Roentgeno-endovascular dilation of aortic coarctation]

The potentialities of roentgeno-endovascular dilation (RED) of various types of coarctation and aortic stenoses were studied in 12 patients aged 9 to 27. RED was performed by two Grüntzig's catheters with balloons not less than 7 mm in diameter. The main criterion of RED efficacy was a gradient of systolic pressure which was on the decrease by 25-40 mm Hg after using one catheter, and by 40-70 mm Hg after using both catheters. The same method was applied to dilation of stenosis of the abdominal aorta. The proposed method is low invasive and most effective in patients with aortic segmentation of segmental type, and makes it possible to avoid in many cases surgical intervention.     

X-ray endovascular surgery of the right ovarian vein syndrome]

The author analyzes the causes of the disorders in the urodynamics and retention changes in the upper urinary routes of 43 infertile women who suffered from disordered venous reno-ovarian circulation. In chronic phlebostasis of the pelvic organs a compensatory varicose dilatation of the right ovarian vein, mediating the hemodynamic decompression of the venous bed of internal genitals, is responsible for the development of the venous compression syndrome of the right ureter. To correct the vasourethral conflict roentgenoendovascular embolization of the left ovarian vein was carried out. In the remote postembolization period 40 women presented without pain or urodynamic disorders and with normal urinalyses, in 3 women the right ureter dilatation persisted but had not progressed.     

Intraosseous veins of the maxilla in the newborn]

The intraosseous veins of the maxilla in newborns grow larger with enlargement of the bone and become disposed in three mutually perpendicular planes. The venous plexus of the alveolar process is large. V. v. vallares are thin and interlace forming a network. The veins of interdental septum are well pronounced. The thick venous network of the periosteum and the mucous membrane of the nasal surface of the palatine process includes the vessels transversal and longitudinal to the nasal septum. The venous loops of the incisor part are of triangular, pentagonal and polygonal shape. The veins of the palatine process are connected with 3-4 large vessels falling into the vessels of the tear duct. The transversal and oblique veins of the oral surface of the palatine process are connected with large vessels disposed in parallel to the medial structure of the hard palate. The venous network of the incisor part of the bone is restricted by densified small arc-shaped plexuses. Two-three largest veins lie sagittally and, connected by arc-shaped anastomoses, are tributaries of the vessels of the palate bone, soft palate and pharynx.     

Histology and histochemistry of the seal ovaries and the age-related changes in the ovaries of the Greenland seal]

Histological and histochemical methods were used to study the ovaries of Greenland seal (Pagophoca groenlandica) from birth-time up to 30 years of age and mature females of Phoca vitulina and Erignathus barbatus. The ovary of the new-born Greenland seal has fetal medullary substance which is a provisory endocrinous gland producing not only sex hormones but also corticosteron. In other species of seals the intestinal cells of the medullary substance are the equivalent of this gland. Within 3-4 weeks after birth the reduction of the fetal medullary substance is completed, it is substituted by the connective tissue and the ovary acquires its typical structure. The rest of the fetal medullary substance is in the depth of the cortex and near the infundibulum of the ovary as lipofuscincontaining cells. When the maturation period approaches, the process of the follicle atresia regularly changes: the epithelium dies quicker, and the multiplication of intestinal cells increases. The ovaries of seals are rich in interstitial cells. Their amount cyclically changes. The cells producing steroid hormones always well hydrolize AS naphthyl-phosphates, the reaction with glycerophosphate is more variable. The connective tissue is poor in acid mucopolysaccharides, its amorphous substance in the ovary cortex is rich in protein. Senile changes of the ovary are noticed in the seal beginning from 20 years of age.     

Valvular apparatus of the cardiac veins in the pig]

The valvular apparatus of the subepicardial venous network has been studied in reflected light of the diaphragmated source. Structure, form and variations of the valvular apparatus have been determined in different parts of the coronary sinus, in the large cardiac vein, in the median cardiac and in the posterior veins of the left ventricle and their main branches.     

