1.Dynamic Changes of Neuron-Specific Enolase mRNA and Protein in Brain Tissue of Offspring Rats with Bilirubin Encephalopathy
zhi-mei, JIANG ; xiao-jie, LI ; ai-ping, SUN ; bing-kun, CHEN
Journal of Applied Clinical Pediatrics 2004;0(12):-
Objective To observe the dynamic changes of neuron-specific enolase(NSE)mRNA and protein in offspring rats brain tissue with bilirubin encephalopathy and explore the pathological mechanism and its diagnostic value on bilirubin encephalopathy.Methods Seven-day postnatal Wistar rats were used for study.One hundred and twenty rats were divided into 2 groups randomly(control group and experimental group),which were respectively subdivided into 6 groups(6,12,24,48,72,96 h).The rats in control group were intraperitoneally administered physiological saline 0.5 mL,the rats in experimental groups were intraperitoneally administered bilirubin(200 mg/kg).Reverse transcription-polymerase chain reaction was used to analyze the dynamic changes of NSE mRNA expression at 6,12,24,48,72 and 96 h in brain tissue of rats with bilirubin encephalopathy.Immunohistochemistry was used to evaluate NSE protein expression in hippo-campi,cerebral cortex,thalamic and pallidus at different times.Results The expression of NSE mRNA significantly decreased in brain tissue of rats with bilirubin encephalopathy from 6 h to 96 h compared with the control groups.The expression of NSE protein in hippocampi decreased in offspring rats with bilirubin encephalopathy from 6 h to 96 h,but there were no differences compared with the control groups.The expression of NSE protein in cerebral cortex was significantly decreased in rats with bilirubin encephalopathy from 6 h to 96 h,there were significant differences compared with the control group.The expression of NSE protein in thalamic significantly decreased in rats with bilirubin encephalopathy from 6 h to 96 h,but there were significant differences between experimental groups and the control groups at 24 h and 72 h.The expression of NSE protein in pallidus significantly decreased in offspring rats with bilirubin encephalopathy from 6 h to 96 h,and there were significant differences compared with control groups.Conclusions The changing trends of expression of NSE mRNA were identical to those of NSE protein.NSE may reflect the degree of injury of neurogliocyte.It can serve as reliable index to determine bilirubin encephalopathy.
2.A review on health inequ ality and related facot rs of the globa l elderly
Kun LIU ; Nan ZHANG ; Yufeng FANG ; Qing CHU ; Xiao-jie SUN
Chinese Journal of Health Policy 2014;(5):68-75
The rapidly aging population has attracted extensive attention to the health of elderly people .The elderly are a vulnerable group in society .Their adverse physical and mental health not only affects their own well-be-ing but also brings a heavy burden on families and society .Numerous studies have found that health inequality of the elderly is a problem throughout the world, and differences in gender, age, marital status, socioeconomic status, and social capital among the elderly are all contributing factors .This paper summarizes these factors through a literature review.We suggest that cross-sectional and longitudinal data should be combined and suitable indicators and mathe -matical models to Chinese conditions should be established in order to analyze the mechanisms of various factors and their effects on health inequality and serve as a reference for promoting the overall health of the elderly .
3.Sarpogrelate hydrochloride in the treatment of chronic arterial ischemia of the lower extremities
Jun CHENG ; Xuehu WANG ; Le XIAO ; Jianming SUN ; Kun WANG ; Jianghua ZHENG ; Yu ZHAO ; De SHI
Chinese Journal of General Surgery 2012;(11):890-892
Objective To evaluate the clinical efficacy of oral Sarpogrelate hydrochloride in the treatment of chronic arterial ischemia of the lower extremities.Methods In this study 892 patients,who suffered from arteriosclerosis (ASO) or thromboangiitis obliterans ( TAO ) or diabetic foot ( DF ),with symptoms of intermittent claudication, sensation of cold, pain, ulcer, and without a history of vasotransplantation or bypass grafting or interventional therapy, were treated by taking Sarpogrelate hydrochloride tablets 100 mg tid for consecutive 8 weeks.The improvement rate of concomitant symptoms and the total effective rate of ASO, TAO, DF were evaluated.Drug adverse reaction were recorded.Results The improvement rate of intermittent claudication,sensation of cold,pain and ulcer were 96.9%,97.1%,89.0% and 86.9% respectively.The total effective rate for ASO,TAO,DF was 83.5%.A total of 81 cases (9.1%) reported mild side effects,including 7 patients with mild rash after 2- 5 days' medication,21 patients with mild nausea and 53 patients with stomach discomfort after 1 - 2 days' medication.Symptoms were managed conservatively without discontinuing taking sarpogrelate hydrochloride.Conclusions Sarpogrelate hydrochloride oral is a safe and effective therapy for chronic arterial ischemia diseases of the lower extremities.
