1.Expression of proline rich protein 11 in esophageal cancer tissues and its effect on malignant biological behaviors of TE-2 cells
CHEN Jie ; KANG Chunyan ; ZHOU Huicong ; NIU Zhaoxiao ; YANG Hongmei
Chinese Journal of Cancer Biotherapy 2019;26(12):1305-1310
Objective: To investigate the expressionof proline-rich protein 11 (PRR11) in esophageal carcinoma (EC) tissues and to study it’s effect on the proliferation and metastasis of human EC TE-2 cells in vitro. Methods: Eighty patients were pathologically diagnosed with EC the Department of Thoracic Surgery of the Second Affiliated Hospital of Zhengzhou University from October 2016 to October 2018, and their surgically resected cancer tissues and corresponding para-cancerous tissues were collected for this study. qPCR was used to detect the expression of PRR11 mRNAin tissues or cells. Log-rank Test was used to analyzethe relationship between the expression of PRR11 in EC tissues and general data, histological type, lymphatic metastasis, depth of invasion and TNM stageof the EC patients. Kaplan-Meierplot was used to analyze the association between PRR11 mRNA and patients’prognosis. TE-2 cells were transfected with lentivirus shRNA to construct cell line with PRR11 knockout and corresponding control cell lines, as shPRR11#1, shPRR11#2 and control group. qPCR and WB assays were used to verify the mRNA and protein expressions of PRR11 in cell lines respectively. MTT was used to examine the proliferation of transfected cells, and Transwell experiments were used to detect cell invasion and migration. Results: The expression of PRR11 mRNA in EC was higher than that in para-cancer tissues (P<0.05). There was significant correlation between PRR11 over-expression and histological type, lymphatic metastasis, depth of invasion and TNM stage(all P <0.05), and high PRR11 expression was significantly related with the poor prognosis of EC patients (P<0.05). The mRNA and protein expressions of PRR11 in cells of shPRR11#1 and shPRR11#2 groups were significantly lower than those in control group (all P <0.05). MTT assay showed that the proliferation of cells in shPRR11#1 and shPRR11#2 groups was significantly lower than that in the control group (P<0.05 or P<0.01). The results of Transwell invasion and migration assays showed that the average number of cells with in each field of viewin shPRR11#1 and shPRR11#2 groups was significantly lower than that in the control group (P<0.01). Conclusion: PRR11 is over-expressed in EC tissues and PRR11 over-expression is closely related to the occurrence, progression and prognosis of esophageal cancer. In vitro experiments have also demonstrated that knockdown of PRR11 can inhibit the proliferation, invasion and migration of EC. PRR11 can be used as a potential molecule marker and drug targets for EC.
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2.Development and verification of reference nucleic acid materials of H9N2 influenza viruses by real-time RT-PCR.
Jie SONG ; Cui LI ; Jing LI ; Shuang ZHANG ; Wenhui FAN ; Lirong LIU ; Hongyi JIA ; Aibi YU ; Ke HAO ; Chunyan NIU ; Jing WANG ; Qizu ZHAO ; Wenjun LIU
Chinese Journal of Biotechnology 2018;34(10):1579-1586
The HA gene of H9N2 influenza virus (A/chicken/Hunan/04.14 (H9N2)) was amplified and sequenced. The RNA was synthesized by in vitro transcription. The RNA transcription solutions were diluted to 10⁹ copies/μL using the RNA storage solution. The aliquoted RNA solutions were used to evaluate the homogeneity and stability. The results were determined by the average value obtained from four independent laboratories. Furthermore, the fluorescence quantitative RT-PCR method was also developed to verify the detection accuracy of clinical samples. The detection limit of this method is approximately 10 copies. Taken together, the RNA transcription solution established in our study can used as positive standard reference for rapid detection of H9N2 influenza virus.
