1.A phenol-free method for DNA isolation from human blood
Peng JIAO ; Wenjing YE ; Qi CHANG ; Yingjie CUI ; Xiaomin ZHAO
Basic & Clinical Medicine 2006;0(08):-
Objective To find an ideal method of DNA isolation from blood and especially from clotted blood and to minimize the volume of blood collected for laboratory and clinical tests.Methods DNAs were isolated from antiagglutinated and agglutinated blood samples from auricular veins of 30 healthy subjects. The DNAs of these samples were obtained by a nonenzymatic, nontoxic procedure optimized by us and determinated by agarose gel electrophoesis and PCR. Results The yields of DNA isolated from clotted blood and antiagglutinated blood were (40.2?8.86)mg DNA/L and (39.1?10.2)mg DNA/L, and purities were 1.87?0.11 and 1.92? 0.12. The DNAs that we isolated from all samples had high molecular weight and by PCR the dimorphism of ALU alleles of the 8th intron of t-PA was easy to be obtained, so they were complete and reliable. Conclusion This method is rapid, easy, efficient and nontoxic for isolation of DNA from clotted and fresh blood and meets requirements for clinical testing and molecular biology study.
2.Research on the relationship between lung cancer with CYP1A1,CYP1B1,VEGF,CAIX genes
Feng GAO ; Lixia CHEN ; Fuhou CHANG ; Tuya BAI ; Jianxin ZHANG ; Xiaomin SHENG
Chinese Journal of Biochemical Pharmaceutics 2014;(2):151-152,156
Cytochrome P 4501 A 1, Cytochrome P 4501 B 1,Vascular endothelial growth factorand carbonic anhydrase Ⅸ belong to the downstream genes of aryl hydrocarbon receptor (AhR)and hypoxia inducible factor 1(HIF-1)signaling pathways. The abnormal expression of those genes were regarded to associated with the occurrence,development and angiogenesis of lung cancer. In this paper, the relationship between CYP1 A 1,CYP1 B 1,VEGF,CAⅨgenes and lung cancer was summarized, which aims to provide new ideas for lung cancer research.
3.Effect of IFN-gamma-endostatin gene therapy in combination with X-rays on inhibition of primary breast tumor growth and lung metastases in a murine model
Linlin LIU ; Xiaomin CHANG ; Qi ZHANG ; Weijing ZHANG ; Xiuyi LI ; Tiejun WANG
Chinese Journal of Radiological Medicine and Protection 2010;30(4):387-390
Objective To evaluate the antitumor effects of interferon (IFN)γ-endostatin based gene radiotherapy in a metastatic breast tumor model of mice, and to elucidate the possible mechanisms involved. Methods Murine mammary adenocarcinoma 4T1 cells transfected with pEgr-IFN-γ and pEgrendostatin plasmids were irradiated with 2-20 Gy of X-rays. IFN-γ and endostatin levels in the culture supernatants were measured. Female BALB/c mice were inoculated with 1 × 105 of 4T1 cells by mammary fat pad injection, and divided randomly into control, empty vector, gene therapy (pEgr-IFN-γ and pEgrendostatin), radiotherapy, and combined gene-radiotherapy groups. Tumor/body weight ratio, lung metastases, and survival of the tumor-bearing mice were observed. Splenic cytotoxic T-lymphocyte (CTL)and natural killer (NK) cell activity and intratumor microvessel density were also assessed. Results Irradiation significantly enhanced the section of IFN-γ and endostatin from the transfected 4T1 cells.Compared with gene therapy or radiotherapy alone, combined gene-radiotherapy resulted in the maximal attenuation in tumor growth rate, lung metastases and increased survival. The activities of CTL and NK cells were significantly enhanced and intratumor microvessel density reduced ( t = 2. 120-22.140, P < 0.05 ).Conclusions IFN-γ-endostatin-based gene-radiotherapy could provide a potential antitumor effect in a murine metastatic breast tumor model, which may be related to IFN-γ-stimulated CTL and NK cell activation, and endostatin-induced antiangiogenic activity. Gene-radiotherapy could serve as a neoadjuvant therapy for the locally advanced breast cancer.
