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https://www.readbyqxmd.com/read/28231701/the-potential-interaction-between-ewe-body-condition-score-and-nutrition-during-very-late-pregnancy-and-lactation-on-the-performance-of-twin-bearing-ewes-and-their-lambs
#1
Lydia Cranston, Paul Kenyon, Rene Corner-Thomas, Steve Morris
Objective: The present study aimed to determine the impact of ewe BCS (over a range of 2.0 to 3.0) and nutritional treatments (consisting of differing herbage masses) during very late pregnancy and lactation and their potential interaction on the performance of twin-bearing ewes and their lambs to weaning. Methods: On day [42 of pregnancy, twin-bearing ewes with a body condition score (BCS) of 2.0, 2.5 or 3.0 were allocated to a "Moderate' or 'Unrestricted' nutritional treatment until day 95 of lactation (weaning)...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231603/the-effect-of-birth-order-on-neonatal-morbidity-and-mortality-in-very-preterm-twins
#2
Elad Mei-Dan, Jyotsna Shah, Shoo Lee, Prakesh S Shah, Kellie E Murphy
Objective  This retrospective cohort study examined the effect of birth order on neonatal morbidity and mortality in very preterm twins. Study Design Using 2005 to 2012 data from the Canadian Neonatal Network, very preterm twins born between 24 (0/7) and 32 (6/7) weeks of gestation were included. Odds of morbidity and mortality of second-born cotwins compared with first-born cotwins were examined by matched-pair analysis. Outcomes were neonatal death, severe brain injury (intraventricular hemorrhage grade 3 or 4 or persistent periventricular echogenicity), bronchopulmonary dysplasia, severe retinopathy of prematurity (ROP) (> stage 2), necrotizing enterocolitis (≥ stage 2), and respiratory distress syndrome (RDS)...
February 23, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28231064/three-dimensional-ultrasound-for-prenatal-assessment-of-conjoined-twins-additional-advantages
#3
Tuangsit Wataganara, Pornpimol Ruangvutilert, Prasert Sunsaneevithayakul, Kusol Russameecharoen, Katika Nawapun, Nisarat Phithakwatchara
Conjoined twins are a rare, but serious, complication of monozygotic twins. Early prenatal diagnosis of conjoined twins is increasingly made with transvaginal ultrasound and color Doppler studies. Most prenatally diagnosed conjoined twins are terminated due to the high perinatal mortality, but advancement in pediatric surgery has allowed for successful postnatal separation in a small number of cases, and some parents may consider this option over termination of pregnancy. It is important to get a detailed prenatal ultrasound for the site and extent of fusion for an accurate categorization...
February 23, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28230711/asperger-syndrome-and-early-onset-schizophrenia-associated-with-a-novel-mecp2-deleterious-missense-variant
#4
Aurore Curie, Gaëtan Lesca, Gérald Bussy, Sabine Manificat, Valérie Arnaud, Sibylle Gonzalez, Olivier Revol, Alain Calender, Daniel Gérard, Vincent des Portes
Methyl-CpG-binding protein 2 (MECP2) deleterious variants, which are responsible for Rett syndrome in girls, are involved in a wide spectrum of developmental disabilities in males. A neuropsychiatric phenotype without intellectual disability is uncommon in patients with MECP2 deleterious variants. We report on two dizygotic twins with an MECP2-related psychiatric disorder without intellectual disability. Neuropsychological and psychiatric phenotype assessments were performed, and a genetic analysis was carried out...
February 22, 2017: Psychiatric Genetics
https://www.readbyqxmd.com/read/28230406/test-retest-reliability-of-the-facial-expression-labeling-task
#5
Jennifer L Cecilione, Lance M Rappaport, Brad Verhulst, Dever M Carney, R J R Blair, Melissa A Brotman, Ellen Leibenluft, Daniel S Pine, Roxann Roberson-Nay, John M Hettema
Recognizing others' emotional expressions is vital for socioemotional development; impairments in this ability occur in several psychiatric disorders. Further study is needed to map the development of this ability and to evaluate its components as potential transdiagnostic endophenotypes. Before doing so, however, research is required to substantiate the test-retest reliability of scores of the face emotion identification tasks linked to developmental psychopathology. The current study estimated test-retest reliability of scores of one such task, the facial expression labeling task (FELT) among a sample of twin children (N = 157; ages 9-14)...
