Objective Regenerating genes express mainly in gastrointestinal tissues and the injured regenerating pancreatic tissues,which can promote the regeneration of pancreatic β cells and other tissue cells.In recent years,researches on Reg family mainly involved the gene structure of various subtypes of Reg,and its role in diabetes,gastrointestinal cancer,inflammation,anti-microbial and the related mechanisms.Among the various subtypes of Reg,regenerating geneⅢ(Reg3) plays a particularly crucial role in these diseases.Therefore,Reg3 is a promising target for the treatment of these diseases.Based on the relationships of Reg3 with a variety of diseases,our group devote to the role of Reg3 [human REG3A,and mouse Reg3γ(Reg3g)] in type 1 diabetes,inflammation-linked pancreatic carcinogenesis,and the immunological changes participated in these processes.Hence,this review will summarize serial studies on Reg3 and the feasibility of it as drug targets.

ObjectiveTo observe the effect of community-based rehabilitation (CBR) on older stroke patients in ability of activities of daily living (ADL).Methods50 older stroke patients were randomly divided into the rehabilitation group and control group. The rehabilitation group was treated with motor function exercise and ADL training, while the control group only took medicine. Two groups were evaluated with Barthel index before and after treatment. ResultsScores of Barthel index on the rehabilitation group were higher than that on the control group after treatment, and there was a significantly difference between two groups (P<0.01). Conclusions CBR has the significant effect on improving ADL in older stroke patients.

Objective To investigate the effect of recipient's pre-transplant triglyceride (TG) abnormalities on early graft function (EGF) after kidney transplantation.Methods According to the inclusion and exclusion criteria,154 identified living-kidney transplant recipients in the 309 Hospital of Chinese PLA from Jan.2011 to Dec.2014 were enrolled in present study,including 124 males and 30 females,and aged of 31.9 ± 8.4 years.The cohort was divided into two groups:TG normal group (0.40＜TG≤1.70mmol/L,n=107) and TG abnormalities group (TG＞l.70mmol/L or require lipid lowering therapy,n=47).The incidences of poor early graft renal function (PEGF),slow graft function (SGF) and delayed graft function (DGF) were compared between the two groups,and then the serum creatinine (Scr) levels were compared among the patients showing immediate graft function (IGF) at 3rd,7th and 30th day after transplantation.The ROC curve was drawn up taking TG as diagnosis index to explore the optimal cut-offvalue for predicting PEGF,SGF and DGF after transplantation.Results Compared with the TG normal group,the TG abnormalities group showed significantly higher incidence of PEGF and DGF (P＜0.05).Among the IGF patients,the TG abnormalities group showed higher Scr level at the 7th and 30th day after transplantation (P＜0.05).The area under ROC curve (AUC) reflected TG levels for PEGF,SGF and DGF were 0.774,0.704 and 0.818,respectively (P＜0.05).The optimal cut-offvalues were all 1.37mmol/L.Conclusions Recipients with abnormal pre-transplant TG level may have worse EGF after renal transplantation.The risk of developing PEGF,S GF and D GF tends to emerge when pre-transplant TG level is higher than 1.37mmol/L.

The GFP(green fluorescence protein)-streptavidin(SA) bi-functional fusion protein was generated and characterized in order to demonstrate novel platform for efficiently and durably modifying the cell surface with SA-tagged bi-functional proteins.The GFP-SA/pET24d construct was generated and expressed in BL21(DE3) host bacteria at the high level.The recombinant protein GFP-SA was purified through the Ni-NTA affinity chromatography,and then refolded.After biotinylation B16 tumor cells were modified with GFP-SA bi-functional fusion protein and then subjected to fluorescent microscopy and FACS analysis.The effect of surface modification on the viability and growth of B16.F10 tumor cells was evaluated by MTT staining.The GFP-SA recombinant fusion protein was expressed in BL21(DE3) at about 20 % of total bacterial proteins.The GFP-SA bi-functional fusion protein exhibited the bi-functionality,i.e.,SA-mediated high-affinity binding to biotinylated cell surfaces and GFP-emitted green fluorescence.The cell surface modification with GFP-SA bi-functional fusion protein did not affect the viability and growth of the modified B16.F10 tumor cells significantly.The GFP-SA bi-functional fusion protein was obtained and could be displayed efficiently on the surface of the biotinylated B16.F10 tumor cells through the specific and tight interaction between streptavidin and biotin,thus can be used as good trace protein and experimental control in the development of surface-modified tumor vaccine.

