1.Effects of high glucose and insulin on the mRNA expressions of TGF-β1 , and TIMP-1 of hepatic stellate cells in rat
Journal of Chinese Physician 2016;18(8):1194-1197
Objective To explore the mechanism of diabetic hepatic fibrosis by observing effects of high glucose and insulin on expressions of transforming growth factor beta 1 (TGF-β1) and tissue inhibitor of metalloproteinase (TIMP-1) mRNAs of hepatic stellate cell (HSC) in rat.Methods Hepatic stellate cell lines in vitro were administrated by different dose of glucose without insulin and glucose with insulin for 72 h,and mannitol was chosen as hyperosmosis control group.Real time fluorescent quantitation polymerase chain reaction (RT-FQ-PCR) was used to determine expressions of TGF-β1 and TIMP-1 mRNAs of HSC in each group.Results Expressions of TGF-β1 and TIMP-1 mRNAs of HSC in each group could be detected and showed no significant difference among groups (P > 0.05).However,in general,expression of TGF-β1 mRNA in glucose with insulin group decreased and TIMP-1 mRNA increased.Conclusions The mRNA expressions of TGF-β1 and TIMP-1 in HSC could not be induced by high glucose alone,high dose of insulin may increase expressions of HSC TIMP-1 and reduce TGF-β1 expression.The main mechanisms of diabetic hepatic fibrosis may not be TGF-β1 pathway but be closely related to TIMP-1 pathway.
2.Mechanism of Primary Hepatic Carcinoma
Journal of Environment and Health 2007;0(11):-
Primary hepatic carcinoma is one of the high incidence malignant tumors and the mortality ranked the second in the death caused by malignant tumors in China. The research progress on the epidemiology of primary hepatic carcinoma, the related environmental factors(virus, parasite, bacterium infected, aflatoxin ingested, drinking water pollution, smoking and drinking alcoholic beverages) and genes were reviewed and the mechanism of primary hepatic carcinoma was discussed in the present paper.
3.Advances in research on enterovirus 71 vaccines
Jie MA ; Yongqiang DENG ; Chengfeng QIN ; Ede QIN
Military Medical Sciences 2015;(7):553-556
Enterovirus 71 (EV71) is one of the primary causative agents of hand, foot and mouth disease in children and closely associated with severe neurological complications and even deaths.EV71 outbreaks have occurred throughout the Asia-Pacific region since 1990s, posing global public health threat;however, no specific therapeutic strategy exists for severe EV71 infection.Several inactivated vaccine products have entered or finished the clinical trial stage, and some novel vaccine candidates, including live attenuated, subunit, and virus-like particle, show great potential for further develop-ment.This review summarizes the present situation and progress in the development of EV71 vaccines.
4.Distribution Characteristics of Persisters Isolated from Chronic Infected Patients
Qin QIN ; Hui WANG ; Xuran ZHUANG ; Linhong WU ; Anmei DENG
Journal of Modern Laboratory Medicine 2016;31(3):1-3,6
Objective To investigate the clinical distribution characteristics of persisters isolated from the chronic infected pa-tients,so as to provide scientific basis for effective clinical measures to prevent,control and treat persister-associated chronic infection.Methods Clinical microbial samples cultured from Jan.2013 to Dec.2014 were analysed by WHONET5.6.Four bacteria species with the highest isolation rate were performed for screening of chronic infection.Concentration of bacteria were detected by viable plate count method and then the growth curve were drew of each sample under the presence of anti-biotics.Persisters were comfirmed according to the specific growth curve under the presence of antibiotics.Results Four highest isolated bacteria species of the clinical samples were Escherichia coli (1 3.2%),Klebsiella pneumoniae (9.6%), Pseudomonasaeruginosa (8%)and Staphylococcusaureus (6.6%).862 chronic infection samples were generated out of 14 216 microbial samples and 41 persisters (4 strains of Escherichia coli,23 strains of Klebsiella pneumoniae,8 strains of Pseudomonasaeruginosa and 6 strains of Staphylococcusaureus)were isolated finally.Conclusion With such a comprehen-sively retrospective analysis of the hospital clinical microbial samples,can tell that the ratio of persisters in chronic infection was not high.And chronic infections are mostly caused by gene-mutated drug-resistant bacteria.However,the isolation rate of Klebsiella pneumoniae was relatively high,of which more attention should be payed to the prevention and control.
