2.The construction of phIFN-?-2B shuttle plasmid and its expression in BCG
Chunyu LIU ; Ruifa HAN ; Tengxiang MA ; Jiwu CHANG ; Yuzhi HAN ; Zhifang SUI
Chinese Journal of Urology 2006;0(S1):-
Objective To construct a new secreting recombinant hIFN-?-2B-BCG to provide a new tool for the treatment of bladder tumor. Methods BCG was genetically engineered to secrete recombinant human interferon-alpha 2B by transforming of shuttle plasmid phIFN-?-2B. Expression of hIFN-? was readily detectable by ELISA. Results The phIFN-?-2B was transformed in BCG correctly,and the value of hIFN-?-2B in supernatant of recombinant BCG culture was calculated to approximately 997.2 pg/ml. Conclusions This study demonstrates that the recombinant phIFN-?-2B can be expressed in BCG secretively. As the construction of the plasmid and its transformation and expression in BCG were accomplished successfully, a foundation of reformed BCG and new vaccine will be established.
3.The role of TURP in early diagnosis of prostate carcinoma
Zhifang MA ; Dongwen WANG ; Chun LIU ; Xuezhi LIANG ; Binlin HAN ; Hongfei GAO
Cancer Research and Clinic 2007;19(z1):43-44
Objective To evaluate the role of transurethral resection of the prostate(TURP)in early diagnosis of prostate carcinoma.Methods TURP were perforhaed on 16 suspected patients with prostate carcinoma,based on their mean serum PSA level(11.7 ng/ml),negative results of anal touch and needle system biopsies,or with lower urinary tract symptoms,or those biopsy was not fit.6 cases were diagnosed prostate carcinoma by pathology.3 cases underwent double orchieetomy and treated with anti-androgen drugs.2 cases were emasculated by medicines and treated with anti-androgen drugs.1 case underwent radical prostatectomy after neoadjuvant hormonal therapy.Results 6 cases(37.5%)diagnosed prostate carcinoma by pathology were followed up for 3 months to 2 years and were all alive.Lower urinary tract symptoms were relived in 2 patients who underwent TURP. Conclusion TURP play a important role in early diagnosis of prostate carcinoma in certain circumstances.The symptoms could be relieved by TURP in patients with lower urinary tract symptoms.
4.Analysis on misdiagnosis of insulinoma
Chong LI ; Zhizhen LI ; Yuexin BAI ; Chao HAN ; Zhifang WANG ; Shuo WANG ; Lili ZHENG
Chinese Journal of Endocrinology and Metabolism 2010;26(7):581-582
Retrospectively from February, 2006 to June, 2009 the clinical characteristics of 14 misdiagnosed cases of insulinoma in the First Affiliated Hospital of Zhengzhou University were analysed. The rate of misdiagnosis was 38% ( 14/37). The rate of IRI/G≤0. 3 was 33%. Insulinoma has often been misdiagnosised when IRI/G≤0. 3. Hence a diagnosis of insulinoma can not be excluded with this IRI/G rate.
5.THE TECHNOLOGICAL CONDITIONS OF PRODUCING 2-KETO-LGULONIC ACID FROM D-GLUCOSE BY DIRECT FERMENTATION
Gang ZHANG ; Xiande LAN ; Xiaobin FAN ; Zhihua HAN ; Guanglin YIN ; Zhifang MA ; Wenling DONG ;
Microbiology 1992;0(02):-
2-Keto-L-gulonic acid (2-KLG), the precurcor of L-ascorbic acid synthesis, was prepared directly from D-glucose by tandem fermentation. In the first step fermentation Erwinia sp. SCB 247 translated D-glucose to 2,5-diketo-D-gluconate (2,5-DKG), which accumenlated 180 mg 2,5-DKG per ml in the broth. In the second step fermentation Corynebacterium sp. SCB 3058 reduced 2,5-DKG to 2-KLG, which accumulated 35 mg 2-KLG per ml in the broth. This reductive fermentation was obtained under aerobic conditions by adding a hydrogen donor such as glucose.The average yield of five batches fermentation was 56.3 mol%, from D-glucose to 2-KLG in 10 L fermentor.
