1.Complete Sequencing and Analysis of mtDNA in Phlaeoba albonema Zheng
Hongwen SHI ; Fangmei DING ; Yuan HUANG
Chinese Journal of Biochemistry and Molecular Biology 2008;24(7):604-611
The complete mitochondrial genome sequence of Phlaeoba albonema Zheng Was determined by using L-PCR and conserved primers walking sequencing.The obtained genome sequence is 15657 bp in size.containing 13 protein-coding genes,2 ribosomal RNA and 22 transfer RNA genes.All the 37 genes are conserved in the same orientations as observed in Locusta migratoria.11202 bp of the mtDNA are coding for proteins,1486 bp for tRNAs,1312 bp for rRNA large subunit(1rRNA),and 844 bp for rRNA small subunit(srRNA).The A+T-rich region is 728 bp in size.The genes overlapping sequences are 41 bp in total and are spreading over 9 locations(1-8 bp at each site).A total of 126 bp intergenic spacer sequences are scattered in 21 regions at the size of 1 to 20 bp,where the largest 20 bp region iS located between the tRNALys and ATP8 genes.The predicted secondary structures of both srRNA and lrRNA were compared with that of Ruspolia dubia,and the patterns of base pairs in tRNA anticodon stem and A/T,C/G bias of protein-coding genes in different strands were discussed.
2.Study of Chlamydia trachomatis infection on cervical secretion of women with early pregnancy and secondary sterility
Xiaobo SHI ; Fengying LIU ; Hongwen ZHANG
Journal of Central South University(Medical Sciences) 2001;26(2):169-170
Objective This study was to investigate the Chlamydia trachomatis (CT) infection rate in cervical secretion of early pregnant and secondary sterility women. Method CT-DNA in the cervical secretion of the early pregnant, the secondary sterility, and the control women was detected with polymerase chain reaction (PCR). Results The infection rates of CT in the early pregnant and secondary sterility women (14.28% and 13.33%)were higher than in the control women (3.33%, P<0.05),and there was no significant difference between the former two groups (P>0.05). Conclusion There are higher infection rates in the early pregnant and secondary sterility women.Detecting CT and treating in the perinatal period are needed in the early pregnant women who want to be pregnant again.
3.Effects of tamoxifen on proliferation and ER expression of human hepatocellular carcinoma cells
Wenkun BAI ; Wenqi WANG ; Changwen SHI ; Hongwen WU
Chinese Journal of Current Advances in General Surgery 2004;0(05):-
Objective:To study the effects of tamoxifen on proliferation and ER expression of human hepatocellular carcinoma cells.Methods:HepG2 cells were treated with tamoxifen at different concentration and different action time.MTT was used to determine the suppression rate of human hepatocellular carcinoma cell.The effects of tamoxifen on human hepatocellular carcinoma cell ER performance were observed by immunohistochemistry.Results:Tamoxifen inhibited the proliferation of human hepatocellular carcinoma cells and suppressed human hepatocellular carcinoma cell ER performence.Conclusions:Tamoxifen may suppress human hepatocellular carcinoma cell proliferation ER performance.
4.Relationship between serum matrix metalloproteinase-9 level and coronary heart disease in type 2 diabetic patients
Xi HE ; Shujing XU ; Lixin SHI ; Tianhe YANG ; Hongwen TAN
Chinese Journal of Endocrinology and Metabolism 2011;27(10):813-815
Twenty-seven cases of simple type 2 diabetes mellitus,30 cases of coronary heart disease,and 32 cases of type 2 diabetes with coronary heart disease were enrolled in this study according to the results of coronary angiography.Meanwhile,32 healthy subjects were taken as a control group.The serum matrix metalloproteinase-9 (MMP-9) and other clinical and laboratory parameters were determined.The results showed that serum MMP-9 may play a minor role in the progression of coronary heart disease in type 2 diabetic patients.