February 23, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28230064/direct-observation-of-intrinsic-twin-domains-in-tetragonal-ch3nh3pbi3
#6
Mathias Uller Rothmann, Wei Li, Ye Zhu, Udo Bach, Leone Spiccia, Joanne Etheridge, Yi-Bing Cheng
Organic-inorganic hybrid perovskites are exciting candidates for next-generation solar cells, with CH3NH3PbI3 being one of the most widely studied. While there have been intense efforts to fabricate and optimize photovoltaic devices using CH3NH3PbI3, critical questions remain regarding the crystal structure that governs its unique properties of the hybrid perovskite material. Here we report unambiguous evidence for crystallographic twin domains in tetragonal CH3NH3PbI3, observed using low-dose transmission electron microscopy and selected area electron diffraction...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28229835/-neurodevelopmental-outcomes-of-very-preterm-or-very-low-birth-weigth-infants-comparison-of-monochorionic-and-dichorionic-twins-with-singletons
#7
Adelaide Taborda, Guiomar Oliveira
INTRODUCTION: Twins are associated with a delayed development and cerebral palsy. The purpose of this work was to compare the neurologic morbidity in very preterm or very low birth weight dichorionic and monochorionic twins with singletons. MATERIAL AND METHODS: We conducted a retrospective cohort study of livebirths lowest through 32 weeks of gestation or very low weight infants admitted to Neonatal Intensive Care Unit of a level III hospital, between 2006 and 2010...
November 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28229062/two-techniques-of-tonsillectomy-performed-in-identical-twins-a-case-report
#8
Ali Bagherihagh, Seyed Mousa Sadr Hossein
INTRODUCTION: Cold dissection (CD) and bipolar cautery dissection (BCD) techniques are two common surgical tonsillectomy procedures used in the clinic. Obstruction has become more prevalent as the major surgical indication and is most prominently observed in younger children. CASE REPORT: In this report, we aimed to explain the abovementioned surgical techniques in detail and compare the results in identical twins (monozygote twins). Using low energy electrocautery, irrigating the operation site continuously during cauterization, avoiding unnecessary sutures, and direct cautery to the tonsil bed are all effective measures that have diminished post-op pain in bipolar electrocautery dissection, compared to cold dissection tonsillectomy...
January 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28225781/chronic-pain-depression-and-cardiovascular-disease-linked-through-a-shared-genetic-predisposition-analysis-of-a-family-based-cohort-and-twin-study
#9
Oliver van Hecke, Lynne J Hocking, Nicola Torrance, Archie Campbell, Sandosh Padmanabhan, David J Porteous, Andrew M McIntosh, Andrea V Burri, Haruka Tanaka, Frances M K Williams, Blair H Smith
BACKGROUND: Depression and chronic pain are the two most important causes of disability (Global Burden of Disease Study 2013). They occur together more frequently than expected and both conditions have been shown to be co-morbid with cardiovascular disease. Although shared socio-demographic risk factors (e.g. gender, deprivation) might explain the co-morbidity of these three conditions, we hypothesised that these three long-term, highly prevalent conditions co-occur and may be due to shared familial risk, and/or genetic factors...
2017: PloS One
https://www.readbyqxmd.com/read/28225591/high-mobility-gasb-nanostructures-cointegrated-with-inas-on-si
#10
Mattias Borg, Heinz Schmid, Johannes Gooth, Marta D Rossell, Davide Cutaia, Moritz Knoedler, Nicolas Bologna, Stephan Wirths, Kirsten E Moselund, Heike Riel
GaSb nanostructures integrated on Si substrates are of high interest for p-type transistors and mid-IR photodetectors. Here, we investigate the MOCVD growth and properties of GaSb nanostructures monolithically integrated onto silicon-on-insulator wafers using template-assisted selective epitaxy. A high degree of morphological control allows for GaSb nanostructures with critical dimensions down to 20 nm. Detailed investigation of growth parameters reveals that the GaSb growth rate is governed by the desorption processes of an Sb surface, and in turn is insensitive to changes in material transport efficiency...
