1.Differential proteomic study of papillary thyroid carcinoma and thyroid borderline lesion
Hui YANG ; Minjie XU ; Tianxing CHEN ; Wanpu WANG
Chinese Journal of Clinical Oncology 2016;43(16):712-717
Objective:To search for potential protein biomarkers of papillary thyroid carcinoma (PTC) and thyroid borderline lesion. Dif-ferentially expressed proteins between the two were analyzed and identified. Methods:A total of 118 cases of thyroid resection sam-ples were obtained from patients who underwent surgery at the First People's Hospital of Yunnan Province from April 2013 to Febru-ary 2015. Experimental groups included 43 PTCs (40 classic and 3 follicular variants) and 33 thyroid borderline lesions (with equivocal PTC type nuclear features and papillary structure, but without metastasis, and lacking capsular or vascular invasion;8 cases with atypi-cal adenoma), respectively. The control group included 42 normal thyroid tissues adjacent to carcinoma. The total protein extracts from frozen thyroid samples of 10 cases in each group were profiled with 2D electrophoresis. The differential protein spots were then revealed by PDQUEST 7.3 software and identified by matrix-assisted laser desorption ionization time-of-fight/time-of-fight mass spec-trometry and Swiss-Prot database search. Six differentially expressed proteins of these spots were further validated using 118 samples through immunohistochemistry. Results:A set of 24 differentially expressed spots significant in discriminating between the sample groups were found, and 18 proteins were identified. Immunohistochemistry revealed the following six proteins located in the cyto-plasm:keratin, type II cytoskeletal 8 (CK8);keratin, type I cytoskeletal 18 (CK18);60 kDa heat shock protein (HSP60);actin, cytoplasmic 2 (γ-actin);14-3-3 protein beta/alpha (14-3-3β/α);and 14-3-3 protein epsilon (14-3-3ε). All six proteins were overexpressed in PTC compared with normal tissues (P<0.001). Meanwhile, CK8, CK18, HSP60, andγ-actin were overexpressed in PTC compared with bor-derline lesions (P<0.01). Except for CK8, the five other proteins were overexpressed in borderline lesions compared with normal tis-sues (P<0.001). Conclusion:Proteomic analysis is useful in searching for new biomarkers of PTC and thyroid borderline lesion. The ex-pression patterns of these differentially expressed proteins can be further validated using immunohistochemistry. The newly identified protein biomarkers can positively contribute to early PTC diagnosis.
2.Clinical Observation of Ziprasidone Combined with Olanzapine in the Treatment of Refractory Schizophre-nia in Elderly Patients
Jinyu HAO ; Binhua CHEN ; Tianxing QIN ; Lirong WANG ; Jiangang WEN
China Pharmacy 2015;26(33):4652-4654
OBJECTIVE:To observe the efficacy and safety of olanzapine combined with ziprasidone in the treatment of refrac-tory schizophrenia in elderly patients. METHODS:120 elderly patients with schizophrenia were randomly divided into control group and study group. Control group was orally treated with Olanzapine tablet 10-20 mg,once a day;study group was orally treat-ed with Ziprasidone hydrochloride capsule 80-120 mg,twice a day+Olanzapine tablet(the usage was the same as control group). The clinical efficacy in 2 groups was evaluated after 2 weeks,PANSS score,FPG,2 h PG,TC,TG,HDL-C,LDL-C,body weight, BMI before and after treatment and incidence of adverse reactions were observed. RESULTS:There were no significant difference in the total efficacy and incidence of adverse reactions between 2 groups(P>0.05). After treatment,the PANSS scores at different time point in 2 groups were significantly lower than before,and 12 weeks<8 weeks<4 weeks<2 weeks,the differences were sta-tistically significant(P<0.05),however,there was no significant difference between 2 groups(P>0.05). There were not signifi-cant differences in the indexes of blood glucose and lipid,body mass and BMI in study group before and after treatment (P>0.05);after treatment,the blood glucose after 8 and 12 weeks and LDL-C,TG,TC,body mass and BMI after 4,8 and 12 weeks in control group were significantly higher than before and study group same time,the HDL-C was significantly lower than before and research group,the differences were statistically significant(P<0.05). CONCLUSIONS:The efficacy and safety of both olan-zapine combined with ziprasidone and olanzapine alone in the treatment of refractory schizophrenia in elderly patients is similar, however,it is better than olanzapine alone in terms of controlling blood glucose and lipid.
