1.Theoretical Exploration of Diabetic Retinopathy Guided by Luobing Theory
Liping CHANG ; Jing MA ; Kun MA ; Zhenhua JIA ; Cong WEI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):253-258
		                        		
		                        			
		                        			Diabetic retinopathy(DR), as one of the most common and serious microvascular complications of diabetes mellitus, seriously threatens human health, and belongs to "Xiaoke eye diseases" in traditional Chinese medicine(TCM), which has been richly experienced by medical practitioners through the ages, but is mostly recorded in a piecemeal manner and has not been systematically researched. This disease is featured by long course and repeated attack, and is refractory, which belongs to the research category of "persistent illness entering collaterals". Systematic establishment of TCM collateral disease theory for guiding prevention and treatment of DR has important clinical value. On the basis of close correlation between tertiary collaterals at the terminal of collaterals and capillaries and microcirculation, the concept of "tertiary collaterals-microvascular" is proposed. It is pointed out that DR falls within the scope of "tertiary collaterals-microvascular" diseases, and presents four types of micro-pathological characteristics, including stasis, insufficiency, growth and bleeding of tertiary collaterals. It is concluded that "deficiency of both Qi and Yin" is the basic pathogenesis of DR, and "blood stasis and collateral obstruction" is the important pathogenesis and key factor. Thus, the treatment method of "dispersing blood stasis, dredging collateral, tonifying Qi and Yin, stopping hemorrhage and improving eyesight" is determined, and the formula of Tongluo Mingmu capsules is developed. The article tightly focuses on the pathological changes such as stasis, growth, insufficiency and bleeding of collaterals, addresses both symptoms and root causes, and plays a synergistic role of both dispersing stasis and stopping bleeding. In this way, it can realize the purpose of tonifying Qi and Yin to replenish the essence, dispersing stasis and dredging collaterals to meet the requirement, as well as stopping hemorrhage and improving eyesight to deal with changes. Fundamental researches demonstrate that Tongluo Mingmu capsules has synergy effects of protecting both retinal capillaries and retinal cells. Phase-Ⅲ clinical trial of new drug has proven definite clinical efficacy and good safety, which provides a new drug choice for enhancing clinical effect of DR, and further supports the scientific value of Luobing theory in preventing and treating DR and other clinically significant diseases. 
		                        		
		                        		
		                        		
		                        	
2.Evaluation of the Safety and Efficacy of Bone Cement in Experimental Pigs Using Vertebroplasty
Zhenhua LIN ; Xiangyu CHU ; Zhenxi WEI ; Chuanjun DONG ; Zenglin ZHAO ; Xiaoxia SUN ; Qingyu LI ; Qi ZHANG
Laboratory Animal and Comparative Medicine 2025;45(4):466-472
		                        		
		                        			
		                        			ObjectiveThe full name of vertebroplasty is percutaneous vertebroplasty (PVP). It is a clinical technique that injects bone cement into the diseased vertebral body to achieve strengthening of the vertebra. The research on the safety and efficacy of bone cement is the basis for clinical application. In this study, vertebroplasty is used to evaluate and compare the safety and efficacy of Tecres and radiopaque bone cement in experimental pigs, and to determine the puncture method suitable for pigs and the pre-clinical evaluation method for the safety and efficacy of bone cement. MethodsTwenty-four experimental pigs (with a body weight of 60-80 kg) were randomly divided into an experimental group (Group A) and a control group (Group B). Group A was the Tecres bone cement group, and Group B was the radiopaque bone cement group, with 12 pigs in each group. Under the monitoring of a C-arm X-ray machine, the materials were implanted into the 1st lumbar vertebra (L1) and 4th lumbar vertebra (L4) of the pigs via percutaneous puncture using the unilateral pedicle approach. The animals were euthanized at 4 weeks and 26 weeks after the operation, respectively. The L4 vertebrae were taken for compressive strength testing, and the L1 vertebrae were taken for hard tissue pathological examination to observe the inflammatory response, bone necrosis, and degree of osseointegration at the implantation site. ResultsThe test results of compressive strength between groups A and B showed no significant difference at 4 weeks and 26 weeks after bone cement implantation (P > 0.05). Observation under an optical microscope (×100) revealed that at 4 weeks postoperatively, both groups A and B showed that the bone cement was surrounded by proliferative fibrous tissue, with lymphocyte infiltration around it. The bone cement was combined with bone tissue, the trabecular arrangement was disordered, and osteoblasts and a small amount of osteoid were formed. At 26 weeks postoperatively, bone cement was visible in both groups A and B. The new bone tissue was mineralized, the trabeculae were fused, the trabecular structure was regular and dense with good continuity, and no obvious inflammatory reaction was observed. ConclusionIn experimental pig vertebrae, there were no significant differences observed in the compressive strength, inflammation response, bone destruction, and integration with the bone between Tecres and non-radiopaque bone cement. Both exhibited good biocompatibility and osteogenic properties. It indicates that using vertebroplasty to evaluate the safety and efficacy of bone cement in pigs is scientifically sound. 
		                        		
