in the dTMS group at the same time points after treatment (all P<0.05), and the HIT-6 scores were lower in the rTMS group at 1 and 3 months after treatment (both P<0.05). Compared with the rTMS group, HIT-6 scores were lower at 3 and 6 months after dTMS treatment (both P<0.05). Analysis of ReHo results: compared with those before treatment, the ReHo values of the right cerebellar angle area 1 increased in the dTMS group and the sham stimulation group, decreased in the rTMS group. The ReHo values of the right middle occipital gyrus, left dorsolateral superior frontal gyrus and right cerebellar area 8 increased in the dTMS group, but decreased in the rTMS group and the sham stimulation group. The ReHo values of the left precentral gyrus and left superior temporal gyrus decreased in the dTMS group, while those in the rTMS group and the sham stimulation group increased. There were no obvious adverse reactions in the 3 groups during the treatment and follow-up period. Conclusions:dTMS and rTMS may help to improve the headache degree and quality of life of patients with refractory migraine, and they are safe, which may be related to the changes of brain network in the right cerebellar angle area 1, right middle occipital gyrus, left dorsolateral superior frontal gyrus, left precentral gyrus, left superior temporal gyrus and right cerebellar area 8.
8.Prevalence and association of hypomineralized second molars and deciduous teeth caries in 6-7 years children from Kaifeng, China
Yang LU ; Jingya GUO ; Chunlin LIU ; Zhaoxin ZHANG ; Mingzhen YANG ; Yimeng ZHANG ; Yanfang REN ; Jie JIA
Chinese Journal of Stomatology 2025;60(11):1240-1246
Objective:To investigate the incidence of hypomineralized second primary molars (HSPM) and deciduous teeth caries in school-aged children of Kaifeng City, and to discuss the association between HSPM and deciduous teeth caries, providing scientific guidance for clinical prevention and treatment.Methods:A cross-sectional study was carried out on first-grade children aged 6-7 years in five primary schools chosen from the eastern, western, southern, northern, and central areas of Kaifeng City by cluster random sampling method. The European Academy of Pediatric Dentistry criteria was used for scoring HSPM. The International Caries Detection and Assessment System (ICDAS-Ⅱ) was used to evaluate caries status.Results:This cross-sectional study was with a sample of 913 children. The prevalence of HSPM was 8.76% (80/913), with 39 boys and 41 girls, the most common type of which was atypical caries [35.00% (28/80)]. Regarding the distribution of HSPM, the incidence in maxilla [6.13% (56/913)] showed no statistically significant difference with that in the mandible [5.70% (52/913)] (χ2=0.16, P=0.692). In terms of severity, 56 cases were severe and 24 cases were mild. The association between HSPM and deciduous teeth caries was analyzed. The results showed that 56 had caries on their second primary molars among the 80 HSPM children. Children with HSPM had an increased risk of second deciduous molar decay compared to non-HSPM children ( OR=1.94, 95 %CI: 1.18-3.19, P<0.05); meanwhile, the deciduous teeth of HSPM children were more prone to suffer caries than those of non-HSPM children ( OR=2.33, 95 %CI: 1.26-4.29, P<0.05). Conclusions:The HSPM prevalence in school-aged children of Kaifeng City was 8.76%. Child with HSPM was more likely to have deciduous teeth caries than non-HSPM child. Special attention should be paid to children with HSPM after the eruption of affected molars.
9.Characteristics of psoriatic arthritis: a cross-sectional study based on a cohort of 530 patients
Jingya GAO ; Yiyi WANG ; Hongxiang HU ; Xiya PENG ; Min YANG ; Lingyan ZHANG ; Jing TANG ; Yue XIAO ; Dan HAO ; Xingli ZHOU ; Wei YAN ; Wei LI
Chinese Journal of Dermatology 2025;58(11):1053-1058
Objective:To investigate disease characteristics of patients with psoriatic arthritis (PsA) based on the PsA cohort in West China Hospital, so as to provide a reference for clinicians in its diagnosis, treatment, and evaluation strategy formulation.Methods:A cross-sectional study was carried out, and a descriptive analysis was conducted on clinical data from PsA patients who were treated at the Department of Dermatology, West China Hospital, Sichuan University between April 2, 2020, and January 21, 2025. Demographic characteristics, clinical manifestations, laboratory and imaging findings, and treatment modalities were analyzed.Results:A total of 530 PsA patients were included, of whom 332 (62.6%) were males and 198 (37.4%) were females, with ages of 44.1 ± 12.4 years. Skin lesions preceded joint symptoms in 452 patients (85.3%), with time intervals ( M [ Q1, Q3]) of 8.0 (3.0, 15.0) years. Overweight or obesity was observed in 319 patients (60.2%), and 188 (35.5%) had comorbid fatty liver. Peripheral joint involvement was common (485 cases, 91.5%), with the proximal interphalangeal joints being most frequently affected by tenderness (172 cases, 35.5%) and swelling (119 cases, 24.5%) ; the number of enthesitis cases identified by ultrasonography (116 cases, 23.9%) was significantly higher than that by clinical examination (82 cases, 15.5%) ; axial joint involvement was observed in 258 patients (48.7%), with the sacroiliac joints most commonly affected (201 cases, 77.9%). Regarding treatment, conventional systemic drugs were predominant in the treatment of psoriasis prior to the diagnosis of PsA; after the diagnosis of PsA, the number of patients receiving targeted therapies increased to 334 (63.0%), with interleukin-17 inhibitors being the most common (140 cases, 26.4%), followed by tumor necrosis factor-α inhibitors (106 cases, 20.0%) and Janus kinase inhibitors (39 cases, 7.4%) . Conclusions:PsA predominantly affects males over 40 years old and is characterized by preceding skin lesions, delayed diagnosis, and multiple comorbidities. High-frequency ultrasound has advantages in the early detection of peripheral enthesitis. Further attention is needed for managing comorbidities such as fatty liver and obesity-related metabolic conditions.
