1.Expression and clinical significance of long chain non-coding RNA LOC285194 in human breast cancer tissue
Qiuxia HUANG ; Gang CHEN ; Zhenbo FENG ; Kanglai WEI ; Hao CHEN
Chongqing Medicine 2017;46(9):1223-1225
Objective To investigate the expression of long chain non-coding(lnc) RNA LOC285194 in breast cancer tissue and paracancerous tissue and its clinical significance.Methods Forty-two samples of paraffin embedded breast cancer tissue and 16 samples of paraffin embedded paracancerous tissue were selected.The expression of lncRNA LOC285194 in these tissue were detected by using quantitative real-time polymerase chain reaction(PCR).Then its correlation with clinicopathological features was analyzed.Results The expression level of lncRNA LOC285194 in breast cancer tissue was significantly lower that in the paracancerous tissue (P<0.01);the level of lncRNA LOC285194 in human epidermal growth factor receptor-2(HER2)overexpression tissues was up-regulated compared with HER2 negative breast cancer tissue(P =0.013),there was a positive correlation between them(r=0.385,P=0.012).Conclusion lncRNA LOC285194 may play the role of cancer suppressor gene and may be involved in the generation of breast cancer by HER2 association,which may become a target gene of breast cancer treatment.
2.Analysis on the protective effect of somatostatin on the pancreatic blood flow and function on the patients with acutepancreatitis
Lian YANG ; Wei FENG ; Zhenbo ZHANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):54-56
Objective To investigate the effect of somatostatin on pancreatic blood flow and pancreatic function on the patients with acute pancreatitis.Methods 120 patients with acute pancreatitis from March 2015 to March 2017 were collected, and were randomly divided into the observation group and the control group.The control group were given routine treatment, at the basis of this, the observation group were given somatostatin.octreotide 0.6 mg was dripped into intravenous continuously, and was reducted to 0.3 mg, continuous treatment for 7 d.The changes of blood flow and the curative effect of pancreas were compared between the two groups before and after treatment.Results The total effective rate was 96.67%(58/60)in the treatment group and 80.00%(48/60)in the control group.The total effective rate in the observation group was significantly higher than that in the control group, the difference was statistically significant (P<0.05).There was no significant difference in blood flow(BF), blood volume(BV)and capillary surface permeability(PS)between the two groups before treatment.1 and 7 days after treatment, BF, BV in the observation group were higher than those in the control group, the levels of PS were significantly lower than that in the control group, the differences were statistically significant(P<0.05).Before treatment, the differences of(CP), insulin(INS), glucagon(GLU), serum lipase(LIP), amylase(AMY)and trypsinogen-2(TPS)were measured in the two groups were not statistically significant.1 and 7 days after treatment, CP and INS in the observation group were significantly higher than those in the control group, and GLU, LIP, AMY and TPS-2 were significantly lower than those in the control group, the differences between the two groups was statistically significant (P<0.05).Conclusion It has a protective effect on pancreatic blood flow and function which somatostatin was used in the treatment of the patients with acute pancreatitis, it can improve the overall state of pancreas, and has significant therapeutic effect.
4.Expression of transcription factor Sp3 in hepatocellular carcinoma
Weijia MO ; Jia LI ; Huiping LU ; Zhenbo FENG
Chongqing Medicine 2016;(3):356-361
Objective To research the expression of Sp3 andβ‐Catenin in HCC and study the assessable factors of them for prognosis in patients with hepatocellular carcinoma .Methods Western blot and RT‐PCR methods were used to detect the expres‐sion of Sp3 andβ‐Catenin in HCC and the liver tissue beside tumor among 49 cases .We analyzed the difference of these two indexes expressed in HCC and the liver tissue beside tumor .Then we detected the correlation between these two indexes and the character of clinic pathology ,and researched the correlation between Sp3 and the prognosis of HCC .Results The high expression rate of Sp3 in HCC was higher than that of liver tissue beside tumor(P<0 .05) according to Western blot and RT‐PCR ,the same toβ‐Catenin (P<0 .05) .Expression of Sp3 andβ‐Catenin were both related with size of tumor and degree of differentiation .Positive correlation existed between these two indexes according to Western blot method(r=0 .681 ,P=0 .000) and RT‐PCR method(r=0 .641 ,P=0 .000) .The prognosis of cases with high expression of Sp3 was poorer than the low expression cases(P<0 .05) .Conclusion Sp3 plays a promoter role in occurrence of HCC ,which is correlated with the grade malignancy of HCC .Sp3 might participated in occur‐rence and development of HCC via the Wnt pathway .
