1. Efficacy and safety of triplecombination therapy with paclitaxel, cisplatin and TS-1 in patients with advanced gastric cancer
Tumor 2012;32(6):453-457
Objective: To evaluate the efficacy and safety of triplecombination therapy with paclitaxel, cisplatin (intra-abdominal administration) and TS-1 in patients with advanced gastric cancer. Methods: Fifty eligible inpatients with advanced gastric cancer were recruited between January 2008 and January 2011 and treated with triple-combination therapy with paclitaxel (intravenous administration), cisplatin (intra-abdominal administration) and TS-1 (oral administration). The short-term response and adverse reactions were evaluated. The average follow-up time was 11.4 months. The PFS (progression-free survival) and OS (overall survival) were calculated. Results: Of 50 patients, 5 patients achieved complete response and 23 patients achieved partial response, and the objective response rate was 56%. The median PFS was 6.0 months (95% confidence interval: 3.4-8.6 months) and the median OS was 13.0 months (95% confidence interval: 7.9-18.1 months). The major adverse reactions were gastrointestinal reactions, hematologic toxicities and fatigue. Most of these adverse reactions were grades II Grades II adverse reactions were observed in three patients (one had serious vomiting, two had liver dysfunction). The bowel obstruction was relieved after two cycles of chemotherapy in 2 patients who had incomplete bowel obstruction before chemotherapy, and the chemotherapy-associated bowel obstruction after two cycles of chemotherapy occurred in another patient who had no bowel obstruction before chemotherapy. Conclusion: The triple combination therapy with paclitaxel, cisplatin and TS-1 demonstrates benefits in short-term response and the survival for patients with advanced gastric cancer, and it is also well-tolerated. © 2012 by Tumor.
2.The current situation and research advances of biobank
Zhejun DONG ; Fei XIAO ; Jian GUO
Chinese Journal of Laboratory Medicine 2013;(2):130-135
Biobank is a biorepository which organized for collecting and storing human biospecimen as well as associated information for research uses.Biobank is the fundamental platform which translates the basic research result into clinical practice.It also plays an important role in disease diagnosis,new drug development,disease-related genetic research and epidemiological studies.The rise of translational medicine promotes the construction and development of the biobank.This review highlights the necessity to establish biobank,and focuses on the recent advances of the modem type of biobank,quality control of biospecimens,construction of biobank,best practices and guideline applied for biobank.This review also provides information for improvement of biobank.
3.Different scoring systems to evaluate the prognosis of Fournier's gangrene: A comparative study.
Xiao-dong ZHU ; Fei DING ; Guo-dong WANG ; Qiang SHAO
National Journal of Andrology 2015;21(8):720-723
OBJECTIVETo sum up the experience in diagnosis and treatment of Fournier's gangrene and find an optimal evaluation tool for its prognosis by comparing currently used prognostic scoring systems.
METHODSWe retrospectively analyzed 16 cases of Fournier's gangrene diagnosed and surgically treated in our hospital between 2004 and 2012. Using Fournier's Gangrene Severity Index (FGSI), Uludag Fournier's Gangrene Severity Index (UFGSI), Age-Adjusted Charlson Comorbidity Index (ACCI), and Surgical Apgar Score (sAPGAR) , we obtained the prognostic scores of the patients and made comparisons among different scoring systems.
RESULTSFGSI, UFGSI, ACCI, and sAPGAR were all clinically used scoring systems. Statistically significant differences were found in the scores of ACCI and UFGSI but not in those of FGSI and sAPGAR between the death and survival groups, with the maximum area under the ROC curve and minimum standard error for the ACCI score.
CONCLUSIONBoth ACCI and UFGSI are useful for evaluating the prognosis of Fournier's gangrene. However, ACCI is even better for its higher sensitivity and specificity and easier clinical collection.
Age Factors ; Aged ; Fournier Gangrene ; diagnosis ; mortality ; surgery ; Humans ; Prognosis ; Retrospective Studies ; Sensitivity and Specificity ; Severity of Illness Index
7.Effect of Dibenzazepines Injection on Pulmonary Hypertension in Rats
Qingping XIAO ; Jianwen LIU ; Minhong ZHANG ; Fuhuan LI ; Dong GUO
Herald of Medicine 2015;34(12):1576-1579
Objective To investigate the effect and mechanism of dibenzazepines ( DBZ ) injection on pulmonary hypertension in rat. Methods Rat models of pulmonary hypertension were established, and 30 male rats were randomly divided into 3 groups: normal control group with saline injection, pulmonary hypertension model control group with hypoxia treatment and saline injection, DBZ group with hypoxia treatment and DBZ injection. The right ventricular pressure was determined by ultrasound cardiogram.Pulmonary arterial remodeling was detected by HE staining.Proliferation cell nuclear antigen and CCK-8 in pulmonary arterial smooth muscle cells were detected by Western blotting. Results The right ventricular pressure of pulmonary hypertension group was significantly increased compared with normal control group [(4.60±0.16) kPa vs. (3.37±0.18) kPa(P<0.01)].After hypoxia treatment, pulmonary arterial remodeling and proliferation of pulmonary arterial smooth muscle cells of the rats of pulmonary hypertension group were augmented remarkably. Rats from DBZ group showed reductions in right ventricular pressure, amelioration in pulmonary arterial remodeling and suppression in proliferation of pulmonary arterial smooth muscle cells. The proliferation of rat pulmonary artery smooth muscle cells decreased significantly in DBZ treated group [(2.073±0.064) vs.(4.392±0.013)] compared with model control group (P<0.05). Conclusion Notch pathway takes part in the process of pulmonary hypertension, and DBZ injection can significantly suppress the proliferation of pulmonary artery smooth muscle cells with a protective effect on pulmonary hypertension.
