20 research outputs found

    A Taste of Culture : Perceptions About American Fast Food in China

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    This exploratory study examined perceptions about American fast food among urban, Beijing residents to explore three major objectives; perceptions about taste preferences and nutrition value, the eating relationships of group harmony and sharing dishes, and the modern values of fast and convenient food in a clean environment. The 40 semi-structured interviews were completed in the summer of 2011. The informants were selected by age, gender, and occupation. Younger informants, 18 to 30 years old, were exposed to American fast food during their childhood and adolescent periods. Older informants, over 40 years old, did not come into contact with American fast food until they had already established their food consumption patterns.    The findings reveal few differences between younger and older informants because all informants restrict some American fast food consumption for both taste and health reasons. American fast food is only suitable to about half of the informants' taste palatability. They all prefer Chinese cuisine when given the choice. They perceive American fast food to be unhealthy because it uses food adulterants, contains high fat content, and lacks balance between food groups. Families eating together avoid American fast food restaurants to maintain group harmony. However, younger informants enjoy American style fast food because it provides a modern environment to socialize with friends.  M.A

    The landscape of somatic copy-number alteration across human cancers

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    available in PMC 2010 August 18.A powerful way to discover key genes with causal roles in oncogenesis is to identify genomic regions that undergo frequent alteration in human cancers. Here we present high-resolution analyses of somatic copy-number alterations (SCNAs) from 3,131 cancer specimens, belonging largely to 26 histological types. We identify 158 regions of focal SCNA that are altered at significant frequency across several cancer types, of which 122 cannot be explained by the presence of a known cancer target gene located within these regions. Several gene families are enriched among these regions of focal SCNA, including the BCL2 family of apoptosis regulators and the NF-κΒ pathway. We show that cancer cells containing amplifications surrounding the MCL1 and BCL2L1 anti-apoptotic genes depend on the expression of these genes for survival. Finally, we demonstrate that a large majority of SCNAs identified in individual cancer types are present in several cancer types.National Institutes of Health (U.S.) (Dana-Farber/Harvard Cancer Center and Pacific Northwest Prostate Cancer SPOREs, P50CA90578)National Institutes of Health (U.S.) (Dana-Farber/Harvard Cancer Center and Pacific Northwest Prostate Cancer SPOREs, R01CA109038))National Institutes of Health (U.S.) (Dana-Farber/Harvard Cancer Center and Pacific Northwest Prostate Cancer SPOREs, R01CA109467)National Institutes of Health (U.S.) (Dana-Farber/Harvard Cancer Center and Pacific Northwest Prostate Cancer SPOREs, P01CA085859)National Institutes of Health (U.S.) (Dana-Farber/Harvard Cancer Center and Pacific Northwest Prostate Cancer SPOREs, P01CA 098101)National Institutes of Health (U.S.) (Dana-Farber/Harvard Cancer Center and Pacific Northwest Prostate Cancer SPOREs, K08CA122833

    Genetic Drivers of Heterogeneity in Type 2 Diabetes Pathophysiology

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    Type 2 diabetes (T2D) is a heterogeneous disease that develops through diverse pathophysiological processes1,2 and molecular mechanisms that are often specific to cell type3,4. Here, to characterize the genetic contribution to these processes across ancestry groups, we aggregate genome-wide association study data from 2,535,601 individuals (39.7% not of European ancestry), including 428,452 cases of T2D. We identify 1,289 independent association signals at genome-wide significance (P \u3c 5 × 10-8) that map to 611 loci, of which 145 loci are, to our knowledge, previously unreported. We define eight non-overlapping clusters of T2D signals that are characterized by distinct profiles of cardiometabolic trait associations. These clusters are differentially enriched for cell-type-specific regions of open chromatin, including pancreatic islets, adipocytes, endothelial cells and enteroendocrine cells. We build cluster-specific partitioned polygenic scores5 in a further 279,552 individuals of diverse ancestry, including 30,288 cases of T2D, and test their association with T2D-related vascular outcomes. Cluster-specific partitioned polygenic scores are associated with coronary artery disease, peripheral artery disease and end-stage diabetic nephropathy across ancestry groups, highlighting the importance of obesity-related processes in the development of vascular outcomes. Our findings show the value of integrating multi-ancestry genome-wide association study data with single-cell epigenomics to disentangle the aetiological heterogeneity that drives the development and progression of T2D. This might offer a route to optimize global access to genetically informed diabetes care

    Genetic drivers of heterogeneity in type 2 diabetes pathophysiology

    Get PDF
    Type 2 diabetes (T2D) is a heterogeneous disease that develops through diverse pathophysiological processes1,2 and molecular mechanisms that are often specific to cell type3,4. Here, to characterize the genetic contribution to these processes across ancestry groups, we aggregate genome-wide association study data from 2,535,601 individuals (39.7% not of European ancestry), including 428,452 cases of T2D. We identify 1,289 independent association signals at genome-wide significance (P &lt; 5 × 10-8) that map to 611 loci, of which 145 loci are, to our knowledge, previously unreported. We define eight non-overlapping clusters of T2D signals that are characterized by distinct profiles of cardiometabolic trait associations. These clusters are differentially enriched for cell-type-specific regions of open chromatin, including pancreatic islets, adipocytes, endothelial cells and enteroendocrine cells. We build cluster-specific partitioned polygenic scores5 in a further 279,552 individuals of diverse ancestry, including 30,288 cases of T2D, and test their association with T2D-related vascular outcomes. Cluster-specific partitioned polygenic scores are associated with coronary artery disease, peripheral artery disease and end-stage diabetic nephropathy across ancestry groups, highlighting the importance of obesity-related processes in the development of vascular outcomes. Our findings show the value of integrating multi-ancestry genome-wide association study data with single-cell epigenomics to disentangle the aetiological heterogeneity that drives the development and progression of T2D. This might offer a route to optimize global access to genetically informed diabetes care.</p

    A Taste of Culture : Perceptions About American Fast Food in China

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    This exploratory study examined perceptions about American fast food among urban Beijing residents to explore three major objectives; perceptions about taste preferences and nutrition value the eating relationships of group harmony and sharing dishes and the modern values of fast and convenient food in a clean environment. The 40 semi-structured interviews were completed in the summer of 2011. The informants were selected by age gender and occupation. Younger informants 18 to 30 years old were exposed to American fast food during their childhood and adolescent periods. Older informants over 40 years old did not come into contact with American fast food until they had already established their food consumption patterns.  The findings reveal few differences between younger and older informants because all informants restrict some American fast food consumption for both taste and health reasons. American fast food is only suitable to about half of the informants' taste palatability. They all prefer Chinese cuisine when given the choice. They perceive American fast food to be unhealthy because it uses food adulterants contains high fat content and lacks balance between food groups. Families eating together avoid American fast food restaurants to maintain group harmony. However younger informants enjoy American style fast food because it provides a modern environment to socialize with friends.
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