5.Follow-up value of the detection of thyroglobulin and whole body scan by 131I for thyroid cancer after treatment by 131I
Yiling GUO ; Yingnan ZHANG ; Zuowei CHEN ; Cheng FENG ; Zhenbo XIN
Chinese Journal of Primary Medicine and Pharmacy 2013;20(9):1281-1283
Objective To explore the value of follow-up of serum TSH stimulating thyroglobulin (Tg) test and 131I whole body scan(WBS) in patients with differentiated thyroid cancer(DTC) who were treated by 131I.Methods By SPSS software,Kappa test was performed between results of serum Tg,TgAb test and WBS for diagnosis of persistent/recurrent DTC.Results Consistency test of TSH stimulating Tg,TgAb and 131I WBS for diagnostic persistent/recurrent or metastasis of DTC:kappa value =0.587,SE =0.076,P < 0.01.Although the results showed that two measurements appeared definite consistency,it is dissatisfactory.Conclusion Serum TSH stimulating Tg test and 131I whole body scan(WBS) are important follow-up tools for patients with DTC.Because of Tg interfering it is necessary to performed TgAb test simultaneously,when Tg test was performed.Especially 131I WBS do is not absent because false negative would be able to appeared in single serum TSH stimulating Tg and TgAb test.
6.The optimal cryopreservation liquid of the stable transfected cell line named hepatic carcinoma HepG 2 Transfected by Lintivirus
Jia LI ; Huiping LU ; Zhenbo FENG ; Weijia MO
Chongqing Medicine 2013;(28):3393-3394,3397
Objective To investigate the optimal cryopreservation liquid of the stable transfected cell line named hepatic carcino-ma HepG2 transfected by lentivirus .Methods Glycerol and DMSO as cryopreservation liguid ,The HepG2 transfected by lentivirus and HepG2 cells were both cryopreserved with four various proportion of cryopreservation liquid .After thawing ,the survival rate of the two cells were observed by inverted contrast microscope and the viability and proliferation were detected with MTT assay .Re-sults Using glycerol as cryoprotectant liquid ,the survival rate of the HepG2 cells transfected by lentivirus was obviously higher than other 3 groups when the proportion of the cryopreservation liquid(DMEM ∶FBS∶Glycerol)was 0∶9∶1(P=0 .001) ,where-as there was no significant difference among the groups of HepG2 cells with various proportion of cryopreservation liquid (P=0 .293) .Using DMSO as cryoprotectant liquid ,the survival rate of the cells transfected by lentivirus was 0% ,whereas the survival rate of the HepG2 cells was higher than 60% ,and there was no significant difference between groups of various proportion of cryo-preservation liquid(P=0 .487) .The MTT assay demonstrated that the higher the serum levels was ,the better proliferation capacity those cells had(P<0 .05) .Conclusion The optimal cryopreservation liquid for the hepatic carcinoma cell line HepG2 transfected by lentivirus is used glycerol as cryoprotectant solution ,and the proportion of cryopreservation solution was 90% FBS + 10%Glycerol .
