1.Inhibitory effects of Zedoray Rhizome Abstracts on hepatic cell line HepG2 and their mechanisms
Chinese Pharmacological Bulletin 1986;0(06):-
Aim Curcumol and Zedoary Turmeric Oil (ZTO) were prepared to liposome, which were used to study the anti-hepatoma effect, and its mechanism that was expected to provide theoretical support for the clinic anticarcinomal use of Zedoray Rhizome Abstracts.Methods Curcumol and ZTO were prepared to liposome by mechanical diffusion and ultrasonic techniques.Proliferation of HepG2 cell in vitro was observed with curcumol and ZTO by MTT assay. Apoptosis of cells was observed by staining with Hoechst 33258/PI and laser confocal scanning microscopy (LCSM). Expression of COX-2 mRNA and VEGF mRNA of HepG2 cell was investigated by RT-PCR.Results Envelopment ratios of curcumol liposome and ZTO liposome were 86.2% and 74.5%,respectively.Curcumol and ZTO inhibited proliferation of HepG2 cell by MTT assay.Compared with control group, Curcumol and ZTO increased the apoptosis rate of HepG2 cell significantly (P
2.The roles of lipoprotein-associated phospholipase A2 in carotid artery atherosclerosis and ischemic stroke
International Journal of Cerebrovascular Diseases 2010;18(4):282-285
The lipoprotein-associated phospholipase A2 (Lp-PLA2), a subtype of the phospholipase A2 superfamily, is produced primarily by macrophages and lymphocytes. Lp-PLA2specifically hydrolyzes oxidized phospholipids on oxidized low-density lipoprotein particles,resulting in production of lysophosphatidylcholine and oxidized fatty acids. Lp-PLA2 is expressed in atherosclerotic plaques and in macrophages within a fibrous cap of unstable plaque.Studies haw shown that the plasma Lp-PLA2 activity increases significantly in patients with ischemic stroke, and Lp-PLA2 may become an independent risk factor for predicting ischemic cerebrovascular events. The selective Lp-PLA2 inhibitor can reduce the inflammatory response,enhance the stability of plaques, and inhibit the formation of atherosclerotic plaques, and may become a new class of drugs for preventing the formation of atherosclerotic plaques.
3.Clinical Observation on 42 Cases of Perennial Allergic Rhinitis Treated by Sheti Zhiqiu Granules
Shunlin PENG ; Qu ZHONG ; Xiaohui YUAN
Journal of Traditional Chinese Medicine 1992;0(11):-
0. 05); The long-term effective rate was 84. 21% in the treatment group and 54. 55% in the control group with a significant difference between the two groups (P
4.Technical Condition for Semi - bionic Extraction of Plumula Nelumbinis by Homogenous Design
Xiaohong YUAN ; Ruizhi ZHAO ; Xiaohui QIU
China Pharmacy 2005;0(21):-
OBJECTIVE: To optimize the extraction conditions of plumula nelumbinis. METHODS: The semi - bionic extraction (SBE) conditions were optimized by homogeneous design while total alkaloids and dry extract were adopted as markers. Factors of extraction time, solute quantity and the pH values were evaluated for their effects on extraction process. RESULTS: Optimal parameters were as follows: plumula nelumbinis was extracted in water 8 times as much as it for 3 times; the pH values of the water for the 1st, 2nd and 3rd decoctions were 5.0,6.0 and 8.0, respectively; the boiling lasted 4 hours. CONCLUSION: The method prouides theoretical reference for the extraction plumula nelumbinis.
5.Application of LBL combined with PBL in endocrinology teaching practice
Xinlu YUAN ; Xiaohui ZHU ; Shiwei CUI
Chinese Journal of Medical Education Research 2013;(9):930-932,933
Objective To investigate the feasibility and superiority of the lecture based learning (LBL)combined problem-based learning (PBL)for endocrinology teaching practice. Methods Totally 150 clinic medical undergraduates were randomly divided into three groups:LBL group (n=50),PBL group (n=50)and LBL+PBL group (n=50). Questionnaires,written and oral tests were employed to evaluate the teaching effect. ANOVA was used to compare the indicator scores and chi-square test was used to compare grades and passing rate. Results Teaching efficiency,mater of knowledge,capabilities of analysis,teaming and collaboration ability and medical diagnosis thinking cultivation were better in LBL and PBL group than in the other two groups. There were statistical differences in total score(F=4.69, P=0.010)and passing rate(χ2=8.94,P=0.030)among three groups. Conclusions LBL+PBL guarantee the teaching quality and cultivate the comprehensive quality of students; therefore it is superior to LBL and PBL.
