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  • Oxford University Press  (2)
Document type
  • 1
    Publication Date: 2012-08-09
    Description: Answering a question of Cochrane and Pinner, we prove that, for any 〉 0, sufficiently large prime number p and an arbitrary multiplicative subgroup R of the field F p * , p ≤ | R | ≤ p 2/3– , the following holds | R ± R | ≥ | R | 3/2+ , where 〉 0 depends on only.
    Print ISSN: 0033-5606
    Electronic ISSN: 1464-3847
    Topics: Mathematics
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  • 2
    Publication Date: 2015-05-14
    Description: BACKGROUND The aim of this study was to evaluate the relationship of cardiac troponin (cTn) levels with conventional and ambulatory blood pressure (BP) in young and healthy adults. METHODS We performed a population based cross-sectional analysis among 2,072 young and healthy adults aged 25–41 years free of cardiovascular disease and diabetes mellitus. cTnI was measured using a highly sensitive (hs) assay. The relationships of high sensitivity cardiac tropononin I (hs-cTnI) with office and 24-hour BP were assessed using multivariable regression analyses. RESULTS Median age was 37 years and 975 (47%) participants were male. hs-cTnI levels were detectable in 2,061 (99.5%) individuals. Median (interquartile range) hs-cTnI levels were 0.98 (0.71; 1.64) ng/L among men and 0.48 (0.33; 0.71) ng/L among women. Systolic BP, but not diastolic BP, gradually increased across hs-cTnI quartiles (118, 120, 121, and 122 mm Hg for conventional BP; P = 0.0002; 122, 123, 124, and 124 mm Hg for 24-hour BP, P = 0.0001). In multivariable linear regression analyses, the β estimates for systolic BP per 1-unit increase in log transformed hs-cTnI were 2.52 for conventional BP ( P = 0.0001); 2.75 for 24-hour BP ( P 〈 0.0001); 2.71 and 2.41 ( P 〈 0.0001 and P = 0.0002) for day and nighttime BP, respectively. There was a significant relationship between hs-cTnI and the Sokolow–Lyon Index (odds ratio (95% confidence interval): 2.09 (1.37; 3.18), P 〈 0.001). CONCLUSION Using a hs assay, hs-cTnI was detectable in virtually all participants of a young and healthy population. hs-cTnI was independently associated with systolic BP and left ventricular hypertrophy.
    Print ISSN: 0895-7061
    Electronic ISSN: 1879-1905
    Topics: Medicine
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