7.Effect of rocuronium 0.3 mg/kg(ED95)for anesthesia induction on monitoring of recurrent laryngeal nerve in patlents undergoing thyroid surgery
Peng CHEN ; Feng LIANG ; Zhenbo SU ; Longyun LI ; Guoqing ZHAO
Chinese Journal of Anesthesiology 2012;32(5):525-527
Objective To investigate the effect of rocuronium 0.3 mg/kg(ED95)for anesthesia induclion on monitoring of recurrent laryngeal nerve in patients undergoing thyroid surgery.Methods Seventy-five patients,ASA Ⅰ or Ⅱ,aged 20-70 yr,weighing 50-85 kg,scheduled for thyroid surgery,were randomly divided into two groups:rocuronium group(groupⅠ,n=38)and sevoflurane group(group Ⅱ,n =37).Anesthesia was induced with midazolam 2 mg,propofol 2 mg/kg,sulfentanil 0.5 ug/kg.After loss of eyelash reflex,group Ⅰ received rocuronium 0.3 mg/kg(ED95)and was intubated with the electromyographic(EMG)endotracheal tube under glidescope al 2 min after rocuronium administration.Group Ⅱ received sevoflurane inhalation and was endotracheal intubated with EMG tube until end-tidal sevoflurane concentration achieved 4%.Anesthesia was maintained with inhalation of sevoflurane in both groups.SP,DP,and HR were monitored continuously through the surgery.Cooper's score and the success of attempt at endotracheal intubation were recorded.Recurrent laryngeal nerve evoked EMG was recorded by neuromonitoring and the amplitude of EMG responses was recorded at 5 min intervals from 30 min to 70 min of surgery duration.Results SP,DP and HR remained within normal range in both groups.The success rates of endotracheal intubation were 100% in both groups,but the Cooper' s score of group Ⅰ was significantly higher than that of group Ⅱ(P < 0.05).Compared with group Ⅱ,the amplitude of EMG respouses was significantly decreased in group Ⅰ(P < 0.05).However,the EMG response in group Ⅰ was adequate for neuromonitoring of recurrent laryngeal nerve.Conclusion Rocuronium 0.3 mg/kg(ED95)for anesthesia induction can not only provide satisfied endotracheal intubation conditions,but also be adequate for monitoring of recurrent laryngeal nerve in patients undergoing thyroid surgery.
8.Expression of glyoxalase Ⅰ and its effect on cell proliferation and apoptosis in endometrial carcinoma
Long SUI ; Qisang GUO ; Zhenbo ZHANG ; Hongyan JIN ; Yinhua YU ; Youji FENG
Chinese Journal of Obstetrics and Gynecology 2010;45(6):429-433
Objective To examine the expressions of glyoxalase Ⅰ (GLO-Ⅰ ) in endometrial cancer tissues and cell lines and to investigate the roles of GLO-Ⅰ on proliferation and apoptosis in endometrial cancer cells. Methods Immunohistochemistry, western blot and RT-PCR were used to investigate the expressions of GLO-Ⅰ protein and mRNA in endometrial cancer tissues and Ishikawa cell lines ;enzyme activity of GLO-Ⅰ in normal endometrium, endometrial cancer and paraneoplastic tissue samples was detected with spectrophotometer; proliferation and apoptosis of Ishikawa cell before and after RNA interference (RNAi) procedure were detected by the methyl thiazolyl tetrazolium (MTT) and flow cytometry, respectively. Results (1)There were significant differences of GLO-Ⅰ expression between normal endometrium (0/19) and endometrial cancer tissues ( 76%, 22/29 ); these were also significant differences of enzyme activity of GLO-Ⅰ among normal endometrium, paraneoplastic and endometrial cancer tissues( 1.1,0.8 vs 92.3 IU/mg; P <0.01 ). Enzyme activity of GLO-Ⅰ in fresh normal endometrium and paraneoplastic tissues was weak, while that of fresh endometrial cancer tissues was as high as 92. 3 IU/mg in average. (2)The expression of GLO-Ⅰ mRNA in Ishikawa cell transfected with GLO-Ⅰ siRNA was significantly lower than that in negative group (0.25 ± 0.06 vs 0.93 ± 0.10, P < 0.0l ), and the similar results that in the expression of GLO-Ⅰ protein (0.38 ±0.06 vs 0.94 ±0.13, P <0.01 ). (3) Proliferation in Ishikawa cell was significantly inhibited after silencing RNA expression of GLO-Ⅰ ( P = 0.028 ). The apoptosis rate of cells transfected with GLO- Ⅰ siRNA was significantly higher than that of negative control group and blank control group [ ( 6.7 ± 0.8 ) % vs ( 1.2 ± 0.4) %, ( 1.4 ± 0.4 ) %; P < 0.01 ]. Conclusion The expression and enzyme activity of GLO- Ⅰ is significantly increased in endometrial cancer, which could promote abnormal proliferation and inhibit apoptosis in endometrial cancer cells.
