Mapping cancer research across Central and Eastern Europe, the Russian Federation and Central Asia: Implications for future national cancer control planning.

Cancer research is an essential part of national cancer control programmes, and the emerging economies of Central and Eastern Europe (CEE) and the Russian Federation and Central Asia (R-CA) (Commonwealth of Independent States) remain relatively understudied. Here, we map the cancer research activity from the 29 countries across these regions over a 10-year period (2007-2016), using a standard scientometric approach. Research activity was compared with the countries' wealth and with the disease burden from different cancers, and analyses were also performed by the research domain (e.

Fibonacci Sequence and Supramolecular Structure of DNA.

We proposed a new model of supramolecular DNA structure. Similar to the previously developed by us model of primary DNA structure [11-15], 3D structure of DNA molecule is assembled in accordance to a mathematic rule known as Fibonacci sequence. Unlike primary DNA structure, supramolecular 3D structure is assembled from complex moieties including a regular tetrahedron and a regular octahedron consisting of monomers, elements of the primary DNA structure.

Reparation as a factor contributing to genetic variability of the biological system.

Kinetics of DNA synthesis in mitotic cycle of in mouse corneal epithelial cells after γ-irradiation in different S phase points was studied by the method of autoradiography. Normally, S phase of corneal epithelial cells consists of two phases (S1 and S2) separated by an interval without DNA synthesis. Each phase, in turn, includes two subphases with a pause in DNA synthesis.

Dynamics of DNA synthesis disturbance and recovery after fractionated irradiation of S phase cells.

Using the autoradiographic method we studied the kinetics of DNA synthesis during themitotic cycle of mouse corneal epithelial cells after γ-irradiation in a dose of 2 Gy at different S-phase points. Normally, S phase in corneal epitheliocytes includes S1 and S2 phases separated by an interval during which DNA is not synthesized. Double exposure modifies the pattern of DNA synthesis in the cell due to reparation of injuries.

Comparative analysis of the kinetics of DNA synthesis after exposure during different phases of the cell cycle S period.

The kinetics of DNA synthesis in the mitotic cycle of mouse corneal epithelial cells was studied after a single γ-irradiation of cells in a dose of 4 Gy at different S-phase points. Normally, corneal epitheliocyte S phase consists of S1 and S2 phases separated by an interval during which no DNA is synthesized. The duration of each phase was lengthened after single irradiation due to reparation of injuries in the cells at the expense of the time normally occupied by g1 period of the mitotic cycle.