3. Advances in epidemiology and serum markers for the noninvasive diagnosis of nonalcoholic fatty liver disease
Gong FENG ; Na HE ; Juning WANG ; Man MI ; Chunyan NIU
Chinese Journal of Hepatology 2018;26(6):476-480
The global prevalence rate of nonalcoholic fatty liver disease (NAFLD) has increased year by year, and it has become the number one cause for chronic liver disease in China. In addition, the trend of NAFLD has become more pronounced and evident in female gender and younger age group. The long-term persistence of fatty liver disease may cause serious consequences. There are no accepted diagnostic criteria for diagnosing noninvasive diagnosis of NAFLD. Alpha-ketoglutarate is a newly discovered serological marker of high diagnostic value and considered the most valuable potential biomarker along with cytokeratine-18 (CK-18).
4.Role of ceramide in development and progression of nonalcoholic fatty liver disease
Haijing HAN ; Xue QI ; Chunyan NIU
Journal of Clinical Hepatology 2017;33(8):1584-1588
Nonalcoholic fatty liver disease (NAFLD) is a clinicopathological syndrome caused by liver damage factors except alcohol and has the major feature of diffuse macrovesicular hepatocyte steatosis.Thetwo-hit hypothesis can partly explain the pathogenesis of NAFLD.Recent studies have found that ceramide is a key molecular messenger involved in the development and progression of NAFLD,and as a sphingolipid,it is closely associated with the two-hit hypothesis.This article reviews the role of ceramide in NAFLD.
5.Predictive value of combined measurement of D-dimer, fibrinogen, and peripheral blood leukocyte count for severity of acute pancreatitis
Journal of Clinical Hepatology 2017;33(8):1522-1526
Objective To explore the predictive value of combined measurement of D-dimer (D-D),fibrinogen (FIB),and peripheral blood leukocyte count (PBLC) for the severity of acute pancreatitis (AP).Methods We collected the clinical data of 134 hospitalized patients who were diagnosed with AP in the General Hospital of Ningxia Medical University from January 2014 to January 2016.These patients were divided into mild acute pancreatitis (MAP) group (n =72) and severe acute pancreatitis (SAP) group (n =62).Also,these patients were divided into hyperlipidemic acute pancreatitis (HAP) group (n =43) and biliogenic acute pancreatitis (BAP) group (n =91).The initial measurements of D-D,FIB,and PBLC for the patients who were admitted to the hospital within 24 hours of onset and received no treatment before admission were collected.The t test was used for comparison of normally distributed continuous data,while the Mann-Whitney U test was used for non-normally distributed continuous data.The chi-square test was used for comparison of categorical data.In addition,the Spearman correlation test and Pearson correlation test were used for correlation analyses.The receiver operating characteristic (ROC) curve was used to analyze the predictive values of D-D,FIB,and PBLC for the severity of AP.Results Compared with the MAP group,the SAP group had significantly increased D-D and FIB levels in peripheral blood (Z =-3.171,P =0.002;t =-2.339,P =0.021).Compared with the HAP group,the BAP group had a significantly higher D-D level (Z =-4.178,P < 0.001),an insignificantly higher FIB level (P > 0.05),and a significantly lower PBLC (t =2.466,P =0.015).The areas under the ROC curve (AUCs) of D-D,FIB,and PBLC were 0.659,0.611,and 0.591,respectively,and D-D had a higher value than FIB and PBLC in predicting the severity of SAP.The AUC of a combination of D-D,FIB,and PBLC was 0.712.Plasma D-D and FIB levels were positively correlated with the severity of AP (r =0.275 and 0.192,P =0.001 and 0.026).Conclusions D-D,FIB,and PBLC are important for early judgment of the severity of AP,and a combination of the three markers has greater significance.
