1.Preliminary study on common molecular markers between endometriosis and ovarian cancer
Liying CHENG ; Kuo LIU ; Deguo XU
Cancer Research and Clinic 2017;29(2):116-119
Objective To determine common molecular markers between endometriosis and ovarian cancer . Methods The specimens from 31 endometriosis patients who underwent laparoscopic excision , 28 other disease patients with normal oarium and 35 ovarian cancer patients who received the ovariectomy were collected. Expressions of transforming growth factor β1 (TGF-β1), cyclooxygenase 2 (COX-2), vascular endothelial growth factor (VEGF), estrogen receptor 1α(ER-1α), progesterone receptor (PR), androgen receptor (AR) and aromatase (CYP19) were detected by real-time reverse transcription polymerase chain reaction (RT-PCR). Results Compared with those in normal oarium group, the mRNA levels of TGF-β1, VEGF, ER-1α, AR, CYP19 and COX-2 in endometriosis group were increased by 2.05 fold, 2.20 fold, 3.32 fold, 1 . 45 fold , 3 . 19 fold and 3 . 00 fold , respectively , and the mRNA level of PR was reduced by 69 % ( all P< 0.05), while those in ovarian cancer group were increased by 5.61 fold, 7.61 fold, 7.49 fold, 4.79 fold, 7.76 fold and 5.35 fold, respectively, and the mRNA level of PR was reduced by 95 % (all P< 0.05). Conclusion In endometriosis and ovarian cancer tissues, the expression levels of TGF-β1, COX-2, VEGF, ER-1α, AR and CYP19 are increased, and the expression levels of PR are decreased, which maybe suggest both diseases are potentially relevant.
2.Cloning, prokaryotic expression and tissue expression profile of human novel gene HBVDNAPTP1 transactivated by hepatitis B virus DNA polymerase
Yongzhi LUN ; Liying ZHANG ; Jun CHENG
Medical Journal of Chinese People's Liberation Army 1982;0(01):-
Objective To clone the human target gene HBVDNAPTP1 transactivated by hepatitis B virus DNA polymerase obtained by screening with suppression subtractive hybridization (SSH) and bioinformatics techniques. To construct prokaryotic expressive vector of HBVDNAPTP1 gene, induce the expression of recombinant protein in E. coli, and analyze the expression level of HBVDNAPTP1 gene in human tissues. Methods The DNA fragment of HBVDNAPTP1 was amplified by reverse transcription polymerase chain reaction (RT-PCR) taking mRNA from HepG2 cells as the template, and the correct DNA fragment was then inserted into inducible prokaryotic expressive vector pET-32a (+). The competent BL21 (DE3) E. coli was transformed, and then cultured and induced with IPTG. The expressed HBVDNAPTP1 was confirmed with Western blot. UniGene database was used to analyze the chromosome mapping and tissue expression profile of HBVDNAPTP1 gene. Results The DNA fragment of HBVDNAPTP1 was amplified by RT-PCR. HBVDNAPTP1 expressive vector was constructed. After transformation with pET-32a(+)-HBVDNAPTP1 and induction with IPTG, recombinant HBVDNAPTP1 was expressed and confirmed by Western blot. The expression of genomic location of HBVDNAPTP1 gene was low in multiple-tissues with the exception of pituitary gland, tonsil, tongue, thymus, trachea and umbilical cord. Conclusion The recombinant HBVDNAPTP1 gene could be expressed in prokaryotic expression system of E. coli. The chromosome mapping and tissue expression level of HBVDNAPTP1 gene is tentatively conceived.
