Results 51 to 60 of about 302,244 (248)
Dementia risk in women higher in same‐sex than opposite‐sex twins
Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020 Introduction Hormones may be one possible mechanism underlying sex differences in dementia incidence. We examined whether presumed differential prenatal hormone milieu is related to dementia risk by comparing dementia rates in same‐ and opposite‐sex ...
Jing Luo +5 more
doaj +1 more source
Economics of Twin Pregnancies in Dairy Cattle
Animals, 2021 Twinning in Holstein dairy cows has increased over time concurrent with increased milk production. Twinning in dairy cattle is not desirable due to the negative effects on both cows that calve twins and calves born as twins that result in economic losses
Victor E. Cabrera, Paul M. Fricke
doaj +1 more source
Familial Risk and Heritability of Cancer Among Twins in Nordic Countries.
Journal of the American Medical Association (JAMA), 2016 IMPORTANCE Estimates of familial cancer risk from population-based studies are essential components of cancer risk prediction. OBJECTIVE To estimate familial risk and heritability of cancer types in a large twin cohort.
L. Mucci +24 more
semanticscholar +1 more source
Prevention of multiple pregnancy
Middle East Fertility Society Journal, 2010 Monozygotic twins are two individuals derived from one sperm and one egg; dizygotic twins are individuals born together but originating from different eggs fertilized by different sperms.
P.G. Crosignani
doaj +1 more source
European PsychiatryBackground 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
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Human Reproduction, 2009 Common knowledge of over a century has it that monozygotic and dizygotic twinning events occur by unrelated mechanisms: monozygotic twinning 'splits' embryos, producing anomalously re-arranged embryogenic asymmetries; dizygotic twinning begins with ...
C. Boklage
semanticscholar +1 more source
Gastroenterology, 2004 BACKGROUND & AIMS There is growing evidence that the interplay of genetic susceptibility and environmental factors leads to primary biliary cirrhosis (PBC).
C. Selmi +11 more
semanticscholar +1 more source
JCPP Advances, EarlyView.This study found that genetic factors largely influence crying duration and settle ability in infancy, while shared environmental factors primarily affect the number of night wakeups. Etiological influences tended to change from 2 to 5 months, reflecting a highly plastic period in infant brain development and in child‐environment interactions. Abstract
Charlotte Viktorsson +5 more
wiley +1 more source
On The Influence of Genetic Factors on the Formation of Homosexuality by Data of Twin Studies
Психологічне консультування i психотерапія, 2019 Results of twin studies are presented; these demonstrate that in a number of cases genetic effects can play a role of mild predisposing factors for the development of homosexuality, but the main part in its formation is accounted for by psychological and
Garnik Коcharyan
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Application of intraoral scanner to identify monozygotic twins
BMC Oral Health, 2020 Background DNA base identification is a proper and high specificity method. However, identification could be challenged in a situation where there is no database or the DNA sequence is almost identical, as in the case of monozygotic (MZ) twins.
Botond Simon +6 more
doaj +1 more source