1.Construction and identification of shRNA lentiviral vector targeting TPX2 gene
Haiping CHANG ; Shufang SONG ; Jie REN
Basic & Clinical Medicine 2017;37(7):945-952
Objective To construct the lentiviral RNA interference vector targeting TPX2 and to obtain the human cervical cancer HeLa cell strain stably infected by TPX2-shRNA for studying the relationship between human cervical carcinoma and TPX2 gene.Methods By targeting TPX2 gene,four double-stranded DNA hairpin structures corresponding to shRNA were designed,synthesized and connected with Pglv2-U6-Puro to construct the recombinant plasmids.Then these recombinant plasmids were transformed into DH5α competent cells.The positive clone was extracted and transfected into 293T cells for virus packages after sequenced correctly.Human cervical carcinoma HeLa cell infected by these recombinant lentiviral was screened by Puromycin,then stable cell strain was obtained.The silencing effect of TPX2 in HeLa cell was detected by RT-fluorescent quantitative PCR and Western blot.Cell cycle and cell apoptosis wer detected by Flow cytometry.Results Sequencing results confirmed that 5 lentiviral was packaged successfully.The steady cell strain transfered TPX2-shRNA was screened with 0.4 μg/mL puromycin.HeLa cells infected by recombinant lentivirus all play the gene silencing effect especially in the group of TPX2-shRNA-1.In the group of TPX2-shRNA-1,TPX2mRNA (0.21 ± 0.07) and protein (0.19 ± 0.28) rela tive expression level is lower than those in the control group (1.08±0.07) (P<0.01) and(0.64±0.03) (P< 0.01)respectively;G2 and S-phase cells are higher than those in the control group (P<0.05)and the apoptosis rate was significantly more than those in the control group (P<0.05).Conclusions The effective TPX2 genetic interference sequence was obtained,lentiviral vectors carrying TPX2shRNA was successfully constructed,and the HeLa cell strain with TPX2 silenced was successfully screened,which lay the research foundation for the study of the role of TPX2 in cervical cancer.
2.Prevalence and risk factors of chronic kidney diseases in hospitalized patients with type 2 diabetes mellitus
Jie XU ; Juhong YANG ; Chunyan SHAN ; Miaoyan ZHENG ; Ying WANG ; Huizhu REN ; Baocheng CHANG
Chinese Journal of Endocrinology and Metabolism 2014;30(7):597-600
Through retrospective analysis of the clinical and laboratory data of 1 466 inpatients with type 2 diabetes mellitus(T2DM),we investigated the prevalence of chronic kidney disease (CKD) and analyzed the risk factors.The prevalence of CKD in hospitalized patients with T2DM was 52.25%.In the patients with CKD,protein urine was present in 93.47% of the cases,27.93% of them had glomerular filtration rate(eGFR) ≤60 ml · min-1 · 1.73 m-2,damage of renal tubular function was present in 24.28%,and abnormal renal imaging in 14.88%.Logistic regression showed that age,body mass index(BMI),duration of diabetes,systolic blood pressure,serum uric acid,low density lipoprotein-cholesterol (LDL-C),and smoking were independently associated with patients of T2 DM and CKD.The prevalence of CKD was increased with aging,diabetic course,BMI,and LDL-C.CKD is a common chronic complication in patients with T2DM,especially in patients with prolonged course,advanced age,and obesity.Much attention should be paid to early detection of CKD in patients with diabetes.In addition to detecting urinary protein and eGFR,renal tubular function and morphological examination should also be included.
3.Correlations between the polymorphisms of serine hydroxymethyl-transferase 1 gene and the adverse reactions of high-dose methotrexate in children with acute lymphoblastic leukemia
Hui DING ; Lijie YUE ; Jie YU ; Cai XIE ; Chunlan YANG ; Yanfei REN ; Chang LIU
Chinese Journal of Clinical Oncology 2014;(3):162-165
Objective:To investigate the correlation between polymorphisms of serine hydroxymethyltransferase1 gene and the adverse reactions of high-dose methotrexate (HD-MTX) in children with acute lymphoblastic leukemia (ALL). Methods:A total of 51 patients with ALL were treated with HD-MTX, and clinical manifestations after HD-MTX treatment were evaluated retrospectively. cD-NA was obtained from mRNA. The polymorphisms of SHMT1 gene containing rs1979277, rs3783, rs1979276, and rs12952556 sites were tested by denaturing gradient gel electrophoresis and direct sequencing. Effects of SHMT1 gene polymorphisms on HD-MTX ad-verse reactions were evaluated. Results:Severe adverse reactions in ALL patients treated with HD-MTX appeared to be mainly neutro-penia and hepatoadverse reactions. The frequency distributions of rs3783 (C>G), rs1979276 (C>T), rs12952556 (A>G), and rs1979277 (C>T) were the same. The polymorphisms of rs1979277 showed no correlation with neutropenia (P>0.05) but rs1979277 CT and TT genotypes were correlated with hepatoadverse reactions (CT: OR=0.129, 95% CI: 0.020 to 0.817, P=0.03; TT: OR=0.103, 95% CI:0.017 to 0.620, P=0.013). Conclusion: No correlation was found between the combination of rs1979277, rs3783, rs1979276, rs12952556, and neutropenia, but one or more of these loci may reduce the risk of hepatoadverse reactions.
