Objective To know the basic hygienic condition of the drinking water safety project in the countryside of Ya'an. Methods The water samples were collected in 2008 and were analyzed complying with the standard protocol of drinking water quality test(GB/T 5750-2006),the basic condition of the water supply was investigated in the same time. Results The main water sources of the researched 133 water supply projects were brook and spring,accounted for 64.66%. The central water supply projects with complete water treatment accounted for 36.84% ,the projects with partial water treatment accounted for 56.39% ,the projects without water treatment accounted for 6.77%. In the projects with partial water treatment, 84% of them had no disinfection facilities. In low flow and ample flow period,the eligible rates of water quality were 26.32%(70/266)and 37.98%(98/258)respectively. The bacteriological indexes were the main influencing factors. Conclusion The centralized water supply projects in the countryside in Ya'an have a high eligible rate in the items,but the bacteria contamination is still a main influencing factor in the rural area drinking water safety.

Objective To evaluate the implementation effect of the standardized training system for the residents in the First Affiliated Hospital of Hunan University of Chinese Medicine. Methods The First Affiliated Hospital of Hunan University of Chinese Medicine 2015 Chinese medicine (including Chinese Medicine) clinical medical postgraduates of TCM standardized resident training mode, make a comprehensive evaluation on the analysis and comparison of the training mode of the traditional 2015 stage. Results The outstanding students in grade 2014 were 15 (10.1％), and the 2015 were 33 people (23.1％), where the difference was significant. There 134 residents in grade 2014 completed the training (90.5％), and the 2015 were 140 (97.9％), where the difference was significant between two groups (P<0.05). Conclusions One year of residents training in Hunan province has achieved certain results that the Chinese medicine standardized resident training mode is superior to the traditional training mode in the clinical skills, but the detail specification needs to be improved.

OBJECTIVE: To investigate brain regional homogeneity (ReHo) changes of multiple sub-frequency bands in cirrhotic patients with or without hepatic encephalopathy using resting-state functional MRI. MATERIALS AND METHODS: This study recruited 46 cirrhotic patients without clinical hepatic encephalopathy (noHE), 38 cirrhotic patients with clinical hepatic encephalopathy (HE), and 37 healthy volunteers. ReHo differences were analyzed in slow-5 (0.010−0.027 Hz), slow-4 (0.027−0.073 Hz), and slow-3 (0.073−0.198 Hz) bands. Routine analysis of (0.010−0.080 Hz) band was used as a benchmark. Associations of abnormal ReHo values in each frequency band with neuropsychological scores and blood ammonia level were analyzed. Pattern classification analyses were conducted to determine whether ReHo differences in each band could differentiate the three groups of subjects (patients with or without hepatic encephalopathy and healthy controls). RESULTS: Compared to routine analysis, more differences between HE and noHE were observed in slow-5 and slow-4 bands (p < 0.005, cluster > 12, overall corrected p < 0.05). Sub-frequency band analysis also showed that ReHo abnormalities were frequency-dependent (overall corrected p < 0.05). In addition, ReHo abnormalities in each sub-band were correlated with blood ammonia level and neuropsychological scores, especially in the left inferior parietal lobe (overall corrected p < 0.05 for all frequency bands). Pattern classification analysis demonstrated that ReHo differences in lower slow-5 and slow-4 bands (both p < 0.05) and higher slow-3 band could differentiate the three groups (p < 0.05). Compared to routine analysis, ReHo features in slow-4 band obtained better classification accuracy (89%). CONCLUSION: Cirrhotic patients showed frequency-dependent changes in ReHo. Sub-frequency band analysis is important for understanding HE and clinical monitoring.
Ammonia ; Benchmarking ; Brain* ; Classification ; Healthy Volunteers ; Hepatic Encephalopathy* ; Humans ; Liver Cirrhosis ; Magnetic Resonance Imaging* ; Parietal Lobe

OBJECTIVETo investigate the expression of esophageal cancer related gene 4 (ECRG4) in human hepatocellular carcinoma and the role of ECRG4 in proliferation, apoptosis and migration of hepatoma cells.

METHODSECRG4 expression was investigated in normal or tumor liver cell lines including QSG7701 and HepG2 cells, and in 24 pairs of fresh samples of hepatocellular carcinoma by quantitative real-time PCR or Western blot. ECRG4-pcDNA3.1 expressing plasmid was transfected into HepG2 cells, of which cellular proliferation, apoptosis and migration were documented.

RESULTSECRG4 mRNA expression was reduced or absent in most primary hepatocellular carcinoma samples (95.8%, 23 out of 24 hepatocellular carcinoma samples) compared to their paired normal liver samples (P < 0.01). ECRG4 mRNA was significantly lower in HepG2 cells than QSG7701 cells (P < 0.05) along with decreased ECRG4 protein expression. HepG2 cells overexpressing ECRG4 showed decreased proliferation, increased apoptosis and reduced migration as compared with control cells (P < 0.05).

CONCLUSIONSECRG4 expression is frequently down-regulated in hepatocellular carcinoma. Overexpression of ECRG4 inhibits the proliferation and migration but promotes apoptosis of HepG2 cells, suggesting that ECRG4 is a candidate tumor suppressor gene in hepatocellular carcinoma and therefore may serve as a novel target for precision therapy.

Apoptosis ; Blotting, Western ; Carcinoma, Hepatocellular ; metabolism ; Cell Line, Tumor ; Cell Movement ; Cell Proliferation ; Down-Regulation ; Gene Expression Regulation, Neoplastic ; Hep G2 Cells ; Humans ; Liver Neoplasms ; metabolism ; Neoplasm Proteins ; metabolism ; RNA, Messenger ; metabolism ; Real-Time Polymerase Chain Reaction ; Transfection