The biology of sialic acids has been an object of interest in many models of acquired and inherited skeletal muscle pathology. The present study focuses on the sialylation changes in mouse skeletal muscle after invasion by the parasitic nematode Trichinella spiralis (Owen, 1835). Asynchronous infection with T. spiralis was induced in mice that were sacrificed at different time points of the muscle phase of the disease. The amounts of free sialic acid, sialylated glycoproteins and total sialyltransferase activity were quantified. Histochemistry with lectins specific for sialic acid was performed in order to localise distribution of sialylated glycoconjugates and to clarify the type of linkage of the sialic acid residues on the carbohydrate chains. Elevated intracellular accumulation of α-2,3- and α-2,6-sialylated glycoconjugates was found only within the affected sarcoplasm of muscle fibres invaded by the parasite. The levels of free and protein-bound sialic acid were increased and the total sialyltransferase activity was also elevated in the skeletal muscle tissue of animals with trichinellosis. We suggest that the biological significance of this phenomenon might be associated with securing integrity of the newly formed nurse cell within the surrounding healthy skeletal muscle tissue. The increased sialylation might inhibit the affected muscle cell contractility through decreased membrane ion gating, helping the parasite accommodation process., Rositsa Milcheva, Dimitar Ivanov, Ivan Iliev, Russy Russev, Svetlozara Petkova, Pavel Babál., and Obsahuje bibliografii
Birth rate regulation is a major problem of modern medicine. Unfortunately, frequency of artificial abortions is still high not only in developing, but also in developed countries. Abortion results in severe gynecologic and endocrine complications in the woman’s body (Alieva, 2001). Use of intrauterine devices (IUDs) is a most effective method of contraception. A great number of studies in the field of utilization and possible complications of IUDs revealed the occurrence of inflammatory diseases of small pelvis organs (IDSPO). Andizhan (Uzbekistan). Duration of patients’ follow-up ranged 40 days to 6 months. Women did not have contraindications for IUDs according to WHO medical eligibility criteria. Blood was a material for study; it was taken in 40 days, 3 and 6 months following IUD insertion. After insertion of copper IUDs to women, a cytokine cascade was studied in dynamics. in this test system made 4 pg/ml. During the study, the women of the test group showed increased proinflammatory cytokines. The further study of vaginal smears confirmed development of bacterial vaginoses in them that suggests a relation of complications due to IUDs with imbalance of the cytokine cascade. Elevated serum concentration of cytokines was revealed in women with IUDs already on the first days of their application. European Medical, Health and Pharmaceutical Journal ISSN 1804-5804 Sharp increase in IL-1 on days 40 and 90 after insertion of IUDs is associated with presence of complications in the form of expulsions and possible development of inflammatory diseases of small pelvis organs., Umida Yusupova, Farida Ayupova, and Literatura