Objective To study the effects of γ-IFN on the expression of HLA-G mRNA in primary cultured astrocytoma cells. Methods Different concentrations of γ-IFN were added to primary cultured cells, and HLA-G mRNA were detected by RT-PCR. Results After γ-IFN treatment, HLA-G mRNA can not be determined from HLA-G originally negative astrocytoma cells. The expression of HLA-G are up - regulated in all original HLA-G positive astrocytoma cells in a dose-dependent manner. Conclusion γ-IFN can increase the ex-pression of HLA-G gene in the primary cultured astrocytoma cells which HLA - G are originally positive.

Objective To investigate the relationship between snoring and newly-diagnosed type 2 diabetes mellitus among elderly urban and rural residents in Renqiu of Hebei province.Methods By random clustered sam-pling inspection,the residents aged 60 to 70 years old were selected in the study,the questionnaire investigation by an-thropometric measurements and laboratory tests were performed in 5 010 elderly people.Screen for 3 604 people who had no previous history of diabetes and currently not to control blood sugar by diet,exercise,medication.The average age was (64.32 ±3.06)years,including 1 608 male(44.6%) and 1 996 female cases(55.4%),snorers 994 cases (27.6%),non-snorers 2 610 cases(72.4%).The patients were followed up for one year.The correlation between snoring and newly-diagnosed type 2 diabetes mellitus was analyzed.Results There were 217 cases(6.0%) of new-ly-diagnosed type 2 diabetes mellitus,which accounted for 79 cases of snoring(36.4%),3 387 cases of non-dia-betic group,which accounted for 915 cases of snoring(27.0%),the difference between the two groups was significant (χ2 =9.003,P<0.05).Took the newly-diagnosed type 2 diabetes mellitus as the dependent variable,univariate analysis showed that gender(OR=0.479,95% CI:0.639~0.852),history of hypertension(OR=1.463,95% CI:1.111~1.927),family history of diabetes(OR=1.768,95% CI:1.259~2.183),history of stroke or TIA(OR=1.549,95%CI:1.106~2.168),central obesity(OR=1.658,95% CI:1.016 ~1.448),BMI≥28kg/m2 (OR=1.063,95% CI:1.025 ~1.102),fasting glucose(OR=2.065,95% CI:1.854 ~2.299),fasting insulin levels (OR=1.021,95%CI:1.008 ~1.035),cholesterol(OR=1.216,95% CI:1.051 ~1.407),triglycerides(OR=1.188,95%CI:1.089~1.296),snoring(OR=1.547,95% CI:1.161 ~2.060) were related with newly-diag-nosed type 2 diabetes mellitus.Multivariate logistic regression analysis showed that gender(OR=0.595,95% CI:0.368~0.963),history of stroke or TIA(OR=1.586,95%CI:1.085~2.318),fasting glucose(OR=2.059,95%CI:1.833~2.312),snoring(OR=1.592,95% CI:1.089~2.328) were independent risk factor for newly-diag-nosed type 2 diabetes mellitus.Conclusion People aged 60 to 70 in Renqiu suffered newly-diagnosed type 2 diabe-tes mellitus population prevalence of snoring, snoring is closely related to the occurrence and development of type 2 diabetes,type 2 diabetes is increased independent risk factor.Positive and effective screening and control on snoring can effectively reduce the incidence of type 2 diabetes.

To study the chemical components and the antifungal activity of extraction from conidia of Trichoderma viride LTR-2.The extraction were obtained by distilling with Methylene dichloride from conidia of Trichoderma viride LTR-2 cultured on wheat bran solid matrix.Antifungal activity were determined by mycelium growth method.The chemical components of the extraction were analysed by GC-MS,the relative components in the extraction were determined by area normalization.The extraction not only have broad-spectrum control,showed antibiosis against eleven different plant fungal pathogens in PDA dish,such as Rhizoctonia solani,Alternaria brassica,Verticillium dahliae,Macrophoma kawatsukai,Fusarium moniliforme,Botrytis cinerea,Rhizoctonia cerealis,Fusarium oxysporum f.sp.vasinfectum,Bipolaris sorokinana,Fusarium graminearum,Alternaria.mali,but also have high inhibitory effect,and had 89.3% suppressive rate to Rhizoctonia cerealis.About sixty components were separated and identified by GC-MS,majority components were Hydrocarbon,the number of the Hydrocarbon were fourty-three kinds.Ergosterol was the major chemical components of the extract,and has 41.90% content.Other components comprised:Ketone,Organic acid,Alcohol,Ene,et al.Conclusion:The extraction from conidia of Trichoderma viride LTR-2 have antifungal activity.The extration comprised 2H-Pyran-2-one,5,6-dihydro-6-pentyl,it has 2.35% content.reference others literature,2H-Pyran-2-one,5,6-dihydro-6-pentyl may be the suppressive component of the extration.

