1.Research on serum TSGF levels in healthy people and cancer patients in Guangzhou area
Wen SHI ; Chenyu SHANG ; Lin CHEN ; Li LIN ; Jianhua XU
International Journal of Laboratory Medicine 2014;(19):2648-2649
Objective To investigate the results of tumor specific growth factor(TSGF) levels in in healthy people and cancer patients in Guangzhou areas .Methods The serum TSGF levels of 6 615 health check-up receivers and 287 patients with cancer in the hospital from July 2012 to June 2013 were detected .Results In health check-up receivers ,the level and positive rate of TSGF were higher in >40-50 age women .The level and positive rate of TSGF in men were increased with age .The levels of TSGF in pa-tients with lung cancer ,liver cancer and digestive system tumor were higher than that in health check-up receivers(P<0 .01) ,but there has no statistically difference between genital system cancer patients and healthy check-up receivers(P>0 .05) .Conclusion Performing TSGF test in health examination is great significance to the early diagnosis of malignant tumors .The reference value range of TSGF should be set according to different gender and age .
2.The depression and anxiety state of heart transplantation patients
Chenyu YE ; Yi LIN ; Yulin WANG ; Hao CHEN
Chinese Journal of Organ Transplantation 2012;33(1):41-43
ObjectiveTo investigate the depression and anxiety state of heart transplantation patients. MethodsFifty-weight heart transplantation outpatients were assessed by Hamilton Depression Rating Scale (HAMD) and Hamilton Anxiety Rating Scale (HAMA) in Zhongshan Hospital during October 2010 to April 2011.Those diagnosed with depression disorder should meet the criteria of depression in Chinese Classification of Mental Disorder-3nd version (CCMD-3) and the score of HAMD≥14,and those diagnosed with anxiety disorder should meet the criteria of anxiety disorder CCMD-3 and the score of HAMA≥ 14.The diagnoses of concurrent depression and anxiety were made.Results The prevalence of depression disorder and anxiety disorder was respectively 15.5% (9/58) and 22.5% (13/58).The prevalence of depression disorder and anxiety disorder within 12 months was respectively 16.7% (2/12) and 33.3% (4/12).The score of HAMD was positively related to HAMA score (P<0.01 ).ConclusionThe prevalence of depression disorder and anxiety disorder is very high and the co-existence of depression and anxiety is very common.
3.Correlation and significance of combined detection of D-Dimer,cTnI and NT-ProBNP in acute coronary syndrome
Di HUANG ; Tao LI ; Chenyu SHANG ; Yan MA ; Xiaobin WU ; Haibiao LIN ; Yunlong GAO ; Peifeng KE
International Journal of Laboratory Medicine 2015;(16):2375-2377
Objective To explore the significance of combined detection of D-Dimer,cardic troponin I(cTnI)and N-terminal pro-brain natriuretic peptide(NT-ProBNP)in acute coronary syndrome and the correlation between them.Methods 143 patients with acute coronary syndrome were selected as the observation group,and 40 CAG negative people as the control group.The difference between the two groups was compared and the correlation was analyzed.According to different diagnostics,patients in the observa-tion group were separated into 3 groups,unstable angina pectoris,non ST segment elevation myocardial infarction and ST segment elevation myocardial infarction.The correlation of D-Dimer,cTnI and NT-ProBNP with the severity of coronary artery disease was analyzed.Results The levels of D-Dimer,cTnI and NT-ProBNP in the observation group were higher than those in the control group,and the difference was statistically significant(P < 0.05 ).The severity of coronary artery disease had positive correlation with the test results (P <0.05).Conclusion The combined detection of D-Dimer,cTnI and NT-ProBNP could help to diagnose the acute coronary syndrome and the test result has a positive correlation with the severity of acute coronary syndrome.