3.Analysis of medical functional dispersal in Beijing based on capital formation account
Weiyu WANG ; Yan JIANG ; Xiaowei MAN ; Liying ZHAO ; Wei CHENG
Chinese Journal of Health Policy 2017;10(1):21-26
Objective:To provide policy recommendations for Beijing public health departments to grasp the dy-namic allocation of healthcare resources and the advantage of medical functional dispersal, and making appropriate health policies to rationally adjust the allocation of health resources. Methods:To study the dynamic function of Bei-jing medical, this study uses the method of accounting of cases summary of the annual report on health finance through the descriptive analysis of the gross fixed capital formation in various regional government-run health facili-ties. Results:The results of this study show that the quality of medical health administrative resources was higher, but effectively dispersed in 2015. By contrast, the basic public health resources allocation was unbalanced. Conclu-sion:This study puts forward the corresponding health policy suggestions. On one hand, it is important to make fur-ther policy to encourage high quality medical resources to be effectively relieved and the regional planning should be done according to market demand by avoiding the blind construction at the early stages. On the other hand, much at-tention should be paid on the balanced development of the basic public health service ability and the coordinated de-velopment of administrative capacity in health, and supporting policies should be formulated, which should rationally allocate the public health resources for a better overall medical functional dispersal.
4.Gene expression of the skin and sweat glands in different development stages of embryo
Liying CHEN ; Kunwu FAN ; Jinshui WANG ; Xuming YU ; Cheng XU
Chinese Journal of Tissue Engineering Research 2013;(24):4421-4435
10.3969/j.issn.2095-4344.2013.24.008
5.Smac playing vital role in enhancing the sensitivity of cyclophosphamide and doxorubicin in breast cancer MCF-7 cell line
Liying CHENG ; Tao SUN ; Wenqiang CHEN ; Qingsong MENG
Journal of International Oncology 2015;42(12):881-885
Objective To investigate the influence of Smac to the chemosensitivity of cyclophosphamide (CTX) and doxorubicin (DOX) in MCF-7 cells.Methods MCF-7 cells were exposed to CTX,DOX and the combination of both.3-(4,5-dimethyl-2-thiazoly)-2,5-diphenyl-2 H-tetrazolium bromide (MTT) assay was used to estimate the cell viability.Apoptosis was measured by acridine orange staining and Ho.33342/PI dou-ble staining.The mRNA and protein expressions of Smac were determined by RT-PCR and Western blotting.The study also analyzed the changes of pro-apoptotic proteins active caspase-3 and active caspase-9.Results CTX,DOX and the combination of both drugs reduced the cell survival rates in a concentration-dependent manner.The cell viability after being treated with 4.0 μg/ml CTX or 0.2 μg/ml DOX or 2.0 μg/ml CTX and 0.1 μg/ml DOX for 48 hours was (52.90 ± 8.78) %,(53.35 ± 6.29) % and (34.19 ± 5.43) %,respectively.The drug combination developed a stronger inhibitory effect compared to the single drugs (t =9.051,P=0.014;t =9.074,P =0.014).The Smac mRNA and protein levels in 2.0 μg/ml CTX and 0.1 μg/ml DOX group were 7.47 ± 0.82 and 4.13 ± 0.36,which were higher than those in 4.0 μg/ml CTX group (3.27 ± 0.40 and 2.28 ± 0.27;t =-50.120,P =0.000;t =-42.588,P =0.000) and 0.2 μg/ml DOXgroup (3.34±0.62and2.45±0.40;t=-46.233,P=0.000;t=-39.541,P=0.000).Furthermore,pro-apoptotic proteins active caspase-3 and active caspase-9 increased activity was confirmed by Western blotting.Conclusion Smac plays a vital role in enhancing the sensitivity of chemotherapeutic drugs CTX and DOX in MCF-7 cell line.
6.Resting state functional magnetic resonance imaging in patients with first-episode major depression disorder
Bing ZHAO ; Guoqiang WEI ; Liying HOU ; Cheng XU ; Kerang ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(4):334-337
Objective To explore the abnormally functional brain region in resting state in first-episode major depression disorder patients with function magnetic resonance imaging.Methods 51 patients diagnosed with first-episode major depression disorder according to DSM-Ⅳ and 50 gender-,age-,and education-matched healthy controls completed resting state fMRI scan.The severity of depression,and unpredicted homodynamic responses across the whole brain were analyzed using Hamilton depression scale,regional homogeneity and amplitude of low-frequency fluctuation,respectively.Results Compared with control group,the right medial frontal gyms (BA6,MNI:3,-3,63,K=34) and left medial frontal gyrus(BA9,MNI:-9,36,30,K=10) (P<0.001,uncorrected) in the case group showed higher regional homogeneity,with statistical significance.Compared with control group,right medial frontal gyrus (BA6,MNI:3,-3,63,K =35) and right posterior cingulated gyrus (BA31,MNI:3,-36,36,K =11) (P< 0.001,uncorrected)in the case group showed higher amplitude of low-frequency fluctuation,with statistical significance.Conclusion First-episode major depression disorder patients in resting state had several abnormally functional brain regions,which might be related to the pathological mechanism of depression disorder.
