Results 21 to 30 of about 13,822 (168)
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
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Twinning rate trend in a population sample from the city of São Paulo, Brazil
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
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Novel BEST1 mutation in autosomal recessive bestrophinopathy in Japanese siblings
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
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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
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
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VALIDATION OF ZYGOSITY ASSESSMENT BY A SELF-REPORT QUESTIONNAIRE IN A SAMPLE OF ADULT SERBIAN TWINS
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
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Effect of Genetic and Environmental Factors on the Impaction of Lower Third Molars
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
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A genome wide linkage scan for dizygotic twinning in 525 families of mothers of dizygotic twins [PDF]
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
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HLA Haplotypes in Dizygotic Twin Pairs: Are Dizygotic Twins More Similar Than Sibs? [PDF]
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
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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
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