4.Prokaryotic expression of NrdF1, PE_PGRS35, Rv1985c and Rv1986 of Mycobacterium tuberculosis and the potential application for the detection of antibodies in bovine tuberculosis
Lin SUN ; Yan LIU ; Chenyu MIN ; Yachen HU ; Xiang CHEN ; Xinan JIAO
Chinese Journal of Zoonoses 2014;(8):782-786
Proteins encoded by regions of difference (RD) of Mycobacterium tuberculosis (MTB) constitute a potential source of specific antigens for vaccine development and immunodiagnosis .In the present study ,four genes named nrdF1 , pe_pgrs35 ,rv1985c ,and rv1986 from RD2 of MTB were cloned and overexpressed in E .coli with the induction of IPTG .Western blotting assay showed that these recombinant fusion proteins could well react with anti-His tag monoclonal antibody ,which in-dicated their good immunoreactivity .The serodiagnosis potential applications of these four proteins in bovine tuberculosis were further evaluated .An indirect ELISA assay was established by using fusion proteins as coating antigens for detection of their specific antibodies in bovine sera .The positive rates were 7 .35% in NrdF1 ,22 .06% in PE_PGRS35 ,16 .18% in Rv1985c and 16 .18% in Rv1986 respectively .All the results suggest that these fusion proteins have the potential application in serodiagnosis of bovine tuberculosis .
5.Clinical significance of determination of serum neutrophil gelatinase associated lipocalin in the diagnosis of contrast induced nephropathy
Ji MA ; Siyi LI ; Lin CHEN ; Chenyu SHANG ; Yonghui DAI ; Jianhua XU
Chongqing Medicine 2015;(19):2626-2628
Objective To discuss the clinical significance of serum neutrophil gelatinase associated lipocalin(NGAL)detection in the diagnosis of contrast induced nephropathy .Methods A total of 299 inpatients with contrast medium in department of inten‐sive care unit(ICU) ,department of cardiovascular disease ,department of urology from Guangdong Province Hospital of Traditional Chinese Medicine were enrolled ,and the fasting blood glucose and lipids were detected .Sera were collected before examination of contrast medium and 1 ,2 and 6 d after examination of contrast medium respectively .Serum creatinine(SCr)and cystatin C(CysC) were detected ,the concentration of NGAL was determined .CIN was defined as of increased by 44 μmol/L or 25% from baseline in SCr within 24-48 h .The NGAL detection variation tendency was analyzed in different time point .Results In 299 cases ,CIN oc‐curred in 28 patients ,the incidence rate was 9 .36% .The diabetes patients in the incidence of CIN was 16 .21% (12/74) ,no inci‐dence of diabetic patients was 7 .11% (16/225) .When compared with that of before contrast ,CIN in serum of patients with Cr and CysC coronary angiography in 2 d significantly increased after contrast medium ,returned to the level before angiography on 6 d .But the serum NGAL in angiography 1 d after it was significantly increased (P<0 .05) ,statistically significant differences compared with pre contrast ,and was still at a high level on sixth day .Conclusion Prediction of CIN level of serum NGAL in contrast after 1 d could be a good predictor for CIN ,and the prediction time is earlier than the serum levels of Cr and CysC .The level of serum NGAL can be used for early diagnosis of CIN .
6.Related factors affecting postoperative pneumonia in patients with cavernous cerebrovascular malformation
Fangyu WANG ; Chenyu DING ; Wenhua FAN ; Yuanxiang LIN ; Zhangya LIN ; Dezhi KANG
Chinese Journal of Neuromedicine 2019;18(11):1146-1150
Objective To explore the related factors affecting postoperative pneumonia in patients with cavernous cerebrovascular malformation (CCM).MethodsClinical data of 151 CCM patients admitted to our hospital from January 2010 to January 2017 were retrospectively collected. Patients were divided into postoperative pneumonia group (n=11) and postoperative non-pneumonia group (n=140) according to the occurrence of postoperative pneumonia. Univariate Logistic regression analysis, multivariate Logistic regression analysis and receiver operating characteristic (ROC) curve were used to screen the relevant factors influencing the occurrence of postoperative pneumonia in CCM patients and evaluate the predictive value of relevant factors in postoperative pneumonia.ResultsAs compared with patients from postoperative non-pneumonia group, patients from postoperative pneumonia group had significantly increased modified Rankin scale (mRS) scores and significantly higher percentage of CCM combined with hemorrhage, and significantly decreased Glasgow coma scale (GCS) scores (P<0.05). Multivariate Logistic regression analysis showed that preoperative GCS scores (OR=4.75, 95%CI: 1.14-19.80,P=0.032) and mRS scores (OR=15.61, 95%CI: 3.22-75.58,P=0.001) were independent factors influencing the occurrence of postoperative pneumonia. ROC curve showed that the sensitivity and specificity of mRS scores≥4 to predict postoperative pneumonia were 45.5% and 95.7%, respectively, and the sensitivity and specificity of GCS scores≤13 to predict postoperative pneumonia were 54.5% and 85.7%, respectively.ConclusionFor CCM patients with preoperative GCS scores≤13 or mRS scores≥4, more attention should be paid to perioperative lung management and occurrence of postoperative pneumonia should be vigilant.
