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Sökning: WFRF:(Espanol S)

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1.
  • Ip, H. F., et al. (författare)
  • Genetic association study of childhood aggression across raters, instruments, and age
  • 2021
  • Ingår i: Translational Psychiatry. - : Springer Science and Business Media LLC. - 2158-3188. ; 11:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Childhood aggressive behavior (AGG) has a substantial heritability of around 50%. Here we present a genome-wide association metaanalysis (GWAMA) of childhood AGG, in which all phenotype measures across childhood ages from multiple assessors were included. We analyzed phenotype assessments for a total of 328 935 observations from 87 485 children aged between 1.5 and 18 years, while accounting for sample overlap. We also meta-analyzed within subsets of the data, i.e., within rater, instrument and age. SNP-heritability for the overall meta-analysis (AGGoverall) was 3.31% (SE= 0.0038). We found no genome-wide significant SNPs for AGG(overall). The gene-based analysis returned three significant genes: ST3GAL3 (P= 1.6E-06), PCDH7 (P= 2.0E-06), and IPO13 (P= 2.5E-06). All three genes have previously been associated with educational traits. Polygenic scores based on our GWAMA significantly predicted aggression in a holdout sample of children (variance explained = 0.44%) and in retrospectively assessed childhood aggression (variance explained = 0.20%). Genetic correlations (rg) among rater-specific assessment of AGG ranged from r(g)= 0.46 between self- and teacher-assessment to r(g)d= 0.81 between mother- and teacher-assessment. We obtained moderate-to-strong rgs with selected phenotypes from multiple domains, but hardly with any of the classical biomarkers thought to be associated with AGG. Significant genetic correlations were observed with most psychiatric and psychological traits (range r(g): 0.19-1.00), except for obsessive-compulsive disorder. Aggression had a negative genetic correlation (r(g)=-0.5) with cognitive traits and age at first birth. Aggression was strongly genetically correlated with smoking phenotypes (range |r(g)| : 0.46-0.60). The genetic correlations between aggression and psychiatric disorders were weaker for teacher-reported AGG than for mother- and self-reported AGG. The current GWAMA of childhood aggression provides a powerful tool to interrogate the rater-specific genetic etiology of AGG.
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9.
  • Garcia Gomez, M., et al. (författare)
  • Exposure to mercury in the mine of Almaden
  • 2007
  • Ingår i: Occup Environ Med. ; 64:6, s. 389-95
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To describe the process for obtaining mercury and the historical exposure of Almaden miners to mercury. METHODS: Information on every workplace and historical data on production, technological changes in the productive process and biological and environmental values of mercury was collected. A job-exposure matrix was built with these values and the exposure to inorganic mercury was estimated quantitatively as mug/l of urine mercury. A cumulative exposure index was calculated for every worker by adding the estimates for every year in the different workplaces. RESULTS: In the mine, the highest exposures occurred during drilling, with values up to 2.26 mg/m3 in air, 2194 microg/l in urine and 374 microg/l in blood. Furnace operation and cleaning were the tasks with the highest values in metallurgy, peaking up to 3.37 mg/m3. The filling of bottles with mercury by free fall gave values within a range of 1.13-2.43 mg/m3 in air; these values dropped to 0.32-0.83 mg/m3 after introducing a new ventilation system. The toxicity effects of high doses of inorganic mercury on the central nervous and urinary systems have been known for decades. CONCLUSIONS: The exposure of the workers in Almaden mines to mercury has been very high. The extremely high content cinnabar ore of the mine explains the increased concentrations of mercury in air at the work places. This, together with inadequate working conditions, explains the high mercury levels found in blood and urine during the study period.
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10.
  • Sediva, A, et al. (författare)
  • Europe Immunoglobulin Map
  • 2014
  • Ingår i: JOURNAL OF CLINICAL IMMUNOLOGY. - : Oxford University Press (OUP). - 0271-9142. ; 178178 Suppl 1, s. 141-143
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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