Objective To study the ecotoxicological effect of Mn,Cd and Mn-Cd combined contamination on crops.Methods Chinese cabbage(Brassica pekimensis),lettuce(Lactuca sativa var.angustana Irish),cowpea(Vigna unguiculata) and alfalfa(Medicago sativa L.) seeds were used in seed germination and root elongation tests.Results Research findings indicated that inhibition rates of heavy metals(individual or combined) on the seed germination were much lower than those on the root elongation.Inhibition rate of root elongation proved positively correlated to the concentration of Mn and Cd(P

SOD.Conclusion Mn,Cd and Mn-Cd combined exposure has a significant inhabitation on cowpea growth with Cd alone being heaviest and Mn lowest.The physiological indicators show that when combined pollution occurs,an antagonistic effect between Mn and Cd is exhibited.

Aim To evaluate the antitumor activity of ruthenium polypyridyl complexes and the underlying mechanism. Methods The right complexes 2b were filtered with highest activity and lowest toxicity by MTT assay. The change of cell cycle was detected by flow cytometry . The expression of p53 and p21 was detected by Western blot. The in vivo antitumor activity of 2b was evaluated by the assay of tumor bearing nude mice. Results 2b potentially inhibited proliferation of a variety of hepatoma cell lines, among which Hep 3B cell was the most significant ( IC50 was 12. 1 μmol · L-1 ) . The apoptosis of Hep 3 B cell was induced by 2b, as evidenced by DNA fragmentation, chromatin condensation and appearance of subG1 peak. The ac-tivities of caspase-9 and caspase-3 were activated by 2b. The phosphorylation of p53 was induced by 2b. The expression of p53 and p21 was also up-regulated by 2b. The growth of tumor of nude mice was signifi-cantly inhibited by 2b in vivo experiment. Conclusion 2b has good in vitro and vivo antitumor activities, and it can inhibite growth of Hep 3 B cells by inducing apoptosis.

Objective To investigate the clinical efficacy of acupuncture plus ashi point pricking bloodletting in treating acute gouty arthritis.Methods Seventy patients with acute gouty arthritis were randomly allocated to a treatment group of 38 cases and a control group of 32 cases. The treatment group received acupuncture plus ashi point pricking bloodletting and the control group, routine medication. Blood uric acid and C reaction protein contents were measured in the two groups before and after treatment. The clinical therapeutic effects were compared between the two groups.Results There were statistically significant differences in blood uric acid and C reaction protein contents after one and two courses of treatment compared with before treatment in the two groups (P<0.01). After two courses of treatment, there was a statistically significant difference in comparing C reaction protein contents between the two groups (P<0.05). The total efficacy rate was 84.2% in the treatment group and 81.3% in the control group; there was a statistically significant difference between the two groups (P<0.05).Conclusion Acupuncture plus ashi point pricking bloodletting is an effective way to treat acute gouty arthritis.

Objective To investigate the protective effects of (Val8)GLP-1-Glu-PAL to dopaminergic neurons on PD mice induced by MPTP.Methods 56 male C57BL/6 mice which are 10-12 weeks old were randomly divided into Control,model (MPTP),muti-injection (Val8) and therapy (MPTP + Val8) groups by random number table method.Mice in MPTP group were received MPTP IP.treatment (30mg/kg · d),the control group were treated with 0.9％ saline with the same volume,Val8 group were injected with (Val8) GLP-1-Glu-PAL (25 nmol/kg),and MPTP+Val8 group were going to received (Val8)GLP-1-Glu-PAL 1 h after treatment of MPTP,all the groups were treated for 8 consecutive days.Behavior test were processed 2h after drug IP injection,including swimming test and rotarod test.Mice were sacrificed immediately 1h after the final trail of behavior test in 8th day,brains were withdraw for IHC assay which tested the number TH positive neurons in SNpc area.Results The classical PD behavior symptom were induced by MPTP,from 1 st to 8th,the swimming score(1.715±0.143 and dropping latency(68.048±7.823) were both decreasing compared with control.The differences were statistically significant (P＜0.05).The positive dopaminergic neurons were significantly lower in SNpc area (P＜0.01).Compared with MPTP group,(Val8) GLP-1-Glu-PAL could statistically improved the behavior deficit,the swimming score (1.120±0.143) and dropping latency(20.546±7.823) in the MPTP+Val8 group,and differences were statistically significant (P＜0.05).Meanwhile,the TH positive neurons were significantly elevated (P＜0.01).Conclusion The results suggest that (Val8)GLP-1-Glu-PAL has protective effects for MPTP induced mice PD dopaminergic neurons.

