The endophytic microorganisms found widely in many kinds of plants mediate various effects to theirs hosts. In this study, seven different dominant endophytes (SDE01 to 07) isolated from a Hy-peraccumulator-Solanum nigrum L. were resistant to Cd2+, and the strain SDE06 survived even in the medium containing 80 mg/L of Cd2+. Bacteria strain SDE06 was identified as Bacillus sp.. The removal of Cd2+ of SDE06 in different conditions were studied. Under the optimal conditions, the incubating time was 36 h, the solution pH 6.0, the temperature was 37?C and the Cd2+ concentration of medium was 20 mg/L, the highest removal rate was up to 80.2% at this condition.

Poly(ADP-ribose)polymerase-1 (PARP-1) plays a significant role in the DNA repair process by catalyzing the transfer of ADP-ribose from NAD+ to its receptors. It is a promising anticancer drug target and many PARP-1 inhibitors have been developed and used in the clinical trial. In this work, a series of 3-(2-oxo-2-substituted acetamido)benzamides have been synthesized and their inhibitory activities against PARP-1 were evaluated. Of all the tested compounds, six compounds displayed inhibitory activities with IC50 values ranging from 0.23 to 5.78 µmol.L-1 . The binding pose of compound 5a was predicted using molecular docking to facilitate further structural modification.
Antineoplastic Agents ; Benzamides ; chemistry ; DNA Repair ; Drug Design ; Humans ; Molecular Docking Simulation ; Poly(ADP-ribose) Polymerase Inhibitors ; chemical synthesis ; chemistry ; Poly(ADP-ribose) Polymerases

Adult ; Comet Assay ; DNA Damage ; drug effects ; Female ; Humans ; Lipid Peroxidation ; drug effects ; Male ; Peracetic Acid ; toxicity

Background Ultraviolet radiation is one of factors of the formation of age-related cataract.Indole-3-carbinol(I3C) is a plant chemical material with inhibitory effect on oxidative-induced cell damage and formation of amyloid fibrils,and the oxidative damage and amyloid fibrils are associated with cataract.However,the relationship between I3C and α-crystallin is in study. Objective This study was to evaluate the effects of ultraviolet-B laser irradiation on the secondary structure of α-crystallin and to explore the protection of I3C to chaperone activity of α-crystallin. Methods The fresh eyeballs were obtained from 1-year-old cattle to prepare the purified lens α-crystallin by gel chromatography.α-Crystallin was isolated from cattle lenses using gel chromatography.The purified α-crystallin was collected using fast protein liquid chromatography ( FPLC ) and exposed to 1:308 nmultraviolet-B at different irradiation intensities ( 23.75,118.75,475.00,1187.50,2375.00,4750.00,11 875.00,23 750.00 mJ/cm2 ) and then to ultraviolet-B 2:308 nm with irradiation intensities of 28 535.00,6730.00,3435.00,1910.00,1040.00 mJ/cm2.Ultraviolet-absorbance spectra,tryptophan fluorescence and N-formylkynurenine (N-FK)fluorescence spectra of both irradiated and non-irradiated α-crystallin were measured.I3C at the concentrations of 50 μmol/L and 100 μmoL/L were added to the α-crystallin solution to perform a catalase (CAT) thermal aggregation to confirm the chaperone activity of the α-crystallin,and the α-crystallin solution without any I3C was used as control.The ratios of A360 between various intervene groups with control group were calculated using spectrophotometry.Results The A280 values of the α-crystallin declined to 10％ at the ultraviolet-B irradiation intensity of 1187.5 mJ/cm2 and that at the intensity of 23.75 J/cm2 lowed to 2％.A negative correlation was seen between the ultraviolet-B irradiation intensity and the A280 value of the α-crystallin (R2=0.925 ) and a positive correlation was found between ultraviolet-B with N-FK ( R2 =0.949 ).Ultraviolet-B irradiation intensity showed a negative correlation with Trp fluorescence intensity (R2 =0.996 ).CAT hot condensed experiment revealed that after addition of different concentrations of indole-3-carbinol,the relative A360 values at various ultraviolet-B irradiation group were significantly higher than those of the control group (P =0.000),and the decreasing degree of chaperone activity of α-crystallin was lower than that of the control group ( P =0.000 ). Conclusions The study suggests that I3C can protect the chaperone activity of α-crystallin from photooxidation,and the ultraviolet-B laser may be a good exposure source compared with ultraviolet lamp.The ultraviolet-B laser irradiation causes the alteration of structure and chaperone activity of α-crystallin.