February 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28225112/enhanced-thermoelectricity-of-three-dimensionally-mesostructured-bixsb2-xte3-nanoassemblies-from-micro-scaled-open-gaps-to-isolated-sealed-mesopores
#11
Tsung-Han Chen, Ping-Yu Lin, Hsiu-Cheng Chang, Chun-Hua Chen
We describe an innovative interfacial design concept and nanostructuring of novel BixSb2-xTe3 (BST) nanoassembled films comprising unique air-solid interfaces from micro-scaled open gaps to isolated sealed mesopores, and high-quality solid-solid ones including the coherent grain boundaries and specific twins, utilizing pulsed laser deposition (PLD), for potentially activating multiple thermoelectric enhancing mechanisms. The unusual mesopore embedded BST films exhibit the highest power factor of ∼33 μW cm(-1) K(-2), which is comparable to or higher than the previously reported values for BST, and the corresponding relatively low thermal diffusivity in contrast to that for dense pore-less BST films evidently reveals the crucial role of the three-dimensionally and densely arranged air-solid interfaces in significantly arising the phonon scattering...
February 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28224735/genetic-risk-variants-for-social-anxiety
#12
Murray B Stein, Chia-Yen Chen, Sonia Jain, Kevin P Jensen, Feng He, Steven G Heeringa, Ronald C Kessler, Adam Maihofer, Matthew K Nock, Stephan Ripke, Xiaoying Sun, Michael L Thomas, Robert J Ursano, Jordan W Smoller, Joel Gelernter
Social anxiety is a neurobehavioral trait characterized by fear and reticence in social situations. Twin studies have shown that social anxiety has a heritable basis, shared with neuroticism and extraversion, but genetic studies have yet to demonstrate robust risk variants. We conducted genomewide association analysis (GWAS) of subjects within the Army Study To Assess Risk and Resilience in Servicemembers (Army STARRS) to (i) determine SNP-based heritability of social anxiety; (ii) discern genetic risk loci for social anxiety; and (iii) determine shared genetic risk with neuroticism and extraversion...
March 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/28223511/a-signal-sequence-suppressor-mutant-that-stabilizes-an-assembled-state-of-the-twin-arginine-translocase
#13
Qi Huang, Felicity Alcock, Holger Kneuper, Justin C Deme, Sarah E Rollauer, Susan M Lea, Ben C Berks, Tracy Palmer
The twin-arginine protein translocation (Tat) system mediates transport of folded proteins across the cytoplasmic membrane of bacteria and the thylakoid membrane of chloroplasts. The Tat system of Escherichia coli is made up of TatA, TatB, and TatC components. TatBC comprise the substrate receptor complex, and active Tat translocases are formed by the substrate-induced association of TatA oligomers with this receptor. Proteins are targeted to TatBC by signal peptides containing an essential pair of arginine residues...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28223478/phenotypic-and-genetic-evidence-for-a-unifactorial-structure-of-spatial-abilities
#14
Kaili Rimfeld, Nicholas G Shakeshaft, Margherita Malanchini, Maja Rodic, Saskia Selzam, Kerry Schofield, Philip S Dale, Yulia Kovas, Robert Plomin
Spatial abilities encompass several skills differentiable from general cognitive ability (g). Importantly, spatial abilities have been shown to be significant predictors of many life outcomes, even after controlling for g. To date, no studies have analyzed the genetic architecture of diverse spatial abilities using a multivariate approach. We developed "gamified" measures of diverse putative spatial abilities. The battery of 10 tests was administered online to 1,367 twin pairs (age 19-21) from the UK-representative Twins Early Development Study (TEDS)...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28223034/children-s-head-motion-during-fmri-tasks-is-heritable-and-stable-over-time
#15
Laura E Engelhardt, Mary Abbe Roe, Jenifer Juranek, Dana DeMaster, K Paige Harden, Elliot M Tucker-Drob, Jessica A Church
Head motion during fMRI scans negatively impacts data quality, and as post-acquisition techniques for addressing motion become increasingly stringent, data retention decreases. Studies conducted with adult participants suggest that movement acts as a relatively stable, heritable phenotype that serves as a marker for other genetically influenced phenotypes. Whether these patterns extend downward to childhood has critical implications for the interpretation and generalizability of fMRI data acquired from children...
