3.Long-term follow-up for laparoscopic anterior 180° partial fundoplication for gastroesophageal refulx disease
Zhen CHEN ; Mingfang QIN ; Hongzhi ZHAO
Chinese Journal of Digestive Endoscopy 2014;31(4):194-197
Objective To evaluate long-term follow-up for laparoscopic anterior 180° partial fundoplication for gastroesophageal refulx disease (GERD).Methods A total of 48 patients had undergone a laparoscopic anterior 180° partial fundoplication from July 2004 to October 2007.Patients were followed up at 3 months,12 months,3 years,5 years by using a structured questionnaire via phone or e-mail which evaluated symptoms of reflux,dysphagia,side-effects,and overall satisfaction with the clinical outcome.Results Follow-up data were collected from 43 patients,ranging from 60 to 98 months.Postoperative heartburn significantly improved in 37 patients.Normal belching was preserved in 40 patients,and 38 patients were able to eat normally.Thirty nine (90.7%) patients reported a good or excellent result (minimal or no symptoms) at the late follow-up.Two patients underwent laparoscopic anterior 180° partial fundoplication again due to acid reflux at the 12th and 38th month respectively.Conclusion At minimum 5 years followup,laparoscopic anterior 180° partial fundoplication for GERD is effective and lasting,and most patients are satisfied with the outcome.
5.Effects and mechanism of the circadian clock gene Per1 on the proliferation, apoptosis, cycle, and tumorigenicity in vivo of human oral squamous cell carcinoma.
Xiaojuan FU ; Kai YANG ; Hanxue LI ; Qin ZHAO ; Dan CHEN
West China Journal of Stomatology 2016;34(3):255-261
OBJECTIVETo determine the regulatory effects of the circadian clock gene Per1 on cell cycle-related genes and its influence on the proliferation, apoptosis, cycle, and tumorigenicity in vivo of human oral squamous cell carcinoma SCC15 cells.
METHODSThree groups of the short hairpin RNA (shRNA) of lentivirus recombinant plasmids were designed against the RNA of Per1 and then transfected to the SCC15 cells. The optimum interference group was screened through Western blot and quantitative real-time PCR (qRT-PCR) and assigned as the experimental group. The transfected lentivirus plasmid without an interference effect on any gene was set as the control group (Control-shRNA). Untreated SCC15 cells were set as the blank group. The mRNA expressions of cell cycle-related genes, namely, Per1, p53, Cyclin D1, Cyclin E, Cyclin A2, Cyclin B1, CDK1, CDK2, CDK4, CDK6, p16, p21, Wee1, cdc25, E2F, and Rbl1 in each group were detected through qRT-PCR. The cell proliferation, apoptosis, and cell cycle distribution in each group were evaluated through flow cytometry. The cells of the experimental group and the blank group were subcutaneously inoculated in nude mice to observe tumorigenesis.
RESULTSThree groups of Per1-shRNA lentivirus plasmids were constructed successfully. Among the groups, the Per1-shRNA- I group exhibited the highest interference effect, as indicated by qRT-PCR and Western blot analysis. As such, this group was set as the experimental group. The mRNA expression levels of CyclinD1, CyclinE, CyclinB1, CDK1, and Wee1 gene in the Per1-shRNA-I group were significantly higher than those in the Control-shRNA group and the SCC15 group (P < 0.05). By contrast, the mRNA expression levels of p53, Cyclin A2, p16, p21, and cdc25 in the Per1-shRNA-I group were significantly lower than those in the Control-shRNA group and the SCC15 group (P < 0.05). The mRNA expression levels of each gene between the Control-sLRNA group and the SCC15 group did not significantly differ (P > 0.05). The mRNA expression levels of CDK2, CDK4, CDK6, E2F, and Rb1 did not significantly differed in the three groups (P > 0.05). The proliferation index of the Perl-shRNA-I group was significantly higher than those of the Control-shRNA group and the SCC15 group (P < 0.05). The apoptosis index of the Per1-shRNA-I group was significantly lower than those of the Control-shRNA group and the SCC15 group (P < 0.05). The number of S-phase cells in the Per1-shRNA-I group was significantly lower than those of S-phase cells in the Control-shRNA group and the SCC15 group (P < 0.05). The number of G2/M-phase cells in the Per1-shRNA-I group was significantly higher than those of G2/M-phase cells in the Control-shRNA group and the SCC15 group (P < 0.05). Conversely, the proliferation index, apoptotic index, and cell cycle distribution of the cells in the Control-shRNA group did not significantly differ from those of the SCC15 group (P > 0.05). The tumorigenic ability in vivo was significantly enhanced in the Per1-shRNA-I group (P < 0.05).
