[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.

[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.