[Comparative analysis of cytogenetic examination of control groups of subjects carried out in different Russian laboratories].

The incidence of unstable chromosome aberrations in peripheral blood lymphocytes from unirradiated control subjects was analyzed using cytogenetic data obtained from 9 cytogenetic laboratories located in Moscow, St.-Petersburg, Obninsk, and Dubna (Russia). The objective of this study was to estimate the level and spectrum of spontaneous chromosome aberrations in human lymphocytes.

[Dynamics of chromosomal aberrations in primates subject to continuous and fractionated gamma-irradiation by equally effective residual doses].

The paper deals with a comparative study of two regimens of Macaca mulatta continuous 2-week gamma- and double fractionated acute irradiation by the total absorbed doses of 250 and 132 cGy, respectively; data about chromosomal aberration rates in peripheral lymphocytes were correlated. Based on calculations it was hypothesized that, regardless of regimen, by day-12 of irradiation the effective residual dose would be same, i.e.

[Surgical treatment of patients with lung cancer involving mediastinum organs with massive invasion in the thoracic aorta by using the extracorporeal circulation].

The patients (11 cases) with massive invasion in the thoracic aorta have been operated in the period from 2002 till 2010. The tumor of left lung was diagnosed in 9 cases and tumor of the mediastinum--in 2 cases. Prosthetics of the arch of aorta was performed under condition of artificial circulation in 6 cases.

[Ways to improve efficacy of emergency operative interventions in patients with cancer of the left flank of the colon complicated by obstruction].

In order to improve radicalism of emergency surgical interventions an appropriate method of total mesocolonectomy and D3-lymph node dissection in the medial-lateral direction and the principle of "no-touch technique" were used in 14 patients. This technique is safe, effective, does not prolong the duration of operation and postoperative period, is not followed by increased number of complications and lethality.

[The role of cytogenetic examination for prognosis of remote consequences of irradiation].

Correlation between the level of somatic pathology and cytogenetic characteristics of blood was analyzed in a group of liquidators of the accident at the Chernobyl Nuclear Power Plant (ChNPP). A statistically significant correlation was found between the occurrence of cardiovascular diseases and the level of chromosome aberrations (total frequency of chromosome aberrations, frequency of dicentrics and centric rings, frequency of chromatid aberrations). The results obtained are of great importance for the substantiated prediction of the development of postradiation pathologies.