1.Analysis on Government Health Investment Process in Shanxi:an example of central special funds
Yunxia ZHANG ; Mei LI ; Jing YUAN ; Xinli GENG
Chinese Health Economics 2013;(11):49-50
Objective: To find out existed problems in government health investment process, it needs to increase efficiency rate of government health investment’s special fund. Methods: Through making statistics on the efficiency rate of central special funds in Shanxi government health investment, and analysis on the appropriate process of financial department of all levels. Results: Central government special funds distribution interval is too long, efficiency rate is low. Conclusion: It needs to accelerate special fund distribution and to carry out financial management model from province to county and enhance financial supervision.
2.Studies on sLe~(a/x) and Hematogenous Metastasis of Cancer
Yun-Li PENG ; Jing LI ; Mei-Yu GENG ;
China Biotechnology 2006;0(06):-
The expression of sLea/x which correlates with conventional histopathologic parameters serves as a useful indicator for the prognosis of metastatic disease. The bindings between sLea/x and their common ligand E-selectin initiate hematogenous metastasis of cancer. Certain bioactive conformation is crucial for the interaction between sLea/x and their ligands. Thus, a new class of compounds that mimic the structures of sLea/x can potently inhibit not only their functional bindings to selectins, but also the metastasis of cancer. This review is mainly on the sLea/x molecular structure,biosynthesis,distribution, especially the relationship between sLea/x and hematogenous metastasis of cancer and the design of drugs that mimic the structures of sLea/x.
3.Effect of sulfated polymannuroguluronate on Tat induced proinflammatory cytokines release in THP-1 cells and its mechanism of action.
Bin HUI ; Mei-yu GENG ; Jing LI
Acta Pharmaceutica Sinica 2006;41(4):338-341
AIMTo investigate the effects of sulfated polymannuroguluronate (SPMG), a novel candidate anti-AIDS drug in Phase II clinical trial, on Tat-induced release of proinflammatory cytokines (i.e., TNFalpha, IL-1beta and IL-6) and its related mechanism.
METHODSThe effects of SPMG on Tat induced TNFalpha (4 h), IL-1beta and IL-6 (6 h) secretion in THP-1 cells were measured by ELISA. Western blotting analysis was used to study the effects of SPMG on Tat induced PKCzeta, PKCtheta and PKCsigma phosphorylation.
RESULTSSPMG (50 to 100 microg x mL(-1)) markedly suppressed TNFalpha, IL-1beta and IL-6 secretion in Tat activated THP-1 cells. In THP-1 cells the phosphorylation levels of PKCzeta, PKCtheta and PKCsigma significantly increased following Tat stimulation, and only PKCsigma phosphorylation levels was inhibited by SPMG (50 to 100 microg x mL(-1)).
CONCLUSIONSPMG suppresses the secretion of proinflammatory cytokines in THP-1 cells may be by inhibiting PKCsigma activation.
Cell Line, Tumor ; Gene Products, tat ; pharmacology ; Humans ; Interleukin-1beta ; secretion ; Interleukin-6 ; secretion ; Isoenzymes ; metabolism ; Phosphorylation ; Polysaccharides ; pharmacology ; Protein Kinase C ; metabolism ; Protein Kinase C-delta ; metabolism ; Protein Kinase C-theta ; Tumor Necrosis Factor-alpha ; secretion
4.A comparative study of HPV infection in condyloma acuminate tissues of vulva,vagina and cervix
Huimin SHAN ; Jianxiang GENG ; Jing MEI ; Xiurong LONG ; Lin XIA ; Hongjing WANG ; Xue ZHAO
International Journal of Laboratory Medicine 2016;37(16):2239-2241
Objective To study the distribution status and clinical significance of human papillomavirus(HPV) infection geno‐types in condyloma acuminate(CA) tissues of vulva ,vagina and cervix .Methods The gene‐chips combined with polymerase chain reaction (PCR) technology were utilized for detecting 23 kinds of HPV genotypes in tissue specimens from 63 cases of vulval CA , 61 cases of vaginal CA and 65 cases of cervical CA .Their clinical pathological data were analyzed .Results In 63 cases of vulval CA ,56 cases were HPV positive with the HPV infection rate of 88 .89% (56/63) ,in 61 cases of vaginal CA ,55 cases were HPV positive with the HPV infection rate of 90 .16% (55/61) ,and in 65 cases of cervical CA ,62 cases were HPV positive with the HPV infection rate of 95 .39% (62/65) .Conclusion HPV infection is closely related to the CA pathgenesis in vulva ,vagina and cervix . HPV6 and HPV 11 are main stream genotypes ,in which vulval CA is most common .The gene‐chips combined with PCR technology is a method suitable for HPV typing diagnosis ,and has the characteristics of good sensitivity and high specificity ,which has an im‐portant significance for clinical diagnosis ,treatment and vaccine study of CA in femal vulva ,vagina and cervix .
