1.Establishment and evaluation of a method for detection of ASFV antigen by doub-le-antibody sandwich ELISA
Qixuan LI ; Huixian YUE ; Yiqian JIANG ; Yanyan ZHANG ; Teng CHEN ; Shuchao WANG ; Shoufeng ZHANG ; Rongliang HU
Chinese Journal of Veterinary Science 2024;44(8):1579-1584,1592
African swine fever(ASF)is an acute and highly pathogenic hemorrhagic disease of pigs,causing huge economic losses to pig industry.In order to quantitatively detect clinical samples of ASF and inactivated ASFV antigens,the IgG of ASF positive serum was used as capture anti-body and the HRP-labeled p72 monoclonal antibody was used as detecting antibody.The standard curve was drawn with the cell-cultured ASFV,and a sandwich ELISA detection of antigen was es-tablished.The specificity,sensitivity and stability of the method were evaluated.The effects of dif-ferent inactivation methods and adjuvant addition on antigen detection were further evaluated.The results showed that the minimum detection limits of the recombinant protein and the ASFV were 0.1 mg/L and 103.7 TCID50/mL,respectively.There was no cross-reaction with five common porcine pathogenic viruses,and the coefficient variations between batches was less than 10%.The total co-incidence rate with real-time fluorescence quantitative PCR was 92%(23/25).The sensitivity of antigen detection was significantly reduced when antigen was treated by BEI inactivation,and the detection results were severely interfered by aluminum adjuvant and nano-adjuvant.In summary,the sandwich ELISA antigen detection method established is specific,sensitive,and repeatable,with a good consistency to the qPCR method,which provides an effective clinical diagnostic meth-od for ASFV antigen.
2.Research progress in the relationship between FOXM1 and neoplasm metabolism
Yu LI ; Yifan JIANG ; Rongliang TONG ; Diyu CHEN ; Jian WU
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(10):1323-1329
FOXM1(forkhead box M1)is an important member of the FOX transcription factor family and plays a critical role in driving the progression of multiple malignancies through its transcriptional regulatory functions.Moreover,the overexpression of FOXM1 is associated with poor prognosis in many types of cancer,as it regulates a variety of biological processes such as gene expression,cell proliferation,invasion,metastasis,and apoptosis.Presently,aberrant metabolic reprogramming has been considered as the major characteristic of cancer development,determining the survival,growth,and proliferation of tumor cells.Accumulating evidence suggests that FOXM1 serves as a"bridge"between metabolism and tumorigenesis.This review aims to provide a comprehensive summary of the research progress in the relationship between FOXM1 and tumor cell metabolism,offering theoretical insights for the development of novel anti-cancer drugs targeting FOXM1.
3.Effect of etomidate and dexamethasone on cortisol secretion in elderly patients undergoing general anesthesia
Ting LIU ; Siyuan LI ; Sisi ZHANG ; Jing LIU ; Xiaoli NIU ; Qianru WANG ; Rongliang XUE
Chinese Journal of Anesthesiology 2022;42(6):680-684
Objective:To evaluate the effects of dexamethasone and etomidate on cortisol secretion in elderly patients undergoing general anesthesia.Methods:One hundred and twenty-five elderly patients of either sex, aged 66-90 yr, of American Society of Anesthesiologists physical statusⅠ-Ⅲ, undergoing minor and medium elective surgeries under general anesthesia, were allocated into 4 groups using a random number table method: propofol and normal saline group (group PN, n=31), propofol and etomidate group (group PD, n=31), etomidate and normal saline group (group EN, n=33) and etomidate and dexamethasone group (group ED, n=30). In PN and EN groups, propofol (2 mg/kg) was used to induce and maintain anesthesia, and normal saline 2 ml and dexamethasone 0.1 mg/kg were intravenously injected, respectively, at 5 min before anesthesia induction.In PD and ED groups, etomidate (0.2 mg/kg) was used to induce and maintain anesthesia, and normal saline 2 ml and dexamethasone 0.1 mg/kg were intravenously injected, respectively, at 5 min before anesthesia induction.The serum cortisol concentrations were measured at 8: 00 after entering the operating room on the morning of operation (T 1), 1 h after the start of anesthesia (T 2), 2 h after the start of anesthesia (T 3), 8: 00 on the next day ofoperation (T 4) and 8: 00 on the 2nd day of operation (T 5). Blood glucose concentrations were measured at T 1-T 3, and the hypotension during the peri-anesthesia period, nausea and vomiting in post-anesthesia care unit, and nausea and vomiting scores were recorded at 24 h after operation. Results:A total of 122 patients completed the trial.Compared with PN group, the concentration of serum cortisol was significantly decreased at T 2-T 5, blood glucose concentrations were increased at T 2 and T 3 ( P<0.05), and no significant change was found in the incidence of hypotension, nausea and vomiting and nausea and vomiting scores in PD group ( P>0.05), and the concentration of serum cortisol was significantly decreased at T 2-T 4, the incidence of hypotension was decreased ( P<0.05), and no significant change was found in the blood glucose concentrations, incidence of nausea and vomiting or nausea and vomiting scores in EN group ( P>0.05). Compared with ED group, the serum cortisol concentration was significantly increased at T 2 and T 3, the incidence of hypotension was increased, the incidence of nausea and vomiting and nausea and vomiting scores were decreased ( P<0.05), and no significant change was found in the blood glucose concentrations in PD group ( P>0.05), and the serum cortisol concentration was significantly decreased at T 2 and T 3 and increased at T 4 and T 5, the serum cortisol concentration was decreased at T 2 and T 3, and no significant change was found in the incidence of hypotension, nausea and vomiting and nausea and vomiting scores in EN group ( P>0.05). Conclusions:Combination of etomidate and dexamethasone significantly enhances the duration and degree of inhibition of cortisol secretion in elderly patients than etomidate or dexamethasone alone.
