1.The effect of oxycodone or oliceridine for sedation during endoscopic retrograde cholangiopancreatography in elderly patients
Ke LIU ; Shasha MEI ; Zhuang GUO ; Weimin XU ; Wenxue YE
Journal of Interventional Radiology 2025;34(10):1089-1093
Objective To discuss the application effect of intravenous anesthesia with oxycodone plus propofol or oliceridine plus propofol for sedating elderly patients during endoscopic retrograde cholangiopancreatography(ERCP).Methods Sixty elderly patients,who were planned to receive ERCP in Shengli Oilfield Central Hospital from March to Sepcember 2024,were randomly divided into oxycodone group and oliceridine group,with 30 patients in each group.Intravenous anesthesia with oxycodone plus propofol or oliceridine plus propofol was adopted for the patients of the corresponding group.The patient's postoperative comfort score,the dosage of propofol used during surgery,the number of additional analgesics administered,the time of patient entering the operation room(T0),3 minutes after analgesia(T1),after anesthesia induction(T2),immediately upon examination(T3),time on arrival at the duodenal papilla(T4),and time on consciousness waking-up(T5)were recorded.The surgical time,consciousness waking-up time,endoscopist satisfaction degree,patient's satisfaction rate,and incidence of anesthesia-related adverse events were documented.Results The comparison of postoperative comfort scores showed that the score in the oliceridine group was(7.6±1.9)points,which was significantly higher than(6.6±1.3)points in the oxycodone group(t=2.23,P=0.03).The dosage of propofol used during surgery in the oliceridine group was significantly lower than that in the oxycodone group(P<0.05).The mean arterial pressure(MAP),heart rate(HR),and respiratory rate(RR)at T1-T4 time points were significantly decreased in both groups when compared with their values at T0 time point(all P<0.05).The reduction degrees of the above indexes at T1-T3 time points in the oxycodone group were more pronounced than those in the oliceridine group(all P<0.05).At T4,MAP and HR were increased in both groups,which in the oxycodone group were remarkably higher than those in the oliceridine group(both P<0.05).No statistically significantly difference in oxygen saturation(SpO2)existed between T1 time point and T0 time point(P>0.05);but at the other time points,SpO2 was decreased to varying degrees in both groups,and the within-group comparison and between-group comparison showed that the differences in SpO2 were statistically significant(all P<0.05).In oliceridine group,the time of patient's consciousness waking-up was obviously shorter than that in the oxycodone group(P<0.05),and the endoscopist satisfaction degree and patient satisfaction rate were strikingly higher than those in the oxycodone group(both P<0.05).The incidence of intraoperative adverse events in the oliceridine group was prominently lower than that in the oxycodone group(P<0.05).No statistically significant difference in the incidence of adverse events during consciousness waking-up time existed between the two groups(P>0.05),but the incidences of postoperative nausea,vomiting and respiratory depression in the oliceridine group was obviously lower than those in the oxycodone group(all P<0.05).Conclusion In performing ERCP for elderly patients,oliceridine plus propofol is clinically safe and feasible with less adverse events,high satisfaction rate and higher patient's comfort level when compared with oxycodone plus propofol.
2.Antibacterial properties and compatibility of plasma-activated water/bletilla striata polysaccharide composite hydrogel
Wenxue Ren ; Cheng Cheng ; Wei Han ; Taofeng Liu
Acta Universitatis Medicinalis Anhui 2025;60(11):1996-2004
Objective:
To investigate the antibacterial properties and biocompatibility of a novel hydrogel fabricated by integrating plasma-activated water(PAW) and bletilla striata polysaccharide(BSP).
Methods:
The experiments were carried out by dividing the hydrogels into four groups based on their compositions:the deionized water(DW)-carbomer 940(CBM940)-carboxymethyl chitosan(CMCS) hydrogel group(H group),the PAW-CBM940-CMCS hydrogel(PAH) group,the DW-BSP-CBM940-CMCS hydrogel(BSPH) group,and the PAW-BSP-CBM940-CMCS hydrogel(PA/BSPH) group.Physical properties of the hydrogels were evaluated by testing water loss rate and water vapor transmission rate.The content of active substances was determined using a microplate reader and an electron spin resonance spectrometer(ESR).The pH and ORP values were measured using a pH meter and an oxidation-reduction potential(ORP) electrode.The antibacterial mechanism was elucidated by analyzing the integrity of bacterial biofilms.Antibacterial activity was evaluated via the zone of inhibition assay.Cytotoxicity testing was performed using the cell counting kit-8(CCK-8) assay,and combined with the cell scratch assay,to collectively evaluate the effects of the hydrogel on cellular biocompatibility and migration ability.