5.Comparative study on fluorescent quantitation polymerase chain reaction and gene-chips typing method in genotyping HPV
Xiurong LONG ; Jianyun LAN ; Jianxiang GENG ; Xuemei FAN ; Lin XIA ; Hongjing WANG ; Jing MEI ; Xue ZHAO
International Journal of Laboratory Medicine 2015;(23):3385-3387
Objective To compare the sensitivity of fluorescent quantitation polymerase chain reaction (fluorescent quantitation method) and gene‐chips typing method(gene‐chips method) in the detection of human papillomavirus(HPV) ,and to analyse differ‐ences and clinical significance .Methods A total of 246 women were selected as subjects ,among them ,111 cases of cervical exfolia‐ted cells and 135 cases of cervical tissues were collected and detected .15 kinds of high‐risk HPV genetypes were detected in all sub‐jects by using fluorescent quantitation method and gene‐chips method respectively ,and the detection results were compared . Results The sensitivity of the fluorescent quantitation method in detecting HPV was 55 .28% and that of the gene‐chips method was 55 .69% ,there was no statistically significant difference in sensitivity between the two methods (P>0 .05) .The two methods had relative high conformance(κ=0 .745) .The positive rate of HPV infection was increased with the progression of cervical dis‐ease .Conclusion The fluorescent quantitation method and the gene‐chips method have a relative high conformance ,and both with high sensitivity in detecting HPV .The severity degree of cervical cytological and histological changes may be positively correlated with HPV infection .
6.Construction and identification of a lentiviral vector mediating RNA interference of tyrosine kinase B gene
Mei LI ; Yu ZHAO ; Chao JING ; Deqin GENG ; Baixiang ZHUANG ; Hongbin FAN
Chinese Journal of Behavioral Medicine and Brain Science 2013;(4):370-373
Objective To construct a tyrosine kinase B(TrkB) targeted RNA interference (RNAi) lentiviral vector.Methods Four oligonucleotides targeting rat TrkB gene were synthesized and cloned into lentiviral vector pXZRNAi 1.0 to construct recombinant lentiviral vectors pXZRNAi-shTrkB-1,2,3,4.Neural stem cells prepared from rat hippocampus were infected with these high-titer viruses.Real-time PCR was employed to detect the TrkB mRNA expression and western blot was used to assess the gene silencing efficacy of these recombinants.Results Enzyme digestion and DNA sequencing results demonstrated that these shRNAs were correctly inserted into lentiviral vectors and the four recombinants were constructed successfully with the titer of 8.6 × 105cfu/ml.The infection efficiency of the letivirus on neural stem cells reached 80%.Compared with the uninfection group,the expression levels of TrkB mRNA in neural stem cells decreased significantly after transfected with pXZRNAi-shTrkB-3 and 4((66.7 ± 5.5) % and(76.8 ± 4.9) % respectively,P < 0.05) ; and the protein expression levels were also significantly decreased ((68.5 ± 4.3)% and (78.2 ± 5.1)% respectively,P < 0.05).Conclusion The lentiviral vectors for TrkB have been successfully constructed with high yield of lentivirus,which provides versatile method for assessing gene function in neural stem cells.
7.Recent progress in the study on antitumor drugs targeting hypoxia-inducible factor-1.
Jing-Jian WANG ; Jing LI ; Mei-Yu GENG
Acta Pharmaceutica Sinica 2008;43(6):565-569
Hypoxia-inducible factor-1 (HIF-1), as a transcription factor, plays an important role in the adaptation to hypoxic microenvironment within tumors. It can induce a series of genes transcription that participate in angiogenesis, glucose metabolism, cell proliferation, and cell migration/invasion. Thus HIF-1 not only allows cancer cells to survive in hypoxic microenvironment, but also makes the tumor more aggressive. Moreover, HIF-1 also induces tumors to acquire resistance to chemo-/radio-therapy, and is related to poor prognosis. HIF-1 emerges gradually as a potential target to develop new antitumor drugs. This paper reviews recent progress in this field.
Amphotericin B
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pharmacology
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Animals
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Antineoplastic Agents
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pharmacology
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Echinomycin
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pharmacology
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Humans
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Hypoxia-Inducible Factor 1
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antagonists & inhibitors
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genetics
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metabolism
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Indazoles
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pharmacology
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Sirolimus
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analogs & derivatives
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pharmacology
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Topotecan
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pharmacology
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Transcription, Genetic
8.Analysis of genotype spectrum in condyloma acuminate tissues HPV infection of female anus and anal canal
Jinhao ZHANG ; Weimin CAI ; Jianxiang GENG ; Lin XIA ; Hongjing WANG ; Kunlan WU ; Xin SHAO ; Jing MEI ; Xue ZHAO
International Journal of Laboratory Medicine 2015;(1):30-32
Objective To study the genotypes of human papillomavirus (HPV)infection in female anus and anal canal condylo-ma acuminata(CA)tissues and their clinical significance.Methods 23 kinds of HPV-DNA were extracted from the paraffin-embed-ded anus and anal canal tissue samples in 140 cases of female CA and detected by using PCR combined with the gene-chips tech-nique.Furthermore the related clinical pathological data of the patients were analyzed.Results Among 140 female anus and anal ca-nal CA tissue samples,103 cases were HPV positive and the total HPV infection rate was 73.57%(103/140).Among them,68 ca-ses were single type HPV infection,the positive detection rate was 48.57%(68/140)and 35 cases were multiple types HPV infec-tion,the positive detection rate was 25.00% (35/140).In single type HPV infection,34 cases were HPV11 and the positive detec-tion rate was 24.29% (34/140),HPV11 was the main infection type,followed by HPV 6 in 27 cases,its positive detection rate was 19.29%(27/140).In the multiple types HPV infection,13 cases were HPV 6 + 11,accounting for 37.14% (13/35 )of multiple types infection,followed by HPV11 +18 in 3 cases and HPV 6+11+16 in 3 cases,each accounting for 8.57%(3/35)of the multi-ple types infection.Conclusion HPV 6,11 ,6+11,11 +18 and 6+11+16 are the main infection genotypes in female anus and anal canal CA.PCR combined with the gene-chips technique is a diagnostic method more suitable for clinical development of HPV geno-typing detection,which has high sensitivity and good specificity and is especially suitable for the molecular epidemiology study of HPV infection.
