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排序方式: 共有76条查询结果,搜索用时 15 毫秒
1.
A E Baranov N M Nadezhina L N Petrosian S G Pushkareva L V Evseeva T V Shishkova T A Nasonova V N Mal'tsev T A Vasina L D Feoktistova 《Antibiotiki i khimioterapii͡a》1991,36(10):38-40
Clinical efficacy of intravenous gentamicin in combination with oral use of gentamicin, ristomycin and nystatin was studied in 1977. In 1980-1984 two antiinfectious regimens were tested: intravenous administration of gentamicin in combination with total decontamination (oral use of gentamicin and nystatin) and selective decontamination (biseptol with nystatin of amphoglucamine). It was shown that the incidence of severe infections in the patients under the observation dropped against the controls. The incidence and spectrum of infectious complications in cases with acute myelodepressions were proved to depend on the intestinal autoflora inhibition. 相似文献
2.
Hydrogen evolution by subchloroplast preparations of photosystem II from pea and spinach, 总被引:9,自引:0,他引:9
Covalent coupling of bovine rhodopsin to CPG-thiol glass was used for separation of CNBr peptides. It is shown that cysteine residues 322 and 323 in the C-terminal cytoplasmic fragment of rhodopsin are modified with palmitic acid. 相似文献
3.
I I Il'in R Begam E V Mal'tsev I N Moiseev 《Arkhiv anatomii, gistologii i émbriologii》1986,90(2):53-57
Tetrapeptide tuftsin action on the activity of succinate dehydrogenase (SDG), malate dehydrogenase (MDG) and monoamine-oxidase (MAO) in microstructures of the neocortex, hippocampus and hypothalamus (supraoptic and paraventricular nuclei, retrochiasmic zone) has been investigated by means of histochemical methods. Simultaneously, pyruvate-, malate-, glutamate-, alfaketoglutamate-, succinate- and lactate-dehydrogenase activity in the neocortex and in the structures of the limbic system has been studied biochemically. SDG and MDG activity increases in neurons and glycocytes of all the hypothalamic formations mentioned. Changes in the activity of dehydrogenases in the hippocampus and neocortex under the same stimulation are less pronounced. MAO activity also increases in the nerve terminals converging on the bodies and dendrites of hypothalamic neurons and in the preterminal fibers of the neocortex, Tuftsin increases oxidative-reducing processes in various structures of the brain, but at the same time it possesses a predominant influence on the limbic system structures. 相似文献
4.
Synthesis of alpha-D-xylopyranosyl phosphate is carried out by a modified MacDonald method. 相似文献
5.
Bobryshev PIu Podvigina TT Mal'tsev NA Levkovich IuI Filaretova LP 《Rossi?skii fiziologicheski? zhurnal imeni I.M. Sechenova / Rossi?skaia akademiia nauk》2006,92(12):1483-1492
The effects of desensitization of capsaicin-sensitive neurons on the blood flow velocity in microvessels of the gastric muscular membrane were investigated before and after indomethacin (35 mg/kg) administration in adrenalectomized rats with or without corticosterone replacement (4 mg/kg sc) and in sham-operated animals. Desensitization of capsaicin-sensitive neurons was performed with neurotoxic dose of capsaicin (20 + 30 + 50 mg/kg sc) two weeks before the experiment. Adrenalectomy was created one week before the experiment. The in vivo microscopy technique for direct visualization of gastric microcirculation and analysis of red blood cell (RBC) velocity was employed. Indomethacin decreased the RBC velocity. Adrenalectomy by itself profoundly decreased the RBC velocity, whereas corticosterone replacement prevented this effect. Desensitization of capsaicin-sensitive neurons did not influence the RBC velocity in sham-adrenalectomized rats; however, it induced further fall of both basal and indomethacin-induced RBC velocity in adrenalectomized rats that was prevented by corticosterone. We conclude that glucocorticoid hormones have a beneficial effect on the blood flow velocity in microvessels of the gastric muscular membrane in rats with desensitization of capsaicin-sensitive neurons. 相似文献
6.
