Twenty eight biopsy specimens of the cervix showed positive immunohistochemical staining when treated with an antiserum raised against an internal capsid antigen of human papillomavirus (HPV). Histological examination of adjoining sections from the same blocks showed a much wider range of abnormalities than those already described in association with HPV infection. The picture was usually diagn...

AIM To establish the staining characteristics of certain ion exchange resins in histological material, with a view to enabling confident differential identification. METHODS Various histological staining procedures were applied to selected pathological material and prepared agar blocks containing the cation exchange resin calcium polystyrene sulphonate and the anion exchange resin cholestyram...

We compared histological and immunological techniques in the early diagnosis of Pneumocystis carinii pneumonia in bronchial lavage fluid of steroid-treated rats. The rats were sacrificed weekly and lavage fluids were: (i) examined with cresyl echt violet and Giemsa stains; (ii) examined for P. carinii antigens by indirect fluorescent-antibody, counterimmunoelectrophoresis, and double-diffusion ...

Detection of occlusal caries with visual examination using ICDAS correlates strongly with histology under stereomicroscopy (SM), but dentin aspects under SM are ambiguous regarding mineral content. Thus, our aim was to test two null hypotheses: SM and microradiography result in similar correlations between ICDAS and histology; SM and microradiography result in similar positive (PPV) and negativ...

The objective of the present study was to adapt techniques for the histological processing of Dugesiidae cocoons for the study of embryo development. The cocoons were fixed with formalin, SUSA, Bouin or paraformaldehyde/glutaraldehyde and subsequently embedded in Paraplast or glycol methacrylate (Historesin). Paraplast embedding yielded reasonable results only after the cocoon was perforated or...

OBJECTIVE The aim of this study was to compare the lateral window and osteotome techniques for sinus lifting using histological and histomorphometric methods. MATERIALS AND METHODS In this clinical trial 10 patients (a total number of 14 sinus areas) who needed implant treatment in the atrophic posterior maxilla were enrolled. In all the cases the residual bone height between the sinus floor ...

Tumor hemodynamics of carcinogenic hepatocytes nodules, that is, low grade dysplastic nodules, high grade dysplastic nodules, early hepatocellular carcinomas (HCCs), and progressed HCCs, change during multistep dedifferentiation of the nodules. Morphometric analyses of inflow vessels of these nodules indicate that the portal veins of carcinogenic hepatocyte nodules monotonically decrease wherea...

E. A. CASPARY I953 geometrical optics, cf. Longsworth, 1947; Gosting & Morris, 1949) show a pronounced tendency to decrease as the fringe numberj increases, indicating a departure from the ideal form, defined by the probability integral. Calculations were made from the fringe j = 1, this would approximate to DA (diffusion constant determined by height-area method). The partial specific volume o...