5.Effects of RNA Interfering of MBP-1 on Proliferation of Saos-2 Cell Line
Xinhe SHI ; Zhe GENG ; Xingchen SHI ; Kejun MA ; Hongwen ZHU ; Wen REN ; Yali ZHOU
Journal of China Medical University 2016;45(7):604-609
Objective To investigate the effects of c?myc promoter binding protein 1(MBP?1)gene on the proliferation of human Saos?2 osteo?sarcoma cells in vitro. Methods Saos?2 cells were divided into three groups:blank control group(untransfected cells),negative group(cells transfected with missense sequence)and experimental group(cells transfected with MBP?1 shRNA). Two MBP?1 shRNA sequences and one neg?ative control shRNA sequence were designed ,synthesized and cloned into pSIREN?retroQ plasma. Then the recombinant plasmids were construct?ed and transfected into human Saos?2 osteosarcoma cells by Lipofectamine 2000. The expressions of MBP?1 mRNA and protein in Saos?2 cells were detected by real?time PCR and Western blot ,respectively. The effects of altered expression of MBP?1 on cell proliferation were measured by CCK?8 cell proliferation assay. The expressions of cyclin D1 and cyclin E in Saos?2 were determined by Western blot. Results PCR and sequenc?ing results indicated that the recombinant plasmids pSIREN?retroQ was constructed. The relative expression level of MBP?1 mRNA in the MBP?1 siRNA transfection group was significantly decreased than that in blank control group(P<0.05). Compared with the blank control group,the ex?pression levels of MBP?1 protein in the experimental group also significantly decreased. The proliferation abilities of Saos?2 cells at 48,72,and 96 hours after MBP?1 siRNA transfection were significantly increased than those in the blank control group(P<0.05). Compared with the blank con?trol group,the expression levels of cyclin D1 and cyclin E protein in the experimental group also significantly increased(P<0.05). Conclusion Knockdown of the expression of MBP?1 gene promotes the proliferation of human Saos?2 osteosarcoma cells. MBP?1 gene may become the new tar?get of gene therapy for osteosarcoma.
6.Impact of remature clopidogrel cessation and intra-operative tranexamic acid on bleeding and transfusion outcomes in on-pump CABG and their interaction
Jia SHI ; Hongwen JI ; Guyan WANG ; Su YUAN ; Aixia HE ; Lihuan LI
Chinese Journal of Thoracic and Cardiovascular Surgery 2013;(2):87-90
Objective To evaluate premature clopidogrel cessation,intraoperative tranexamic acid and their interaction on bleeding and transfusion outcomes in on-pump CABG patients.Methods The current study is a prospective and randomized trial with 2 × 2 factorial design.The first factor is preoperative clopidogrel with 2 levels,clopidogrel ingestion within 7 days preoperatively (group E) and nave to clopidogrel (group B).The second level is antifibrinolytic therapy with 2 level,tranexamic acid (group T) and placebo (group P).A total of 333 patients receiving selective on-pump CABG were recruited.The tranexamic acid regimen was a bolus of 10 mg · kg-1 followed by a maintenance of 10 mg · kg 1 · h-1 throughout the surgery.Results Baseline characteristics were fairly balanced among the groups.Tranexamic acid significantly reduced postoperative blood loss.major bleeding,the volume of erythrocyte and plasma transfused,the exposure of erythrocyte,plasma and any allogeneic products (ET vs EP,P < 0.01 ; BT vs BP,P < 0.01).Clopidogrel within 7 days preoperatively significantly increased blood loss (EP vs BP,P<0.05),major bleeding,the volume of erythrocyte (EP vs BP,P<0.01) and the exposure of erythrocyte and plasma (EP vs BP,P < 0.05) and any allogeneic products (EP vs BP,P < 0.01).Under the protection of tranexamic acid,the bleeding and transfusion outcomes were comparable between the patients with premature clopidogrel cessation and those nave to clopidogrel (ET vs BP,P >0.05).Perioperative mortality,morbidity and the incidence of adverse events were comparable among the groups except for IABP.Conclusion Comparing with nave to clopidogrel,premature cessation within 7 days preoperatively deteriorated bleeding and transfusion outcomes in on-pump CABG patients.Intraoperative tianexamie acid could reduce the risk.
