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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E.I., Volova T.G.
Заглавие : A comparative investigation of biodegradable polyhydroxyalkanoate films as matrices for in vitro cell cultures
Колич.характеристики :9 с
Место публикации : J. Mater. Sci.-Mater. Med.: KLUWER ACADEMIC PUBL, 2004. - Vol. 15, Is. 8. - P915-923. - ISSN 0957-4530, DOI 10.1023/B:JMSM.0000036280.98763.c1
Примечания : Cited References: 34
Предметные рубрики: DEGRADATION
POLY(3-HYDROXYBUTYRATE)
POLYESTERS
POLYMERS
Аннотация: The paper describes the production and investigation of flexible films made of high-purity polyhydroxyalkanoates (PHAs) - polyhydroxybutyrate [poly-(3HB)] and poly-3-hydroxybutyrate-co-poly-3-hydroxyvalerate [poly(3Hl3-co-3HV)], containing 4-30 mol % hydroxyvalerate. Poly(3HB-co-3HV) films have a more porous structure than poly-(3HB) films, which are more compact, but their surface properties, such as wettability and surface and interface energies, are the same. Sterilisation of the PHA films by conventional methods (heat treatment and gamma-irradiation) did not impair their strength. Cells cultured on PHA films exhibited high levels of cell adhesion. Cell morphology, protein synthesis and DNA synthesis were estimated by extent of H-3-thymidine incorporation into the animal cell cultures of various origins (fibroblasts, endothelium cells, and isolated hepatocytes) in direct contact with PHAs. The investigation showed that this material can be used to make matrices for in vitro proliferous cells. The investigated properties of poly-(3HB) and poly(3HB-co-3HV) films proved to be fundamentally similar. (C) 2004 Kluwer Academic Publishers.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E.I., Volova T.G.
Заглавие : A comparative investigation of biodegradable polyhydroxyalkanoate films as matrices for in vitro cell cultures
Место публикации : J. Mater. Sci.-Mater. Med.: KLUWER ACADEMIC PUBL, 2004. - Vol. 15, Is. 8. - С. 915-923. - 9. - ISSN 0957-4530, DOI 10.1023/B:JMSM.0000036280.98763.c1
Примечания : Cited References: 34
Предметные рубрики: DEGRADATION
POLY(3-HYDROXYBUTYRATE)
POLYESTERS
POLYMERS
Аннотация: The paper describes the production and investigation of flexible films made of high-purity polyhydroxyalkanoates (PHAs) - polyhydroxybutyrate [poly-(3HB)] and poly-3-hydroxybutyrate-co-poly-3-hydroxyvalerate [poly(3Hl3-co-3HV)], containing 4-30 mol % hydroxyvalerate. Poly(3HB-co-3HV) films have a more porous structure than poly-(3HB) films, which are more compact, but their surface properties, such as wettability and surface and interface energies, are the same. Sterilisation of the PHA films by conventional methods (heat treatment and gamma-irradiation) did not impair their strength. Cells cultured on PHA films exhibited high levels of cell adhesion. Cell morphology, protein synthesis and DNA synthesis were estimated by extent of H-3-thymidine incorporation into the animal cell cultures of various origins (fibroblasts, endothelium cells, and isolated hepatocytes) in direct contact with PHAs. The investigation showed that this material can be used to make matrices for in vitro proliferous cells. The investigated properties of poly-(3HB) and poly(3HB-co-3HV) films proved to be fundamentally similar. (C) 2004 Kluwer Academic Publishers.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T., Kiselev E., Vinogradova O., Nikolaeva E., Chistyakov A., Sukovatiy A., Shishatskaya E.