6.Advances in the treatment of nonalcoholic fatty liver disease
Journal of Clinical Hepatology 2017;33(12):2433-2438
Nonalcoholic fatty liver disease (NAFLD)has become a major liver disease in the world and its prevalence rate continues to in-crease. As a component of metabolic syndrome,it has become a risk factor for many serious cerebrovascular and cardiovascular diseases. Due to the complex pathogenesis of NAFLD or the combined/ mutual effect of pathogenic factors,there are still no widely accepted effective therapies. In recent years,more and more studies have revealed new pathogeneses of NAFLD and the prospects of corresponding treatment. This article introduces the recent advances in the treatment of NAFLD,including lifestyle intervention,drug therapy,integrated traditional Chinese and Western medicine therapy,and bariatric surgery. In the aspect of drug therapy,this article introduces the drugs commonly used in clinical practice and new drugs in phase Ⅱ and Ⅲ clinical trials and their therapeutic effects.
7.The effect of nonalcoholic fatty liver disease on the severity of acute pancreatitis
The Journal of Practical Medicine 2017;33(21):3563-3565
Objective To investigate the relationship between nonalcoholic fatty liver disease and the severity of acute pancreatitis,the data of patients with acute pancreatitis was collected to provide clinic basis for the diagnosis and treatment,severity assessment,prognostic judgement,and prevention of acute pancreatitis. Methods SPSS22.0 was used to analyze all data.Mann-Whitney U test(in case of non-normal distribution)was used to compare data between two groups.Chi-square test was used to counting data.Risk factors were analyzed by using logistic regression analysis. Results The severity of acute pancreatitis in patients with nonalcoholic fatty liver disease had a statistically significance with that of patients without nonalcoholic fatty liver disease(χ2=3.968, P = 0.046);nonalcoholic fatty liver disease(95% CI:4.132 ~ 22.575,OR = 9.658,P < 0.01)had a correlation with the severity of acute pancreatitis.Conclusion Nonalcoholic fatty liver disease was associated with the severity of acute pancreatitis.Nonalcoholic fatty liver disease was the risk factors for the severity of acute pancreatitis.
8.Role of 5-hydroxytryptamine in the pathogenesis and treatment of nonalcoholic fatty liver disease
Journal of Clinical Hepatology 2017;33(6):1169-1172
The prevalence rate of nonalcoholic fatty liver disease (NAFLD) has been increasing year by year.However,since the complex pathogenesis of NAFLD has not been fully clarified,there still lacks a gold standard for the diagnosis and treatment of NAFLD.5-Hydroxytryptamine (5-HT) can affect the development and progression of NAFLD via several links and thus change the course of NAFLD.This article introduces the association between 5-HT and NAFLD,the role of 5-HT in the pathogenesis of NAFLD,and its future application in treatment.
9.Advances in Adult Neurogenesis in Mammal Subventricular Zone
Mengqi ZHANG ; Jiao ZHANG ; Chunyan ZHANG ; Dongsheng XIE ; Yifan MO ; Lei WANG ; Wei GE ; Haichen NIU
Progress in Modern Biomedicine 2017;17(22):4387-4390
Neurogenesis is a process in which the neuronal stem cells differentiate into functional neurons including the cell proliferation,differentiation and migration.Previously,it was believed that neurogenesis is a prenatal process and the adult ependymal cells are incapable of regeneration.Now it is clear that mammalian brain retains the ability to generate new ceils in specific regions.One of the regions is subventricular zone of the lateral ventricles,new generated neurons and glial cells later migrate to olfactory and repair dysosmia through the RMS road.Here we will review the advances in adult neurogenesis in mammal subventficular zone.
10.Research advances in differential diagnosis of benign and malignant ascites
Journal of Clinical Hepatology 2016;32(7):1433-1438
Differential diagnosis of benign and malignant ascites is of a great value in determining etiology, evaluating prognosis, and determining therapy regimens. There are many diagnostic methods for ascites, but up to now, no method can achieve high sensitivity and specificity and meet the requirements of clinical economics and feasibility at the same time. Therefore, searching for an ideal method for differential diagnosis of ascites has become an important topic of current research. This article describes the clinical value of diagnostic methods, such as molecular biological detection, cytological examination, combined determination of tumor markers, and routine tests, in the differential diagnosis of benign and malignant ascites, analyzes the diagnostic efficiency of related biomarkers, and points out that combined determination of various parameters has an increased value in the differential diagnosis of benign and malignant ascites.

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