1.Application of surface enhanced laser desorptionfionization time-of-flight mass spectrometry technology in the diagnosis of primary liver carcinomas
Shuwei WEN ; Zhijun DANG ; Tianwen YUAN ; Yaoqin XUE
Cancer Research and Clinic 2009;21(8):463-465
Objective To explore the tumor markers for the diagnosis of primary liver carcinomas (PLC) by detecting the serum protein spectrum differently expressed between PLC patients and healthy controls. Methods We detected the serum protein spectrum in 50 PLC patients and 50 healthy controls using surface enhanced laser desorption ionization time-of-flight mass spectrometry (SELDI-TOF-MS) technique and find the significant protein peaks. The serum Alpha-fetoprotein (AFP) levels in all 100 serum samples were also measured by ELISA. Results The protein peaks, which could discriminate healthy individuals from PLC patients, were detected. Four protein molecules (3354.71, 8825.80, 4345.08, 13 715.01) had a significant difference between PLC patients and the normal controls (P <10-5), indicating that these protein molecules might be a potential marker for PLC. The specificity and sensitivity of SELDI-TOF-MS were 94% and 90% respectively. Sixteen PLC patients were AFP positive and the sensitivity was 54%(27/50). Conclusion With a high specificity and sensitivity, the detection of serum protein spectrum can be performed easily and quickly by SELDI-TOF-MS technique, which provides a serological way in identifying PLC and most likely to benefit from AFP strategies.
2.Regulation of immune functions by combined Jinlong capsule and interventional therapy in patients with primary liver cancer
Tianwen YUAN ; Shuwei WEN ; Zhijun DANG ; Xiaoqian ZHANG ; Junping CHANG ; Yaoqin XUE
Chinese Journal of Clinical Oncology 2013;(18):1116-1118
Objective:To determine the effects of Jinlong capsule combined with interventional therapy on the immune functions of primary hepatocellular carcinoma patients. Methods:Sixty randomly selected cases of clinically diagnosed primary hepatocellular carcinoma were divided into the observation group and the control group. Three days after operation, the observation group was given four Jinlong capsules three times a day for 30 days (one treatment). Meanwhile, the control group received interventional therapy after the operation. One to four days following one treatment, peripheral blood specimens were collected from the two groups to determine the cellular immune function indices. Results:The cell numbers (mean) of the peripheral blood components CD3, CD4, NK, SIL-2R, TSGF, and SIL-2R and the CD4/CD8 ratio in the observation group showed no significant difference before and after treatment. In the control group, these indices were significantly different before and after treatment. Conclusion:The Jinlong capsule facilitates the cellu-lar immunity recovery of patients with primary hepatocellular carcinoma after interventional therapy.
3.Ligation of intersphincteric fistula tract versus incision-thread-drawing procedure for complicated anal fistula: A Meta-analysis
Xiang CUI ; Jie DANG ; Zhengkui PENG ; Zhijun MA ; Xuechao XU ; Tianlong MA ; Zhiyun HE
International Journal of Surgery 2017;44(12):837-841,封4
Objective To systematically investigate the clinical efficiency and safety of ligation of inter sphincteric fistula tract versus incision-thread-drawing procedure for complicated anal fistula.Methods Searched PubMed,The Cochrane Library,CNKI,WanFang Data,and VIP from inception to May 2016,to collect randomized controlled trials of ligation of inter sphincteric fistula tract versus incision-thread-drawing procedure for complicated anal fistula.Search term included ligation of inter sphincteric fistula tract,fistula,incision-thread-drawing procedure,randomized controlled trial.The literatures were screened according to inclusive criteria,data were extracted and the quality of included studies was evaluated,and then meta-analysis was performed using RevMan 5.2 soft ware.A total of 5 randomized controlled trials including 305 patients were included.Results The results of meta-analysis showed that compared with incision-thread-drawing procedure,ligation of inter sphincteric fistula tract had a significant difference in amount of bleeding during surgery (MD =-18.30,95% CI:-19.91 ~-16.69,P < 0.000 01),the duration of pain (MD =-4.38,95% CI:-4.69 ~-4.08,P < 0.000 01),healing time (MD =-10.28,95% CI:-15.71 ~-4.86,P =0.0002),hospital stay (MD =-7.44,95%CI:-10.87~-4.02,P<0.000 1),recurrence rate (OR=0.31,95%CI:0.10~0.91,P=0.03).There was no significant difference in Operation time (MD =-5.83,95 % CI:-7.64 ~-4.02,P < 0.000 01),effective percentage (OR =4.35,95% CI:0.89 ~ 21.32,P =0.07) between both groups.Conclusion Compared with incision-thread-drawing procedure,ligation of inter sphincteric fistula tract shows significant advantage in cure rate,postoperative healing time,reducing post-operation pain,anal function protection and recurrence rate.