3.Cost-efficacy Analysis of Domestic and Imported Olanzapine in the Treatment of Schizophrenia
Yunfeng CHEN ; Yuanfen WANG ; Tianxing QIN ; Lianzhong ZHANG ; Xixian GUO
China Pharmacist 2015;(6):978-980
Objective:To compare the pharmacoeconomics value of domestic olanzapine with imported olanzapine in the treatment of schizophrenia to provide reference for the rational drug use in clinics. Methods:Two hundred patients with schizophrenia were ran-domly divided into group A ( treated with domestic olanzapine ) and group B ( treated with imported olanzapine ) with 100 cases in each. The treatment course was 8 weeks. The patient’ s condition, adverse reactions, social function, quality of life and daily activity in the two groups were evaluated. Meanwhile, cost-efficacy analysis was performed. Results:The scores of PANSS, SDSS, SQLS and ADL after the treatment were all significantly lower than those before the treatment in both groups (P<0. 01). However, there was no significant difference between the two groups (P>0. 05). In the 2nd and 4th weekend after the treatment, the scores of TESS in group A were all significantly higher than those in group B (P<0. 01). The effectiveness of the two groups was similar. The cost in group A was significantly lower than that in group B(P<0. 01). The efficacy-cost ratio in group A was higher than that in group B(P<0. 01). Conclusion:The domestic olanzapine is as effective and safe as imported olanzapine in the treatment of schizophrenia with lower treat-ment cost. Therefore, the pharmacoeconomics value of domestic olanzapine is much better.
4.The effect of up-regulating miR-34c-5p on the proliferation and invasion of nasopharyngeal carcinoma cell line HONE-1
Feifei MA ; Yanqiang HAO ; Guoqiang WANG ; Xin ZHANG ; Cheng ZHI ; Tianxing JI
Tianjin Medical Journal 2015;(10):1097-1099
Objective To investigate the effect of up-regulating miR-34c-5p on cloning formation and migration of nasopharyngeal carcinoma cell line HONE-1 in vitro. Methods Expression levels of miR-34c-5p in nasopharyngeal cell line NP69 and nasopharyngeal carcinoma cell line HONE-1 were investigated by real time quantitative PCR;Cloning Forma?tion Test and Transwell Migration Assay were used to explore the effect of up-regulating miR-34c-5p on proliferation and migration of nasopharyngeal carcinoma cell line HONE-1. Results The expression of miR-34c-5p in nasopharyngeal car?cinoma cell line HONE-1 was lower than that in normal nasopharyngeal cell line NP69. Up-regulating miR-34c-5p signifi?cantly suppressed the cloning formation and migration capacity, compared to those of NP69 cell line and HONE-1 with nor?mal level of miR-34c-5p(P<0.05). Conclusion Down-regulating miR-34c-5p involve in proliferation and migration of nasopharyngeal carcinoma and may be a used as a new therapeutic target for nasopharyngeal carcinoma.
5.Clinicopathologic analysis of 83 cases with large cell lung carcinoma
Rui LIANG ; Baocun SUN ; Tianxing CHEN ; Lianyu ZHANG ; Qingna YAN ; Zhiqiang WANG ; Lilin LUO ; Ming TANG ; Kewei JIN
Chinese Journal of Clinical Oncology 2013;(15):926-929
Objective:This study aimed to analyze and summarize the clinicopathologic characteristics and treatment protocols of large cell lung carcinoma (LCLC). Methods:Clinicopathologic data of 83 cases with LCLC confirmed by pathology in 2012 were retrospectively reviewed. Results:Exactly 83 cases of LCLC accounted for 5.4%of lung cancer in 2012. Sixty-three cases were male and twenty were female. The average age was 60.4 years old. The average maximum diameter of the tumor was 4.6 cm. The common manifestations in imageology were peripheral type. Only four cases were correctly diagnosed by sputum exfoliocytology, biopsy of bronchofibroscope, and paracentesis before surgery. Sixty-three cases (76%) underwent surgical resection, and pulmonary lobectomy was mainly selected. Postoperative pathology diagnosis indicated that 39 cases were classic large cell carcinoma, 31 were large cell neu-roendocrine carcinoma, 2 were combined large cell neuroendocrine carcinoma, 8 were basaloid carcinoma, 2 were clear cell carcinoma, and 1 was lymphoepithelioma-like carcinoma. Each subtype of LCLC had respective characteristics of pathomorphology and immuno-histochemistry. Lymph node metastasis occurred in 62 cases (75%). Conclusion:The incidence rate of LCLC, which is a highly aggres-sive malignancy, is low. The clinical manifestation and imageology characteristics of LCLC do not have specificity, and its final diagno-sis depends on pathology diagnosis. Operation is the main treatment method. Improving the diagnosis rate of LCLC and further subdi-viding the pathological subtypes are important for a normalized comprehensive treatment of LCLC.
