1.EFFECT AND MECHANISM OF ARGININE VASOPRESSION (AVP) ON SECRETION OF VASCULAR ENDOTHELIAL GROWTH FACTOR (VEGF) BY ENDOTHELIAL CELLS
Zhongyan LI ; Dan CHEN ; Jixian YE
Medical Journal of Chinese People's Liberation Army 2001;0(09):-
To investigate the effect of arginine vasopression (AVP) on the secretion of vascular endothelial growth factor (VEGF) by vascular endothelial cell (VEC). VEC of human greater omentum artery were isolated and cultured. The concentrations of VEGF and activity of protein kinase C (PKC) in the culture medium were measured. Results indicated that after the cells were incubated with 1?10 -9~1?10 -7mol/L AVP for 6 hours, the concentration of VEGF and activity of PKC were markedly increased compared to control (P
2.The prevalence of metabolic syndrome in Liaoning province
He LIU ; Zhongyan SHAN ; Xiaochun TENG ; Yaxin LAI ; Yanyan CHEN
Chinese Journal of Endocrinology and Metabolism 2010;26(3):209-210
A total of 3 431 subjects aged 18 years or over from Liaoning province were involved in this study.The prevalence of metabolic syndrome(MS) was 19.50%,being 19.79% in men and 18.44% in women, according to the standard of Chinese Diabetes Society in 2004.Villages had the highest prevalence of MS in women,while cities had the lowest;towns had the highest prevalence of MS in men,while villages had the lowest.The prevalence of MS was increased with both aging and income.The peak of MS is turning to the developing district.
3.Gender Differences in Clinical Features of Acute Type 1 Diabetes Mellitus
Jing LI ; Bing QIU ; Ying CHEN ; Zhongyan SHAN
Journal of China Medical University 2010;(1):54-57,60
Objective To analyze whether there are any gender differences in clinical features of acute type 1 diabetes mellitus.Methods Clinical data of 193 patients with acute type 1 diabetes mellitus were collected in our hospital from 2002 to 2007,and subjected to statistical analysis by SPSS.Results The ratio of male to female in all the subjects was 1.6:1.There was no significant gender difference in such clinical aspects as age,fasting blood glucose level,HbAlc concentration,positive percentage of serum autoantibodies against pancreatic islet or morbidity of diabetic neuropathy.In contrast to the males,the onset age was significantly younger,the diabetic duration longer,fasting serum C peptide level lower and the incidence of ketotic acidosis higher in female patients.The patients with onset age less than 14 years (puberty) did not show any significant gender differences in the above-mentioned clinical aspects.Among those with onset age more than 14 years,the females had significantly longer duration and lower fasting serum C peptide level than males.The male patients with onset age more than 14 years had significantly higher fasting serum C peptide level than those less than 14,whereas it was the same for total positive percentages of pancreatic islet autoantibodies and morbidity of diabetic neuropathy in females.Conclusion Gender differences may exist in some clinical features of type 1 diabetic patients with acute onset after puberty, which may partially result from the effects of sex hormones.
4.Regulation of ‘Tiao Gan Fang Yao’ on neuroendocrine-immuno-function of bandage-stressed rats
Can YAN ; Zhongyan DENG ; Jian WANG ; Xiaoyi CHEN
Chinese Journal of Pathophysiology 1989;0(06):-
AIM: To investigate the regulation of ‘Tiao Gan Fang Yao’(TGFY) on neuroendocrine-immuno-function of bandage-stressed rat . METHODS:The stressed rat model was made by bandage. RIA was adopted to measure the function of hypothalamus-pitutary-adrenal gland axis (HPAA) of stressed rat. Meanwhile, the immunity of stressed rat and the regulation of TGFY were observed.RESULTS:Bandage stress increased the contents of serum corticosterone(CORT), and ACTH, and hypothalamus corticotropin releasing hormone ( P
5.Investigation in the relationship between the number of complaints from outpatients and the time or the outpatient amounts in a certain grade A tertiary hospital
Zhongyan LI ; Shuren CHEN ; Yuyan LIANG ; Mulian CHEN ; Fengyan WU ; Yuekui HE
Chinese Journal of Practical Nursing 2013;29(36):33-35
Objective To study the relationship between the number of outpatient complaints and the time or the outpatient amounts.Methods A retrospective analysis of 1289 cases of outpatients' medical complaints with basic records since 2009 in our hospital was carried out.The time regularity of the number of outpatient complaints,or the complaint rate was analyzed.And the correlation between the outpatient amounts and the number of outpatient complaints,or the complaint rate was also analyzed.Results In our hospital,the mean monthly number of outpatient complaints was (23.44±8.41)cases; the mean monthly outpatient account was (246 000±27 417)cases.The differences among monthly outpatient complaints,outpatient accounts and monthly complaints rate among every years were statistically significant.Within one year,the outpatient complaints numbers were lowest in February and January.And the outpatient complaints rate was low in November,January,February and December.There were statistically significant correlation between the monthly outpatient complaints and monthly outpatient accounts,and between the monthly outpatient complaints rate and monthly outpatient accounts.Conclusions There was time regularity in the outpatient complaints rates in one year.And there was certain correlation between the outpatient complaints rate and the outpatients' accounts.
