1.Pharmacological and molecular biological characteristics of store-operated calcium ciannels
Yan CHE ; Potocnik SIMON ; Chunguang LI ; Zhengang WANG ;
Chinese Pharmacological Bulletin 1986;0(04):-
Store operated calcium channels (SOCCs) are referred to as plasma membrane calcium channels that are opened in response to a depletion of intracellular calcium stores. SOCCs are broadly distributed in excitable and non excitable cells, and may play important roles in conducting intracellular calcium signals, modulations of cell functions and gene expression. Although the current understanding of SOCCs related mechanism is still limited, the physiological significance of SOCCs and their possible links to certain diseases have been suggested. Future study of highly selective SOCCs modulating agents may promote not only related research, but also the development of novel therapeutic drugs.
2.Study on the Effect of Dark Tea Fermentation Liquid with Eurotium cristatum on the Activity of Digestive Enzyme
Qun HUANG ; Lin-Jie CHEN ; Yan-Po LI ; Ke CHE ;
Microbiology 1992;0(05):-
The effect of dark tea fermentation liquid with Eurotium Cristatum on the activity of digestive enzyme was researched, as fellowing amylase, protease, lipase. The results showed that dark tea fermentation liquid with Eurotium Cristatum may increase remarkably the activity of ?-amylase and protease, but decrease efficiently the activity of lipase. The fermentation liquid improves the digestion and absorption of starch and protein, but inhibits the decomposition and absorption of fat, so it can explain the mechanism of Fu-brick tea's health functions.
3.The Effectiveness of Magnesium Sulfate in Treatment of Intractable Epilepsy:A report of 72 Cases
Dexiang LI ; Shiguang YAN ; Xuesong LI ; Rentiao LI ; Maoxu LI ; Fengyuan CHE
Herald of Medicine 2001;(2):95-96
Objective:To determine the dosage,method and effectiveness of using magnesium sulfate for treating the intractable epilepsy.Methods:72 cases were allocated to treatment group and 36 to control group. For those in the treatment group,either 10 mL of 25% MgSO4 was administered by intravenous drip or 10 mL of 16.5% MgSO4 by oral intake once per day,in addition to the use of the commonly used antiepilepsy drugs. For those in the control group,the commonly used antiepilepsy drugs such as tegretol,sodium phenytoin,luminal or γ-Aminobutyric Acid were employed.Results:The improvement rate in the treatment group was 87.50%,higher than that (44.44%) in the control group (P<0.01).Conclusion:Using magnesium sulfate in conjunction with the antiepilepsy drugs is a simple yet effective regime for the treatment of the intractable epilepsy.
4.A clinical study of preventive effect of entecavir on HBV reactivation in lung cancer with HBV carriers after chemotherapy
Dehai CHE ; Zhen LI ; Gang XU ; Yan YU ; Hua ZHANG ; Yan LIU
Practical Oncology Journal 2014;(1):7-11
Objective The present study aims to determine the correlation between liver function dam-age and hepatitis B virus ( HBV ) reactivation caused by chemotherapy , and the preventive effect of entecavir on HBV reactivation in lung cancer with HBV carriers .Methods A total of 160 lung cancer patients with HBV car-riers in the affiliated tumor hospital of Harbin Medical University from January 2011 to December 2012 was inves-tigated and the clinical data were studied retrospectively .The patients were divided into prophylactic group ( n=80)and control group(n=80).In prophylactic group,0.5 mg of daily oral entecavir was administered before the chemotherapy until 6 months after the completion of chemotherapy .Control group received no entecavir .The inci-dence of HBV reactivation ,functional damage of liver ,toxicities and disruption of chemotherapy were measured . Results The comparison between the control group (25%) and prevent group (5%) showed a statistically signifi-cant difference in the incidence of HBV reactivation (P<0.01).Moreover,HBV-DNA level(HBV-DNA≥104 copies/mL)was risk factors of HBV reactivation (P<0.05).Histology and stage of lung cancer,the chemother-aphy scheme containing platinum , positive HBeAg were not significantly correlated with HBV reactivation ( P>0.05).There were significant differences in grade III and IV hepatic toxicity (P<0.05)between control group (30%)and prevent group(5%),but was not in grade I and II hepatic toxicity (P>0.05).Disruption of chemo-therapy showed significant difference between control group (20%)and prevent group(5%)(P<0.05).The ma-jor grade 1 ~2 toxicities were myelosuppression,nausea,vomiting,skin rash,diarrhoea,neurotoxicity,fatigue, headache,insomnia,etc.All adverse reactions were cured after treatment .Conclusion The prophylactic adminis-tration of oral entecavir could reduce the risk of HBV reactivation in lung cancer with HBV carriers .