Results:
The water loss rate and water vapor transmission rate of PA/BSPH hydrogel were (32. 3 ±2. 3)% and (2 228. 2 ±1 81 . 1) g/( m2 ·d) . Compared with the H group hydrogel , the contents of hydrogen peroxide ( H2 O2 ) and hydroxyl radicals ( ·OH) in PAH and PA/BSPH groups significantly increased (P < 0. 05) , and the diameters of inhibition zones significantly enlarged (P < 0. 05) . The cell viability in PAH group significantly decreased (P < 0. 05) . The PA/ BSPH group showed non-toxicity and a higher cell migration rate ( P < 0. 05 ) .
Conclusion
The antibacterial mechanism of the PA/BSPH hydrogel relies on the reactive species H2 O2 and ·OH in PAW. The incorporation of BSP enhances the water retention and breathability of the wound dressing while significantly reducing the cytotoxici- ty of PAW. This modification endows the hydrogel with improved biocompatibility and promotes cell proliferation . The PA/BSPH hydrogel demonstrates clinical potential by offering a novel therapeutic strategy for chronic infected wound management.
3.Data Mining for Adverse Events of Macrolide Antibiotics in Children Based on the FAERS Database
Wenxue WANG ; Li TANG ; Lan LIU
Herald of Medicine 2025;44(4):576-583
Objective To analyze signals of adverse events(AEs)related to macrolide antibiotic in children from the US FDA Adverse Event Reporting System(FAERS),and provide a reference for clinical safe medication in children.Methods The AEs reports of children(less than 18 years old)were extracted from FAERS during January 2004 to March 2024,and the reports of odds ratio(ROR)and information component of Bayesian confidence propagation neural network(IC)were used to analyze the signals of macrolide antibiotics in children.Results There were 2 133 648 reports of children from FAERS,including azithromycin(7 589 cases),clarithromycin(3 673 cases),and erythromycin(820 cases).The significant signals of system organ class(SOC)were 16 in total,such as skin disorders,ear and labyrinth disorders,gastrointestinal disorders,nervous system,immune system disorders,etc.A proportional imbalance analysis was performed on macrolide antibiotics(azithromycin and clarithromycin),and obtained relevant positive signals,including azithromycin(232)and clarithromycin(194).The most frequently reported AEs included rash,vomiting,diarrhea,hypersensitivity and so on.The strongest signals of azithromycin were Stevens-Johnson syndrome(SJS),hypersensitivity reactions,drug-induced liver injury,etc.,while the strongest signals of clarithromycin were dysgeusia,lip swelling,toxic epidermal necrolysis(TEN),nightmare,psychotic disorder,etc.17 unlisted signals of azithromycin and 21 of clarithromycin were found.The same PT of azithromycin and clarithromycin had significant difference,such as dyspnea,hypersensitivity,rash,SJS,vomiting,and more.Conclusions To ensure the safety of children's treatment,children using macrolide should pay attention to skin,gastrointestinal,ear and other toxicity and hypersensitivity reactions,especially serious skin reactions,unlisted suspicious AEs and psychiatric disorders.
