Timing is critical: Gene, environment and timing interactions in genetics of suicide in children and adolescents

2010 ◽  
Vol 25 (5) ◽  
pp. 284-286 ◽  
Author(s):  
G. Zalsman
Keyword(s):  
Meta Analysis ◽  
Promoter Polymorphism ◽  
Imaging Data ◽  
New Approach ◽  
Age Related ◽  
Gene Environment ◽  
Related Development ◽  
Serotonin Transporter Promoter Polymorphism ◽  
Family Based ◽  
And Gender

AbstractSuicidal behavior runs in families and is prevalent in adolescence. Case-control and family-based studies in this age group failed to find a genetic association that survived replications. Gene environment approach gave new hope for possible associations especially with the short allele of the serotonin transporter promoter polymorphism (5-HTTLPR). However, a recent meta-analysis raised doubts about the consistency of these findings. Some new structural and functional imaging data may shade light on the age-related and gender-related development of the brain. This review suggests a new approach to gene by environment and timing interaction to understand the interplay that leads to suicidality in adolescents and young adults.

scholarly journals Change by challenge: A common genetic basis behind childhood cognitive development and cognitive training

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Bruno Sauce ◽  
John Wiedenhoeft ◽  
Nicholas Judd ◽  
Torkel Klingberg
Keyword(s):  
Cognitive Development ◽  
Brain Plasticity ◽  
Training Sample ◽  
Age Related ◽  
Central Piece ◽  
Gene Environment ◽  
Related Development ◽  
Explained Variation ◽  
Genetic And Environmental Factors ◽  
Cognitive Challenges

AbstractThe interplay of genetic and environmental factors behind cognitive development has preoccupied multiple fields of science and sparked heated debates over the decades. Here we tested the hypothesis that developmental genes rely heavily on cognitive challenges—as opposed to natural maturation. Starting with a polygenic score (cogPGS) that previously explained variation in cognitive performance in adults, we estimated its effect in 344 children and adolescents (mean age of 12 years old, ranging from 6 to 25) who showed changes in working memory (WM) in two distinct samples: (1) a developmental sample showing significant WM gains after 2 years of typical, age-related development, and (2) a training sample showing significant, experimentally-induced WM gains after 25 days of an intense WM training. We found that the same genetic factor, cogPGS, significantly explained the amount of WM gain in both samples. And there was no interaction of cogPGS with sample, suggesting that those genetic factors are neutral to whether the WM gains came from development or training. These results represent evidence that cognitive challenges are a central piece in the gene-environment interplay during cognitive development. We believe our study sheds new light on previous findings of interindividual differences in education (rich-get-richer and compensation effects), brain plasticity in children, and the heritability increase of intelligence across the lifespan.

scholarly journals High-temperature requirement factor A1 rs11200638 polymorphism and age-related macular degenerative from a comprehensive analysis about 15316 subjects

2020 ◽  
Author(s):  
Ying Liu ◽  
Huipeng Jin ◽  
Dong Wei ◽  
Wenxiu Li
Keyword(s):  
High Temperature ◽  
Meta Analysis ◽  
Case Control ◽  
Dominant Model ◽  
Case Control Studies ◽  
Temperature Requirement ◽  
Age Related ◽  
Gene Environment ◽  
Increased Risk ◽  
Taqman Pcr

Abstract Background The high-temperature requirement factor A1 (HTRA1) gene at the 10q26 locus has been associated with age-related macular degenerative (AMD) risk, with the significantly associated polymorphism being (rs11200638, -625G/A), however, above association is not consistent. We investigated an updated meta-analysis to evaluate the association between rs11200638 polymorphism and AMD risk thoroughly addressing this issue. Methods An identification was covered with the Pubmed and Chinese Wanfang databases through 27th Jan, 2020. Odds ratios (OR) and 95% confidence intervals (CI) were used to assess the strength of associations. After a thorough and meticulous search, 35 different articles (33 case-control studies with HWE, 22 case-control studies about wet/dry AMD) were retrieved. Results Individuals carrying A-allele or AA genotype may have an increased risk to be AMD disease. For example, there has a significantly increased relationship between rs11200638 polymorphism and AMD both for Asians (OR: 2.50, 95%CI: 2.22-2.80 for A-allele vs. G-allele) and Caucasians (OR: 2.11, 95%CI: 1.43-3.13 for A-allele vs. G-allele). Moreover, a similar trend in the source of control subgroup was detected. To classify the type of AMD, increased association was also observed in both wet (OR: 3.40, 95%CI: 2.90-3.99 for dominant model) and dry (OR: 2.08, 95%CI: 1.24-3.48 for dominant model) AMD. Finally, based on the different genotyping methods, increased relationships were identified by sequencing, TaqMan, PCR-RFLP. Conclusions Our present meta-analysis suggests that the HTRA1 rs11200638 polymorphism are potentially associated with the risk of AMD development, especially about individuals carrying A-allele or AA genotype, who may be as identified targets to detect and intervene in advance. Further studies using larger sample sizes and including information about gene-environment interactions should be conducted to elucidate.

scholarly journals High-temperature requirement factor A1 rs11200638 polymorphism and age-related macular degenerative from a comprehensive analysis about 15316 subjects