9.A clinical study of chromosome translocations in extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue in Chinese patients
Gehong DONG ; Guiqiu WANG ; Liping GONG ; Jinfen WANG ; Xianglan MO ; Honggang LIU ; Lina DONG ; Yingqiong ZHOU ; Xuemei ZHANG ; Zhenbo FENG ; Zifen GAO ; Hongtao YE
Chinese Journal of Internal Medicine 2009;48(3):181-185
Objective To investigate the genetic aberrations in extranodal marginal zone lymphoma of mueosa-associated lymphoid tissue (MALT) lymphomas from different sites of the body in Chinese patients. Methods Two hundred and seventeen paraffin-embedded MALT lymphoma specimens from 11 major sites were studied with interphase fluorescence in situ hybridization (FISH) to detect t(11; 18) (q21;q21)/API2-MALT1, t(1; 14) (p22; q32)/IGH-BCL10, (14; 18) (q32; q21)/IGH-MALT1 and BCL6 gene involved chromosome translocations. Results These translocations were mutually exclusive and detected in 21% (46/217) of the cases, including t(11;18) (q21;q21) API2-MALT1 13% (29/217), t (1;14)(p22 ;q32) IGH-BCLIO in 1% (3/217), t(14;18) (q32;q21) IGH-MALT1 1% (2/217), BCL6 involved translocation in 2% (4/217) and IGH-unknown translocation partner in 4% (8/217). t(11; 18) (q21;q21)API2-MALT1 was found with the highest frequency in MALT lymphoma from lungs (47% , 8/17) and small intestine (29%, 4/14), followed by salivary gland (17%, 1/6), stomach (14%, 12/84) and ocular adnexae (6% , 4/68). t(1 ;14) (p22;q32) was only detected in lungs (12%, 2/17) and stomach (1%, 1/84). t(14;18) (q32;q21) was mainly detected in lungs (6%, 1/17) and ocular adnexae (2%, 1/68). BCL6 gene involved translocation was detected in salivary gland (17% , 1/6) and stomach (4%, 3/84). Conclusions It is demonstrated that the four translocatidns occur with markedly variable frequencies in MALT lymphoma of different sites in Chinese patients. The distributions of these chromosome translocations in Chinese patients are slightly different from those reported in western patients.
10.Prevalence of Avian Influenza Virus Receptor in Human Respiratory Tract
Zengfeng ZHANG ; Xiaohui FAN ; Kangsheng LI ; Kai HUANG ; Dianzhong LUO ; Zhenbo FENG ; Minyi WEI ; Yi GUAN ; Honglin CHEN ; Jinxia ZHANG
Progress in Biochemistry and Biophysics 2008;35(12):1387-1393
SAαt2,6 and SAα2,3 linked sialic acid molecules on epithelial cell membrane served as receptors for influenza virus, which axe specifically recognized by human and avian influenza viruses, respectively. The distribution of these two species of sialic acids in human respiratory tract from different anatomical sites and different age groups was investigated. The results showed that SAα2,3Gal species was prevalent in respiratory bronchiole and lung alveolar epithelium, but was infiequent in trachea, bronchus and bronchiole. On the contrary, the SAα2,6Gal species was more common in the trachea and bronchus and to a lesser degree in the alveolar epithelium. When compared the expression levels of SAα2,6Gal and α2,3Gal in the respiratory tract among different age groups, no significant difference was found. In the ex vivo H5N1 virus infection study, alveolus epithelium were found to be more susceptible to avian influenza than trachea and bronchus epithelial cells. These results suggest that the human respiratory tract, to some extent, is permissive for avian influenza viruses. The currently-observed limited human to human transmission of H5N1 virus may be associated with the different abundance of SAα2,3Gal linkages in human upper respiratory tract among individuals.

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