Results 1 to 10 of about 14,525 (192)

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

American 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.
Cathryn M Lewis, Catherine Derom, Jacob F Orlebeke   +2 more
exaly   +4 more sources

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

Biomedicines, 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, Małgorzata Bach, Aleksandra Werner   +2 more
exaly   +3 more sources

Neurometabolic Stability and Heritability in the Adolescent Brain: A Preliminary Longitudinal Twin MRS Study. [PDF]

NMR Biomed
In this preliminary longitudinal MRS study of early adolescent twins, neurometabolite ratios in the prefrontal cortex and thalamus appeared relatively stable over a 6‐month interval. Moderate heritability estimates were observed for prefrontal Glx (glutamine + glutamate) as well as thalamic glutamate and choline compounds, suggesting possible region ...
Hamann C, Markovic A, Caccia J, Badek A, Wild S, Adorjan K, Kaess M, Tuura R, Tarokh L.   +8 more
europepmc   +2 more sources

A person-centered and genetically informed approach toward characterizing multidomain resilience to neighborhood disadvantage in youth. [PDF]

J Child Psychol Psychiatry
Background Examining resilience to adversity across multiple behavioral domains (e.g., psychological well‐being, social functioning) can better characterize positive development and inform novel prevention and intervention efforts. However, few studies have employed person‐centered methods to examine individual profiles of resilience across multiple ...
Bezek JL, Shewark EA, Suarez GL, Klump KL, Burt SA, Hyde LW.   +5 more
europepmc   +2 more sources

Dizygotic twinning [PDF]

Human 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, Zhao, Zhen Zhen, Lambalk, Cornelius B., Willemsen, Gonneke, Martin, Nicholas G., Boomsma, Dorret I., Montgomery, Grant W.   +6 more
openaire   +7 more sources

Isolated imperforate anus in dizygotic twins

Journal of Pediatric Surgery Case Reports, 2023
The authors report an isolated imperforate anus case in a dizygotic twin, which is the first reported case in the literature, the other reported cases were in monozygotic twins.
Dania Alameh, Hanin Shatrit, Mariam Thalji, Asil Yagmour, Motee Abuawaad   +4 more
doaj   +1 more source

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

PLoS 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, Linda Drevin, Olof Akre, David Robinson, Pär Stattin   +4 more
doaj   +1 more source

Indian twin registry: A gold mine for genetic studies

Asian 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 , Arun Kumar , Subhradip Karmakar   +2 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   +4 more sources

Gastritis Stages in Monozygotic and Dizygotic Dyspeptic Twins

Gastroenterology Research and Practice, 2020
Background. The progression of Helicobacter pylori-associated gastritis towards atrophic gastritis is modulated by host-related and environmental factors.
Mindaugas Urba, Jurgita Skieceviciene, Dainius Janciauskas, Laimas Jonaitis, Limas Kupcinskas, Matteo Fassan, Massimo Rugge, Juozas Kupcinskas   +7 more
doaj   +1 more source