2020 ◽  
Author(s):  
Ying Liu ◽  
Huipeng Jin ◽  
Dong Wei ◽  
Wenxiu Li
Keyword(s):  
High Temperature ◽  
Meta Analysis ◽  
Case Control ◽  
Dominant Model ◽  
Case Control Studies ◽  
Temperature Requirement ◽  
Age Related ◽  
Gene Environment ◽  
Increased Risk ◽  
Taqman Pcr

Abstract Background: The high-temperature requirement factor A1 (HTRA1) gene at the 10q26 locus has been associated with age-related macular degenerative (AMD) risk, with the significantly associated polymorphism being (rs11200638, -625G/A), however, above association is not consistent. We investigated an updated meta-analysis to evaluate the association between rs11200638 polymorphism and AMD risk thoroughly addressing this issue. Methods: An identification was covered with the Pubmed and Chinese Wanfang databases through 27th Jan, 2020. Odds ratios (OR) and 95% confidence intervals (CI) were used to assess the strength of associations. After a thorough and meticulous search, 35 different articles (33 case-control studies with HWE, 22 case-control studies about wet/dry AMD) were retrieved. Results: Individuals carrying A-allele or AA genotype may have an increased risk to be AMD disease. For example, there has a significantly increased relationship between rs11200638 polymorphism and AMD both for Asians (OR: 2.51, 95%CI: 2.22-2.83 for A-allele vs. G-allele) and Caucasians (OR: 2.63, 95%CI: 2.29-3.02 for A-allele vs. G-allele). Moreover, a similar trend in the source of control subgroup was detected. To classify the type of AMD, increased association was also observed in both wet (OR: 3.40, 95%CI: 2.90-3.99 for dominant model) and dry (OR: 2.08, 95%CI: 1.24-3.48 for dominant model) AMD. Finally, based on the different genotyping methods, increased relationships were identified by sequencing, TaqMan, PCR-RFLP and RT-PCR. Conclusions: Our present meta-analysis suggests that the HTRA1 rs11200638 polymorphism are potentially associated with the risk of AMD development, especially about individuals carrying A-allele or AA genotype, who may be as identified targets to detect and intervene in advance. Further studies using larger sample sizes and including information about gene-environment interactions should be conducted to elucidate.

Age and Gender Variations in Age-related Macular Degeneration Prevalence in Populations of European Ancestry: A Meta-analysis

Ophthalmology ◽  
2012 ◽  
Vol 119 (3) ◽  
pp. 571-580 ◽  
Author(s):  
Alicja R. Rudnicka ◽  
Zakariya Jarrar ◽  
Richard Wormald ◽  
Derek G. Cook ◽  
Astrid Fletcher ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Meta Analysis ◽  
Age Related Macular Degeneration ◽  
European Ancestry ◽  
Age And Gender ◽  
Age Related ◽  
And Gender ◽  
Gender Variations

scholarly journals High-temperature requirement factor A1 rs11200638 polymorphism and age-related macular degenerative from a comprehensive analysis about 15316 subjects

2020 ◽  
Author(s):  
Ying Liu ◽  
Huipeng Jin ◽  
Dong Wei ◽  
Wenxiu Li
Keyword(s):  
High Temperature ◽  
Meta Analysis ◽  
Case Control ◽  
Dominant Model ◽  
Case Control Studies ◽  
Temperature Requirement ◽  
Age Related ◽  
Gene Environment ◽  
Increased Risk ◽  
Taqman Pcr

Abstract Background: The high-temperature requirement factor A1 (HTRA1) gene at the 10q26 locus has been associated with age-related macular degenerative (AMD) risk, with the significantly associated polymorphism being (rs11200638, -625G/A), however, above association is not consistent. We investigated an updated meta-analysis to evaluate the association between rs11200638 polymorphism and AMD risk thoroughly addressing this issue. Methods: An identification was covered with the Pubmed and Chinese Wanfang databases through 27th Jan, 2020. Odds ratios (OR) and 95% confidence intervals (CI) were used to assess the strength of associations. After a thorough and meticulous search, 35 different articles (33 case-control studies with HWE, 22 case-control studies about wet/dry AMD) were retrieved. Results: Individuals carrying A-allele or AA genotype may have an increased risk to be AMD disease. For example, there has a significantly increased relationship between rs11200638 polymorphism and AMD both for Asians (OR: 2.51, 95%CI: 2.22-2.83 for A-allele vs. G-allele) and Caucasians (OR: 2.63, 95%CI: 2.29-3.02 for A-allele vs. G-allele). Moreover, a similar trend in the source of control subgroup was detected. To classify the type of AMD, increased association was also observed in both wet (OR: 3.40, 95%CI: 2.90-3.99 for dominant model) and dry (OR: 2.08, 95%CI: 1.24-3.48 for dominant model) AMD. Finally, based on the different genotyping methods, increased relationships were identified by sequencing, TaqMan, PCR-RFLP and RT-PCR. Conclusions: Our present meta-analysis suggests that the HTRA1 rs11200638 polymorphism are potentially associated with the risk of AMD development, especially about individuals carrying A-allele or AA genotype, who may be as identified targets to detect and intervene in advance. Further studies using larger sample sizes and including information about gene-environment interactions should be conducted to elucidate.

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