1.THE EFFECT OF CHIP ON THE BIOSYNTHESIS OF DNA, RNA, AND PROTEIN OF EAC CELLS IN VITRO
Chinese Pharmacological Bulletin 1986;0(05):-
The effect of CHIP [cis-dichloro-trans-dihydroxy-bis-isopropy-lamine platinum (Ⅳ)] on the biosynthesis of DNA, RNA, and pro-tein of Ehrilch ascites carcinoma ( EAC ) cells in vitro was studied. 3H-TdR, 3H-UR, 3H-Leu were used as precursors of cellular macro-molecules to study the effect of CHIP on the biosynthesis,with CDDP [cis-dichlorodiammineplatitinum (Ⅱ)] as a positive control. The experimental results showed that CHIP, similar to CDDP, inhibited the biosynthesis of DNA, RNA and protein, and has a strong antitumor activity. The inhibitory effect on DNA biosynthesis lasted 40 hours indicating that CHIP might induce permanent damage in DNA template and thus reduced the mitotic division of tumor cells. Furthermore, in contrast to the general view, the in vitro experimental results showed that CHIP, a tetravalent platinum coordination compound, exerted its antitumor activity directly in vitro.
2.Construction of the quality evaluation system of master academic dissertation of post graduates major in professional clinical medicine
Yang YANG ; Shufen YANG ; Yu FU ; Qichao NIU
Chinese Journal of Medical Education Research 2016;15(12):1205-1209
Objective To construct an scientific quality evaluation system of master academic dis-sertation in post graduates majored in professional clinical medicine, which provides the basis for measuring the level of scientific research and the quality of graduates. Method a preliminary evaluation index system of master academic dissertation in post graduates majored in professional clinical medicine was established by literature review, expert interview and panel discussion, and the given indexes were conducted on the clinical and medical education experts by a two-round Delphi methods. Result According to the character-istics of the graduate training, combined with expert opinion, 6 primary indexes, 18 secondary indexes and 42 third-level indexes were contained. With calculating the weight of all levels of indicators, the final quality evaluation system of master academic dissertation in post graduates majored in professional clinical medicine was built. Conclusion The system is a highly scientific index system and reliable, which can reflect and emphasize the master's requirements and characteristics of the training, so as to be used as a measuring stan-dard for evaluating master academic dissertation in post graduates majored in professional clinical medicine.
3.The literature research on current residency standardized training in China
Qichao NIU ; Shufen YANG ; Bing HAN ; Yang YANG
Chinese Journal of Medical Education Research 2014;13(12):1267-1271
Objective To sum up the status and existing problems of standardized training of resident physician in China,and to promote residency standardized training.Methods With essayas retrieving items,resident + standardization training as the search term,all relevant papers published in CNKI from January 2004 to January 2014 with a title containing residency standardized training were reviewed.By means of literature analysis,the literature in 8 aspects was classified including the year of publication,status of journal,training base selection conditions,training objects and training time,content,specialist fields,management,assessment methods and shortages.Excel was used to make descriptive analysis of the results.Results After elimination,we took 152 papers as experimental group.In detail,12 literatures about training base selection conditions demonstrated that the level and type of hospital was the main criteria for training base;28 literatures about training objects and training time indicated that trainees were oriented to the pattern of 5+3,the latitude of PhD and Masters could be decreased properly; 36 literatures about training content focused on clinical skills and expertise.Only 19 literatures was concerned with specialist fields,which needed enriching.12 articles about management implemented management of supervisor responsibility system.22 literatures about the assessment method recommend that priority should be given to clinical skills examination to explore the hospital problems of resident standardization training.Conclusion The standardized training of resident physician has been carried out in China,but there are still some problems which need to be further improved.
4.Clinical value of human kallikrein 2 detection on patients with prostate cancer
Jierong XIAO ; Ling MIN ; Subing YANG ; Qichao ZHANG
International Journal of Laboratory Medicine 2016;37(9):1186-1187
Objective To study the clinical value of human kallikrein 2 detection on the early diagnosis ,prognosis and therapeu‐tic means of patients with prostate cancer .Methods 25 patients with prostate cancer and 25 patients with benign prostatic hyper‐plasia who were treated in affiliated hospital of Guangzhou Medical University between January 2015 and December 2015 were se‐lected as research objects .Their human kallikrein 2 and prostate specific antigen level were detected by ELISA and RIA .25 cases of prostatic cancer after operation of our hospital in synchronization were randomly selected as research objects and their human kal‐likrein 2 level was detected and analysed .All the data was modeling processed by SPSS21 .0 .Results Human kallikrein 2 level of PCa group ,BPH group and healthy group was(75 .5 ± 24 .5)ng/L ,(23 .3 ± 5 .8)ng/L and(22 .2 ± 3 .56)ng/L respectively ,which of PCa group was higher than that of BPH group and healthy group .The difference had statistical significance(P<0 .05) .The specific and accuracy of hK2 detecting PCa was 89% and 78% .Compared with before operation[(80 .2 ± 24 .5)ng/L] ,hK2 level of 25 pa‐tients with prostate cancer[(34 .4 ± 10 .5)ng/L] significantly decreased and the difference had statistical significance(P<0 .05) . Conclusion On diagnosing prostate cancer ,human kallikrein 2 can improve specific detection ,reduce unnecessary detected rate and provide the new direction for early clinical detection ,prognosis and therapy .It deserves further promotion .