9.Effect of CKJ recipe containing serum on activation of rat primary hepatic stellate cells, TGF-beta1 and its receptors.
Liang CHEN ; Qin FENG ; Jing-hua PENG ; Lin LIU ; Chun-geng LIANG ; Ya-mei HAI ; Yi-yang HU
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(2):210-215
OBJECTIVETo observe the effect of CKJ Recipe (consisting of Cordyceps sinensis polysaccharide, amygdaloside, and gypenosides) containing serum on the activation of rat primary hepatic stellate cells (rHSCs) and to explore its pharmacological mechanism.
METHODSrHSCs were isolated form liver and cultured for four days. Then they were divided into the normal control group, the model group, and the CKJ group. rHSCs in the model group and the CKJ group were treated with 2.5 ng/mL transforming growth factor beta1 (TGF-beta1) in serum-free DMEM for 24 h. Serum free DMEM (containing no TGF-beta1) was taken as the control for the normal control group. rHSCs in the CKJ group were treated with 5% CKJ-containing serum for 24 h. rHSCs in the other two groups were treated with 5% blank serum for 24 h.The protein expression level of a smooth muscle actin (alpha-SMA) was determined using high throughput screening (HCS) and Western blot. mRNA expression levels of alpha-SMA, collagen I (Col-I), platelet-derived growth factor receptor beta (PDGF-betaR), TGF-beta1, transforming growth factor beta receptor 1 (TGF-betaR1), and transforming growth factor beta receptor 2 (TGF-beta R2) were detected using quantitative RT-PCR.
RESULTSCompared with the normal control group, the protein expression level of alpha-SMA, mRNA expression levels of alpha-SMA, Col-I, PDGF-betaR, TGF-beta1, TGF-betaR1, and TGF-betaR2 significantly increased in the model group (P<0.05, P<0.01). Compared with the model group, the protein expression level of alpha-SMA, mRNA expression levels of alpha-SMA, Col-I, PDGF-betaR, TGF-beta1, TGF-beta1, and TGF-beta R2 significantly decreased in the CKJ group (P<0.05, P<0.01).
CONCLUSIONCKJ containing serum could inhibit the protein expression level of o-SMA, which was probably related with inhibiting TGF-beta1 and its related receptors.
Animals ; Cells, Cultured ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Hepatic Stellate Cells ; metabolism ; Rats ; Transforming Growth Factor beta ; Transforming Growth Factor beta1 ; metabolism
10.Distribution of HPV infective genotypes in condyloma acuminatum tissues of cervix
Weimin CAI ; Yanjing KAN ; Jianxiang GENG ; Xiurong LONG ; Jing MEI ; Hongjing WANG ; Lin XIA ; Xubo WANG ; Xue ZHAO
Chinese Journal of Clinical and Experimental Pathology 2015;(4):395-399
Purpose To compare the distribution of 23 kinds of human papillomavirus ( HPV) genotypes in tissues of condyloma acu-minata ( CA) of cervix in 120 women and its clinical significance. Methods Polymerase chain reaction ( PCR) and gene-chips tech-nology were utilized for the detection of 23 kinds of HPV genotypes in tissue specimens from 120 cases of CA in cervix and related ma-terials of all subjects were conducted and analyzed. Results There were 115 positive cases in 120 women with CA in cervix and the rate of total HPV infection was 95. 83% (115/120). The rate of single type was 70. 83% (85/120) and multiple types was 25. 00%(30/120). The predominant type of single infection was HPV11 and the infective rate was 45. 00% (54/120), followed by HPV6 (22. 50%, 27/120). Otherwise, the predominant type of multiple infections was HPV6+11 with the infective rate of 20. 00% (6/30), and HPV11+16 infection accounted for 10. 00% (3/30). Conclusions HPV11, 6, 6+11 and 11+16 are the main genotypes in the pathogenesis of CA in cervix in 120 women. PCR and gene-chip technology can detect single and multiple HPV genotyping in tis-sues of CA in cervix with high sensitivity and specificity. Detection of HPV genotypes could be used to understand the prevalence situa-tion of HPV infection in tissues of CA and tumors of cervix and further to provide references for the research and development of HPV vaccine in women.