6.R-wave detection of ECG signal by using wavelet transform.
Xuelong TIAN ; Chunhong YAN ; Yaqing YU ; Tianxing WANG
Journal of Biomedical Engineering 2006;23(2):257-261
The detection of R-wave of ECG is essential to the analysis of the heart rate variability (HRV). In this paper, an R-wave detection method using wavelet transform(WT) is presented in line with the principle of discrete wavelet transform(DWT) and multi-resolution technique (MRT). We made use of the special properties of dbl wavelet in time-domain, decomposed the original ECG signals into 3-level detailed signals on different frequency bands by using DWT with Mallat algorithm, and got appropriate threshold values in different high frequency bands to distinguish R-wave. It is concluded that the algorithm had significant effects on it, which is verified by MIT/BIH (Massachusetts Institute of Technology/Boston's Beth Israel Hospital) ECG Database. The results show that R-wave could be detected accurately and localized precisely by this method, even when the patient was seriously sick or the signal was disturbed by noise. Consequently the method has a quite high locating precision (its error is not more than two sampled points and about 85 percent of the points of R-wave in ECG signal are localized precisely) and the correct detection rate of R-wave is 99.8% by using wavelet transform, so this method is quite feasible.
Algorithms
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Electrocardiography
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Heart Rate
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physiology
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Humans
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Signal Processing, Computer-Assisted
7.Exercise ECG signal de-noising using unbiased risk estimate and wavelet transform.
Xuelong TIAN ; Tianxing WANG ; Binglian ZHU ; Guochuan LIU ; Shouzhong XIAO
Journal of Biomedical Engineering 2005;22(1):137-142
In this paper a filtering method for EECG (Exercise ECG) signal is proposed which is based on wavelet transform (WT) and Stein's unbiased risk estimate (SURE). This algorithm was used to decompose original EECG signals into detail signals on different frequency bands by using WT and get different thresholds with SURE. According to EECG signal features and by using the above thresholds, the method amended several detail signals so that the main interferences in EECG signal can be removed efficiently. The authors also put forward two indexes to estimate the validity of such algorithms. Our experimental results demonstrate that this is an efficient de-noising method for EECG.
Algorithms
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Echocardiography, Stress
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Electrocardiography
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methods
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Exercise Test
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methods
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Humans
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Signal Processing, Computer-Assisted
8.Clinical Observation of the Efficacy of the Uterine Net-Like Compression Su-ture for Treating Intractable Postpartum Hemorrhage
Chendi WANG ; Tianxing ZHU ; Ying LEI
Journal of Practical Obstetrics and Gynecology 2024;40(11):923-927
Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P<0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P>0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P<0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P<0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P>0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.
9.Clinical Observation of the Efficacy of the Uterine Net-Like Compression Su-ture for Treating Intractable Postpartum Hemorrhage
Chendi WANG ; Tianxing ZHU ; Ying LEI
Journal of Practical Obstetrics and Gynecology 2024;40(11):923-927
Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P<0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P>0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P<0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P<0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P>0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.
10.Clinical Observation of the Efficacy of the Uterine Net-Like Compression Su-ture for Treating Intractable Postpartum Hemorrhage
Chendi WANG ; Tianxing ZHU ; Ying LEI
Journal of Practical Obstetrics and Gynecology 2024;40(11):923-927
Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P<0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P>0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P<0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P<0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P>0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.