Poly(ADP-ribose) polymerase-1 (PARP-1) has emerged as a promising anticancer drug target due to its key role in the DNA repair process. It can polymerize ADP-ribose units on its substrate proteins which are involved in the regulation of DNA repair. In this work, a novel series of para-substituted 1-benzyl-quinazoline-2, 4 (1H, 3H)-diones was designed and synthesized, and the inhibitory activities against PARP-1 of compounds 7a-7e, 8a-8f, 9a-9c and 10a-10c were evaluated. Of all the tested compounds, nine compounds displayed inhibitory activities with IC50 values ranging from 4.6 to 39.2 micromol x L(-1). In order to predict the binding modes of the potent molecules, molecular docking was performed using CDOCKER algorithm, and that will facilitate to further develop more potent PARP-1 inhibitors with a quinazolinedione scaffold.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Drug Design ; Enzyme Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Molecular Docking Simulation ; Molecular Structure ; Poly (ADP-Ribose) Polymerase-1 ; Poly(ADP-ribose) Polymerases ; Quinazolinones ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship

BACKGROUND:Recent years, fiber posts and resin cores have been widely used in repairing the endodonticaly treated teeth with satisfactory effect. Erbium:yttrium aluminum garnet (Er:YAG) laser is a new type of water power laser system, which can be used for surface treatment of fiber posts. But studies on the effect of Er:YAG laser surface treatment on the bond strength of fiber posts are rarely reported. OBJECTIVE: To evaluate the effect of surface treatment utilizing Er:YAG laser irradiation with different parameters on the bond strength of fiber posts to root canal dentin. METHODS: Fifty human maxilary central incisors that had similar dimensions were used. After endodontic treatment, removal of the crown and canal preparation, ParaPost FIBER LUX glass fiber posts were cemented into the root canals. According to the method of surface treatment, 50 teeth were randomly divided into: no surface treatment as control group; four groups undergoing surface preparation with Er:YAG laser with four different power settings (150, 250, 350 and 450 mJ at 10 Hz for 60 s at 100-μs pulse duration), named 1.5, 2.5, 3.5, and 4.5 W Er:YAG laser irradiation groups, respectively. RESULTS AND CONCLUSION: The mean bond strength values reduced from the cervical to the apical root canal, and the bond strength of the dental cervix was significantly different from that of middle and apical thirds (P < 0.05), but there was no difference between the middle and apical thirds (P> 0.05). Regardless of the different part of the root slices, the bond strength was highest in the 4.5 W Er:YAG laser irradiation group, showing significant difference from other groups (P < 0.05). These findings indicate that 4.5 W Er:YAG laser irradiation significantly increases the bond strength of the fiber posts to root canal dentin.

Objective To investigate the expression and significance of calcyclin binding protein (CacyBP)in the brain of rat model of traumatic brain injury(TBI).Methods Sixty 60 male SD rats were divided randomly into normal control group (n=10) and TBI group (n=50).The TBI model was created by using lateral head rotation device and subdivided into 6 h,24 h,72 h,7 d and 14 d group (10 rats per group).The expression and distribution of CacyBP in the rat brain was investigated immunohistochemically.The presence of the brown stained particles was considered aspositiveand lack of the stained particles agnegative. Results CacyBP was mainly distributed in the hippocampus,dentate gyrus and cortical neuron cytoplasm.Compared with the high level expression of CacyBP in the normal control group,the expression of CacyBP was decreased to the lowest in the rat brain at 6 h post TBI (P<0.01),became stronger gradually at 24 hours and recovered to normal at day 14,with no statistical difference compared with normal control group (P>0.05). Conclusion The lowest level expression of CacyBP after TBI indicates that CacyBP may play an important role in development of brain injury under effect of difierent mechanisms.

OBJECTIVEModeling HAdV-3 infect Hep-2 cells in vitro. The effect of realgar nanoparticles on the expression of HAdV-3 is detected by using fluorescent quantitative PCR.