4.Determination of 2,3,5,4'-tetrahydroxystilbene-2-O-beta-D-glucoside in yangan oral liquid by HPLC.
Hui-ping ZHAO ; Yi-kun SUN ; Xiao-qian ZHANG
China Journal of Chinese Materia Medica 2003;28(2):133-176
OBJECTIVETo establish the determination method of 2,3,5,4'-tetrahydroxystilbene-2-O-beta-D-glucoside in Yangan Oral Liquid.
METHOD2,3,5,4'-tetrahydroxystilbene-2-O-beta-D-glucoside was determined by HPLC on C18 column, in acetonitrile-water (14:86) solution as a mobile phase, detection wavelength as 320 nm.
RESULTThis method showed a good linear relationship. The average recovery was 99.05% and RSD was 1.31%.
CONCLUSIONThe method was simple with styong specificity and good repriducibility and can be used for quality control for Yangan Oral Liquid.
Chromatography, High Pressure Liquid ; methods ; Drug Combinations ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; isolation & purification ; Glucosides ; analysis ; Plants, Medicinal ; chemistry ; Polygonum ; chemistry ; Quality Control ; Stilbenes ; analysis
5.Biological Characteristics of the Rhizobia Isolated from Acacia confusa Grew in the Karst Environment
Cheng-Qun LV ; Jun-Kun LU ; Bao-Ling HUANG ; Yi-Shu SUN ; Xiao-Hua LI ;
Microbiology 1992;0(02):-
The paper is about the systematic studies of biological characteristics of 15 stains rhizobia isolated purified from Acacia confusa grew in Guangxi karst environment.The results showed that there were typical characteristics of rhizobia.there were negative reaction about use of 3-ketolactose and beef extract peptone nutrient agar medium,and positive reaction about use of starch and citrate medium,and produce acid in reaction of BTB and litmus milk medium,(NH4)2HPO4 was used as nitrogen sources and both four monosaccharides and three disaccharides could be utilized as carbon sources in 15 strains rhizobia isolated Acacia confuse.Among the 15 strains for the tests,11 strains could deoxidize the nitrate of medium into nitrite,14 strains could grow well on NaCl solution concentration 3.0 %~4.0 %,14 strains could grow at 39℃,13 strains may grow on highest pH12 and 4 strains on lowest pH4 cultrue medium.15 strains can grow in 10% and 11 strains in 10%~30% of CaCO3 solution concentration.
6.MR diffusion weighted imaging of gastric cancer:b-value determination and comparison with routine sequences
Xiao-Peng ZHANG ; Lei TANG ; Ying-Shi SUN ; Jie LI ; Kun CAO ;
Chinese Journal of Radiology 2000;0(12):-
Objective To choose the optimal b-values for the DWI of gastric cancer(GC),and investigate the value of DWI in the diagnosis of GCs.Methods MRI examinations(T_1WI,T_2WI,and DWI)were performed on 31 patients with gastric cancer.Three diffusion-weighted sequences were designed with different b values,including 300 s/mm~2(low),600 s/mm~2(intermediate),and 1000 s/mm~2(high). Free water grade was used to evaluate the suppression of content in gastric lumen.Background contrast grade was used to evaluate the discriminating ability of different sequences between GC and nearby tissues.The ADCs of GCs,nearby gastric wall region,and free water in gastric lumen were measured.SNRc_(Ca),CNR_(Ca-Gw) and SIRc_(Ca-Gw)of high b-value DWI and routine MRI sequences were evaluated and compared.Results The signal intensity of free water in gastric lumen decreased as b-value increased,and the SIR were 8.11? 0.77(b=300 s/mm~2),2.70?0.35(b =600 s/mm~2),and 1.13?0.22(b=1000 s/mm~2)(F= 55.368,P
7.Identification of metastasis-related osteopontin expression and glycosylation in hepatocellular carcinoma.
Hai-yan SUN ; Yan LI ; Kun GUO ; Xiao-nan KANG ; Chun SUN ; Yin-kun LIU
Chinese Journal of Hepatology 2011;19(12):904-907
OBJECTIVETo test expression level and glycosylation level of OPN in HCC cell lines with different metastatic potential and HCC tissues, and investigate the correlation between the glycosylation change and the liver cancer transporting as well as its significance.
