1.Analysis of the safety, economic benefit and social psychological satisfaction of day breast conserving surgery for breast cancer
Jiao ZHOU ; Xiaoxiao XIAO ; Jiabin YANG ; Yu FENG ; Huanzuo YANG ; Mengxue QIU ; Qing ZHANG ; Yang LIU ; Mingjun HUANG ; Peng LIANG ; Zhenggui DU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(02):160-166
Objective To investigate the safety, economic benefits and psychological effects of day breast conserving surgery for breast cancer. Methods The demographic data and clinical data of breast cancer patients undergoing day (day surgery group) and ward (ward surgery group) breast conserving surgeries in West China Hospital of Sichuan University from March 2020 to June 2021 were retrospectively collected; the demographic data, clinical data, medical and related transportation costs, and preoperative and postoperative BREAST-Q scores of breast cancer patients undergoing day (day surgery group) and ward (ward surgery group) breast conserving surgery in West China Hospital of Sichuan University from June 2021 to June 2022 were prospectively collected. The safety, economic benefit, and psychological satisfaction of day surgery was analyzed. Results A total of 42 women with breast cancer were included in the retrospective study and 39 women with breast cancer were included in the prospective study. In both prospective and retrospective studies, the mean age of patients in both groups were <50 years. There were only statistical differences between the two groups in the aspects of hypertension (P=0.022), neoadjuvant chemotherapy (P=0.037) and postoperative pathological estrogen receptor (P=0.033) in the prospective study. In postoperative complications, there were no statistical differences in the surgical-related complications or anesthesia-related complications between the two groups in either the prospective study or the retrospective study (P>0.05). In terms of the overall cost, we found that the day surgery group was more economical than the ward surgery group in the prospective study (P=0.002). There were no statistical differences in postoperative psychosocical well-being, sexual well-being, satisfaction with breasts or chest condition between the two groups (P>0.05). Conclusion It is safe and reliable to carry out breast conserving surgery in day surgery center under strict management standards, which can save medical costs and will not cause great psychological burden to patients.
2.Enzyme-directed Immobilization Strategies for Biosensor Applications
Xing-Bao WANG ; Yao-Hong MA ; Yun-Long XUE ; Xiao-Zhen HUANG ; Yue SHAO ; Yi YU ; Bing-Lian WANG ; Qing-Ai LIU ; Li-He ZHANG ; Wei-Li GONG
Progress in Biochemistry and Biophysics 2025;52(2):374-394
Immobilized enzyme-based enzyme electrode biosensors, characterized by high sensitivity and efficiency, strong specificity, and compact size, demonstrate broad application prospects in life science research, disease diagnosis and monitoring, etc. Immobilization of enzyme is a critical step in determining the performance (stability, sensitivity, and reproducibility) of the biosensors. Random immobilization (physical adsorption, covalent cross-linking, etc.) can easily bring about problems, such as decreased enzyme activity and relatively unstable immobilization. Whereas, directional immobilization utilizing amino acid residue mutation, affinity peptide fusion, or nucleotide-specific binding to restrict the orientation of the enzymes provides new possibilities to solve the problems caused by random immobilization. In this paper, the principles, advantages and disadvantages and the application progress of enzyme electrode biosensors of different directional immobilization strategies for enzyme molecular sensing elements by specific amino acids (lysine, histidine, cysteine, unnatural amino acid) with functional groups introduced based on site-specific mutation, affinity peptides (gold binding peptides, carbon binding peptides, carbohydrate binding domains) fused through genetic engineering, and specific binding between nucleotides and target enzymes (proteins) were reviewed, and the application fields, advantages and limitations of various immobilized enzyme interface characterization techniques were discussed, hoping to provide theoretical and technical guidance for the creation of high-performance enzyme sensing elements and the manufacture of enzyme electrode sensors.
