Results 1 to 10 of about 30,111 (184)

Gender differences in like-sex middle-aged twins: an extended network analysis of depressive symptoms, cognitive functions and leisure activities [PDF]

open access: yesEuropean Psychiatry
Background Depression affects twice as many women as men. Risk factors for depression certainly impact this difference, but their strong interconnectedness challenges the assessment of standalone contributions.
Daiyan Zhang, Maria Semkovska
doaj   +2 more sources

Monochorionic Diamniotic Twins with Sex Discordance: Case Series [PDF]

open access: yesDiagnostics
Background and Clinical Significance: Ultrasonographic diagnosis of twin pregnancies has become routine, with chorionicity playing a crucial role in assessing associated risks. Traditionally, monochorionic (MC) twins were believed to derive from a single
Valentina Sala   +7 more
doaj   +2 more sources

The association between birth weight and plasma fibrinogen is abolished after the elimination of genetic influences [PDF]

open access: yes, 2003
Low birth weight is associated with an increased risk of atherothrombosis, which may be related in part to the association between low birth weight and high plasma fibrinogen.
Allison DB   +23 more
core   +21 more sources

The Impact of Environmental and Genetic Factors on Bone Quality in Monozygotic and Dizygotic Twins

open access: yesBiomedicines, 2022
The purpose of the research was to assess the genetic and environmental influences on bone properties. One hundred thirty-two pairs of twins (99/33 monozygotic/dizygotic) underwent anthropometric measurements and phalangeal quantitative ultrasound (DBM ...
Elżbieta Tabor   +4 more
doaj   +1 more source

Dizygotic twinning [PDF]

open access: yesHuman Reproduction Update, 2007
The tendency to conceive spontaneous dizygotic (DZ) twins is a complex trait with important contributions from both environmental factors and genetic disposition. Twins are relatively common and occur on average 13 times per 1000 maternities, though the twinning frequency varies over time and geographic location.
Hoekstra, Chantal   +6 more
openaire   +4 more sources

ASSESSMENT OF PERIODONTAL STATUS AND ORAL HYGIENE STATUS CONCORDANCE LEVEL AMONG MONOZYGOTIC AND DIZYGOTIC TWINS

open access: yesВісник проблем біології і медицини, 2022
Diseases of periodontal tissues, as well as caries, are a common problem among patients. The reason for the development of periodontal lesions is a complex interaction between environmental factors (level of oral hygiene, nutrition, place of living, bad ...
Bilinskyi O. Ya., Kostenko E. Ya.
doaj   +1 more source

Genetic modelling of dizygotic twinning in pedigrees of spontaneous dizygotic twins [PDF]

open access: yesAmerican Journal of Medical Genetics, 1996
The inheritance of spontaneous dizygotic (DZ) twinning was investigated in 1,422 three-generation pedigrees ascertained through mothers of spontaneous DZ proband twins. DZ twinning was modelled as a trait expressed only in women. The penetrance was modelled first as a parity independent and secondly as parity dependent.
Jakobus F. Orlebeke   +7 more
openaire   +3 more sources

Fathering of dizygotic twins and risk of prostate cancer: nationwide, population-based case-control study. [PDF]

open access: yesPLoS ONE, 2014
BACKGROUND: An association between male fertility and risk of prostate cancer has been suggested, possibly through lower androgen levels in subfertile men.
Sara Wirén   +4 more
doaj   +1 more source

Indian twin registry: A gold mine for genetic studies

open access: yesAsian Journal of Medical Sciences, 2023
Twins are a source of curiosity, both for the family and the scientific community. Genetic similarities between twins have been the preferred choice to study the heritability of traits.
Ruby Dhar   +2 more
doaj   +1 more source

Urticaria in Monozygotic and Dizygotic Twins [PDF]

open access: yesJournal 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   +3 more
openaire   +5 more sources

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