Заглавие : A glucose-utilizing strain, cupriavidus euthrophus B-10646: Growth kinetics, characterization and synthesis of multicomponent PHAs
Место публикации : PLoS ONE. - 2014. - Vol. 9, Is. 2. - ISSN 19326203 (ISSN) , DOI 10.1371/journal.pone.0087551
Ключевые слова (''Своб.индексиров.''): 3 hydroxybutyrate 3 hydroxyhexanoate 3 hydroxyvalerate copolymer--3 hydroxybutyrate 4 hydroxybutyrate 3 hydroxyvalerate copolymer--copolymer--gamma butyrolactone--glucose--hexanoic acid--poly(3 hydroxybutyric acid)--polyhydroxyalkanoic acid--polystyrene--propionic acid--unclassified drug--valeric acid--animal cell--article--bacterial growth--bacterium culture--cell adhesion--cell proliferation--crystal structure--culture optimization--cupriavidus--cupriavidus euthrophus--decomposition--elasticity--film--glucose utilization--kinetics--mechanics--melting point--mouse--nonhuman--nucleotide sequence--physical chemistry--polymerization--strength--synthesis
Аннотация: This study investigates kinetic and production parameters of a glucose-utilizing bacterial strain, C. eutrophus B-10646, and its ability to synthesize PHA terpolymers. Optimization of a number of parameters of bacterial culture (cell concentration in the inoculum, physiological activity of the inoculum, determined by the initial intracellular polymer content, and glucose concentration in the culture medium during cultivation) provided cell concentrations and PHA yields reaching 110 g/L and 80%, respectively, under two-stage batch culture conditions. Addition of precursor substrates (valerate, hexanoate, propionate, ?-butyrolactone) to the culture medium enabled synthesis of PHA terpolymers, P(3HB/3HV/4HB) and P(3HB/ 3HV/3HHx), with different composition and different molar fractions of 3HB, 3HV, 4HB, and 3HHx. Different types of PHA terpolymers synthesized by C. eutrophus B-10646 were used to prepare films, whose physicochemical and physical-mechanical properties were investigated. The properties of PHA terpolymers were significantly different from those of the P3HB homopolymer: they had much lower degrees of crystallinity and lower melting points and thermal decomposition temperatures, with the difference between these temperatures remaining practically unchanged. Films prepared from all PHA terpolymers had higher mechanical strength and elasticity than P3HB films. In spite of dissimilar surface structures, all films prepared from PHA terpolymers facilitated attachment and proliferation of mouse fibroblast NIH 3T3 cells more effectively than polystyrene and the highly crystalline P3HB. Copyright: © 2014 Volova et al.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E.I., Khlusov I.A., Volova T.G.
Заглавие : A hybrid PHB-hydroxyapatite composite for biomedical application: Production, in vitro and in vivo investigation
Место публикации : Journal of Biomaterials Science, Polymer Edition. - 2006. - Vol. 17, Is. 5. - С. 481-498. - ISSN 09205063 (ISSN) , DOI 10.1163/156856206776986242
Ключевые слова (''Своб.индексиров.''): biocompatibility--hydroxyapatite (ha)--phb-hydroxyapatite composite--polyhydroxyalkanoate (pha)--polyhydroxybutyrate (p(3hb))--properties--biocompatibility--differential thermal analysis--electron microscopy--free energy--interfacial energy--physical properties--surface properties--x ray analysis--biomedical application--physicochemical properties--polyhydroxyalkanoate (pha)--polyhydroxybutyrate (phb)--hydroxyapatite--hydroxyapatite--poly(3 hydroxybutyric acid)--polymer--biomaterial--hydroxybutyric acid--adhesion--animal cell--animal tissue--article--biomedicine--bone marrow cell--cell differentiation--cell growth--chemical structure--composite material--controlled study--crystallization--decomposition--electron microscopy--in vitro study--in vivo study--melting point--mouse--nonhuman--ossification--osteoblast--physical chemistry--priority journal--rat--strength--structure analysis--surface property--synthesis--temperature measurement--thermal analysis--tissue engineering--wettability--animal--biomechanics--bioremediation--bone prosthesis--cattle--cell culture--chemistry--cytology--differential scanning calorimetry--drug effect--human--materials testing--prostheses and orthoses--scanning electron microscopy--standard--wistar rat--murinae--animals--biocompatible materials--biodegradation, environmental--biomechanics--bone substitutes--cattle--cells, cultured--differential thermal analysis--durapatite--humans--hydroxybutyrates--materials testing--microscopy, electron, scanning--osteoblasts--prostheses and implants--rats--rats, wistar--surface properties
