Results 11 to 20 of about 23,828 (193)

Intra-Monozygotic Twin Pair Discordance and Longitudinal Variation of Whole-Genome Scale DNA Methylation in Adults. [PDF]

PLoS ONE, 2015
Monozygotic twins share identical genomic DNA and are indistinguishable using conventional genetic markers. Increasing evidence indicates that monozygotic twins are epigenetically distinct, suggesting that a comparison between DNA methylation patterns ...
Na Zhang, Shumin Zhao, Su-Hua Zhang, Jinzhong Chen, Daru Lu, Min Shen, Chengtao Li   +6 more
doaj   +1 more source

Genome-Wide DNA Methylation Analysis Reveals Epigenetic Pattern of SH2B1 in Chinese Monozygotic Twins Discordant for Autism Spectrum Disorder

Frontiers in Neuroscience, 2019
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder. Aberrant DNA methylation has been observed in ASD but the mechanisms remain largely unknown.
Shuang Liang, Zhenzhi Li, Yihan Wang, Xiaodan Li, Xiaolei Yang, Xiaolei Zhan, Yan Huang, Zhaomin Gao, Min Zhang, Caihong Sun, Yan Zhang, Lijie Wu   +11 more
doaj   +1 more source

Is that me or my twin? Lack of self-face recognition advantage in identical twins. [PDF]

PLoS ONE, 2015
Despite the increasing interest in twin studies and the stunning amount of research on face recognition, the ability of adult identical twins to discriminate their own faces from those of their co-twins has been scarcely investigated.
Matteo Martini, Ilaria Bufalari, Maria Antonietta Stazi, Salvatore Maria Aglioti   +3 more
doaj   +1 more source

Transcriptome Profiling Reveals Differential Expression of Circadian Behavior Genes in Peripheral Blood of Monozygotic Twins Discordant for Parkinson’s Disease

Cells, 2022
Parkinson’s disease (PD) is one of the most common neurodegenerative diseases. Investigating individuals with the most identical genetic background is optimal for minimizing the genetic contribution to gene expression.
Ekaterina I. Semenova, Ivan N. Vlasov, Suzanna A. Partevian, Anna V. Rosinskaya, Ivan N. Rybolovlev, Petr A. Slominsky, Maria I. Shadrina, Anelya Kh. Alieva   +7 more
doaj   +1 more source

Monozygotic Heterocaryotic Twinning [PDF]

Acta geneticae medicae et gemellologiae, 1974
Since the first publication in 1961, cases of monozygotic heterocaryotic twinning have been repeatedly found and a total of 14 observations can now be analysed. The mechanism involved in this type of twinning is yet uncertain and eventually is not identical in each case, the main uncertainty being to decide whether the chromosomal error affecting one ...
J. Lejeune, A. Aurias
openaire   +4 more sources

Epigenetic supersimilarity of monozygotic twin pairs

Genome Biology, 2018
Background Monozygotic twins have long been studied to estimate heritability and explore epigenetic influences on phenotypic variation. The phenotypic and epigenetic similarities of monozygotic twins have been assumed to be largely due to their genetic ...
Timothy E. Van Baak, Cristian Coarfa, Pierre-Antoine Dugué, Giovanni Fiorito, Eleonora Laritsky, Maria S. Baker, Noah J. Kessler, Jianrong Dong, Jack D. Duryea, Matt J. Silver, Ayden Saffari, Andrew M. Prentice, Sophie E. Moore, Akram Ghantous, Michael N. Routledge, Yun Yun Gong, Zdenko Herceg, Paolo Vineis, Gianluca Severi, John L. Hopper, Melissa C. Southey, Graham G. Giles, Roger L. Milne, Robert A. Waterland   +23 more
doaj   +1 more source

Urticaria in Monozygotic and Dizygotic Twins [PDF]

Journal of Allergy, 2012
Aim. To identify risk factors for urticaria, to determine the relative proportion of the susceptibility to urticaria that is due to genetic factors in an adult clinical twin sample, and to further determine whether the genetic susceptibility to urticaria overlaps with the genetic susceptibility to atopic diseases. Methods.
Thomsen, Simon Francis, van der Sluis, Sophie, Kyvik, Kirsten Ohm, Backer, Vibeke   +3 more
openaire   +5 more sources

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

Genetics 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

Discordant Keratoconus in Monozygotic Twins

Case Reports in Ophthalmology, 2022
We report a case of discordant keratoconus (KC) in a set of monozygotic twins with contrasting environmental risk factors. Twin one had bilateral, asymmetrical KC. He reported significant eye rubbing using his knuckles during his night-shift work as an emergency doctor. His usual sleeping position on the left side corresponded to the most affected eye.
Karen Bitton, Mathieu Dubois, Sarah Moran, Damien Gatinel   +3 more
openaire   +3 more sources

Monozygotic twins discordant for homologous Robertsonian translocation trisomy 21 of 46, XX, + 21, der (21;21) (q10; q10) in a twin-to-twin transfusion syndrome, case report

BMC Pregnancy and Childbirth, 2021
Background Monozygotic twins are nearly identical in genotype and phenotype because monozygotic twins arise from one fertilized oocyte. In all cases of discordant karyotype in monozygotic twins, trisomy 21 accounts for about one in 385,000.
Dingya Cao, Jimei Sun, Nan Li, Zhihua Li, Weiqiang Liu, Min Chen   +5 more
doaj   +1 more source