METHODSThe level of OPN expression in liver cancer tissue(6 cases of non-metastasis and 7 cases of metastasis)as well as HCC cell lines with different metastatic potential (L02, Hep3B, MHCC97L, MHCC97H, HCCLM3, HCCLM6)was identified by immunohistochemistry and Western Blot, and then OPN was purified from HCC tissues by immunoprecipitation, followed by glycosylation detection of OPN from non-metastatic and metastatic HCC tissues by multiple lectin blot. Data were analyzed by t-test and variance analysis.
RESULTSDifferent levels of OPN expression were observed in HCC cell lines with different metastatic potential (F = 5.04, P = 0.008). Additionally, OPN expression level in HCC tissues with metastasis was higher than that in non-metastasis group (t = 2.447, P < 0.05). Relative optical density value was 0.69 ± 0.21 and 0.45 ± 0.14 respectively. OPN in liver cancer tissue was successfully purified using immunoprecipitation. Followed lectin blotting result showed that OPN protein in metastasis group showed lower affinity to MAL, PHAE, DSA, ConA as compared with that in non-metastasis group (P < 0.05).
CONCLUSIONSThe expression of OPN was positively correlated with the enhanced metastasis potential of HCC. OPN from metastasis HCC tissues presented lower level of some specific glycan structures such as a2, 3- sialic acid, bisecting GlcNAc, biantennary, muti-antennary and high mannose type N-glycan structure. This study not only indicates the role of OPN in HCC metastasis for the first time, but also provide experimental support for the mechanism of the function of OPN in the transportation of liver cancer cells as well as offer potential target for clinical treatment.
Carcinoma, Hepatocellular ; metabolism ; pathology ; Cell Line, Tumor ; Glycosylation ; Humans ; Liver Neoplasms ; metabolism ; pathology ; Neoplasm Metastasis ; Osteopontin ; metabolism
8.Comparison of curative effect between two mesh suspensions in treating female stress urinary incontinence
Ling HONG ; Huai-fang LI ; Jing SUN ; Xiao-ming TENG ; Kun-ming LI ; Bo-zhen FAN ; Xiao-wen TONG ;
Journal of Chinese Physician 2010;12(4):433-436
ObjectiveTo evaluate the curative effect difference between Tong's anterior mesh suspension and modified tension-free vaginal tape-obturator (TVT-O). Methods75 SUI cases were random divided into two groups: Group A (35 cases) were accepted Tong's anterior mesh suspension and group B (40cases) were accepted modified tension-free vaginal tape- obturator. Curative effects, operation safety,and complications and so on, were recorded and compared. ResultsThere had no statistical differences between these two groups on operation time, bleeding lose, operation injury, immediate postoperative urinary retention andcure rates, but the operation expense of group A was cheaper than group B [ (980. 74 ±212.45)yuan vs (2879.06 ±467. 13)yuan , P <0.05). ConclusionThe curative effect between two methods were similar. It's a little complicated and fit to be popularized in large hospital to modified tensionfree vaginal tape-obturator. Tong's anterior mesh suspension was performed under completely direct vision,not through pelvic cavity, and it was an economic, convenient and easy way, which not only fit to be popularized in basic hospital, but also a surgical remedial measure to the failures who accepted these operations,such as TVT, SPARC, IVS, MONARC, TOT, TVT-O, etc.
9.Applicability of the multiplex quantitative antibody array system for early diagnosis of hepatocellular carcinoma.
Dong-mei GAO ; Lu SUN ; Kun GUO ; Yan LI ; Yin-kun LIU ; Xiao-nan KANG
Chinese Journal of Hepatology 2012;20(10):785-788
OBJECTIVETo develop an early and accurate detection method for hepatocellular carcinoma (HCC) based on detection of tumor-associated serum markers using a multiplex quantitative antibody array.
METHODSThe double-antibody sandwich principle was used to establish an antibody array composed of eight cancer-related serum markers, including alpha-fetoprotein (AFP), hepatocyte growth factor (HGF), insulin-like growth factor (IGF), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10), transforming growth factor-beta 1 (TGF-b1), and vascular endothelial growth factor (VEGF). Serum samples from 160 cases of clinically diagnosed HCC and from 58 cases of liver cirrhosis (LC; controls) were obtained to test the array. Sixty percent of the samples were randomly selected for use as the training set (HCC, n = 96; LC, n = 36), and the remaining 40% was used as the test set (HCC, n = 64; LC, n = 22). The SPSS statistical software was used to perform logistic regression analysis and to create a diagnostic model.