Aim To evaluate the effects of pantoprazole on various experimental acute ulcer inrats and mice. Methods The model of a gastric ulcer of rats or mice was caused bystree- induced ulcer and ligatel pylurus-induced ulcer. Results & Conclusions At adose of 5, 10, 20 mg? kg-1 of Pantoprazole can markedly decrease the ulcer index ofstree-induced ulcer. Pantoprazole(4, 8, 16 mg? kg -1 ) significantly decrease the areaof ligated pylorus-induced gastric ulcer. It was also found that pantoprazole caninhibit the output of basic gastric acid.

OBJECTIVETo observe the impacts on skeletal fluorosis pain, joint motor dysfunction and urine fluoride excretion in the treatment with fire needle therapy, electroacupuncture and calcium carbonate D3.

METHODSThe randomized controlled trial was adopted. Ninety-five patients were randomized into a fire needle group (31 cases), an electroacupuncture group (33 cases) and a calcium carbonate D3 group (31 cases). In the fire needle group and the electroacupuncture group, Ashi points, Dazhui (GV 14), Geshu (BL 17), Quchi (LI 11), Hegu (LI 4), Xuehai (SP 10) points were selected and stimulated with fire needle and electroacupuncture separately, three times a week. In the calcium carbonate D3 group, calcium carbonate D3 tablets was prescribed for oral administration, 600 mg each time, twice a day. The duration of treatment was 2 months in the electroacupuncture group and calcium carbonate D3 group and 1 month in the fire needle group. VAS score, the range of motion (ROM) and urine fluoride value were compared before and after treatment in the patients of the three groups.

RESULTSAfter treatment, VAS value and ROM were improved significantly in the patients of the three groups (all P < 0.05), the difference was not significant in comparison of the three groups (all P > 0.05). After treatment, the urine fluoride value was increased significantly in the fire needle group [(7.89 +/- 3.61) mg/L vs (9.81 +/- 4.17) mg/L, P < 0.01] and was increased in the electroacupuncture group [(7.53 +/- 3.46) mg/L vs (8.97 +/- 4.21) mg/L, P < 0.05]. The difference was not significant in comparison before and after treatment in the calcium carbonate D3 group (P > 0.05).

CONCLUSIONThe fire needle therapy, electroacupuncture and calcium carbonate D3 all have the clinical value in the prevention and treatment of skeletal fluorosis and the difference in the therapeutic effect has not been discovered among them yet at present. But it has been found that the fire needle therapy and electroacupuncture display the active significance in the promotion of urine fluoride excretion.

Adult ; Aged ; Bone Diseases ; drug therapy ; therapy ; urine ; Calcium Carbonate ; administration & dosage ; Electroacupuncture ; instrumentation ; Female ; Fluorides ; urine ; Humans ; Male ; Middle Aged ; Needles ; Treatment Outcome

Objective To explore the feasibility of constructing tissue engineered porcine corneal stroma with skin fibroblasts in vivo.Methods Skin fibroblasts were isolated from embryonic porcine,cultured and expanded in vitro.Cells were labeled with green fluorescence protein(GFP) gene by retro-viral infection.Cells at passage 3 were seeded on polyglycolic acid(PGA) non-woven fibers to form a cell-scaffold complex.The complexes were then implanted into porcines' corneal stroma after culturing in vitro for 1 week.Engineered stroma was observed continuously and harvested after 8 weeks for gross and histological evaluation.PGA with corneal stromal cells was served as control. Results The engineered tissue in the stroma gradually became transparent over a period of 8 weeks,showing no difference with the control group.Histologically,the engineered stromal lamellar was relatively regular and similar to the control.The implanted cells were confirmed by GFP expression under fluorescent microscope.By transmission electron microscopy examination, no significant difference in the diameter of collagen fiber was observed between the engineered stroma and normal stroma. Conclusion Tissue engineered corneal stroma may be formed with skin fibroblasts in porcine corneal microenvironment.