6.The historical evolution of processed mirabilite in the formulation of Zixue san and its processing method
Chen ZHAO ; I Be ZHANG ; Jing DU ; Jianping YI
China Pharmacy 2022;33(6):764-768
Zixue san is a preparation in Chinese Pharmacopoeia ,and is a commonly used representative formula in Liangkai formulation. In the previous editions of Chinese Pharmacopoeia ,for the item of the formulation and preparation method of Zixue san,“mirabilite”“mirabilite(prepare)”“Xuanming powder ”and other different descriptions have been repeatedly modified and amended;the methods of preparation of mirabilite in the processing specifications of different provinces and cities are also different,causing effects in actual production. Therefore ,the author has researched the historical evolution of Zixue ,the formulation and preparation method of Zixue san in the previous editions of Chinese P harmacopoeia,and has expounded the change process of mirabilite,mirabilite(prepare),Xuanming powder in the item of formulation and preparation method of Zixue san. In addition ,the author compares Chinese Pharmacopoeia with the processing methods of mirabilite in the national and provincial processing specifications ,in order to provide a basis for the processing of mirabilite in the formulation of Zixue san.
7.Cross-sectional survey on healthcare-associated infection in Miao and Dong Autonomous Prefecture of Guizhou Province in 2014
Liyuan CHEN ; Zhongyan QIU ; Huai YANG ; Xia MU ; Yan XU ; Jing CHEN ; Tingxiu YANG ; Man ZHANG ; Man ZHANG ; Hongyan WU
Chinese Journal of Infection Control 2016;(1):10-14
Objective To investigate the current situation of healthcare-associated infection(HAI)in hospitals of Miao and Dong Autonomous Prefecture of Guizhou Province,and provide basis for formulating prevention and con-trol measures of HAI.Methods According to the unified plan of the National HAI Surveillance Network,26 hospi-tals in Miao and Dong Autonomous Prefecture of Guizhou Province were performed cross-sectional survey on HAI prevalence rate,antimicrobial use,and specimen bacterial culture rate.Results A total of 3 tertiary and 23 seconda-ry hospitals were investigated,7 799 inpatients were included,the prevalence rate of HAI was 2.54%(n =198), and case prevalence rate was 2.65% (n=205).HAI mainly distributed in intensive care unit (29.63%);the main infection site was lower respiratory tract (44.44%);HAI mainly caused by gram-negative bacteria,the major pathogens were Escherichia coli ,Pseudomonas aeruginosa ,and Klebsiella pneumoniae .The usage rate of antimi-crobial agents was 45.66%,secondary hospitals was higher than tertiary hospitals (53.65% vs 31 .14%,χ2 =148.53,P <0.001 ).74.02% of antimicrobial agents were for therapeutic purpose,19.77% for prophylaxis,and 6.21 % for both prophylactic and therapeutic application;81 .02% of patients received one agent,17.21 % received two,and 1 .77% received three and more agents;among patients who received antimicrobials for therapeutic as well as for both therapeutic and prophylactic purpose,only 29.37% were sent specimens for pathogenic detection.Conclusion The prevalence rate in this region is lower than national average level,antimicrobial usage rate is lower than national standard,management of key departments and key sites should be strengthened,antimicrobial agents,especially used in secondary hospitals should be used rationally.
8.Point prevalence of healthcare-associated infection and antimicrobial use in Buyi autonomous prefecture hospitals in Guizhou Province
Liyuan CHEN ; Zhongyan QIU ; Huai YANG ; Xia MU ; Yan XU ; Jing CHEN ; Tingxiu YANG ; Man ZHANG ; Man ZHANG ; Hongyan WU
Chinese Journal of Infection Control 2016;15(3):155-159
Objective To explore the status of healthcare-associated infection(HAI)in hospitals in Buyi autono-mous prefecture of Guizhou Povince,and provide basis for formulating HAI control measures.Methods A survey was conducted by combined methods of bed-side survey and medical record reviewing,prevalence rates of secondary and above hospitals in Buyi autonomous prefecture in Guizhou Province between September 10 and October 5,2014 were surveyed.Results 6 577 hospitalized patients should be investigated,6 541(99.45%)were actually investiga-ted.The prevalence rate and case prevalence rate of HAI were 1 .83% (n=120)and 1 .94%(n=127)respectively. The top three departments of HAI distribution were intensive care unit (26.32%),neurosurgery (6.10%),and neonatal intensive care unit(5.13%);the main infection site was lower respiratory tract(n=39,30.71 %),followed by skin-soft tissue (n=24,18.90%)and superficial incision (n=23,18.11 %).58 pathogenic isolates were detec-ted,gram-negative bacteria were the major pathogens (n=44),gram-positive bacteria and fungi were 10 and 3 iso-lates respectively.Antimicrobial usage rate at survey day was 42.12%,64.75% of which were for therapeutic, 26.83% for prophylactic,and 8.42% for therapeutic+prophylactic use;the percentage of mono-drug,two drugs combination,and three or more drugs combination use were 79.53%,19.89%,and 0.58% respectively;bacterial detection rate in patients receiving therapeutic as well as therapeutic+prophylactic antimicrobial use was 13.76%. Conclusion Survey on prevalence of HAI is helpful for understanding the current status of HAI,monitoring on HAI in key departments of hospital and key sites of patients should be strengthened to reduce the occurrence HAI effectively.