In this paper, based on the special influence of supramolecular chemistry on the basic theory of Chinese medicines ( CM) , the authors further analyzed the history of meridian tropism and natural origins of CM organisms and explained CM ingredients and the universal regularity of the automatic action of the supramolecular "imprinting templates" hole channel structure. After entering human bodies, CMs, as the aggregation of supramolecular "imprinting templates" , automatically seek supramolecular subjects that are matched with their "imprinting templates" in human meridians and organs for the purpose of self-recognition, self-organization, self-assembly and self-replication, so as to generate specific efficacy in meridians and organs, which is reflected as the meridian tropism phenomena at macro level. This regularity can be studied by in vitro and in vivo experimental studies. In vitro methods are mostly supra molecular structure analysis and kinetic and thermodynamic parameter calculation; Whereas in vivo methods are dominated by the analysis on object component distribution, chromatopharmacodynamic parameters and network chromatopharmacodynamic parameters; Particularly, the acupoint-medicine method can simplify to study the supramolecular subject-object relations. Consequently, CM's'meridian tropism reveals the universal regularity for interactions of macromolecular and micromolecular "imprinting templates" of subjects and objects in natural organisms. As the first barrier for the material base of the CM theory and breakthrough in the modernization of the basic CM theory, meridian tropism plays an important role in studies on basic theories of the basic CM theory.
Acupuncture Points ; Drug Therapy ; Drugs, Chinese Herbal ; chemistry ; Humans ; Medicine, Chinese Traditional ; Meridians

Pure culture of Phlebopus portentosus was inoculated in the roots of coffee tree. The results indi-cated that the young fruit bodies would come out around the rhizomes of host tree after inoculation in 30 to 90 days, single or cluster, 3 to 4 days for mature, weight 20.0 g to 62.0 g. Brown rhizomorph and hyphae can be seen on the seedlings`rhizome, main root and side root while nothing is on the tip of the root.It was found that rhizomorph on the surface of roots would die after inoculation in 90 days in pot.

The paper, based on the previous publication as special impact of Chinese medicine theories on supramolcular chemistry, aims to analyze the natural origination for the Chinese medicine and to explain the special impact of "Qi chromatography" reaction on "imprinting templates" in supramolcular host of human being with Chinese medicine, in order to reveal the CM's properties of "medical element" with "imprinting templates" autonomisation generally took place in natural supramolecules, and also to discover that the CM's pharmacology are satisfied with its own approaches different form western pharmacology. It was decided, for CM's pharmacology guided by CM's theories, to "Qi chromatography" relations between the CM's ingredient groups and the meridian zang-fu viscera. The supramolcular chemistry played an all-through role in procession of making macro-regularities and special presentation on behavior of "Qi chromatography" impulse owning to the matching action of all kinds of ingredients on the meridian zang-fu viscera with similar "imprinting templates". The CM's pharmacology were guided by CM's theories, owing to its interpretation of supramolecular chemistry. The pharmacology was achieved to construct up completely on base of classical chemical single molecular bonds whereas the CM's pharmacology be configured to big building by way of "imprinting templates" as multi-weak bonds among "supramolecular society". CM's pharmacology was supramolcular pharmacology dealt with "molecular society" on the base of western pharmacology, and employed to double research approaches both math-physical quantitative representation on macroscope and qualitative analyses in microscope.
Animals ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Meridians ; Molecular Imprinting ; Qi

Aged ; Female ; Humans ; Hypertriglyceridemia ; blood ; epidemiology ; Male ; Middle Aged ; Prevalence ; Uric Acid ; blood

OBJECTIVE: To investigate the healing process at the interface between oral epithelium and a titanium implant with titanium dioxide on the surface and whether a good epithelial barrier could be formed. METHODS: Titanium implants with titanium dioxide on the surface were placed in the mandibular alveolar area of Beagle dogs after their premolars had been removed three months previous. On the 15th day, second month and loading second month after implantation specimens were taken and examined after HE staining as well as by transmission electron microscopy. RESULTS: Fifteen days after implantation the epithelial collar was formed, junctional epithelium actively regenerated and attachment to the matrix on the surface of the implant occurred by hemidesmosomes. Two months after implantation junctional epithelium was increasing, showing three to four layers consistent with each other. Junctional epithelium appeared to be generated when stimulated by inflammation and shaped into epithelium rete pegs after loading for two months. CONCLUSION: Oral junctional epithelium can attach very well to titanium implants with titanium dioxide on the surface which also provides a biological barrier.