4.Efficacy analysis of curative esophagectomy versus definitive chemoradiotherapy in clinical T1bN0M0 thoracic esophageal cancer
Wenxue WEI ; Wenjian YAO ; Chengzhi DING ; Zeheng MA ; Mengbo LIU ; Yijun ZHANG ; Shoulong LU ; Mingbo LIU ; Li WEI
Chinese Journal of Digestive Surgery 2025;24(10):1290-1297
Objective:To evaluate the efficacy of curative esophagectomy versus definitive chemoradiotherapy (dCRT) in patients with clinical T1bN0M0 thoracic esophageal cancer.Methods:The propensity score matching (PSM) and retrospective cohort study was conducted. The clinico-pathological data of 163 patients with clinical T1bN0M0 thoracic esophageal cancer who were admitted to Henan Provincial People′s Hospital from January 2014 to December 2020 were collected. There were 125 males and 38 females, aged (58.9±7.0)years. Of 163 patients, 124 cases undergoing curative transthoracic esophagectomy were allocated into the radical resection group, 39 cases undergoing dCRT were allocated into the dCRT group. Observation indicators:(1) PSM and compari-son of clinicopathological characteristics of patients between the two groups after matching; (2) complications in the radical resection group and treatment status in the dCRT group; (3) survival analysis; (4) analysis of factors influencing patients′ prognosis. Comparison of measurement data with normal distribution between groups was conducted using the Welch t test. Comparison of measurement data with skewed distribution between groups was conducted using the Mann-Whitney U test. Comparison of count data between groups was conducted using the chi-square test or Fisher exact probability. Comparison of ordinal data was conducted using the Mann-Whitney U test. The Cox proportional hazard model was used for univariate and multivariate analyses. The Kaplan-Meier method was used to calculate survival rate and plot survival curve, and Log-rank test was used for survival analysis. PSM was performed using the 2∶1 nearest neighbor matching method. The caliper value was set as 0.05. Results:(1) PSM and comparison of clinicopathological charac-teristics of patients between the two groups after matching. Of the 163 patients, 117 cases were successfully matched, with 78 cases in the radical resection group and 39 cases in the dCRT group. After PSM, the elimination of tumor differentiation degree confounding bias ensured comparability. (2) Complications in the radical resection group and treatment status in the dCRT group.Among the 78 patients in the curative esophagectomy group, 22 cases developed complications within 30 days after surgery. There was no death within 30 days after surgery. Among the 39 patients in the dCRT group, 25 cases received concurrent chemoradiotherapy alone, 8 cases received induction chemo-therapy followed by concurrent chemoradiotherapy, 3 cases received sequential chemoradiotherapy, and 3 cases received radiotherapy alone. Among the 33 patients who received concurrent chemo-radiotherapy, 29 cases were treated with the XP regimen, and 4 cases with the FP regimen. Efficacy evaluation showed that 37 patients achieved complete remission, and 2 patients had residual lesions. Twenty-two patients developed treatment-related adverse reactions. (3) Survival analysis. After PSM, the follow-up duration was 58(range, 13-125)months in the radical resection group and 56(range, 10-129)months in the dCRT group. The postoperative 5-year overall survival rates were 95.7% and 97.1% in the radical resection group and dCRT group, respectively, showing no significant difference between the two groups ( χ2=0.001, P>0.05). The postoperative 5-year disease-free progression survival rates were 88.2% and 94.2% in the radical resection group and dCRT group, respectively, showing no significant difference between the two groups ( χ2=0.652, P>0.05). (4) Analysis of factors influencing patients prognosis. Age and pathological TNM stage were indepen-dent influencing factors for overall survival time in patients with clinical T1bN0M0 thoracic esophageal cancer ( hazard ratio=1.312, 2.945, 95% confidence interval as 1.042-1.711, 2.204-5.517, P<0.05). Age and pathological TNM stage were independent influencing factors for disease-free survival time in patients with clinical T1bN0M0 thoracic esophageal cancer ( hazard ratio=1.215, 3.301, 95% confidence interval as 1.012-1.699, 2.012-6.321, P<0.05). Conclusions:There is no significant difference in overall survival and disease-free survival between patients with clinical T1bN0M0 thoracic esophageal cancer undergoing curative esophagectomy and dCRT. The treatment modality is not an independent prognostic factor.
5.Efficacy analysis of curative esophagectomy versus definitive chemoradiotherapy in clinical T1bN0M0 thoracic esophageal cancer
Wenxue WEI ; Wenjian YAO ; Chengzhi DING ; Zeheng MA ; Mengbo LIU ; Yijun ZHANG ; Shoulong LU ; Mingbo LIU ; Li WEI
Chinese Journal of Digestive Surgery 2025;24(10):1290-1297
