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181.
N V Rudometova T B Efimova N V Glazova L V Dmitrenko 《Prikladnaia biokhimiia i mikrobiologiia》1992,28(5):694-697
The isothermic adsorption of microbial and animal enzymes on carboxyl and sulpha-cation exchange resins was studied. The adsorption isotherms are curves with a maximum. The adsorption of alpha-amylase was studied in the presence of organic solvents. It was found that organic solvents influenced the isothermic adsorption of alpha-amylase, which is associated with changes in the interactions between protein molecules in solution. The adsorption system was in equilibrium in all the cases. 相似文献
182.
G D Kobrinski? I F Barinski? I V Efimova L K Eremian 《Biulleten' eksperimental'no? biologii i meditsiny》1982,93(1):62-64
A study was made of the effect of cholera vibrio neuraminidase and mouse interferon on the development of Rauscher's leukemia in BALB/c mice. It was shown that administration of 1500 units interferon to mice 4 hours before and 5 days after inoculation of Rauscher's leukemia virus prolonged the animals' lifespan. Preliminary treatment of the virus-containing material with neuraminidase prevented the death of one third of the experimental animals. Meanwhile the remainder of the animals inoculated with the same virus showed a longer lifespan. Combined use of both the preparations proved the most effective, enabling the prevention from death of 90% of the experimental animals. The mechanism of antiviral action of neuraminidase and interferon is discussed. 相似文献
183.
A. S. Minich I. B. Minich N. S. Zelen’chukova R. A. Karnachuk I. F. Golovatskaya M. V. Efimova V. S. Raida 《Russian Journal of Plant Physiology》2006,53(6):762-767
The effects of low intensity red luminescent radiation emitted by the polyethylene light-correcting film due to the conversion of UV-A radiation on Arabidopsis thaliana (L.) Heynh. morphogenesis and hormonal balance were studied. Wild-type Ler plants and two mutants, hy3 and hy4, displaying disturbances in the synthesis of phytochrome B and cryptochrome 1, respectively, were compared. In wild-type and hy4 plants grown under the light-correcting film, growth and development were substantially accelerated, whereas, in hy3 plants, they were retarded. These changes were correlated with changes in the levels of endogenous hormones, both growth activators and inhibitors. We concluded that low intensity red luminescent radiation affected the plant hormonal balance. In its turn, the changes in the hormone ratios, growth stimulators and inhibitors, affected the rate of plant growth and their productivity. 相似文献
184.
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186.
S A Chepurnov N E Chepurnova V Iu Ionidi E V Efimova V M Poliakov S V Marechek 《Nauchnye doklady vysshe? shkoly. Biologicheskie nauki》1991,(1):99-102
The integral rat brain temperature was measured by radiothermoscope after intranasal instillation of thyroliberin in a dose 400 mkg. The recording increase of temperature lasted during two hours after instillation. This phenomenon is based both on the direct action of thyroliberin and on its capacity to stimulate the induction of other regulatory peptides. 相似文献
187.
Danilova E. D. Litvinovskaya R. P. Zlobin I. E. Kolomeichuk L. V. Murgan O. K. Sauchuk A. L. Khripach V. A. Kuznetsov V. V. Efimova M. V. 《Doklady. Biochemistry and biophysics》2022,504(1):123-127
Doklady Biochemistry and Biophysics - The effect of polymetallic stress (Mn2+, Cd2+, Cu2+, Ni2+, Zn2+, Pb2+, and Al3+) of different duration and intensity on the endogenous brassinosteroids (BS)... 相似文献
188.
Molecular mechanisms of the influence of flavonoids on the voltage gating of a single alpha-hemolysin channel in planar lipid membranes are studied. It is shown that the addition of flavonoids hydroxylated in position 5 of the A-ring and in position 4' of the B-ring into bilayer bathing solution shifts the voltage dependence of channel switching from high- to low-conductance states to voltages nearer zero. It is concluded that the effect is likely to be attributed to a specific interaction of at least three flavonoid molecules with the voltage sensor of an alpha-hemolysin pore. Possible flavonoid binding sites and identification of amino acid residues included into the voltage sensor domain of the alpha-hemolysin channel are discussed. 相似文献
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190.
Clones of a marine haptophyte microalga Tisochrysis lutea (Bendif et Probert, 2013) from Atlantic and tropical Pacific waters are model objects for basic and applied research and are widely used in aquaculture, as well as the cosmetic, pharmaceutical, and food industries. The article reports species identification and determination of the phylogenetic position of the first and only Russian T. lutea clone isolated from the coastal waters of the northern Sea of Japan. 相似文献