7.Differentiation efficiency of human umbilical cord mesenchymal stem cells into hepatocytes under two kinds of liver homogenate supernatants: a comparative study
Cheng YAN ; Gai XUE ; Liying WU ; Jianfang LIU ; Yanning HOU
Chinese Journal of Tissue Engineering Research 2015;19(19):2993-2998
BACKGROUND:Previous studies have demonstrated that normal rat liver homogenate supernatant can induce human umbilical cord mesenchymal stem cels to differentiate into hepatocyte-like cels with partial hepatocyte functions. However, whether fibrotic liver homogenate supernatant can work or how the inducing effect is remains unclear. OBJECTIVE:To investigate the differentiation potential of human umbilical cord mesenchymal stem cels into hepatocytes under the normal liver and fibrotic liver microenvironment in vitro. METHODS:Liver fibrosis was induced in the SD rats by repeated intraperitoneal injections of 3% thioacetamide at a dose of 200 mg/kg body mass, twice a week for 4 weeks, and then fibrotic liver tissues and normal liver tissues were used to prepare liver homogenate supernatants. Passage 3 human umbilical cord mesenchymal stem cels were used and divided into standard control group (cels were cultured in DMEM/F12 with 10% fetal bovine serum), fibrotic liver homogenate supernatants group (cels were cultured in DMEM/F12 with 10% fetal bovine serum and 50 g/L fibrotic liver homogenate supernatants), normal liver homogenate supernatants group (cels were cultured in DMEM/F12 with 10% fetal bovine serum and 100 g/L normal liver homogenate supernatants). The morphological changes of the cels in each group were recorded under inverted microscope; the protein levels of CK18, AFP, CYP3A4, CYP2E1, CYP2D6 and TPH2 were evaluated using western blot assay. Furthermore, the concentration of albumin in the cels was measured. RESULTS AND CONCLUSION:After a 7-day inducement, the stem cels in liver homogenate supernatants groups lost their fusiform shape and changed into hepatocyte-like cels with the morphous of round shape. Compared with the standard control group, the hepatocyte-like cels in the two liver homogenate supernatants groups exhibited human hepatocyte biomarkers, CK18 and AFP. The standard control group cels could express a little amount of CYP2E1, while cels in the two liver homogenate supernatants groups could express CYP3A4, CYP2E1, CYP2D6, TPH2. Compared with the standard control group, the expression level of CYP2E1 in the two liver homogenate supernatants groups increased significantly (P < 0.01), and however, the relative levels of CYP3A4, CYP2E1, CYP2D6, TPH2 in the two liver homogenate supernatants groups showed no statistical significance (P > 0.05). At the same time, compared with the standard control group, the concentration of albumin in the two liver homogenate supernatants groups markedly increased (P < 0.01), but there was no difference between the two liver homogenate supernatants groups (P > 0.05). Experimental findings demonstrated that both of normal liver tissue and fibrotic liver tissue microenvironments could induce human umbilical cord mesenchymal stem cels to differentiate into hepatocyte-like cels. To achieve the same effect, compared with normal liver tissue, fibrotic liver tissue required lower concentrations, suggesting that fibrotic liver tissue microenvironment may be more conducive to differentiation of umbilical cord mesenchymal stem cels into hepatocytes.
