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Sökning: WFRF:(Lindblad Frank) > (2010-2014)

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1.
  • Bayat, J. T., et al. (författare)
  • Daily life impact of malocclusion in Swedish adolescents: A grounded theory study
  • 2013
  • Ingår i: Acta Odontologica Scandinavica. - : Informa UK Limited. - 0001-6357 .- 1502-3850. ; 71:3-4, s. 792-798
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. To explore how malocclusions affect daily life in adolescents and how adolescents cope with malocclusion-related distress. Materials and methods. Twelve strategically selected teenagers, seven girls and five boys aged 13-14 years, participated in this study. Open, tape-recorded in-depth interviews based on Focus Group Discussions (FGD) were performed using a theme guide and analyzed according to the qualitative method of classic grounded theory (GT). Results. A core category was identified and named 'Repeatedly reminded of the malocclusion'. Associated to the core category, five categories were generated and labeled 'Being directed by the media's ideal image', 'Monitoring others' teeth', 'Struggling with low self-esteem', 'Hiding one's teeth' and 'Striving for cure'. Low self-esteem appeared to be frequently reinforced through the concerns for the malocclusion and handled via different coping strategies, such as hiding the teeth and striving to receive orthodontic treatment. Such processes were further enforced through the influence of media. Low self-esteem could be associated to a visible malposition of teeth, according to the informants. Having to wait for orthodontic treatment was frustrating the adolescents. Conclusions. Adolescents with malocclusion are often reminded of their condition, which can lead to avoiding strategies to minimize the negative feelings associated with the teeth and low self-esteem. Clinicians may therefore need to be aware of potential irrational behaviors when interacting with adolescents with malocclusions. The findings also suggest that there might be a discrepancy of attitudes between professionals focusing on oral health aspects of malocclusions and the adolescents focusing on esthetic aspects.
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2.
  • Boman, Krister K., et al. (författare)
  • Long-term outcomes of childhood cancer survivors in Sweden : a population-based study of education, employment, and income
  • 2010
  • Ingår i: Cancer. - : Wiley. - 0008-543X .- 1097-0142. ; 116:5, s. 1385-1391
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Studies of different national populations were indispensable for estimating the impact of illness-related disability on social outcomes in adult childhood cancer survivors. The effects of childhood cancer on educational attainment, employment, and income in adulthood in a Swedish setting were studied. METHODS: The study population was a national cohort of 1.46 million Swedish residents, including 1716 survivors of childhood cancer diagnosed before their 16th birthday, followed up in 2002 in registries at >25 years of age. Main outcomes were educational attainment, employment, and net income. Markers of persistent disability were considered, and outcomes were analyzed with multivariate linear and logistic regression models adjusted for age, sex, and socioeconomic indicators of the childhood households. RESULTS: Non-central nervous system (CNS) cancer survivors had similar education, employment, and income as the general population in adjusted models, whereas survivors of CNS tumors more often had no more than basic (< or =9 years) education (relative risk [RR], 1.80 [95% confidence interval (95% CI), 1.45-2.23]), less often attained education beyond secondary school (RR, 0.69 [95% CI, 0.58-0.81]), and less often were employed (RR, 0.85 [95% CI, 0.77-0.94]). Predicted net income from work was lower in CNS tumor survivors (P <.001) than in the general population, even after the exclusion of individuals who received economic disability compensation. CONCLUSIONS : CNS tumor survivors had poorer social outcomes compared with the general population, whereas outcomes for survivors of other childhood cancers were similar to the general population. Established late effects highlighted the importance of improved, safer pediatric CNS tumor treatment protocols and surveillance that identified individual needs for preventive and remedial measures.
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3.
  • Carneiro, Miguel, et al. (författare)
  • Rabbit genome analysis reveals a polygenic basis for phenotypic change during domestication
  • 2014
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 345:6200, s. 1074-1079
  • Tidskriftsartikel (refereegranskat)abstract
    • The genetic changes underlying the initial steps of animal domestication are still poorly understood. We generated a high-quality reference genome for the rabbit and compared it to resequencing data from populations of wild and domestic rabbits. We identified more than 100 selective sweeps specific to domestic rabbits but only a relatively small number of fixed (or nearly fixed) single-nucleotide polymorphisms (SNPs) for derived alleles. SNPs with marked allele frequency differences between wild and domestic rabbits were enriched for conserved noncoding sites. Enrichment analyses suggest that genes affecting brain and neuronal development have often been targeted during domestication. We propose that because of a truly complex genetic background, tame behavior in rabbits and other domestic animals evolved by shifts in allele frequencies at many loci, rather than by critical changes at only a few domestication loci.
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4.