		                        		
		                        		
		                        	
3.Treatment of high ankle sprains with Suture-button elastic fixation assisted by arthroscopy
Wei XIE ; Jingjing ZHAO ; Cheng HAO ; Zi LI ; Zhenhua FANG
Chinese Journal of Tissue Engineering Research 2024;28(30):4848-4853
		                        		
		                        			
		                        			BACKGROUND:High ankle sprain is easily missed and leads to ankle dysfunction.Arthroscopy can detect hidden high ankle sprain.Suture-button elastic fixation can restore the biomechanical stability of the distal tibiofibular syndesmosis. OBJECTIVE:To explore the clinical efficacy of Suture-button elastic fixation for high ankle sprain under ankle arthroscopy. METHODS:A retrospective analysis was performed on 40 cases of high ankle sprain patients treated with Suture-button elastic fixation under ankle arthroscopy from August 2019 to August 2021 in the Department of Foot and Ankle Surgery,Wuhan Fourth Hospital.All patients underwent Suture-button elastic fixation.The American Orthopedic Foot and Ankle Society function score,Visual Analog Scale pain score,ankle range of motion,preoperative imaging data,and arthroscopic tibiofibular syndesmosis separation degree were recorded.Meislin criteria were used to evaluate the curative effect and postoperative complications were recorded. RESULTS AND CONCLUSION:(1)40 patients were followed up for 16-48 months after operation.(2)At the last follow-up,American Orthopedic Foot and Ankle Society score was(88.95±6.64 points).Visual Analog Scale score was(1.78±1.23 points).Ankle dorsiflexion range of motion was(33.50±5.79 degrees).Ankle plantarflexion range of motion was(34.50±5.97 degrees).There were statistically significant differences before and after surgery(P<0.05).(3)There was a low positive correlation between the radiographic separation index and the degree of arthroscopic separation(r=0.612,P<0.01).(4)The curative effect was evaluated by Meislin standard,with an excellent and good rate of 95%(38/40).Postoperative ankle joint pain was relieved,and ankle joint activities were significantly improved.(5)During the follow-up period,all patients had no nerve injury or incision infection.In 1 patient,the internal fixation was removed due to skin irritation and squatting sensation after operation.(6)It is concluded that Suture-button elastic fixation for high ankle sprain is effective under ankle arthroscopy in restoring ankle function and maintaining joint stability without the need for secondary removal,and it is worth clinical application.
		                        		