Objective:To evaluate the efficacy of curative esophagectomy versus definitive chemoradiotherapy (dCRT) in patients with clinical T1bN0M0 thoracic esophageal cancer.Methods:The propensity score matching (PSM) and retrospective cohort study was conducted. The clinico-pathological data of 163 patients with clinical T1bN0M0 thoracic esophageal cancer who were admitted to Henan Provincial People′s Hospital from January 2014 to December 2020 were collected. There were 125 males and 38 females, aged (58.9±7.0)years. Of 163 patients, 124 cases undergoing curative transthoracic esophagectomy were allocated into the radical resection group, 39 cases undergoing dCRT were allocated into the dCRT group. Observation indicators:(1) PSM and compari-son of clinicopathological characteristics of patients between the two groups after matching; (2) complications in the radical resection group and treatment status in the dCRT group; (3) survival analysis; (4) analysis of factors influencing patients′ prognosis. Comparison of measurement data with normal distribution between groups was conducted using the Welch t test. Comparison of measurement data with skewed distribution between groups was conducted using the Mann-Whitney U test. Comparison of count data between groups was conducted using the chi-square test or Fisher exact probability. Comparison of ordinal data was conducted using the Mann-Whitney U test. The Cox proportional hazard model was used for univariate and multivariate analyses. The Kaplan-Meier method was used to calculate survival rate and plot survival curve, and Log-rank test was used for survival analysis. PSM was performed using the 2∶1 nearest neighbor matching method. The caliper value was set as 0.05. Results:(1) PSM and comparison of clinicopathological charac-teristics of patients between the two groups after matching. Of the 163 patients, 117 cases were successfully matched, with 78 cases in the radical resection group and 39 cases in the dCRT group. After PSM, the elimination of tumor differentiation degree confounding bias ensured comparability. (2) Complications in the radical resection group and treatment status in the dCRT group.Among the 78 patients in the curative esophagectomy group, 22 cases developed complications within 30 days after surgery. There was no death within 30 days after surgery. Among the 39 patients in the dCRT group, 25 cases received concurrent chemoradiotherapy alone, 8 cases received induction chemo-therapy followed by concurrent chemoradiotherapy, 3 cases received sequential chemoradiotherapy, and 3 cases received radiotherapy alone. Among the 33 patients who received concurrent chemo-radiotherapy, 29 cases were treated with the XP regimen, and 4 cases with the FP regimen. Efficacy evaluation showed that 37 patients achieved complete remission, and 2 patients had residual lesions. Twenty-two patients developed treatment-related adverse reactions. (3) Survival analysis. After PSM, the follow-up duration was 58(range, 13-125)months in the radical resection group and 56(range, 10-129)months in the dCRT group. The postoperative 5-year overall survival rates were 95.7% and 97.1% in the radical resection group and dCRT group, respectively, showing no significant difference between the two groups ( χ2=0.001, P>0.05). The postoperative 5-year disease-free progression survival rates were 88.2% and 94.2% in the radical resection group and dCRT group, respectively, showing no significant difference between the two groups ( χ2=0.652, P>0.05). (4) Analysis of factors influencing patients prognosis. Age and pathological TNM stage were indepen-dent influencing factors for overall survival time in patients with clinical T1bN0M0 thoracic esophageal cancer ( hazard ratio=1.312, 2.945, 95% confidence interval as 1.042-1.711, 2.204-5.517, P<0.05). Age and pathological TNM stage were independent influencing factors for disease-free survival time in patients with clinical T1bN0M0 thoracic esophageal cancer ( hazard ratio=1.215, 3.301, 95% confidence interval as 1.012-1.699, 2.012-6.321, P<0.05). Conclusions:There is no significant difference in overall survival and disease-free survival between patients with clinical T1bN0M0 thoracic esophageal cancer undergoing curative esophagectomy and dCRT. The treatment modality is not an independent prognostic factor.
6.Data Mining for Adverse Events of Macrolide Antibiotics in Children Based on the FAERS Database
Wenxue WANG ; Li TANG ; Lan LIU
Herald of Medicine 2025;44(4):576-583
Objective To analyze signals of adverse events(AEs)related to macrolide antibiotic in children from the US FDA Adverse Event Reporting System(FAERS),and provide a reference for clinical safe medication in children.Methods The AEs reports of children(less than 18 years old)were extracted from FAERS during January 2004 to March 2024,and the reports of odds ratio(ROR)and information component of Bayesian confidence propagation neural network(IC)were used to analyze the signals of macrolide antibiotics in children.Results There were 2 133 648 reports of children from FAERS,including azithromycin(7 589 cases),clarithromycin(3 673 cases),and erythromycin(820 cases).The significant signals of system organ class(SOC)were 16 in total,such as skin disorders,ear and labyrinth disorders,gastrointestinal disorders,nervous system,immune system disorders,etc.A proportional imbalance analysis was performed on macrolide antibiotics(azithromycin and clarithromycin),and obtained relevant positive signals,including azithromycin(232)and clarithromycin(194).The most frequently reported AEs included rash,vomiting,diarrhea,hypersensitivity and so on.The strongest signals of azithromycin were Stevens-Johnson syndrome(SJS),hypersensitivity reactions,drug-induced liver injury,etc.,while the strongest signals of clarithromycin were dysgeusia,lip swelling,toxic epidermal necrolysis(TEN),nightmare,psychotic disorder,etc.17 unlisted signals of azithromycin and 21 of clarithromycin were found.The same PT of azithromycin and clarithromycin had significant difference,such as dyspnea,hypersensitivity,rash,SJS,vomiting,and more.Conclusions To ensure the safety of children's treatment,children using macrolide should pay attention to skin,gastrointestinal,ear and other toxicity and hypersensitivity reactions,especially serious skin reactions,unlisted suspicious AEs and psychiatric disorders.
