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https://www.readbyqxmd.com/read/28087834/environmental-deflection-the-impact-of-toxicant-exposures-on-the-aging-epigenome
#1
Joseph Kochmanski, Luke Montrose, Jaclyn M Goodrich, Dana C Dolinoy
Epigenetic drift and age-related methylation have both been used in the literature to describe changes in DNA methylation that occurs with aging. However, ambiguity remains regarding the exact definition of both of these terms, and neither of these fields of study explicitly considers the impact of environmental factors on the aging epigenome. Recent twin studies have demonstrated longitudinal, pair-specific discordance in DNA methylation patterns, suggesting an effect of the environment on age-related methylation and/or epigenetic drift...
January 13, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28086762/prevalence-and-risk-factors-of-congenital-heart-defects-among-live-births-a-population-based-cross-sectional-survey-in-shaanxi-province-northwestern-china
#2
Leilei Pei, Yijun Kang, Yaling Zhao, Hong Yan
BACKGROUND: Nearly half of the population of Northwest China live in Shaanxi province, but population-based data on the epidemiologic characteristics of congenital heart defects (CHD) in this population is limited. The study aimed to investigate the prevalence and epidemiologic characteristics of the CHD among infants born between 2010 and 2013 in Shaanxi province. METHODS: Infants born between 2010 and 2013 in Shaanxi province were surveyed using a stratified multi-stage sampling method...
January 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28072479/reference-values-for-sonographically-estimated-fetal-weight-in-twin-gestations-stratified-by-chorionicity-a-single-center-study
#3
Rinat Gabbay-Benziv, Sarah Crimmins, Stephen A Contag
OBJECTIVES: To determine reference values for sonography-based estimated fetal weight (EFW) in twin gestations in one single tertiary medical center in the United States. METHODS: A retrospective longitudinal analysis of EFW evaluations of fetuses of twin gestations between November 2006 and June 2016. Fetuses with major congenital anomalies or chromosomal abnormalities were excluded. Estimated fetal weight was calculated using the Hadlock 1985 formula. Linear mixed models were used to allow for multiple but inconsistent observations among individuals, and to account for intertwin differences as well as for gender...
January 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28070853/is-the-association-between-education-and-fertility-postponement-causal-the-role-of-family-background-factors
#4
Felix C Tropf, Jornt J Mandemakers
A large body of literature has demonstrated a positive relationship between education and age at first birth. However, this relationship may be partly spurious because of family background factors that cannot be controlled for in most research designs. We investigate the extent to which education is causally related to later age at first birth in a large sample of female twins from the United Kingdom (N = 2,752). We present novel estimates using within-identical twin and biometric models. Our findings show that one year of additional schooling is associated with about one-half year later age at first birth in ordinary least squares (OLS) models...
January 9, 2017: Demography
https://www.readbyqxmd.com/read/28067007/vaginal-progesterone-decreases-preterm-birth-and-neonatal-morbidity-and-mortality-in-women-with-a-twin-gestation-and-a-short-cervix-an-updated-meta-analysis-of-individual-patient-data
#5
REVIEW
Roberto Romero, Agustin Conde-Agudelo, Waleed El-Refaie, Line Rode, Maria L Brizot, Elcin Cetingoz, Vicente Serra, Eduardo da Fonseca, Mohamed S Abdelhafez, Ann Tabor, Alfredo Perales, Sonia S Hassan, Kypros H Nicolaides
OBJECTIVE: To assess the efficacy of vaginal progesterone for the prevention of preterm birth and neonatal morbidity and mortality in asymptomatic women with a twin gestation and a sonographic short cervix (cervical length ≤25 mm) in the midtrimester. METHODS: Updated systematic review and meta-analysis of individual patient data from randomized controlled trials comparing vaginal progesterone with placebo/no treatment in women with a twin gestation and a midtrimester sonographic cervical length ≤25 mm...