7.Diagnostic value of cerebrospinal fluid lactic acid in bacterial meningitis after craniotomy for cerebral hemorrhage in adults
Long HE ; Wenhua FANG ; Chenyu DING ; Xiaorong YAN ; Peng LIN ; Zhangya LIN
Chinese Journal of Neuromedicine 2019;18(12):1241-1247
Objective To explore the diagnostic value ofcerebrospinal fluid (CSF) lactic acid (LA) level in bacterial meningitis after craniotomy for cerebral hemorrhage in adults.Methods The clinical data of 162 patients with cerebral hemorrhage,admitted to and accepted craniotomy in our hospital from April 2013 to April 2018,were retrospectively collected;patients were divided into infected group (n=75) and non-infected group (n=87) according to whether postoperative bacterial meningitis occurred;univariate analysis was used to compare the differences of CSF-LA concentration and other indicators of CSF between patients of the two groups;multivariate Logistic regression analysis was used to screen the independent factors affecting the occurrence of postoperative bacterial meningitis;receiver operating characteristic (ROC) curve was used to analyze the predictive values of CSF-LA and other indicators in postoperative bacterial meningitis.Furthermore,17 patients with positive bacterial CSF were divided into Gram-positive (G+) bacteria group (n=9) and Gram-negative (G-) bacteria group (n=8);the predictive values of CSF-LA and other indicators for postoperative meningitis of G-bacteria patients were analyzed in the same way.Results (1) The CSF-LA concentration in infected group ([6.3±2.8] mmol/L) was significantly increased as compared with that in non-infected group ([3.3±1.6] mmol/L,P<0.05);the results of multivariate Logistic regression analysis showed that CSF-LA was an independent influencing factor for postoperative bacterial meningitis (odd ratio=l.547,95% confidence interval:1.029-2.326,P=0.036);ROC curve results revealed that the area under the curve of CSF-LA concentration in the diagnosis of bacterial meningitis after craniotomy was 0.854 (95% confidence interval:0.790-0.904),and the optimal cut-off value was 4.61 mmol/L,with sensitivity of 69.3%,specificity of 92.0%,positive predictive value of 88.1% and negative predictive value of 77.7%.(2) The CSF-LA concentration in G-bacteria group ([9.9±2.9] mmol/L) was significantly increased as compared with that in G+ bacteria group ([5.2±3.1] mmoi/L,P< 0.05);ROC curve results revealed that,in patients with positive bacterial CSF,the area under the curve of CSF-LA concentration in diagnosis of meningitis with G-bacteria after craniotomy was 0.861 (95% confidence interval:0.610-0.978),and the optimal cut-off value was 7.20 mmol/L with sensitivity of 87.5%,specificity of 88.9%,positive predictive value of 87.5%,and negative predictive value of 88.9%.Conclusion Detection for concentration of CSF-LA can help predicting bacterial meningitis afier craniotomy for cerebral hemorrhage and identify G+ and G-bacteria meningitis.
