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Biomedical subjects

R Rainoldi

Publications and source records attributed to R Rainoldi.

16 recordsLinked to original sources
PubMed1983

Junctional pattern in the squamous metaplasia of the female trigone. A freeze-fracture study.

The junctional pattern of squamous metaplasia in the female trigone was studied by the freeze-fracture technique. Desmosomes were observed in all epithelial layers and varied in complexity from the basal to the superficial layers. Gap junctions were observed in the lower and upper epithelial layers. Tight junctions were detected occasionally in the superficial layer only, which appeared as maculae and did not form zonulae occludens. These data support previous suggestions that the squamous metaplastic epithelium is not waterproof and may interfere with the contraction-expansion mechanism of the bladder.

Adult↗
PubMed1982

Age-related frequency of viral lesions and their association with uterine cervical intraepithelial neoplasia.

Data collection forms of 50,165 routine smears were examined, and of these 47,577 were considered for this study. Viral cytological lesions (VL) were observed in 101 cases: of these, 19 were associated with cervical intraepithelial neoplasia. The total frequency of VL was 0.21%, with the peak in the teenager group (0.49%). The frequency of CIN among VL showed an overall frequency of 18.8%: this was null under 21 years of age and highest (50%) between 51 and 60 years of age. The frequency of VL in relation to clinical provenance of patients and the season of the year did not attain significance.

Adolescent↗
PubMed1982

Cytofilaments and fibroblast junctions in the benign proliferation of connective tissue.

Benign proliferative patterns of connective tissue in the dermatofibroma are investigated. Neoplastic fibroblasts are similar to so-called myofibroblasts. However, filaments are the prevalent filamentous component, while microfilaments and microtubules are present in limited amounts. In addition, no junctions are observed between adjacent cells. Typical mast cells and histiocytes are rarely observed. This report adds evidence of the similarity between the neoplastic and inflammatory patterns of fibroblastic proliferation, and suggests that the proliferation of the active fibroblast of the dermatofibroma (viewed as an intermediate cell between the common fibroblast and the myofibroblast) does not lead to the development of a homodynamic system. It also confirms that this tumor may exist in a stable condition.

Adult↗
PubMedDate not supplied

[Colpophotography].

Explore the source record for details and available documents.

Colposcopes↗
PubMedDate not supplied

Connective tissue regeneration after laser-CO2 therapy.

The ultrastructural pattern of fibroblasts involved in the healing process of laser-treated tissues has been investigated. This study has been performed on the uterine cervix, the epithelial abnormalities of which are frequently treated by laser. Observations carried out immediately and two and seven days after treatment, have demonstrated that: fibroblasts show an active and almost uniform pattern; myofibroblasts are not present; and macrophages are limited in number. This healing process is interpreted as a proliferative pattern of the connective tissue which differs from that of some benign tumors and of healing wounds.

Cervix Uteri↗