January 9, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28063805/effect-of-prenatal-counseling-on-breastfeeding-rates-in-mothers-of%C3%A2-twins
#6
Fernanda Cristina Ferreira Mikami, Maria de Lourdes Brizot, Terezinha Hideco Tase, Elizabeth Saccuman, Rossana Pulcineli Vieira Francisco, Marcelo Zugaib
OBJECTIVE: To investigate the effect of antenatal breastfeeding counseling on the breastfeeding rates for women who give birth to twins. DESIGN: Prospective randomized trial. SETTING: Multiple Pregnancy Unit, Obstetrics Department, University of São Paulo, Brazil. PARTICIPANTS: A total of 171 mothers of twins and their 342 infants. METHODS: The participants were randomized into the prenatal counseling group (PCG) or control group (CG)...
January 5, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28059698/uk-national-data-guardian-for-health-and-care-s-review-of-data-security-trust-better-security-and-opt-outs
#7
Tom Chan, Concetta Tania Di Iorio, Simon De Lusignan, Daniel Lo Russo, Craig Kuziemsky, Siaw-Teng Liaw
Sharing health and social care data is essential to the delivery of high quality health care as well as disease surveillance, public health, and for conducting research. However, these societal benefits may be constrained by privacy and data protection principles. Hence, societies are striving to find a balance between the two competing public interests. Whilst the spread of IT advancements in recent decades has increased the demand for an increased privacy and data protection in many ways health is a special case...
December 20, 2016: Journal of Innovation in Health Informatics
https://www.readbyqxmd.com/read/28043892/genetic-influences-on-functional-connectivity-associated-with-feedback-processing-and-prediction-error-phase-coupling-of-theta-band-oscillations-in-twins
#8
Şükrü Barış Demiral, Simon Golosheykin, Andrey P Anokhin
Detection and evaluation of the mismatch between the intended and actually obtained result of an action (reward prediction error) is an integral component of adaptive self-regulation of behavior. Extensive human and animal research has shown that evaluation of action outcome is supported by a distributed network of brain regions in which the anterior cingulate cortex (ACC) plays a central role, and the integration of distant brain regions into a unified feedback-processing network is enabled by long-range phase synchronization of cortical oscillations in the theta band...
December 31, 2016: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28034837/research-progress-of-regulatory-mechanism-of-dna-methylation-in-complex-traits-using-monozygotic-twins
#9
Liu Shuli, Zhang Shengli, Yu Ying
Coming from a single zygote, monozygotic (MZ) twins share nearly all of their genetic materials and are almost strikingly similar in appearance. Yet they are often discordant for important phenotypes including complex diseases. The study of discordant MZ twins allows us to understand the role of epigenetics in complex traits by controlling many potential confounders, such as genetic factors, maternal effects, age and sex. As we know, DNA methylation is the most stable epigenetic modification. In human, many causal genes, regulating disease status by DNA methylation modification in imprinting disorders, psychological disorders, autoimmune diseases and cancers, have been discovered, which provides a foundation for studying epigenetic regulation of diseases and application of epigenetic drugs...
December 20, 2016: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28034356/improving-cancer-care-for-children-in-the-developing-world-challenges-and-strategies
#10
Zakiya Al Lamki
Cancer is a global health problem particularly in developing countries where the burden of cancer is ever increasing and claiming the lives of about 100,000 children under the age of 15 years every year. Majority of these occur in the Low and Middle Income Countries (LMICs) where 90% of world children live. Contributing factors to this trend is the reduction of communicable diseases and emergence of new infections, improvement of nutrition and socio-economic conditions, industrialization and urbanization. However, due to its complexity, childhood cancer is given the least priority by the governments' funding...