  • Ekeus, C., et al. (författare)
  • Preterm birth, social disadvantage, and cognitive competence in Swedish 18- to 19-year-old men
  • 2010
  • Ingår i: Pediatrics. - : American Academy of Pediatrics (AAP). - 0031-4005 .- 1098-4275. ; 125:1, s. e67-73
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The aim was to study the impact of a range of gestationalages (GAs) on cognitive competence in late adolescence and howthis effect is modified by contextual social adversity in childhood. METHODS: This was a register study based on a national cohortof 119664 men born in Sweden from 1973 to 1976. Data on GA andother perinatal factors were obtained from the Medical BirthRegister, and information on cognitive test scores was extractedfrom military conscription at the ages of 18 to 19 years. Testscores were analyzed as z scores on a 9-point stanine scale,whereby each unit is equivalent to 0.5 SD. Socioeconomic indicatorsof the childhood household were obtained from the Populationand Housing Census of 1990. The data were analyzed by multivariatelinear regression. RESULTS: The mean cognitive test scores decreased in a stepwisemanner with GA. In unadjusted analysis, the test scores were0.63 stanine unit lower in men who were born after 24 to 32gestational weeks than in those who were born at term. The differencein global scores between the lowest and highest category ofsocioeconomic status was 1.57. Adjusting the analysis for thechildhood socioeconomic indicators decreased the effect of GAon cognitive test scores by 26% to 33%. There was also a multiplicativeinteraction effect of social adversity and moderately pretermbirth on cognitive test scores. CONCLUSIONS: This study confirms previous claims of an incrementalassociation of cognitive competence with GA. Socioeconomic indicatorsin childhood modified this effect at all levels of preterm birth.
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5.
  • Fairfield, Heather, et al. (författare)
  • Mutation discovery in mice by whole exome sequencing
  • 2011
  • Ingår i: Genome Biology. - : Springer Science and Business Media LLC. - 1465-6906 .- 1474-760X. ; 12:9, s. R86-
  • Tidskriftsartikel (refereegranskat)abstract
    • We report the development and optimization of reagents for in-solution, hybridization-based capture of the mouse exome. By validating this approach in a multiple inbred strains and in novel mutant strains, we show that whole exome sequencing is a robust approach for discovery of putative mutations, irrespective of strain background. We found strong candidate mutations for the majority of mutant exomes sequenced, including new models of orofacial clefting, urogenital dysmorphology, kyphosis and autoimmune hepatitis.
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6.
  • Hjern, Anders, et al. (författare)
  • Educational achievement and vocational career in twins - a Swedish national cohort study
  • 2012
  • Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 101:6, s. 591-596
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: To investigate how being born and raised as a twin is associated with IQ, educational achievement and vocational career. Methods: Register study in a national birth cohort, complemented with a siblings study. The study population included 13 368 individuals born and raised as twins and 837 752 singletons, including 3019 siblings of twins, in the Swedish birth cohorts of 19731981. Our outcome measures were mean grade points on a five point scale from ninth grade of primary school at 1516 years, IQ tests on a nine grade point scale from male conscripts at 1819 years, highest completed education, disability benefits, work income and employment at 2735 years of age. Results: Twins had slightly better mean grade point averages in ninth grade; +0.08 (95% CI 0.040.11) and more often had completed a university education in young adulthood; OR 1.16 (1.021.21) compared with singleton siblings, despite male twins having a slightly lower IQ at military conscription compared with male singletons. Employment rates, mean income and disability benefits were similar in twins and singletons. Conclusions: Twins have slightly better educational careers and similar vocational careers compared with those born as singletons.
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7.
  • Hjern, Anders, et al. (författare)
  • Social adversity predicts ADHD-medication in school children – a national cohort study
  • 2010
  • Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 99:6, s. 920-924
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims: To test the hypothesis that psychosocial adversity in the family predicts medicated ADHD in school children. Method: ADHD-medication during 2006 was identified in the Swedish Prescribed Drug Register in national birth cohorts of 1.1 million 6–19 year olds. Logistic regression models adjusted for parental psychiatric disorders were used to test our hypothesis. Results: There was a clear gradient for ADHD medication with level of maternal education, with an adjusted odds ratio of 2.20 (2.04–2.38) for the lowest compared with the highest level. Lone parenthood and reception of social welfare also implied higher risks of ADHD-medication with adjusted ORs of 1.45 (1.38–1.52) and 2.06 (1.92–2.21) respectively. Low maternal education predicted 33% of cases with medicated ADHD and single parenthood 14%. Conclusions: Social adversity in the family predicts a considerable proportion of ADHD-medication in school children in Sweden.
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8.