Objective In order to strengthen health supervision and management of public places and prevent occurrence of sudden public health events, we explored the effect of quantified and graded management of public places health supervision in Pudong New Area, Shanghai, and drew relevant research results, improving the efficiency of supervision and management in public places. Methods In 2018 from Zhuqiao Town of Pudong New Area Zhuqiao, 200 public places were randomly selected for quantified and graded management of health supervision and quantitative grading including public regulations, tobacco control and appliances, cleaning and disinfection procedures, and according to the score of evaluation results, public health levels A, B, C were rated for those public places.Single factor and multi factor conditional logistic regression model were used for comprehensive analysis to identify related factors affecting the quantitative and graded effect of public health supervision. Results With regard to quantitative and graded health supervision, the relevant knowledge in the 200 public places was updated.By univariate and multivariate conditional logistic regression analysis of multiple factors were ultimately selected 3 factors for public health supervision and quantitative grading management:with or without a health certificate valid (OR=1.121, P=0.026), with or without ashtrays placed in public places (OR=1.012, P=0.032), with or without health inspection report (OR=1.412, P=0.012). Conclusion The influencing factors of quantifying hygienic supervision in public places are mainly effective health certificates, ashtrays in public places and health inspection reports.In future, health supervision of public places should be enhanced in this regard.

Objective To investigate the level of measles antibody in physical examination population in Jinshan District, and provide evidence for measles immunization prevention and control in different populations. Methods The sera of physical examination population aged 15 years and older in Jinshan was collected.The titer of IgG antibody against measles was measured by using enzyme-linked immunosorbent assay (ELISA).Statistical methods were used to compare and analyze the data. Results The overall positive rate of measles antibody in physical examination population aged 15 and older in Jinshan was 70.74%, and the antibody protection rate was 17.56%.There was no significant difference in the distribution of measles antibody between different genders, or local population and migrant population (P>0.05).There was no significant difference in the positive rate of measles antibodies between different age groups (P>0.05), but the protection rate was statistically significant(χ²=44.53, P < 0.05).There was no statistically significant difference in the distribution of antibody levels between residents and migrants in all age groups.The rate of measles antibody protection in the 15-24 age group was the lowest, only 9.60%, and the antibody protection rate increased with age.The rate of measles antibody protection in the 65-95 age group was the highest, 25.62%. Conclusion The immunization level of measles antibody in physical examination population in Jinshan District is at a low level, and there is a potential risk of measles outbreak.In particular, it is imperative to focus on strengthening the measles immunization work in 15-24 age population.It is recommended to promote adult measles immunization program.

Objective To explore the feasibility and efficacy of constructing tissue engineered cartilage in vitro(using) a perfusion-hydrodynamic pressure bioreactor. Methods Chondrocytes isolated from swine's auricular cartilage were seeded onto polyglycolic acid(PGA) to be cultured in a three dimensional environment for 1 week.Then the chondrocyte-polymer constructs were divided into two groups: the experimental group and control group(8 constructs in each group).The experimental group was put into the perfusion-hydrodynamic pressure bioreactor to be cultured for another 3 weeks.The parameters of bioreactor were set as follows: flow rate of 100 mL/min,clockwise and anticlockwise 30 min respectively,on/off 8 h/16h,hydrodynamic pressure of 100 kpa with 0.5 Hz for 4 h/d.The control group was cultured with the routine method.Specimens were harvested and analyzed by gross observation,histology,typeⅡcollagen immunohistochemistry and biochemistry after 4 weeks. Results After 4 weeks,gross observation showed cartilage-like tissue was formed in both groups,and tissue wet weight of experimental group and control group were(191.03?18.55) mg and(130.78?10.33) mg,respectively(P