3.The multi-center mid-term clinical outcomes of combined complete preservation of chordal structure mitral valve replacement with total anatomic complete arterial myocardial revascularization for coronary patients with moderate-to-severe or severe ischemic mitral regurgitation
Ke GUO ; Xujun CHEN ; Baoshi ZHENG ; Chao SHI ; Keli HUANG ; Yong CAO ; Chengquan LIAO ; Jingwei CHEN ; Yu LIN ; Chengxin LIU ; Quansheng CAO ; Lin SHEN ; Zhendong WANG
Chinese Journal of Surgery 2025;63(1):58-67
Objective:To evaluate the clinical outcomes of combined complete preservation of chordal structure mitral valve replacement (C-MVR) with total anatomical arterial myocardial revascularization (TACR) in coronary patients with moderate-to-severe or severe ischemic mitral regurgitation (IMR).Methods:This is a retrospective multi-center case series study. Data were retrospectively collected from 127 patients with coronary artery disease with moderate to severe or severe IMR who received TACR with C-MVR from July 2015 to April 2024 in 13 hospitals in China. There were 90 males and 37 females, aged (56.5±10.7) years (range: 33 to 74 years). Perioperative data and follow-up data including left ventricular ejection fraction, left ventricular end-diastolic diameter, and patency rate of arterial grafts of patients were collected. Comparisons were made using paired sample t-test or χ2 test. Results:In this cohort of 127 patients, 67 underwent concurrent tricuspid valve repair. During surgery, 113 grafts of the left internal mammary artery (LIMA), 127 grafts of the left radial artery, 80 grafts of the right radial artery, and 110 grafts of the right internal mammary artery (RIMA) were harvested. The number of the distal anastomosis was 4.2±0.4 (range: 3 to 5). The aortic cross-clamp time and cardiopulmonary bypass time were (97.5±23.4) minutes (range: 90 to 161 minutes) and (145.4±19.2) minutes (range: 101 to 210 minutes), respectively. There was one operative death. Intraoperative placement of an intra-aortic balloon pump was performed in 21 patients to improve the left ventricular ejection. No sternal ischemic occurred. All patients completed follow-up, with a mean follow-up period of (64.3±7.5) months (range: 4 to 110 months). No major cerebrovascular events occurred during the follow-up period, and all patients survived. Left ventricular ejection fraction improved postoperatively (55.0%±5.3% vs. 41.0%±15.3%, t=17.23, P<0.01). The proportion of patients with New York Heart Association functional class ≤2 increased postoperatively (23.6% (30/127) vs. 87.3% (110/126), χ2=103.77, P<0.01). The proportion of patients with Canadian Cardiovascular Society Angina Classification ≤3 decreased postoperatively (4.8% (6/126) vs. 78.7% (100/127), χ2=142.19, P<0.01). The left ventricular end-diastolic diameter decreased postoperatively ((5.70±4.50) cm vs. (6.10±0.23) cm, t=12.15, P<0.01). Coronary multi-detector computed tomography angiography (MDCTA) follow-up was conducted for (60.5±11.7) months (range: 6 to 109 months) postoperatively. MDCTA confirmed the patency rates of the grafts: 96.4% (108/112) for the LIMA grafts, 88.9% (112/126) for the left radial artery grafts, 93.7% (74/79) for the right radial artery grafts, and 90.9% (100/110) for the free RIMA grafts. No significant differences in graft patency rates were observed between the arterial grafts ( χ2=5.24, P=0.155). Conclusion:The results of this multi-centre study demonstrate satisfactory mid-term results of C-MVR with TACR for the treatment of coronary artery disease with moderate to severe or severe IMR.