4.Preliminary clinical evaluation of nerve growth factor gel on neuroprotecion in patients with glaucoma
Ren-Yi, WU ; Chang-Quan, HUANG ; Jie-Xuan, LV ; Qian-Qian, HU ; Wei-Yi, HUANG ; Ya-Zhang, XU
International Eye Science 2015;(2):255-258
To evaluate the neuroprotective effect of nerve growth factor ( NGF ) on acute angle-closure glaucoma patients after trabeculetomy.METHODS: Patients with viral keratitis who underwent trabeculectomy in treatment of acute angle - closure glaucoma in Xiamen Eye Center of Xiamen University from December 2011 to October 2013 were selected and completed the treatment, 61 eyes of 45 cases were followed up. The treatment group of 23 cases (32 eyes) with acute angle-closure glaucoma patients were treated by NGF gel for 3mo after trabeculetomy, while in the control group 22 cases (29 eyes) were treated by normal saline replaced NGF. All patients were followed up for at least 12mo, visual acuity, perimetry, retinal nerve fiber layer ( RNFL) thickness and cup/disc ratio of the patients were followed up during the treatment. The safety of topical use of NGF gel was also evaluated.RESULTS:ln all patients, the intraocular pressure ( lOP) was successfully controlled under 21mmHg and the visual acuity was markedly increased in the affected eye after trabeculectomy. Compared with control group, the postoperative lOP and visual acuity had no significant differences in treatment group (P>0. 05). The average light sensitivity of perimetry and mean defect were better than that in control group postoperative 6 and 12mo; The results of optical coherent tomography ( OCT ) and Heiderburg Retina Tomography ( HRT )-Ⅲ showed that RNFL thickness was significantly greater than that in control group, while cup/disc ratio significantly less than that in control group postoperative 6 and 12mo. Ocular surface damage, corneal endothelium to reduce and other eye complication were no observed in treatment group.CONCLUSlON:Acute angle-closure glaucoma treated by NGF gel after operation is effective and safe.
5.Is fire needle superior to Western medication for herpes zoster? A systematic review and meta-analysis
Dong LI ; Zhuo-Mao MO ; Ren-Wen ZHANG ; Min-Min CHANG ; Bin-Bin YANG ; Shu-Jie TANG
Journal of Acupuncture and Tuina Science 2019;17(5):312-320
Objective:To compare the effectiveness of fire needle versus Western medicine in the treatment of herpes zoster. Methods:Randomized controlled trials comparing fire needle with Western medicine in the treatment of herpes zoster were identified using 8 databases. A meta-analysis was performed using RevMan 5.3 software. Results:Eight trials involving 569 patients were included in this meta-analysis, and the results showed that fire needle was superior to Western medicine comparing the effective rate [risk ratio (RR)=1.13, 95% confidence interval (CI): 1.06 to 1.20;P=0.0002], the visual analog scale (VAS) score [mean difference(MD)=–7.95, 95% CI: –10.71 to –5.20;P<0.00001], time of pain disappearance (MD=–7.61, 95%CI: –9.38 to –5.84;P<0.00001), time of blister-stop (MD=–1.34, 95%CI: –1.51 to –1.18;P<0.00001), time of crusted scab (MD=–2.92, 95%CI: –3.62 to –2.23;P<0.00001), and time of scab off (MD=–4.64, 95%CI: –5.83 to –3.46;P<0.00001). In addition, a significantly lower incidence of postherpetic neuralgia was found in the fire needle group in 30 d (RR=0.23, 95%CI: 0.11 to 0.51;P=0.0002) and 60 d (RR=0.33, 95%CI: 0.12 to 0.91; P=0.03) after treatment. Conclusion:Fire needle has a favorable effect in increasing the effective rate, relieving pain, recovering skin lesions and decreasing incidence of postherpetic neuralgia in the treatment of herpes zoster. However, considering the limitations in this study, the findings should be interpreted cautiously.
6.Alteration of Nitric Oxide Synthase Subtype Expression in Contralateral Testis of Rat in Response to Unilateral Testicular Torsion Followed by Detorsion.
