[Diagnostic techniques in breast cancer detection. Part III. The new cytobiological methods].

This publication contains an overview of the cyto-biological technologies utilized in breast cancer diagnosis. It refers to technologies created de novo and heralded as a breakthrough ones, as well as to those existing for years. An integration of new diagnostic biogenetic methods, with imaging techniques such as mammography, have become essential in order to cope with the requirements of early detection of breast tumours.

[Diagnostic techniques in breast cancer detection. Part II: Physical and biopsy methods].

This publication contains an overview of methods based on the principles of physics applied in breast cancer diagnosis. It refers both to those created de novo and those that have recently been updated, thanks to the revolutionary progress in digital, computer and information technologies. It also contains an overview of the biopsy techniques considered to be "the golden standard" in breast cancer diagnoses, as well as the latest ones, allowing to obtain ductal cells.

[Diagnostic techniques in breast cancer detection. Part I: imaging methods and their modifications].

This publication contains an overview of the imaging techniques and the related technologies utilized in breast cancer diagnosis. It describes both those known for tens of years as well as the ones developed recently thanks to the new technological developments. An integration and coexistence of the diagnostic methods from classical mammography to the computerized laser mammography has become essential in order to cope with the requirements of early detection of breast tumours, which is a precondition of successful treatment and longer survival periods upon which patients rely.

Effect of helium-oxygen mixture on myocardiac mitochondria of the rat.

Ultrastructural and stereological analysis of mitochondria of myocardiac cells from rats was performed after 2-hour breathing of helium-oxygen mixture. The following changes were observed in the cells of experimental animals as compared with the control ones: swelling of mitochondria, increase of the mean volume fraction of these structures and decrease of axial ratio of mitochondria.

Morphometric ultrastructural evaluation of human peripheral blood T lymphocyte subpopulations isolated on the basis of their affinity for sheep red blood cells.

The present investigation were undertaken to compare on the basis of ultrastructural morphometric analysis human T lymphocyte subfractions forming rosettes with sheep red blood cells (SRBC). The following T lymphocyte subfractions were obtained: ARFC (active rosettes), T1RFC (rosettes after 1 h at 4 degrees C) and T2RFC (rosettes after 2 h at 4 degrees C). Analysis of the mean cell and nuclei volumes of lymphocyte subfractions led to the separation of two cell groups differing in volume in each donor: a cell group consisting of large cells (T1RFC) and group of small cells (ARFC and T2RFC).