		                        		
		                        		
		                        	
4.Relationship between TFA-irAE after anti-PD-1 therapy and survival in advanced cancer patients
Wei GUO ; Donghui WANG ; Zhenhua WANG ; Zhaojun XUE
Journal of International Oncology 2024;51(8):481-486
		                        		
		                        			
		                        			Objective:To investigate the relationship between thyroid function abnormality-immune related adverse event (TFA-irAE) and treatment efficacy and survival in advanced cancer patients treated with programmed death-1 (PD-1) inhibitors.Methods:The clinical data of 90 patients with advanced cancer who received 6 cycles of PD-1 inhibitor treatment from January 2021 to June 2022 in Department of Oncology of Yuncheng Central Hospital Affiliated to Shanxi Medical University were collected. Serum levels of thyroid stimulating hormone (TSH), free thyroxine (FT 4), thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TGAb) were measured by chemiluminescence immunoassay in patients after PD-1 inhibitor treatment, and the incidence of TFA-irAE was observed in the patients after 6 cycles of therapy. According to the occurrence of TFA-irAE, the patients were divided into TFA-irAE occurrence group ( n=40) and TFA-irAE non-occurrence group ( n=50), the therapeutic efficacy and survival of the two groups were calculated and compared. The thyroid function indexes of patients with different efficacy (33 cases in effective group and 57 cases in ineffective group) and patients with different prognosis (30 cases in survival group, 60 cases in death group) were compared, and the influencing factors of efficacy and survival were analyzed by multivariate logistic regression and Cox analysis. Kaplan-Meier survival curve was drawn, and the survival of TFA-irAE occurrence group and TFA-irAE non-occurrence group were compared by log-rank test. Results:One year after treatment, the treatment effective rate of TFA-irAE occurrence group and TFA-irAE non-occurrence group were 42.5% (17/40), 32.0% (16/50), respectively, with no statistically significant difference ( χ2=1.06, P=0.304). After 6 cycles of PD-1 inhibitor treatment, serum levels of TSH [ (2.56±0.41) mU/ml vs. (3.11±0.53) mU/ml], TPOAb [ (56.78±5.72) U/ml vs. (62.67±6.31) U/ml] and TGAb [ (81.57±8.23) U/ml vs. (92.34±9.31) U/ml] in the effective group were significantly lower than those in the ineffective group, with statistically significant differences ( t=4.45, P<0.001; t=3.89, P<0.001; t=5.29, P<0.001). The serum levels of TSH [ (2.69±0.46) mU/ml vs. (3.06±0.65) mU/ml], FT 4 [ (10.45±1.13) pmol/L vs. (11.50±1.36) pmol/L], TPOAb [ (56.27±5.61) U/ml vs. (62.47±6.34) U/ml] and TGAb [ (81.62±8.31) U/ml vs. (91.73±9.35) U/ml] in the survival group were significantly lower than those in the death group, with statistically significant differences ( t=2.27, P=0.025; t=3.02, P=0.003; t=3.79, P<0.001; t=4.19, P<0.001). Multivariate logistic regression analysis showed that TSH ( OR=1.52, 95% CI: 1.13-2.05, P=0.006), TPOAb ( OR=1.42, 95% CI: 1.13-1.78, P=0.002) and TGAb ( OR=1.35, 95% CI: 1.05-1.73, P=0.018) were all independent factors affecting the efficacy of patients with advanced cancer treated with PD-1 inhibitors. Multivariate Cox regression analysis showed that TSH ( HR=1.42, 95% CI: 1.06-1.92, P=0.030), TPOAb ( HR=1.31, 95% CI: 1.05-1.64, P=0.018), TGAb ( HR=1.41, 95% CI: 1.09-1.83, P=0.008) and FT 4 ( HR=1.36, 95% CI: 1.02-1.81, P=0.038) were all independent factors affecting the survival of patients with advanced cancer treated with PD-1 inhibitors. Survival analysis showed that the median overall survival in the TFA-irAE occurrence group and the TFA-irAE non-occurrence group were 10.8 and 8.0 months, respectively, with a statistically significant difference ( χ2=9.53, P=0.002) . Conclusion:Although the occurrence of TFA-irAE may have less effect on the efficacy of advanced tumor patients treated with PD-1 inhibitors, it may affect the survival of patients. TSH, TPOAb and TGAb are all independent influencing factors for the efficacy of patients with advanced tumors treated with PD-1 inhibitors, while TSH, TPOAb, TGAb and FT 4 are independent influencing factors for the survival of patients with advanced tumors treated with PD-1 inhibitors.
		                        		