6.The glycemic control in Chinese type 2 diabetic out-patients receiving oral antidiabetic agents and the efficacy and safety of optimized modified-release gliclazide treatment
Zhenfang YUAN ; Xiaohui GUO ; Yan GAO
Chinese Journal of Endocrinology and Metabolism 2009;25(3):282-285
Objective To evaluate the current state of glycemie control in Chinese patients with type 2 diabetes mellitus who have received oral antidiabetic agents in the out-patient clinic,and the efficacy and safety of optimized regiments of gliclazide modified-release tablets (Diamicron MR, SERVIER, Tianjin) in patients with failed glycemic control (HbA1c 6.5%). Methods The patients with type 2 diabetes were enrolled from 54 hospitals in more than 20 cities and received long-term (more than 3 months) oral antidiabetic agents. HbA1c was measured and the success rate of HbA1c reduction was evaluated. The patients who failed to achieve glycemic control (HbA1c 6. 5%) and received daily multiple-dosing insulin secretagogues were provided with the optimized treatment regimen, consisting of replacing daily multiple-dosing insulin secretagogues with single-dosing gliclazide sustained-release tablets. Clinical efficacy and safety were evaluated after three months treatment. Results The survey of glycemic control revealed that the mean HbA1c of 5 586 patients with diabetes mellitus was (7.97±2.89)% ,and the success rate (HbA1c≤6.5%) was 14. 1%. Further more, HbA1c decreased from (8.23±4.00)% before optimization to (6.86±2.24)% after optimization with the average decrement of 1.37% (P<0. 001) and the success rate was raised to 34. 1%. The gliclazide modified-release tablets were well tolerated by most patients, only 2.6% of whom were reported to experience unconfirmed hypoglycemia. Conclusion The success rate of glycemic control was low in Chinese out-patients with type 2 diabetes mellitus receiving oral antidiabetic agents in the clinic. The optimized regimen of gliclazide modified-release tablets taken once daily can down-regulate glycemic levels and increase the success rate of HbA1c reduction,and thus plays efficiently and safely a key role in the optimized management of type 2 diabetes mellitus.
7.Comparative Study on Lead Exposure Among Children in Urban and Rural Area After Application of Lead-free Gaso-line
Dong YUAN ; Xiaohui XU ; Shunhua YE
Journal of Environment and Health 2000;17(6):351-354
[Objective]To understand the changes of children's blood lead levels and intelligence quotient (IQ) andthe effects of automobile exhaust on the prevelance rates of respiratory symptoms of children. [Methods] 151 pupilsof Y primary school in urban area were selected as exposure group, 160 pupils of Z primary school in Pudong districtwere selected as control group. The health questionaire survey and health examination were carried out amongpupils. The peripheral blood lead levels of the forth finger were determined. The IQ was determined by combinedRaven's Test. The data were statistically analzed by EPI Info and SAS statistic softwares. [Results] Significant differ-ences of blood lead levels were observed between exposure group and control group. The blood lead levels (x) negatively correlated with children's IQ (y) (y= 120. 11--0. 129x) . The prevelance rates of sore and uncomfortable feelings and foreign body sensation in throat and cough of exposure group were significantly higher than those in controlgroup. The ORs of corresponding symptoms were 1.71, 2, 64 and 2. 92 respectively. The multiple linear regressionanalysis showed that exposure to automobile exhaust and the distances from the residential region to street with heavytraffic were the main factors affecting the children's peripheral blood lead levels and the prevelance of respiratorysymptoms. [Conclusion] Further control of the emission of automobile exhaust and reasonable planning of location ofresidential areas were the main measures to control the prevelance of lead poisoning and its related diseases of children.
8.Alteration of vascular remolding and blood pressure in rat offsprings following maternal exposure to LPS during pregnancy
Ying MIAO ; Yuan TANG ; Xiaohui LI
Journal of Third Military Medical University 2003;0(07):-
Objective To explore the effect of prenatal inflammation on vascular remolding and blood pressure in mid-aged rats.Methods Time-mated pregnant Sprague-Dawley(SD)rats were randomly divided into 2 groups,received peritoneal injection of 0.79 mg/kg LPS on the gestation days 8,10,and 12,or same volume of the sterile saline at the same time points.Nine pups were randomly selected from each group for the later experiments,and the offspring were named as LPS groups for those having prenatal LPS exposure and control group for those having not.Their blood pressure was determined with a rat tail non-invasive instrument by tail-cuff method from 6 weeks old to 35 weeks old,and then their aortas were taken out for media thickness(MT),diameter of lumen(LD),and the ratios of MT/LD.The expression of proliferating cell nuclear antigen(PCNA)on the vessel was detected by ELISA.The serum level of NO and plasma endothelin-1(ET-1)were measured by nitrate reductase and radioimmunoassay respectively.Results Compared with control group,LPS groups had significantly raised blood pressure,a significantly higher ratio of MT/LD,obviously increased expression of PCNA,and markedly elevated serum ET-1.Conclusion The offspring whose prenatal rats were exposured to LPS result in vascular remolding,vasofunctional disturbances and hypertension.
