[Diagnosis of odontogenic maxillary sinusitis by spiral computed tomography using a dental program].

Genyantrum mucosal changes and the upper jaw ridge were analyzed in different forms of periodontitis and in cases of endodontic treatment failure with the dental filling material being in maxillary sinus cavity. Spiral computed tomography using the Denta Scan software could confirm the odontogenic nature of the changes found in 57 (85.0%) patients with suspected maxillary sinusitis.

[Spiral computed tomography with functional tests in diagnosis of chronic obstructive diseases of the lungs].

The potential of spiral computed tomography (SCT) and high resolution computed tomography (HRST) in diagnosis of chronic obstructive pulmonary diseases (COPD) is described. Semiotic sings of bronchial asthma (BA) and chronic obstructive bronchitis (COB) are specified. Informative value of SCT in differential diagnosis of BA and COB including early stage of the diseases is analysed.

[Computed tomographic densitometry in the diagnosis of chronic obstructive lung diseases].

The capacities of spiral computed tomography (CT) synchronized with a patient's respiration in the diagnosis of chronic obstructive lung diseases (COLD) were studied. Normal lung parenchymal density was clarified in different parts. The densitometric changes typical of bronchial asthma (BA) and COLD were studied in relation to the severity of an obstructive process.

[Localization of antigens in the chromatin of normal rat liver cells, not detectable in hepatoma chromatin].

Antibodies against rat liver chromatin interact with homologous chromatin as well as with chromatin of Zajdela ascite hepatoma and solid hepatoma 27, but not with the nuclear matrix isolated from these hepatomas. Rat liver chromatin regions hypersensitive to DNAase I and endogenous Mg2+-dependent nuclease are enriched with immunogenic nonhistone proteins. Using antiliver IgG pretreated with chromatin of Zajdela ascite hepatoma and solid hepatoma 27, it was shown that liver chromatin antigens that are not detectable in hepatoma cells are localized in hypersensitive to nucleases chromatin regions buy not in actively transcribed ones.

[Intranuclear localization of hepatoma chromatin antigens not detected in liver chromatin].

Localization of malignant cell antigens which are not detected in the liver chromatin was investigated by antibodies to chromatin of Zajdela ascite hepatoma and solid hepatoma 27. Antibodies to chromatin of Zajdela ascite hepatoma do not interact with nuclear matrix of both hepatoma and liver cells. Zajdela ascite hepatoma and solid hepatoma 27 chromatin regions hypersensitive to DNase I and endogenous Mg2+-dependent nuclease are enriched with immunogenic proteins.