4. Key points of high SMAS facelift
Zhijun WANG ; Yan WANG ; Heng SHI ; Wenjun FAN ; Ning DANG ; Xiaoyan MA ; Li YE
Chinese Journal of Plastic Surgery 2018;34(10):809-813
Objective:
To summarize the key points of high SMAS facelift.
Methods:
Forty-six patients who had received high SMAS facelift were included in this study. All the patients had subcutaneous dissection by classic facelift incision. The temporal region dissection was performed superficial to middle temporal fascia to avoid temporal branches injury. The zygomatic ligaments were released by sharp and blunt dissection at malar prominence and zygomatic arch. After sub-SMAS dissection, a complete SMAS-platysma flap was raised including temporal, malar, lower face, neck, and one third or half of the midface.
Results:
Forty patients had postoprative follow-up for more than one year. Twenty patients showed " excellent" results, eighteen patients had " good" results , two patients " common" . The good and excellent rate was 95%.
Conclusions
The key points of high SMAS facelift to achieve ideal outcome depend on the safe dissection of superficial temporal fascia and the release of zygomatic ligaments.
5.Application of multimedia textbook in the health education of permanent bladder colostomy patients
Aixia ZHAO ; Zhijun DANG ; Guangxian LENG ; Li WEI
Chinese Journal of Modern Nursing 2014;20(17):2087-2090
Objective To explore the application of multimedia textbook in the health education of permanent bladder colostomy patients in order to find a way of health education of grasping colostomy nursing technology , fistula replacement technology and related knowledge in the short time in permanent bladder colostomy patients and their families .Methods Sixty bladder colostomy patients from January 2009 to December 2012 were chosen and divided into the experimental group and the control group according to the random number table, each with 30 cases.The all patients were surveyed by the self -designed questionnaire about health needs.The experimental group received the theoretical education with multimedia and subsequently one to one instruction, and the control group received the routine health education namely the related nursing knowledge was explained when the nurses carried out fistula replacement every time .The clinical efficacy and the incidence of complications were compared between two groups .Results The mastering rate of bladder colostomy related knowledge , colostomy nursing technology , fistula replacement technology were respectively 100 .00%, 96.67%, 90.00%in the experimental group , and were better than 36.67%, 26.67%, 10.00%in the control group, and the differences were statistically significant (χ2 =27.805, 31.093, 38.400, respectively;P <0.05).The times of hospital admission again after hospital discharge was (6.3 ±1.4) in the experimental group, and was significantly less than (36.2 ±6.6) in the control group, and the difference was statistically significant (t=22.224,P<0.05).No difference was found in the incidence of complications between two groups (P>0.05).Conclusions Application of multimedia textbook in the health education can make the permanent bladder colostomy patients and their families adapt more quickly bladder colostomy and master colostomy nursing technology , fistula replacement technology and related knowledge in the short time , and does not increase complications , and is worthy of clinical promotion .
6.Application of network information combined with objective structured clinical examination (OSCE) in the evaluation of clinical skills in obstetrics and gynecology
Jinghai GAO ; Jianhong DANG ; Yujiao ZHANG ; Yan LUO ; Jie HE ; Jing WANG ; Zhijun JIN ; Xiaojun LIU
Chinese Journal of Medical Education Research 2018;17(10):1063-1067
Objective To explore the value of OSCE system combined with intelligent network in-formation platform in clinical skills assessment of obstetrics and gynecology. Methods 112 clinical medi-cal students who participated in the practice of gynecology and obstetrics in Second Military Medical Uni-versity in 2017 were randomly divided into the experimental group (network information OSCE) and the control group (traditional OSCE). The teaching results were evaluated by the questionnaire survey of teachers and students and the examination results as well. The statistical analysis was made with the Chi-square test and the t test respectively. Results According to the questionnaire survey of two skills assessment methods, the satisfaction index of the experimental group was higher than that of the control group in both teachers and students, and the difference was statistically significant (P<0.05). The total time of examination in the experimental group was lower than that of the control group, and the difference was statistically significant (P<0.05). The final total score and the results of case analysis and clinical operation examination of experi-mental group were all higher than those of the control group, but there was no statistical difference (P>0.05). Conclusion OSCE combined with the network information system has an unparalleled advantage in the assessment of the obstetrics and gynecology department. The system will promote clinical education of ob-stetrics and gynecology and the evaluation of the clinical ability of the medical students to a new height, which deserves popularization.
