1.The study of chronic angio-complications in diabetes mellitus and impared glucosetolerance patidents were diagnosticated newly
Lian-Ping WANG ; Na LU ; Zhao-Hui ZHU ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(12):-
Objective To investigate the chronic angio-complications of diabetes mellitus(DM)and impared glucosetolerance(IGT)patients were diagnosticated newly.Methods 46 patients with diabetes mellitus and 97 pa- tients of impared glucosetolerance were chosen in the study,and 35 patients were chosen as normal glucose tlerance group.Some biochemical criterion,carotid artery intima-media thickness and plaque condition were measure.Results The group of IGT contract coronary heart disease is 62.9 %,cetebrovascular disease is 20.6%,carotid artery atheromatosis is 50.5 %,the group of DM contract coronary heart disease is 65.2%,cerbrovascular disease is 26,1%,carotid artery atheromatosis is 69.6%,it have statistics significance compared with control group(P
2.Investigation on Degree of Familiarity of GCP in Guang’anmen Hospital of China Academy of Chinese Medical Sciences
Lanying ZHAO ; Yu DONG ; Fengmei LIAN ; Jing WANG ; Ping LIU ; Beisong LIU ; Yong LI ; Ping WU
Chinese Journal of Information on Traditional Chinese Medicine 2015;(7):1-3
Objective To investigate the mastery degree of GCP (Good Clinical Practice) in Guang’anmen Hospital of China Academy of Chinese Medical Sciences (hereinafter referred to as“Guang’anmen Hospital”). Methods Totally 338 clinical researchers, covering 18 clinical professional sections and medical clinical trial institutions, in Guang’anmen Hospital with both qualification of clinical trials and GCP certificate were investigated in 23th-27th June 2014. The investigation was in the written answer sheet form, including four noun explanations and 36 multiple choice questions, which were related to GCP. Results 338 researchers could accurately explain the concepts of 4 nouns, and 57 (16.86%) researchers could do all multiple choice questions correctly. 141 (41.72%) researchers chose 1 wrong answer and 89 (26.33%) researchers chose 2 wrong answers. 39 (11.54%) researchers failed to answer 3-4 questions. Only 12 (3.55%) researchers failed to answer 5 or more questions. Conclusion The mastery degree of clinical researchers with qualification of clinical trials and GCP certificate in Guang’anmen Hospital is satisfied. In the future, pertinence and diverse training should be strengthened, in order to improve the overall level of the mastery degree of GCP.
3.Practice and thought for quality control of drug clinical trial institution for clinical trials.
Ting ZHAO ; Ping WU ; Yong LI ; Feng-mei LIAN ; Ping LIU ; Jie QIAO
China Journal of Chinese Materia Medica 2014;39(24):4880-4882
The quality control of new drug cilnical trial is the effective guaranty for the pharmaceutical safety and effective after available on market. Enhancing the inspection and quality control of new drug clinical trials provide the crucial importance to achieve a persistent profitable standard. This paper mainly discussed the problems of current clinical trials based on annual check of drug clinical trial institution.
Clinical Trials as Topic
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Drug Evaluation
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Health Facilities
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Humans
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Quality Assurance, Health Care
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Quality Control
4.The Mutagenesis and Screening of Carotenoid Mutant in Hydrogen-producing Photosynthetic Bacteria
Jun ZHAO ; Jian-Ke LIAN ; Chun-Gui ZHAO ; Su-Ping YANG ;
Microbiology 1992;0(01):-
Mutagenesis and screening of hydrogen-producing photosynthetic bacteria,Rhodobacter sp.R7 strain,was investigated by using the combination mutation of ultraviolet ray and LiCl and layer plating methods.A carotenoid mutant named R726 strain was obtained.The plate phenotype properties in carotenoid mutant were different from that of parent strains.Living cells spectra showed that absorption peak of 550 nm was appeared in carotenoid mutant,but not in parent strain.The absorption spectra of extraction of pigment further confirmed the difference of carotenoid composition between the mutant and parent strains.The result of TLC on silica gel plate showed that mutant has a lack of yellow carotenoid composition which occurs in parent strain.H_2 productivity and biomass in carotenoid mutant was higher than that of parent strain.These results revealed that mutant has a modified carotenoid biosynthesis pathway.