4.The multi-center mid-term clinical outcomes of combined complete preservation of chordal structure mitral valve replacement with total anatomic complete arterial myocardial revascularization for coronary patients with moderate-to-severe or severe ischemic mitral regurgitation
Ke GUO ; Xujun CHEN ; Baoshi ZHENG ; Chao SHI ; Keli HUANG ; Yong CAO ; Chengquan LIAO ; Jingwei CHEN ; Yu LIN ; Chengxin LIU ; Quansheng CAO ; Lin SHEN ; Zhendong WANG
Chinese Journal of Surgery 2025;63(1):58-67
Objective:To evaluate the clinical outcomes of combined complete preservation of chordal structure mitral valve replacement (C-MVR) with total anatomical arterial myocardial revascularization (TACR) in coronary patients with moderate-to-severe or severe ischemic mitral regurgitation (IMR).Methods:This is a retrospective multi-center case series study. Data were retrospectively collected from 127 patients with coronary artery disease with moderate to severe or severe IMR who received TACR with C-MVR from July 2015 to April 2024 in 13 hospitals in China. There were 90 males and 37 females, aged (56.5±10.7) years (range: 33 to 74 years). Perioperative data and follow-up data including left ventricular ejection fraction, left ventricular end-diastolic diameter, and patency rate of arterial grafts of patients were collected. Comparisons were made using paired sample t-test or χ2 test. Results:In this cohort of 127 patients, 67 underwent concurrent tricuspid valve repair. During surgery, 113 grafts of the left internal mammary artery (LIMA), 127 grafts of the left radial artery, 80 grafts of the right radial artery, and 110 grafts of the right internal mammary artery (RIMA) were harvested. The number of the distal anastomosis was 4.2±0.4 (range: 3 to 5). The aortic cross-clamp time and cardiopulmonary bypass time were (97.5±23.4) minutes (range: 90 to 161 minutes) and (145.4±19.2) minutes (range: 101 to 210 minutes), respectively. There was one operative death. Intraoperative placement of an intra-aortic balloon pump was performed in 21 patients to improve the left ventricular ejection. No sternal ischemic occurred. All patients completed follow-up, with a mean follow-up period of (64.3±7.5) months (range: 4 to 110 months). No major cerebrovascular events occurred during the follow-up period, and all patients survived. Left ventricular ejection fraction improved postoperatively (55.0%±5.3% vs. 41.0%±15.3%, t=17.23, P<0.01). The proportion of patients with New York Heart Association functional class ≤2 increased postoperatively (23.6% (30/127) vs. 87.3% (110/126), χ2=103.77, P<0.01). The proportion of patients with Canadian Cardiovascular Society Angina Classification ≤3 decreased postoperatively (4.8% (6/126) vs. 78.7% (100/127), χ2=142.19, P<0.01). The left ventricular end-diastolic diameter decreased postoperatively ((5.70±4.50) cm vs. (6.10±0.23) cm, t=12.15, P<0.01). Coronary multi-detector computed tomography angiography (MDCTA) follow-up was conducted for (60.5±11.7) months (range: 6 to 109 months) postoperatively. MDCTA confirmed the patency rates of the grafts: 96.4% (108/112) for the LIMA grafts, 88.9% (112/126) for the left radial artery grafts, 93.7% (74/79) for the right radial artery grafts, and 90.9% (100/110) for the free RIMA grafts. No significant differences in graft patency rates were observed between the arterial grafts ( χ2=5.24, P=0.155). Conclusion:The results of this multi-centre study demonstrate satisfactory mid-term results of C-MVR with TACR for the treatment of coronary artery disease with moderate to severe or severe IMR.
5.Changes in glucose metabolism and intestinal flora in patients with type 2 diabetes mellitus after high-intensity intermittent exercise
Hanglin YU ; Haodong TIAN ; Shiyuan WEN ; Li HUANG ; Haowei LIU ; Hansen LI ; Peisong WANG ; Li PENG
Chinese Journal of Tissue Engineering Research 2025;29(2):286-293
BACKGROUND:Exercise has a regulatory effect on intestinal flora and glucose metabolism,but the effects of high-intensity intermittent exercise on intestinal flora and glucose metabolism in patients with type 2 diabetes mellitus are unclear. OBJECTIVE:To investigate the effects of high-intensity intermittent exercise on glucose metabolism and intestinal flora in patients with type 2 diabetes mellitus. METHODS:Eleven patients with type 2 diabetes mellitus were recruited,among which,two were lost to the follow-up and nine were finally enrolled.High-intensity intermittent exercise intervention was conducted 3 times per week for 6 continuous weeks.Fasting blood and fecal samples were collected before and after the intervention.Glucose metabolism indexes were detected in the blood samples,and intestinal flora was detected in the fecal samples.Changes in glucose metabolism indexes and intestinal flora indexes of the patients with type 2 diabetes mellitus before and after the intervention were compared. RESULTS AND CONCLUSION:After 6 weeks of high-intensity intermittent exercise intervention,fasting blood glucose and glycosylated serum protein levels in patients were significantly reduced(P<0.05),and fasting insulin,although not significantly changed,was decreased compared with before intervention.Alpha diversity analysis showed that the diversity(Shannon index),richness(Chao index)and coverage(Coverage index)did not change significantly.Venn diagrams showed that the relative abundance of Bacteroidetes,Actinobacteria,Proteobacteria,and Fusobacteria in the intestinal flora of the patients increased,and the relative abundance of Firmicutes decreased,and a significant decrease was seen in Ruminococcus_torques and Ruminococcus_gnavus in the Firmicutes,which were both positively correlated with the abnormalities of the glycemic metabolism-related indicators,as well as with other disease development.All these findings indicate that high-intensity intermittent exercise intervention has an improvement effect on the glycemic metabolism-related indexes of patients with type 2 diabetes mellitus,and the abundance of beneficial flora in the intestinal tract increases,and the abundance of harmful flora decreased,enhancing the stability of the intestinal flora in patients.