10.Effect of Yishen Zhuyu Tongluo Decoction on chondrocyte pyroptosis and ferroptosis in rats with knee osteoarthritis
Jingya WANG ; Kang YAN ; Jian LI ; Meng WANG ; Yuyang YANG ; Yueyue YU
Chinese Journal of Comparative Medicine 2025;35(1):49-58
Objective To investigate the effects of Yishen Zhuyu Tongluo Decoction on chondrocyte pyroptosis and ferroptosis in rats with knee osteoarthritis(KOA).Methods Forty SD were divided randomly into a sham operation group(n=10)and a modeling group(n=30).A KOA model was established in the modeling group by anterior cruciate ligament transection of the right hind limb knee joint.The drawer test was used to confirm the successful establishment of the model.Post-surgery,the rats were subjected to 30 min of forced activity daily to induce KOA.Lameness and hopping movements were observed after 4 weeks,and hematoxylin and eosin staining confirmed cartilage surface damage,deformation,and inflammatory cell infiltration,indicating successful modeling.The model rats were then assigned randomly to a model group(n=8),celecoxib group(n=8),and Yishen Zhuyu Tongluo Decoction group(n=8).The sham operation and model groups received 10 mL/kg of saline by gavage,the celecoxib group received 12 mg/kg of celecoxib solution,and the Yishen Zhuyu Tongluo Decoction group received 5.4 g/kg of the herbal decoction,once daily for 8 weeks.After the interventions,the rats were anesthetized,blood was collected from the abdominal aorta and serum was separated,and the knee joints were isolated.Three samples were fixed in paraformaldehyde,while the remaining cartilage tissue was reserved.Pathological changes in joint cartilage were observed by hematoxylin and eosin and Safranin O-Fast Green staining.Bone microstructure was analyzed using micro-computed tomography.Serum interleukin(IL)-1β and IL-18 protein levels were detected by enzyme-linked immunosorbent assay.Relative mRNA expression levels of NLRP3,ASC,Caspase-1,GSDMD,IL-1β,IL-18,ACSL-4,FTH-1,GPX-4,and cyclooxygenase(COX)-2 were detected by reverse transcription quantitative real-time PCR,and protein expression of NLRP3,Caspase-1,and COX-2 were detected by immunohistochemistry.Results Compared with the sham operation group,model rats showed surface damage and deformation of cartilage tissue,disordered cell arrangement in all layers,significant loss of Safranin O-Fast Green staining,and sparse and irregular trabecular bone distribution.Serum levels of the inflammatory factors IL-1β and IL-18 were elevated(P<0.01).mRNA expression levels of NLRP3,ASC,Caspase-1,GSDMD,IL-1β,IL-18,ACSL-4,and COX-2 were also significantly increased(all P<0.01),while FTH-1 and GPX-4 mRNA expression levels were decreased(P<0.01).Compared with the model group,rats in the celecoxib and Yishen Zhuyu Tongluo Decoction groups showed smoother and more intact cartilage surfaces,significantly increased cell counts,less loss of Safranin O-Fast Green staining,denser trabecular bone,and thicker cortical bone,with improved bone microstructure.Serum IL-1β and IL-18 levels were reduced(P<0.01),NLRP3(P<0.01,P<0.05),ASC,Capase-1,GSDMD,IL-1β,IL-18,ACSL-4,and COX-2 mRNA levels were decreased(all P<0.01),and relative expression levels of FTH-1 and GPX-4 mRNA were significantly increased(P<0.01).Conclusions Yishen Zhuyu Tongluo Decoction can treat KOA by inhibiting chondroptosis and ferroptosis in chondrocytes,reducing serum IL-1β and IL-18 levels,and improving bone microstructure.

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