Professor, was born in 14.05.1939. He graduated from the Tbilisi State
University in 1963. In 1963-1968 T. Lezhava was the postgraduate student at
the laboratory of Human Genetics at the Institute of Morphology of USSR
Medical Academy of Sciences (Moscow) and received his degree of Candidate of
Biological sciences in 1968.In 1983 he defended the thesis "The
morphofunctional heterogeneity of chromosomes in very senile age" for PhD (Lenlngrad)
and was awarded the Professor's degree.
In 1969-197S T. Lezhava was the Head of Department of Genetics of the
Tbilisi Medical Institute. Since 1975 he has been working at the Tbilisi
State University as a Head of Department of Genetics
In 1977 under his initiative the International Simposium "Aging
Cytogenetics" was founded and had been held in 1977, 83, 89 (Tbilisi) and in
1989 (Hlrosima, Japan). In 1991 he founded a new department "Bio-Medical
Ecological Genetics" at the Tbilisi State University. Prof .T.Lezhava is a
member of the Anti-aging Academy (USA), New York Academy of Sciences, the
Vice-President of Georgian Medical-Biological Academy of Sciencies, Head of
Georgian Human Genetic association, a member of
Association of Biomedical Gerontology.
T. Lezhava is delivering lectures in Genetics, Human Genetics, Cytogenetics,
Genome evolution. T. Lezhava has been a supervisor of many postgraduate
students. Most of T.Lezhava's scientific works are dedicated to the problem
of aging genetics. He has discovered that the progressive
heterochromatinization occurs in aging and the heterochromatinized regions
are inaccessible for reparative enzymes, as a result, a cell number with
chromosome aberrations substantially rises. Heterochromatinization
profoundly affects functioning of the genetic apparatus in old age and for
generating a number of aging pathologies. One must bear this fact in mind
when intends to Influence on the lifespan of men and eucariot in general.
In 1998 T.Lezhava was granted the gold medal MAN OF THE YEAR from American
Bibliographical Commemoral Institute.