February 1, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28221285/genome-wide-methylation-analysis-of-a-large-population-sample-shows-neurological-pathways-involvement-in-chronic-widespread-musculoskeletal-pain-cwp
#16
Gregory Livshits, Ida Malkin, Maxim B Freidin, Yudong Xia, Fei Gao, Jun Wang, Timothy D Spector, Alex MacGregor, Jordana T Bell, Frances Mk Williams
Chronic widespread musculoskeletal pain (CWP), has a considerable heritable component, which remains to be explained. Epigenetic factors may contribute to and account for some of the heritability estimate. We analysed epigenome-wide methylation using MeDIPseq in whole blood DNA from 1708 monozygotic (MZ) and dizygotic (DZ) Caucasian twins having CWP prevalence of 19.9%. Longitudinally stable methylation bins (lsBINs), were established by testing repeated measurements conducted ≥3 years apart, n=292. DNA methylation variation at lsBINs was tested for association with CWP in a discovery set of 50 MZ twin pairs discordant for CWP, and in an independent dataset (n=1608 twins), and the results from the two samples were combined using Fisher's method...
February 15, 2017: Pain
https://www.readbyqxmd.com/read/28220830/the-genetic-and-environmental-aetiology-of-spatial-mathematics-and-general-anxiety
#17
Margherita Malanchini, Kaili Rimfeld, Nicholas G Shakeshaft, Maja Rodic, Kerry Schofield, Saskia Selzam, Philip S Dale, Stephen A Petrill, Yulia Kovas
Individuals differ in their level of general anxiety as well as in their level of anxiety towards specific activities, such as mathematics and spatial tasks. Both specific anxieties correlate moderately with general anxiety, but the aetiology of their association remains unexplored. Moreover, the factor structure of spatial anxiety is to date unknown. The present study investigated the factor structure of spatial anxiety, its aetiology, and the origins of its association with general and mathematics anxiety in a sample of 1,464 19-21-year-old twin pairs from the UK representative Twins Early Development Study...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220618/progesterone-pessary-or-cerclage-for-preterm-birth-prevention-in-twins-no-answers-yet
#18
J R Biggio
No abstract text is available yet for this article.
February 20, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28220550/metabolomic-profiling-in-umbilical-venous-plasma-reveals-effects-of-dietary-rumen-protected-arginine-or-n-carbamylglutamate-supplementation-in-nutrient-restricted-hu-sheep-during-pregnancy
#19
L Sun, H Zhang, Y Fan, Y Guo, G Zhang, H Nie, F Wang
Maternal nutrient restriction during pregnancy is a major problem worldwide for human and animal production. Arginine (Arg) is critical to health, growth and reproduction. N-carbamylglutamate (NCG), a key enzyme in arginine synthesis, is not extensively degraded in rumen. The aim of this study was to investigate ameliorating effects of rumen-protected arginine (RP-Arg) and NCG supplementation on dietary in undernourished Hu sheep during gestation. From day 35 to 110 of gestation, 32 Hu ewes carrying twin foetuses were randomly divided into four groups: a control (CG) group (n = 8; fed 100% National Research Council (NRC) requirements for pregnant sheep), a nutrient-restricted (RG) group (n = 8; fed 50% NRC requirements, which included 50% mineral-vitamin mixture) and two treatment (Arg and NCG) groups (n = 8; fed 50% NRC requirements supplemented with 20 g/day RP-Arg or 5 g/day NCG, which included 50% mineral-vitamin mixture)...
February 20, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28220234/prevalence-of-dieting-and-fear-of-weight-gain-across-ages-a-community-sample-from-adolescents-to-the-elderly
#20
Margarita C T Slof-Op 't Landt, Eric F van Furth, Catharina E M van Beijsterveldt, Meike Bartels, Gonneke Willemsen, Eco J de Geus, Lannie Ligthart, Dorret I Boomsma
OBJECTIVES: The current study aimed to define the prevalence of dieting and fear of weight gain among men and women across the entire lifespan and identify factors associated with them. METHODS: Data were available for 31,636 participants (60.2% women; age 13-98 years) from the Netherlands Twin Register. Dieting and fear of weight gain were described by age and sex. Associations with BMI, exercise behavior, urbanization and educational attainment were examined by regression analyses in 19,294 participants...
February 20, 2017: International Journal of Public Health
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