Transvaginal echography in the diagnosis of endometrioid cysts of the ovaries]

Research into the value of transvaginal echography in the diagnosis of endometrioid ovarian cysts has shown that this pathology is characterized by the presence of a round or oblong formation, filled with small-dotted suspension of mean or high echogeneity, by a dense hyperechogenic component of small sizes and wall thickening up to 0.2-0.3 cm. The accuracy of diagnosis of endometrioid ovarian cysts was 92.3%.     

The effect of the ovarian appendage on ovarian function]

Bilateral parovarian pathology experimentally induced in 15 female rabbits decreased the hormonal activity of their ovaries as manifested in shrinking of both ovaries, reduction of the follicles number, lowering of the level of blood estradiol and progesterone, alteration of a colpocytological pattern.     

Localization and detection of ovarian follicular fluid protein in follicles of human ovaries.

Human ovarian follicular fluid protein has been partially purified and the active fraction designated as hGF2. Using specific polyclonal antiserum to hGF2, it was observed to be localized immunohistochemically in the granulosa cells of medium but not large follicles of human ovary. The hGF2 levels were estimated by ELISA in serum and follicular fluid of 10 gonadotropin-stimulated women recruited for IVF-ET programme. The results revealed a 3-fold increase in the concentration of hGF2 in follicular fluid compared to that in serum of these patients. These data indicate that the protein is secreted by granulosa cells and plays an important role in the regulation of follicular maturation and ovulation.     

Pattern of arterial supply to the ovaries in Nili-Ravi buffaloes: Relationship with the distribution of ovarian structures

Reproductive tracts of 12 heifers and 18 adult buffaloes were collected from a slaughter house to study gross ovarian morphology and the distribution of follicles and corpora lutea on the surface of the ovary relative to the pattern of the arterial supply. Mean weight and volume of the ovaries were 3.8 ± 0.3 g and 4.08 ± 0.07 cm³, respectively, and were higher in adult buffaloes, but the difference was a function of body weight. Seventy percent of the ovaries were supplied by a single artery while the remaining 30% received two branches of the ovarian artery. Regardless of the position of entry of a single branch, ovarian follicles were located more frequently in the central (41.1%) than in medial (30.7%) or lateral portions of the ovary (28.2%). In ovaries supplied by two branches of the ovarian artery, follicles were distributed more uniformly on the ovarian surface. Number of follicles on the ovarian surface tended to increase when one of these branches was medial in position. Corpora lutea were observed more frequently in the part(s) of the ovary adjacent to the point of arterial entry regardless of the number of branches. Presence of a corpus luteum on the ovary had a negative effect on follicular development. The data suggested a possible relationship of the ovarian activity of the buffaloes with the pattern of arterial supply to the ovaries. Pattern of arterial supply might be contributing to the growth of the follicles, possibly by either saving them from atresia or by stimulating their growth.     

Removal of the uterus and ovaries and the opinion of women postoperatively]

Forty five women undergoing total hysterectomy were interviewed after surgery. The investigators were interested in their opinion on the outcome of performed surgery. One year later, a questionnaire was mailed to these women which included questions about their physical status, psychologic well-being and everyday activities. Fear against cancer, physical health and psychologic well-being as well as sexual activity persisted for one year or longer following surgery. The number of questioned women reporting worsening of sexual relations with their partners and emotional disturbances increased one year after hysterectomy. Moreover, a significant increase in the number of women who had informed their relatives about surgery was also noted.     

The alterative effect of isobutylmethylxanthine in hypofunctional human neutrophil chemotaxis

The effects of isobutylmethylxanthine on the locomotion of chemotactically normofunctional and hypofunctional human neutrophils were compared. The hypofunctional cells were obtained from the peripheral blood of selected subjects with juvenile periodontitis. The chemically oriented migration (i.e. chemotaxis) of these cells was less than 50% of normal. Isobutylmethylxanthine caused a doubling of the CHO.Met.Leu.Phe.OH-induced chemotactic responsiveness of hypofunctional cells, while no effect of the drug was detected with respect to random migration. Isobutylmethylxanthine had no effect on chemotaxis or random migration in the normofunctional cell populations. Since isobutylmethylxanthine inhibits cAMP catabolism, these data suggest that the cyclic nucleotide plays a role in intracellular transduction mechanisms which affect chemotaxis.