Research output: Contribution to journal › Article › peer-review
5-HTTLPR polymorphism of serotonin transporter gene and intellectual environment of professional activity as factors associated with memory changes in aging. / Volf, N. V.; Bazovkina, D. V.; Kulikov, A. V.
In: Zhurnal Vysshei Nervnoi Deyatelnosti Imeni I.P. Pavlova, Vol. 68, No. 1, 01.01.2018, p. 52-61.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - 5-HTTLPR polymorphism of serotonin transporter gene and intellectual environment of professional activity as factors associated with memory changes in aging
AU - Volf, N. V.
AU - Bazovkina, D. V.
AU - Kulikov, A. V.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Heterogeneity of mental aging is under influence of both genetic and environmental factors. Among the latter, the important role belongs to intellectual activity. The observed relationship of polymorphism 5-HTTLPR serotonin transporter gene with efficiency of cognitive functions and "adaptive" nature of one of its genotypes served as a basis for studying the association of this polymorphism with age-related changes in memory in dependence on the intellectual environment of professional activity. The study involved young and old scientists (Hfl, N = 132) and people not associated with science (HHfl, N = 157). The effectiveness of verbal memory was determined on the base of reported words that were heard in the right and the left ears in dichotic speech test, and on the base of recognition of previously presented syllables; visual memory-on the base of recognition of figures. Regardless of age Hfl subjects showed better verbal memory than HHfl. Higher levels of engagement in mental stimulation in Hfl were associated with less decline of memory for words that were addressed to the left hemisphere. Regardless of other factors carriers S' (S or LG alleles) variant of 5-HTTLPR polymorphism, compared with carries of L/L'(La/La) genotype showed better visual memory. Thus, the initial cognitive potential and engagement in mental stimulation in Hfl contribute to the maintenance of functional activity of the left hemisphere. Visual memory was associated with 5-HTTLPR genotype.
AB - Heterogeneity of mental aging is under influence of both genetic and environmental factors. Among the latter, the important role belongs to intellectual activity. The observed relationship of polymorphism 5-HTTLPR serotonin transporter gene with efficiency of cognitive functions and "adaptive" nature of one of its genotypes served as a basis for studying the association of this polymorphism with age-related changes in memory in dependence on the intellectual environment of professional activity. The study involved young and old scientists (Hfl, N = 132) and people not associated with science (HHfl, N = 157). The effectiveness of verbal memory was determined on the base of reported words that were heard in the right and the left ears in dichotic speech test, and on the base of recognition of previously presented syllables; visual memory-on the base of recognition of figures. Regardless of age Hfl subjects showed better verbal memory than HHfl. Higher levels of engagement in mental stimulation in Hfl were associated with less decline of memory for words that were addressed to the left hemisphere. Regardless of other factors carriers S' (S or LG alleles) variant of 5-HTTLPR polymorphism, compared with carries of L/L'(La/La) genotype showed better visual memory. Thus, the initial cognitive potential and engagement in mental stimulation in Hfl contribute to the maintenance of functional activity of the left hemisphere. Visual memory was associated with 5-HTTLPR genotype.
KW - Aging
KW - Intellectual environment
KW - Memory
KW - Polymorphism 5-HTTLPR of serotonin transporter gene
KW - polymorphism 5-HTTLPR of serotonin transporter gene
KW - intellectual environment
KW - memory
KW - METAANALYSIS
KW - RECOGNITION
KW - OLDER-ADULTS
KW - PERFORMANCE
KW - IMPAIRMENT
KW - HIPPOCAMPAL VOLUME
KW - YOUNG
KW - NEUROGENESIS
KW - aging
KW - BRAIN
KW - AGE
UR - http://www.scopus.com/inward/record.url?scp=85049176984&partnerID=8YFLogxK
U2 - 10.7868/S0044467718010057
DO - 10.7868/S0044467718010057
M3 - Article
AN - SCOPUS:85049176984
VL - 68
SP - 52
EP - 61
JO - Zhurnal Vysshei Nervnoi Deyatelnosti Imeni I.P. Pavlova
JF - Zhurnal Vysshei Nervnoi Deyatelnosti Imeni I.P. Pavlova
SN - 0044-4677
IS - 1
ER -
ID: 14278685