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https://www.readbyqxmd.com/read/29461998/commentary-on-same-sex-and-different-sex-parent-households-and-child-health-outcomes-additional-sources-of-same-sex-parenting-stress-to-consider
#1
Nicole E Rossi
No abstract text is available yet for this article.
February 2018: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/29454682/short-communication-genetic-lag-represents-commercial-herd-genetic-merit-more-accurately-than-the-4-path-selection-model
#2
C D Dechow, G W Rogers
Expectation of genetic merit in commercial dairy herds is routinely estimated using a 4-path genetic selection model that was derived for a closed population, but commercial herds using artificial insemination sires are not closed. The 4-path model also predicts a higher rate of genetic progress in elite herds that provide artificial insemination sires than in commercial herds that use such sires, which counters other theoretical assumptions and observations of realized genetic responses. The aim of this work is to clarify whether genetic merit in commercial herds is more accurately reflected under the assumptions of the 4-path genetic response formula or by a genetic lag formula...
February 14, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29442549/age-at-exposure-to-parental-suicide-and-the-subsequent-risk-of-suicide-in%C3%A2-young-people
#3
Kuan-Ying Lee, Chung-Yi Li, Kun-Chia Chang, Tsung-Hsueh Lu, Ying-Yeh Chen
BACKGROUND: We investigated the age at exposure to parental suicide and the risk of subsequent suicide completion in young people. The impact of parental and offspring sex was also examined. METHOD: Using a cohort study design, we linked Taiwan's Birth Registry (1978-1997) with Taiwan's Death Registry (1985-2009) and identified 40,249 children who had experienced maternal suicide (n = 14,431), paternal suicide (n = 26,887), or the suicide of both parents (n = 281)...
January 2018: Crisis
https://www.readbyqxmd.com/read/29415077/genetic-responsiveness-of-african-buffalo-to-environmental-stressors-a-role-for-epigenetics-in-balancing-autosomal-and-sex-chromosome-interactions
#4
Pim van Hooft, Eric R Dougherty, Wayne M Getz, Barend J Greyling, Bas J Zwaan, Armanda D S Bastos
In the African buffalo (Syncerus caffer) population of the Kruger National Park (South Africa) a primary sex-ratio distorter and a primary sex-ratio suppressor have been shown to occur on the Y chromosome. A subsequent autosomal microsatellite study indicated that two types of deleterious alleles with a negative effect on male body condition, but a positive effect on relative fitness when averaged across sexes and generations, occur genome-wide and at high frequencies in the same population. One type negatively affects body condition of both sexes, while the other acts antagonistically: it negatively affects male but positively affects female body condition...
2018: PloS One
https://www.readbyqxmd.com/read/29360882/lack-of-sleep-is-associated-with-internet-use-for-leisure
#5
So Young Kim, Min-Su Kim, Bumjung Park, Jin-Hwan Kim, Hyo Geun Choi
OBJECTIVE: Previous studies have suggested that excessive internet use may cause lack of sleep. However, recent studies have hypothesized that lack of sleep may instigate internet use for leisure. To elucidate the potential effects of sleep time on internet use, we explored the different associations between sleep time and internet use according to its purpose. METHODS: The population-based, cross-sectional study group from the Korea Youth Risk Behavior Web-based Survey (KYRBWS) collected data from 57,425 middle school students in 2014 and 2015...
2018: PloS One
https://www.readbyqxmd.com/read/29352590/allergic-proctocolitis-is-a-risk-factor-for-functional-gastrointestinal-disorders-in-children
#6
Giovanni Di Nardo, Cesare Cremon, Simone Frediani, Sandra Lucarelli, Maria Pia Villa, Vincenzo Stanghellini, Giuseppe La Torre, Luigi Martemucci, Giovanni Barbara
OBJECTIVE: To test the hypothesis that allergic proctocolitis, a cause of self-limiting rectal bleeding in infants, can predispose to the development of functional gastrointestinal disorders (FGIDs) later in childhood. STUDY DESIGN: We studied a cohort of 80 consecutive patients diagnosed with allergic proctocolitis. Their sibling or matched children presenting to the same hospital for minor trauma served as controls. Parents of the patients with allergic proctocolitis and controls participated in a telephone interview every 12 months until the child was at least 4 years old...