5.Analysis of patient radiation dose from nuclear medicine examinations
Feng WANG ; Wei ZHAO ; Qichao ZHAO ; Yan ZHANG ; Puyun CHEN ; Yang FAN ; Zhi YANG
Chinese Journal of Radiological Medicine and Protection 2015;35(9):705-708
Objective To measure and analyze the radiation dose for patients undergoing nuclear medicine examination,and to characterize radiation exposure of patients by using the estimated effective dose.Methods Patients undergoing nuclear medicine examinations were classified and the radiation doses from radiopharmaceuticals to patients were measured and calculated.Meanwhile,radiation exposure from computed tomography (CT) procedure was calculated on the basis of CT protocols and patients' information.The effective doses to patient from both the radiopharmaceutical and CT scan radiation were calculated and the factors influencing patient radiation doses were analyzed.Results For the patients undergoing positron emission tomography-computed tomography (PET-CT) examination,the average effective doses from positron radiopharmaceutical 18F-fluorodeoxyglucose (18F-FDG),18F-fluoro-l-thymidine (18 F-FLT),11C-choline,11 C-methylmethionine (11 C-MET) and 11 C-acetate (11 C-Ac) were (5.06 ± 0.73),(4.74±1.29),(1.71 ±0.05),(3.18±0.69) and (1.08±0.19) mSv,respectively.CTscan caused average effective dose was (8.80 ± 0.58) mSv.If a full diagnostic CT investigation was performed,the effective dose might be up to 27 mSv.Whereas for emission computed tomography (ECT) examinations,the average effective dose to the patients irradiated by single photon radiopharmaceutical 99Tcm-methylenediphosphonate (99Tcm-MDP),99Tcm-macroaggregated albumin (99Tcm-MAA),99Tcm-diethylentriaminpentaacetic acid (99 Tcm-DTPA),99Tcm-methoxyisobutyl isonitrile (99 Tcm-MIBI) and 99Tcm-pyrophosphate (99Tcm-PYP) were (4.63 ± 0.01),(1.71 ± 0.01),(1.18 ± 0.01),(7.19 ± 0.03) and (4.18 ± 0.01) mSv,respectively.Conclusions Radiopharmaceutical irradiation caused effective dose to the patients undergoing nuclear medicine examinations is from 1.08 to 7.19 mSv,while CT scan cause average effective dose is 8.80 mSv in PET-CT examination.
6.Effects of C-reactive protein on the expression of high-molecular-weight adiponectin and assembly of adi-ponectin
Yuanxin LIU ; Houxia SHI ; Cuiping LIU ; Su WANG ; Qichao YANG ; Dan JIANG ; Ling YANG ; Guoyue YUAN
Journal of Medical Postgraduates 2016;29(3):230-234
[Abstract ] Objective C reactive protein (CRP), an in-flammatory maker, increased significantly among diabetes mellitus and other metabolic diseases.Meanwhile, adiponectin plays a vital role in anti-atherogenic, anti-inflammatory and anti-diabetic poten-tials.Further, it decreased in diabetes mellitus.To investigate the effects of C-reactive protein in the expression of high-molecular-weight adiponectin ( HMWA) and adiponectin multimerization. Methods The fully differentiated 3T3-L1 cells were respectively treated with 50μg/mL CRP for 0 h、6 h、12 h and 24 h , and different doses of CRP with 0μg/mL、5μg/mL、25μg/mL、50μg/mL for 24 h.The expres-sion of HMWA was further detected by Western blot.Additionally,
the mRNA expressions of adiponectin assembly related genes ( Ero1-L、DsbA-L、ERp44 ) were detected by Real time PCR after 50μg/mL CRP treatment for 24 h. Results After 24 h treatment, 25μg/mL CRP and 50μg/mL CRP resulted in a substantial reduction ( [70 ±7]%vs [44 ±7]%, P<0.05) while 5μg/mL CRP revealed no change.With the dose of 50μg/mL CRP treated, the ex-pression of HWMA were both inhibited after the 12 h and 24 h CRP treatment ([71 ±6]%vs [48 ±11]%, P<0.05), but for the 6 h CRP treatment group, HWMA remained unchanged.Additionally, CRP inhibited Ero1-L(86 ±10)%and DsbA-L(72 ±6)%gene expression and upregulated the expression of ERp44(141 ±23)%. Conclusion CRP decreases HMWA expression in a dose and time-dependent manner and inhibits the multimerization of adiponectin, thus weaken the benefits of adiponectin in diabetes.
