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https://www.readbyqxmd.com/read/29150722/cross-lagged-analysis-of-interplay-between-differential-traits-in-sibling-pairs-validation-and-application-to-parenting-behavior-and-adhd-symptomatology
#1
Arden Moscati, Brad Verhulst, Kevin McKee, Judy Silberg, Lindon Eaves
Understanding the factors that contribute to behavioral traits is a complex task, and partitioning variance into latent genetic and environmental components is a useful beginning, but it should not also be the end. Many constructs are influenced by their contextual milieu, and accounting for background effects (such as gene-environment correlation) is necessary to avoid bias. This study introduces a method for examining the interplay between traits, in a longitudinal design using differential items in sibling pairs...
November 17, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/29150721/adaptive-snp-set-association-testing-in-generalized-linear-mixed-models-with-application-to-family-studies
#2
Jun Young Park, Chong Wu, Saonli Basu, Matt McGue, Wei Pan
In genome-wide association studies (GWAS), it has been increasingly recognized that, as a complementary approach to standard single SNP analyses, it may be beneficial to analyze a group of functionally related SNPs together. Among the existent population-based SNP-set association tests, two adaptive tests, the aSPU test and the aSPUpath test, offer a powerful and general approach at the gene- and pathway-levels by data-adaptively combining the results across multiple SNPs (and genes) such that high statistical power can be maintained across a wide range of scenarios...
November 17, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/29150678/dog-ownership-and-the-risk-of-cardiovascular-disease-and-death-a-nationwide-cohort-study
#3
Mwenya Mubanga, Liisa Byberg, Christoph Nowak, Agneta Egenvall, Patrik K Magnusson, Erik Ingelsson, Tove Fall
Dogs may be beneficial in reducing cardiovascular risk in their owners by providing social support and motivation for physical activity. We aimed to investigate the association of dog ownership with incident cardiovascular disease (CVD) and death in a register-based prospective nation-wide cohort (n = 3,432,153) with up to 12 years of follow-up. Self-reported health and lifestyle habits were available for 34,202 participants in the Swedish Twin Register. Time-to-event analyses with time-updated covariates were used to calculate hazard ratios (HR) with 95% confidence intervals (CI)...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150114/osteopetrosis-in-twin-infants-mimicking-leukemia
#4
Mili Jain, Purvi Mittal, Ayush Shukla, Ashutosh Kumar
No abstract text is available yet for this article.
October 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/29148066/predicting-the-use-of-corporal-punishment-child-aggression-parent-religiosity-and-the-bdnf-gene
#5
Reut Avinun, Maayan Davidov, David Mankuta, Ariel Knafo-Noam
Corporal punishment (CP) has been associated with deleterious child outcomes, highlighting the importance of understanding its underpinnings. Although several factors have been linked with parents' CP use, genetic influences on CP have rarely been studied, and an integrative view examining the interplay between different predictors of CP is missing. We focused on the separate and joint effects of religiosity, child aggression, parent's gender, and a valine (Val) to methionine (Met) substitution in the brain-derived neurotrophic factor (BDNF) gene...
November 17, 2017: Aggressive Behavior
https://www.readbyqxmd.com/read/29146921/plastic-deformation-behaviour-of-single-crystalline-martensite-of-ti-nb-shape-memory-alloy
#6
Masaki Tahara, Nao Okano, Tomonari Inamura, Hideki Hosoda
β-Ti alloys have attracted considerable attention as new biomedical shape memory alloys. Given the critical importance of the plastic deformation in the martensite phase for the shape memory effect and superelasticity, we investigated here the plastic deformation behaviour of a single crystal of α″ (orthorhombic) martensite of Ti-27 mol%Nb shape memory alloy obtained by the stress-induced martensitic transformation of a single crystal of the parent β phase. Four operative plastic deformation modes were observed, including two dislocation slips and two twinnings...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146625/cyanotic-congenital-heart-disease-following-fertility-treatments-in-the-united-states-from-2011-to-2014
#7
Alireza A Shamshirsaz, Zhoobin H Bateni, Haleh Sangi-Haghpeykar, Sara E Arian, Hadi Erfani, Amir A Shamshirsaz, Alfred Abuhamad, Karin A Fox, Susan M Ramin, Amirhossein Moaddab, Shiraz A Maskatia, Bahram Salmanian, Keila N Lopez, Pardis Hosseinzadeh, Amy K Schutt, Ahmed A Nassr, Jimmy Espinoza, Gary A Dildy, Michael A Belfort, Steven L Clark
OBJECTIVE: To examine the risk for cyanotic congenital heart diseases (CCHDs) among live births in the USA, resulting from various forms of infertility treatments. METHODS: This study is a cross-sectional analysis of live births in the USA from 2011 to 2014. Infertility treatments are categorised into two of the following groups on birth certificates: assisted reproductive technology (ART) fertility treatment (surgical egg removal; eg, in vitro fertilisation and gamete intrafallopian transfer) and non-ART fertility treatment (eg, medical treatment and intrauterine insemination)...
