AIM: To investigate the effects of globular adiponectin (gAd) on the expression of adiponectin receptor 1 (AdipoR1) in human umbilical vein endothelial cells (HUVECs), and on the apoptosis induced by advanced glycation end products (AGEs). METHODS: HUVECs were treated with the indicated concentrations of AGEs for 24 h or 48 h in vitro. The cells in gAd treatment group were pretreated with gAd for 24 h, and then were treated with AGEs for another 24 h or 48 h. Cell variability was quantified by MTT assay. Apoptotic cells were detected by flow cytometry with Annexin-FITC/PI double staining. AdipoR1 mRNA in the cells was determined by quantitative real time reverse transcriptase-polymerase chain reaction (RT-PCR). RESULTS: The viability of HUVECs treated with AGEs decreased significantly as compared to the cells treated with HSA (control, P<0.05). Under the same condition of AGEs exposure, the viability of the cells treated with gAd was greatly higher than that of the cells without gAd treatment (P<0.01). The apoptotic rate of HUVECs was significantly elevated by AGEs treatment vs HSA treatment observed by Annexin V-FITC/PI double staining analysis with flow cytometry (P<0.05). Under the condition of AGEs stimulation, the apoptosis of HUVECs was decreased by pretreatment with gAd as compared to that of the cells without gAd treatment (P<0.01). Measured by quantitative real time PCR, AGEs decreased the expression level of AdipoR1 mRNA and gAd increased the expression of AdipoR1 mRNA contrarily (P<0.05). CONCLUSION: AGEs increase the apoptotic rate of HUVECs in a concentration dependent manner and gAd promotes the AdipoR1 mRNA expression.

Objective To observe the effect of triptolide combined with gemcitabine on proliferation and apoptosis of pancreatic cancer cells ,and to analyze the relevant mechanisms .Methods After treated with TPL ,GEM or TPL combined with GEM in vitro , PANC-1 cells proliferation was accessed by MTT assay and the interaction between the two drugs was calculated .Apoptotic mor-phological changes and apoptosis rate of the cells were investigated by Hoechst 33258 staining and flow cytometry ,respectively .The expression of signal transduction and transcription factor 3(STAT3) ,cysteine aspartate specific proteases-3(caspase-3) protein were detected by Western blot analysis .Results TPL ,GEM or TPL combined with GEM could significantly inhibit the prolifera-tion of PANC-1 cells ,and the combination of the two drugs had a synergistic effect .The cells of the TPL group ,GEM group ,as well as the combined group showed typical apoptotic morphological changes .Compared with the TPL group and GEM group ,the number of apoptotic cells of the combined group increased significantly .Compared with the control group ,the cells apoptosis rate of the TPL group ,GEM group and combined group was significantly increased (P< 0 .05) ,and the apoptosis rate of the the combined group was significantly higher than that of the monotherapy group(P<0 .05) .TPL combined with GEM synergistically inhibited p-STAT3 protein expression and activated caspase-3 protein expression .Conclusion TPL combined with GEM can synergistically in-hibit proliferation and induce apoptosis of pancreatic cancer PANC-1 cells ,its mechanism is related to the inhibition of STAT 3 sig-naling pathway ,promotion the expression of caspase-3 protein .

Objective To compare the efficiency and safety of regimens of empiric antibiotic therapy in neutropenic hematological maligence patients.Methods The clinical data of empiric antibiotic therapy for 260 febrile episodes in 125 neutropenic hematological maligence patients were analyzed retrospectively.Results A total of 45 febrile episodes were treated with tazocin plus amikacin(regimen TA).80 episodes were treated with ceftazidime plus amikacin(regimen CA),75 episodes with imipenem plus amikacin(regimen IA) and 60 episodes with maxipime plus amikacin(regimen MA).The medians of initial therapy in each regimen were 7～8 days.Percentage of satisfactory response had no significant difference in episodes treated with regimens TA,IA and MA(65%,70% and 79% respectively),and it was better than regimen CA(P

Object To investigate the effects of ultra-fine powder technique and granularity of pellets on dissolution rate in vitro. Methods The dissolution rate of ultra-fine ERMIAO PILL with different granule diameters in vitro was measured and compared with the index of berberine by UV spectro-photometry. Results The dissolution parameters T 50 and T d of four kinds of ultra-fine ERMIAO PILL are 61.60, 19.48, 17.84, 8.97 min and 102.3, 33.29, 26.98, 14.77 min, respectively. Those of general powder ERMIAO PILL with granule diameter of 2.4 mm are 89.61 and 155.68 min. Conclusion The dissolution rate of ultra-fine powder is quicker than that of general powder, and the rate increases with the granularity of PILL decreasing.

