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Test�Cretest reliability was high (r = 0.74). Although calcium intake estimated by the CCFFQ was greater than that measured by food records, the CCFFQ provides valid and reliable estimates of calcium intake in children. The CCFFQ is especially well-suited as a tool to identify children with low calcium intakes. Am. J. Hum. Biol. 2010. ? 2009 Wiley-Liss, Inc. ""5011" "Bacterial thiopurine methyltransferases (bTPMTs) can favour resistance towards toxic tellurite oxyanions through a pathway leading to the emission of a garlic-like smell. Gene expression Tryptophan synthase profiling completed by genetic, physiological and electron microscopy analyses was performed to identify key bacterial activities contributing to this resistance process. Escherichia coli strain MG1655 expressing the bTPMT was used as a cell model in these experiments. PI3K assay This strain produced a garlic-like smell which was found to be due to dimethyl telluride, and cell aggregates in culture media supplemented with tellurite. Properties involved in aggregation were correlated with cell attachment to polystyrene, which increased with tellurite concentrations. Gene expression profiling supported a role of adhesins in the resistance process with 14% of the tellurite-regulated genes involved in cell envelope, flagella and fimbriae biogenesis. Other tellurite-regulated genes were, at 27%, involved in energy, carbohydrate and amino acid metabolism including the synthesis of antioxidant proteins, and at 12% in the synthesis of transcriptional regulators and signal transduction systems. Escherichia coli mutants impaired in tellurite-regulated genes showed ubiquinone and adhesins synthesis, oxidative stress response, and efflux to be essential in the bTPMT resistance process. High tellurite resistance required a synergistic expression Alectinib mouse of these functions and an efficient tellurium volatilization by the bTPMT. ""5012" "Human growth data from Guatemalan school children were analyzed to test the hypothesis that the degree of sexual size dimorphism (SSD) in height is reduced for people living under more adverse environmental quality. The sample consists of 2,560 girls and 3,262 boys, 6�C16.99 years of age, from the two major Guatemalan ethnic groups, Maya of very low socioeconomic status (SES) and Ladino of high, middle, and low SES. SES was estimated by questionnaire and ethnographic observation. All data are from the Longitudinal Study of Child Development of the Universidad del Valle de Guatemala. Significance of SSD was tested within each whole year age category (e.g., 6.0�C6.9 years) by SES for Ladinos and Maya. Ethnic groups were then compared for each age category to determine whether the SSD values were significantly different between groups.