Аннотация: Samples of a hybrid composite of polyhydroxybutyrate (PHB), a biodegradable polyester, and hydroxyapatite (HA), with different PHB/HA ratios, have been prepared using mechanical-physical method. Electron microscopy, X-ray structure analysis and differential thermal analysis have been used to investigate the structure and physicochemical properties of the composite, depending on the PHB/HA ratio. The properties of the surface of the HA-loaded composite are significantly different from those of the pure polymer. As the HA percentage in the composite increases, free interface energy, the cohesive force, i.e., the strength of the adhesive bond between the composite surface and the water phase, and surface wettability increase. The HA percentage of the composite does not influence its melting temperature, but affects the temperature for the onset of decomposition: as the HA content increases from 0 to 10% (w/w), Td decreases from 260В°C to 225В°C. The degree of crystallinity of PHB/HA increases from 77% to 89% with an increase in the HA fraction from 10% to 50%. Functional properties of the composites have been investigated in vitro and in vivo. The best parameters of growth and differentiation of murine marrow osteoblasts are registered on PHB/HA samples containing 10% and 20% HA. In ectopic bone formation assay it has been proven that the hybrid PHB/HA composites can function as scaffolds and that bone tissue develops on their surface and in pores. В© VSP 2006.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zotina T.A., Trofimova E.A., Dementiev D.V., Bolsunovsky A.Y.
Заглавие : Accumulation of 241Am by crucian carp from food and water
Место публикации : Doklady Biological Sciences. - 2011. - Vol. 439, Is. 1. - С. 248-252. - ISSN 00124966 (ISSN) , DOI 10.1134/S001249661104017X
Ключевые слова (''Своб.индексиров.''): carassius--cyprinidae--americium--water--animal--animal food--article--carp--ecology--metabolism--physiology--pollutant--radioactive waste--water pollutant--americium--animal feed--animals--carps--ecology--environmental pollutants--radioactive waste--water--water pollutants, radioactive
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolmakov V. I., Kolmakova A. A.
Заглавие : Amino acids in prospective feeds for fish aquaculture: A review of experimental data
Место публикации : J. Sib. Fed. Univ. - Biol.: Siberian Federal University, 2020. - Vol. 13, Is. 4. - С. 424-442. - ISSN 19971389 (ISSN), DOI 10.17516/1997-1389-0332
Аннотация: Total dependence of aquaculture on imports of feeds can significantly compromise Russia's food supply security; hence the task of designing new domestic feeds is of primary importance. A major challenge of world aquaculture is providing fish with a balanced diet, in particular, with a well-balanced composition of amino acids. In this review, we analyze international publications on the composition of amino acids in fish feed over the last two years. We summarize the data on the amino acid composition of prospective food sources for fish aquaculture: agricultural crops, insects, annelids, higher crustaceans, animal waste, phytoplankton, zooplankton, macrophytes, and microorganisms. We performed a comparative analysis of the composition of amino acids in promising aquafeed sources and fish flour traditionally used for fish feeding. Based on the results, we conclude that each of the examined food sources can be used as a component of fish nutrition and offers realistic prospects for production of alternative feeds. To ensure high quality of fish aquaculture products, the priority should be given to development of technologies which allow to control amino acid feed composition during the production process with respect to fish species-specific needs. It is hoped that this review will be useful to researchers and practitioners involved in designing and producing new domestic aquafeed for fish. © Siberian Federal University. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sukhovol'skii V.G., Khlebopros R.G., Iskhakov T.R.