METHODSThe experiment is divided into four groups: Hep-2 cells control group, HAdV-3 virus control group, realgar nanoparticle group and ribavirin group. In order to detect HAdV-3 viral load, add realgar nanoparticles and ribavirin in vitro and remain that vitro for 24 hours when HAdV-3 has infected Hep-2 cells, extract total DNA of Hep-2 cells infected by HAdV-3, and establish Real-time PCR reaction system of every experimental groups.

RESULTThe Hep-2 cells group has no amplification curve, the Ct value is greater than 35, which illustrate HAdV-3 pathogen detection is negative. However, realgar nanoparticles group, ribavirin group and the HAdV-3 group have amplification curve, the Ct values are 29.30 +/- 0.08, 33.05 +/- 1.29, 26.01 +/- 0.25 respectively, which illustrate HAdV-3 pathogen detection is positive. The viral copy amount of the adenovirus group(66 699 932 +/- 23.85) is more than that of realgar nanoparticles group (912 435.44 +/- 16.57), and much greater than that of ribavirin group (459 124.84 +/- 12.82) (P < 0.05).

CONCLUSIONThe model of Hep-2 cell infected by HAdV-3 is reliable. The method of quantitative PCR is sensitive and specific. Realgar nanoparticles have a certain inhibition role for adenovirus nucleic acid replication.

Adenoviridae Infections ; virology ; Adenoviruses, Human ; drug effects ; genetics ; physiology ; Arsenicals ; chemistry ; pharmacology ; Gene Expression Regulation, Viral ; drug effects ; Hep G2 Cells ; Humans ; Nanoparticles ; chemistry ; Sulfides ; chemistry ; pharmacology ; Virus Replication ; drug effects

Objective To screen the variation in NeuroD1 gene and to study its function in vitro and its clinical phenotypes and genetic characteristics in Chinese early-onset type 2 diabetic probands. Methods PCR-direct sequencing of NeuroD1 gene was performed in 85 early-onset type 2 diabetic probands, 95 late-onset type 2 diabetics with strong diabetic history and 87 non-diabetic control subjects. Distributions of the identified variation were calculated and compared among the three groups. Expression vectors with mouse NeuroD1 (mND1)cDNA wild type or mutant type and reporter vectors with human insulin promotor-linked luciferase were constructed. Then the above vectors were co-transfected into rat INS-1 cells. Relative luciferase activities were measured to compare transcriptional activities of insulin gene between WT and MT. Results S159P (T→C), a new mutation was identified in a proband, which was co-segregated with diabetes in 4 carriers from the paternal side. The functional study showed that the S159P mutant exhibited a 25% reduction in transcriptional activity of insulin gene as compared with the wild type. A45T (G→A), a common variation was identified. The AA + GA genotypic frequencies were markedly increased in early-onset type 2 diabetic probands as compared with late-onset type 2 diabetic probands and non-diabetic control subjects (P=0.006 and P=0.014, respectively). Conclusion The novel S159P mutation in the NeuroDl gene seems to contribute to the development of diabetes in the Chinese early-onset type 2 diabetic family. The A45T variation may increase susceptibility to or be in disequilibrium with early-onset type 2 diabetes mellitus in Chinese population. In addition, the A45T variation may affect the onset pattern of type 2 diabetes mellitns, such as early-onset but not late-onset type 2 diabetes mellitus.

Objective To investigate whether the donor's glomerular filtration rate (GFR) to recipient's weight ratio (Dg/Rw) is a useful tool to predict early clinical outcome in living-related do-nor transplantation.Methods A total number of 108 living donor transplant recipients in the Chinese Military 309th Hospital from Jan.2014 to July 2015 were enrolled in this study.The patients who had multi-organ transplantation or developed grafts rejection,delayed graft function,hydronephrosis or renal vascular stenosis were excluded.The 90 qualified recipients were divided into G1 group (Dg/Rw ≤0.81),G2 group (Dg/Rw 0.81～1.11),and G3 group (Dg/Rw≥1.12).We respectively analyzed the relationship between recipient's serum creatinine Scr and Dg/Rw at 3-,7-,30-day and 1 year after transplantation.Results Scr at 3-,7-,30-day and 1 year after transplantation had linear correlation with Dg/Rw.As compared with G1 and G2 groups,Scr level was significantly reduced in G3 group at different time points (P＜0.05).Conclusion Dg/Rw has a negative relationship with Scr level after renal transplantation.Pre-transplant Dg/Rw is a potential index to predict the early clinical outcome in living-related donor transplantation.