Sentences with phrase «short allele»

The phrase "short allele" refers to a specific version of a gene that is shorter or smaller in size compared to other versions of the same gene. It is a term scientists use to describe a variation of a gene that has a shorter sequence or DNA code. Full definition
Siberian Huskies from Europe with two short alleles of the TH polymorphism received higher ratings of inattention on the Dog - ADHD RS than those with the long allele.
Other groups have found heightened sensitivity to positive social influences amongst short allele carriers as well, which has even been documented using neurochemical measures (Manuck et al., 2004).
A robust relationship was found such that the 5 - HTTLPR short allele, which we have referred to here as a social sensitivity allele, was much more prevalent in collectivistic populations than individualistic populations.
The analysis supports earlier findings that people who had a less functional short allele on a certain area of the serotonin gene had a more difficult time recovering from trauma compared to those with long alleles.
Conversely, 26 % of those carrying two short alleles said they were dissatisfied with life, compared with 20 % of people carrying two long variants.10.1038 / jhg.2011.39 This blog post investigates the statistics.
Data Extraction Logistic regression was used to estimate the effects of the number of short alleles at 5 - HTTLPR, the number of stressful life events, and their interaction on depression.
Short alleles of the DRD4 and TH repeat polymorphisms were associated with higher levels of activity, impulsivity, and inattention.
Being part of a closely knit and dependable social network appears to particularly benefit those with the putative social sensitivity forms (e.g. 5 - HTTLPR short allele) of these polymorphisms.
A purebred tall pea plant has two tall alleles of a gene for height (often abbreviated as TT), and the short plants have two short alleles (tt).
We now report that individuals with one or two copies of the short allele of the serotonin transporter (5 - HTT) promoter polymorphism, which has been associated with reduced 5 - HTT expression and function and increased fear and anxiety - related behaviors, exhibit greater amygdala neuronal activity, as assessed by BOLD functional magnetic resonance imaging, in response to fearful stimuli compared with individuals homozygous for the long allele.
Siberian Huskies possessing at least one short allele of the DRD4 polymorphism displayed greater activity in a behavioural test battery than those with two long alleles.
Thus, the association of the short allele with sensitivity to negative events appears to be only half the story.
Similarly, a randomized control trial designed to improve nurturant and involved parenting reduced adolescent risky behavior, but only amongst those with the short allele (Brody et al., 2009b).
In straightforward fashion, the short version is called the short allele, whereas the long version is called the long allele.
This study found that individuals with the short allele (particularly those with the short / short genotype) were at greater risk for depression when exposed to life stressors such as divorce or the death of a loved one than were long / long individuals.
People with two copies of one version of the serotonin transporter gene region 5 - HTTLPR (the long allele, in case you're into doing your own genetic testing) are less sensitive to emotional information in the environment than those with one or two copies of the short allele.
Children who manifest higher levels of shyness or have 1 or 2 copies of the short allele of the serotonin transporter promoter gene appear to have a different pattern of processing affective stimuli of interpersonal hostility.
Previous research has suggested that being homozygous for the short allele (s / s) may confer risk for depression (25).
Consistent with this hypothesis, we (24) found that people homozygous for the short allele have significantly greater risk for depression if they have experienced a harsh early family environment, but significantly less risk for depression if they come from a supportive early environment, compared to people who are s / l or l / l (see Fig. 3).
LL, homozygous for the long alleles; SD, standard deviation; SL, heterozygous; SS homozygous for the short alleles.
Effect sizes contrasting experimental versus control group were computed both for subjects with the polymorphism considered indicative of heightened susceptibility (e.g., the dopamine receptor D4 gene seven - repeat allele and the serotonin transporter polymorphic region short allele) and others expected to be low in susceptibility (e.g., the dopamine receptor D4 gene four - repeat allele and the serotonin transporter polymorphic region short allele).
Saliva was gathered to test for the presence of long or short alleles of the DRD4 gene that is associated with self - control problems like alcoholism.
a b c d e f g h i j k l m n o p q r s t u v w x y z