5.The Role of Transforming Growth Factor-?_1 in the Proliferation of Cardiac Fibroblasts Induced by Chymase
Xiao-Yan ZHAO ; Lian-You ZHAO ; Qiang-Sun ZHENG ; Xiao-Long LU ; Yan-Ping HE ;
Chinese Journal of Hypertension 2007;0(05):-
Objective To investigate the effect of chymase on the proliferation of rat cardiac fibroblasts (CFs) and the role of transforming growth factor-?1 (TGF-?_1).Methods Cultured CFs of neonatal SD rats were isolated by trypsinization.Cell number and DNA synthesis were evaluated by MTT assay (A_(490) value) and [~3H]-deoxythy- midine [~3H]-TdR incorporation.The mRNA expression of TGF-?_1 in CFs was determined by RT-PCR.Results Chymase increased CFs numbers and [~3H]-TdR incorporation in a dose-dependent manner.The A_(490) value of CFs stimulated by 15,30 and 60 ng/mL chymase was 0.263?0.033,0.348?0.031 and 0.387?0.026,respectively, which were all significantly higher than that of control (0.201?0.019,P
6.The value of MRI in monitoring incomplete healing of the uterine incision after abdominal delivery
Xing ZHONG ; Ji ZHANG ; Ping CUI ; Xiaoer ZHAO ; Hui WU ; Hu LIAN
Journal of Practical Radiology 2016;32(12):1906-1908
Objective To explore MRI manifestations of incomplete healing of the uterine incision after abdominal delivery.Methods Nine patients with clinical suspected incomplete healing of the uterine incision after abdominal delivery underwent cavitas pelvis MRI scans with 3.0T MRI.Results According to the characteristics of the MRI images,healing conditions of the uterine incisions were divides into 2 groups.GroupⅠwas showed that the uterine incision healed well,the uterine junctional zone and myometrium were continuous,and the incision scar was linear low signal intensity on T2 WI (2 cases,22%).GroupⅡwas showed that the uterine incisions healed incompletely,the uterine junctional zone and myometrium were discontinuous,and the myometrium edema was in some cases with high signal intensity on T2 WI (7 cases,78%).Conclusion MRI could directly displays incomplete healing of the uterine incision after cesarean section,provide the basis for clinical diagnosis and treatment.
7.Correlation analysis of blood trimethylamine N-oxide level with heart failure and its influencing factors in patients undergoing maintenance hemodialysis
Wenling YANG ; Lian HE ; Yumei LI ; Weiwei ZHAO ; Wenjing CHEN ; Ping YANG ; Xianhua ZHANG ; Aihua ZHANG
Chinese Journal of Nephrology 2021;37(2):121-129
Objective:To investigate the level of trimethylamine N-oxide (TMAO), one of gut metabolites, in patients undergoing maintenance hemodialysis (MHD) accompanied by congestive heart failure (HF) and its influencing factors.Methods:Those patients of 18-75 years old who received three or more times of hemodialysis sessions per week for three months or longer during Nov 2018 and Mar 2019 were enrolled. Those attended health checkup at the same time without obvious kidney abnormality served as non-kidney disease controls. Serum TMAO concentrations were measured using high-performance liquid chromatography electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS). The levels of TMAO were compared between patients on hemodialysis and controls, between those with heart failure and without heart failure using logrithmically transformed TMAO (lnTMAO). Linear regression analysis was performed to investigate factors influencing TMAO levels.Results:A total of 195 patients undergoing MHD and 40 controls were enrolled. Among them, 30 hemodialysis cases (15.4%) manifested as heart failure symptoms and/or left ventricular ejection fraction less than 50%. Males accounted for 67.2% in patients on hemodialysis and 37.5% in controls ( χ2=12.426, P<0.001) respectively, while the median ages in both groups were 62.0(48.0, 71.0), 45.0(33.3, 55.0) years old respectively ( Z=5.685, P<0.001). TMAO concentrations were significantly higher in patients on hemodialysis than controls [5.54(3.84, 8.91) mg/L vs 0.17(0.11, 0.30) mg/L, after log transformed, t=21.687, P<0.001]. However, there was no statistically significant difference between those with heat failure and those without in male [63.3% vs 67.9%, χ2=0.238, P=0.626], age [64.5(56.8, 71.0) years old vs 61.0(47.0, 72.0) years old, Z=0.894, P=0.372] and TMAO [5.17(3.30, 9.46) mg/L vs 5.57(3.87, 8.95) mg/L, after log transformed, t=-1.537, P=0.135]. Multivariate linear regression analysis demonstrated that in all the participants, serum urea was the main risk factor for TMAO [standardized coefficient ( SB)=0.483]. lnTMAO=0.078×[serum urea(mmol/L)]+0.001×[serum creatinine (μmol/L)]-0.002×[serum uric acid (μmol/L)]-0.003×[platelet (×10 9/L)]+0.014×[age (years old)]+0.344 (if diabetic)-1.266. While in those undergoing MHD, ultrafiltration volume had the most significant effect on TMAO levels ( SB=0.279). lnTMAO=0.249×[ultrafiltration volume(L)]+0.059×[serum albumin (g/L)]+0.008×[age (years old)-0.526 (if heart failure existed)-1.865. Conclusions:MHD patients have gut dysbiosis, while those hemodialysis patients accompanied by heart failure may have peculiar gut microbiota which induces lower serum TMAO levels than those without heart failure after adjusting for multiple related factors. Serum TMAO levels may be associated with ultrafiltration volume and nutrition status etc.
8.Construction of an Inducible Expression and Secretion System for Neutral Protease in Bacillus subtilis
Min ZHANG ; Cong ZHAO ; Lian-Xiang DU ; Fu-Ping LU ; Xing-Wang CAI ;
China Biotechnology 2006;0(03):-
The promoter and signal peptide sequence of sacB gene (sacR gene) has been amplified by PCR.An inducible expression and secretion vector pHP13SN has been constructed with this amplified sequence,which was ligated with the pro-peptide and mature peptide of neutral protease gene on the vector pHP13.Transforming Bacillus subtilis DB104 with the vector pHP13SN, and the recombinant strain DB104(pHP13SN) can be got.The neutral protease gene has been expressed by the inducement of sucrose and the regulation of sacR,and the production has been secreted with bioactivity.
9.Study on Heterologous Expression of Penicillinase Gene and the Penicillinase Degrading Residual Penicillin in Milk
Hong-Kun ZHAO ; Lian-Xiang DU ; Yu LI ; Xiao-Juan WANG ; Fu-Ping LU ;
Microbiology 1992;0(06):-
To obtain a number of penicillinases and degrade penicillin in milk by using the penicillinases,the gene encoding penicillinase was amplified by PCR from Bacillus cereus ATCC10987,cloned into pET28a(+) ,transformed into E. coli BL21;analysis of SDS-PAGE and penicillinase activity of the recombinant protein were done under induction of IPTG and the result showed that the maximum penicillinase activity reached 480 U/mL;the purity of penicillinase purified by Ni2+ Purification System was more than 90%;the immobilized penicillinases were obtained by sodium periodate method and the residual quantity of penicillin in milk(containing 0.5 U penicillin G/mL) was less than 4 ppb after degraded by the immobilized penicillinase.
