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https://www.readbyqxmd.com/read/28533738/genetics-of-tinnitus-still-in-its-infancy
#1
REVIEW
Barbara Vona, Indrajit Nanda, Wafaa Shehata-Dieler, Thomas Haaf
Tinnitus is the perception of a phantom sound that affects between 10 and 15% of the general population. Despite this considerable prevalence, treatments for tinnitus are presently lacking. Tinnitus exhibits a diverse array of recognized risk factors and extreme clinical heterogeneity. Furthermore, it can involve an unknown number of auditory and non-auditory networks and molecular pathways. This complex combination has hampered advancements in the field. The identification of specific genetic factors has been at the forefront of several research investigations in the past decade...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28524230/the-etiology-of-autistic-traits-in-preschoolers-a-population-based-twin-study
#2
Eveline L de Zeeuw, Catharina E M van Beijsterveldt, Rosa A Hoekstra, Meike Bartels, Dorret I Boomsma
BACKGROUND: Autism Spectrum Disorders (ASD) are highly heritable, but the exact etiological mechanisms underlying the condition are still unclear. METHODS: Using a multiple rater twin design in a large sample of general population preschool twins, this study aimed to (a) estimate the contribution of genetic and environmental factors to autistic traits, controlling for the possible effects of rater bias, (b) to explore possible sex differences in etiology and (c) to investigate the discordance in autistic traits in monozygotic and same-sex dizygotic twin pairs...
May 19, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28523545/anxiety-and-epigenetics
#3
Andrew A Bartlett, Rumani Singh, Richard G Hunter
Anxiety disorders are highly prevalent psychiatric disorders often comorbid with depression and substance abuse. Twin studies have shown that anxiety disorders are moderately heritable. Yet, genome-wide association studies (GWASs) have failed to identify gene(s) significantly associated with diagnosis suggesting a strong role for environmental factors and the epigenome. A number of anxiety disorder subtypes are considered "stress related." A large focus of research has been on the epigenetic and anxiety-like behavioral consequences of stress...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28506778/genetic-factors-explain-the-association-between-pain-catastrophizing-and-chronic-widespread-pain
#4
Soshiro Ogata, Frances Williams, Andrea Burri
This study aimed to clarify whether there are shared genetic and/or environmental factors explaining the strong link between pain catastrophizing (PC) and chronic widespread pain (CWP). Data were available for N = 1,109 female twins from TwinsUK. Information on self-reported CWP and PC was subject to variance component twin analysis. Heritabilities were 40% for PC and 77% for CWP. The genetic correlation between PC and CWP was rG = 0.40%, while no evidence of an environmental correlation could be detected (rE = 0...
May 12, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28500880/motor-functioning-differentially-predicts-mortality-in-men-and-women
#5
Marie Ernsth Bravell, Deborah Finkel, Anna Dahl Aslan, Chandra A Reynolds, Jenny Hallgren, Nancy L Pedersen
INTRODUCTION: Research indicates gender differences in functional performance at advanced ages, but little is known about their impact on longevity for men and women. OBJECTIVE: To derive a set of motor function factors from a battery of functional performance measures and examine their associations with mortality, incorporating possible gender interactions. METHOD: Analyses were performed on the longitudinal Swedish Adoption/Twin Study of Aging (SATSA) including twenty-four assessments of motor function up to six times over a 19-year period...
May 2, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28498595/etiology-in-psychiatry-embracing-the-reality-of-poly-gene-environmental-causation-of-mental-illness
#6
Rudolf Uher, Alyson Zwicker
Intriguing findings on genetic and environmental causation suggest a need to reframe the etiology of mental disorders. Molecular genetics shows that thousands of common and rare genetic variants contribute to mental illness. Epidemiological studies have identified dozens of environmental exposures that are associated with psychopathology. The effect of environment is likely conditional on genetic factors, resulting in gene-environment interactions. The impact of environmental factors also depends on previous exposures, resulting in environment-environment interactions...
June 2017: World Psychiatry: Official Journal of the World Psychiatric Association (WPA)
https://www.readbyqxmd.com/read/28481615/genetic-and-environmental-origins-of-gambling-behaviors-from-ages-18-to-25-a-longitudinal-twin-family-study
#7
Serena M King, Margaret Keyes, Ken C Winters, Matt McGue, William G Iacono
Gambling behaviors tend to increase in prevalence from late adolescence to young adulthood, and the underlying genetic and environmental influences during this period remain largely understudied. We examined the genetic and environmental influences on gambling behaviors contributing to stability and change from ages 18 to 25 in a longitudinal, behavioral genetic mixed-sex twin study design. Participants were enrolled in the Minnesota Twin Family Study. A range of gambling behaviors (maximum frequency, average frequency, money lost, and gambling problems) were assessed at ages 18 and 25...