4.Progress of cell-free fetal RNA in maternal plasma in prediction of preeclampsia
Shanshan LI ; Wen LI ; Yongmei SHEN ; Xiaomin ZHAO ; Lei ZHANG ; Ying CHANG
Chinese Journal of Perinatal Medicine 2021;24(4):310-313
Due to the advantages of being unaffected by fetal gender, ease of detection, and good stability, circulating cell-free fetal RNA (cffRNA) is a potential biomarker in obstetric practice. Current evidence has shown that placenta is the main source of circulating cffRNA. In view of the abnormal expression levels in women with preeclampsia and intrauterine growth restriction, circulating cffRNA is proposed as a potential tool to predict or diagnose these diseases. A summary of the molecular characteristics and the applications in preeclampsia of circulating cffRNA is reviewed, in order to evaluate the hypothesis for the prediction of preeclampsia by cffRNA.
5.Uncultured chorionic villus samples for fetal chromosome karyotype analysis: a retrospective analysis of 438 cases
Ying CHANG ; Xiaomin ZHAO ; Shanshan LI ; Wen LI ; Yongmei SHEN ; Lei ZHANG ; Xu CHEN
Chinese Journal of Perinatal Medicine 2021;24(5):382-386
Objective:To understand the possible detected mosaicism chromosome karyotyping using uncultured chorionic villus samples.Methods:This study retrospectively analyzed the clinical data of singleton pregnant women who underwent fetal chromosome karyotyping of uncultured chorionic villus samples at the Prenatal Diagnosis Center of Tianjin Central Hospital of Gynecology and Obstetrics from January 2016 to January 2019. Prenatal diagnosis indicators, fetal karyotypes, the incidence of chromosomal mosaicism and subsequent diagnosis, and perinatal outcomes were analyzed. Amniocentesis was performed when chromosomal mosaicism was identified. Descriptive statistical analysis was used for data analysis.Results:(1) A total of 438 pregnant women with available follow-up data were enrolled. Increased nuchal translucency (56.6%, 248/438) was the major indication for prenatal diagnosis. The karyotype analysis indicated that 79.5% (348/438) were normal, and 2.7% (12/428) were mosaicism. (2) Of the 438 cases, 336 cases (76.7%) were delivered at term, of which 327 cases were uncomplicated. There was one case of premature rupture of membranes within one week after amniocentesis and eight cases of abortion/fetal death between one week after the amniocentesis and 28 weeks of gestation. Of these nine cases, four had chromosomal abnormalities, and five had normal karyotypes. Termination of pregnancy was selected in 65 cases (14.8%) and 28 cases (6.4%) delivered before term. (3) Among the 12 (2.7%) cases of chromosomal mosaicism verified by fetal karyotyping through amniocentesis, four were confined placental mosaicism; six were abnormal chromosomal karyotypes in chorionic villous and amniotic fluid; one was true fetal mosaicism; one was a false positive. Among the 12 cases, three continued to term, one was preterm delivered, and eight selected labor induction, including three cases each of trisomy-21 and ultrasonographic structure abnormalities, and one case each of fetal growth restriction and labor induction based on patient preference.Conclusions:Karyotype analysis of uncultured chorionic villus samples may detect a certain proportion of mosaicism. Therefore, combining fluorescence in situ hybridization to achieve an accurate diagnosis and a detailed and systematic ultrasonic scan are recommended.
6.Investigating the effects of moxibustion on serum metabolism in healthy human body based on the 1H NMR metabolomics technology
Chang SHE ; Huan ZHONG ; Xiaomin HU ; Houlian WANG ; Anlin GUO ; Jinping GU ; Caihua HUANG ; Junyun GE ; Mi LIU ; Mailan LIU ; Donghai LIN ; Xiaorong CHANG
Journal of Acupuncture and Tuina Science 2016;14(2):93-100
Objective:To investigate the effects of moxibustion on the serum metabolism in healthy human body based on the 1H nuclear magnetic resonance (1H NMR) metabolomics technology, and to find the differences in metabolites, as well as to elucidate the effects of moxibustion on healthy human body from the viewpoint of global metabolism. Methods:Sixty subjects of healthy young men from the enrolled students were randomly divided into a moxibustion group and a control group using random number table, with 30 cases in each group. Subjects in the moxibustion group accepted mild moxibustion on the right Zusanli (ST 36), once a day, 15 min for each time, and continuous treatment for 10 d; those in the control group did not receive any intervention. There were 28 cases in the moxibustion group and 23 cases in the control group after interventions. On the 1st day, 5th day and 10th day of the intervention, serum samples were collected from subjects of the two groups, and metabolic spectra were obtained by the1H NMR technology. Results: Before and after the intervention, serum1H NMR of the moxibustion group was significantly different, while the difference was insignificant in the control group. Metabolite changes in the moxibustion group were mainly in low density lipoprotein (LDL)/very low density lipoprotein (VLDL), valine, isoleucine, leucine, lactic acid, glutamine, citric acid, polyunsaturated fatty acids, creatine, glycine, glycerol, glucose, tyrosine, histidine, formic acid, alanine, lysine, acetic acid, and glutamic acid. Conclusion:Moxibustion can cause changes of serum metabolic patterns in healthy human by influencing the concentrations of branched-chain amino acids, polyunsaturated fatty acids, and other metabolites to strengthen body's metabolisms of amino acids and fatty acid.