RESULTSWhen used with the training set, the model had sensitivity of 93.3%, specificity of 83.3%, and accuracy of 90.9%. When used with the test set, the model had sensitivity of 89.0%, specificity of 77.3%, and accuracy of 86.0%. The traditional serum AFP value (cut-off value of 20 ng/mL) showed 70.0% diagnostic sensitivity, 59.0% specificity, and 64.0% accuracy.
CONCLUSIONThe newly developed multiplex quantitative antibody detection system has high sensitivity and specificity. The diagnostic model with AFP and seven other cancer-related factors was superior to the traditional AFP only approach for early diagnosis of liver cancer, indicating its potential clinical value.
Adult ; Aged ; Biomarkers, Tumor ; blood ; Carcinoma, Hepatocellular ; diagnosis ; Early Diagnosis ; Female ; Humans ; Liver Neoplasms ; diagnosis ; Male ; Microchip Analytical Procedures ; Middle Aged ; Sensitivity and Specificity ; Young Adult ; alpha-Fetoproteins ; immunology
10.The effects of intergrin-linked kinase on angiogenesis in hypertrophic scar.
Ren-Kun WANG ; Ye-Yang LI ; Gang LI ; Wei-Hua LIN ; Jing-En SUN ; Zhen-Wen LIANG ; Xiao-Hong WANG
Chinese Journal of Plastic Surgery 2013;29(6):413-412
OBJECTIVETo investigate the effects and regulatory mechanism of ILK on angiogenesis in hypertrophic scar.
METHODSThe human scar microvascular endothelial cells (HSMECs) were isolated from 6 patients' hypertrophic scar in vitro. The HSMECs with good condition in 2nd to 4th generation were selected as experimental objectives. (1) HSMECs were divided into the blank control group (treated with routine culture), negative control group (treated with only Lipofectamine 2000), LY294002 group (incubated with 50 nmol/L LY294002), ILK siRNA group (incubated with 20 nmol/L ILK siRNA). RT-PCR and Western Blot were used to detect the expression of ILK mRNA and its protein after transfecion for 48 h. (2) The digested HSMECs of four groups were resuspended with DMEM without serum and then seeded onto the upper compartment of transwell insert which contained complete medium in its lower compartment. The cell migration experiment was stopped in 10 h and then the migrated cells were counted to analyze the effects of different interventions on the migration ability of HSMECs. (3) The thawed ECMatrix was put into each well of pre-colled 48-well tissue culture plate, and then the plate was put into the incubator at 37 degrees C to make it to become gel. The HSMECs of four groups were seeded onto the surface of the ECMatrix gel and were put into incubator. Eight random view-fields per well should be valued by the sheet of pattern recognition about angiogenesis after 8 hours to evaluate the ability of angiogenesis in vitro between four groups.
RESULTS(1) The expression of ILK mRNA (ILK mRNA = 0.829 +/- 0.109, t = 13.151, P = 0.006) and protein (ILK protein = 0.096 +/- 0.049, t = 36.656, P = 0.000) were both inhibited obviously in ILK siRNA group compared with the blank control group (ILK mRNA = 0.829 +/- 0.109, ILK protein = 1). And, the expression of ILK in LY294002 group was slightly lower than that of black control group, but there was no statistical difference. (2) The number of migrated cells in ILK siRNA group (88.111 +/- 3.079) and LY294002 group (138. 667 +/- 2.404) were respectively lower than that in blank control group (322.333 +/- 3.712, P < 0. 05) in 10th hour. (3) Compared to blank control group (4.333 +/- 0.191), the ability of angiogenesis in vitro decreased significantly ILK siRNA group (2.625 +/- 0.125) and LY294002 group (3.125 +/- 0.250), in which, the vascular network structures were not formed perfectly in 8th hour (P < 0.05).
CONCLUSIONSThe ability of HSMECs' migration and angiogenesis in vitro are inhibited significantly when the expression of ILK is down-regulated. It reveals that ILK may play an role in the regulation of scar angiogenesis.
Cell Movement ; Cell Proliferation ; Chromones ; pharmacology ; Cicatrix, Hypertrophic ; enzymology ; pathology ; Endothelial Cells ; cytology ; drug effects ; Humans ; Lipids ; pharmacology ; Morpholines ; pharmacology ; Neovascularization, Pathologic ; etiology ; pathology ; Protein-Serine-Threonine Kinases ; genetics ; physiology ; RNA, Messenger ; analysis ; RNA, Small Interfering ; metabolism