5.Sequencing and Homology Analysis for the Nucleocapsid Gene of JS/95/03 Strain of Avian Infectious Bronchitis Virus Isolated from Jiangsu, China
De-sheng, CHEN ; Jie-yan, PAN ; Li-qun, JIA ; Bao-xiang, CAI ; Pu-yan N CHE
Virologica Sinica 2001;16(1):22-27
Field avian infectious bronchitis virus (IBV) designated as JS/9 5/03, which was isolated from Jiangsu province of china, was cultivated in chicken emb ryo. It's single strain RNA was extracted from purified virus and worked as temp late of reverse transcription polymerase chain reaction (RT-PCR), a pair of pri mer designed according to megalign results of published IBV sequences in Genbank was used to amplify the neucleocapsid gene, the RT-PCR product was sequenced d irectly. Sequence analysis revealed that the sequence of JS/95/03 is most homolo gized with that of M41 strain.
6.Vascular smooth muscle cell proliferation and apoptosis of the aortic wall during the development of abdominal aortic aneurysm
Da-Yong LI ; Yan CHE ; Yong YANG ; Qiang ZHANG ; Yan-Wei LV ;
Chinese Journal of General Surgery 1993;0(03):-
Objective To explore vascular smooth muscle cell(SMC) proliferation and cell apoptosis during the development of abdominal aortic aneurysm(AAA). Methods The animal model of AAA was established in Wistar rats and the specimens were harvested at the 3rd day,and 1、2、3 and 4 week after the model initiation. In situ end-labeling of DNA fragments (TUNEL) was used to detect SMC apoptosis and immunohistochemical staining was applied to investigate the expression of SMC apoptosis markers(bcl-2,bax),proliferating cell nuclear antigen (PCNA) and ?-actin. Results TUNEL-positive and PCNA-positive SMC reached the maximum at 2~3 week and 1 week respectively;The count of TUNEL-positive SMC was less than PCNA-positive SMC during the period of day 3 to 1 week and that was vice versa from 2nd to 4th week with SMC amount significantly decreased;Bcl-2 and bax protein was strongly expressed at 1 week and 3 week after operation(all P
7.Comparison of RIFLE and AKIN diagnosis criteria for acute kidney injury in patients undergoing cardiac surgery
Miaolin CHE ; Yi LI ; Xinyue LIANG ; Mingli ZHU ; Jiaqi QIAN ; Zhaohui NI ; Song XUE ; Yucheng YAN
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(10):1214-1217
Objective To compare the RIFLE and AKIN diagnosis criteria for acute kidney injury ( AKI) in patients undergoing cardiac surgery. Methods Patients undergoing cardiac surgery from January 2004 to June 2007 were retrospectively evaluated. RIFLE and AKIN criteria were employed for the diagnosis and staging of AKI which occurred 7 d after cardiac surgery. The diagnosis sensitivity and precision for prediction of hospital mortality were compared between these two criteria. Results One thousand and fifty-six patients were included in this study. There was no significant difference between the prevalence of AKI after cardiac surgery diagnosed by RIFLE criteria and that diagnosed by AKIN criteria (29.55% vs 31.06%, P>0.05). There was no significant difference between the total hospital mortality and the hospital mortality of each stage of AKI diagnosed by RIFLE criteria and those diagnosed by AKIN criteria ( P > 0. 05). Logistic regression analysis suggested that the relative risk of hospital mortality for AKI was similar between patients diagnosed by AKIN criteria and those diagnosed by RIFLE criteria. The area under the ROC curve for hospital mortality was 0. 856 for RIFLE and 0.865 for AKIN in all patients (P<0.001). Conclusion Compared to RIFLE criteria, AKIN criteria do not improve the sensitivity of diagnosis and predictive ability of hospital mortality of AKI after cardiac surgery.