6.Effect of hyperthermia in combination with progresterone on a human tongue cancer drug-resistance cell line Tca8113/BLM
Chunmei HE ; Dilan QIN ; Ke DENG
Journal of Practical Stomatology 2009;25(6):862-864
Objective; To explore the possible effect of hyperthermia combined with Prog on a human tongue cancer cell line Tca8113 and drug-resistance cell line Tca8113/BLM in vitro. Methods;The effect of hyperthermia combined with Prog on Tca8113 and Tca8113/ BLM cells were determined by MTT. The concentration of ADM, the expression of P-gp and MRP were detected by flow cytometry (FCM). Results;Compared with Prog or hyperthermia, the hyperthermia at 41 X. for 1 h combined with Prog showed obvious inhibitory effect in Tca8113 and Tca8113/BLM cells(P<0.01). The concentration of ADM in Tca8113 and Tca8113/BLM cells increased obvi-ously(P<0.01). Expression levels of P-gp and MRP in Tca8113 and Tca8113/BLM cells decreased significantly. Conclusion:The hyperthermia combined with Prog can increase the intracellular concentration of ADM in Tca8113 and Tca8113 /BLM cells, which reverse the drug-resistance of Tca8113/BLM cells to BLM and down-regulate expressions of P-gp and MRP.
7.Diagnostic value of contrast-enhanced ultrasound endoscopy forupper gastrointestinal tract and adjacent lesions
Wei DENG ; Haixing JIANG ; Shanyu QIN
Chongqing Medicine 2017;46(14):1933-1937
Objective To investigate the diagnostic value of contrast-enhanced ultrasound endoscopy(CE-EUS) for the upper gastrointestinal tract and adjacent lesions.Methods One hundred and eighty samples of upper gastrointestinal tract and adjacent lesions in the First Affiliated Hospital of Guangxi Medical University from June 2014 to March 2015 were collected and performed CE-EUS.The preliminary diagnosis was taken by observing the features of various kinds of solid mass,which was conducted the contrastive analysis with the results of fine needle aspiration cytology(EUS-FNA) and (or) histopathology, biliary brush cytology smear results,operative pathologic findings,and CT,MRI scans and follow-up results.Results In 180 cases of gastrointestinal tract and adjacent placeholder,169 cases of CE-EUS were in line with the final results,while 11 cases were not consistent,and the diagnostic consistency rate was 93.9%.Conclusion CE-EUS can guide EUS-FNA puncture for increasing its positive rate..
8.Content Determination of Chlorogenic Acid in Different Dosage Forms of Qingkailing Preparation by RP-HPLC
Xiaoling CAI ; Yiqiang QIN ; Jungang DENG
China Pharmacy 2007;0(31):-
OBJECTIVE: To establish RP-HPLC method for the content determination of chlorogenic acid in 3 kinds of dosage forms of Qingkailing preparation. METHODS: SinoChrom ODS-AP C18(250 mm?4.6 mm, 5 ?m) column was adopted and the mobile phase consisted of methnol-water-acetic acid (25 ∶ 75 ∶ 0.5) at the flow rate of 1.0 mL?min-1. Column temperature was set at 30 ℃ and the detection wavelength was set at 327 nm. RESULTS: The linear range of chlorogenic acid was 3.81~152.50 ?g?mL-1(r=0.999 8), and the average recoveries of the capsules, granules and dripping pills were 99.03%(RSD=2.02%), 99.35%(RSD=1.16%),98.11%(RSD=1.51%). CONCLUSION: The method is sensitive, simple and accurate for the quality control and content determination of 3 kinds of Qingkailing preparations.
9.Preliminary clinical significance of determination for serum insulin-like growth factor binding protein-3 protease activity
Shuwen QIN ; Yifan SHI ; Jieying DENG
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Objective To evaluate the clinical significance of determination for serum insulin like growth factor binding protein 3 (IGFBP 3) protease activity. Methods Serum IGFBP 3 protease activity in normal persons, parturient pregnant women, acromegalic patients and patients with growth hormone deficiency (GHD) was determined by Western blot technique. Results Serum IGFBP 3 protease activity in parturient pregnant women, acromegalic patients,normaladultsanduntreatedGHDpatientswere (75.2?2.2)%, (68.6?3.9)%, (22.7?3.1)% and (13.4?4.2)% respectively. Serum IGFBP 3 protease activity in GHD increased to (29.0?6.8)% after treatment with recombining human somatropin (rhGH) for six months. Conclusions Serum IGFBP 3 protease activity is modulated by GH and affects serum levels of members of GH IGF Ⅰ axis.
10.A Comparison of Therapeutic Effect and Safety of Bisoprolol and Carvedilol in Treatment of Chronic Congestive Heart Failure
Guolan DENG ; Jing FENG ; Jian QIN
China Pharmacy 2001;0(11):-
OBJECTIVE:To compare the therapeutic effect and safety of Bisoprolol and Carvedilol in the treatment of chronic congestive heart failure(CHF).METHODS:40 patients with CHF,who had received conventional anti-HF therapy UCG determination of left ventricular ejection fraction(LVEF)