		                        		
		                        		
		                        	
5.Comprehensive evaluation of single-anastomosis duodenal-ileal bypass with sleeve gastrectomy in obese patients based on efficacy and nutrition
Lifu HU ; Lun WANG ; Shixing LI ; Yang LIU ; Zheng ZHANG ; Minghao XIAO ; Zhenhua ZHANG ; Zhiqiang WEI ; Liang CUI ; Tao JIANG
Chinese Journal of Gastrointestinal Surgery 2024;27(9):945-952
		                        		
		                        			
		                        			Objective:To evaluate the 1-year postoperative efficacy and nutritional indicators of single-anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) in obese patients.Methods:This retrospective observational study included patients with a body mass index (BMI) of ≥40.0 kg/m 2 regardless of other related metabolic diseases and patients with severe type 2 diabetes and a BMI between 27.5 and 40.0 kg/m 2. The clinical data of 66 obese patients who underwent SADI-S at the Bariatric and Metabolic Surgery Department of China-Japan Union Hospital of Jilin University from November 2018 to May 2022 were collected, including 53 cases of da Vinci robotic surgery and 13 cases of laparoscopic surgery. The patients comprised 38 men and 28 women with a median age of 35 (18–61) years and a mean preoperative BMI of 42.93 ± 6.82 kg/m 2. A total of 38 patients had type 2 diabetes, and 46 had hyperuricemia, 45 had hypertension, 35 had hyperlipidemia, 12 had hypercholesterolemia, and 12 had a high low-density lipoprotein (LDL) level. The main observation indicators were (1) intraoperative and postoperative conditions; (2) weight loss outcomes, including body weight, BMI, excess body weight loss (%EWL), and total body weight loss (%TWL) at 3, 6, and 12 months after surgery; (3) effects of treatment on metabolic disease; and (4) changes in nutrient indicators. Results:(1) Intraoperative and postoperative conditions: All patients successfully underwent SADI-S with neither conversion to laparotomy nor death. Four (6.1%) patients developed postoperative complications, and all of them recovered and were discharged after conservative or surgical treatment. (2) Weight loss outcomes: %EWL at 3, 6, and 12 months after surgery was 62.07 ± 26.56, 85.93 ± 27.92, and 106.65 ± 29.65, respectively, and %TWL was 22.67 ± 4.94, 32.10 ± 5.18, and 40.56 ± 7.89, respectively. Body weight and BMI 3 to 12 months after surgery were significantly lower than those before surgery (all P < 0.001). (3) Effect of treatment on metabolic disease: 3 to 12 months after surgery, fasting blood sugar, HbA1c, uric acid, systolic blood pressure, diastolic blood pressure, triglycerides, total cholesterol, LDL, and other indicators were significantly lower than those before surgery (all P < 0.05). Twelve months after surgery, the remission rates of diabetes, hyperuricemia, hypertension, hypertriglyceridemia, hypercholesterolemia, and high LDL were 100% (38/38), 65.2% (30/46), 62.2% (28/45), 94.3% (33/35), 100% (12/12), and 100% (12/12), respectively. (4) Changes in nutrient indicators: Compared with the preoperative nutrient levels, the hemoglobin and hematocrit levels were lower at 3 to 12 months after surgery, the total protein level was lower at 6 to 12 months after surgery, the albumin level was lower at 6 months after surgery, and the ferritin level was lower at 3 months after surgery. The differences were statistically significant (all P < 0.05). The incidence of anemia was 6.1% (4/66), hypoalbuminemia was 4.5% (3/66), and ferritin deficiency was 4.5% (3/66), all of which were improved or normalized through conservative treatment. Twelve months after surgery, 30 (45.5%) patients had vitamin A deficiency, 17 (25.8%) had vitamin E deficiency, 11 (16.7%) had folic acid deficiency, 2 had potassium deficiency (3.0%), 3 (4.5%) had calcium deficiency, 2 (3.0%) had magnesium deficiency, 9 (13.6%) had iron deficiency, and 16 (24.2%) had zinc deficiency. However, no relevant clinical symptoms occurred. Conclusions:SADI-S has a very significant effect on weight loss and alleviation of metabolic diseases. Nutrient deficiencies after SADI-S mainly involve vitamin A, vitamin E, zinc, and folic acid. The long-term efficacy and safety of SADI-S still need further follow-up observation.
		                        		