November 16, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29146097/descriptive-study-of-current-therapeutic-practices-clinical-reproductive-findings-and-incidence-of-pregnancy-loss-in-intensively-managed-thoroughbred-mares
#8
B V Rose, M Firth, B Morris, J M Roach, D C Wathes, K L P Verheyen, A M de Mestre
Therapeutic practices in equine reproductive medicine have dramatically evolved over the last 20 years but current usage is not described. The aims of this study were to provide a description of medication use and clinical findings of reproductive examinations alongside measures of reproductive efficiency in thoroughbreds. A prospective cohort study was conducted in the 2013 and 2014 breeding seasons. Mare and stallion details, information on veterinary interventions and findings of reproductive ultrasound scans were collected using questionnaires and entered into a custom-designed Microsoft Access database...
November 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29145429/heritability-of-the-morphology-of-optic-nerve-head-and-surrounding-structures-the-healthy-twin-study
#9
Jong Chul Han, Hyeonyoung Ko, Seung Hoon Kim, Taekkwan Rhee, Seung Wan Nam, Sungsoon Hwang, Ga-In Lee, Joohon Sung, Yun-Mi Song, Changwon Kee
BACKGROUND: Optic nerve head (ONH) and surrounding structures such as β-zone peripapillary atrophy (PPA) are important structures in glaucomatous pathogenesis. Thus, for understanding genetic components in glaucoma pathogenesis, it is necessary to evaluate the heritability of ONH and surrounding structures. The present study investigated the genetic influences on ONH and surrounding structures such as β-zone PPA and retinal vessels. METHODS: A total of 1,205 adult twins and their family members (362 monozygotic (MZ) twin subjects (181 pairs), 64 dizygotic (DZ) twin subjects (32 pairs), and 779 singletons from 261 families), were part of the Korean Healthy Twin Study...
2017: PloS One
https://www.readbyqxmd.com/read/29145053/elucidating-the-urban-levels-sources-and-health-risks-of-polycyclic-aromatic-hydrocarbons-pahs-in-pakistan-implications-for-changing-energy-demand
#10
Naima Hamid, Jabir Hussain Syed, Muhammad Junaid, Adeel Mahmood, Jun Li, Gan Zhang, Riffat Naseem Malik
Due to the severe fuel crisis in terms of natural gas, a paradigm shift in fuel combustion (diesel, gasoline, and biomass) may increase the atmospheric emissions and associated health risks in Pakistan. Present study was aimed to investigate the concentration of fugitive PAHs in the environment (outdoor and indoor settings), associated probabilistic health risk assessment in the exposed population, and possible linkage between fuel consumption patterns and PAHs emissions in twin cities (Rawalpindi and Islamabad) of Pakistan...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29145031/improved-twin-detection-via-tracking-of-individual-kikuchi-band-intensity-of-ebsd-patterns
#11
Travis M Rampton, Stuart I Wright, Michael P Miles, Eric R Homer, Robert H Wagoner, David T Fullwood
Twin detection via EBSD can be particularly challenging due to the fine scale of certain twin types - for example, compression and double twins in Mg. Even when a grid of sufficient resolution is chosen to ensure scan points within the twins, the interaction volume of the electron beam often encapsulates a region that contains both the parent grain and the twin, confusing the twin identification process. The degradation of the EBSD pattern results in a lower image quality metric, which has long been used to imply potential twins...
November 10, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/29144226/do-executive-functions-explain-the-covariance-between-internalizing-and-externalizing-behaviors
#12
Alexander S Hatoum, Soo Hyun Rhee, Robin P Corley, John K Hewitt, Naomi P Friedman
This study examined whether executive functions (EFs) might be common features of internalizing and externalizing behavior problems across development. We examined relations between three EF latent variables (a common EF factor and factors specific to updating working memory and shifting sets), constructed from nine laboratory tasks administered at age 17, to latent growth intercept (capturing stability) and slope (capturing change) factors of teacher- and parent-reported internalizing and externalizing behaviors in 885 individual twins aged 7 to 16 years...
November 16, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29144220/is-low-cognitive-functioning-a-predictor-or-consequence-of-major-depressive-disorder-a-test-in-two-longitudinal-birth-cohorts
#13
Jonathan D Schaefer, Matthew A Scult, Avshalom Caspi, Louise Arseneault, Daniel W Belsky, Ahmad R Hariri, Honalee Harrington, Renate Houts, Sandhya Ramrakha, Richie Poulton, Terrie E Moffitt
Cognitive impairment has been identified as an important aspect of major depressive disorder (MDD). We tested two theories regarding the association between MDD and cognitive functioning using data from longitudinal cohort studies. One theory, the cognitive reserve hypothesis, suggests that higher cognitive ability in childhood decreases risk of later MDD. The second, the scarring hypothesis, instead suggests that MDD leads to persistent cognitive deficits following disorder onset. We tested both theories in the Dunedin Study, a population-representative cohort followed from birth to midlife and assessed repeatedly for both cognitive functioning and psychopathology...