9.Chronic effects of excessive iodine intake on apoptosis of thyrocytes in Wistar rats
Wei CHEN ; Xiaochun TENG ; Zhongyan SHAN ; Chenling FAN ; Haixia GUAN ; Na MAN ; Yushu LI ; Yafie TONG ; Wei CHONG ; Weiping TENG
Chinese Journal of Endocrinology and Metabolism 2008;24(6):649-653
Objective To explore the chronic effects of mild and moderate iodine excess and iodine restriction on apoptosis of thyrocytes. Methods Wistar rats were exposed to 4 different doses of iodine: 4 μg/d (control), 6 μg/d (1.5 fold iodine excess), 12 μg/d (3 fold iodine excess), and 24 μg/d (6 fold iodine excess) for 1, 2, 4 and 8 months. Some rats treated for 8 months were fed with 4 μg/d iodine for another 3 months. Urinary iodine concentration was monitored by arscnic/cerium catalyzing spectrophotography. Apoptosis was determined by flow cytometry after Annexin V-FTTC staining and uhrastructure assessment under electronic microscope. Cell cycle kinetics was analyzed by flow eytometry after propidium iodine staining. Fluorescent measurement by DCFH-DA probe was used to determine the intracellular reactive oxygen species (ROS) level. Expressions of apoptic proteins were analyzed by flow cytometry and immunohistochemistry. Results Apoptotosis rate and ROS production in thyrocytes were significantly increased in 3 and 6 fold iodine excess groups after 4 months and 8 months (all P < 0.05), which was reversed with iodine restriction. 6 fold iodine exposure was proved to cause a reduction of cells in GOG1-phase (64% and 67% vs 80%, both P < 0. 05) and a concomitant accumulation in S-phase (5% and 6% vs 3%, both P <0.05) after 4 months and 8 months. Expressions of Fas, FasL and TRAIL proteins in 3 and 6 fold iodine excess groups after 8 months were increased by 2 to 4 times compared with control group and did not return to normal after iodine restriction. Bcl-2 and Bax remained constant. Positive correlations were observed among iodine amount, apoptosis rate and ROS level in 6 fold iodine excess group after 8 months (r = 0. 637-0.790, P < 0.01). Conclusion Chronic iodine excess results in thyrocyte apoptosis due probably to generation of ROS.
10. Recovery and Utilization of Alkaloids in Processing Wastewater of Aconiti Radix
Jian-ping YI ; Jing DU ; He MENG ; Yu-ming CHI ; Jia-fu CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2019;25(8):108-113
Objective: To optimize the recovery technology for 6 kinds of toxic alkaloids in the toxic wastewater from processing of Aconiti Radix with macroporous resin. Method:With the rates of adsorption and elution of benzoylmesaconine,benzoylaconine,benzoylhypaconine,mesaconitine,hypaconitine and aconitine as indexes,static and dynamic adsorption-elution tests were used to select the best one from 15 kinds of macroporous resin,and the recovery technology parameters of six toxic alkaloids in the wastewater from processing of Aconiti Radix were optimized. Result:D101 macroporous resin had a good adsorption and elution effect on 6 kinds of toxic alkaloids in the wastewater from processing of Aconiti Radix,its optimum technology conditions were as follows:each gram of macroporous resin could be used to treat processing wastewater from 4.3 g of Aconiti Radix,the sample loading speed was not higher than 3.0 mL·min-1,the resin column was eluted with 6 BV of 70% ethanol after removing impurities with 2 BV of water.The recoveries of benzoylmesaconine,benzoylaconine,benzoylhypaconine,mesaconitine, hypaconitine and aconitine were 98.03%,94.09%,96.53%,78.15%,85.40% and 70.57%,respectively. Conclusion:D101 macroporous resin can be used for detoxification treatment of processing wastewater of Aconiti Radix,at the same time,6 kinds of alkaloids are effectively recovered,which can solve the environmental problems and create certain economic benefits,and the optimized process conditions are stable and feasible.