7.Impact of Toxoplasma gondii type I rhoptry protein 16 on programmed cell death ligand 1 expression and its binding to programmed cell death 1 in lung adenocarcinoma cells
Guangqi LI ; Yuning ZHOU ; Shaohan MA ; Mei TIAN ; Tiantian DANG ; Zhijun ZHAO
Chinese Journal of Schistosomiasis Control 2025;37(1):44-54
Objective To investigate the impact of Toxoplasma gondii type I, II and III rhoptry protein 16 (ROP16) on programmed cell death ligand 1 (PD-L1) expression in lung adenocarcinoma cells, and to examine the effects of T. gondii type I ROP16 protein on the relative PD-L1 expression, the relative PD-L1 distribution on the cell membrane surface, and the binding of programmed cell death 1 (PD-1) to PD-L1 in lung adenocarcinoma cells. Methods Lentiviral vectors overexpressing T. gondii type I, II and III ROP16 proteins were generated, and transfected into the human lung adenocarcinoma A549 cell line. A549 cells were used as a blank control group, and A549 cells transfected with an empty lentiviral expression vector were used as a negative control group, while A549 cells transfected with lentiviral vectors overexpressing T. gondii type I, II and III ROP16 proteins served as experimental groups. Stably transfected cells were selected with puromycin and verified using Western blotting, quantitative real-time PCR (RT-qPCR), and immunofluorescence assays. The PD-L1 expression was quantified at translational and transcriptional levels using Western blotting and RT-qPCR assays in A549 cells in the five groups, and the relative PD-L1 distribution was detected on the A549 cell membrane surface using flow cytometry. In addition, the effect of T. gondii type I ROP16 protein on the PD-1/PD-L1 binding was measured in A549 cells using enzyme-linked immunosorbent assay (ELISA). Results The relative ROP16 protein expression was 0, 0, 1.546 ± 0.091, 1.822 ± 0.047 and 2.334 ± 0.089 in the blank control group, negative control group, and the T. gondii type I, II and III ROP16 protein overexpression groups (F = 1 339.00,P < 0.001), and the relative ROP16 mRNA expression was 2.153 ± 0.949, 2.436 ± 1.614, 14.343 ± 0.020, 12.577 ± 0.285 and 15.090 ± 0.420 in the blank control group, negative control group and the T. gondii type I, II and III ROP16 protein overexpression groups, respectively (F = 483.50,P < 0.001). The ROP16 expression was higher in the T. gondii type I, II and III ROP16 protein overexpression groups than in the blank control group at both translational and transcriptional levels (allP values < 0.001). Immunofluorescence assay revealed that T. gondii type I, II and III ROP16 proteins were predominantly localized in A549 cell nuclei. Western blotting showed that the relative PD-L1 protein expression was 0.685 ± 0.109, 0.589 ± 0.114, 1.007 ± 0.117, 0.572 ± 0.151, and 0.426 ± 0.116 in the blank control group, negative control group, and the T. gondii type I, II and III ROP16 protein overexpression groups (F = 9.46,P < 0.05), and RT-qPCR assay quantified that the relative PD-L1 mRNA expression was 1.012 ± 0.190, 1.281 ± 0.465, 1.950 ± 0.175, 0.889 ± 0.251, and 0.230 ± 0.192 in the blank control group, negative control group, and the T. gondii type I, II and III ROP16 protein overexpression groups (F = 14.18,P < 0.05). The PD-L1 expression was higher in the T. gondii type IROP16 protein overexpression group than in the blank control group at both translational and transcriptional levels (both P values < 0.05). Flow cytometry detected that the relative distributions of PD-L1 protein were (10.83 ± 0.60)%, (11.23 ± 0.20)%, and (14.61 ± 0.50)% on the A549 cell membrane surface (F = 28.31, P < 0.05), and the relative distribution of PD-L1 protein was higher in the T. gondii type IROP16 protein overexpression group than in the blank control group and negative control group (both P values < 0.001). ELISA measured significant differences in the absorbance (A) value among the T. gondii type IROP16 protein overexpression group, the blank control group and the negative control group if the concentrations of the recombinant PD-1 protein were 0.04 (F = 10.45, P < 0.05), 0.08 μg/mL (F = 11.68, P < 0.05) and 0.12 μg/mL (F = 52.68, P < 0.05), and the A value was higher in the T. gondii type IROP16 protein overexpression group than in the blank control group and the negative control group (both P values < 0.05), indicating that T. gondii type IROP16 protein promoted the PD-L1/PD-1 binding in A549 cells in a concentration-dose manner. Conclusions T. gondii type IROP16 protein overexpression may up-regulate PD-L1 expression in A549 cells at both transcriptional and translational levels and the relative PD-L1 distribution on the A549 cell membrane surface, and affect the PD-1/PD-L1 binding in a concentration-dependent manner.