Results 31 to 40 of about 33,638 (243)

Handedness in twins: meta-analyses

open access: yesBMC Psychology, 2022
Background In the general population, 10.6% of people favor their left hand over the right for motor tasks. Previous research suggests higher prevalence of atypical (left-, mixed-, or non-right-) handedness in (i) twins compared to singletons, and in (ii)
Lena Sophie Pfeifer   +5 more
doaj   +1 more source

No evidence of a higher 10 year period prevalence of diabetes among 77,885 twins compared with 215,264 singletons from the Danish birth cohorts 1910-1989 [PDF]

open access: yes, 2011
AIMS/HYPOTHESIS: Previous Danish twin studies have found a highly increased risk of precursors of type 2 diabetes as well as a higher prevalence of type 2 diabetes among twins compared with singletons.
Beck-Nielsen, Henning   +3 more
core   +1 more source

Confined Blood Chimerism in Monochorionic Dizygotic Twins Conceived Spontaneously

open access: yesAmerican Journal of Perinatology Reports, 2013
Traditionally, monochorionicity has been regarded as synonymous with monozygosity. However, several recent cases of monochorionic dizygotic twins have shown that monochorionic twins can be dizygous.
Takashi Kanda   +2 more
doaj   +1 more source

Protease inhibitor (Pi) locus, fertility and twinning [PDF]

open access: yes, 1992
In a sample of 160 Dutch twin pairs and their parents, we found that mothers of dizygotic twins had frequencies of the S and Z alleles at the protease inhibitor (Pi) locus that were 3 times higher than a control sample.
Bank, R.A.   +3 more
core   +1 more source

A Twin Study of Genetic Contributions to Hippocampal Morphology in Schizophrenia

open access: yesNeurobiology of Disease, 2002
Our goal was to establish whether altered hippocampal morphology represents a trait marker for genetic vulnerability in schizophrenia. We outlined the hippocampi on high-resolution MR images obtained from matched samples of control and discordant ...
Katherine L. Narr   +13 more
doaj   +1 more source

Discordant phenotypes in twins with infantile nystagmus

open access: yesScientific Reports, 2021
Infantile nystagmus (IN) may result from aetiologies including albinism and FRMD7 mutations. IN has low prevalence, and twins with IN are rare. Whilst discordant presentation has been previously reported for IN, we present for the first time the ...
Abdullah Aamir   +12 more
doaj   +1 more source

Molar incisor hypomineralisation: current knowledge and practice

open access: yesInternational Dental Journal, EarlyView., 2020
Background Molar incisor hypomineralisation (MIH) is a common developmental dental condition that presents in childhood. Areas of poorly formed enamel affect one or more first permanent molars and can cause opacities on the anterior teeth. MIH presents a variety of challenges for the dental team as well as functional and social impacts for affected ...
Helen D. Rodd   +4 more
wiley   +1 more source

Risk of psychiatric disorders among the surviving twins after a co-twin loss

open access: yeseLife, 2020
Losing a co-twin by death is a severely stressful event yet with unknown impact on the surviving twin’s risk of psychiatric disorders. We identified all Swedish-born twins who lost a co-twin by death between 1973 and 2013 (n = 4,528), their 4939 non-twin
Huan Song   +6 more
doaj   +1 more source

Epigenetic discrimination of Lebanese monozygotic and dizygotic twins: Summarized notes in a single paper [PDF]

open access: yesInternational Research Journal of Science, Technology, Education, and Management, 2021
Monozygotic twins’ differentiation is worldwide limited due to the fact that they share the same genotype. For forensic purposes, many studies involving monozygotic twins were accomplished.
Paula Romanos, Jamilah Borjac
doaj   +1 more source

Associations between birth size and later height from infancy through adulthood : an individual based pooled analysis of 28 twin cohorts participating in the CODATwins project [PDF]

open access: yes, 2018
Background: There is evidence that birth size is positively associated with height in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment.
Abramson, Lior   +68 more
core   +6 more sources

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