8.Effect of bone marrow mesenchymal stem cell on the expression of IL-10 and TNF-α in mice with ischemia-reperfusion acute kidney injury
Chenyu LIN ; Wen CHEN ; Xihui MA ; Xiangrui KONG ; Wenmei FAN ; Yong HAN ; Li XIAO ; Bingyi SHI
Organ Transplantation 2021;12(5):563-
Objective To evaluate the effect of bone marrow mesenchymal stem cell (BMSC) on the expression of interleukin (IL)-10 and tumor necrosis factor (TNF)-α in mice with ischemia-reperfusion acute kidney injury (IR-AKI). Methods All mice were randomly divided into the sham operation group (control group), ischemia-reperfusion injury group (IRI group) and BMSC treatment group (BMSC group), with 6 mice in each group, respectively. The renal function and pathological changes of mice were detected. The cell apoptosis of renal tissues of mice was determined. The expression levels of serum IL-10 and TNF-α of mice were quantitatively measured. The mouse BMSC was randomly divided into the control and hypoxia-reoxygenation groups (IRI group), and the expression levels of IL-10 and TNF-α in cell supernatant were determined. Results The renal structure of mice was normal in the control group, severe damage was observed in the IRI group, and mild damage occurred in the BMSC group. Compared with the control group, the renal tissue injury scores were significantly higher in the IRI and BMSC groups (both
9.Analysis of related factors influencing the main extended direction of pituitary macroadenoma
Yong QIN ; Kunzhe LIN ; Chenyu DING ; Deyong XIAO ; Liangfeng WEI ; Shousen WANG
Chinese Journal of Endocrine Surgery 2018;12(1):55-60
Objective To investigate the related influence factors of the main extended direction of the pituitary macroadenoma in the vertical direction.Methods Clinical data of 184 pituitary macroadenoma patients were collected and analyzed retrospectively.The main extended direction in the vertical direction of the tumor was taken as the dependent variables.Patients were divided into two groups according to the suprasellar extension value of each tumor,(ie:suprasellar extension value>0 and suprasellar extension value≤0).10 selected indicators (age,sex,tumor type,diameter of diaphragmatic opening,sphenoid sinus type,sella type morphology,main sphenoid sinus septum bias,maximum width of sphenoid sinus septum,tumor cyst,number of longitudinal sphenoid sinus septum) were taken as independent variables and the factors which may influence the main extended direction were analyzed and selected by logistic regression method.Results Among the 184 patients,there were 121 cases extending mainly to the suprasellar direction,while the left cases extending mainly to the opposite direction.Statistical analysis showed the tumor type (P=0.026),sphenoid sinus type (P=0.003),sella type morphology (P=0.046),diameter of diaphragmatic opening (P=0.003) and maximum width of the sphenoid sinus septum (P=0.009) were the independent predictors influencing the main expansion direction of pituitary macroadenomas in the vertical direction.Conclusions The pituitary macroadenoma is more likely to expand infrasellar in patients with sellar or sellaoccipital sphenoid sinus,sac sella turcica morphology,GH adenoma,smaller diaphragmatic opening diameter and narrower width of sphenoid sinus septum.The pituitary macroadenoma is more likely to expand suprasellar in patients with presellar sphenoid sinus,wok and cylinder sella turcica morphology,nonGH adenoma,larger diaphragmatic opening diameter and wider width of sphenoid sinus septum.
10.Importance of interdisciplinary joint training to professional degree postgraduate education of ophthalmology
Guiqiu ZHAO ; Jiaqian JIANG ; Cui LI ; Chenyu LI ; Jing LIN ; Lina ZHANG
Chinese Journal of Medical Education Research 2020;19(3):267-270
Ophthalmology is interrelated with a variety of disciplines, and its features determine the need for interdisciplinary joint training of postgraduate students majoring in ophthalmology. The joint training can optimize the students' knowledge structures, enhance their innovation abilities and improve their overall qualities. However, there are still some factors restricting the interdisciplinary joint training in the existing education system. We propose to establish a full-time administrative management system, build a multidisciplinary communication platform, attach great importance to tutors' interdisciplinary researches, and establish dual mentor or multi-tutor training system. Moreover, a reasonable interdisciplinary evaluation system and various incentive mechanisms are advocated to improve the quality of postgraduate education in ophthalmology.