Seung June OH ; Chang Shin PARK ; Kyung Hoon LEE ; Dae Joong KIM ; Dea Jung LIM ; Jin Ren JIE ; Ahn Ki LEE ; Hwang CHOI
Korean Journal of Urology 2000;41(5):650-658
No abstract available.
Animals
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Nitric Oxide Synthase*
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Nitric Oxide*
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Rats*
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Spermatic Cord Torsion*
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Testis*
7.Prognostic Significance of the Nadir Prostate Specific Antigen Level after Hormone Therapy for Prostate Cancer Patients.
Cheol KWAK ; Seong Jin JEONG ; Chang ho LEE ; Ren Jie JIN ; Tae Hee PARK ; Sang Eun LEE
Korean Journal of Urology 2001;42(9):948-953
PURPOSE: We tried to find out whether the nadir PSA level after hormone therapy affected the progression into hormone-refractory prostate cancer (HRPC). MATERIALS AND METHODS: We reviewed the progressive status and the survival of the 177 patients with stage C or D prostate cancer who had received hormone therapies. The relative efficacy of the nadir PSA level for predicting the progression into HRPC was evaluated by the receiver operating characteristic (ROC) analysis. RESULTS: 85.4% of patients responded to the treatment and 78% of responders progressed into HRPC. Median time to nadir PSA level after hormone therapy and to HRPC were 8.1 and 24.0 months, respectively. The nadir PSA levels were under 0.2ng/ml in 31%, 0.2-1.0ng/ml in 23%, 1.1-10ng/ml in 42%, and over 10ng/ml in 5% of the responders (n=151). As the nadir PSA levels were lower, pretreatment PSA levels, Gleason score and the number of cases progressing into HRPC were significantly lower (p<0.05). In addition, the nadir PSA level was inversely correlated with the interval to the establishment of HRPC (r= 0.465, p<0.05). By univariate analysis, the bone metastasis, the nadir PSA level, PSA level at six months after treatment and pretreatment PSA level were associated with the progression into HRPC. Only the nadir PSA level was an independent factor by multivariate analysis. ROC analysis disclosed an accuracy of 86.2% for the nadir PSA level to predict the progression into HRPC after two years. By setting the lower limit of the nadir PSA level to 1.1ng/ml, the sensitivity was 80.3% and the specificity was 83.8%, being most adequate. CONCLUSIONS: The nadir PSA level after hormone therapy may be the most important factor that can predict the progression into HRPC. Also, in consideration of sensitivity and specificity, it would be adequate to set the lower limit of the nadir PSA level to 1.1ng/ml.
Humans
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Multivariate Analysis
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Neoplasm Grading
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Neoplasm Metastasis
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Prognosis
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Prostate*
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Prostate-Specific Antigen*
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Prostatic Neoplasms*
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ROC Curve
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Sensitivity and Specificity
8.The association study of rs5498 (A/G K469E) and rs1799969 (G/A R241G) in intercellular adhesion molecule 1 gene polymorphism with diabetic peripheral neuropathy in Han population
jie Zhan REN ; yun Xiao TENG ; chang Ke HUANG ; feng Jian YU
Tianjin Medical Journal 2017;45(12):1271-1275
Objective To investigate the association of genetic polymorphisms of intercellular adhesion molecule 1 (ICAM-1) with diabetic peripheral neuropathy (DPN). Methods A total of 607 type 2 diabetes patients from the Affiliated Hospital of Weifang Medical University were enrolled in this study between June 2013 and December 2014. Rs5498 (A/G K469E) and rs1799969 (G/A R241G) in the ICAM-1 gene were genotyped by using TaqMan allelic discrimination in 295 patients with DPN and 312 subjects without DPN. The distribution of these two SNPs and the genetic influence of ICAM-1 gene polymorphisms on the development of DPN were conducted. Results Genotype distributions of both SNPs were coincided with Hardy-Weinberg equilibrium in the two groups. SNP rs1799969 (G/A R241G) in the ICAM-1 gene showed a high GG genotypic frequency at 96.8%(non DPN) and 99.0%(DPN) respectively. SNP rs5498 (A/G K469E) represented AA and AG genotypes. The values were AA 48.7%/AG 39.4%in non DPN group and AA 51.5%/AG 41.7%in DPN group. There were no significant differences in genotypic distributions and allele frequencies of SNPs rs1799969 (G/A R241G) and rs5498 (A/G K469E) between the patients with DPN group and patients without DPN group (P>0.05). The dominant(AA+AG)/GG and additive (GG/AA) models of rs5498 (A/G K469E) were associated with higher risk of DPN (ORadjusted=1.585, 1.575 respectively, P<0.05). To carry A allele was related to the susceptibility of DPN. There was no such association in genetic models of rs1799969 (G/A R241G) and DPN pathogenesis. Conclusion The present study provides evidence that SNP rs5498 E469K (A/G) in the ICAM-1 gene is associated with susceptibility of DPN, and the carrying A allele appears to be a risk of DPN.
