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https://www.readbyqxmd.com/read/28734322/association-between-childhood-to-adolescent-attention-deficit-hyperactivity-disorder-symptom-trajectories-and-late-adolescent-disordered-eating
#1
Zeynep Yilmaz, Kristin N Javaras, Jessica H Baker, Laura M Thornton, Paul Lichtenstein, Cynthia M Bulik, Henrik Larsson
PURPOSE: Disordered eating is more prevalent among adolescents with attention deficit/hyperactivity disorder. Both inattention and hyperactivity/impulsivity symptoms show strong associations with disordered eating, but few investigations of these associations have been longitudinal. Thus, we examined the effect of childhood to adolescent inattention and hyperactivity/impulsivity symptom trajectories on late adolescent disordered eating. METHODS: We used growth mixture modeling to identify distinct inattention and hyperactivity/impulsivity symptom trajectories (called "classes") across three time points (ages 8-9, 13-14, and 16-17 years) in the Swedish Twin study of CHild and Adolescent Development...
August 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28734091/prediction-of-alcohol-use-disorder-using-personality-disorder-traits-a-twin-study
#2
Tom Rosenström, Fartein Ask Torvik, Eivind Ystrom, Nikolai Olavi Czajkowski, Nathan A Gillespie, Steven H Aggen, Robert F Krueger, Kenneth S Kendler, Ted Reichborn-Kjennerud
BACKGROUND AND AIMS: The DSM-IV Personality Disorders (PDs) are comorbid with Alcohol Use Disorder (AUD) and with each other. It remains unclear which PD criteria are most likely to drive onset and recurrence of AUD and which are merely confounded with those criteria. We determine which individual PD criteria predict AUD and the degree of underlying genetic and/or environmental etiology. DESIGN: A prospective observational twin study. SETTING: Norway 1999-2011...
July 22, 2017: Addiction
https://www.readbyqxmd.com/read/28734078/associations-between-adolescent-cannabis-use-and-neuropsychological-decline-a-longitudinal-co-twin-control-study
#3
Madeline H Meier, Avshalom Caspi, Andrea Danese, Helen L Fisher, Renate Houts, Louise Arseneault, Terrie E Moffitt
AIMS: This study tested whether adolescents who used cannabis or met criteria for cannabis dependence showed neuropsychological impairment prior to cannabis initiation and neuropsychological decline from before to after cannabis initiation. DESIGN: A longitudinal co-twin control study. SETTING AND PARTICIPANTS: Participants were 1,989 twins from the Environmental Risk (E-Risk) Longitudinal Twin Study, a nationally representative birth cohort of twins born in England and Wales from 1994-1995...
July 22, 2017: Addiction
https://www.readbyqxmd.com/read/28732996/nanostructured-%C3%AE-type-titanium-alloy-fabricated-by-ultrasonic-nanocrystal-surface-modification
#4
Mehdi Kheradmandfard, Seyed Farshid Kashani-Bozorg, Chang-Lae Kim, Abbas Zarei Hanzaki, Young-Shik Pyoun, Jung-Hyong Kim, Auezhan Amanov, Dae-Eun Kim
The surface of β-type Ti-Nb-Ta-Zr (TNTZ) alloy, which is a promising material for biomedical applications, was treated with the ultrasonic nanocrystal surface modification (UNSM) technique to enhance its hardness. As a result, a gradient nanostructured (GNS) layer was generated in the surface; the microstructure of the top surface layer consisted of nanoscale lamellae with a width of about 60-200nm. In addition, there were lamellar grains consisting of nanostructured subgrains having unclear and wavy boundaries...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28731214/from-positive-psychology-to-psychopathology-the-continuum-of-attention-deficit-hyperactivity-disorder
#5
Corina U Greven, Jan K Buitelaar, Giovanni A Salum
BACKGROUND: Integration of positive psychology into clinical research and treatment has been slow. This integration can be facilitated by the conceptualisation of mental disorders as the high, symptomatic extreme of continuous normal variation. This assumes that there is also a low, positive extreme, which is, however, unchartered territory. This study aims to examine how well current measures capture the low extreme of mental disorder continua, using attention-deficit hyperactivity disorder (ADHD) as an example...