January 15, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29335572/variation-and-constraints-in-hybrid-genome-formation
#7
Anna Runemark, Cassandra N Trier, Fabrice Eroukhmanoff, Jo S Hermansen, Michael Matschiner, Mark Ravinet, Tore O Elgvin, Glenn-Peter Sætre
Hybridization is an important source of variation; it transfers adaptive genetic variation across species boundaries and generates new species. Yet, the limits to viable hybrid genome formation are poorly understood. Here we investigated to what extent hybrid genomes are free to evolve by sequencing the genomes of four island populations of the homoploid hybrid Italian sparrow Passer italiae. We report that a variety of novel and fully functional hybrid genomic combinations are likely to have arisen independently on Crete, Corsica, Sicily and Malta, with differentiation in candidate genes for beak shape and plumage colour...
January 15, 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29332981/the-unique-and-interactive-effects-of-parent-and-school-bonds-on-adolescent-delinquency
#8
Elaina Sabatine, Melissa Lippold, Kirsten Kainz
Parent and school bonds are protective against delinquency. This study used longitudinal data and multilevel Poisson regression models (MLM) to examine unique and interactive associations of parent and school bonds on youth delinquency in a sample of rural adolescents (n = 945; 84% White). We investigated whether youth sex or transitioning to a new middle school moderated the linkages between parent and school bonds and later delinquency. Results indicated reduced delinquency was associated with positive parent and school relationships...
November 2017: Journal of Applied Developmental Psychology
https://www.readbyqxmd.com/read/29303831/arterial-stiffness-and-peripheral-vascular-resistance-in-offspring-of-hypertensive-parents-influence-of-sex-and-other-confounders
#9
Niels Henrik Buus, Rasmus K Carlsen, Dinah S Khatir, Hans Eiskjær, Michael J Mulvany, Karin Skov
AIM: Established essential hypertension is associated with increased arterial stiffness and peripheral resistance, but the extent of vascular changes in persons genetically predisposed for essential hypertension is uncertain. METHODS: Participants from the Danish Hypertension Prevention Project (DHyPP) (both parents hypertensive) (n = 95, 41 ± 1 years, 53% men) were compared with available spouses (n = 45, 41 ± 1 years) using measurements of ambulatory blood pressure (BP), left ventricular mass index (LVMI), pulse wave velocity, central BP and augmentation index (AIx) in addition to forearm resting and minimal resistance [forearm resting vascular resistance (Rrest) and forearm minimal vascular resistance (Rmin)]...