4. The association between sleep quality and the degree of coronary atherosclerotic stenosis
Yuanyuan LI ; Liang ZHANG ; Rongliang XU ; Bili ZHANG
Journal of Chinese Physician 2019;21(12):1798-1802
Objective:
To explore the correlation between sleep and the severity of coronary artery stenosis, and to further guide the prevention and control of coronary heart disease.
Methods:
A total of 302 patients, including 183 males and 119 females, were enrolled in the department of cardiology of Changhai hospital from February to June 2019. The patients were divided into three groups according to the degree of stenosis (atherosclerotic group, atherosclerotic group with degree of stenosis <50%, atherosclerotic group with degree of stenosis 50%-70%, and atherosclerotic group with degree of stenosis >70%). General information, comorbidities and Pittsburgh sleep quality index (PSQI) of patients in each group were analyzed to compare the differences and analyze the risk factors of aggravated coronary artery stenosis.
Results:
There were statistically significant differences in age, gender and diabetes among all groups (
5.Efficacy of oxycodone for improvement of general anesthesia for laparoscopic cholecystectomy in elderly patients
Xiaoli NIU ; Rongliang XUE ; Hongtao LIU ; Pengbo ZHANG ; Simin ZHENG ; Min QIAO ; Xinxia ZHANG ; Qianru WANG ; Siyuan LI
Chinese Journal of Anesthesiology 2018;38(6):695-698
Objective To evaluate the efficacy of oxycodone for improvement of general anesthesia for laparoscopic cholecystectomy in elderly patients.Methods A total of 160 patients of both sexes,aged 65-75 yr,with body mass index <30 kg/m2,of American Society of Anesthesiologists physical status Ⅰ-Ⅲ,scheduled for elective laparoscopic cholecystectomy,were divided into 2 groups (n =80 each) using a random number table method:general anesthesia group (group GA) and oxycodone + general anesthesia group (group OX+GA).Anesthesia induction:propofol was given by closed-loop infusion at the initial target plasma concentration of 2 μg/ml,the target bispectral index (BIS) value was set at 50,and 2 min later remifentanil was given by target-controlled infusion at the target plasma concentration of 4 ng/ml,and cisatracurium 0.2 mg/kg was intravenously injected when BIS value was decreased to 70.Laryngeal mask airways were inserted and the patients were mechanically ventilated when BIS value was decreased to 50 and TOF ratio was decreased to 25%,and end-tidal pressure of carbon dioxide was maintained at 35-45 mmHg.Anesthesia maintenance:propofol was given by closed-loop infusion,the target BIS value was set at 50,cisatracurium 0.1 mg/kg was intravenously injected when TOF ratio was increased to 10%;remifentanil was given by target-controlled infusion at the target plasma concentration of 4-6 ng/ml.Oxycodone 0.07 mg/kg was intravenously injected at 5 min before stretching internal organs.Before anesthesia,at 5 min after laryngeal mask airway placement,at skin incision and while stretching internal organs,analgesia nociception index value and perfusion index value were recorded,the development of intraoperative cardiovascular events,emergence time,time for removal of laryngeal mask airway,time of post-anesthesia care unit stay and development of nausea and vomiting and back and shoulder pain within 48 h after surgery were also recorded.Results Compared with group GA,the analgesia nociception index value and perfusion index value were significantly increased while stretching internal organs,and the incidence of intraoperative hypertension,tachycardia,and nausea and vomiting and back and shoulder pain within 48 h after surgery were decreased in group OX-GA (P<0.05).Conclusion Oxycodone can inhibit nociceptive stimuli,is helpful in maintaining stable hemodynamics and reduces postoperative complications in elderly patients undergoing laparoscopic cholecystectomy under combined general anesthesia.