Mal'tsev VN Ivanov AA Mikhaĭlov VF Mazurik VK 《Radiatsionnaia biologiia, radioecologiia / Rossi?skaia akademiia nauk》2006,46(2):152-158
The information significance of the immunological indexes for the prognosis of gravity of course and of outcome of an acute radiation disease for the people after the exposure of ionizing radiation in clinically significant doses is studied. The value of indexes of the C-reactive protein contents, of the complement contents and of the titer of haemagglutinins in serum of a blood of 147 patients damaged at Chernobyl NPP accident as a result of external radiation gamma-exposure in combination with internal irradiation from the incorporation in an organism predominantly beta-emitting radionuclides were compared to the weight of acute radiation disease and its outcome (survival or loss). Was determined, that indexes of the contents of C-reactive protein in a peripheral blood during primary reactions on the irradiation (1-2 day after irradiation) and in latent period of disease (3-9 day after irradiation), and also titer of a complement on 3-9 day after irradiation can serve a source of information for the prognosis of probable gravity of a radiation injury and its outcome at irradiation of the man in clinically significant doses. 相似文献
7.
B V Pinegin N N Klemparskaia V N Mal'tsev V M Korshunov G A Shal'nova 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1984,(9):61-65
In experiments on 4000 noninbred and CBA mice the influence of the injections of alpha-, beta- and gamma-globusin, IgG and IgM, obtained from the sera of hemostimulated and intact mice, on the intestinal microflora after irradiation has been studied. The experiments have revealed that 3 subcutaneous or intraperitoneal injections of 1 mg per mouse, made 2, 24 and 48 hours after the irradiation of the animals with gamma-rays in a dose of 700 r, considerably reduce the intensity of the accumulation of opportunistic bacteria in the small and large intestines, commonly occurring in irradiated animals. A decrease in the number of lactobacteria is less pronounced. The preparations of globulin and IgG obtained from hemostimulated mice, i.e. enriched with normal tissue antibodies, have proved to be most effective. 相似文献
8.
N N Klemparskaya B V Pinegin G A Shal'nova V M Korshunov V N Mal'tsev I A Glad'ko T D Kuz'mina A M Ulanova N N Dobronravova V V Yermolov 《Journal of hygiene, epidemiology, microbiology, and immunology》1987,31(1):91-98
It has been demonstrated in experiments on 2160 CBA mice and mice of mixed breed, irradiated by LD90/30, that therapeutical administration (subcutaneous or intraperitoneal) of immunoglobulins - homologous (polyglobulin, IgG, IgM) or heterologous - polyglobulin, IgG (from human, equine, canine blood) repeated three times, i.e., 2, 24 and 48 hours after irradiation, not only induces longer survival, but also shows a normalizing effect on the commonly developing dysbacteriosis and increased amount of intestinal microflora and, in addition, leads to suppression of postirradiation endogenous infection. Enterobacteria, enterococci, staphylococci, yeasts, disappear from the small intestine or their quantity decreases substantially in treated irradiated mice in contrast to untreated irradiated mice. In the large intestine, the amount of these organisms decreases considerably while the content of lactobacteria increases; no microbes can be found in the internal organs and in blood (or their content is small). Other conditions being equal, homologous immunoglobulins are more efficient in comparison with heterologous, this applying also to preparations containing normal antibodies to tissues. 相似文献
9.
10.
A study of bacterial surface oligosaccharides were investigated among
different strains of Neisseria gonorrhoeae to correlate structural features
essential for binding to the MAb 2C7. This epitope is widely expressed and
conserved in gonococcal isolates, characteristics essential to an effective
candidate vaccine antigen. Sample lipooligosaccharides (LOS), was prepared
by a modification of the hot phenol-water method from which de-O-acetylated
LOS and oligosaccharide (OS) components were analyzed by ES-MS-CID-MS and
ES-MSnin a triple quadrupole and an ion trap mass spectrometer,
respectively. Previously documented natural heterogeneity was apparent from
both LOS and OS preparations which was admixed with fragments induced by
hydrazine and mild acid treatment. Natural heterogeneity was limited to
phosphorylation and antenni extensions to the alpha-chain. Mild acid
hydrolysis to release OS also hydrolyzed the beta(1-->6) glycosidic
linkage of lipid A. OS structures were determined by collisional and
resonance excitation combined with MS and multistep MSn which provided
sequence information from both neutral loss, and nonreducing terminal
fragments. A comparison of OS structures, with earlier knowledge of MAb
binding, enzyme treatment, and partial acid hydrolysis indicates a generic
overlapping domain for 2C7 binding. Reoccurring structural features include
a Hepalpha(1-->3)Hepbeta(1-->5)KDO trisaccharide core branched on the
nonreducing terminus (Hep-2) with an alpha(1-->2) linked GlcNAc
(gamma-chain), and an alpha-linked lactose (beta-chain) residue. From the
central heptose (Hep-1), a beta(1-->4) linked lactose (alpha-chain),
moiety is required although extensions to this residue appear unnecessary.
相似文献