6.Constructing rabbit intervertebral disc degeneration models by different methods under X-ray guidance:a comparative study
Zhili DING ; Jie HUANG ; Qiang JIANG ; Tusheng LI ; Jiang LIU ; Yu DING
Chinese Journal of Tissue Engineering Research 2025;29(5):995-1002
BACKGROUND:Scholars at home and abroad consider New Zealand rabbits to be an ideal model animal because of the similar anatomical morphology of the lumbar spine to that of the human lumbar spine.There is a lack of systematic comparison of different ways to establish rabbit intervertebral disc degeneration models under X-ray guidance. OBJECTIVE:To establish a rabbit model of lumbar disc degeneration using X-ray guided acupuncture,end-plate injection and combined method,and to compare the modeling effects of these three methods. METHODS:Eighteen 6-month-old New Zealand white rabbits were randomly selected and divided into four groups:acupuncture group,endplate injection group,combined group and blank control group.In the acupuncture group,three consecutive segments of the intervertebral discs(L2/3,L3/4,L4/5)were needled and modeled;in the endplate injection group,50 μL of anhydrous ethanol was injected at a single point on the endplates of the three consecutive segmental discs;in the combined group,three consecutive segmental intervertebral discs were needled and injected with 50 μL of anhydrous ethanol at four azimuthal points on the endplates of the corresponding segmental discs;and the blank control group received no interventions.X-ray examination was performed to measure the disc height index at 2,4,and 8 weeks after surgery.The intervertebral disc tissues were then taken for anatomical observation and pathological examination. RESULTS AND CONCLUSION:(1)Anatomical examination showed that fibrous annulus rupture,nucleus pulposus degeneration,and total disc structure disorder were the main manifestation in the acupuncture group,endplate injection group,and combined group,respectively.(2)X-ray examination showed that the disc height index showed the most obvious reduction in the acupuncture group at 2 weeks after operation,significant reductions in the endplate injection group at 2 and 4 weeks after operation,and significant reductions in the combined group at 2,4,and 8 weeks after operation.(3)Pathological examination showed that the fibrous ring structure was damaged and the inner annulus fibrosus protruded inward in the acupuncture group;endplate fissure,disordered arrangement and nucleus loss were observed in the endplate injection group;total disc structure disorder with the nucleus pulposus losing water and shrinking and no obvious border with the broken annulus fibrosus was found in the combined group.To conclude,acupuncture,endplate injection and the modified endplate injection method can establish the rabbit intervertebral disc degeneration model.Compared with the single method,the modified endplate injection method can greatly accelerate and aggravate the degeneration of the intervertebral disc,and can effectively shorten the experiment period.
