«Ageingfeatures» analysis of IGF-1 and PGC-1 genes polymorphism

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Our goal was to investigate whether a polymorphism in IGF-1 gene (wild-type, 192 base pairs) and in the PGC-1 gene (Gly482Ser polymorphism) influence life expectancy. Different distribution of IGF-1 (CA repeats) gene polymorphism was shown. Increasing of 20/- genotype in elderly people compared with newborn group (26,7 and 44,1 %, accordantly, ϰ2 = 8,57, p = 0,0034) and decreasing of 19/19 genotype (51 and 27,9%, accordantly, ϰ2 = 14,815, p = 0.0001) were founded. Furthermore, it was shown different distribution of IGF-1 (CA repeats) gene polymorphism in man and woman. It was detected increasing of 19/20 genotype in newborn man compared with newborn woman (23,2 and 11,3%, accordantly), and significantly increasing of 19/20 genotype in elderly man compared with elderly woman (44,4 and 21,1%, accordantly, ϰ2 = 5,009, p = 0,025). A possible role of IGF-1 gene CA-polymorphism in ageing that is suggested. The prevalent Gly482Ser polymorphism of the PGC-1 gene has not been shown to be associated with life expectancy. It was detected increasing of Gly/Gly genotype in elderly woman compared with elderly man (51,0 и 27,3%, accordantly, ϰ2 = 4,063, p = 0,0438). The joint contribution of IGF-1 gene and PGC-1 gene is involved in ageing between groups of newborn and elderly people (20%, 41,8%, accordantly, ϰ2 = 4,858, p = 0,0275).


About the authors

Svetlana V Potulova

D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology , Saint-Petersburg, RF

Email: sveta_po2000@mail.ru

Oleg S Glotov

D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology , Saint-Petersburg, RF

Email: olglotov@mail.ru 199034, Saint-Petersburg, Mendeleyevskaya line, 3. Russia

Vladislav S Baranov

D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology , Saint-Petersburg, RF

Email: baranov@vb2475.spb.edu


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Copyright (c) 2009 Potulova S.V., Glotov O.S., Baranov V.S.

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