July 21, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28730318/renal-function-in-neonates-with-twin-twin-transfusion-syndrome-treated-with-or-without-fetoscopic-laser-surgery
#6
Lianne Verbeek, Faiez A Joemmanbaks, Jacoba M E Quak, Ram N Sukhai, Johanna M Middeldorp, Dick Oepkes, Enrico Lopriore
The aim of this study is to investigate the short-term renal function in neonates with twin-twin transfusion syndrome (TTTS), treated with fetoscopic laser surgery (laser group) or conservatively (non-laser group). Creatinine and urea levels and urine output were recorded in the first week after birth. Primary outcome was short-term renal dysfunction, defined as a creatinine level of >100 μmol/L during the first week postpartum. We evaluated 312 twins (laser group, n = 274; non-laser group, n = 38)...
July 20, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28729616/identification-of-a-t-cell-gene-expression-clock-obtained-by-exploiting-a-mz-twin-design
#7
Daniel Remondini, Nathan Intrator, Claudia Sala, Michela Pierini, Paolo Garagnani, Isabella Zironi, Claudio Franceschi, Stefano Salvioli, Gastone Castellani
Many studies investigated age-related changes in gene expression of different tissues, with scarce agreement due to the high number of affecting factors. Similarly, no consensus has been reached on which genes change expression as a function of age and not because of environment. In this study we analysed gene expression of T lymphocytes from 27 healthy monozygotic twin couples, with ages ranging over whole adult lifespan (22 to 98 years). This unique experimental design allowed us to identify genes involved in normative aging, which expression changes independently from environmental factors...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728857/-rosacea-new-data-for-better-care
#8
B Cribier
In the last 10 years, numerous studies have been published that throw new light on rosacea, in all areas of the disease. This overview summarises all the key developments, based on the indexed bibliography appearing in Medline between 2007 and 2017. Recent epidemiological data show that the prevalence of the disease is doubtless greater than estimated hitherto (more than 10% of adults in some countries) and that we should not overlook rosacea in subjects with skin phototypes V or VI, a condition that exists on all continents...
July 17, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28728838/kcnq2-encephalopathy-a-case-due-to-a-de-novo-deletion
#9
Carlotta Spagnoli, Grazia Gabriella Salerno, Alessandro Iodice, Daniele Frattini, Francesco Pisani, Carlo Fusco
KCNQ2 encephalopathy is characterized by severely abnormal EEG, neonatal-onset epilepsy and developmental delay. It is caused by mutations (typically missense) in the KCNQ2 gene, encoding the voltage gated potassium channel Kv7.2 and leading to a negative-dominant effect. We present one case experiencing recurrent neonatal seizures with changing hemispheres of origin, reminiscent of epilepsy of infancy with migrating focal seizures. At 9months of age the patient is still seizure-free on carbamazepine, although he is developing a spastic-dystonic tetraplegia with severe dysphagia...
July 17, 2017: Brain & Development
https://www.readbyqxmd.com/read/28728549/binomial-outcomes-in-dataset-with-some-clusters-of-size-two-can-the-dependence-of-twins-be-accounted-for-a-simulation-study-comparing-the-reliability-of-statistical-methods-based-on-a-dataset-of-preterm-infants
#10
Odile Sauzet, Janet L Peacock
BACKGROUND: The analysis of perinatal outcomes often involves datasets with some multiple births. These are datasets mostly formed of independent observations and a limited number of clusters of size two (twins) and maybe of size three or more. This non-independence needs to be accounted for in the statistical analysis. Using simulated data based on a dataset of preterm infants we have previously investigated the performance of several approaches to the analysis of continuous outcomes in the presence of some clusters of size two...
