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https://www.readbyqxmd.com/read/28550520/homotypic-and-heterotypic-psychopathological-continuity-a-child-cohort-study
#1
Mark Shevlin, Eoin McElroy, Jamie Murphy
BACKGROUND: Heterotypic psychopathological continuity (i.e. one disorder predicting another at a later time point) contradicts the conventional view that psychiatric disorders are discrete, static entities. Studying this phenomenon may help to tease out the complex mechanisms that underpin psychiatric comorbidity. To date, no studies have explicitly compared heterotypic effects within and across higher order dimensions of psychopathology. METHODS: Patterns of homotypic and heterotypic psychopathological continuity were examined using cohort data from the Avon Longitudinal Study of Parents and Children (ALSPAC, N = 4815)...
May 26, 2017: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/28512766/mental-health-outcomes-of-developmental-coordination-disorder-in-late-adolescence
#2
Ian Harrowell, Linda Hollén, Raghu Lingam, Alan Emond
AIM: To assess the relationship between developmental coordination disorder (DCD) and mental health outcomes in late adolescence. METHOD: Data were analyzed from the Avon Longitudinal Study of Parents and Children. Moderate-to-severe DCD was defined at 7 to 8 years according to the DSM-IV-TR criteria. Mental health was assessed at 16 to 18 years using self-reported questionnaires: Strengths and Difficulties Questionnaire, Short Moods and Feelings Questionnaire, and the Warwick-Edinburgh Mental Well-being Scale...
May 16, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28499112/polygenic-risk-personality-dimensions-and-adolescent-alcohol-use-problems-a-longitudinal-study
#3
James J Li, Jeanne E Savage, Kenneth S Kendler, Matthew Hickman, Liam Mahedy, John Macleod, Jaakko Kaprio, Richard J Rose, Danielle M Dick
OBJECTIVE: Alcohol use problems are common during adolescence and can predict serious negative outcomes in adulthood, including substance dependence and psychopathology. The current study examines the notion that alcohol use problems are driven by polygenic influences and that genetic influences may indirectly affect alcohol use problems through multiple pathways of risk, including variations in personality. METHOD: We used a genome-wide approach to examine associations between genetic risk for alcohol use problems, personality dimensions, and adolescent alcohol use problems in two separate longitudinal population-based samples, the Finnish Twin Cohort (FinnTwin12) and the Avon Longitudinal Study of Parents and Children (ALSPAC)...
May 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28480579/longitudinal-epigenetic-predictors-of-amygdala-hippocampus-volume-ratio
#4
Esther Walton, Charlotte A M Cecil, Matthew Suderman, Jingyu Liu, Jessica A Turner, Vince Calhoun, Stefan Ehrlich, Caroline L Relton, Edward D Barker
BACKGROUND: The ratio between amygdala:hippocampal (AH) volume has been associated with multiple psychiatric problems, including anxiety and aggression. Yet, little is known about its biological underpinnings. Here, we used a methylome-wide approach to test (a) whether DNA methylation in early life (birth, age 7) prospectively associates with total AH volume ratio in early adulthood, and (b) whether significant DNA methylation markers are influenced by prenatal risk factors. METHODS: Analyses were based on a subsample (n = 109 males) from the Avon Longitudinal Study of Parents and Children, which included measures of prenatal risk, DNA methylation (Infinium Illumina 450k), T1-weighted brain scans and psychopathology in early adulthood (age 18-21)...
May 8, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28477346/breast-mri-segmentation-for-density-estimation-do-different-methods-give-the-same-results-and-how-much-do-differences-matter
#5
Simon J Doran, John H Hipwell, Rachel Denholm, Björn Eiben, Marta Busana, David J Hawkes, Martin O Leach, Isabel Dos Santos Silva
PURPOSE: To compare two methods of automatic breast segmentation with each other and with manual segmentation in a large subject cohort. To discuss the factors involved in selecting the most appropriate algorithm for automatic segmentation and, in particular, to investigate the appropriateness of overlap measures (e.g., Dice and Jaccard coefficients) as the primary determinant in algorithm selection. METHODS: Two methods of breast segmentation were applied to the task of calculating MRI breast density in 200 subjects drawn from the Avon Longitudinal Study of Parents and Children, a large cohort study with an MRI component...