Заглавие : An optimization model of competition between species for resource.
Место публикации : Doklady. Biochemistry and biophysics. - 2003. - Vol. 390. - С. 171-173. - ISSN 16076729 (ISSN)
Ключевые слова (''Своб.индексиров.''): animal--article--biological model--comparative study--competitive behavior--computer simulation--ecosystem--evaluation--growth, development and aging--insect--physiology--plankton--population dynamics--population growth--quality control--species difference--validation study--animals--competitive behavior--computer simulation--ecosystem--insects--models, biological--plankton--population dynamics--population growth--quality control--species specificity
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Prokopkin I., Makhutova O., Kravchuk E., Sushchik N., Anishchenko O., Gladyshev M.
Заглавие : Assessing the reliability of quantitative fatty acid signature analysis and compound-specific isotope analysis-based mixing models for trophic studies
Место публикации : Biomolecules: MDPI, 2021. - Vol. 11, Is. 11. - Ст.1590. - ISSN 2218273X (ISSN), DOI 10.3390/biom11111590
Аннотация: The study of the trophic relationships of aquatic animals requires correct estimates of their diets. We compared the quantitative fatty acid signature analysis (QFASA) and the isotope?mixing model IsoError, based on the compound?specific isotope analysis of fatty acids (CSIA?FA), which are potentially effective models for quantitative diet estimations. In a 21?day experiment, Daphnia was fed a mixture of two food items, Chlorella and Cryptomonas, which were supplied in nearly equal proportions. The percentages and isotope values of the FAs of the algal species and Daphnia were measured. The IsoError based on CSIA?FA gave an estimation of algae consumption using only one FA, 18:3n?3. According to this model, the proportion of consumption of Chlorella decreased while the proportion of consumption of Cryptomonas increased during the experiment. The QFASA model was used for two FA subsets—the extended?dietary subset, which included sixteen FAs, and the dietary one, which included nine FAs. According to both subsets, the portion of consumed Chlorella decreased from Day 5 to 10 and then increased at Day 21. The comparison of the two model approaches showed that the QFASA model is a more reliable method to determine the contribution of different food sources to the diet of zooplankton than the CSIA?based mixing model. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovsky A.Y., Zotina T.A., Kosinenko S.V.
Заглавие : Assessment of 241Am accumulation rate by samples of algobacterial community of the Yenisei River.
Место публикации : Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections / translated from Russian. - 2002. - Vol. 385. - С. 374-376. - ISSN 00124966 (ISSN)
Ключевые слова (''Своб.индексиров.''): americium--fresh water--alga--animal--article--bacterium--kinetics--metabolism--nuclear reactor--phytoplankton--russian federation--algae--americium--animals--bacteria--fresh water--kinetics--nuclear reactors--phytoplankton--russia
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rodionova N.S., Bondar' V.S., Petushkov V.N.
Заглавие : ATP is a cosubstrate of the luciferase of the earthworm Fridericia heliota (Annelida: Clitellata: Oligochaeta: Enchytraeidae)
Место публикации : Doklady Biochemistry and Biophysics. - 2003. - Vol. 392, Is. 1-6. - С. 253-255. - ISSN 16076729 (ISSN) , DOI 10.1023/A:1026134628735
Ключевые слова (''Своб.индексиров.''): adenosine diphosphate--adenosine phosphate--adenosine triphosphate--luciferase--luciferin--magnesium--animal cell--article--controlled study--earthworm--hydrolysis--luminescence--nonhuman--adenosine diphosphate--adenosine triphosphate--animals--firefly luciferin--kinetics--luciferases--luminescent measurements--magnesium--oligochaeta--substrate specificity--animalia--annelida--clitellata--enchytraeidae--pheretima sieboldi
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M.I., Moskvicheva A.V.
