The relation between improved water supply and entro-infectious diseases was studied with cross-section and self-control study methods'the results showed an significantly decreased mobidity of entro infectious diseases in areas with improved water supply compared with with those with scaltering water supply,so did the coliform counts in waters,Which showed that improved water supply if of great significance for decreasing entro-infectious diseases morbidity.

Objective To explore the regulatory effects of thioredoxin on chemosensitivity of gastric cancer cells. Methods RT-PCR was employed to clone the full-length cDNA of thioredoxin (Trx) from human drug-resistant gastric cancer cell line SGC7901/VCR. The sense and antisense eukaryotic expression vectors corresponding Trx were constructed and transduced into gastric cancer cells SGC7901 and SGC7901/VCR by lipofectamine, respectively. MTT assay was used to evaluate the sensitivity of gene-transfected gastric cancer cells and control cells to anti-cancer drugs in vitro. Results The results indicated that SGC7901 cells transfected with Trx sense vector showed significantly decreased sensitivity to vincristine, cisplatin and adriamycin, while SGC7901/VCR transfected with Trx antisense vector showed significantly increased sensitivity to these drugs. Conclusion All these data suggested that Trx might participate in the formation of multidrug resistance of gastric cancer cells and alteration of Trx could regulate chemosensitivity of gastric cancer cells.

Objective:To study the expression of COX-2 and Survivin in HCC tissues and their relationship for supplying experimental evidence for gene diagnosis and treatment of HCC.Methods:The expression of COX-2 and Survivin was detected in 30 cases of hepatocellular carcinoma and 10 normal liver tissue by Flow cytometry (FCM) and immunohistochemistry (SP).Results:Two experimental methods showed that the positive expression of COX-2 and Survivin in HCC was significanly higher than that in normal liver tissue and there was significanly positive correlation between the expression of COX-2 and Survivin.Conclusion:The hyper-expression of COX-2 and Survivin in tissue can reflex the biological behavior of HCC and there are synergistic effect between them during the development of HCC.A possible mechanism is inhibition of tumor cell apoptosis through upregulating Survivin by COX-2,and promoting abnormal cell proliferation in development of hepatocellular carcinoma.

Objective To find out the expression relation between TP53 and NOTCH1,and to explore their effects in head and neck squamous cell carcinoma.Methods Obtained the differentially expressed genes data of head and neck squamous cell carcinoma from 279 samples in TCGA database.Analyzed the co-expression relation between TP53 and NOTCH1 through Pearson and Spearman method.Cbioportal was used to analyze their co-expressed genes.Establish the co-expression network of TP53 and NOTCH1 with String database.The pathway and function of co-expression network was identified through KEGG and DAVID database respectively.Results Among the 279 samples,TP53 and NOTCH1 was co-expressed in head and neck squamous cell carcinoma.(Pearson score =0.45;Spearman score =0.41) There were 182 interaction pairs of TP53 and NOTCH1 related co-expressed gene according to the String database.(Pearson and Spearman score ＞ 0.3)These genes were enriched in some pathways such as T cell receptor signaling pathway,cell cycle,cell adhesion molecules and so on.These genes were enriched in some tumor related function including immune response,regulation of transposition,regulation of apoptotic process,cell cycle,regulation of GTPase activity and so on.Conclusion TP53 and NOTCH1 was co-expressed.Through establishing co-expressed network of TP53 and NOTCH1 and bioinformatics analysis,their function and signaling pathway were explored.The data generated from this study could provide a new reference in mechanism research of head and neck squamous cell carcinoma.

Objective To develop a lower limbs rehabilitative apparatus and explore its effects. Methods From January to September, 2016, 28 children with spastic cerebral palsy were divided into control group (n=14) and observation group (n=14) randomly. The control group received routine rehabilitation, while the observation group received self-made lower limbs rehabilitative apparatus training addition-ally. They were assessed with Gross Motor Function Measure (GMFM)-88 and Berg Balance Scale (BBS) before and three months after treatment. Results There was no significant difference in the scores of GMFM-88 and BBS between two groups before treatment (P>0.05), while they increased after treatment (t>6.124, P<0.001), and were higher in the observation group than in the control group (t>2.329, P<0.05). Conclusion Self-made lower limbs rehabilitative apparatus could help to improve the gross motor function and balance function in children with spastic cerebral palsy.