7.Umbilical cord blood mononuclear cell transplantation for treatment of decompensated cirrhosis
Yuqin XU ; Wenming SHI ; Jinshun LI ; Jianguo XU ; Hongwen LI ; Xiang HU
Chinese Journal of Tissue Engineering Research 2013;(45):7975-7980
BACKGROUND:Orthotopic liver transplantation is the most effective therapy for the treatment of end-stage liver diseases, but the lack of donor source, immune rejection, and repeated infections limit its application. Stem celltransplantation technology provides a new idea for the treatment of end-stage liver diseases. A variety of methods have been confirmed to successful y induce umbilical cord blood mesenchymal stem cells converted into liver cells in vitro.
OBJECTIVE:To explore the clinical efficacy and feasibility of human umbilical cord blood mononuclear cells transplantation in the treatment of decompensated cirrhosis.
METHODS:Twenty-three patients with decompensated cirrhosis received al ogeneic human umbilical cord blood mononuclear celltransplantation. Serum alanine aminotransferase, albumin, cholinesterase, total bilirubin and prothrombin time were detected at post-transplantation weeks 2, 4, 8 and 24. Improvement in clinical signs and symptoms as wel as adverse reactions was observed.
RESULTS AND CONCLUSION:Liver function had no changes at 2 weeks after human umbilical cord blood mononuclear celltransplantation (P>0.05). At 4 weeks after celltransplantation, serum alanine aminotransferase was improved significantly (P<0.05), but the other indexes stil had no changes. Until 12 weeks after celltransplantation, there were significant improvements in al the liver function indicators (P<0.05) and the liver stiffness (P<0.05). By the end of 24 weeks, al the test results were improved significantly (P<0.01). Clinical symptoms were al eviated, including fatigue improvement in 20 cases (87%), improved appetite in 21 cases (91%), and relieved ascites in 19 cases (83%). No severe adverse reactions were found during the transplantation and 24-week fol ow-up. These findings suggest that human umbilical cord blood mononuclear cells transplantation is effective and safe for the treatment of decompensated cirrhosis, which can be considered as a clinical therapy for patients with advanced cirrhosis.
8.Clinical diagnosis and surgical management of ureteral obstruction after renal transplantation
Qing ZHANG ; Zexuan SU ; Jie CHEN ; Hongwen DING ; Yifan LIU ; Xinghua DOU ; Liping SHI
Chinese Journal of Organ Transplantation 2013;34(9):542-544
Objective To investigate the diagnosis and surgical management of ureteral obstruction after renal transplantation.Method A respective study was performed on 15 cases of ureteral obstruction who received renal allografts.All of the cases were confirmed,including 5 cases of stenosis of ureterovesical junction,4 cases of stenosis of distal ureter,2 cases of blood clot blockage,2 cases of edema due to perforation of distal ureter,1 case of ureteral calculi,and 1 case of extrinsic compression of hematoma.All 14 patients underwent open surgical management to reestablish ureter with D-J catheter as stent for 12-16 weeks.One patient was subjected to percutaneous nephrostomy followed by percutaneous ureteroscopy,the obstructed site was identified at ureterovesical junction and antegrade balloon dilation and D-J stent in ureter were performed subsequently.Result Fifteen patients were diagnosed as ureteral obstruction by colour Doppler ultrasound and MRU.All of the patients were resolved the obstructions after surgical managements and the renal function got improved.No reobstruction occured during one year follow-up period.Conclusion Colour Doppler ultrasound and MRU can definitely be used to diagnose ureteral obstruction after renal transplantation.Early diagnosis and surgical management are very important.Open surgical management of the obstructed ureter is an effective method.Antigrade balloon dilation is a therapeutic approach to treat ureteral obstruction.