Objective To construct a recombinant adenovirus vector containing the gene of major histocompatibility complex(MHC)class Ⅱ transactivator(C Ⅱ TA).Methods The restriction fragment of CIITA was inserted into pUC57 vector with EeoR Ⅰ and Xho Ⅰ.Then,recombinant plasmid pShutde-GFP-CMV CⅡTA was constructed with EcoR Ⅰ and Sal Ⅰ,and was confirmed by restriction enzyme digestion and sequeneing.After the treatment with Ⅰ-Ceu Ⅰ and Ⅰ-See Ⅰ,the fragment C Ⅱ TA from recombinant plasmid DShuttle-GFP-CMV.CⅡTA Was inserted into vector pAdxsi.And the pAdxsi-GFP-C Ⅱ TA wag packed into liposome,and was transfected to 293 cens.Results Recombinant plasmid pShuttle-GFP-CMV-C Ⅱ TA Was constructed successfully. After packed into vector pAdxsi, and transfected to 293 cells, significant virus Dlaques were observed,which showed the successful homologous recombination.The titer of the purified AdC Ⅱ TA was 2.0×10~(11) PFU/ml.Conclusions Recombinant adenovirus AdC Ⅱ TA containing gene of MHC class Ⅱ transactivator was established successfully.

Objective:To investigate the affects of NOD2 on rapamycin (Rap)induced autophagy and on the proliferation and mi-gration of tongue squamous carcinoma SCC-1 5 cells.Methods:① Synthesized NOD2 over-expression plasmid and NOD2-shRNA were transfected into SCC-1 5 cells respectively.②Normal control SCC-1 5 cells,NOD2 over-expression cells and NOD2-shRNA cells were treated with Rap to induce autophagy.Then,the expression of LC3 and Beclin-1 was examined by Western blot.Cell pro-liferation was tested by MTT assay.Cell migration was assessed by wound healing assay.Results:①After Rap treatment,the expres-sion of protein LC3-Ⅱand Beclin-1 in NOD2 over-expression cells increased(P <0.05)and in NOD2-shRNA cells were suppressed (P <0.05).② Compared with control group,the proliferation and migration ability were decreased in NOD2 over-expression cells (P <0.05),but in NOD2-shRNA cells the proliferation and migration ability were increased(P <0.05).Conclusion:NOD2 can up-regulate the autophagy and suppress the proliferation and migration of tongue squamous SCC-1 5 cells.

Aim To develop a model for screening DPPIV inhibitor from Chinese Herbal medicine.Methods With Gly-Pro-PNA as a substrate,DPPIV activity was assayed by the chromogenic substrate.The concentration of DPPIV and Gly-Pro-PNA,temperature,pH and reaction time were optimized.Results The optimal enzymatic reaction system was as follows:DPPIV 0.5 U?L-1,Gly-Pro-PNA 0.262 ?mol?L-1,37℃,pH 8.2,reaction for 60 min.Further more,many kinds of herbal abstracts were screened and some had the DPPIV inhibitory function,such as Leech,Poria cum Radix Pini and Buddleja officinalis Maxim.Conclusion The model can be used to screen for DPPIV inhibitors in vitro.

Objective To set up a clean-up method using gel permeation chromatography(GPC)and ENVI-Carb-SPE.The residues of triadimefon and its metablites,triadimenol A and triadimenol B in ginseng were detected by GC-MS with negative chemical ionization(NCI).Methods The sample was extracted with acetone and the extract was cleaned using GPC and ENVI-Carb-SPE.Based on GC-MS(NCI)the pesticides were separated on a DB-5MS column using a temperature program and were detected with a mass selective detector in selective ion monitoring(SIM)mode.The reference solution was prepared by the blank sample extract to overcome the matrix effect,the external reference method was used to detect.Results Three pesticides were separated within 10 min.The average spiked recoveries in three levels were 90%—105% with relative standard deviations(RSD)below 6%(n=6)in roots and stems.The limits of detection(LOD)of triadimefon and triadimenols were 0.1 and 10 ?g/L.The precision was below 2%(n=6).Conclusion The method is sensitive for the residue analysis of three pesticides and could be used to the triadimefon and triadimenols detection and security control in ginseng.

Symptomatology and medical history taking are the focuses of diagnostics study. With the improvement of teaching and learning, students can basically master the standard process of clinical inquiry of chief complaints to family history efficiently. However, due to the lack of systematic learning of clinical diseases, it's difficult for most students to form a targeted, logical and speculative inquiry thinking pattern, so they are unlikely to write a medical history of present illness that reflects their thinking on disease inclusion and exclusion. In this study, we come up with the characteristics and defects of symptomatology teaching at present, and put forward a new idea of symptomatology teaching by introducing clinical manifestations of diseases and examples of inquiry.