8.Investigation of Cost Basic Data Availability of Public Traditional Chinese Medicine ;Hospitals
Shunrui ZHANG ; Liying ZHAO ; Yue CHEN ; Yan JIANG ; Wei CHENG
Chinese Journal of Information on Traditional Chinese Medicine 2015;(5):4-6
Objectives To understand essential basis data availability for implementation of cost accounting in TCM hospitals. Methods Costs of a total of 1588 TCM hospitals were investigated by conducting the baseline survey via questionnaires in 2013. Results Departmental basic data (including ratio of office staff and entire staff, ratio of outpatient and inpatient departments in clinical department), and construction data for housing were well accessible, while utility fee and internal service data were not. Conclusion ①Public TCM hospitals need to improve and specify the basic cost data. ②Differences exit among different types and levels of hospitals in the availability of data. ③There are still difficulties in carrying out cost accounting in public TCM hospitals, which needs strong supports from all relevant departments.
9.Prevalence of depressive symptoms among freshmen of a college in Hunan Province
PENG Haiyan ; LONG Liying ; CHEN Xi ; CHENG Ming
Journal of Preventive Medicine 2024;36(10):901-904,909
Objective:
To investigate the prevalence of depressive symptoms among college freshmen and analyze their influencing factors, so as to provide insights into the prevention and intervention of depressive symptoms among college students.
Methods:
The freshmen enrolled in a college of Hunan Province from 2020 to 2022 were recruited, and demographic data, diet and sleep status were collected using questionnaire surveys. Depressive symptoms were evaluated using Patient Health Questionnaire-9. Factors affecting depressive symptoms were analyzed using a multivariable logistic regression model.
Results:
Totally 17 862 questionnaires were allocated, and 16 480 valid questionnaires were recovered, with an effective rate of 92.26%. There were 3 374 students of 2020 cohort, 7 038 students of 2021 cohort and 6 068 students of 2022 cohort, 6 029 boys (36.58%) and 10 451 girls (63.42%). The prevalence of depressive symptoms among freshmen was 41.37%. Multivariable logistic regression analysis showed that female (OR=1.482, 95%CI: 1.377-1.594), enrolling through the college entrance examination (OR=1.561, 95%CI: 1.384-1.809), depression history (OR=1.990, 95%CI: 1.513-2.618), abnormal marital status of parents (divorced, OR=1.197, 95%CI: 1.064-1.348; other problem, OR=1.401, 95%CI: 1.174-1.672), abnormal diet (mild, OR=2.883, 95%CI: 2.585-3.105; moderate, OR=6.755, 95%CI: 4.653-9.808; severe, OR=38.897, 95%CI: 12.200-124.012) and abnormal sleep (mild, OR=2.785, 95%CI: 2.593-2.992; moderate, OR=9.009, 95%CI: 7.011-11.578; severe, OR=29.281, 95%CI: 14.163-60.536) were associated with increased risk of depressive symptoms among college freshmen.
Conclusion
The prevalence of depressive symptoms among college freshmen is relatively high, and is influenced by gender, mode of admission, history of depression, parental marital status, diet and sleep.
10.Prognosis of combined liver-kidney transplantation
Liying SUN ; Zhijun ZHU ; Yihe LIU ; Hong ZHENG ; Yonglin DENG ; Cheng PAN ; Zhongyang SHEN
Chinese Journal of Organ Transplantation 2012;33(9):528-530
Objective To analyze the curative effects and survival results of combined liver kidney transplantation (CLKT).Methods From 2002 to 2011,the clinical data of 36 Chinese patients who underwent CLKT were retrospectively analyzed in our centre.The age of recipients was 47.4 ±13.1 years.Four patients had undergone liver transplantation and 7 patients kidney transplantations before CLKT, respectively. The complications and the survival were analyzed. Results The survival patients were followed up for 47.9 months (29.1 - 115.7).The cumulative 1-,3 and 5-year patient survival rate was 88.7%,85.4% and 81.4%; The 1,3- and 5-year survival rate of liver graft was 79.8%,76.3% and 72.3%; The 1-,3- and 5 year survival rate of kidney graft was 85.7%,82.4% and 78.2%.Three patients underwent liver re-transplantation due to severe biliary complications,and one patient kidney re-transplantation due to renal allograft dysfunction.Conclusion CLKT is a effective treatment for end-stage liver disease with renal insufficiency and achieves excellent results.