July 20, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28728213/performance-of-non-invasive-prenatal-screening-for-fetal-aneuploidy-in-twin-pregnancies-a-meta-analysis
#11
Hong Liao, Shanling Liu, He Wang
OBJECTIVE: The objective of this study was to review the published studies of non-invasive prenatal screening (NIPS) in twin pregnancies and to evaluate the performance for screening fetal trisomies 21, 18, and 13 in twin pregnancies. METHOD: Ten eligible studies were included in this meta-analysis. Data analysis, heterogeneity exploring, meta-regression and subgroup analysis were all conducted with Meta-DiSc 1.4. Quality assessments were carried out with the Quality Assessment Tool for Diagnostic Accuracy Studies (QUADAS-2)...
July 20, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28727977/the-vanishing-twin-syndrome-two-cases-of-extreme-malformations-associated-with-vanished-twins
#12
Julia K Shinnick, Nasim Khoshnam, Sydney R Archer, Philip C Quigley, Haynes Robinson, Sarah Keene, Matthew T Santore, Sarah Hill, Binita Patel, Bahig M Shehata
Two cases of devastating fetal malformations associated with vanished monochorionic twins were identified upon review of pathology files. A 35-year-old G1P0 woman and 36-year-old G3P1 woman were both diagnosed with an intrauterine twin gestation via transvaginal ultrasound at 10 weeks. The spectrum of fetal anomalies ranged from omphalocele, bilateral upper extremity, and unilateral lower extremity hypoplasia, to craniofacial malformation with diaphragmatic hernia. On histopathologic examination, the placentas demonstrated vascular anastomoses between the surviving co-twin and the "vanished" fetal sac...
July 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28727976/monozygotic-twins-discordant-for-trisomy-13-a-case-of-trisomic-rescue-supporting-the-continued-need-for-first-trimester-ultrasound
#13
Patrick McFadden, Sarah Smithson, Robert Massaro, Jialing Huang, Gail T Prado, Wendy Shertz
Monozygotic twins with discordant karyotypes for trisomy 13 are rare. We report a case of a spontaneously conceived pregnancy who presented with first-trimester ultrasound finding of umbilical cord cyst and increased nuchal translucency in Twin A and no abnormalities in Twin B. Amniocentesis revealed 47,XY,+13 karyotype in Twin A and 46,XY karyotype in Twin B. Selective fetal reduction was performed for Twin A. Twin B was delivered at 32 weeks gestation with normal phenotype. Peripheral blood karyotype revealed 15% mosaicism for trisomy 13 and skin fibroblast revealed 46,XY karyotype...
July 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28727943/the-genetic-background-of-metabolic-trait-clusters-in-children-and-adolescents
#14
Karri Silventoinen, Élvio Gouveia, Aline Jelenkovic, José Maia, António M Antunes, Miguel A A Pinheiro de Carvalho, António M Brehm, Martine Thomis, Johan Lefevre, Jaakko Kaprio, Duarte Freitas
BACKGROUND: It is well known that metabolic risk factors of cardiovascular diseases are correlated, but the background of this clustering in children is more poorly known than in adults. Thus, we studied the contribution of genetic and environmental factors to the clustering of metabolic traits in childhood and adolescence. DATA AND METHODS: Nine metabolic traits were measured in 214 complete twin pairs aged 3-18 years in the Autonomous Region of Madeira, Portugal, in 2007 and 2008...
July 20, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28727730/do-mz-twins-have-discordant-experiences-of-friendship-a-qualitative-hypothesis-generating-mz-twin-differences-study
#15
Kathryn Asbury, Nicola Moran, Robert Plomin
Using a qualitative monozygotic (MZ) twin differences design we explored whether adolescent MZ twins report discordant peer relationships and, if so, whether they perceive them as causes, consequences or correlates of discordant behaviour. We gathered free-response questionnaire data from 497 families and conducted in-depth telephone interviews with 97 of them. Within this dataset n = 112 families (23% of the sample) described discordant peer relationships. Six categories of discordance were identified (peer victimisation, peer rejection, fewer friends, different friends, different attitudes to friendship and dependence on co-twin)...