  • Isaksson, Johan (författare)
  • ADHD and stress : Diurnal cortisol levels, early psychosocial adversity and perceived stress
  • 2014
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • The Hypothalamus-Pituitary-Adrenal axis (HPA-axis) with its end product cortisol mediates the physiological response to stress thereby promoting mobilization of energy. The cortisol levels follow a diurnal rhythm with a distinct awakening response. Regulation of the HPA-axis differs among persons with certain psychiatric disorders when compared with controls. Some reports concern Attention-Deficit/Hyperactivity Disorder (ADHD) but findings are inconclusive. The main aim of the present thesis was to investigate diurnal levels of saliva cortisol in school aged children with ADHD and age matched non-affected comparisons, also taking early adversity, perceived stress and ADHD-medication into consideration.Children with ADHD had lower cortisol levels at awakening, 30 minutes later and before going to bed than comparisons. When the study group was split into three different age groups similar results were found only for children above 10 years of age. Within the ADHD group, subtype of ADHD or co-occurring symptoms did not affect the cortisol levels. Furthermore, children in the ADHD group had to a higher degree been exposed to foetal and childhood psychosocial adversity than comparisons.Since exposure to early adversity has been associated with both ADHD and HPA-axis functioning, such exposures could theoretically explain the low cortisol levels in ADHD via early programming of the HPA-axis. However, no relation was found between exposures to psychosocial adversity and diurnal cortisol levels. Neither did continuous medication with stimulants or atomoxetine explain the low cortisol levels. Possibly, medication may rather increase the levels.Finally, children with ADHD scored higher on perceived stress, measured by the Pressure-Activation-Stress (PAS) scale, than the comparison group. Female sex was also associated with higher stress in both groups, as well as increasing age in the comparison group. As with psychosocial adversity, no association was found between the higher PAS-scores and the lower cortisol levels, indicating the complexity of the stress regulating system.The results indicate a down-regulated or displaced HPA-axis with lower cortisol levels in children with ADHD. Stress related fragility – with more exposure to early stressors, higher perceived stress and lower diurnal cortisol levels – seem to accompany ADHD during childhood.
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9.
  • Isaksson, Johan, et al. (författare)
  • Cortisol levels in children with Attention-Deficit/Hyperactivity Disorder
  • 2012
  • Ingår i: Journal of Psychiatric Research. - : Elsevier BV. - 0022-3956 .- 1879-1379. ; 46:11, s. 1398-1405
  • Tidskriftsartikel (refereegranskat)abstract
    • Regulation of the Hypothalamus-Pituitary-Adrenal axis (HPA-axis) and its end product cortisol differs among persons with certain psychiatric disorders when compared with controls. Some reports concern Attention-Deficit/Hyperactivity Disorder (ADHD) but findings are inconclusive. In this study we collected four saliva samples during a regular weekday in children, 6-17 years old, with ADHD (n = 201) and non-affected comparisons (n = 221). Saliva cortisol was measured with radioimmunoassay technique. Clinical data were collected for diagnostic information. Subtypes and severity of symptoms were determined using parental rating scales. Children with ADHD had lower saliva cortisol levels than comparisons at waking up Median = 9.1 versus 12.7 nmol/L (p < .001), 30 min later Median = 15.8 versus 20.1 nmol/L (p < .001) and before going to bed Median = 0.8 versus 1.0 nmol/L (p = .015). No difference was found for the afternoon sample. When the study group was split into three different age groups similar results were found only for children above 10 years of age. Subtype of ADHD or co-occurring symptoms did not affect the cortisol levels. Degree of severity of ADHD symptoms was not associated with cortisol levels in the study group, other than a weak negative correlation between the afternoon sample and hyperactivity symptoms. The low cortisol levels in children with ADHD may indicate a dysregulation of the HPA-axis, for instance a down-regulation or a phase delay of the diurnal curve. The low levels may be related to the under-arousal possibly underlying several of the core symptoms of ADHD.
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10.
  • Isaksson, Johan, et al. (författare)
  • Early psychosocial adversity and cortisol levels in children with attention-deficit/hyperactivity disorder
  • 2013
  • Ingår i: European Child and Adolescent Psychiatry. - : Springer Science and Business Media LLC. - 1018-8827 .- 1435-165X. ; 22:7, s. 425-432
  • Tidskriftsartikel (refereegranskat)abstract
    • Previous studies suggest a different regulation of the hypothalamus-pituitary-adrenal axis (HPA-axis) with lower diurnal cortisol levels, especially in the morning, in children with attention-deficit/hyperactivity disorder (ADHD) compared with controls. Since exposure to foetal and childhood psychosocial adversity has been associated with both ADHD and HPA-axis functioning, such exposures may explain these low cortisol levels in ADHD via early programming of the HPA-axis. Thus, our main aim was to retrospectively study foetal and early childhood exposures to psychosocial adversity in children with ADHD and to relate these exposures to cortisol levels. Saliva samples were collected during a regular weekday in children, 6-17 years old, with clinically confirmed ADHD (n = 197) and non-affected comparisons (n = 221) for radioimmunoassay analysis of cortisol. Parental rating scales were used for categorising subtypes of ADHD and degree of exposure to adversity. Children with ADHD had more reports of at least one rated foetal adversity (p = 0.041) and childhood adversity (p < 0.001) than comparisons. The association between low morning cortisol levels and ADHD-symptoms remained when analyses were adjusted for adversities, age, sex, sampling time and symptoms of oppositional defiant disorder. No relation was found between exposures to foetal/childhood adversity and cortisol levels except for a positive relation between childhood adversity and cortisol morning increase in children with ADHD. The hypothesis that early adversity may influence the HPA-axis, leading to lower cortisol levels in children with ADHD, was not supported by our findings.
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