		                        		
		                        		
		                        	
6.Professor Huang Huang's Experience in Treating Depression with Zhongjing Classic Recipe
Liping CHANG ; Cong WEI ; Zhenhua JIA
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(7):747-751
		                        		
		                        			
		                        			This paper introduces Professor Huang Huang's clinical experience in treating depression with modified classical pre-scriptions of Zhongjing.Professor Huang Huang inherited and summarized Zhongjing's academic thoughts on treating emotional disea-ses,and formulated Jieyu Chufan Recipe by combining Banxia Houpu Decoction with Zhizi Houpu Decoction.He believes that depres-sion is characterized by qi stagnation and phlegm obstruction,as well as internal disturbance of stagnation fire,and formulated a treat-ment method of clearing heat and eliminating restlessness,relieving depression and resolving phlegm.Professor Huang Huang uses Jieyu Chufan Recipe as the basic prescription,and combines relevant classical prescriptions with modifications to treat depression ac-cording to different constitutions and syndromes of patients,achieving satisfactory clinical results.
		                        		
		                        		
		                        		
		                        	
7.3D CT reconstruction for diagnosis of chronic lateral ankle instability combined with syndesmotic diastasis
Ke FU ; Jingjing ZHAO ; Cheng HAO ; Wei XIE ; Shiwei LIN ; Chenyu XU ; Zhenhua FANG
Chinese Journal of Orthopaedic Trauma 2024;26(10):865-871
		                        		
		                        			
		                        			Objective:To investigate the value of 3D CT reconstruction in diagnosis of chronic lateral ankle instability (CLAI) combined with syndesmotic diastasis (SD).Methods:A retrospective study was conducted to analyze the clinical data of 160 patients with CLAI who had been examined by arthroscopy from January 2018 to September 2022 at Department of Foot and Ankle Surgery, Wuhan Fourth Hospital. There were 64 males and 96 females with an age of (39.8±12.6) years. Eighty-one left and 79 right feet were affected; the time from injury to surgery was (27.3±11.6) months. The patients were divided into a widened interval group and a normal interval group according to the syndesmotic width measured, with 2 mm as a critical value. After preoperative 3D CT reconstruction, the differences in anterior tibiofibular distance, posterior tibiofibular distance, the narrowest tibiofibular distance, fibular translation, fibular rotation, and syndesmotic area (SA) were compared between the 2 groups. Univariate and multivariate analyses were performed successively to identify the risk factors. The receiver operating characteristic (ROC) curve was used to identify the best predictive factor and critical value. According to the findings of previous research, the above analyses were repeated to determine the best predictive factor and critical value respectively in the sex subgroup, fibular morphology subgroup and incisura feature subgroup.Results:The binary logistic regression showed that SA was a risk factor for CLAI combined with SD ( OR=1.196, 95% CI: 1.122 to 1.275, P < 0.001). The ROC curve revealed an area under curve of 0.847 and the difference critical value of 22.06 mm 2 that indicated a sensitivity of 80.4% and a specificity of 78.9%, respectively. Subgroup analyses showed that SA was suitable for male and female patients and patients with different fibular morphologies and incisura features but the difference critical values were different. Conclusion:In 3D CT reconstruction, measurement of SA may help the diagnosis of CLAI combined with SD.
		                        		