2017: PloS One
https://www.readbyqxmd.com/read/28725948/genomics-and-epigenomics-in-rheumatic-diseases-what-do-they-provide-in-terms-of-diagnosis-and-disease-management
#16
Patricia Castro-Santos, Roberto Díaz-Peña
Most rheumatic diseases are complex or multifactorial entities with pathogeneses that interact with both multiple genetic factors and a high number of diverse environmental factors. Knowledge of the human genome sequence and its diversity among populations has provided a crucial step forward in our understanding of genetic diseases, identifying many genetic loci or genes associated with diverse phenotypes. In general, susceptibility to autoimmunity is associated with multiple risk factors, but the mechanism of the environmental component influence is poorly understood...
July 20, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28725171/spontaneous-twin-pregnancy-with-live-births-after-cryopreservation-and-re-implantation-of-ovarian-tissue
#17
Milan Milenkovic, Mats Brännström, Cesar Diaz-Garcia, Kersti Lundin, Ulrika Selleskog, Brita Söderlund, Ali Khatibi, Berit Gull, Hans Bokström, Claudia Mateoiu, Levent M Akyürek, Ann Thurin-Kjellberg
No abstract text is available yet for this article.
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/28724905/flowering-time-in-banana-musa-spp-a-day-neutral-plant-is-controlled-by-at-least-three-flowering-locus-t-homologues
#18
Akhilesh K Chaurasia, Hemant B Patil, Bal Krishna, V R Subramaniam, Prafullachandra V Sane, Aniruddha P Sane
Banana is an important day neutral food crop with a long flowering/fruiting cycle that is affected by hot summers or cold winters in different places. Manipulating its life cycle requires an understanding of its flowering time machinery to bypass these stresses. Twelve FLOWERING LOCUS T (FT) and two TWIN SISTER OF FT (TSF) members were isolated from banana and their organization and expression pattern studied during development in two varieties that differ in flowering time namely Grand Nain (AAA genotype) and Hill banana (AAB genotype)...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724900/enhanced-differential-expression-statistics-for-data-independent-acquisition-proteomics
#19
Tomi Suomi, Laura L Elo
We describe a new reproducibility-optimization method ROPECA for statistical analysis of proteomics data with a specific focus on the emerging data-independent acquisition (DIA) mass spectrometry technology. ROPECA optimizes the reproducibility of statistical testing on peptide-level and aggregates the peptide-level changes to determine differential protein-level expression. Using a 'gold standard' spike-in data and a hybrid proteome benchmark data we show the competitive performance of ROPECA over conventional protein-based analysis as well as state-of-the-art peptide-based tools especially in DIA data with consistent peptide measurements...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724480/neuroticism-and-the-overlap-between-autistic-and-adhd-traits-findings-from-a-population-sample-of-young-adult-australian-twins
#20
Shin-Ho Park, Adam J Guastella, Michael Lynskey, Arpana Agrawal, John N Constantino, Sarah E Medland, Yun Ju C Song, Nicholas G Martin, Lucía Colodro-Conde
Neuroticism, a 'Big Five' personality trait, has been associated with sub-clinical traits of both autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD). The objective of the current study was to examine whether causal overlap between ASD and ADHD traits can be accounted for by genetic and environmental risk factors that are shared with neuroticism. We performed twin-based structural equation modeling using self-report data from 12 items of the Neo Five-Factor Inventory Neuroticism domain, 11 Social Responsiveness Scale items, and 12 Adult ADHD Self-Report Scale items obtained from 3,170 young adult Australian individual twins (1,081 complete pairs)...
August 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
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