CONCLUSIONPer1 is an important tumor suppressor gene. Per1 can regulate a large number of downstream cell cycle-related genes. The alteration of its expression can affect cell cycle progression, proliferation, apoptosis imbalance, and tumorigenic ability in vivo. Further studies on Per1 may elucidate cancer development and provide novel effective molecular targets for cancer treatment.
Animals ; Apoptosis ; Carcinoma, Squamous Cell ; Cell Cycle ; Cell Line, Tumor ; Cell Proliferation ; Circadian Clocks ; genetics ; Cyclin D1 ; Humans ; Mice ; Mice, Nude ; Mouth Neoplasms ; Period Circadian Proteins ; genetics ; Plasmids ; RNA, Small Interfering ; Real-Time Polymerase Chain Reaction ; Transfection
8.Association between Ephb4 gene polymorphism and non-small cell lung cancer.
Li-qin SHEN ; Xiao-chen WANG ; Jun ZHAO
Chinese Journal of Oncology 2009;31(10):778-779
Adult
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Aged
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Aged, 80 and over
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Carcinoma, Non-Small-Cell Lung
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genetics
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Female
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Genetic Predisposition to Disease
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Humans
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Lung Neoplasms
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genetics
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Male
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Middle Aged
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Polymerase Chain Reaction
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Polymorphism, Restriction Fragment Length
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Polymorphism, Single Nucleotide
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Receptor, EphB4
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genetics
9.Application of Data Mining on Selection and Specificity of Acupoints
Yulan REN ; Ling ZHAO ; Qin CHEN ; Fanrong LIANG
Journal of Traditional Chinese Medicine 1993;0(01):-
Objective To explore the feasibility of application of data mining in the study on selection and specificity of acupoints.Methods The ancient and modern prescription data of acupuncture treating migraine and functional dyspepsia were regarded as sample data. Database techniques and natural language processing techniques were introduced to structurize and standardize acupuncture prescription data. Based on association rule data mining, the self-developed Acupuncture Data Mining System was applied to discover the rules of selection of acupoints.Results There were collected 634 and 386 prescriptions of acupuncture treating migraine and functional dyspepsia respectively. In the prescriptions treating migraine, acupoints distributed on Gallbladder meridian and Triple Energizer meridian accounted for 40.5% and 50.6% in ancient time and modern time respectively, and specific points accounted for 84.0% and 82.8% in ancient time and modern time respectively. In the prescriptions treating functional dyspepsia, acupoints distributed on Conception vessel, Bladder meridian and Stomach meridian accounted for 62.1% and 75.7% in ancient time and modern time respectively, and specific points accounted for 70.0% and 83.3% in ancient time and modern time respectively.Conclusion The result of data mining proves that the rule of selection of acupoints is "selecting acupoints along the affected meridian" and "mostly selecting specific points", and the specificity of acupoints is "where the meridian goes, where the qi accumulates".
10.Breast conserving surgery for early breast cancer: a report of 86 cases
Xianju QIN ; Houshun XU ; Wentan CHEN ; Yongkang YANG ; Dafang ZHAO
Chinese Journal of General Surgery 2001;0(08):-
ObjectiveTo evaluate the breast-conserving surgery for early breast cancer.MethodFrom 1993 to 2000, 86 female cases of stage ⅠⅡa breast cancer received breast conserving comprehensive therapy. Clinical data were analyzed retrospectively. ResultsThe 5 year survival rate of this group was 96.5% and the 5 year recurrence rate was 5.2%.The postoperative contour of the breast was satisfactory.ConclusionBreast-conserving surgery is safe and effective therapy for early breast cancer, when strict indication and necessary safe margin of resection is obeyed by. Postoperative radiotherapy and chemotherapy should be properly arranged and the patients should be closely followed-up.