6.Release Mechanism and Preparation of Liposome Gel of Total Alkaloids of Sophoras Flavescentis Radix
Lingyin ZHU ; Guantao ZHENG ; Changni ZHOU ; Yanli SHEN ; Zhifang HAN ; Yongyan JIA
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(1):77-81
Objective To optimize the formulation and process of liposome gel of total alkaloids of Sophoras Flavescentis Radix; To prepare the liposome gel of total alkaloids of Sophoras Flavescentis Radix and study its release mechanism.Methods Matrine liposomes was prepared by using film dispersion method; With entrapment efficiency and medicine loading as indexes, acid dye colorimetric method was used for the determination of matrine content in liposomes. Orthogonal design was used to optimize the formulation and the optimal formulation of liposomes was selected. Poloxamer-407 was set as the substrate preparation of matrine liposome gel. The transdermal rate of medicine gel and medicine liposome gel was investigated.Results Obtained through formulation and technology optimization of liposomes formation uniform, particle size was in the range of 100 nm to 400 nm, entrapment 74%, loading 26%. Preparation of liposome gel was transparent semisolid. In vitro results showed, cumulative release dose of matrine hydrogel was 6.34 mg/cm2 within 48 h; cumulative release doses of liposome gel of total alkaloids of Sophoras Flavescentis Radix was 6.97 mg/cm2 within 48 h; cumulative volume, steady-state penetration rate through skin and 48 h volume in the skin of the latter were significantly improved compared with that of the former. Conclusion Optimum preparation is reliable and practical. Liposome gel of total alkaloids of Sophoras Flavescentis Radix made by the preparation is with high quality, which can effectively delay the medicine release rate, increase the volume of medicine in human body.
7.Effect of tumor suppressor factor RUNX3 on the expression of apoptosis-related genes in gastric carcinoma cells
Chunyan ZHANG ; Zhifang LIU ; Xia XU ; Jiping ZENG ; Han YU ; Jihui JIA
Chinese Journal of Pathophysiology 2000;0(07):-
AIM:To investigate the effect of tumor-suppressor RUNX3 on the transcription of apoptosis-related genes bcl-2,bax,caspase-3,caspase-8,caspase-9 in human gastric carcinoma cells BGC823,and to reveal the apoptosis molecular mechanism promoted by RUNX3. METHODS:The eukaryotic expression vector of human Runx3 gene pcDNA3.1-Runx3 was constructed. pcDNA3.1-Runx3 and blank vector pcDNA3.1 were transfected into BGC823 cells,respectively. After 48 h,the total mRNA and protein were acquired and the expression level of Runx3 was determined by RT-PCR and Western blotting. Then,the mRNA and protein expression of bcl-2,bax,caspase-3,caspase-8 and caspase-9 was determined by RT-PCR and Western blotting. ?-actin was used as a control. RESULTS:The eukaryotic expression vector pcDNA3.1-Runx3 was constructed successfully and transfected into BGC823 cells. RT-PCR and Western blotting confirmed that RUNX3 level was higher in pcDNA3.1-Runx3 transfected BGC823 cells than that in blank vector-transfected cells (P
8.Effect of contracted learning on rehabilitation training to patients with stroke
Binying HUANG ; Zhifang HUANG ; Guang YANG ; Hua LIU ; Xiaojing ZHU ; Tianrong HUANG ; Weili HAN ; Wenzhong JIANG ; Yajie LI
Modern Clinical Nursing 2016;15(5):26-30
Objective To explore the effect of contract learning on rehabilitation training to patients with stroke . Methods According to the random number table, 120 stroke patients were randomly divided in equal number into control group and observation group. The patients in the control group were treated with conventional nursing during hospitalization and health guidance during follow-up. The patients in the observation group were given rehabilitation training according to contracted learning during the period of hospitalization and follow-up. The time was 6 months. The quality of life was compared between the two groups of patients before and after the intervention, 1 months after discharge, 6 months after discharge. Results After six months of intervention, the 7 dimensions of quality of life, including daily life ability, hand function, mobility, strength, emotion, communication and participation in the intervention group were significantly better than those of the control group (P<0.001). The 6 dimensions of quality of life, including daily life ability, hand function, mobility, strength, emotion, and communication of the control group were significantly better than before the intervention (P<0.001). Conclusion For stroke patients, the rehabilitation training under the learning contract can improve the effect of rehabilitation training so as to improve the quality of life and the prognosis.