May 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28478841/somatic-mutation-a-cause-of-biliary-atresia-a-hypothesis
#8
Alexandre Fabre, Céline Roman, Bertrand Roquelaure
Despite many years of research, the causes of biliary atresia still remain elusive. Infection, immune disorder, toxins or maternal microchimerism have been cited as potential triggers of biliary atresia. This is a rare disease with a stable incidence over the years although with sizeable ethnic variations. This stability suggests that environmental factors have in fact only a slight influence. During the search for etiologies, twin studies have often helped disentangle the genetic from the environmental. For this condition, twin studies have mainly demonstrated a lack of concordance between twins (either monozygotic or dizygotic), ruling out Mendelian, infectious or toxic causes...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28478783/genetic-and-other-risk-factors-for-suicidal-ideation-and-the-relationship-with-depression
#9
R Dutta, H A Ball, S H Siribaddana, A Sumathipala, S Samaraweera, P McGuffin, M Hotopf
BACKGROUND: There is a genetic contribution to the risk of suicide, but sparse prior research on the genetics of suicidal ideation. METHODS: Active and passive suicidal ideation were assessed in a Sri Lankan population-based twin registry (n = 3906 twins) and a matched non-twin sample (n = 2016). Logistic regression models were used to examine associations with socio-demographic factors, environmental exposures and psychiatric symptoms. The heritability of suicidal ideation was assessed using structural equation modelling...
May 8, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28471214/genetic-and-environmental-sources-of-individual-differences-in-views-on-aging
#10
Anna E Kornadt, Christian Kandler
Views on aging are central psychosocial variables in the aging process, but knowledge about their determinants is still fragmental. Thus, the authors investigated the degree to which genetic and environmental factors contribute to individual differences in various domains of views on aging (wisdom, work, fitness, and family), and whether these variance components vary across ages. They analyzed data from 350 monozygotic and 322 dizygotic twin pairs from the Midlife Development in the U.S. (MIDUS) study, aged 25-74...
May 4, 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28455084/recipient-umbilical-artery-elongation-redundancy-in-twin-twin-transfusion-syndrome
#11
Roopali Donepudi, Lovepreet K Mann, Christoph Wohlmuth, Anthony Johnson, Michael W Bebbington, Kenneth J Moise, David S Boudreaux, Helena Gardiner, Ramesha Papanna
BACKGROUND: Chronic hypertension in adults causes arterial lengthening in major arteries, but the effects of early fetal hypertension on the twin-twin transfusion syndrome (TTTS) recipient's vascular architecture remains unknown. OBJECTIVES: We hypothesize that arterial cord redundancy is related to recipient hypertension and subsequent heart failure. Our objectives were: 1) to establish a 3D color Doppler ultrasound method of measuring umbilical arterial (UA) length relative to its corresponding venous segment in the Umbilical cord using AV-angle, 2) to compare recipient AV-angle to gestational age-matched controls, and 3) to test the association of AV-angle with recipient heart failure...
April 25, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28454700/what-is-the-impact-of-placental-tissue-damage-after-laser-surgery-for-twin-twin-transfusion-syndrome-a-secondary-analysis-of-the-solomon-trial
#12
Joost Akkermans, Saskia M de Vries, Depeng Zhao, Suzanne H P Peeters, Frans J Klumper, Johanna M Middeldorp, Dick Oepkes, Femke Slaghekke, Enrico Lopriore
BACKGROUND: The introduction of the Solomon technique for the treatment of twin-twin transfusion syndrome (TTTS) increased placental exposure to laser energy. This study aims to identify the impact of power and energy used in laser treatment on placental tissue and pregnancy outcome. METHODS: Pictures of all dye-injected placentas since the start of the Solomon trial were analyzed. Placental damage was scored using a grading system including visual scar depth and affected proportion of the vascular equator...
April 2017: Placenta
https://www.readbyqxmd.com/read/28451940/unstructured-socializing-with-peers-and-delinquent-behavior-a-genetically-informed-analysis
#13
Ryan C Meldrum, J C Barnes
A large body of research finds that unstructured socializing with peers is positively associated with delinquency during adolescence. Yet, existing research has not ruled out the potential for confounding due to genetic factors and factors that can be traced to environments shared between siblings. To fill this void, the current study examines whether the association between unstructured socializing with peers and delinquent behavior remains when accounting for genetic factors, shared environmental influences, and a variety of non-shared environmental covariates...
April 27, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28436889/design-and-implementation-of-a-tactile-stimulation-device-to-increase-auditory-discrimination
#14
Shahrzad Abbasi Baharanchi, Majid MohammadBeigi, Fatemeh Abnavi, Samira Tavakol
Reading is a complex process that requires various simultaneous brain processes. One of the most common types of reading disorders is developmental dyslexia, and one of the objectives of speech therapy sessions for children with developmental dyslexia is to increase their auditory discrimination. One of the most commonly used Auditory Discrimination Tests (ADTs) is Wepman's Auditory Discrimination Test (WADT). It includes minimal pair words categorized by characteristics of vowels and consonants. The goal of this research is to design and implement a tactile stimulation device based on Wepman's test to increase auditory discrimination in children with developmental dyslexia in therapy sessions, so that while playing each word for the children, vibrational cues are presented to their left palm and fingers...