7.Buzhong Yiqitang Regulates Endoplasmic Reticulum Stress to Attenuate Cisplatin Resistance in Non-small Cell Lung Cancer via Nrf2/ROS Pathway
Dan YU ; Qirui MU ; He LI ; Yuetong LIU ; Jingyi HUANG ; Yuan GAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):98-104
ObjectiveTo investigate the mechanism of Buzhong Yiqitang in attenuating cisplatin resistance in non-small cell lung cancer by observing the effects of Buzhong Yiqitang on endoplasmic reticulum stress-related molecules in human lung adenocarcinoma cells (A549) and cisplatin-resistant cells in human lung adenocarcinoma cells (A549/DDP) via the nuclear factor E2-related factor 2(Nrf2)/reactive oxygen species(ROS) pathway. MethodsThe serum containing Buzhong Yiqitang was prepared and A549 cells and A549/DDP cells were cultured. The cells were randomized into groups A (A549 cells+blank serum), B (A549 cells+20 mg·L-1 cisplatin+blank serum), C (A549 cells+20 mg·L-1 cisplatin+10% Buzhong Yiqitang-containing serum), D (A549/DDP cells+blank serum), E (A549/DDP cells+20 mg·L-1 cisplatin+blank serum), and F (A549/DDP cells+20 mg·L-1 cisplatin+10% Buzhong Yiqitang-containing serum). The cell counting kit-8 (CCK-8) method was used to detect the half maximal inhibitory concentration (IC50) of cisplatin. The protein levels of Nrf2 and p-Nrf2 were determined by Western blotting. The DCFH-DA fluorescent probe was used to measure the content of reactive oxygen species (ROS) in each group. The protein levels of glucose-regulated protein 78 (GRP78), activated transcription factor 6 (ATF6), and C/EBP-homologous protein (CHOP) were determined by Western blot. ResultsCompared with group B, group C showed a reduction in IC50 of cisplatin (P<0.05), which held true in group E compared with group F (P<0.05). Moreover, the IC50 of cisplatin to A549/DDP cells was higher than that to A549 cells before and after Buzhong Yiqitang intervention (P<0.05). Compared with group A, group B showed up-regulated protein levels of Nrf2 and p-Nrf2 (P<0.05). Compared with group B, group C showed down-regulated protein levels of Nrf2 and p-Nrf2 (P<0.05). Compared with group D, group E showed up-regulated protein levels of Nrf2 and p-Nrf2 (P<0.05), which, however, were significantly down-regulated in group F (P<0.05). The ROS content and the protein levels of GRP78, ATF6, and CHOP followed a descending trend of group C > group B > group A in A549 cells and group F > group E > group D in A549/DDP cells (P<0.05). Moreover, the ROS content and the protein levels of GRP78, ATF6, and CHOP in A549 cells were higher than those in A549/DDP cells before and after Buzhong Yiqitang intervention (P<0.05). ConclusionBuzhong Yiqitang may regulate endoplasmic reticulum stress via the Nrf2/ROS pathway to attenuate cisplatin resistance in non-small cell lung cancer.
8.Analysis and forecast of the disease burden of schistosomiasis in China from 1992 to 2030
Kai LIN ; Chenhuan ZHANG ; Zhendong XU ; Xuemei LI ; Renzhan HUANG ; Yawen LIU ; Haihang YU ; Lisi GU
Chinese Journal of Schistosomiasis Control 2025;37(1):24-34
Objective To analyze the trends in the disease burden of schistosomiasis in China from 1992 to 2021, and to project the disease burden of schistosomiasis in China from 2022 to 2030, so as to provide insights into the elimination of schistosomiasis in China. Methods The prevalence, age-standardized prevalence, disability-adjusted life year (DALYs) rate and age-standardized DALYs rate of schistosomiasis, as well as the years lost due to disability (YLDs) rate and age-standardized YLDs rate of anemia attributable to Schistosoma infections in China, the world and different socio-demographic index (SDI) regions were captured from the Global Burden of Disease Study 2021 (GBD 2021) data resources, and the trends in the disease burden due to schistosomiasis were evaluated with estimated annual percentage change (EAPC) and its 95% confidence interval (CI). In addition, the age, period and cohort effects on the prevalence of schistosomiasis were examined in China using an age-period-cohort (APC) model, and the disease burden of schistosomiasis was predicted in China from 2022 to 2030 using a Bayesian age-period-cohort (BAPC) model. Results The age-standardized prevalence and DALYs rate of schistosomiasis, and the age-standardized YLDs rate of anemia attributable to Schistosoma infections were 761.32/105, 5.55/105 and 0.38/105 in China in 2021. These rates were all lower than the global levels (1 914.30/105, 21.90/105 and 3.36/105, respectively), as well as those in the medium SDI regions (1 413.61/105, 12.10/105 and 1.93/105, respectively), low-medium SDI regions (2 461.03/105, 26.81/105 and 4.48/105, respectively), and low SDI regions (5 832.77/105, 94.48/105 and 10.65/105, respectively), but higher than those in the high SDI regions (59.47/105, 0.49/105 and 0.05/105, respectively) and high-medium SDI regions (123.11/105, 1.20/105 and 0.12/105, respectively). The prevalence and DALYs rate of schistosomiasis were higher among men (820.79/105 and 