6.The effects treated with PICKCa rabies vaccine to mice and beagle dogs infected rabies wild viruses and volunteers immunized with PICKCa rabies vaccine
Haixiang LIN ; Gelin XU ; Jie WU ; Shoufeng ZHANG ; Rongliang HU ; Lietao LI ; Fang LIU ; Shirui ZHANG ; Yi ZHANG
Chinese Journal of Experimental and Clinical Virology 2016;(1):37-40
Objective To test the immune therapeutic effects of PICKCa adjuvant rabies vaccine for the post-exposure mice and beagle dogs and immune memory effect for human.Methods For the mice and beagle dogs first to infect with rabies wild virus and then immunize with PICKCa rabies vaccine.For volunteers, first to immunize with PICKCa rabies vaccine after 2.5 years to take peripheral blood mononuclear cell and then to check cells secreted interferon-gwith flow cytometry. Results In 3 independent assays of post-explosure immunization of mice and beagle dogs PICKCa rabies vaccine were much better then commercial adjuvant-free rabies vaccines, the protective rate from 20%-30%to 70%-100%Also, in the assay of cells secreted IFN-γby peripheral blood mononuclear cells from volunteers immunized by PICKCa rabies vaccine the IFN-γcell levels were much higher than control.Conclusions Compared with commercial adjuvant-free rabies vaccines the PICKCa rabies vaccine had significant immune therapeutic effects in the mice and dogs.Also PICKCa rabies vaccine had good immune memory effect in human.
7.The effect of umbilical cord mesenchymal stem cells transplantation for the GD mice on regulatory B cells
Rongliang LI ; Koulan HAN ; Xiaoli DAI ; Cheng HUANG ; Weiyong LI
Chongqing Medicine 2015;(9):1168-1170
Objective To investigate the therapeutic mechanism of umbilical cord mesenchymal stem cell(UC-MSCs)trans-plantation for the graves disease(GD)mice .Methods Thirty two mice were divided into 3 groups as following :normal control group (G0) ,GD control group (G1) ,UC-MSCs group(G2) .Enzyme linked immunosorbent assay(ELISA)was used to measure the level of TSAb in blood serum and the expression of FT4 was measured by chemiluminescence .Thyroid sections were stained with hema-toxylin and eosin(HE)for histological examination .Splenocytes were stained with multicolor immunofluorescence and detected by flow cytometry to analyze the percentages of CD1dhiCD5+CD19+ regulatory B cells(Bregs) .Expressions of IL-10 and TGF-βmR-NA in spleen organization were measured by Real-time PCR .Results At 26 weeks ,the level of TSAb in blood serum in G2 was more significantly decreased than in G1(P<0 .05) ,and the level of CD19+ B in spleen in G2 was also more significantly decreased than in G1(P<0 .05) ,however ,the percentage of CD1dhiCD5+CD19+ Bregs splenocytes and the levels of IL-10 and TGF-βmRNA in spleen organization were more significantly increased than in G1(P<0 .05) .The concentration differences of TSAb in serum was negatively correlated with the percentage differences of CD1dhi CD5+ CD19+ Bregs ,however ,positively correlated with the expres-sion differences of IL-10 and TGF-βmRNA in spleen before and after transplantation .Conclusion Activation of Bregs may be one of the mechanisms of UC-MSCs therapeutic effect on GD mice .
8.Ultrasonic monitoring of non-alcoholic fatty liver disease in rabbits model
Rongliang ZHANG ; Jia WEI ; Yongping LU ; Yuan YUAN ; Yueyue TANG ; Yunyan LI
Journal of Medical Postgraduates 2015;(1):28-31
Objective Recently, The incidence of fatty liver is increasing , with the improvement of people′s living standard. We here established an available model with non-alcoholic fatty liver disease in rabbits and then studied its sonographic findings . Methods Forty male Japanese rabbits were randomly divided into 2 groups:control group and model group.The rabbits in model group were fed with high-fat diet for the establishment of the model of non-alcoholic fatty liver disease.The rabbits in control group were fed with standard diet. At the baseline, 12th, 16thand 20th week , all the livers in 2 groups were scanned by ultrasonography, and at the end of 20 th week, all the rabbits in 2 groups were killed for pathological analysis. Results Both the ultrasonography and in pathology demonstrated the successful establishment of non-alcoholic fatty liver models.The result of study demonstrated significant differences (P<0.05).At the 12th week, all of the 19 livers in model group showed fatty livers in sonography:8 low-, 9 middle-and 2 high-grade.The degree of steatosis aggravated pro-gressively with modeling time.Most of livers showed middle-grade fatty at the 16th week, and at the 20th week, they all demonstrated middle-or high-grade fatty liver:10 middle-and 9 high-grade, furthermore, ascites occurred in 3 cases.The pathological results were consistent with the findings of sonography, and fibrosis were observed in pathology. Conclusion Animal model with non-alcoholic fatty liver disease in rabbits can be established by high-fat diet.Besides, ultrasonography is a good method to monitor the establishment of the model .
