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Träfflista för sökning "WFRF:(Boström Peter J.) srt2:(2010-2014)"

Sökning: WFRF:(Boström Peter J.) > (2010-2014)

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1.
  • Palmer, Nicholette D, et al. (författare)
  • A genome-wide association search for type 2 diabetes genes in African Americans.
  • 2012
  • Ingår i: PloS one. - San Francisco : Public Library of Science (PLoS). - 1932-6203. ; 7:1, s. e29202-
  • Tidskriftsartikel (refereegranskat)abstract
    • African Americans are disproportionately affected by type 2 diabetes (T2DM) yet few studies have examined T2DM using genome-wide association approaches in this ethnicity. The aim of this study was to identify genes associated with T2DM in the African American population. We performed a Genome Wide Association Study (GWAS) using the Affymetrix 6.0 array in 965 African-American cases with T2DM and end-stage renal disease (T2DM-ESRD) and 1029 population-based controls. The most significant SNPs (n = 550 independent loci) were genotyped in a replication cohort and 122 SNPs (n = 98 independent loci) were further tested through genotyping three additional validation cohorts followed by meta-analysis in all five cohorts totaling 3,132 cases and 3,317 controls. Twelve SNPs had evidence of association in the GWAS (P<0.0071), were directionally consistent in the Replication cohort and were associated with T2DM in subjects without nephropathy (P<0.05). Meta-analysis in all cases and controls revealed a single SNP reaching genome-wide significance (P<2.5×10(-8)). SNP rs7560163 (P = 7.0×10(-9), OR (95% CI) = 0.75 (0.67-0.84)) is located intergenically between RND3 and RBM43. Four additional loci (rs7542900, rs4659485, rs2722769 and rs7107217) were associated with T2DM (P<0.05) and reached more nominal levels of significance (P<2.5×10(-5)) in the overall analysis and may represent novel loci that contribute to T2DM. We have identified novel T2DM-susceptibility variants in the African-American population. Notably, T2DM risk was associated with the major allele and implies an interesting genetic architecture in this population. These results suggest that multiple loci underlie T2DM susceptibility in the African-American population and that these loci are distinct from those identified in other ethnic populations.
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2.
  • Strauss, Leena, et al. (författare)
  • Seminal vesicles and urinary bladder as sites of aromatization of androgens in men, evidenced by a CYP19A1-driven luciferase reporter mouse and human tissue specimens.
  • 2013
  • Ingår i: The FASEB Journal. - : Wiley. - 0892-6638 .- 1530-6860. ; 27:4, s. 1342-50
  • Tidskriftsartikel (refereegranskat)abstract
    • The human CYP19A1 gene is expressed in various tissues by the use of tissue-specific promoters, whereas the rodent cyp19a1 gene is expressed mainly in the gonads and brain. We generated a transgenic mouse model containing a >100-kb 5' region of human CYP19A1 gene connected to a luciferase reporter gene. The luciferase activity in mouse tissues mimicked the CYP19A1 gene expression pattern in humans. Interestingly, the reporter gene activity was 16 and 160 times higher in the urinary bladder and seminal vesicles, respectively, as compared with the activity in the testis. Accordingly, CYP19A1 gene and P450arom protein expression was detected in those human tissues. Moreover, the data revealed that the expression of CYP19A1 gene is driven by promoters PII, I.4, and I.3 in the seminal vesicles, and by promoters PII and I.4 in the urinary bladder. Furthermore, the reporter gene expression in the seminal vesicles was androgen dependent: Castration decreased the expression ∼20 times, and testosterone treatment restored it to the level of an intact mouse. This reporter mouse model facilitates studies of tissue-specific regulation of the human CYP19A1 gene, and our data provide evidence for seminal vesicles as important sites for estrogen production in males.-Strauss, L., Rantakari, P., Sjögren, K., Salminen, A., Lauren, E., Kallio, J., Damdimopoulou, P., Boström, M., Boström, P. J., Pakarinen, P., Zhang, F. P., Kujala, P., Ohlsson, C., Mäkelä, S., Poutanen, M. Seminal vesicles and urinary bladder as sites of aromatization of androgens in men, evidenced by a CYP19A1-driven luciferase reporter mouse and human tissue specimens.
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