Objective To investigate carotid atherosclerosis and its relevant risk factors of ischemic cerebral apoplexy in high-risk population and to explore new modes of behavioral influencing factors based on health management platform.Methods Using the carotid ultrasound screening of personnel undergoing physical examination,the differences of the related risk factors were studied among 1 152 cases of carotid atherosclerosis with differ ent gender and different age and different disease periods.Results High-risk population between 40-49 years wasmainly focused on mild lesions,and the numbers of serious lesions increased significantly among people older than 70;male patients numbered 51 were significantly much more than the females numbered 21 (P＜0.01)during mild lesion period,there was no statistical significance between male numbered 36 and female numbered 29 during serious lesion period (P＞0.05).Setting mild and serious period respectively as the dependent variables,and hypertension,overweight,dyslipidemia,diabetes mellitus,smnoking,physical activity and atrial fibrillation as the independent variables to conduct logistic regression analysis,it showed that mild lesions were related to overweight,hypertension and dyslipidemia.The risk factors of serious lesion period included hypertension,overweight,diabetes mellitus,dyslipidemia,atrial fibrillation,smoking and lack of physical activity.The female detection rates of hypertension and dyslipidemia in female patients,which were 83.8％ and 44.1％ respectively,were higher than those in male patients,which were 67.6％ and 31.0％ respectively.The detection rates of smoking and arterial fibrillation in female patients,which were 0.7％ and 0.3％ respectively,were lower than those in male patients,which were 20.7％ and 1.0％ respectively.Conclusions Early detection of carotid atherosclerosis lesions and its relevant risk factors as soon as possible,and early intervention influencing factors to mild lesions to prevent the atherosclerosis from getting worse.A new model of zero level prevention can be developed to control of ischemic stroke based on health management platform.

ObjectiveTo enrich and quantitatively analyze peripheral circulative carcinoma cells by magnetic activated cell sorting (MACS) in colorectal cancer patients.MethodsBlood samples, preoperatively collected from 21 patients with colorectal cancer and 9 healthy volunteers, were labeled by anti-cytokeratin (CK) with magnetic microbeads, and passed through magnetic columns; CK +carcinoma cells were separated from the samples, and quantified by flow cytometry.ResultsCK +CD45 -cells could not be detected from the samples without MACS; in the sample undergoing MACS, the concentrations of CK +CD45 -cells were significantly higher in patient group than in control group(P

Objective To explore the anxiety and depression in caregivers of patients in persist vegetative state and minimally conscious state, and discuss the related factors. Methods From January, 2010 to December, 2014, 60 caregivers of 60 patients in persist vegetative state and minimally conscious state were assessed with Self-rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS). The sex, ed-ucation level, relation to the patients and family income of the caregivers, and the age of the patients and number of the families of the pa-tients were recorded, and analyzed with Logistic regression. Results 55％caregivers were found in anxiety, and 48.4％in depression. The fe-male caregivers (OR>6.870, P<0.05), the number of the family of the patients (OR<0.233, P<0.05) and age of the patients (OR<0.294, P<0.05) were independent factors associated with anxiety and depression. Conclusion The caregivers of patients in persist vegetative state and minimally conscious state are troubled in anxiety and depression, especially the female, while age and the number of the families of patient may be important factors for it.

In this study, based on web database, 324 neurotoxic compounds and 234 non-neurotoxic compounds were selected as a data set for neurotoxicity discriminative model. 6 122 molecular descriptors, including charge distribution, physicochemical and geometrical descriptors,were calculated to characterize the molecular structure of neurotoxic compounds. The combination of Cfs Subset Evaluation and Best First-D1-N5 searching was used to select molecular descriptors. A discrimination model with high accuracy was built based on the support vector machine (SVM) approach. Meanwhile, the model accuracy, sensitivity and specificity were all above 80%. Besides, 30 traditional Chinese medicine compositions with neurotoxicity were set as external validation to further verify the model accuracy,with anaccuracy of 73.333%. Using the model, 13 potential neurotoxic compounds were screened from Sophorae subprostrate Radix,4 of them were verified by literatures. The results demonstrated that the discrimination model can be applied to screen neurotoxic compounds from Chinese medicinal materials.
Computer Simulation ; Drug Evaluation, Preclinical ; methods ; Medicine, Chinese Traditional ; methods ; Models, Theoretical ; Neurotoxins ; analysis ; chemistry ; Reproducibility of Results ; Support Vector Machine

On the basis of web databases, 111 compounds with nephrotoxicity and 90 compounds without nephrotoxicity were collected as data set of nephrotoxicity discrimination model, 39 compounds with tubular necrosis and 39 compounds without tubular necrosis were collected as data set of tubular necrosis discrimination model. The 6 122 molecular descriptors, including physicochemical, charge distribution and geometrical descriptors were calculated to characterize the molecular structure of the above-mentioned compounds. CfsSubsetEval valuation method and BestFirst-D1-N5 searching method were used to select molecular descriptors. Two models with high accuracy were built based on the support vector machine (SVM) approach, respectively. Accuracy, sensitivity, specificity and matthew's correlation coefficient of the two models were all above 70%. By using 22 nephrotoxicity compounds of Chinese medicine, the nephrotoxicity discrimination model was further verified with an accuracy of 72.73%. Using the tubular necrosis discrimination model, 10 potential compounds which can cause tubular necrosis were screened from the positive results of nephrotoxicity discrimination model, 6 of them have been verified by literatures. The results demonstrated that the discrimination models can be applied to screen nephrotoxic compounds from Chinese medicinal materials, and they also offer a new research idea for the further studies on the mechanism of nephrotoxicity.
Drugs, Chinese Herbal ; toxicity ; Nephrons ; drug effects ; Support Vector Machine ; Toxicity Tests ; instrumentation ; methods