9.Investigation and Analysis of Internships and Employment Intention of Pharmacy Junior Students in Our University
Zhuo DU ; Feidie LIU ; Jianfeng WU ; Haiyan LI ; Xin NIE ; Zhifang CEN ; Weiguang LIANG ; Aifen YAN ; Bin HAN ; Zhong LI
China Pharmacy 2017;28(12):1588-1591
OBJECTIVE:To provide evidence for strengthening education and training before clinical practice and employment guidance among pharmacy junior students of our university. METHODS:Anonymous questionnaire survey was conducted for our university. Questionnaire survey included student employment intention and internship units,relationship of internships with employ-ment,the tendency of employment after graduation,personal attitude about pharmaceutical professional development prospect,ex-pected monthly income in the first year of their career,etc. RESULTS:Totally 71 questionnaires were sent out,71 were effectively received. Among all respondents,74.3%(52 students)believed employment intention had great relationship with internship units;24.3%(17 students)thought employment intention had not great relationship with internship units;moreover,one student thought employment intention had no any relationship with internship units. Most students(94.3%,66 students)with good attitude on in-ternships believed it could accumulate work experience;32.9%(23 students) thought they could stay in the internship unit after practice;moreover,17.1%(12 students) believed practice had little effect on employment. Among them,94.0%(63 students) tended to be employed after graduation,and only 6.0% chose a graduate school to continue their studies. Among the students who chose employment after graduation,76.1%(51 students)tended to engage in pharmaceutical related work,while 17.9%(12 stu-dents) tended to be engaged in work nothing to do with pharmacy or self-employed. The majority (69.6%,48 students) believed that pharmaceutical major prospect was general and pharmaceutical major development varied from person to person;17.4%(12 students)thought pharmaceutical major had good prospect and was promising;13.0%(9 students)believed that pharmaceutical ma-jor had no good prospect and didn't know its prospect. Most of the students(78.2%,54 students)expected a monthly income of 2500-5000 yuan in the first year of their career;18.9%expected a monthly income more than 5000 yuan(13 students);the minor-ity expected a monthly income of 1500-2500 yuan or more than 8000 yuan. CONCLUSIONS:The view of students on internship and employment have a certain gap with the social situation. Related departments of colleges and universities need to adjust the thought of students and strengthen guidance.
10.Expression and significance of fat mass and obesity associated gene and forkhead transcription factor O1 in non-alcoholic fatty liver disease
Jielei ZHANG ; Shan LI ; Jingyi LI ; Chao HAN ; Zhifang WANG ; Chong LI ; Xiaoman WANG
Chinese Medical Journal 2014;(21):3771-3776
Background Non-alcoholic fatty liver disease (NAFLD) is a complex disorder and has been closely linked to obesity.The fat mass and obesity-associated (FTO) gene is a newly discovered gene related to obesity,which enhances oxidative stress and tipogenesis in NAFLD.The forkhead transcription factor O1 (FoxO1) is another important gene involved in NAFLD,which causes lipid disorders when insulin resistance appears in the liver.However,the interactions between FTO and FoxO1 during the pathogenesis of NAFLD have not been fully elucidated.This study was designed to identify the relationship between these two factors that are involved in the development of NAFLD.Methods This study includes two parts referred to as animal and cell experiments.Twelve female SPF C57BL/6 mice were fed a high-fat diet to serve as an NAFLD animal model.Aspartate aminotransferase (AST),alanine aminotransferase (ALT),total triglyceride (TG),total cholesterol (TC),alkaline phosphatase (ALP),high-density lipoprotein (HDL),and low-density lipoprotein (LDL) were measured.Immunohistochemical analysis was used to detect the expression and histological localization of FTO,FoxO1,and adenosine monophosphate (AMP)-activated protein kinase (AMPK).The L02 cells were exposed to high fat for 24,48,or 72 hours.Oil red O staining was used to detect intracellular lipid droplets.Reverse transcription-polymerase chain reaction was used for analyzing the levels of FTO and FoxO1 mRNA.Results At the end of 10 weeks,ALP,ALT,AST,and LDL were significantly increased (P <0.01),while TC and TG were also significantly higher (P <0.05).In addition,HDL was significantly decreased (P <0.05).The FTO and FoxO1 proteins were weakly expressed in the control group,but both FTO and FoxO1 were expressed significantly higher (P <0.01) in the experimental group,and the expression of the two factors was significantly correlated.AMPK in the high-fat group showed a low level of correlation with FTO,but not with FoxO1.Oil Red O staining results showed that the cells cultured in 50% fetal bovine serum for 24,48,or 72 hours exhibited steatosis.FTO and FoxO1 mRNA were increased in the high-fat group compared with the normal group (P <0.01).The expression levels of FTO and FoxO1 mRNA were the highest at 48 hours (P <0.05).Conclusions A high-fat diet leads to higher expression of FTO,phosphorylation of FoxO1,and decreased phosphorylation of AMPK.These results suggest that the interactions between FTO and FoxO1 are closely related to the pathogenesis of NAFLD.