منابع مشابه
Twin and genetic effects on life events.
Twin studies that examine the effect of specific environmental risk factors on psychiatric disorders assume that there are no differences in prevalences of these risk factors between twins and singletons. Violation of this assumption signifies that the results from twin studies might not generalize to singletons. Another assumption, not only underlying twin studies but also epidemiological rese...
متن کاملEarly-life events. Effects on aging.
During the last two decades, a considerable body of evidence has emerged showing that circumstances during the fetal period and childhood may have lifelong programming effects on different body functions with a considerable impact on disease susceptibility. From a medical point of view, these long-term effects are today referred to as the Developmental Origins of Health and Disease (DOHaD) conc...
متن کامل5-HTTLPR S-allele: a genetic plasticity factor regarding the effects of life events on personality?
The S-allele of the 5-HTTLPR has been identified as a genetic vulnerability factor, being associated with an increased risk for affective disorders and/or maladaptive traits (e.g. neuroticism), especially after exposition to negative life-events (LEs). Alternatively, it has been hypothesized that this genetic risk factor might constitute a genetic plasticity factor. That is, S-allele carriers a...
متن کاملgenetic effects on refraction and correlation with hemodynamic variables: a twin study
spherical equivalent (se) has not been linked to increased cardiovascular morbidity. methods: 132 hungarian twins (age 43.3±16.9 years) underwent refraction measurements (huvitz mrk-3100 premium autorefractokeratometer) and oscillometry (tensiomed arteriograph). results: heritability analysis indicated major role for genetic components in the presence of right and left se (82.7%, 95%ci, 62.9 to...
متن کاملthe effects of multiple intelligences (focus on musical, visual, and linguistic) and direct instruction on learning grammar: a case on iranian efl students at elementary level
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
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ژورنال
عنوان ژورنال: Twin Research and Human Genetics
سال: 2005
ISSN: 1832-4274,1839-2628
DOI: 10.1375/twin.8.3.224