5.86/105, respectively) than among women (697.96/105 and 5.23/105, respectively) in China in 2021, while the YLDs rate of anemia attributable to Schistosoma infections was higher among women (0.66/105) than among men (0.12/105). The prevalence of schistosomiasis peaked at ages of 30 to 34 years among both men and women, while the DALYs rate of schistosomiasis peaked among men at ages of 15 to 19 years and among women at ages of 20 to 24 years. The age-standardized prevalence of schistosomiasis showed a moderate decline in China from 1992 to 2021 relative to different SDI regions [EAPC = -1.51%, 95% CI: (-1.65%, -1.38%)], while the age-standardized DALYs rate [EAPC = -3.61%, 95% CI: (-3.90%, -3.33%)] and age-standardized YLDs rate of anemia attributable to Schistosoma infections [EAPC = -4.16%, 95% CI: (-4.38%, -3.94%)] appeared the fastest decline in China from1992 to 2021 relative to different SDI regions. APC modeling showed age, period, and cohort effects on the trends in the prevalence of schistosomiasis in China from 1992 to 2021, and the prevalence of schistosomiasis appeared a rise followed by decline with age, and reduced with period and cohort. BAPC modeling revealed that the age-standardized prevalence and age-standardized DALYs rate of schistosomiasis, and age-standardized YLDs rate of anemia attributable to Schistosoma infections all appeared a tendency towards a decline in China from 2022 to 2030, which reduced to 722.72/105 [95% CI: (538.74/105, 906.68/105)], 5.19/105 [95% CI: (3.54/105, 6.84/105)] and 0.30/105 [95% CI: (0.21/105, 0.39/105)] in 2030, respectively. Conclusions The disease burden of schistosomiasis appeared a tendency towards a decline in China from 1992 to 2021, and is projected to appear a tendency towards a decline from 2022 to 2030. There are age, period and cohort effects on the prevalence of schistosomiasis in China. Precision schistosomiasis control is required with adaptations to current prevalence and elimination needs.
9.Total Saponins of Dioscoreae Nipponicae Rhizoma Alleviates Gouty Arthritis by Down-regulating COX-2-mediated M1 Macrophage Reprogramming
Lin HUANG ; Shumin LIU ; Huijuan SUN ; Geyu DENG ; Donghua YU ; Yu WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):200-207
ObjectiveTo explore the mechanism of total saponins of Dioscoreae Nipponicae Rhizoma (TSDN) in treating gouty arthritis (GA) by regulating cyclooxygenase-2 (COX-2)-mediated M1 macrophage reprogramming by in vivo and in vitro experiments. MethodsIn vivo experiment: 24 male SD rats were randomly allocated into blank, model (GA), TSDN, and celecoxib groups, with 6 rats in each group. After 7 days of administration, pathological changes in the ankle synovial tissue were observed via hematoxylin-eosin (HE) staining. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to quantify the mRNA levels of NOD-like receptor protein 3 (NLRP3) inflammasome, apoptosis-associated speck-like protein (ASC), Caspase-1, COX-2, interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) in the synovial tissue. Enzyme-linked immunosorbent assay (ELISA) was employed to measure the serum levels of inducible nitric oxide synthase (iNOS), IL-1β, CD86, CD80, CD206, and arginase-1 (Arg-1). In vitro experiment: The GA model was established by lipopolysaccharide (LPS) + MSU induction, and the inhibitor concentration was screened by the methyl thiazolyl tetrazolium (MTT) assay. RAW264.7 cells were allocated into blank, model, TSDN, dexamethasone, COX-2 inhibitor (celecoxib), and TSDN + COX-2 inhibitor groups. The levels of iNOS, IL-1β, CD86, CD80, CD206, and Arg-1 in the cell supernatant of each group were determined by enzyme-linked immunosorbent assay (ELISA). The mRNA and protein levels of NLRP3 inflammasome, COX-2, IL-1β, and TNF-α in each group were determined by Real-time PCR and Western blot, respectively. ResultsIn vivo experiment: compared with the model group, TSDN reduced the mRNA levels of NLRP3 inflammasome, COX-2, IL-1β, and TNF-α in the synovial tissue (P<0.05, P<0.01). ELISA results showed that TSDN lowered the serum levels of iNOS, IL-1β, CD86, and CD80 (P<0.01) while increasing the serum levels of CD206 and Arg-1 (P<0.01). In vitro experiment: compared with the model group, TSDN and inhibitor down-regulated the mRNA levels of NLRP3 inflammasome, COX-2, IL-1β, and TNF-α and the protein levels of NLRP3 inflammasome, COX-2, cleaved IL-1β, and TNF-α (P<0.01). Compared with TSDN alone, TSDN + COX-2 inhibitor further reduced the mRNA and protein levels of the markers above (P<0.01). Compared with the model group, TSDN and COX-2 inhibitor decreased the levels of IL-1β, iNOS, CD80, and CD86 (P<0.01) and increased the levels of CD206 and Arg-1 (P<0.01) in cells. Compared with TSDN alone, TSDN + COX-2 inhibitor reduced IL-1β, iNOS, CD80, and CD86 levels (P<0.05, P<0.01) and elevated CD206 and Arg-1 levels (P<0.01) in cells. ConclusionTSDN can alleviate GA by downregulating COX-2-mediated M1 macrophage reprogramming and suppressing the inflammatory factors.