May 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28472343/maturation-in-serum-thyroid-function-parameters-over-childhood-and-puberty-results-of-a-longitudinal-study
#6
Peter N Taylor, Adrian Sayers, Onyebuchi Okosieme, Gautam Das, Mohd S Draman, Arshiya Tabasum, Hussam Abusahmin, Mohammad Rahman, Kirsty Stevenson, Alix Groom, Kate Northstone, Wolf Woltersdorf, Andrew Taylor, Susan Ring, John H Lazarus, John W Gregory, Aled Rees, Nicholas Timpson, Colin M Dayan
Context: Serum thyroid hormone levels differ between children and adults, but have not been studied longitudinally in the same individuals through childhood. Objective: To assess changes in thyroid stimulating hormone (TSH) and thyroid hormone levels over childhood and their inter-relationships. Design: Cohort study. Setting: The Avon Longitudinal Study of Parents and Children a population-based birth cohort. Participants: 4,442 children who had thyroid function measured at age 7, and 1,263 children who had thyroid function measured at age 15...
May 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28459180/multilevel-growth-curve-models-that-incorporate-a-random-coefficient-model-for-the-level-1-variance-function
#7
Harvey Goldstein, George Leckie, Christopher Charlton, Kate Tilling, William J Browne
Aim To present a flexible model for repeated measures longitudinal growth data within individuals that allows trends over time to incorporate individual-specific random effects. These may reflect the timing of growth events and characterise within-individual variability which can be modelled as a function of age. Subjects and methods A Bayesian model is developed that includes random effects for the mean growth function, an individual age-alignment random effect and random effects for the within-individual variance function...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/28453778/exploring-a-causal-role-of-dna-methylation-in-the-relationship-between-maternal-vitamin-b12-during-pregnancy-and-child-s-iq-at-age-8-cognitive-performance-and-educational-attainment-a-two-step-mendelian-randomization-study
#8
Doretta Caramaschi, Gemma C Sharp, Ellen A Nohr, Katie Berryman, Sarah J Lewis, George Davey Smith, Caroline L Relton
An adequate intake of vitamin B12 during pregnancy plays an important role in offspring neurodevelopment, potentially via epigenetic processes. We used a two-step Mendelian randomization approach to assess whether DNA methylation plays a mediating and causal role in associations between maternal vitamin B12 status and offspring's cognition. Firstly, we estimated the causal effect of maternal vitamin B12 levels on cord blood DNA methylation using the maternal FUT2 genotypes rs492602:A>G and rs1047781:A>T as proxies for circulating vitamin B12 levels in the Avon Longitudinal Study of Parents and Children (ALSPAC) and we tested the observed associations in a replication cohort...
April 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28448061/grand-maternal-smoking-in-pregnancy-and-grandchild-s-autistic-traits-and-diagnosed-autism
#9
Jean Golding, Genette Ellis, Steven Gregory, Karen Birmingham, Yasmin Iles-Caven, Dheeraj Rai, Marcus Pembrey
Although there is considerable research into the genetic background of autism spectrum disorders, environmental factors are likely to contribute to the variation in prevalence over time. Rodent experiments indicate that environmental exposures can have effects on subsequent generations, and human studies indicate that parental prenatal exposures may play a part in developmental variation. Here we use the Avon Longitudinal Study of Parents and Children (ALSPAC) to test the hypothesis that if the mother or father (F1) had been exposed to their own mother's (F0) smoking during pregnancy, the offspring (F2) would be at increased risk of autism...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28446887/the-impact-of-prenatal-parental-locus-of-control-on-children-s-psychological-outcomes-in-infancy-and-early-childhood-a-prospective-5-year-study
#10
Stephen Nowicki, Yasmin Iles-Caven, Steven Gregory, Genette Ellis, Jean Golding