7.The current practice and future promise of integration of exercise science and medicine in China
Jianjun GUO ; Xiaomin SUN ; Jing WU ; Qing CHANG ; Mitsuru HIGUCHI ; Weimin LI ; Sirui ZHOU ; Youfa WANG
Global Health Journal 2018;2(3):31-35
With an increasing proportion of sedentary lifestyle related chronic diseases, an efficient way to help fight the growing world epidemic of non-communicable diseases (NCDs) and promote public health in a fast-changing world is urgently needed. Exercise and medicine science have played an important role in prevention and control of NCDs. However, the current status and future development directions regarding the integration of exercise science and medicine (IESM) in China have not been well discussed. During 2017 Belt and Road Initiative Global Health International Congress & 2017 Chinese Preventive Medicine Association-Chinese Society on Global Health Annual Meeting, Xi'an Jiaotong University Global Health Institute, and the Integration of Sport and Medicine Innovation Research Center, China Institute of Sport Science organized the IESM Forum on September 27. Six leaders and experts from China and abroad presented excellent research reports in the IESM Forum from several aspects. Experts reached a consensus at the end of their discussions that, in the near future, the IESM will be a key part of a sustainable health care system and as such should contribute to prosperity in China and around the world. However, Abstract compared with European, American and Japanese universities, the development of the IESM in China is in its early stages with huge development potential.
8.Clinical value of serum HbA1c,Alarin and Ficolin-3 levels in predicting pregnancy outcome in patients with gestational diabetes mellitus
Hong CHANG ; Kewei ZHANG ; Jing XU ; Xiaomin CUI ; Feifei YANG
Tianjin Medical Journal 2024;52(6):625-629
Objective To explore the value of the combination of serum hemoglobin A1c(HbA1c),Alarin and Ficolin-3 in predicting adverse pregnancy outcomes in patients with gestational diabetes mellitus(GDM).Methods From March 2021 to March 2023,129 GDM patients who underwent prenatal examination and hospital delivery in Yantai Yeda Hospital were collected as the GDM group,while 133 pregnant women with normal glucose tolerance test results were regarded as the control group.Fully automated glycated hemoglobin analyzer was applied to detect serum HbA1c level.Enzyme linked immunosorbent assay(ELISA)was applied to detect serum Alarin and Ficolin-3 levels.Pearson method was used to analyze the correlation between serum HbA1c,Alarin,Ficolin-3 levels and 2 hour postprandial glucose(2 h PG),fasting blood glucose(FBG)and homeostasis model assessment method for insulin resistance(HOMA-IR)in GDM patients.Logistic regression was applied to analyze the relationship between HbA1c,Alarin,Ficolin-3 levels and adverse pregnancy outcomes in GDM patients.Receiver operating characteristic(ROC)curve was plotted to analyze the value of serum HbA1c,Alarin and Ficolin-3 levels in predicting adverse pregnancy outcomes in GDM patients.Results The 2 h PG,FBG,HOMA-IR,and serum HbA1c,Alarin,and Ficolin-3 levels were significantly higher in the GDM group than those in the control group(P<0.05).The serum levels of HbA1c,Alarin and Ficolin-3 were positively correlated with 2 h PG,FBG and HOMA-IR in GDM patients(P<0.05).The serum HbA1c,Alarin and Ficolin-3 levels were greatly higher in GDM patients with poor blood glucose control than those in GDM patients with good blood glucose control(P<0.05).The above levels of three indicators in GDM patients with adverse pregnancy outcomes were significantly higher than those in GDM patients without adverse pregnancy outcomes(P<0.05).Elevated levels of HbA1c,Alarin and Ficolin-3 were independent risk factors for adverse pregnancy outcomes in GDM patients(P<0.05).The area under the curves of HbA1c,Alarin and Ficolin-3 alone and in combination were 0.840,0.865,0.815 and 0.979,respectively in predicting adverse pregnancy outcomes in GDM patients.Conclusion The serum HbA1c,Alarin and Ficolin-3 levels are abnormally elevated in GDM patients,and the combined detection of the three can improve the value in predicting adverse pregnancy outcomes.
