[Structure of the glial cells in the nervous system of parasitic and free-living flatworms].

This study is devoted to ultrastructural and immunosytochemical investigation of the nervous system in parasitic and free-living platyhelminthes to learn if glial cells exist in the nervous system of flatworms. We described the ultrastructure of different types of glial cells and the peculiarities of myelinization of gigantic axons; immunoreactivity to the S100b protein is revealed. Comparative analysis of the glia structure of annelids and platods is given; structural, functional, and evolutionary aspects of myelinization of gigantic axons, which are revealed in cestodes, are discussed.

[Ultrathin structure of the main lateral nerve cords and accompanying elements of Triaenophorus nodulosus (Cestoda: Pseudophyllidea)].

The ultrastructure of lateral nerve cords (LNC) of Triaenophorus nodulosus has been studied. 4 of the 6 types of neurones earlier reported for cerebral ganglia are present in LNC: multipolars, bipolars, unipolars and "light"; neurosecretory cells of the 7th type lie in transverse commissures. The growth and formation of LNC occur at the expense of undifferentiated cells found on the cord periphery among mature neurones.

[Multi-profile analysis of survival rate and cause of death in patients with non-Hodgkin's lymphoma].

A relationship has been established between the survival rate of 378 patients who had died of non-Hodgkin's lymphoma (NHL) and their sex, age, ABO- and Rh-factors of the blood, primary focus of the tumor lesion, morphological variant, diagnostic period duration, and the treatment intensity. A higher incidence rate and a higher mean survival were recorded in 222 males, as compared to 156 females. Favourable and unfavourable for survival age interval has been distinguished for NHL disease.