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41.
Onishchenko GG Vasil'ev NT Maksimov VA Markov VI Merkulov VA Pistsov MN Berezhnoĭ AM Syromiatnikova SI Zubov VV 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》2003,(5):109-112
The virological, morphological, molecular biological and immunochemical study of the infective agent isolated from the patient with the symptoms of atypical pneumonia, hospitalized in the infectious department of the clinical hospital in Blagoveshchensk, was carried out. Thus the fact of the appearance of SARS virus on the territory of Russia was proved. The isolated infective agent, identified as coronavirus strain CoD, was partly characterized and deposited to the virus collection of the Center of Special Laboratory Diagnostics and Treatment of Quarantine and Exotic Infectious Diseases. 相似文献
42.
Kapustin DV Iagudaeva EIu Zavada LL Zhigis LS Zubov VP Iaroshevskaia EM Plobner L Leiser RM Brem G 《Bioorganicheskaia khimiia》2003,29(3):310-315
A composite sorbent based on porous glass beads modified with thin polyaniline coating was prepared by precipitating aniline polymerization in the presence of carrier particles. It was shown that the modification ensures the uniform coating of the inner surface of the carrier pores with the polymer layer approximately 70 A thick. It was shown that the resulting material retains the initial porosity of the carrier and is selective in the separation of nucleic acids and proteins. The polyaniline-coated sorbents were shown to be efficient for both the preparative DNA isolation from bacterial lysates and for analytical purposes, in particular, for studying DNA fragmentation during apoptosis proceeding under UV irradiation of cell lysates of colon carcinoma. The morphological and chromatographic characteristics of the new sorbent were demonstrated to be similar to those of the polyfluorobutadiene sorbent. 相似文献
43.
We studied the formation of a double-chained cationic monomer, N,N-diallyl-N-cetyl-N-dodecyloxycarbonyl methylammonium bromide, in a monolayer at the water-gas interface. An increase in surface pressure induced the transition from the liquid-expanded to liquid-condensed state with tail-packing and then head-packing of the monomer, which was accompanied by a decrease in the mobility of monomer molecules. An increase in the ionic strength of the subphase led to the compression of the layer, and addition of ethanol or detergents caused its dilution. Polyethylene glycol and polyacrylic acid induced the formation of a complex between the monomer and polymer. 相似文献
44.
By the example of 2,4-dichlorophenoxyacetic acid (2,4-D) assay by the inhibition of latex agglutination, new synthetic polymer microspheres for the conjugation with antibodies to 2,4-D and agglutinators based on ovalbumin and polyacrylamide were developed and characterized. The effect of various parameters (the concentration of reagents, the type and the degree of modification of the microsphere surface, and the nature of the carrier in the composition of the agglutinator) on the rate of agglutination and the maximal optical absorption observed during the reaction were studied by turbidimetry. The optimal parameters were found for the assay of 2,4-D by the inhibition of latex agglutination with turbidimetric registration of the results. 相似文献
45.
V Geetha Das Moumita Zarei Mehrdad VP Mayookha Harohally Nanishankar V G Suresh Kumar 《Glycoconjugate journal》2022,39(4):525-542
Glycoconjugate Journal - Glycosaminoglycans (GAGs) are bioactive polysaccharides or glycoconjugates found in the fish waste having significant health impacts. In the present study it has been... 相似文献
46.
Summary The hydrazide derivative of polyacrylate-coated glass was used for the immobilization of glucose oxidase (GO) from Penicillium vitale after periodate oxidation of its carbohydrate moiety. Periodate oxidation of the carbohydrate residues did not influence catalytic activity of the enzyme. Immobilized GO is extremely stable both at 4°C and 25°C for extended period. 相似文献
47.
48.
The effects of ethanol on neuronal network activity were studied in dissociated cultures of rat hippocampus. Exposure to low (0.25–0.5%) ethanol concentrations caused an increase in synchronized network spikes, and a decrease in the duration of individual spikes. Ethanol also caused an increase in rate of miniature spontaneous excitatory postsynaptic currents. Higher concentrations of ethanol eliminated network spikes. These effects were reversible upon wash. The effects of the high, but not the low ethanol were blocked by the GABA antagonist bicuculline. The enhancing action of low ethanol was blocked by apamin, an SK potassium channel antagonist, and mimicked by 1-EBIO, an SK channel opener. It is proposed that in cultured hippocampal networks low concentration of ethanol is associated with SK channel activity, rather than the GABAergic receptor. 相似文献
49.
S K Aleksander Iu V Lukin L M Fidler V P Zubov E A Terent'eva B M Mart'ianov 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1990,(6):84-88
IgG diagnosticum for measuring the concentration of 131I-labeled IgG antibodies to enteric antigen beta 1MA by the latex agglutination inhibition (LAI) test has been prepared on the basis of polyacrolein latexes. A method for the titration of anti-IgG antibodies with the use of the above diagnosticum has been developed, based on the late, agglutination (LA) test. The optimum conditions for the microtitration variant of the LA and LAI tests have been defined. High sensitivity, specificity and simplicity of analysis with the use of latex IgG diagnosticum have been demonstrated. The newly developed methods have been successfully used in laboratory trials of a new diagnostic radiopharmaceuticals for the assay of 131I-labeled antibodies in this preparation and for the detection of side effects of immunization on the recipients. 相似文献
50.
M I Mikha?lov S A Arakelov T E Vorozhbieva S V Zhavoronok S V Zubov 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1985,(7):71-74
A total of 300 blood serum samples, containing HBsAg and obtained from donors in three regions of the USSR (the RSFSR, the Uzbek SSR and the Moldavian SSR) differing in the level of HBsAg carriership, were studied for the presence of HBeAg and antibodies to this antigen in the passive hemagglutination (PHA) test and in the enzyme immunoassay (EIA). The occurrence of HBeAg was found to depend on the level of HBsAg carriership in the region. Thus, according to the EIA results, in Gorky, Kishinev and Tashkent HBeAg was detected, respectively, in 5.5%, 12.3% and 13.3% of serum samples, the level of HBsAg carriership in these cities being, according to the results of the PHA test, 1.4%, 5.0% and 9.0%. As shown by the results of EIA, the occurrence of HBeAg increased with the rise of the titer of HBsAg, while regarding the occurrence of antibodies to HBeAg the reverse relationship was observed. 相似文献