7.A new classification of left apicoposterior segmental bronchus and its clinical significance
Jian LIU ; Li WEI ; Li ZHU ; Shuai HU ; Tian XIA ; Wenxue WEI
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(01):92-98
Objective To analyze a new classification of the left apicoposterior segmental bronchus and summarize its clinical significance. Methods We accessed the computed tomography imaging data of the inpatients treated in the Department of Thoracic Surgery, Henan Provincial People's Hospital between January and November 2021. We observed and classified the branching pattern of the left apicoposterior segmental bronchus (B1+2) using three-dimensional computed tomography bronchography and angiography (3D-CTBA) technique. And we filtered out the patients who underwent thoracoscopic left apicoposterior segmentectomy and analyzed their clinical data retrospectively to summarize the instructing significance of different bronchial classification in the accurate and safe operation of left apicoposterior segmentectomy. Results Finally 240 patients were collected, including 131 males and 109 females with a median age of 51.0 (19.0-77.0) years. The anatomical pattern of the left apicoposterior segmental bronchus was divided into four main types based on the branching pattern of the outer subsegmental bronchi (B1+2c): type Ⅰ 10% (24 patients), type Ⅱ 54% (130 patients) , type Ⅲ 17% (40 patients) , type Ⅳ 18% (43 patients) and other variations 1% (3 patients). Thirty-two patients smoothly underwent thoracoscopic left apicoposterior segmentectomy, including 23 patients of type Ⅰ and type Ⅱ receiving LS1+2 resection, the other 9 patients of type Ⅲ and type Ⅳ receiving LS1+2 resection (3 patients), LS1+2c resection (4 patients) and LS1+2(a+b) resection (2 patients). Conclusion This new classification systematically and concisely elucidates the branching characteristics of the left apicoposterior bronchus. Different branching types are instructive to the left apicoposterior segmentectomy.
8.Clinical features and initial outcomes in elderly patients with idiopathic membranous nephropathy
Jinxiu LIANG ; Fangxiao XIA ; Wenke HAO ; Wenxue HU ; Yanhua WU ; Feng YU ; Zhi ZHAO ; Wei LIU
Chinese Journal of Geriatrics 2024;43(2):168-174
Objective:The purpose of this study was to examine the clinical features and initial treatment outcomes of elderly individuals with idiopathic membranous nephropathy.Methods:This study retrospectively analyzed the clinical characteristics and therapeutic effect of hospitalized patients aged 60 years or older with renal-biopsy-proven idiopathic membranous nephropathy for at least one year.Results:This study enrolled a total of 91 elderly patients with IMN, consisting of 51 males(56.0%)and 40 females(44.0%). The median age of the patients was 67 years.The urinary protein creatinine ratio(uPCR)and urinary albumin creatinine ratio(uACR)of the patients were 4 454.3 mg/g and 2 258.5 mg/g, respectively.The median 24-hour urinary protein and urinary albumin levels were 5 098.2 mg/24 h and 2 800.6 mg/24 h, respectively.The average estimated glomerular filtration rate(eGFR)was(60.5±20.4)ml·min -1·1.73 m -2.Out of the total of 61 patients, 67.0% achieved remission, including complete and partial remission, within a year of renal biopsy.The levels of uPCR and uACR were significantly higher in the non-remission group compared to the remission group(5 462.5 vs.2 271.1 mg/g, P<0.001; 2 774.4 vs.1 320.0 mg/g, P=0.001). Additionally, the levels of 24h urinary protein and urinary albumin were significantly higher in the non-remission group compared to the remission group(6 526.4 vs.3 210.4 mg/g, P=0.002; 3 067.7 vs.2 102.4 mg/g, P=0.007). The remission group had a higher proportion of patients receiving immunosuppressive therapy(85.2% vs.33.3%, P<0.001). The remission rates were higher in patients treated with glucocorticoid combined with cyclophosphamide, glucocorticoid combined with calcineurin inhibitors, or glucocorticoid combined with mycophenolate mofetil compared to those receiving conservative treatment(88.2% vs.31.0%, P=0.001; 80.0% vs.31.0%, P<0.001; 100.0% vs.31.0%, P=0.007). There was no significant difference in remission rate between the three immunosuppressive therapy groups( P>0.05). However, upon further analysis, it was found that the levels of uPCR, uACR, and serum cystatin C(CysC)were higher in the immunosuppressive therapy groups compared to conservative treatment.Additionally, serum total protein and albumin were lower in the immunosuppressive therapy groups, and these differences were statistically significant( P<0.05). Conclusions:The majority of elderly patients diagnosed with IMN have multiple comorbidities.For those at high risk with elevated urinary protein levels, early initiation of immunosuppressive therapy may lead to a higher initial urinary protein remission rate.Therefore, it is advisable to develop individualized treatment plans for elderly patients with IMN based on their clinical characteristics, as well as the risks and benefits associated with immunosuppressive therapy.
