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This article analyzes the indices of oxidative stress activity in freshwater bivalve Dreissena polymorpha (Pallas) from areas of the Rybinsk Reservoir with different levels of anthropogenic load. The following indices are studied: activity of catalase (CAT), glutathione reductase (GST), glutathione S-transferase (GST) and content of reduced glutathione (GSH), malondialdehyde (MDA), and carbonyl groups of oxidized proteins (CG). During the study period (July), the indices of oxidative stress of zebra mussel D. Polymorpha did not differ between sexes. Mussels that were collected in the most polluted part of the reservoir, the Sheksna stretch near the industrial complex of the city of Cherepovets, had a higher activity of catalase, glutathione S-transferase, and glutathione reductase and a higher content of malondialdehyde than zebra mussels taken from the relatively clean Volga stretch. 相似文献
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alpha-Adrenoceptor agonists of both main groups, i. e. arylalkylamines and imidazolines, have a pronounced radioprotective effect. Their chemical analogs, which fail to stimulate alpha-adrenoceptors, do not protect mice. The effect of phenylephrine, adrenaline, and noradrenaline comes into play via alpha 1-adrenoceptors and that of clonidine, via alpha 2-adrenoceptors and also via alpha 1-adrenoceptors. Adrenoceptor agonists can probably manifest their radioprotective action via both subtypes of alpha-adrenoceptors. Possible intracellular mechanisms of the radioprotective action are discussed. 相似文献
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Smolyakova E. V. Skoblov Yu. S. Skoblova N. A. Agapova O. Yu. Ambatiello L. G. Klimova A. A. Kuznetsova T. V. Masenko V. P. Nistor S. Yu. Rvacheva A. V. Chazova I. E. Zykov K. A. 《Russian Journal of Bioorganic Chemistry》2019,45(2):129-134
Russian Journal of Bioorganic Chemistry - A radioligand-based method was proposed for quantifying the binding activity of β1-adrenergic receptors (ARs) on the surface of human T lymphocytes.... 相似文献
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Klimova RR Masalova OV Semenova TB Grebencha SV Abramova NB Kushch AA 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1999,(6):76-80
The possibility of using monoclonal antibodies (McAb), obtained earlier, for the detection of herpes simplex virus (HSV) in clinical specimens taken from sick and infected persons was studied. The examination of 90 persons revealed that the mixture of McAb 4A and 2C could effectively detect the presence of HSV antigen in the indirect immunofluorescence assay (IFA) directly in cells contained in cytological preparations (smears, scrapes, impressions) obtained from different organs of patients. The search of optimum combinations of McAb for the detection of HSV antigens by the method of the solid-phase enzyme immunoassay (EIA) was carried out. This study, made on purified HSV used as an experimental model, revealed that the maximum sensitivity could be achieved with the use of two McAb (4f6 and 7c4) out of three McAb (4f6, 7c4 and 3d10). The approbation of both variants of EIA on clinical specimens taken from 99 patients (blood clots, seminal fluid, scrapes of cervical canal cells, peripheral blood lymphocytes) showed that the addition of McAb 3d10 made it possible to detect 8 more positive specimens. 754 specimens from 337 patients were studied with the use of McAb-based EIA, and in 204 of these patients (61%) HSV antigen was detected. The results obtained with the use of our McAb were compared with the data obtained with certified commercial test systems. The coincidence of the EIA data with those obtained with the use of the Murex Wellcozyme HSV test system (UK) was registered in 75% of cases (in 15 out of 20 cases). The coincidence of the IFA data with those obtained with the use of the Sanofi test system (France) was observed in all 19 cases (100%). 相似文献
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Bondarenko VM Vershinin AE Kucherskiĭ VM Mitkov VG Klimova NE Kurbatova EA Egorova NB 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》2004,(3):39-43
A complex of clinical and laboratory examinations of patients with bacterial chronic prostatitis was carried out. The patients were divided into two groups: 55 patients treated by the method of immunotherapy and 20 patients (controls) undergoing basic therapy. Immunotherapy was carried out with the use of polycomponent vaccine VP-4 containing Staphylococcus aureus, Klebsiella pneumoniae, Proteus vulgaris and Escherichia coli antigens. Vaccinal therapy was indicated in cases with infection focus associated with opportunistic bacteria, a prolonged torpid course of prostatitis and when different schemes of etiotropic therapy proved to be ineffective. The vaccine was introduced in 4 or 5 subcutaneous injections at an interval of 5-7 days. The study revealed that in cases of chronic prostatitis accompanied by microecological and immune disturbances the use of complex therapy allowed to achieve good clinical and laboratory results in 91% of the patients. In the patients undergoing immunotherapy the elimination of opportunistic bacteria from the urogenital tract and the restoration of affected microflora occurred. 相似文献
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Medzhidova MG Adueva SM Fedorova NE Klimova RR Vorontsova IuN Degtiareva MV Degtiarev DN Volodin NN Aliamovskaia GA Keshishchian ES Malakhova MV Il'ina EN Govorun VM Zemlianaia NIu Shcherbo SV Asadi Mobarkhan SM Asadi Mobarkhan AKh Kushch AA 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》2005,(5):74-80
A total of 111 children suspected for herpesvirus infection were examined. In blood and urine samples the infectious activity of herpes simplex virus (HSV) and cytomegalovirus (CMV) was detected by the rapid culture method (RCM) and the presence of virus DNA--by the polymerase chain reaction (PCR). HSV and/or CMV were detected by two laboratory methods in 57 examined children (51%). Of these, in 18 children (16.2%) both HSV and CMV were detected. The coincidence of the results of the detection of HSV and CMV by these two methods was observed in 72.4% and 75.2% of cases respectively. The comparative analysis of the detection of anti-CMV IgG and IgM was made with the use of commercial test systems produced bythe following manufacturers: "Vector-Best" and "Bioservice" (Russia), "HUMAN" and "Boehringer" (Germany). The effective detection of both anti-CMV (IgG and IgM) was ensured by the test systems "Boehringer". The test system "Vector-Best" for anti-CMV IgG proved to be not inferior as regards sensitivity and specificity. The German test systems demonstrated the highest specificity in the detection of low-avid antibodies. The data obtained in this study indicate that the detection rate of HSV and CMV markers in newborns and infants suspected for herpesvirus infection was, on the average, 20 - 40%. Reliable diagnostics in newborns and infants is possible only in the presence of the combination of at least 2 serological tests (the determination of antivirus IgM and IgG avidity) and 2 methods for the detection of direct herpesvirus markers (PCR and RCM). 相似文献