Locus of control is one of the most widely studied concepts in the history of personality psychology. In spite of its popularity and its associations with numerous relevant outcomes, the ability of locus of control to predict future behaviors involving parenting effectiveness has been under researched. The few parent locus of control children's outcome studies are characterized by cross-sectional methodologies that focus on mothers. The present study uses a prospective methodology to compare data on mothers' and fathers' locus of control with their child's behavior outcomes from a large scale research project, the Avon Longitudinal Study of Parents and Children (ALSPAC)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28444145/parental-separation-and-cardiometabolic-risk-factors-in-late-adolescence-a-cross-cohort-comparison
#11
Ana Luiza Gonçalves Soares, Helen Gonçalves, Alicia Matijasevich, Maija Sequeira, George Davey Smith, Ana M B Menezes, Maria Cecília Assunção, Fernando C Wehrmeister, Abigail Fraser, Laura D Howe
The aim of this study was to explore the association between parental separation during childhood (up to 18 years of age) and cardiometabolic risk factors (body mass index, fat mass index, blood pressure, physical activity, smoking, and alcohol consumption) in late adolescence using a cross-cohort comparison and to explore whether associations differ according to the age at which the parental separation occurred and the presence or absence of parental conflict prior to separation. Data from the Avon Longitudinal Study of Parents and Children (ALSPAC, United Kingdom) (1991-2011) and the 1993 Pelotas Birth Cohort (Brazil) (1993-2011) were used...
May 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28441402/sex-discordance-in-asthma-and-wheeze-prevalence-in-two-longitudinal-cohorts
#12
Ryan Arathimos, Raquel Granell, John Henderson, Caroline L Relton, Kate Tilling
Sex discordance in asthma prevalence has been previously reported, with higher prevalence in males before puberty, and in females after puberty; the adolescent "switch". However, cross-sectional studies have suggested a narrowing of this discordance in recent decades. We used a combination of cross-sectional and longitudinal modelling to examine sex differences in asthma, wheeze and longitudinal wheezing phenotypes in two UK birth cohorts, the Avon Longitudinal Study of Parents and Children (ALSPAC; born 1991-92 with data from age 0-18 years) and the Millennium Cohort Study (MCS; born 2000-02 with data from age 3-10 years)...
2017: PloS One
https://www.readbyqxmd.com/read/28439312/validation-of-the-multiplier-method-for-leg-length-predictions-on-a-large-european-cohort-and-an-assessment-of-the-effect-of-physiological-age-on-predictions
#13
J J Aird, C L Cheesman, A T Schade, F P Monsell
PURPOSE: The Avon Longitudinal Study of Parents and Children (ALSPAC) prospective cohort was used to determine the accuracy of the Paley multiplier method for predicting leg length. Using menarche as a proxy, physiological age was then used to increase the accuracy of the multiplier. METHODS: Chronological age was corrected in female patients over the age of eight years with documented date of first menses. Final sub-ischial leg length and predicted final leg length were predicted for all data points...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28424177/developmental-and-behavioural-associations-of-burns-and-scalds-in-children-a-prospective-population-based-study
#14
Alan Emond, Clare Sheahan, Julie Mytton, Linda Hollén
OBJECTIVE: To investigate child developmental and behavioural characteristics and risk of burns and scalds. DESIGN: Data on burns in children up to 11 years from 12 966 participants in the Avon Longitudinal Study of Parents and Children were linked to developmental profiles measured before the burn injury. MEASURES: Preinjury profiles of the children derived from maternal questionnaires completed in pregnancy, and at 6, 18, 42, 47 and 54 months...
May 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28423476/dietary-patterns-and-alcohol-consumption-during-pregnancy-secondary-analysis-of-avon-longitudinal-study-of-parents-and-children
#15
Victoria Coathup, Kate Northstone, Ron Gray, Simon Wheeler, Lesley Smith
BACKGROUND: Large general population surveys show that heavy regular and episodic alcohol consumption are associated with lower intakes of fruits and vegetables, and higher intakes of processed and fried meat. This is of particular concern regarding pregnant women, as both alcohol intake and inadequate maternal nutrition are independently associated with adverse fetal outcomes. The current study aimed to determine associations between maternal dietary patterns and alcohol consumption during pregnancy...