9.Progress in clinical application of individualized exercise prescription based on threshold in metabolic syndrome
Feng WANG ; Ruojiang LIU ; Jinmei QIN ; Wenxue CHEN ; Zhiqiang PEI ; Weizhen XUE
Chinese Journal of Arteriosclerosis 2024;32(11):1006-1012
Patients with metabolic syndrome(MS)are at potential risk for cardiovascular disease and have received increasing public and medical attention.Studies have shown that regular physical exercise can effectively regulate meta-bolic indicators such as blood pressure,blood sugar and blood lipids,and play a positive role in reducing the risk of cardio-vascular disease and improving the prognosis of patients.Exercise intensity has been identified as the most important as-pect in reducing the risk of cardiovascular death and all-cause mortality in exercise intervention.Therefore,the design of exercise prescription which is both scientific and satisfying individual differences has become the focus of research.Most of the current clinical studies are based on the percentage of exercise intensity as the basis for the formulation of standard-ized exercise prescription for MS patients,while the studies on the individualized threshold of exercise intensity based on cardiopulmonary exercise test(CPET)are still few.CPET has shown that individualized exercise prescription can effec-tively reduce body composition index,blood pressure and blood glucose,improve cardiorespiratory function,exercise en-durance and quality of life in MS patients.This paper reviewed the development of individualized exercise programs with different intensification according to threshold indexes in CPET,analyzed the intervention effects and possible mechanisms for MS patients and subgroups,and provided certain reference for the formulation and implementation of personalized exer-cise prescriptions for MS patients,and also provided references for in-depth research on individualized exercise intervention for MS.
10.Role of selenoprotein M knockdown in the melatonin antagonism of nickel-induced apoptosis and endoplasmic reticulum stress in mouse heart.
Xintong ZHANG ; Xiaoxue GAI ; Lihua XU ; Wenxue MA ; Qiaohan LIU ; Bendong SHI ; Cheng FANG ; Jingzeng CAI ; Ziwei ZHANG
Journal of Zhejiang University. Science. B 2023;24(5):406-417
The aim of this study was to investigate the role of selenoprotein M (SelM) in endoplasmic reticulum stress and apoptosis in nickel-exposed mouse hearts and to explore the detoxifying effects of melatonin. At 21 d after intraperitoneal injection of nickel chloride (NiCl2) and/or melatonin into male wild-type (WT) and SelM knockout (KO) C57BL/6J mice, NiCl2 was found to induce changes in the microstructure and ultrastructure of the hearts of both WT and SelM KO mice, which were caused by oxidative stress, endoplasmic reticulum stress, and apoptosis, as evidenced by decreases in malondialdehyde (MDA) content and total antioxidant capacity (T-AOC) activity. Changes in the messenger RNA (mRNA) and protein expression of genes related to endoplasmic reticulum stress (activating transcription factor 4 (ATF4), inositol-requiring protein 1 (IRE1), c-Jun N-terminal kinase (JNK), and C/EBP homologous protein (CHOP)) and apoptosis (B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), Caspase-3, Caspase-9, and Caspase-12) were also observed. Notably, the observed damage was worse in SelM KO mice. Furthermore, melatonin alleviated the heart injury caused by NiCl2 in WT mice but could not exert a good protective effect in the heart of SelM KO mice. Overall, the findings suggested that the antioxidant capacity of SelM, as well as its modulation of endoplasmic reticulum stress and apoptosis, plays important roles in nickel-induced heart injury.
Animals
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Male
;
Mice
;
Antioxidants/pharmacology*
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Apoptosis
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Endoplasmic Reticulum Stress
;
Melatonin/pharmacology*
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Mice, Inbred C57BL
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Nickel/adverse effects*
;
Selenoproteins/genetics*
;
Heart/drug effects*


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