7.Exploration of humanities practice skill training for seven-year program clinical medicine students by teaching hospital
Lingna MA ; Shufen YANG ; Mei YIN ; Fenglian YUE ; Dexin MENG ; Qichao NIU ; Zhitao CHEN
Chinese Journal of Medical Education Research 2013;(4):348-351
Medical education should combine clinical professional skills with humanities skills,integrate humanities knowledge into vocational education.Taking 2008 grade seven-year program clinical medicine students in the 2nd affiliated hospital of Harbin Medical University as fostering object,we made researches into students' understanding of doctor-patient relationship before practice and their mastering of skills.Through conducting questionnaire,we got to know the effect of humanities practice skill training for seven-year program clinical medicine students.Meanwhile,we compared students' self evaluation results before and after training,discussed on how to improve medical students' communication skills,cultural skills and the reform direction in an aim to guide students to transit from students to clinical doctor.
8.Progress of T lymphocyte subsets in breast cancer
Siyuan ZHU ; Rui YANG ; Nankun QU ; Anqi YAO ; Qichao KONG ; Fusheng WANG
Cancer Research and Clinic 2021;33(3):225-229
With the increasing incidence of breast cancer, the relationship between tumor and immune function has attracted more and more attention. This article reviews the relationship between breast cancer and T lymphocyte subsets, in order to explore the changes of immune function before and after operation in breast cancer patients, so as to select appropriate surgical methods, radiotherapy, chemotherapy and immunotherapy for the patients.
9.Correlation study of serum betatrophin level and urinary albumin-to-creatintine ratio in patients with type 2 diabetes
Haoying XUE ; Xiafei HONG ; Su WANG ; Weiyun QIAN ; Qichao YANG ; Jialiang DENG ; Suxian MA ; Shuping YU ; Dan JIANG ; Ruirong PAN ; Ling YANG ; Dong WANG ; Guoyue YUAN
Journal of Medical Postgraduates 2017;30(4):389-393
Objective There are few researches for the serum betatrophin level and diabetic nephropathy (DN) recently.The aim of this study was to investigate the change of serum betatrophin level and the correlation of serum betatrophin and urinary albumin-to-creatintine ratio (UACR) in patients with type 2 diabetes mellitus (T2DM).Methods A total of 150 Chinese subjects from Mar 2013 to Jul 2016 were enrolled in the study, including 90 patients with type 2 diabetes and 60 healthy controls.According to the level of UACR, the diabetic patients were divided into two groups:normal UACR group (UACR<30 mg/g, n=60) and abnormal UACR group(UACR>30 mg/g, n=30).Serum betatrophin was measured by enzyme linked immunosorbent assay (ELISA).UACR was measured by turbidimetric inhibition immune assay.Blood glucose blood lipid were measured simultaneously.Results The serum betatrophin level was significantly higher in abnormal UACR group than that in normal UACR group[677.37±59.02 vs 486.13±41.22 pg/mL, P<0.05];Serum betatrophin level in T2DM patients was positively correlated with age (r=0.246), waist hip ratio (WHR) (r=0.240), fasting blood glucose (FPG) (r=0.234), 2 hour plasma glucose (2hPG) (r=0.363), glycosylated hemoglobin (HbA1c) (r=0.346), fasting insulin (FINS) (r=0.249), insulin resistance index (HOMA-IR) (r=0.309), blood urea nitrogen (BUN) (r=0.223), creatinine (CREA) (r=0.277) and UACR (r=0.244) (P<0.05),and negatively correlated with glomerular filtration rate (GFR) (r=0.308) (P<0.01).Serum betatrophin level in normal UACR group was positively correlated with age, HbA1c and UACR (P<0.05);Serum betatrophin level in abnormal UACR group was positively correlated with WHR (r=0.504), 2hPG (r=0.600), HbA1c (r=0.449), HOMA-IR (r=0.395) (P<0.05).The WHR, HbA1c, HOMA-IR and GFR were the influential factors of the serum betatrophin level.Conclusion The level of serum betatrophin was significantly increased in T2DM patients with albuminuria, which suggests that the betatrophin might play an important role in the pathogenesis of DN.
10.The current situation and development of medical humanistic literacy education in medical colleges at home and abroad
Yang YANG ; Shuang LI ; Yajun WU ; Qichao NIU
Chinese Journal of Medical Education Research 2021;20(12):1387-1391
Medical humanistic literacy education is important in modern medical education. In the United States, Britain, Japan and other countries, many medical schools have incorporated medical humanistic literacy education into compulsory courses and attached great importance to its value. However, the humanistic literacy education in domestic colleges has not yet formed a systematic development. This article analyzes the current status and deficiencies of domestic medical humanistic literacy education by comparing the development stages and characteristics of foreign medical humanistic literacy education. This paper puts forward reasonable suggestions on the integration of medical humanistic literacy curriculum from three aspects: medical education structure and modes, teaching methods and the importance attached to medical literacy education, aiming to provide a reference for our country's reform of medical education.