Results 31 to 40 of about 67,325 (296)

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

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

Twins and endocrinology

Indian 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

Monochorionic diamniotic twins of discordant external genitalia with 45,X/46,XY mosaicism

Molecular Genetics & Genomic Medicine, 2020
Background Monozygotic twins with 45,X/46,XY mosaicism, discordant for phenotypic sex, are extremely rare. Methods This report describes the clinical findings of a rare case of 45,X/46,XY mosaicism in monozygotic twins with different external genitalia ...
Ken Takahashi, Taisuke Sato, Miyuki Nishiyama, Aiko Sasaki, Kosuke Taniguchi, Ohsuke Migita, Seiji Wada, Kenichiro Hata, Haruhiko Sago   +8 more
doaj   +1 more source

Atomistic mechanisms of twin-twin interactions in Cu nanopillars [PDF]

Computational Materials Science 185 (2020) 109950, 2020
Twinning is an important mode of plastic deformation in metallic nanopillars. When twinning occurs on multiple systems, it is possible that twins belonging to different twin systems interact and forms a complex twin-twin junctions. Revealing the atomistic mechanisms of how twin-twin interactions lead to different twin junctions is crucial for our ...
arxiv   +1 more source

Spatial Coherence of Oriented White Matter Microstructure: Applications to White Matter Regions Associated with Genetic Similarity [PDF]

NeuroImage (2018), 2018
We present a method to discover differences between populations with respect to the spatial coherence of their oriented white matter microstructure in arbitrarily shaped white matter regions. This method is applied to diffusion MRI scans of a subset of the Human Connectome Project dataset: 57 pairs of monozygotic and 52 pairs of dizygotic twins.
arxiv   +1 more source

The host genotype affects the bacterial community in the human gastrointestinal tract [PDF]

, 2001
The gastrointestinal (GI) tract is one of the most complex ecosystems consisting of microbial and host cells. It is suggested that the host genotype, the physiology of the host and environmental factors affect the composition and function of the ...
Akkermans, A.D.L., Akkermans-van Vliet, W.M., Visser, J.A.G.M., de, Vos, W.M., de, Zoetendal, E.G.   +4 more
core   +2 more sources

Concordant Intestinal Atresia in Two Pairs of Monozygotic Twins

American Journal of Perinatology Reports, 2011
Intestinal atresia in both twins from the same pregnancy is very rare. Only seven pairs of twins have been described. The authors report on two cases of monozygotic twins with different types of intestinal atresia and clinical evolution.
Mario Giuffrè, Mariavalentina Catania, Giovanni Corsello   +2 more
doaj   +1 more source

Efficient Pairwise Neuroimage Analysis using the Soft Jaccard Index and 3D Keypoint Sets [PDF]

arXiv, 2021
We propose a novel pairwise distance measure between image keypoint sets, for the purpose of large-scale medical image indexing. Our measure generalizes the Jaccard index to account for soft set equivalence (SSE) between keypoint elements, via an adaptive kernel framework modeling uncertainty in keypoint appearance and geometry.
arxiv  

Effect of body composition methodology on heritability estimation of body fatness [PDF]

, 2012
Heritability estimates of human body fatness vary widely and the contribution of body composition methodology to this variability is unknown. The effect of body composition methodology on estimations of genetic and environmental contributions to body ...
Bouchard, Thomas J., Das, Sai Krupa, Dawson-Hughes, Bess, Elder, Sonya J., Fuss, Paul J., Greenberg, Andrew S., Heymsfield, Steven B., McCrory, Megan A., Neale, Michael C., Pittas, Anastassios G., Roberts, Susan B., Saltzman, Edward   +11 more
core   +1 more source