Results 31 to 40 of about 17,590 (219)
Comparison of epidemiologic factors and eye manifestations of twin children with controls
BMC Ophthalmology, 2023 Purpose The present study was aimed to compare the epidemiological and ocular findings of twin children in comparison with non- twin age matched individuals as their control.
Zhale Rajavi +6 more
doaj +1 more source
Effect of Genetic and Environmental Factors on the Impaction of Lower Third Molars
Applied Sciences, 2021 The aim of this retrospective study was to evaluate the impact of genetic and environmental factors on the impaction of lower third molars using a classical twin study by evaluation of the third molar eruption space and M3 angulation.
Giedrė Trakinienė +4 more
doaj +1 more source
HLA Haplotypes in Dizygotic Twin Pairs: Are Dizygotic Twins More Similar Than Sibs? [PDF]
Twin Research, 2002 AbstractIt has been suggested that dizygotic twin pairs share two HLA haplotypes more often than ordinary siblings and thus might be genetically more alike. We tested this hypothesis in dizygotic twin pairs from the Danish Twin Registry. A total of 114 (60 female and 54 male) same-sexed healthy twin pairs aged 18–45 years participated.
Titlestad, Ingrid Louise +3 more
openaire +2 more sources
Craniofacial Skeletal Dysplasia of Opposite-Sex Dizygotic Twins
, 2012 Craniofacial skeletal dysplasia can lead to different skeletal malocclusions. Both environmental factors and heredity contribute to the formation of malocclusions.
CHOU, SZU-TING;TSENG, YU-CHUAN;PAN, CHIN-YUN;CHANG, JENNY ZWEI-CHIENG;CHANG, HONG-PO;CHANG, HONG -PO +1 more
core +1 more source
Neonatal Abstinence Syndrome: Twins Case Series
Frontiers in Pediatrics, 2017 BackgroundUse or abuse of opioids and related drugs during pregnancy increases the risk of maternal and neonatal morbidities, including increased susceptibility to Neonatal Abstinence Syndrome (NAS).
Rajesh Pandey +2 more
doaj +1 more source
Global Spine Journal, 2015 Introduction The etiology of adolescent idiopathic scoliosis is still unclear and the true mode of inheritance has yet to be established. From the Danish twin cohort concordance rates in monozygotic twins have previously been reported to be 0.13 and in ...
Ane Simony +2 more
doaj +1 more source
Female Monozygotic Twins with Anorexia Nervosa
Neuropsychiatric Investigation, 2016 Anorexia nervosa (AN) is a serious eating disorder with higher morbidity and mortality rates. Higher concordance rates for monozygotic twins than for dizygotic twins have been shown in most twin studies.
Hasan Bozkurt +4 more
doaj +1 more source
Dementia risk in women higher in same‐sex than opposite‐sex twins
Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020 Introduction Hormones may be one possible mechanism underlying sex differences in dementia incidence. We examined whether presumed differential prenatal hormone milieu is related to dementia risk by comparing dementia rates in same‐ and opposite‐sex ...
Jing Luo +5 more
doaj +1 more source
Utilizing twins as controls for non-twin case-materials in genome wide association studies. [PDF]
PLoS ONE, 2013 Twin registries around the globe have collected DNA samples from large numbers of monozygotic and dizygotic twins. The twin sample collections are frequently used as controls in disease-specific studies together with non-twins.
Andrea Ganna +9 more
doaj +1 more source
Economics of Twin Pregnancies in Dairy Cattle
Animals, 2021 Twinning in Holstein dairy cows has increased over time concurrent with increased milk production. Twinning in dairy cattle is not desirable due to the negative effects on both cows that calve twins and calves born as twins that result in economic losses
Victor E. Cabrera, Paul M. Fricke
doaj +1 more source