9.Value of plasma miR-193a-5p level on diagnosis and treatment evaluation in acute myeloid leukemia
Na ZHANG ; Zhifang XU ; Fanggang REN ; Junxia ZHAO ; Jing XU ; Xiuhua CHEN ; Yanhong TAN ; Jianmei CHANG ; Feng XUE ; Feng GAO ; Jie PAN ; Bin YIN ; Hongwei WANG
Journal of Leukemia & Lymphoma 2016;25(6):349-353
Objective To explore the value of the plasma miR-193a-5p level on diagnosis and monitoring the response to treatment in acute myeloid leukemia (AML). Methods Peripheral blood samples were obtained from AML patients enrolled in hematology department of the Second Hospital of Shanxi Medical University from July 2015 to December 2015, including 30 de novo AML patients, 9 patients in complete remission (CR) and 6 patients in relapse. Peripheral blood samples from 15 healthy people were randomly choosed as the health control group. Plasma miR-193a-5p expression levels were detected by using quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR). Results The plasma miR-193a-5p relative expression level of AML patients group [0.465 6 (0.103 1-5.000 2)] was obviously lower than that of health control group [0.766 1 (0.052 1-3.134 4)] (U= 122, P= 0.018 7). The plasma miR-193a-5p relative expression levels of de novo group and relapse AML group were significantly lower than those of CR group and health control group (P<0.05), and there was no significant difference between the CR group and health control group (U= 56, P= 0.511 9). No significant correlation was found between the plasma miR-193a-5p level and age, gender, blast percentage of the bone marrow, peripheral blood leukocyte count, platelet count, CD34+cells'percentage and so on. Conclusion The decreased plasma miR-193a-5p expression level can be served as a new and noninvasive biomarker for the evaluation of diagnosis and treatment in AML.
10.Role of osteopontin in diet-induced brown gallstone formation in rats.
Chang-Guo JIN ; Feng-Ru JIANG ; Jie ZHANG ; Jun-Ren MA ; Xiao-Feng LING
Chinese Medical Journal 2021;134(9):1093-1100
BACKGROUND:
Although osteopontin (OPN) is expressed in the liver and pigment gallstones of patients with hepatolithiasis, its role in pigment gallstone formation remains unclear. This study aimed to explore the function of OPN in pigment gallstone formation.
METHODS:
Rats were fed a chow diet (CD) or lithogenic diet (LD) for 10 consecutive weeks; blocking tests were then performed using an OPN antibody (OPN-Ab). Incidence of gallstones and levels of several bile components, OPN, tumor necrosis factor alpha (TNF-α), and cholesterol 7 alpha-hydroxylase (CYP7A1) were analyzed. To determine TNF-α expression in hepatic macrophages and both CYP7A1 and bile acid (BA) expression in liver cells, recombinant rat OPN and recombinant rat TNF-α were used to treat rat hepatic macrophages and rat liver cells, respectively. Chi-square or Fisher exact tests were used to analyze qualitative data, Student t-test or one-way analysis of variance were used to analyze qualitative data.
RESULTS:
Incidence of gallstones was higher in LD-fed rats than in CD-fed rats (80% vs. 10%, P < 0.05). BA content significantly decreased in bile (t = -36.08, P < 0.01) and liver tissue (t = -16.16, P < 0.01) of LD-fed rats. Both hepatic OPN protein expression (t = 9.78, P < 0.01) and TNF-α level (t = 8.83, P < 0.01) distinctly increased in the LD group; what's more, CYP7A1 mRNA and protein levels (t = -12.35, P < 0.01) were markedly down-regulated in the LD group. Following OPN-Ab pretreatment, gallstone formation decreased (85% vs. 25%, χ2 = 14.55, P < 0.01), liver TNF-α expression (F = 20.36, P < 0.01) was down-regulated in the LD group, and CYP7A1 expression (F = 17.51, P < 0.01) was up-regulated. Through CD44 and integrin receptors, OPN promoted TNF-α production in macrophage (F = 1041, P < 0.01), which suppressed CYP7A1 expression (F = 48.08, P < 0.01) and reduced liver BA synthesis (F = 119.4, P < 0.01).
CONCLUSIONS
We provide novel evidence of OPN involvement in pigmented gallstone pathogenesis in rats.
Animals
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Diet/adverse effects*
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Gallstones/etiology*
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Lithiasis
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Liver
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Liver Diseases
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Osteopontin/genetics*
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Rats