Prevalence of osteoporotic vertebral fracture among community-dwelling elderly in Shanghai.

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[Investigation on the levels of carbon-, nitrogen-, iodine-containing disinfection by-products in a water plant in Jiangsu province, China].

Objective: This work aimed to investigate the carbon-, nitrogen-, iodine-containing disinfection by-products (DBPs) formation and pollution situation in different treatment processes and pipe water of a water plant in Jiangsu province China.

Methods: 12 water samples were collected from raw water, different time points after the addition of chlorine, finished water and pipe water in July, 2011. Trihalomethanes (THM(4)), haloacetic acids (HAA(6)), haloacetonitriles (HAN(s)), chloropicrin (CPs), haloketones (HK(s)), iodoform (IF) and iodoacetic acid (IAA) were detected by gas chromatography with electron capture detector (GC-ECD) after liquid-liquid extraction.

[Determination of several herbicides, fungicides and estrogens in water from various treatment processes of different water plants in Shanghai by solid phase extraction-gas chromatography/mass spectrometry].

Objective: To establish the solid phase extraction-gas chromatography/mass spectrometry (GC/MS) method for qualitative and quantitative determination of several herbicides, fungicides and estrogens in drinking water.

Methods: Duplicate 1 L water samples were collected from various treatment processes of different water plants. Target pollutants were extracted by XAD-2 resin from water samples and were eluted by 30% acetone-methanol.

[Formation and changes of regulated trihalomethanes and haloacetic acids in raw water of Yangtze River, Huangpu River and different treatment processes and pipelines network].

Objectives: To investigate the pollutant levels of regulated disinfection by-products trihalomethanes (THMs) and haloacetic acids (HAAs) in raw water from the Huangpu River, the Yangtze River and different treatment processes and finished water, and to explore the changes tendency in transmission and distribution pipeline network.

Methods: A total of 65 ml water samples with two replicates were collected from different raw water, corresponding treatment processes, finished water and six national surveillance points in main network of transmission and distribution, water source for A water plant and B, C water plant was the Huangpu River and the Yangtze River, respectively. Regulated THMs and HAAs above water samples were detected by gas chromatography.

[Thyroid disruption induced by pentachlorophenol].

Objective: To assess thyroid disruption induced by sodium pentachlorophenol (PCP) using Organization for Economic Co-operation and Development (OECD) recommended TG 407 method.

Methods: A total of 30 specific pathogen free (SPF) SD adult male and female rats were randomly divided into 3 groups, and treated with water, 0.33 and 30 mg x kg(-1)x d(-1) of PCP-Na by oral gavage for consecutive 28 days, respectively.

[Effects of perinatal exposure to bisphenol A inducing dopaminergic neuronal cell to apoptosis happening in midbrain of male rat offspring].

Objective: To investigate the mechanism and effect of rat perinatal exposure to bisphenol A (BPA) resulting in midbrain dopaminergic neuronal cell apoptosis and tyrosine hydroxylase expression of male offspring.

Methods: Rat dams were randomLy divided into 4 groups on gestational day(GD) 10 and given orally the bisphenol A doses as 0, 0.5, 5, 50 mg/kg x d from GD10 to weaning.