OBJECTIVETo investigate the possible influence of HBV and its antigens on the expressions of JAK-STAT signal transduction pathway molecules and the antiviral proteins of IFN alpha.

METHODSThe HepG2 cells were transfected with pSM2, pHBS2-S and pHBc-EGFP plasmids which express HBV whole particles or S-antigen, Pre-S antigen and core antigens. The infectious supernatant from HepG2.2.15 cells and the pured HBV proteins which contained the S, Pre-S antigens were used to treat the HepG2 cells. Northern blot and RT-PCR were applied to analyse the expressions of the antiviral proteins MxA, 2' -5' OAS, 9-27 and the JAK-STAT signal transduction pathway molecules STAT1 in HepG2 cells responded to the IFN alpha treatment.

RESULTSThe HepG2 cells transfected with pSM2, pHBS2-S and pHBc-EGFP plasmids could express whole HBV particles and HBsAg, Pre-S antigen and HBcAg. The quantitation of expressed HBV particles and antigens increased significantly during the course of transfection. Northern blot hybridization analysis indicated that the HepG2 cells expressed IFN alpha antiviral proteins MxA, 2' -5' OAS and 9-27. When transfected with pHBV-dimer, pHBS2-S, pHBc-EGFP plasmids, the IFN/A antiviral proteins MxA, 2' -5' OAS and 9-27 in transfected cells were reduced greatly as compared to the un-transfected HepG2 cells, and the expressed antiviral proteins decreased sharply with the development of transfection time. Furthermore, the expression of IFN alpha JAK-STAT signal transduction pathway molecule STAT1 was also inhibited with the expression of HBV particles and HBV antigens in transfected HepG2 cells.

CONCLUSIONSThe HBV and its antigens influence the expressions of IFN alpha JAK-STAT signal transduction pathway molecules and antiviral proteins in the hepatocellular models in vitro. It is indicated that HBV might possess the activity to antagonise or counteract the IFN alpha antiviral action.

2',5'-Oligoadenylate Synthetase ; metabolism ; GTP-Binding Proteins ; metabolism ; Hep G2 Cells ; Hepatitis B Antigens ; immunology ; Hepatitis B virus ; immunology ; Humans ; Interferon-alpha ; metabolism ; Myxovirus Resistance Proteins ; RNA-Binding Proteins ; metabolism ; STAT1 Transcription Factor ; metabolism ; Signal Transduction ; Transfection

OBJECTIVETo construct an eukaryotic expression vector of open reading frame of unknown KH gene (KH-ORF), and investigate its effect on cell proliferation.

METHODSThe pCI-neo-KH-ORF expression vector was constructed by DNA recombinant technique and was introduced into COS-7 cells and K562 cells by lipofectactin-mediated DNA transfection. Expression of KH-ORF mRNA was detected by RT-PCR. The effect of KH-ORF on cell cycle of COS-7 cells and K562 cells was evaluated by flow cytometry (FCM). Effect on cell proliferation of COS-7 cells was tested by MTT assay and that on K562 cells was analyzed by growth curves and LDH activity measurement.

RESULTS(1) KH-ORF mRNA was expressed both in COS-7 cells and K562 cells. (2) The cell cycle and cell proliferation of COS-7 cells were unaffected significantly. (3) The proportion of cells in S phase was increased in pCI-neo-KH-ORF-transfected K562 cells; and growth curves and LDH activity indicated enhanced cell proliferation.

CONCLUSIONKH gene may be a leukemia gene related to proliferation of K562 cells.

Animals ; COS Cells ; Cell Proliferation ; Cercopithecus aethiops ; Gene Expression Regulation, Neoplastic ; Genes, Neoplasm ; genetics ; physiology ; Genetic Vectors ; Humans ; K562 Cells ; L-Lactate Dehydrogenase ; metabolism ; Open Reading Frames ; genetics ; physiology ; Plasmids ; RNA, Messenger ; biosynthesis ; genetics ; RNA-Binding Proteins ; genetics ; S Phase ; Transfection