[Morphological analysis of hemocytes of ascidian Halocynthia aurantium].

The current paper is devoted to the investigation of ascidian circulating hemocytes populations which are used as an example of blood cell specialization in the lower Chordates. Work has been performed on a solitary ascidian Halocynthis aurantium from the Japanese Sea. Using light microscopy and histiochemistry, we have identified five main populations of circulating hemocytes (hemoblasts, granulocytes, hyaline amoebocytes, macrophage-like and morula cells), which are typical of all tunicates.

[Thymic mast cell localization at different stages of the ontogenesis in the mouse].

The aim of this research was to characterize the population of thymic mast cells (MC) which were demonstrated by histochemical methods, at different stages of mouse ontogenesis. First MCs appeared on day 19 of intrauterine life. MCs were localized to the thymic medulla during the whole embryonic period.

LPO and apoptosis during pulmonary tuberculosis.

LPO and apoptosis in blood mononuclear cells were studied in patients with pulmonary tuberculosis before and during treatment with standard chemotherapeutics. Pulmonary tuberculosis was accompanied by LPO activation and intensification of apoptosis in lymphocytes and monocytes. These changes were observed before and after the course of intensive care.