April 19, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28411449/prenatal-concentrations-of-perfluoroalkyl-substances-and-early-communication-development-in-british-girls
#16
Zuha Jeddy, Terryl J Hartman, Ethel V Taylor, Cayla Poteete, Katarzyna Kordas
Perfluoroalkyl substances (PFAS), found in many household products and classed as endocrine disrupting chemicals, can be transferred through the placenta and are associated with multiple developmental deficits in offspring. Using data from the Avon Longitudinal Study of Parents and Children (ALSPAC), we investigated the association between intrauterine exposure to PFAS and early communication development in 432 mother-daughter dyads at 15 and 38months of age. Concentrations of perfluorooctane sulfonate (PFOS), perfluorooctanoate (PFOA), perfluorohexane sulfonate (PFHxS), and perfluorononanoate (PFNA) were measured in maternal serum collected during pregnancy...
April 12, 2017: Early Human Development
https://www.readbyqxmd.com/read/28410519/in-utero-exposure-to-atrazine-analytes-and-early-menarche-in-the-avon-longitudinal-study-of-parents-and-children-cohort
#17
Gonza Namulanda, Ethel Taylor, Mildred Maisonet, Dana Boyd Barr, W Dana Flanders, David Olson, Judith R Qualters, John Vena, Kate Northstone, Luke Naeher
BACKGROUND: Evidence from experimental studies suggests that atrazine and its analytes alter the timing of puberty in laboratory animals. Such associations have not been investigated in humans. OBJECTIVE: To determine the association between in utero exposure to atrazine analytes and earlier menarche attainment in a nested case-control study of the population-based Avon Longitudinal Study of Parents and Children. METHODS: Cases were girls who reported menarche before 11...
April 11, 2017: Environmental Research
https://www.readbyqxmd.com/read/28389404/protective-role-of-apigenin-on-rotenone-induced-rat-model-of-parkinson-s-disease-suppression-of-neuroinflammation-and-oxidative-stress-mediated-apoptosis
#18
Chandran Anusha, Thangarajan Sumathi, Leena Dennis Joseph
Parkinson's disease (PD) is a neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra which is associated with oxidative stress, neuroinflammation and apoptosis. Apigenin (AGN), a non-mutagenic flavone found in fruits and vegetables, exhibits a variety of biological effects including anti-apoptotic, anti-inflammatory, and free radical scavenging activities. The current study was aimed to investigate the neuroprotective effects and molecular mechanisms of AGN in a rat model of PD induced by rotenone (ROT)...
May 1, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28364413/family-income-and-material-deprivation-do-they-matter-for-sleep-quality-and-quantity-in-early-life-evidence-from-a-longitudinal-study
#19
Marta Barazzetta, Simone Ghislandi
Introduction: The aim of this article is to investigate the determinants of sleeping patterns in children up to age 9 on a large and geographically homogeneous sample of British children and parents, focusing in particular on the role of economic and social factors, specifically on income. Aims and Methods: The data of this study come from the Avon Longitudinal Study of Parents and Children, a long-term health research project that recruited over 14000 pregnant women who were due to give birth between April 1991 and December 1992 in Bristol and its surrounding areas, including some of Somerset and Gloucestershire...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28349888/screening-for-familial-hypercholesterolaemia-in-childhood-avon-longitudinal-study-of-parents-and-children-alspac
#20
Marta Futema, Jackie A Cooper, Marietta Charakida, Christopher Boustred, Naveed Sattar, John Deanfield, Debbie A Lawlor, Nicholas J Timpson, Steve E Humphries, Aroon D Hingorani
BACKGROUND AND AIMS: Familial hypercholesterolaemia (FH) is an autosomal-dominant disease with frequency of 1/500 to 1/250 that leads to premature coronary heart disease. New approaches to identify FH mutation-carriers early are needed to prevent premature cardiac deaths. In a cross-sectional study of the Avon Longitudinal Study of Parents and Children (ALSPAC), we evaluated the biochemical thresholds for FH screening in childhood, and modelled a two-stage biochemical and sequencing screening strategy for FH detection...
May 2017: Atherosclerosis
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