		                        		
		                        		
		                        	
8.Functional outcomes of robot-assisted radical prostatectomy with preservation of pelvic stabilized structure and early elevated retrograde liberation of neurovascular bundle
Xinyang LIAO ; Yige BAO ; Zhenhua LIU ; Lu YANG ; Shi QIU ; Liangren LIU ; Ping HAN ; Qiang WEI
Chinese Journal of Surgery 2024;62(2):128-134
		                        		
		                        			
		                        			Objectives:To examine the functional outcomes of robot-assisted radical prostatectomy (RARP) with preservation of pelvic floor stabilized structure and early elevated retrograde liberation of the neurovascular bundle (PEEL).Methods:This study was a retrospective cohort study. Between June 1, 2022, and March 20, 2023, 27 cases of RARP with PEEL and 153 cases of RARP with preservation of pelvic floor stabilized structure (PPSS) were included in this study. All patients were males, aged (62.5±5.2) years (range: 50 to 73 years). There were 18 cases of ≤T2b stage and 9 cases of T2c stage. After 1∶1 propensity score matching, the postoperative functional outcomes of 27 cases of RARP with PEEL and 27 cases of RARP with PPSS were compared. All surgeries were performed by a single surgeon and included patients were clinically staged as cT1-2N0M0 without preoperative urinary incontinence or erectile dysfunction. In RARP with PEEL, the prostate was cut near the midline at the front when dissecting the neurovascular bundle, dissection was performed between the visceral layer of the pelvic fascia and the prostatic fascia, preserving the parietal layer and the visceral layer of the pelvic fascia, and the neurovascular bundle was retrogradely released from the apex. The cumulative probability curve was plotted using the Kaplan-Meier method and the Log-rank test was used to compare the differences in functional outcomes between the two groups. Univariate and multivariate analysis with the Cox proportional hazards model was used to compare postoperative urinary continence and sexual function.Results:The recovery time of continence and potency was significantly longer in the PPSS group than in the PEEL group (all P<0.05). The continence rate of the PEEL group was significantly higher than that of the PPSS group (92.59% vs. 68.10%, P=0.026) at 3 months after surgery. The potency rate of the PEEL group was also significantly higher than that of the PPSS group (40.70% vs. 15.10%, P=0.037) at 3 months after surgery. In the univariate analysis, compared to the PPSS technique, the PEEL technique was associated with a shorter recovery time of continence ( HR=1.94, 95% CI: 1.08 to 3.48, P=0.027) and a shorter recovery time of potency ( HR=2.06, 95% CI: 1.03 to 4.13, P=0.042). In the multivariate analysis, the PEEL technique was an independent prognosis factor for postoperative recovery of continence ( HR=2.05, 95% CI: 1.01 to 4.17, P=0.047) and potency ( HR=3.57, 95% CI: 1.43 to 8.92, P=0.007). All the cases of the PPSS group and the PEEL group were performed successfully with negative surgical margins. Conclusion:Compared with PPSS, PEEL may be more conducive to the recovery of urinary continence and sexual function after RARP.
		                        		
		                        		
		                        		
		                        	
9.Safety of early antiplatelet therapy for non-cardioembolic mild stroke patients with thrombocytopenia
Dongjuan XU ; Huan ZHOU ; Mengmeng HU ; Yilei SHEN ; Hongfei LI ; Lianyan WEI ; Jing XU ; Zhuangzhuang JIANG ; Xiaoli SHAO ; Zhenhua XI ; Songbin HE ; Min LOU ; Shaofa KE
Journal of Zhejiang University. Medical sciences 2024;53(2):175-183
		                        		