8.The inhibition of heme oxygenase-1 on experimental abdominal aortic aneurysm
Yan CHE ; Qiang ZHANG ; Dayong LI ; Yong YANG ; Chenglin SUN ; Shijie XIN
Chinese Journal of General Surgery 1993;0(02):-
Objective To explore the role of heme oxygenase-1 (HO-1) gene expression on murine experimental abdominal aortic aneurysm (AAA).Methods Wistar rats were divided into hemin (experimental group) and saline (control group) group randomly, and experimental AAA model was established by elastase perfusion. The specimen was obtained at postoperative day 7, and the dilatation rate was calculated. In situ hybridization was applied to detect the expression of HO-1 mRNA in aortic wall, while immunohistochemical staining was used to detect the protein expression of ICAM-1 and HO-1. Results In experimental group, the aorta dilation was inhibited and aneurysm was not observed. In experimental group, HO-1 mRNA and protein expression was strengthened (P
9.Value of introvoxel incoherent motion model in assessment of differentiation and blood supply of cervical cancer
Yan ZHOU ; Jianyu LIU ; Congrong LIU ; Jing JIA ; Shunan CHE ; Nan LI ; Zhenyu ZHOU
Chinese Journal of Radiology 2015;(5):354-359
Objective To investigate the value of intravoxel incoherent motion (IVIM) model of diffusion weighted MRI in assessing grades and enhancement patten of uterine cervical cancer. Methods Thirty one patients with pathologically proven cervical cancer, who underwent MRI scan preoperatively, were analyzed retrospectively and were divided into 3 groups according to their pathological grading of cacer, including 6 with G1 cancer, 17 with G2 and 8 with G3. The diameter of each lesion was≥1 cm. 10 b values (0, 30, 50, 100, 150, 200, 400, 800, 1 000, 1 500 s/mm2) were used in DWI, and DCE-MRI was performed with a time resolution of 9.8 s. Parameters of DWI (ADC, D, f, D*) and semiquantitative parameters of DCE-MRI (Slop, Maxslop, CER, Washout, AUC90) were measured. One-way ANOVA analysis of variance and Pearson correlation were used to analyze normally distributed continuous data. Kruskal-Wallis H test and Spearman correlation were used to analyze abnormally distributed continuous data. Tumor volume and all of the MRI parameters were compared as well as correlated with pathological grading.The perfusion parameters derived from IVIM were correlated with those derived from dynamic enhanced MR imaging. The sensitivity and specificity of f value to to diagnose G3 cervical cancer and the best cutoff were calculated from areas under the ROC curves.Results Tumor volume of G1,G2 and G3 cancers were(33.8±31.1),(19.6±16.9)and(31.2±29.1)cm3(F=1.147,P=0.332), respectively.ADC values of the three groups were(1.03 ± 0.11)× 10-3,(1.00 ± 0.10)× 10-3 and(0.90 ± 0.05)× 10-3mm2/s,respectively(F=4.619,P=0.018).D values of the three groups were (0.80 ± 0.11) × 10-3, (0.77 ± 0.06) × 10-3and (0.69 ± 0.06) × 10-3mm2/s ,respectively(F=5.272, P=0.011).f values of the three groups were 0.20±0.02, 0.22±0.03 and 0.24± 0.03, respectively (F=3.524, P=0.043).All of the others were of no significant difference (P>0.05).Both ADC and D correlated negatively with tumor grading (r=-0.464 and-0.493, P=0.009 and 0.005, respectively). f value correlated positively with tumor grading (r=0.436, P=0.014).Areas of ADC, D and f value under ROC curves to diagnose G3 cancers were 0.179, 0.147 and 0.690, respectively. While the cut-off value of f was 0.22, the diagnostic performance for G3 cancer was with a sensitivity of 75.0% (6/8) and a specificity of 60.9% (14/23). The value of f had weak positive correlations with Slop, Maxslop, CER and AUC90 of semiquantitative analysis of DCE-MRI (r=0.319, 0.337, 0.293 and 0.344, respectively, P<0.01). Conclusion IVIM model of multi-b value DWI may provide information in the assessment of differentiation and en hancement pattern of cervical cancer.
10.Investigation and Study of Training Needs of Basic (County and Township) Food and Drug Supervision Personnel
Yiwei WANG ; Yun ZOU ; Yan CAO ; Yue CHE ; Li YUAN ; Jiangong XU
China Pharmacist 2015;(6):998-1000
Objective:To understand the training needs of basic food and drug supervision personnel to provide guidance for the future textbook compiling and training. Methods:The work, training and learning needs of basic food and drug supervision personnel were investigated using the questionnaire survey in the director of the county bureau. Results:The difference in the professional back-ground among the supervision persons and the training were significant in different areas. Conclusion: By strengthening training and textbook construction, the ability of basic food and drug supervision personnel can be enhanced and the supervision and regulation level can be improved as well.