9.Associated factors and trends for prehospital delay in elderly patients with acute ischemic stroke
Li ZHANG ; Junsu YANG ; Hongwen ZHU ; Ruiqiong BA ; Yuan SHI ; Xiang MA
International Journal of Cerebrovascular Diseases 2018;26(5):331-338
Objective To investigate the associated factors and trends of prehospital delay in elderly patients with acute ischemic stroke (AIS).Methods Elderly patients with AIS admitted to the First People's Hospital of Qujing from 2007 to 2017 were enrolled retrospectively.The data of patients was collected from the medical records.Onset-to-door time > 2 h was defined as prehospital delay.The demographic and baseline data were compared between the delay group and the non-delay group.Multivariate logistic regression analysis was used to determine the associated factors for prehospital delay.In addition,the trends of prehospital delay time at the different stages of the study were also analyzed.Results A total of 1 566 patients with AIS aged ≥65 years were enrolled.Their mean age was 75.61 ±6.06 years.The mean time of prehospital delay was 10.83 ± 7.47 h (median time 8.27 h).Multivariatelogistic regression analysis showed that advanced age (odds ratio [OR] 1.271,95% confidence interval [CI] 1.029-2.896;P =0.039),nocturnal onset (OR 1.413,95% CI 1.067-3.859;P=0.013),and atypical symptom onset (OR 2.345,95% CI 1.184-8.126;P=0.029) were independently positively correlated with prehospital delay,while the emergency medical service transport (OR 0.743,95% CI 0.261-0.998;P =0.010),having medical insurance (OR 0.219,95% CI 0.015-0.799;P =0.042),and having a bystander at the time of onset (OR 0.618,95% CI 0.149-0.814;P=0.003) were independently negatively correlated with prehospital delay.At the different stages of the study,January 2007 to October 2010,November 2010 to April 2015,and May 2015 to December 2017,the mean time of prehospital delay was 12.59 ± 7.06 h,10.57 ±7.78 h,and 8.47 ±7.07 h,respectively.They showed a decrease trend,but the difference was not statistically significant.Conclusion Advanced age,nocturnal onset,and atypical symptom onset were the independent risk factors for prehospital delay,while emergency medical service transport,having medical insurance,and having a bystander at the time of onset were the independent protective factors for prehospital delay.The delay time of the elderly patients with AIS is declining year by year,but the improvement is not significant.The delay in seeking timely medical intervention remains an important public health problem.
10.Retrospective analysis of primary hyperparathyroidism combined with papillary thyroid carcinoma
Dunmin SHE ; Zhengqin YE ; Hongwen ZHOU ; Baomin SHI ; Xianghua YI ; Keqin ZHANG ; Ying XUE
Chinese Journal of Postgraduates of Medicine 2018;41(11):981-985
Objective To evaluate the differences of the malignant rate of thyroid nodules between primary hyperparathyroidism (PHPT) patients and health examination population, and analyze the clinical characteristics of PHPT combined with papillary thyroid carcinoma (PTC). Methods The clinical data of 158 PHPT patients who had underwent parathyroidectomy and 468 thyroid nodule patients who had underwent fine-needle aspiration (FNA) from 2009 to 2014 were retrospectively analyzed, and the detection rate of PTC in patients with thyroid nodule was recorded. Results Of the 158 patients with PHPT, 61 patients had thyroid nodules, the incidence of PHPT with thyroid nodule was 38.6% (61/158), and postoperative pathologically proved PTC was in 12 cases (19.7%). Of the 468 thyroid nodule patients who had underwent FNA, postoperative pathologically proved PTC was in 19 patients (4.1% ). The malignant rate of thyroid nodules in PHPT patients was significantly higher than that in health examination population (P<0.01). The adjusted serum calcium in patients with PHPT combined with PCT was significantly lower than that in patients with PHPT combined with benign thyroid nodules and patients with PHPT without thyroid nodules: (2.63 ± 0.26) mmol/L vs. (2.92 ± 0.32) and (2.93 ± 0.47) mmol/L, and there was statistical difference (P<0.05). Conclusions The malignant rate of thyroid nodules in PHPT patients is significantly higher than that in patients from health examination population, which suggests that PHPT might be a risk factor for the malignancy of thyroid nodules. A lower level of serum calcium may predict the existence of PCT in PHPT patients with thyroid nodules.