scholarly journals Detection of six novel de novo mutations in individuals with low resilience to psychological stress

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0256285
Author(s):  
Esfandiar Azadmarzabadi ◽  
Arvin Haghighatfard

Genetic bases of psychological stress resilience have been studied previously, but mechanisms and genetic variants which are involved in stress resilience are still unclear. The present study aimed to evaluate the associations between variants in dopaminergic pathway genes with stress resilience. Subjects of the present study were divided into four groups. Group A included persons with normal reactions to major life events stressors; group B included persons with an acute stress reaction to major life events stressor; group C included persons with normal reactions to Crises/catastrophes stressors, and group D included persons with an acute stress reaction to Crises/catastrophes stressors. DNA was extracted from the subject’s blood, and the entire length of 14 genes DRD1, DRD2, DRD3, DRD4, DRD5, COMT, DBH, TH, MAOA, DDC, DAT, 5-HTT, BDNF, and GDNF were sequenced by automated sequencers ABI 3700. Results showed 24 point mutations in 12 genes, including 16 SNPs and six novel mutations, which were significantly correlated to low-stress resilience. Most of the SNPs were known as risk alleles in psychiatric disorders. Several associations were found between genetic variants and psychological characteristics. Findings suggest dopaminergic as an important pathway in stress and stress resilience also indicated shared genetic bases between low-stress resilience and several psychiatric disorders.

1981 ◽  
Vol 4 (1) ◽  
pp. 1-39 ◽  
Author(s):  
Allen D. Kanner ◽  
James C. Coyne ◽  
Catherine Schaefer ◽  
Richard S. Lazarus

1994 ◽  
Vol 5 (7) ◽  
pp. 712-715
Author(s):  
Katsutoshi Tanno ◽  
Hitoshi Imaizumi ◽  
Satoshi Nara ◽  
Hitoshi Kano ◽  
Takafumi Naito ◽  
...  

1990 ◽  
Vol 31 (6) ◽  
pp. 949-959 ◽  
Author(s):  
Guy F. M. G. Berden ◽  
Monika Althaus ◽  
Frank C. Verhulst

Author(s):  
Valentina Hlebec ◽  
Maja Mrzel ◽  
Tina Kogovšek

Some studies (e.g., Kogovšek & Hlebec, 2008, 2009) have shown that the name generator and the role relation approaches to measuring social networks are to some extent comparable, but less so the name generator and the event-related approaches (Hlebec, Mrzel, & Kogovšek, 2009). In this chapter, the composition of the social support network assessed by both the general social support approach and the event-related approach (support during 15 major life events) is analyzed and compared. In both cases, the role relation approach is used. In addition, in both approaches a more elaborate (16 possible categories ranging from partner, mother, father, friend to no one) and a more simple (6 possible categories ranging from family member, friend, neighbor to no one) response format is applied and compared. The aim of the chapter is to establish, in a controlled quasi-experiment setting, whether the different approaches (i.e. the general social support and the event-related approach) produce similar social networks regardless of the response format (long vs. short).


Author(s):  
Arun S. Karlamangla ◽  
Teresa E. Seeman

Psychosocial factors over the life course and major life events are associated with the health, functional status, and survival of older adults. This chapter discusses the biological mechanisms through which these influences are thought to operate, and how life stresses might accelerate the usual ageing of biological systems. It starts with a brief description of psychosocial determinants of health and functioning before elaborating on the allostatic mechanisms by which the body adapts its internal physiological milieu in response to perceived stressors. The price paid for frequent and recurring adaptation is eventual dysregulation of the mediators of allostasis, or allostatic load. We close with a brief discussion of allostatic load links to health outcomes in older adults and potential interventions that might ameliorate the impact of psychosocial adversities on health.


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