9.Effect of artesunate on OAZ gene expressions in MRL/lpr lupus mice
Rongliang LI ; Koulan HAN ; Cheng HUANG ; Xiaoli DAI ; Lingyun SUN ; Xuebing FENG
Chinese Journal of Rheumatology 2014;18(6):380-384,后插1
Objective To investigate the in vivo effects of artesunate (ART) treatment on OAZ gene expressions in MRL/lpr lupus mice.Methods Twenty-four 12-week-old female MRL/lpr lupus mice were randomly divided into two groups by the random number table,i.e.,the lupus control group and the ART treatment group,12 in each group.Besides,another 8 BABL/C mice were recruited as the normal control group.Peripheral blood mononuclear cells (PBMC) were collected from lupus mice before treatment as well as 4 week and 8 week after treatment,and RNA was extracted and reverse transcripted to cDNA.mRNA expression levels of OAZ and Id1-3 were measured by using real-time polymerase chain reaction (PCR),and the data between the two groups were analyzed by t test,a plurality of samples were compared with the single factor analysis of variance.Serum levels of IFN-γ,IL-4,BAFF and ANA were tested by enzyme-linked immunosorbent assay (ELISA).Relationships of the gene expression levels with levels of cytokines and ANA were analyzed.Statistical analysis were uising t test,ANOVA and LSD-t test.Results mRNA expression levels of OAZ,Id1 and Id3 gene (△Ct:12.9±0.8,12.0±0.4,10.2±0.8) in lupus mice were significantly different from 8 weeks after the treatment comparing to those in the lupus control group (△Ct:9.8±1.0,9.3± 1.1,8.1±0.8) and the normal control group (△Ct:13.9±1.2,11.4±0.7,4.7±0.8,10.3±1.0)(F=7.46,P=0.008; F=6.37,P=0.032; F=5.63,P=0.042),and alteration of OAZ mRNA expression levels before and after the treatment were positively correlated with changes of Id1,Id3 levels (r=0.867,0.947; P<0.05),and levels of IL-4 and ANA were significantly lower 8 weeks after the treatment than those in the lupus control group (P<0.05); while level of IFN-γwas higher than those in the lupus control group (P<0.05).Alteration of OAZ mRNA expression levels before and after the treatment were negatively correlated with changes of ANA,BAFF levels (r=-0.955,r=-0.937; P<0.05) and positively correlated with changes of Th1/Th2 levels (r=0.976,P<0.01).Conclusion The expression of genes involving in the OAZ and downstream gene are effectively reduced along with the alteration of several cytokines and ANA after ART treatment.OAZ signaling pathway can play an important role in ART treatment for SLE.
10.Ex-vivo ureteroscopy of urolithiasis in donor kidneys prior to renal transplant: 1 case report and literature review
Jianlin YUAN ; Geng ZHANG ; Rongliang QIN ; Lijun YANG ; Xiaojian YANG ; Fei LIU ; Fuli WANG ; Ceyu DUAN ; Zhibin LI ; Shuaijun MA ; Kepu LIU ; Dongli RUAN
Chinese Journal of Urology 2012;(11):856-858
Objective To evaluate the safety and efficacy of ex vivo ureteroscopy (ExURS) as means of rendering a donated kidney stone-free in a living related renal transplantation.Methods Clinical data were analysed of ExURS as means of rendering a donated kidney stone-free in a living related renal transplantation and relative literature was reviewed.The ECT results showed that GFR of left and right kidney was 38.7 and 42.3 ml/min respectively.The donor underwent a left laparoscopic donor nephrectomy.Immediately after cold perfusion,ExURS was performed with 4 ℃ ice-cold saline irrigation.Basket extraction and holmium laser lithotripsy was performed.Calculi were fragmented with pneumatic intracorporeal lithotripsy and fragments were removed with forceps.F6 indwelling ureteral stents were kept during transplantation.Urine flowed out immediately after reperfusion of the allograft and the distal ureter appeared edema 2 min later.Routine ureter-bladder wall anti-reflux replantation was done after the resection of the edema part.Results Pyeloscopy was successfully performed.A total of 2 calculi,diameter 8,12 mm,were visualized in donor kidney.The ex vivo treatment time was 30 nin.The warm and cold ischenia time was 60s and 50 min,respectively.There were no intraoperative complications.At a follow-up at 8 months,there was no recurrent calculi formation in the recipient and donor.Conclusion ExURS is technically feasible to render a stone-bearing kidney stone free without compromising ureteral integrity or renal allograft function.

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