Заглавие : Baikal invaders have become dominant in the upper Yenisei benthofauna.
Место публикации : Doklady Biological Sciences. - 2002. - Vol. 383, Is. 1-6. - С. 138-140. - ISSN 00124966 (ISSN)
Ключевые слова (''Своб.индексиров.''): fresh water--animal--article--fly--leech--mollusc--russian federation--animals--diptera--fresh water--leeches--mollusca--siberia
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E., Goreva A., Kalacheva G., Volova T.
Заглавие : Biocompatibility and resorption of intravenously administered polymer microparticles in tissues of internal organs of laboratory animals
Место публикации : Journal of Biomaterials Science, Polymer Edition. - 2011. - Vol. 22, Is. 16. - С. 2185-2203. - ISSN 09205063 (ISSN) , DOI 10.1163/092050610X537138
Ключевые слова (''Своб.индексиров.''): 14c products of polymer resorption--intravenous administration--microparticles--resorbable polyhydroxybutyrate--tissues of internal organs--3-hydroxybutyric acid--sup14/supc products of polymer resorption--adverse effect--drug-delivery systems--growth and development--high molecular weight--initial molecular weight--initial values--internal organs--intravenous administration--laboratory animals--local response--matrix--mean diameter--micro-particles--polymer degradation--polymer microparticles--preparation process--radioactivity level--residual content--resorbable--sustained-release--tail veins--wistar rat--animals--biocompatibility--degradation--histology--molecular weight--morphology--radiation--radioactivity--rats--tissue--poly(3 hydroxybutyric acid)--animal experiment--animal tissue--article--biocompatibility--concentration process--controlled study--degradation--drug delivery system--female--gel permeation chromatography--heart--kidney parenchyma--liver--lung parenchyma--molecular weight--nonhuman--organ culture--priority journal--radioactivity--rat--spleen--animals--animals, laboratory--biocompatible materials--drug delivery systems--female--infusions, intravenous--materials testing--microspheres--molecular weight--particle size--polymers--rats--rats, wistar--tissue distribution--animalia--rattus--rattus norvegicus
Аннотация: Specimens of 14C-labeled polymer of 3-hydroxybutyric acid, P(3-HB), with different initial molecular weights, were used to prepare microparticles, whose morphology was not influenced by the M w of the polymer. During the particle preparation process, P(3-HB) molecular weight decreased by 15-20%. Sterile microparticles (mean diameter 2.4 ?m) were injected into the tail veins of Wistar rats (5 mg/rat). The effects of the particles administered to rats were studied based on the general response of animals and local response of internal organ tissues and blood morphology; no adverse effects on growth and development of the animals or unfavorable changes in the structure of the tissues of internal organs were observed. Measurements of radioactivity in tissues showed that 14C concentrations are different in different organs, changing during the course of the experiment. The main targets for 14C-labeled microparticles were tissues of the liver, spleen, and kidneys. Comparison of radioactivity levels and residual contents of high-molecular-weight matrix in tissues suggested that the most rapid metabolism and degradation of P(3-HB) occurred in the liver and spleen. Gel-permeation chromatography showed that at 3 h after the microparticles were injected into the bloodstream, polymer degradation started in all examined organs, except the lungs; at 12 weeks, the M w of the polymer matrix was as low as 20-30% of its initial value. The presence of high-molecular-weight (undegraded) polymer in the tissues at 12 weeks after administration of the particles suggests that P(3-HB) is degraded in tissues of internal organs slowly and, hence, P(3-HB)-based microparticles can be used as sustained-release drug-delivery systems. В© 2011 VSP.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E.I., Voinova O.N., Goreva A.V., Mogilnaya O.A., Volova T.G.
