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Biomedical subjects

F Bogdan

Publications and source records attributed to F Bogdan.

At least 19 recordsLinked to original sources
PubMed1975

Relationships between specialized cells, capillaries and intermediary cyto-fibrillary stroma. Note 6. The capillary stereotype and the factors which influence it.

The human skin and the mammary gland in the woman and the man--all of them ectoblastic-origin tissues, rich in stromal structures and belonging to the IIIrd step of Mârza's classification (Vth note) -- were investigated using the method of the microscopic conventional fields. The normal skin (Ist lot), the skin from the vicinity of basaliomatous nodules (II--A), of incipient basaliomatous nodules (II--B), of completely developed (II--C), of the skin during irradiation (II--D) and after irradiation (II--E), as well as the pemphigus skin were studied. In the woman the mammary gland was investigated in the little girl (GMF), in the adult nonpregnant woman (GMA), during the first trimester of pregnancy (GMG), during lactation (GML), during climacterium (GMM), in glandular carcinomas of the adult female (GMAC) and during menopause (GMMC). In the man, the normal gland (GMB) and the hypertrophied one (gynecomastia) (GMBH) were studied.

Adult↗
PubMedDate not supplied

The ultrastructural aspects of neoplastic myoepithelial cell in pleomorphic adenomas of salivary glands.

The purpose of this study has been to establish the major ultrastructural aspects of the myoepithelial cell and the myoepithelial-like cells proliferated in the pleomorphic adenomas of salivary glands. Thus, twelve benign pleomorphic adenomas of salivary glands have been studied by electron-microscopy transmission techniques. Our analysis has proved the proliferation of two major cellular populations, one of ductal type and one of myoepithelial type, which tried to reproduce the tubulo-acinar cytoarchitecture from the normal salivary glands. We have also noticed the key role of the so-called 'modified' myoepithelial cells from the periphery of the proliferating epithelial units in the genesis of the myxoid and chondromyxoid tumoral stromal areas. All these ultrastructural aspects have explained the great histological diversity of these salivary gland neoplasms as well as the key role of the myoepithelial cell in its histogenesis.

Adenoma, Pleomorphic↗
PubMedDate not supplied

[The importance of the pleoptophor in treating children with amblyopia].

The author presents her own experience in pleoptic treatment, using the occlusion and the exercises at the amblyophor, on 161 children, during a 12 years period of time. The results of the therapy lead to cure in 38% of cases, to improvement in 46% of cases and fail in 16% of cases. The indications, the preparation, the practical development of the treatment at pleoptophor are discussed; the reasons of the failures are carefully analyzed. It is emphasized that the good results are due to the tracking down of children with strabismus in kindergartens, to the application of the amblyopic preventive optical treatment and to pleoptic treatment maintained for years with monthly checkups to prevent relapses.

Amblyopia↗
PubMedDate not supplied

Study of chorial villi formation and evolution.

This paper presents the results of a qualitative and quantitative study of 76 human placentas from all ages of pregnancy, concerning the dynamic of development for each villous type (mesenchymal villi, stem villi, imature and mature intermediate villi and terminal villi). Percentage variations of villlous types emphasize the coorelation between the mechanisms for the villous development and loss, which provide the best villous poll required for every step in the evolution of human placenta.

Adolescent↗
PubMedDate not supplied

The study of the diaphoresis and leucinaminopeptidasis activity in experimental enteroviroses.

This paper studies, through histochemistry methods, the answer of some enzymes (Diaphoresis and Leuciaminopeptidasis) from intestinal wall structure to the viral aggression experimentally obtained. The most characteristic aspects occur at the intestinal mucous membrane level. The microbial aggression stimulates both macrophagous and immune processes, particularly those of humoral type. Thus, a cellular defence phagocyte and immune barrier with release of Ig and especially IgA is achieved subepithelial.

Animals↗
PubMedDate not supplied

Histoenzymatic changes at splenic level in experimental enterovirosis.

An experimental model was established to observe the lymphoplasmocytic and macrophage reaction at distance, in spleen, following the intraperitoneal administration of Coxsackie B3 virus. In the aftermath of the experimental viral aggression the thymo-dependent immune system did not seem altered, while the thymo-independent one was severely challenged. The immune reaction of the humoral type was accompanied by a stimulation of the macrophagous type-cells.

Animals↗
PubMedDate not supplied

The coexistence of atypical intraductal hyperplasias with breast carcinoma.

We present a study made during 4 years (1992-1996), which pursued the underlining of the atypical intraductal hiperplasias (A.I.D.H.) lesions, met isolated or in the association with mamar carcinoma. Our study included a 188 number of the breast tumors, among: in the 23 cases we established the existence of the modification by the A.I.D.H, type at the fibrocystics disease associated or not with the other benign diseases of the breast (fibroadenosis, intraductal papiloma) and in the 63 cases there were the modification by the AIDH associated with in situ or invasiv carcinoma. Epithelial hyperplasia is frequently associated with the fibrocystic changes, being included in the category of fibrocystic or proliferating modifications. The synonymous terms used for the epithelial hyperplasia are the hiperplazia ductala, or the epitelioza, or the papilomatosis The last two are suggested by the proliferation possibility (papillary or linear) of the epithelial or the mio-epithelial cells. Regardless of the microscopic aspect of the lesion, that should be acknowledged and treated as it is, due to the increased risk of the development of a carcinoma later on, and also due to the ratio of association between the modification and the mammary carcinoma. The risk of occurrence of subsequent carcinoma is augmented in the presence of the epithelial atipii and also increases in the presence of a mammary carcinoma at the relatives of the first rank (1.3). In this context, the importance of the differential diagnosis between the simple intraductal hyperplasia and the atypical one, the difficulty of differentiation from intraductal carcinoma in some cases, and finally the association with an increased risk of subsequent occurrence of carcinoma, constitute into sufficient arguments to consider this topic separately.

Adenocarcinoma↗