Objective:To explore the effect of sub-inhibitory concentration of imipenem on the bio-activities of methicillin resistant Staphylococcus aureus(MRSA) and illuminate the inhibitory effects of carbapenem antibioty on the activity of MRSA and their mechanisms,and to provide the basis for using the carbapenem antibiotics in the treatment of MRSA infection.Methods:Five ST239 type of MRSA clinical isolates were selected and were co-cultured with 1/10 and 1/2 minimal inhibitory concentration (MIC) of imipenem for 1.5,6.0 and 12.0 h,which were divided into control group(no imipenem),1/10MIC group(1/10MIC of imipenem),and 1/2MIC group(1/2MIC of imipenem).Fluorescent quantitative real-time PCR method was used to determine the relative mRNA expression levels of virulence-related genes fibronectin A(fnbA),staphylococcal protein A(spa),α-hemolysin(Hla),leukocidin D(lek-D),leukocidin E(lek-E),and enterotoxin A in various groups;Spectrophotometry was used to detect the proliferation activity of MRSA strains in various groups in vitro.Results:After co-culture for 6.0 and 12.0 h,the proliferation activities of 5 trains of MRSA in 1/2MIC group in vitro were significantly decreased compared with control group (P<0.01).The relative mRNA expression levels of 6 virulence-related genes of 5 strains of MRSA in 1/10MIC and 1/2MIC groups were significantly decreased compared with control group(P<0.01).After co-culture for 12.0 h,the mRNA expressions of all the tested virulence-related genes were not found.Conclusion:The sub-inhibitory concentration of imipenem shows obviously inhibitory effect on the mRNA expressions of multiple virulence-related genes of ST 239 type of MRSA strains,and higher concentration of imipenem can suppress the proliferation of MRSA strains in vitro.Imipenem shows the potential value in the treatment of the severe MRSA infected patients.

Objective To investigate the effect of early systemic nursing intervention applied by ward nurse on constipation among patients with depression. Methods A total of 144 participants were divided into the intervention group (72 cases) andthe control group (72 cases) by random number table. Except for a period of 4 weeks routine nursing and 4 weeks follow-up observation which were applied for control subjects, systemic nursing interventions werealso conducted inintervention patients. The incidence of constipation and constipation symptom scoreswere measured at the ends of the 4th and 8th week of treatment. Results The incidences of constipation and constipation symptom scores of the 4th and 8th weekend in the intervention group were 17.6% (12/68), 6.59 ± 4.08, 23.5% (16/68) and 6.81 ± 3.99 respectively. While in the control group they were 34.9%(22/63), 8.84 ± 4.45, 44.4%(28/63) and 10.52 ± 3.86 respectively. These differences between two groups at the 4th and 8th weekend were all significant (χ2=5.077, t=3.023, P < 0.05 and χ2=6.413, t=5.411, P < 0.05, respectively). Compared with the 4th weekend, in the 8th weekend, constipation rate and scores of constipation symptom were increased in thecontrol group (P < 0.05), but not in theintervention group (t=-1.965, P > 0.05). Conclusions In patients with depression, early systemic nursing intervention can effectively ameliorate the constipation caused by amitriptyline.

This study is to investigate the protective effect of rosiglitazone (RSG) against learning and memory impairment of APP/PS1/tau transgenic mice. AD mice model was replicated by using 6-month APP/PS1/tau transgenic mice. The learning and memory ability of mice was evaluated by Morris water maze and Western blotting assays was applied to measure the phosphorylation and O-glycosylation of Tau and neurofilaments (NFs) protein. The results demonstrated that RSG could reverse the learning and memory deficits of 3 x Tg mice significantly. It was also found that RSG could suppress the hyperphosphorylation of Tau and NFs protein levels and increase the glycosylation expression of Tau and NFs proteins in 3 x Tg mice brain. Together, RSG ameliorates cognitive impairments of 3 x Tg mice via the alleviation of the hyperphosphorylated Tau and NFs proteins burden in the brain.

Objective: To measure the glycemic index of foods contained low carbohydratesand discuss the relationship between glycemic index and the amount of fat, carbohydrate, protein and diet fiber from these foods. Methods: According to the method of Wolver,the GIs of these kinds of foods had been determined and caculated by using 25 gram carbohydrates as control because of the low percent(10%)of carbohydrates in foods. Results: The results of GI in 13 kinds of the foods were worked out and there was negative correlation between diet fiber and GI. Conclusions: The inference factors of GI are not the kinds of carbohydrate but the amount of diet fiber in these foods.

Objective To investigate the realationship between resting heart rate(RHR) and carotid arterial intima-media thickness(IMT)in senile patients with essential hypertension.Methods All 164 elderly essential hypertensive patients were divided into three groups according to the levels of blood pressure(BP): the first group,140/90 mmHg≤SBP