[The estimation of Pneumocystis carinii in HIV-infected patients occurrence based on three different methods]. / Ocena wystepowania Pneumocystis carinii u chorych zakazonych wirusem HIV w oparciu o wyniki trzech metod diagnostycznych.

The frequency of Pneumocystis carinii occurrence in BAL of 38 HIV-infected patients was determined with three different method. BAL sediments were stained with Giemsa method, silvered according to Gomori-Grocott method and studied with indirect immunofluorescence assay. Using Giemsa method staining Pneumocystis carinii was diagnosed in 81.6% of patients, in Gomori-Grocott method--in 31.6% of patients, but results of indirect immunofluorescence assay were positive only in 23.,7%. In our study staining BAL sediments with Giemsa method allowed to detect Pneumocystis carinii in the highest percentage of examined patients.

[Analysis of the effect of selected polymers on morphodynamic features of cells in Blepharisma undulans]. / Analiza wplywu wybranych polimerow na cechy morfodynamiczne komórki pierwotniaka Blepharisma undulans.

The studies presented enable to evaluate the survival rate of the protozoa in contact with the studied polymers (foils: with polyethylene PE, polyvinyl chloride P-25, P-47, polyester E1 and irradiated collagen L7). It can also be established whether the change of certain morphodynamic parameters could be used to evaluate biological usefulness of plastics. Stereometric method and factor analysis were used in the studies. On the basis of the obtained data polyvinyl chloride P-47 was well assessed, while irradiated collagen L7 showed most negative features.

[Analysis of the effects of selected polymers on morpho-dynamic features of rat hepatocytes]. / Analiza wplywu wybranych polimerów na cechy morfodynamiczne hepatocytów szczura.

The thesis shows the results of the research on the influence of the film-form polymers on the hepatocytes in rats. The polymers were composed of polyethylene (PE), polyvinyl chlorides (P-25, P-47), polyesters (A, B, E) and irradiated L7 collagen. The aim of the research was to establish whether the changes in the specific morpho-dynamic characteristics-which prove the changes in the hepatocyte metabolic activity in rats-could be used to assess the usability of the above mentioned polymers for medicine. The evaluation of the research findings was analysed on the basic of the stereometric methods and factor analysis. On the basic of the obtained results, polyvinyl chlorides P-25 and P-47 have been evaluated most favourably as far as their possible application in medicine is concerned, whereas polyester E shows the most negative characteristics for such an application.