December 30, 2016: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28033658/multiple-exposures-to-environmental-pollutants-and-oxidative-stress-is-there-a-sex-specific-risk-of-developmental-complications-for-fetuses
#11
REVIEW
Kaïs H Al-Gubory
Medically assisted procreation significantly contributes to an increase in twin pregnancies. One of the major factors contributing to more twin births is the use of fertility treatments. Twin pregnancy is not without a risk for fetal organ development and the health outcome of new-borns, children, and adults. Multiple pregnancies are associated with an increased risk of developmental complications, such as perinatal mortality, premature births, and low birth weight. Oxidative stress is involved in pregnancy disorders such as abortion, intrauterine growth retardation, and prenatal mortality...
December 2016: Birth Defects Research. Part C, Embryo Today: Reviews
https://www.readbyqxmd.com/read/28009308/-twin-to-twin-transfusion-syndrome-the-possibility-of-latent-flow-case-report
#12
E Kamyshanskiy, O Kostyleva, S Musabekova, M Tussupbekova, I Kopobaeva
The early diagnosis of the Twin-To-Twin transfusion syndrome (TTTS) carries benefits of the better survivor for the fetus-donor; but at the same time there are obvious practical impediments to diagnose the condition earlier in the course of a pregnancy. That's why this particular problem in practical medicine requires in depth investigation to clarify casual factors, and specify tactical approach to the prospective patients which in turn will lead to prevention of the fetal death and damage and improvement of fetal survivor in any form of TTTS...
November 2016: Georgian Medical News
https://www.readbyqxmd.com/read/28008287/searching-for-sex-and-gender-sensitive-tuberculosis-research-in-public-health-finding-a-needle-in-a-haystack
#13
Bilkis Vissandjee, Assia Mourid, Christina A Greenaway, Wendy E Short, Jodi A Proctor
Despite broadening consideration of sex- and gender-based issues in health research, when seeking information on how sex and gender contribute to disease contexts for specific health or public health topics, a lack of consistent or systematic use of terminology in health literature means that it remains difficult to identify research with a sex or gender focus. These inconsistencies are driven, in part, by the complexity and terminological inflexibility of the indexing systems for gender- and sex-related terms in public health databases...
2016: International Journal of Women's Health
https://www.readbyqxmd.com/read/28006041/efficacy-and-safety-of-ciprofloxacin-plus-fluocinolone-in-otitis-media-with-tympanostomy-tubes-in-pediatric-patients-a-randomized-clinical-trial
#14
Zorik Spektor, Felix Pumarola, Khaleed Ismail, Brent Lanier, Iftikhar Hussain, John Ansley, Henry F Butehorn, Kenneth Esterhuizen, John Byers, Franklin Douglis, Bryan Lansford, F Javier Hernández
Importance: Acute otitis media with tympanostomy tubes (AOMT) in children commonly presents with otorrhea and negatively affects their daily activities. Objective: To evaluate the efficacy and safety of topical ciprofloxacin, 0.3%, plus fluocinolone acetonide, 0.025%, otic solution relative to ciprofloxacin, 0.3%, otic solution alone and fluocinolone acetonide, 0.025%, otic solution alone in the treatment of AOMT in children. Design, Setting, and Participants: Two twin multicenter, randomized, double-blind clinical trials with identical designs were conducted from June 24, 2011, through June 23, 2014, at ear, nose, and throat pediatric practices, general practices, hospitals, and clinical research centers...
December 22, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28004238/development-and-validation-of-a-questionnaire-to-measure-moral-distress-in-community-pharmacists
#15
Jayne L Astbury, Cathal T Gallagher
Background Pharmacists work within a highly-regulated occupational sphere, and are bound by strict legal frameworks and codes of professional conduct. This regulatory environment creates the potential for moral distress to occur due to the limitations it places on acting in congruence with moral judgements. Very little research regarding this phenomenon has been undertaken in pharmacy: thus, prominent research gaps have arisen for the development of a robust tool to measure and quantify moral distress experienced in the profession...