April 24, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28434752/effects-of-intrauterine-infusion-of-escherichia-coli-lipopolysaccharide-on-uterine-health-resolution-of-purulent-vaginal-discharge-and-reproductive-performance-of-lactating-dairy-cows
#15
João G N Moraes, Paula R B Silva, Luís G D Mendonça, Alexandre A Scanavez, Joseane C C Silva, Ricardo C Chebel
The objectives of the current experiment were to evaluate the effects of intrauterine infusion of Escherichia coli lipopolysaccharide (LPS) in cows diagnosed with purulent vaginal discharge (PVD) on intrauterine cell population, resolution of PVD, uterine health, and reproductive performance. Jersey cows (n = 3,084) were examined using the Metricheck device to diagnose PVD at 35 ± 6 d postpartum. Purulent vaginal discharge was defined as the presence of purulent (≥50% pus) discharge detectable in the vagina...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28430088/informatics-for-health-2017-advancing-both-science-and-practice
#16
Philip J Scott, Ronald Cornet, Colin McCowan, Niels Peek, Paolo Fraccaro, Nophar Geifman, Wouter T Gude, William Hulme, Glen P Martin, Richard Williams
INTRODUCTION: The Informatics for Health congress, 24-26 April 2017, in Manchester, UK, brought together the Medical Informatics Europe (MIE) conference and the Farr Institute International Conference. This special issue of the Journal of Innovation in Health Informatics contains 113 presentation abstracts and 149 poster abstracts from the congress. DISCUSSION: The twin programmes of "Big Data" and "Digital Health" are not always joined up by coherent policy and investment priorities...
April 21, 2017: Journal of Innovation in Health Informatics
https://www.readbyqxmd.com/read/28426696/heritability-of-brain-volume-on-mri-in-middle-to-advanced-age-a-twin-study-of-japanese-adults
#17
Matthew W Lukies, Yoshiyuki Watanabe, Hisashi Tanaka, Hiroto Takahashi, Soshiro Ogata, Kayoko Omura, Shiro Yorifuji, Noriyuki Tomiyama
Brain atrophy is part of the aging process and accelerated by neurodegenerative diseases, so an understanding of the background heritability of brain volume is essential. The purpose of this study was to determine the heritability of brain volume in middle to advanced age East Asian adults, an age group less studied and an ethnicity not previously studied. 3T magnetic resonance images were obtained and volumetric analyses conducted for a total of 74 individuals, 20 monozygotic twin pairs (mean age 61y min 41y max 75y) and 17 dizygotic twin pairs (mean age 64y min 41y max 85y)...
2017: PloS One
https://www.readbyqxmd.com/read/28422613/the-impact-of-prospective-telemedicine-implementation-in-the-management-of-childhood-acute-lymphoblastic-leukemia-in-recife-brazil
#18
Francisco Pedrosa, Faisal Shaikh, Gaston Rivera, Raul Ribeiro, Ibrahim Qaddoumi
BACKGROUND: A gap in childhood cancer outcomes remains between developed and developing countries. Persistence of this gap may be caused by financial, social, or educational disparities. Twinning and distance learning initiatives may improve such disparities. Integrating telemedicine into pediatric oncology twinning programs enhances education and facilitates patient-centered capacity building. MATERIALS AND METHODS: We performed an analysis of Web-based meetings held from August 2005 through July 2009 between the International Outreach Program at St...
April 19, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28403975/-fetoscopic-laser-coagulation-in-200%C3%A2-consecutive-monochorionic-pregnancies-with-twin-twin-transfusion-syndrome
#19
L Lecointre, N Sananès, A S Weingertner, A Gaudineau, C Akladios, V Cavillon, B Langer, R Favre
OBJECTIVES: To report preoperative data, surgical characteristics, complications and perinatal outcome of twin-twin transfusion syndrome (TTTS) managed with laser ablation surgery, to analyze predictors of neonatal survival and to compare the 100 most recent cases with the older 100. MATERIALS AND METHODS: Observational cohort moncentric study of 200 cases of TTTS consecutively treated with fetoscopic laser coagulation between January 2004 and December 2014...
February 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28403844/health-and-legal-literacy-for-migrants-twinned-strands-woven-in-the-cloth-of-social-justice-and-the-human-right-to-health-care
#20
Bilkis Vissandjée, Wendy E Short, Karine Bates
BACKGROUND: Based on an analysis of published literature, this paper provides an over-view of the challenges associated with delivering on the right to access quality health care for international migrants to industrialized countries, and asks which group of professionals is best equipped to provide services that increase health and legal literacy. Both rights and challenges are approached from a social justice perspective with the aim of identifying opportunities to promote greater health equity...
April 13, 2017: BMC International Health and Human Rights
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