[The role of immune placental inflammation in the genesis of complicated pregnancy].

Immune inflammation is a typical pathophysiological process caused by exogenous and endogenous factors. Fibrinoid necrosis and cell infiltrations are the morphological features of tissue lesion caused by immune inflammation. Tissue lesion in immune inflammation may be connected with immune complex (IC) formation or T-cell aggression. Lesion caused by antigen-antibody complexes develops as a result of direct IC formation in the tissue or their inflow from microcirculation. Potential sources of IC in the placenta are maternal blood flow, the formation of IC between maternal antibodies (AB) and embryonic antigens, and IC formation in fetal blood vessels. After sedimentation in the placenta, circulating IC can cross syncytiotrophoblast tissue with the participation of specific receptors to immunoglobulin Fc-fragment. The process of antifetal AB formation may start in the maternal organism, as a result of which it forms AB to embryonic and placental antigens, including paternal Rh, ABO, and HLA, and some trophoblast antigens. IC are able to initiate inflammatory process through interaction with the compliment system, through the activation of macrophages excreting cytokines (TNF-alpha and IL-1), and through influencing basophiles and thrombocytes (the liberation of vasoactive amines). Gestosis is associated with system inflammatory response with endothelial dysfunction as the main element. As the clinical features of gestosis do not develop before 20 weeks of pregnancy, its clinical manifestation is preceded by increased fetal blood-brain barrier permeability, elevation of the level of neurospecific proteins of fetal origin in maternal circulation, and the formation of specific IC causing acute endotheliosis.

[Physicochemical properties and specific structural features of protein-lipid composites of increased nutritive value]. / Fiziko-khimicheskie svoistva i strukturnye osobennosti belkovo-lipidnykh kompozitov povyshennoi pishchevoi tsennosti.

Fractional and component compositions of protein-lipid composites with increased nutritive value (compared to the protein preparations from which they were produced) were studied based on solubility and electrophoretic behavior. Differences in the fractional compositions of proteins and the amounts of hydrogen, ionic, and hydrophobic bonds were found. It was demonstrated that the water-, salt-, and alkali-soluble fractions of proteins changed during the manufacturing of the composites with soybean and wheat bran flour; the water- and alkali-soluble fractions, with protein concentrate from bran. Heterogeneity of the compositions and specific conformational features of composite proteins resulting from disulfide bonds were found. It was demonstrated that, during the manufacturing of composites, proteins of soybean flour aggregated (with the involvement of disulfide bonds), whereas protein products from wheat bran disaggregated. Breaks of interchain (wheat) or intrachain (concentrate) disulphide bonds accompanied the disaggregation. Overall the properties and specific structural features of the protein-lipid composites studied depended on the nature of the protein (soybean or wheat), type of initial preparations (flour or concentrate), and method of their production (emulsifying or drying).

[Galactography in the early detection of breast cancer]. / Galaktografiia v rannem dyiavlenii raka molochnoi zhelezy.

Pathologic discharge from the breast occurred in 308 out of 5000 (6.1%) apparently healthy women. Ductography was carried out in 237 such cases. The procedure revealed ductal ectasia in 96 patients (40.5%), ductal papillomatosis--38 (16.0%), intraductal papilloma--15 (6.8%) and cysts--in 16 cases. Cancer was suspected in 22 (9.3%) patients and in 14 (63.6%) of them tumor was diagnosed following excisional biopsy. On the whole, cancer was detected in 5.9% of the examined cases. In 13 out of 14 (92.9%), ductal carcinomas were either minimal (dia less than or equal to 1 cm) or noninvasive.