January 4, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29283947/a-study-on-environmental-factors-for-nonsyndromic-cleft-lip-and-or-palate
#10
Da-Peng Xu, Wei-Dong Qu, Chao Sun, Rong-Yu Cao, Dian-Wei Liu, Ping-Gong Du
The aim of the study was to investigate the association between environmental factors and nonsyndromic cleft of the lip and/or palate (NSCL/P) in Yantai District, China. A retrospective case-control study was carried out. A total of 236 NSCL/P children were selected from Department of Oral and Maxillofacial Surgery of Yantai Stomatological Hospital between September 2013 and December 2016 as cases; 209 controls were chosen from other diagnosis in the same department during the same period. The 2 groups matched age and sex...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29273309/the-satisfactory-growth-and-development-at-2-years-of-age-of-the%C3%A2-intergrowth-21st-fetal-growth-standards-cohort-support-its%C3%A2-appropriateness-for-constructing-international-standards
#11
José Villar, Leila Cheikh Ismail, Eleonora Staines Urias, Francesca Giuliani, Eric O Ohuma, Cesar G Victora, Aris T Papageorghiou, Douglas G Altman, Cutberto Garza, Fernando C Barros, Fabien Puglia, Roseline Ochieng, Yasmin A Jaffer, Julia A Noble, Enrico Bertino, Manorama Purwar, Ruyan Pang, Ann Lambert, Cameron Chumlea, Alan Stein, Michelle Fernandes, Zulfiqar A Bhutta, Stephen H Kennedy
BACKGROUND: The World Health Organization recommends that human growth should be monitored with the use of international standards. However, in obstetric practice, we continue to monitor fetal growth using numerous local charts or equations that are based on different populations for each body structure. Consistent with World Health Organization recommendations, the INTERGROWTH-21st Project has produced the first set of international standards to date pregnancies; to monitor fetal growth, estimated fetal weight, Doppler measures, and brain structures; to measure uterine growth, maternal nutrition, newborn infant size, and body composition; and to assess the postnatal growth of preterm babies...
December 19, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29243876/familial-transmission-of-externalizing-syndromes-in-extended-swedish-families
#12
Kenneth S Kendler, Henrik Ohlsson, Jan Sundquist, Kristina Sundquist
Risk for criminal behavior (CB), alcohol use disorder (AUD), and drug abuse (DA) are known to be familial. We know less about their transmission across three generations. We examined 844,109 probands born in Sweden 1980-1990, their parents, aunts/uncles, and grandparents for registration in population-based registers for CB, AUD, and DA. Mean tetrachoric relative-proband correlations (95% CIs) were highest for DA (+0.24, 0.24-0.25), followed by CB (+0.23,0.22-0.23) and AUD (+0.17, 0.16-0.17). AUD and CB were relatively stably transmitted across generations, while DA resemblance among relatives was stronger in the younger generations...
December 15, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/29177721/is-the-positive-bias-an-adhd-phenomenon-reexamining-the-positive-bias-and-its-correlates-in-a-heterogeneous-sample-of-children
#13
Elizaveta Bourchtein, Julie S Owens, Anne E Dawson, Steven W Evans, Joshua M Langberg, Kate Flory, Elizabeth P Lorch
The goals of this study were to (a) evaluate the presence of the positive bias (PB) in elementary-school-aged children with and without ADHD when PB is defined at the individual level through latent profile analysis and (b) examine the extent to which several correlates (i.e., social functioning, aggression, depression, and anxiety) are associated with the PB. Participants were 233 youth (30% female; 8 to 10 years of age), 51% of whom met criteria for ADHD. During an individual evaluation, children and parents completed a battery of questionnaires to assess child competence, depression, anxiety, and aggression...
November 25, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/29175685/does-maternal-environmental-tobacco-smoke-interact-with-social-demographics-and-environmental-factors-on-congenital-heart-defects
#14
Xiaoqing Liu, Zhiqiang Nie, Jimei Chen, Xiaoling Guo, Yanqiu Ou, Guanchun Chen, Jinzhuang Mai, Wei Gong, Yong Wu, Xiangmin Gao, Yanji Qu, Erin M Bell, Shao Lin, Jian Zhuang
Congenital heart defects (CHDs) are a major cause of death in infancy and childhood. Major risk factors for most CHDs, particularly those resulting from the combination of environmental exposures with social determinants and behaviors, are still unknown. This study evaluated the main effect of maternal environmental tobacco smoke (ETS), and its interaction with social-demographics and environmental factors on CHDs in China. A population-based, matched case-control study of 9452 live-born infants and stillborn fetuses was conducted using the Guangdong Registry of Congenital Heart Disease data (2004-2014)...