Objective To investigate the indication of turbine technique or hammer and chisel technique removral of impacted mandibular third molars.Methods 486 impacted mandibular third molars patients were randomly divided into two treatment groups.One group received turbine technigue of 199 cases.while another group received hammer and chisel technique of 287 cases.Both the duration of operation and complications were compared.Results The average duration of the operation with turbine technique was(10 ～ 45)min,while with hammer and chisel technique was(12 ～ 90)min,respectively(P ＜ 0.05)in the removal of impacted mandibalar third molars.there were significant differences between two groups.The standardized rate of complication with tubine tehnique was 28.8％,while with hammer and clisel technique was 55.1％ in the remoral of impacted mandibular third molars.Conclusion Extraction of impacted mandi-bular third molars with air turbine hand piece could reduce complication during operation,and risperidone showed better results.It is worth for clinical use.

Objective To study the influence of qiqishen granules on the cellular and humoral immune functions in model mice. Methods Six-week-old mice were divided into control group and qiqishen granule (high, medium and low dose) groups. The suspension of chicken red blood cells was injected into the mouse abdominal cavity. The influence of qiq-ishen granules on the phagocytic function of the macrophages in mouse abdominal cavity was observed. The sheep red blood cells (SRBC) were prepared. The blood corpuscle coagulation was observed, and the serum hemolysin was detected. The ac-tivity of the mouse natural killer (NK) cells were detected by the interaction between the target cell (YAC-1) and spleen cell (the response cell). The influence of qiqishen granules on the cellular immunity was detected by the lymphocyte transforming assay. The influence of qiqishen granules on organ/body weight ratio was measured by calculating the thymus/body and spleen/body ratio. Results Compared with the control,qiqishen granules significantly improved phagocytic function of the macrophages in mouse abdominal cavity. The humoral immune function was also improved in mice. The activity of NK cell was enhanced by qiqishen granules, which also enhanced the lymphocyte transforming induced by the concanavalin (Con) A. There was no significant influence in the organ/body weight ratio. Conclusion The qiqishen granules could increase the im-munomodulating effect, indicating it would have a good using prospect.

Objective: To explore clinical features of acute myocardial infarction (AMI) caused by left main (LM) coronary artery lesions and to study the effect of percutaneous coronary intervention (PCI) in relevant patients. Methods: A total of 3514 AMI patients received coronary angiography (CAG) in our hospital from 2000-01 to 2015-12 were studied, those including 36 of infarct-related artery (IRA) as LM. There were 28/36 patients received PCI and 8 received CABG. The clinical features and outcomes in 28 LM disease patients were investigated. Results: The patients included 5 female and 23 male at the mean age of (66.5±8.32) years. There were 16 patients with ST-segment elevation myocardial infarction (STEMI) and 12 with NSTEMI; 21 received primary PCI and 7 had elective PCI; there were 16 patients suffered from cardiac shock at admission. The procedural success rate was 82.1% and the in-hospital mortality was 35.7% (10/28). During (66.1±35.2) months follow-up period, 3 patients had re-NSTEMI and 1 of them received PCI again, 3 patients died. No event survival rate was 66.7%. Conclusion: PCI is feasible for treating AMI patients caused by LM lesions, the in-hospital survival rate was 64.3%; while the MACE occurrence rate during long-term follow-up period has been high.

Blindness, Cortical ; etiology ; Chemical and Drug Induced Liver Injury ; complications ; Humans ; Liver Diseases ; complications

Objective To probe into the clinical application value of dynamic contrast-enhanced MR imaging (DCE-MRI) and diffusion weighted imaging (DWI) in identifying benign and malignant breast lesions.Methods 60 patients with clinically suspected breast lesions underwent MR examination.Morphologic features,early enhancement rate,time-signal intensity curve (TIC),apparent diffusion coefficient (ADC) value,as well as the differences between ADC values of the surrounding normal tissues and these of the lesions were compared and analyzed.Results The areas under the receiver operating characteristic curves (AUC) of the early enhancement rate,TIC,ADC value,ADC difference value were 0.741,0.808,0.882 and 0.959,respectively;the best diagnostic thresholds for the early enhancement rate,ADC value,and ADC difference value were 163％,1.30× 10-3 mm2/s and 0.47× 10-3 mm-2/s,respectively.The sensitivity of morphologic features,early enhancement rate,type Ⅲ curve,type Ⅱ and type Ⅲ curve,ADC value and ADC difference value in differentiating benign and malignant breast lesions was 53.1％,59.4％,43.8％,90.6％,93.8％ and 96.9％,respectively;the specificity was 85.7％,82.1％,89.3％,57.1％,75.0％ and 82.1％,respectively;the positive predictive values were 81.0％,79.2％,82.4％,70.7％,81.1％ and 86.1％,respectively;the negative predictive values were 61.5％,63.9％,58.1％,84.2％,91.3％ and 95.8％,respectively;and the accuracy was 68.3％,70.0％,65.0％,75.0％,85.0％,90.0％,respectively.Conclusion DCDMRI and DWI play important roles in differential diagnosis of benign and malignant breast lesions,among which ADC difference value is associated with the highest diagnostic capability.Combination of multiple imaging diagnostic methods is necessary to improve the diagnostic accuracy of breast lesions.