10.Interventional effects of biscuits fortified with different doses of vitamin A on the vitamin A status in children of 3-6 years old
Mei ZHAO ; Yong ZHAO ; Tingyu LI ; Rong WANG ; Ping QU ; Xuemei LIAN ; Chunting MAO ; Ying DAI ; Youxue LIU
Chinese Journal of Tissue Engineering Research 2006;10(16):158-161
BACKGROUND: Vitamin A deficiency disorders (VADD) is a healthy problem of children in the world, especially in the west of China and remote areas, and the nutritional intervention is needed.OBJECTIVE: To compare the improved effects of biscuits fortified with three different doses of vitamin A on the vitamin A status in children aged 3-6 years and explore ap ideal dose of vitamin A supplement for preventing VADD.DESIGN: Randomized controlled observation.SETTING: Health Surveillance Institute, Chongqing Municipal Health Bureau; Staff Room of Nutrition and Food Hygiene, College of Public Health, Chongqing University of Medical Sciences; Center for Children Nutrition, Children's Hospital, Chongqing University of Medical Sciences.PARTICIPANTS: The investigation was done between March and December 2002. 753 children aged 3-6 years from 8 kindergartens in Banan district of Chongqing city were enrolled with the agreement of their guardians. They were divided randomly into 4 groups: 30% recommended intake group, 100% recommended intake group, 20 000 international unit (IU) and 200 000 IU groups.METHODS: ① The biscuits fortified with 30% recommended intake of vitamin A (500 IU) were once given to people of the 30% recommended intake group (177 cases) every day. ②The biscuits fortified with 100% recommended intake of vitamin A (1666 IU) were once given to people of the 100% recommended intake group (173 cases) every day. ③The biscuits fortified with 20 000 IU of vitamin A were once given to people of the 20 000 IU group (209 cases) every week. ④The soft gelatin capsule with 200 000 IU of vitamin A were once given to people of the 200 000 IU group (194 cases).Height, body mass, serum retinal, prealbumin, haematoglobin and retinal binding protein of all children were measured before intervention and after intervention for 3 months. Above indexes were rechecked after supplement for 9 months in 87 children of 30% recommended intake groupMAIN OUTCOME MEASURES: ①Prevalence rate of VADD before in-tervention and after intervention for 3 months in children of every group.② Serum retinal, serum prealbumin, serum retinal binding protein,haematoglobin, height and body mass of children before intervention and after interventional for 3 months in every group.RESULTS: Because of lose of samples and detective technology, only 580 children' examination results were got by rechecking. ①Comparison of the prevalence rate of VADD of children in every group: Three months supplementation later, the prevalence of VADD in every group all decreased sig nificantly [1.48%,1.42%,1.21%, 2.16% ;6.78%,6.54%,8.61%,8.25%(χ2=3.86-8.57, P < 0.05-0.01 )]. ②Comparison of serum retinal, serum prealbumin, serum retinal binding protein, haematoglobin, height and body mass of children of every group: After supplement for 3 months, except prealbumin and haematoglobin in the 30% recommended intake group ,other indexes in each group all increased significantly (t=2.52-37.44, P< 0.05-0.01 ). The increase of serum vitamin A in the 20 000 IU group was larger than that in the other groups (F=4.62,P< 0.01 ). The increases of haematoglobin, prealbumin and height in the 30% recommended intake group were less than those in the other groups (F=5.04-7.78 ,P < 0.01 ).After supplement for 9 months, the increases of haematoglobin and prealbumin in the 30% recommended intake group were larger than those in the other groups (F= 11.62,10.21 ,P < 0.01). The increase of serum retinal was still lower than that in the 20 000 IU group (F=4.21 ,P < 0.01 ).CONCLUSION: Supplement with biscuits fortified with 3 different doses of vitamin A and capsule with 200 000 IU of vitamin A can improve obviously the nourished status of vitamin A and the level of ferrohemoglobin, in which 30% recommended intake and 100% recommended intake have small risk, and everyday supplement can maintain stably the level of vitamin A. That may be suitable for the long-term supplement for children, and the effect of 30% recommended intake was better than that of 100% recommended intake.