November 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29160913/bigger-testes-increase-paternity-in-a-simultaneous-hermaphrodite-independently-of-the-sperm-competition-level
#15
Nikolas Vellnow, Lucas Marie-Orleach, Kira S Zadesenets, Lukas Schärer
All sexually reproducing organisms face the evolutionary optimization problem of how much of their limited resources they should invest into male versus female reproduction, i.e., the problem of sex allocation (Charnov, 1982). Consider, for example, producing the optimal offspring sex ratio in gonochoristic (separate-sexed) animals. Since during sexual reproduction both parents contribute the same amount of nuclear genetic material to the zygote, the total fitness of males and females-on the population level-has to be equal (Düsing, 1884; Fisher, 1930; Houston & McNamara, 2006; Queller, 2006)...
November 21, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/29153057/sex-dependent-influence-of-developmental-toxicant-exposure-on-group-b-streptococcus-mediated-preterm-birth-in-a-murine-model
#16
Tianbing Ding, Lauren A Lambert, David M Aronoff, Kevin G Osteen, Kaylon L Bruner-Tran
Infectious agents are a significant risk factor for preterm birth (PTB); however, the simple presence of bacteria is not sufficient to induce PTB in most women. Human and animal data suggest that environmental toxicant exposures may act in concert with other risk factors to promote PTB. Supporting this "second hit" hypothesis, we previously demonstrated exposure of fetal mice (F1 animals) to the environmental endocrine disruptor 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) leads to an increased risk of spontaneous and infection-mediated PTB in adult animals...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29135378/same-sex-parenting-identification-of-social-representations-in-a-sample-of-portuguese-professionals
#17
Paula Xavier, Isabel Alberto, Francisco Mendes
Although international scientific research and the position of professional associations reiterate that the parents' sexual orientation is not a criterion of parenting quality, the social recognition of same-sex parenting remains difficult in Portugal. Given the importance of forensic issues in this field, this study aims to identify the representations of psychologists, social workers, lawyers/attorneys, and judges regarding same-sex parenting. The study involves five homogeneous focus groups with a total of 19 professionals...
November 14, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/29127571/the-promise-and-perils-of-population-research-on-same-sex-families
#18
Corinne Reczek, Russell Spiker, Hui Liu, Robert Crosnoe
As a follow-up to our 2016 study, this article presents new findings examining the relationship between same-sex family structure and child health using the 2008-2015 National Health Interview Survey (NHIS). After discussing NIHS data problems, we examine the relationship between family structure and a broad range of child well-being outcomes, including school days lost, behavior, parent-rated health, emotional difficulties, and activity limitations. We find both similarities (school days lost, behavior, parent-rated health) and differences (emotional difficulties and activity limitations) across our two studies using different survey years, but our overall conclusions are robust...
November 10, 2017: Demography
https://www.readbyqxmd.com/read/29119648/genetic-and-environmental-links-between-motor-activity-level-and-attention-problems-in-early-childhood
#19
Kimberly J Saudino, Manjie Wang, Megan Flom, Philip Asherson
Cross-lagged biometric models were used to examine genetic and environmental links between actigraph-assessed motor activity level (AL) and parent-rated attention problems (AP) in 314 same-sex twin pairs (MZ = 145, DZ = 169) at ages 2 and 3 years. At both ages, genetic correlations between AL and AP were moderate (ra2 = .35; ra3 = .39) indicating both overlap and specificity in genetic effects across the two domains. Within- and across-age phenotypic associations between AL and AP were entirely due to overlapping genetic influences...
November 8, 2017: Developmental Science
https://www.readbyqxmd.com/read/29092695/the-kids-are-ok-it-is-discrimination-not-same-sex-parents-that-harms-children
#20
Ken W Knight, Sarah Em Stephenson, Sue West, Martin B Delatycki, Cheryl A Jones, Melissa H Little, George C Patton, Susan M Sawyer, S Rachel Skinner, Michelle M Telfer, Melissa Wake, Kathryn N North, Frank Oberklaid
No abstract text is available yet for this article.
November 6, 2017: Medical Journal of Australia
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