December 22, 2016: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28000395/addressing-regional-disparities-in-pediatric-oncology-results-of-a-collaborative-initiative-across-the-mexican-north-american-border
#16
Paula Aristizabal, Spencer Fuller, Rebeca Rivera-Gomez, Mario Ornelas, Laura Nuno, Carlos Rodriguez-Galindo, Raul Ribeiro, William Roberts
BACKGROUND: Cancer is emerging as a major cause of childhood mortality in low- and middle-income countries. In Mexico, cancer is the number one cause of death in children aged 5-14. Until recently, many children with cancer from Baja California, Mexico, went untreated. We reasoned that an initiative inspired by the St. Jude Children's Research Hospital (SJCRH) "twinning" model could successfully be applied to the San Diego-Tijuana border region. In 2008, a twinning project was initiated by Rady Children's Hospital, SJCRH, and the General Hospital Tijuana (GHT)...
December 21, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27999387/genetic-pathways-to-insomnia
#17
REVIEW
Mackenzie J Lind, Philip R Gehrman
This review summarizes current research on the genetics of insomnia, as genetic contributions are thought to be important for insomnia etiology. We begin by providing an overview of genetic methods (both quantitative and measured gene), followed by a discussion of the insomnia genetics literature with regard to each of the following common methodologies: twin and family studies, candidate gene studies, and genome-wide association studies (GWAS). Next, we summarize the most recent gene identification efforts (primarily GWAS results) and propose several potential mechanisms through which identified genes may contribute to the disorder...
December 20, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27996005/twinned-growth-behaviour-of-two-dimensional-materials
#18
Tao Zhang, Bei Jiang, Zhen Xu, Rafael G Mendes, Yao Xiao, Linfeng Chen, Liwen Fang, Thomas Gemming, Shengli Chen, Mark H Rümmeli, Lei Fu
Twinned growth behaviour in the rapidly emerging area of two-dimensional nanomaterials still remains unexplored although it could be exploited to fabricate heterostructure and superlattice materials. Here we demonstrate how one can utilize the twinned growth relationship between two two-dimensional materials to construct vertically stacked heterostructures. As a demonstration, we achieve 100% overlap of the two transition metal dichalcogenide layers constituting a ReS2/WS2 vertical heterostructure. Moreover, the crystal size of the stacked structure is an order of magnitude larger than previous reports...
December 20, 2016: Nature Communications
https://www.readbyqxmd.com/read/27989723/does-educational-attainment-increase-the-risk-of-low-back-pain-when-genetics-is-considered-a-population-based-study-of-spanish-twins
#19
J R Zadro, D Shirley, M B Pinheiro, J F Sánchez-Romera, F Pérez-Riquelme, J R Ordoñana, P H Ferreira
BACKGROUND: There is limited research investigating educational attainment as a risk factor for low back pain (LBP), with the influence of gender commonly being neglected. Furthermore, genetics and early shared environment explain a substantial proportion of LBP cases and need to be controlled for when investigating risk factors for LBP. PURPOSE: To investigate whether educational attainment affects the prevalence and risk of LBP differently in males and females, while controlling for the influence of genetics and early shared environment...
October 27, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27968834/methylation-loci-associated-with-body-mass-index-waist-circumference-and-waist-to-hip-ratio-in-chinese-adults-an-epigenome-wide-analysis
#20
Biqi Wang, Wenjing Gao, Jun Li, Canqing Yu, Weihua Cao, Jun Lv, Zengchang Pang, Liming Cong, Hua Wang, Xianping Wu, Liming Liang, Tangchun Wu, Liming Li
BACKGROUND: DNA methylation has been implicated in the pathology of obesity, but little is known about such epigenetic variants in Chinese people. We conducted an epigenome-wide analysis of methylation at CpG sites in relation to body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) among Chinese adult populations. METHODS: 469 twins from the Chinese National Twin Registry were the discovery cohort. After quality control, methylation levels in whole blood leukocyte DNA were tested for association with BMI, WC, and WHR using mixed linear regressions, adjusting for demographics, lifestyle, and family structure...
October 2016: Lancet
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