Results 21 to 30 of about 13,822 (168)

In Utero Diagnoses of Strikingly Similar Presentations of Complete Atrioventricular Septal Defects in a Pair of Dizygotic Twins Concordant for Trisomy 21

open access: yesCase Reports in Pediatrics, 2018
Trisomy 21, or Down syndrome (DS), is a genetic disorder affecting approximately 1 in 500–750 live births. The prevalence of DS has increased over the past two decades, correlating with a rise in the proportion of pregnancies complicated by advanced ...
Diamond Ling, Jonathan G Dayan
doaj   +1 more source

Twinning rate trend in a population sample from the city of São Paulo, Brazil

open access: yesGenetics and Molecular Biology, 2003
A retrospective study was carried out on a sample consisting of 89,491 deliveries occurred from 1979 through 1998, in the city of São Paulo, SP, Brazil. These deliveries included 935 twin and 26 triplet births. The mean incidence per 1,000 deliveries was
Gloria M.D.D. Colletto
doaj   +1 more source

Novel BEST1 mutation in autosomal recessive bestrophinopathy in Japanese siblings

open access: yesTaiwan Journal of Ophthalmology, 2021
PURPOSE: Autosomal recessive bestrophinopathy (ARB) is a disease that results from the mutations in the BEST1 gene. It is characterized by multifocal yellowish lipofuscin deposits, cystoid macular edema, and subretinal fluid.
Rika Yamada   +4 more
doaj   +1 more source

Dizygotic Atomic Platinum and Palladium on Carbon for High‐Performance Ethanol and Methanol Electro‐Oxidation

open access: yesAngewandte Chemie, EarlyView.
Single‐atom catalysts (SACs) have been explored to maximize Pt utilization, but they struggle to efficiently activate the C─H and O─H bonds in alcohols. Multi‐metallic dizygotic‐atom‐site catalysts (DASCs), which incorporate multiple metal atoms in dispersed active sites, offer a promising alternative by enhancing catalytic activity through metal ...
Zhiqi Zhang   +16 more
wiley   +2 more sources

Comparison of epidemiologic factors and eye manifestations of twin children with controls

open access: yesBMC 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

VALIDATION OF ZYGOSITY ASSESSMENT BY A SELF-REPORT QUESTIONNAIRE IN A SAMPLE OF ADULT SERBIAN TWINS

open access: yesPrimenjena Psihologija, 2019
Validation of a twin zygosity-estimating questionnaire, The Questionnaire of Twins’ Physical Resemblance, created by Oniszczenko et al. and used in European and Serbian twin studies, was carried out on a sample of 222 pairs (176 monozygotic, 46 dizygotic)
Petar Čolović   +2 more
doaj   +1 more source

Effect of Genetic and Environmental Factors on the Impaction of Lower Third Molars

open access: yesApplied 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

A genome wide linkage scan for dizygotic twinning in 525 families of mothers of dizygotic twins [PDF]

open access: yesHuman Reproduction, 2010
The tendency to conceive dizygotic (DZ) twins is a complex trait influenced by genetic and environmental factors. To search for new candidate loci for twinning, we conducted a genome-wide linkage scan in 525 families using microsatellite and single nucleotide polymorphism marker panels.Non-parametric linkage analyses, including 523 families containing ...
Painter, Jodie N.   +12 more
openaire   +4 more sources

HLA Haplotypes in Dizygotic Twin Pairs: Are Dizygotic Twins More Similar Than Sibs? [PDF]

open access: yesTwin 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   +4 more sources

Twins and endocrinology

open access: yesIndian Journal of Endocrinology and Metabolism, 2014
Twins are two independent babies delivered during the same pregnancy and are divided as monozygotic or dizygotic based on their origin. Dizygotic twins are similar to two siblings and have different genetic information.
K. V. S. Hari Kumar, K D Modi
doaj   +1 more source

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