November 16, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29144170/night-work-as-a-risk-factor-for-future-cause-specific-disability-pension-a-prospective-twin-cohort-study-in-sweden
#14
Annina Ropponen, Jurgita Narusyte, Lisa Mather, Ellenor Mittendorfer-Rutz, Torbjörn Åkerstedt, Pia Svedberg
The objectives of the study were to investigate the associations between night work and disability pension (DP) due to all causes, cardiovascular (CVD), mental, and other diagnoses, adjusting for familial confounding. The material of the study included comprehensive survey data on 27 165 Swedish twins born in 1935-1958 that were linked with DP data for the survey period (1998-2003) to 2013. Night work was assessed as years of working nights at least every now and then, and categorized into not at all, 1-10 years and over 10 years...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29143595/why-nature-prevails-over-nurture-in-the-making-of-the-elite-athlete
#15
Evelina Georgiades, Vassilis Klissouras, Jamie Baulch, Guan Wang, Yannis Pitsiladis
While the influence of nature (genes) and nurture (environment) on elite sporting performance remains difficult to precisely determine, the dismissal of either as a contributing factor to performance is unwarranted. It is accepted that a complex interaction of a combination of innumerable factors may mold a talented athlete into a champion. The prevailing view today is that understanding elite human performance will require the deciphering of two major sources of individual differences, genes and the environment...
November 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29143175/vectors-for-expression-of-signal-peptide-dependent-proteins-in-baculovirus-insect-cell-systems-and-their-application-to-expression-and-purification-of-the-high-affinity-immunoglobulin-gamma-fc-receptor-i-in-complex-with-its-gamma-chain
#16
Le T M Le, Jens R Nyengaard, Monika M Golas, Bjoern Sander
Integral membrane proteins play a central role in various cellular functions and are important therapeutic targets. However, technical challenges in the overexpression and purification of membrane proteins often represent a limiting factor for biochemical and structural studies. Here, we constructed a set of vectors, derivatives of MultiBac vectors that can be used to express proteins with a cleavable N-terminal signal peptide in insect cells. We propose these vectors for expression of type I membrane proteins and other secretory pathway proteins that require the signal recognition particle for translocation to the endoplasmic reticulum (ER)...
November 15, 2017: Molecular Biotechnology
https://www.readbyqxmd.com/read/29143063/translating-aetiological-insight-into-sustainable-management-of-type-2-diabetes
#17
REVIEW
Roy Taylor, Alison C Barnes
Using a low-energy diet as a tool, it has been possible to elucidate the sequence of pathophysiological changes that lead to the onset of type 2 diabetes. Negative energy balance in type 2 diabetes causes a profound fall in liver fat content resulting in normalisation of hepatic insulin sensitivity within 7 days. As the period of negative energy balance extends and liver fat levels fall to low normal, the rate of export of triacylglycerol from the liver falls. Consequent to this, the raised pancreas fat content falls and in early type 2 diabetes, normal first-phase insulin secretion becomes re-established with normal plasma glucose control...
November 15, 2017: Diabetologia
https://www.readbyqxmd.com/read/29142885/successful-glycemic-control-using-a-flash-glucose-monitoring-system-for-a-pregnant-woman-with-diabetes-a-case-report
#18
Miyako Kishimoto, Saori Tamada, Yoko Oshiba
Background: Glucose control for pregnant women with glucose intolerance is important, as hyperglycemia may adversely affect the mother and the fetus. Case presentation: We report the case of a pregnant Japanese woman who experienced gestational diabetes mellitus during her first pregnancy and developed impaired glucose tolerance after the delivery. During her second pregnancy with twins, she required up to 75 units of injected insulin to control her postprandial hyperglycemia and occasionally experienced hypoglycemia...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/29142449/single-blastocyst-transfer-the-key-to-reduce-multiple-pregnancy-rates-without-compromising-the-live-birth-rate
#19
Uma M Sundhararaj, Monali V Madne, Reeta Biliangady, Sumana Gurunath, Ambika G Swamy, Indu S T Gopal
Background: Historically, to achieve higher pregnancy rates, multiple embryos were transferred after an in-vitro fertilisation (IVF). However, this practice is being reassessed, because it leads to multiple pregnancies that is known to cause adverse maternal and fetal outcomes. Aim: To compare the pregnancy outcomes in fresh IVF or intracytoplasmic sperm injection (ICSI) cycles among women undergoing elective single blastocyst transfer (eSBT) vs. those undergoing double blastocyst transfer (DBT)...
July 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29142214/plastic-deformation-mechanisms-in-a-severely-deformed-fe-ni-al-c-alloy-with-superior-tensile-properties
#20
Yan Ma, Muxin Yang, Ping Jiang, Fuping Yuan, Xiaolei Wu
Nanostructured metals have high strength while they usually exhibit limited uniform elongation. While, a yield strength of approximately 2.1 GPa and a uniform elongation of about 26% were achieved in a severely deformed Fe-24.8%Ni-6.0%Al-0.38%C alloy in the present work. The plastic deformation mechanisms for the coarse-grained (CG) sample and the cold-rolled (CR) samples of this alloy were investigated by a series of mechanical tests and microstructure characterizations before and after tensile tests. No obvious phase transformation was observed during the tensile deformation for the CG sample, and the plastic deformation was found to be mainly accommodated by deformation twins and dislocation behaviors...
November 15, 2017: Scientific Reports
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