Amoxicillin ; adverse effects ; Anti-Bacterial Agents ; adverse effects ; Child ; Humans ; Male ; Renal Insufficiency ; chemically induced

Objective To investigate the correlation between GSTP1 exon5 A/G polymorphism and clinic phenotype of COPD in the population of the Han nationality from southwest China.Methods Using PCR followed by restriction fragment length polymorphism(PCR-RFLP),genotypes of Ile105Val polymorphism in exon5 of GSTP1 were determined in 91 patients with COPD and 87 healthy control subjects.Results No significant differences were observed in the frequencies of genotypes and alleles of exon5 of GSTP1 between COPD patients and the healthy controls.The frequency of Ile105 in pink puffer patients was much more than that in the blue bloater patients.The CT scores of emphysema in patients with Ile105 was significantly higher than those with Val105.Conclusions The genetic polymorphism of exon5 of GSTP1 may not be associated with the susceptivity of COPD in the populations of the Han nationality from southwest China,but may be correlated with clinical phenotypes and lung parenchyma damage of COPD patients in the present population.

OBJECTIVETo study the types of matrix metalloproteinases (MMPs) involved in dentin bonding interface degradation.

METHODSDentin slices were prepared and treated with two adhesive systems (Single Bond 2 or Clearfil S3 Bond). The dentin surface was bonded with composite resin. All specimens were immersed in sterile artificial saliva for 0 or 6 months, and their micro-shear bond strength (muSBS) were measured. The fracture modes were observed through field emission scanning electron microscope (FE-SEM). Dentin slices with 4 mm x 3 mm x 1 mm dimensions were prepared. The slices were divided into three groups according to the treatment modes (negative control, Single Bond 2, and Clearfil S3 Bond). All specimens were stored in sterile artificial saliva for 0 or 6 months. The concentrations of MMP-1, -2, -3, -8, and -9 of each group were detected through fluorescent microsphere immunoassay.

RESULTSThe muSBS of both adhesive systems significantly decreased after storage aging. Significant differences in failure modes within the four groups tested in this study were observed. Compared with the negative control, the concentrations of MMP-1 and MMP-3 in different adhesive groups showed no significant difference after storage aging. However, the concentrations of MMP-2, -8, and -9 in Single Bond 2 group and the concentrations of MMP-8 and -9 in Clearfil S3 Bond group significantly decreased after 6 months of storage aging.

CONCLUSIONSignificant degradation occur in the dentin bonding interface of both adhesive groups under 6 months aging challenge. The concentrations ofdentinal MMP-2, -8, and -9 significantly decrease after treatment with adhesives and aging, indicating that these MMPs have an important function in dentin bonding interface degradation.

Objective To observe the efficacy of inhaled tiotropium bromide combined with budesonide/formoterol on reducing the frequency of acute episodes of symptom exacerbation and improving lung function,health status in chronic obstructive pulmonary disease (COPD). Methods Eighty-six patients with COPD were divided into 3 groups, combination group[29 cases, inhaled budesonide/formoterol (160 μg/4.5 μg, twice one day ) and tiotropium bromide ( 18 μg, once one day)], budesonide/formoterol group( 29 cases, 160 μg/4.5 μg, twice one day) and tiotropium bromide group(28 cases, 18 μg, once one day). The treatment continued for 3 months. Results Lung function, symptoms and health status improved obviously in three groups. The forced expiratory volume in one second (FEV1) of combination group after treatment was (1.24±0.18) L , which was improved by 11.7% compared with before treatment. It was significantly higher than that in budesenide/formoterol group and fiotropium bromide group (P < 0.01 ). The rescue medication consumptions and the times of acute episode of combination group were significantly decreased compared with those in the other groups,and there was significant difference (P <0.01). The SGRQ score of combination group was (35.6±13.9) points which was significantly lower than that of budesonide/formoterol group and tiotropium bromide group,and there was significant difference (P < 0.01 ).There was no statistical difference in the adverse events occurred in three groups (P > 0.05 ). Conclusions Combination treatment produces better control of symptoms and lung function and has no greater risk of sideeffects, compared with the treatment of budesonide/formoterol alone and tiotropium bromide alone. The combination treatment should be considered for patients with COPD.

The LasR gene was amplified from the genome of Pseudomonas aeruginosus by PCR and recombined with plasmid pUCP18 reversely. The recombinant pUCP18/lasRantisense was verified with restriction analysis, PCR and sequence and was transformed in Pseudomonas aeruginosus. The biological effect of pUCP18/lasRantisense was detected by RT-PCR, NAD method and the assay of pyocyanin. The air tubes of rats were infected by pUCP18/lasRantisense strain and then carried on histopathologic slide check. Expected full length LasR fragment (721bp) can be extended from Pseudomonas aeruginosus gene with PCR technology. And it is consistent with LasR gene of Pseudomonas aeruginosa covered in GenBank (NO. NC_002516). The recombinant plasmid was constructed and transformed into Pseudomonas aeruginosus sucessfully. Compared with the rats which were infected by standard strain, the bronchitis of the rats which were infected by pUCP18/lasRantisense strain was obviously eased. It can be concluded that the antisensenucleic acid of LasR gene can depress the virulence of Pseudomonas aeruginosus and reveal a new target site for treatment.