9.Effects of ultrasound-guided paravertebral nerve block combined with general anesthesia on intraoperative stress response, hemodynamics and postoperative pain of patients undergoing laparoscopic cholecystectomy
Xiaoyang JIANG ; Jianguo XIA ; Xiaohui YUAN
Journal of Chinese Physician 2021;23(5):739-743
Objective:To observe the effects of ultrasound-guided paravertebral nerve block combined with general anesthesia on intraoperative stress response, hemodynamics and postoperative pain of patients undergoing laparoscopic cholecystectomy.Methods:A total of 92 patients undergoing elective laparoscopic cholecystectomy in Wuhan Third Hospital between January 2017 and August 2019 wereselected. They were divided into the control group (63 cases) and the observation group (29 cases) by voluntary. The control group were given simple general intravenous anesthesia, and the observation group were given ultrasound-guided paravertebral nerve block combined with general intravenous anesthesia. Changes in hemodynamic parameters and concentrations of blood angiotensin-Ⅱ (AT-Ⅱ) and cortisol (Cor) in the two groups were observed. The cerebral state indexes (CSI) of both groups were recorded, and pain degree of patients was evaluated with the visual analogue scale (VAS).Results:The mean arterial pressure (MAP) and heart rate (HR) of the observation group were higher than those of the control group at 30 min after anesthesia, 30 min after operation, 3 hours after operation ( P<0.05), the stroke volume variation (SVV) was lower than that of the control group ( P<0.05); the AT-Ⅱ, Cor and CSI in the observation group were lower than those in the control group at each time point ( P<0.05); The dosage of narcotic drugs in the observation group was significantly lower than that in the control group ( P<0.05); The recovery time of spontaneous breathing, recovery time, extubation time and respiratory satisfaction time in the observation group were less than those in the control group ( P<0.05), and the VAS scores at 3 h, 6 h and 12 h after operation in the observation group were lower than those in the control group ( P<0.05). Conclusions:Ultrasound-guided paravertebral nerve block combined with general anesthesia can effectively reduce the patient's stress response during laparoscopic cholecystectomy, with good analgesic effect, which is helpful to maintain the hemodynamic stability of patients.
10.Nesidioblastosis in an adult with type 2 diabetes mellitus:A case report
Aimei DONG ; Zhengfang YUAN ; Hong ZHANG ; Yanming GAO ; Xiaohui GUO
Journal of Peking University(Health Sciences) 2003;0(05):-
Adults-onset nesidioblastosis,as a differential diagnosis of organic hyperinsulinemic hypoglycemia,is very rare and has been recognised as "noninsulinoma pancreatogenous hypoglycaemia syndrome(NIPHS)".Here we described an extremely rare case of NIPHS in an eldly type 2 diabetes mellitus with insulin therapy.A 84-year old male was diagnosed as type 2 diabetes six years ago and switched from an oral hypoglycemic drug to pro-mixed insulin treatment 3 years ago.According to medical records,he had good-glucose control over few hypoglycemia.He was admitted to hospital due to frequent fasting hypoglycaemic episodes and comas despite withdrawal of any anti-diabetes drugs and continous infusion of homogenate meal at night.Lab test showed low fasting glucose level and inappropriate high insulin/C-peptide level,and anti-insulin antibody was negative.A characteristic of hyperinsulinemic hypoglycemia with high C-peptide level was consistent with the possible diagnosis of insulinoma,but localizing studies including computed tomography of the abdomen and somatostatin receptor scintigraphy were negative.Surgical exploration by the palpation and intraoperative ultrasonography failed to detect any mass in the pancreas and 70% distal pancreatectomy was performed.Histological examination of the resected pancrease revealed an increased number and size of islets consistent with nesidioblastosis.After transient decline,his serum insulin travelled back to the level before pancreaectomy,but recurrent fasting hypoglycemia was mild and controlled by regular night eating postpancreaectomy.Abstract:SUMM ARY Adults-onset nesid ioblastosis,as a d ifferential d iagnosis of organic hyperinsulinem ic hypo-glycem ia,is very rare and has been recognised as"noninsulinoma pancreatogenous hypoglycaem ia syn-drome(NIPHS)".Here we described an extremely rare case ofNIPHS in an eldly type 2 d iabetesmelli-tus with insulin therapy.A 84-year old male was d iagnosed as type 2 d iabetes six years ago and switched from an oral hypoglycem ic drug to pro-m ixed insulin treatment 3 years ago.Accord ing tomed ical records,he had good-glucose control over few hypoglycem ia.He was adm itted to hospital due to frequent fasting hypoglycaem ic episodes and comas despite withdrawal of any anti-d iabetes drugs and continous infusion of homogenate meal at night.Lab test showed low fasting glucose level and inappropriate high insulin /C-peptide level,and anti-insulin antibody was negative.A characteristic of hyperinsulinem ic hypoglycem ia with high C-peptide level was consistentwith the possible d iagnosis of insulinoma,but localizing stud ies includ ing computed tomography of the abdomen and somatostatin receptor scintigraphy were negative.Surgical exploration by the palpation and intraoperative ultrasonography failed to detect any mass in the pancreas and 70% d istal pancreatectomy was performed.H istological exam ination of the resected pancre-ase revealed an increased number and size of islets consistent with nesid ioblastosis.After transient de-cline,his serum insulin travelled back to the level before pancreaectomy,but recurrent fasting hypoglyce-m ia was m ild and controlled by regular night eating postpancreaectomy.