9.Influence of continuous nursing intervention on rehabilitation effect of stroke patients with dysphagia
Jinhong CHANG ; Ling LI ; Xiaomin LI ; Yu CHEN
Chinese Journal of Modern Nursing 2016;22(31):4501-4503,4504
Objective To explore influence of continuous nursing intervention on rehabilitation effect of stroke patients with dysphagia. Methods 112 cases of stroke patients with dysphagia hospitalized in Daping Hospital, Third Military Medical University from March 2015 to January 2016 were selected and divided according to random number table method into experimental group and control group, each with 56 cases. Patients in the two groups were treated by conventional therapy, yet patients in the experimental group were treated with extra continuous training to strengthen swallowing function. Therapeutic effects, scores of swallowing function, incidence of complications and satisfaction in the two groups were compared. Results Total effective rate in the experimental group was 89.29%, and in the control group, 94.69% (χ2=1.087, P>0.05). After treatment, swallowing function of patients in the two groups were all higher than those before the treatment, and scores of patients in the experimental group were higher than those in the control group ( P<0. 050 ); after treatment, occurrence rate of aspiration in the experimental group was lower than that in the control group ( P<0. 05);it was revealed in survey that patients′satisfaction in the experimental group was higher than that in the control group ( P<0.05) . Conclusions For stroke patients with dysphagia, continuous nursing intervention can help to improve their swallowing function, reduce choking-cough and aspiration, and upgrade their satisfaction.
10.The impact of DRG payment based on structural variation degree and grey correlation on hospitalization expenses of gynecological tumor inpatients
China Pharmacist 2024;27(4):622-630
Objective To explore the main categories and changing directions of hospitalization expenses of gynecological tumors,and provide strategies and suggestions for effectively controlling hospitalization expenses and improving the payment scheme of medical insurance fund.Methods The expense information of patients discharged from Huzhou Central Hospital from January 2020 to December 2022 was collected,and analyzed by the payment method of structural variation and disease diagnosis related groups(DRG)with grey correlation,and the correlation degree was observed.Results From 2020 to 2022,the average hospitalization cost of 2 138 gynecological tumor patients showed a downward trend.The hospitalization cost structure of patients showed that surgical and laboratory expenses accounted for a relatively high proportion,while nursing and treatment expenses accounted for a relatively low proportion.The changes in the hospitalization structure of patients showed that material costs were gradually decreasing,while operating costs,bed fees,pathology fees,and nursing fees were gradually increasing.Diagnosis and treatment fees,drug fees,radiation fees,testing fees,treatment fees,surgery fees,and other expenses were first decreasing and then increasing.In the hospitalization expenses of gynecological tumors from 2020 to 2022,the most closely related expenses were surgical expenses,drug expenses,and laboratory expenses,while the least related expenses were bed expenses,nursing expenses,and treatment expenses.The proportion of patient hospitalization expenses was basically consistent with the degree of correlation.The structural change rate of hospitalization expenses for gynecological tumors from 2020 to 2022 was 13.67%,with a structural change rate of 14.61%from 2020 to 2021 and 10.77%from 2021 to 2022.The direction of structural changes showed that from 2020 to 2022,there were positive changes in operating fees,bed fees,pathology fees,and nursing fees,with significant changes in surgical fees.The largest contribution rate of changes in the hospitalization cost structure of gynecological tumors from 2020 to 2022 was surgical expenses,accounting for 37.29%,followed by examination expenses,accounting for 13.08%.The contribution rates of various expenses to the structural changes of average hospitalization expenses varied during different time periods.From 2020 to 2021,the largest contribution rate of hospitalization expense structural changes was surgical expenses,accounting for 33.05%,followed by drug expenses,accounting for 12.05%.From 2021 to 2022,the largest contribution rate of hospitalization expense structural changes was surgical expenses,accounting for 48.00%,followed by drug expenses,accounting for 16.85%.Correlation analysis showed that the hospitalization expenses of patients were related to medical insurance type and length of stay(P<0.05).Conclusion The average hospitalization cost of gynecological tumor patients has been effectively controlled,and their clinical hospitalization costs are gradually rationalized.However,material and surgical costs still have a significant impact on the hospitalization costs of patients,indicating that the labor value of clinical medical personnel has increased less.DRG payment can control clinical medical expenses to a certain extent,and further optimization is needed to improve supporting policies,enhance the technical value of medical personnel,and strengthen the management of medical consumables.