		                        			
		                        			Objective:To investigate the safety of early antiplatelet therapy for non-cardioembolic mild stroke patients with thrombocytopenia.Methods:Data of acute ischemic stroke patients with baseline National Institutes of Health Stroke Scale(NIHSS)score≤3 and a platelet count<100×109/L were obtained from a multicenter register.Those who required anticoagulation or had other contraindications to antiplatelet therapy were excluded.Short-term safety outcomes were in-hospital bleeding events,while the long-term safety outcome was a 1-year all-cause death.The short-term neurological outcomes were evaluated by modified Rankin scale(mRS)score at discharge.Results:A total of 1868 non-cardioembolic mild stroke patients with thrombocytopenia were enrolled.Multivariate regression analyses showed that mono-antiplatelet therapy significantly increased the proportion of mRS score of 0-1 at discharge(OR=1.657,95%CI:1.253-2.192,P<0.01)and did not increase the risk of intracranial hemorrhage(OR=2.359,95%CI:0.301-18.503,P>0.05),compared with those without antiplatelet therapy.However,dual-antiplatelet therapy did not bring more neurological benefits(OR=0.923,95%CI:0.690-1.234,P>0.05),but increased the risk of gastrointestinal bleeding(OR= 2.837,95%CI:1.311-6.136,P<0.01)compared with those with mono-antiplatelet therapy.For patients with platelet counts≤75×109/L and>90×109/L,antiplatelet therapy significantly improved neurological functional outcomes(both P<0.05).For those with platelet counts(>75-90)×109/L,antiplatelet therapy resulted in a significant improvement of 1-year survival(P<0.05).For patients even with concurrent coagulation abnormalities,mono-antiplatelet therapy did not increase the risk of various types of bleeding(all P>0.05)but improved neurological functional outcomes(all P<0.01).There was no significant difference in the occurrence of bleeding events,1-year all-cause mortality risk,and neurological functional outcomes between aspirin and clopidogrel(all P>0.05).Conclusions:For non-cardioembolic mild stroke patients with thrombocytopenia,antiplatelet therapy remains a reasonable choice.Mono-antiplatelet therapy has the same efficiency as dual-antiplatelet therapy in neurological outcome improvement with lower risk of gastrointestinal bleeding.
		                        		
		                        		
		                        		
		                        	
10.SIRT6 overexpression inhibits AngⅡ-induced cardiomyocyte apoptosis by activating AMPK/Nrf2/HO-1 pathway
Zhenhua LU ; Jing SHEN ; Wenjun HUANG ; Wei SUN ; Yongxiang MA
Chinese Journal of Arteriosclerosis 2024;32(8):663-668,676
		                        		
		                        			
		                        			Aim To investigate whether SIRT6 overexpression inhibits angiotensin Ⅱ(Ang Ⅱ)-induced cardio-myocyte apoptosis by activating adenosine 5'-monophosphate-activated protein kinase/nuclear factor erythroid 2-related factor 2/heme oxygenase-1(AMPK/Nrf2/HO-1)signaling pathway.Methods The experiment was divided into 4 groups:control group,AngⅡ group,Ang Ⅱ+SIRT6 group,Ang Ⅱ+empty vector(EV)group.The mRNA level of SIRT6 was detected by RT-PCR.The cell activity was measured by MTT assay.The cell apoptosis was analyzed by flow cy-tometry.SIRT6,cardiomyocyte apoptosis related proteins(Bax,cleaved Caspase-3,Bcl-2),DNA damage related pro-teins(γ-H2AX,p-ATM),AMPK/Nrf2/HO-1 signaling pathway related proteins(p-AMPK,Nrf2,HO-1)were measured by Western blot.The reactive oxygen species(ROS)content was determined by DCFH-DA staining.The changes of the above indexes among the groups were observed.Results Compared with control group,the mRNA and protein ex-pression levels of SIRT6 and cell activity were significantly decreased in Ang Ⅱ group.Apoptosis rate,the expressions of Bax,cleaved Caspase-3 were increased,and the expression of Bcl-2 was decreased.The expressions of γ-H2AX and p-ATM were increased,and the expressions of p-AMPK,Nrf2,HO-1 were decreased.The activity of ROS was increased(P<0.01).Compared with Ang Ⅱ+EV group,the expression of SIRT6 and cell activity were significantly increased in Ang Ⅱ+SIRT6 group.Apoptosis rate,the expressions of Bax and cleaved Caspase-3 were decreased,and the expression of Bcl-2 was increased.The expressions of γ-H2AX and p-ATM were decreased,the expressions of p-AMPK,Nrf2,HO-1 were increased.The activity of ROS was decreased(P<0.01).Conclusion SIRT6 overexpression inhibits Ang Ⅱ-induced cardiomyocyte apoptosis through activation of AMPK/Nrf2/HO-1 signaling pathway.
		                        		
		                        		
		                        		
		                        	
            
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