8.Prenatal ultrasonic diagnosis of fetal interrupted aortic arch
Ying DONG ; Ling WANG ; Sheng ZHAO ; Ning GUO ; Lei XIAO
Chinese Journal of Ultrasonography 2014;(11):983-986
Objective To evaluate the value of prenatal ultrasound in the interrupted aortic arch (IAA), and analyze the reasons of misdiagnosis and improve diagnostic ratio of this kind of defects. Methods Ultrasonic characteristics were analyzed in 16 fetuses with aortic arch anomalies, which were compared with ultrasound image and autopsy results of the normal fetus. The relativity of fetal IAA and abnormal chromosome was also analyzed. Results Among the 16 cases, 15 cases were confirmed by anatomy and the accuracy of ultrasound diagnosis was 94% (15/16), of which one case was serious constriction of aortic arch, one case was error type, three cases were obtained explicit type due to unsatisfactory results of prenatal ultrasound. The coincidence rate of ultrasonic type was 73% (11/15). All of the corrected diagnosed cases were detected with ventricular septal, of which 5 cases were detected with complete endocardial cushion defect, 9 cases were found extra cardiac malformations. Among the 7 karyotype check cases, 3 cases were diagnosed with Trisomy 18, 1 case Trisomy 13, while the rest 3 cases normal. The incidence rate of Trisomy 18 was 43 % (3/7). Conclusions Prenatal ultrasound shows a high accuracy in diagnosing fetal interrupted aortic arch (IAA ), but there’s a need to be improved in explicit typing. It is difficult to identify fetal interrupted aortic arch (IAA) and serious constriction of aortic arch (COA). The incidence rate of Trisomy 18 in the abnormal chromosome of fetal IAA is high.
9.MicroRNA-21 Regulates Cardiac Remodeling by Promoting Proliferation and Differentiation of Fibroblast after Myocardial Infarction
Dong GUO ; Minhong ZHANG ; Qingping XIAO ; Jianwen LIU
Tianjin Medical Journal 2014;(5):447-450
Objective To investigate the role of microRNA-21(miR-21) on cardiac fibroblast proliferation and dif-ferentiation in the mouse model of myocardial infarction. Methods The mouse model of myocardial infarction (MI) was es-tablished by ligation of the left coronary artery in male C57BL/6 mice(MI group). The echocardiographic assessment and his-tological evaluation were performed after ligation. The expression levels of miR-21 were measured by quantitative real-time PCR in the various myocardial tissues. The cardiac fibroblasts transfected with miR-21 mimic were over-expressed miR-21. The proliferation was assessed by immunostaining for 5-ethynyl-2’-deoxyuridine (EdU). Western blot assay was used to detect the expression ofα-SMA and Smad7 in the cardiac fibroblasts,and compared with control group and blank group. Results The expression of miR-21 was significantly increased in border area in MI group than that of sham group [(6.043 ± 0.231)×10-4 vs(1.620±0.451)×10-4,P<0.01]. There was a higher expression of miR-21 in miR-21 mimic group than that of control group and blank group [(4.839±0.705)×10-4 vs(1.143±0.064)×10-4 vs(1.017±0.201)×10-4,P<0.01]. The EdU positive rate was significantly higher in miR-21 mimic group than that of control group and blank group[(27.892±1.645)%vs(12.553 ± 1.227)% vs(13.946 ± 1.550)%,P<0.01]. The expression of α-SMA was significantly increased in miR-21 mimic group, while the expression of Smad7, a target gene of miR-21, was significantly decreased. Conclusion The over-expression of miR-21 in cardiac fibroblasts disrupts TGF-βsignaling pathway by reducing the expression of Smad7, which promotes the proliferation and differentiation of cardiac fibroblast, and finally regulates cardiac remodeling after myocardial infarction.
10.Effect of p38 MAPK pathway inhibitors SB203580 on cell cycle of leukemia K562 cell lines and its mechanisms
Xiao GUO ; Chunjie DONG ; Dan SONG ; Wenjing LI ; Ling PAN
Journal of Leukemia & Lymphoma 2009;18(8):449-451
Objective To study the effect of p38 mitogen activated protein kinase (MAPK) pathway inhibitors SB203580 on cell cycle of K562 cell lines and its mechanisms. Methods The expression of mRNA and protein of p38,Cyclin D2,Cyelin E and P27 in K562 cell lines treated with SB203580 were detected by retrotranscription polymerase chain reaction (RT-PCR) and Western blotting, respectively. Cell cycle was determined by flow eytometry (FCM). Results The expressions of mRNA and protein of p38, Cyclin D2 and Cyclin E in K562 cell lines treated with SB203580 were decreased and the expression of p27 was increased.The percentage of cells in G0/G1 phase was increased and was decreased in S phase. There was a significant difference as compared with K562 cell lines before treated with SB203580. Conclusion SB203580 can affect cell cycle regulatory proteins by p38 pathway and eventually inhibit proliferation of K562 cells.