10.Total Saponins of Dioscoreae Nipponicae Rhizoma Alleviates Gouty Arthritis by Down-regulating COX-2-mediated M1 Macrophage Reprogramming
Lin HUANG ; Shumin LIU ; Huijuan SUN ; Geyu DENG ; Donghua YU ; Yu WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):200-207
ObjectiveTo explore the mechanism of total saponins of Dioscoreae Nipponicae Rhizoma (TSDN) in treating gouty arthritis (GA) by regulating cyclooxygenase-2 (COX-2)-mediated M1 macrophage reprogramming by in vivo and in vitro experiments. MethodsIn vivo experiment: 24 male SD rats were randomly allocated into blank, model (GA), TSDN, and celecoxib groups, with 6 rats in each group. After 7 days of administration, pathological changes in the ankle synovial tissue were observed via hematoxylin-eosin (HE) staining. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to quantify the mRNA levels of NOD-like receptor protein 3 (NLRP3) inflammasome, apoptosis-associated speck-like protein (ASC), Caspase-1, COX-2, interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) in the synovial tissue. Enzyme-linked immunosorbent assay (ELISA) was employed to measure the serum levels of inducible nitric oxide synthase (iNOS), IL-1β, CD86, CD80, CD206, and arginase-1 (Arg-1). In vitro experiment: The GA model was established by lipopolysaccharide (LPS) + MSU induction, and the inhibitor concentration was screened by the methyl thiazolyl tetrazolium (MTT) assay. RAW264.7 cells were allocated into blank, model, TSDN, dexamethasone, COX-2 inhibitor (celecoxib), and TSDN + COX-2 inhibitor groups. The levels of iNOS, IL-1β, CD86, CD80, CD206, and Arg-1 in the cell supernatant of each group were determined by enzyme-linked immunosorbent assay (ELISA). The mRNA and protein levels of NLRP3 inflammasome, COX-2, IL-1β, and TNF-α in each group were determined by Real-time PCR and Western blot, respectively. ResultsIn vivo experiment: compared with the model group, TSDN reduced the mRNA levels of NLRP3 inflammasome, COX-2, IL-1β, and TNF-α in the synovial tissue (P<0.05, P<0.01). ELISA results showed that TSDN lowered the serum levels of iNOS, IL-1β, CD86, and CD80 (P<0.01) while increasing the serum levels of CD206 and Arg-1 (P<0.01). In vitro experiment: compared with the model group, TSDN and inhibitor down-regulated the mRNA levels of NLRP3 inflammasome, COX-2, IL-1β, and TNF-α and the protein levels of NLRP3 inflammasome, COX-2, cleaved IL-1β, and TNF-α (P<0.01). Compared with TSDN alone, TSDN + COX-2 inhibitor further reduced the mRNA and protein levels of the markers above (P<0.01). Compared with the model group, TSDN and COX-2 inhibitor decreased the levels of IL-1β, iNOS, CD80, and CD86 (P<0.01) and increased the levels of CD206 and Arg-1 (P<0.01) in cells. Compared with TSDN alone, TSDN + COX-2 inhibitor reduced IL-1β, iNOS, CD80, and CD86 levels (P<0.05, P<0.01) and elevated CD206 and Arg-1 levels (P<0.01) in cells. ConclusionTSDN can alleviate GA by downregulating COX-2-mediated M1 macrophage reprogramming and suppressing the inflammatory factors.

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