Заглавие : Biocompatibility of polyhydroxybutyrate microspheres: In vitro and in vivo evaluation
Место публикации : Journal of Materials Science: Materials in Medicine. - 2008. - Vol. 19, Is. 6. - С. 2493-2502. - ISSN 09574530 (ISSN) , DOI 10.1007/s10856-007-3345-6
Ключевые слова (''Своб.индексиров.''): biocompatibility--drug delivery--fibroblasts--ion implantation--microspheres--polymer matrix--fibroblast cells--hydroxybutyric acid--intramuscular implantation--polyhydroxybutyrate--organic polymers--microsphere--poly(3 hydroxybutyric acid)--polymer--animal cell--animal experiment--animal tissue--article--biocompatibility--cell infiltration--controlled study--giant cell--implantation--in vitro study--in vivo study--inflammation--macrophage--mouse--nonhuman--priority journal--rat--3-hydroxybutyric acid--animals--biocompatible materials--cell survival--inflammation--materials testing--mice--microspheres--necrosis--nih 3t3 cells--polymers--rats--rats, wistar--tetrazolium salts--thiazoles--time factors--rattus norvegicus
Аннотация: Microspheres have been prepared from the resorbable linear polyester of ?-hydroxybutyric acid (polyhydroxybutyrate, PHB) by the solvent evaporation technique and investigated in vitro and in vivo. Biocompatibility of the microspheres has been proved in tests in the culture of mouse fibroblast cell line NIH 3T3 and in experiments on intramuscular implantation of the microspheres to Wistar rats for 3 months. Tissue response to the implantation of polymeric microspheres has been found to consist in a mild inflammatory reaction, pronounced macrophage infiltration that increases over time, involving mono- and poly-nuclear foreign body giant cells that resorb the polymeric matrix. No fibrous capsules were formed around polymeric microparticles; neither necrosis nor any other adverse morphological changes and tissue transformation in response to the implantation of the PHB microparticles were recorded. The results of the study suggest that polyhydroxybutyrate is a good candidate for fabricating prolonged-action drugs in the form of microparticles intended for intramuscular injection. В© 2008 Springer Science+Business Media, LLC.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitelson J.I., V B., Grigoriev A.I., Lisovsky G.M., Manukovsky N.S., Sinyak Y.u.E., Ushakova S.A.
Заглавие : Biological-physical-chemical aspects of a human life support system for a lunar base
Место публикации : Acta Astronautica. - 1995. - Vol. 37, Is. C. - С. 385-394. - ISSN 00945765 (ISSN)
Ключевые слова (''Своб.индексиров.''): animal--aquaculture--article--biomass--construction work and architectural phenomena--cyprinodontiformes--filtration--growth, development and aging--human--microbiology--microclimate--moon--nutritional value--photoperiodicity--plant--space flight--standard--tilapia--waste management--water management--wheat--animals--aquaculture--biomass--cyprinodontiformes--ecological systems, closed--facility design and construction--filtration--humans--life support systems--moon--nutritive value--photoperiod--plants, edible--space flight--tilapia--triticum--waste management--water microbiology--water purification
Аннотация: To create a life support system based on biological and physical-chemical processes is the optimum solution providing full-valued condidtions for existence and efficient work of people at a lunar base. Long-standing experinece in experimental research or closed ecosystems and their components allows us to suggest a realistic functional structure of the lunar base and to estimate qualitatively its parameters. The original restrictions are as follows: 1) the basic source of energy to support the biological processes has to be the solar radiation; 2) the initial amount of basic biological elelments forming the turnover of substances (C, O, H, P, K, N) has to be delivered from Earth; 3). Moon materials are not to be used in the biological turnover inside the base; 4) the base is to supply the crew fully with atmosphere and water, and with 90% (A scenario) or 40% (B scenario) of food. Experimental data about the plant productivity under the "Moon" rhythm of light and darkness allow us to suggest that the A scenario requires per one human: plant area - 40 m2 irradiated during the lunar day by 250-300 W/m2 PAR producing 1250 g of dry biomass a terrestrial day; a heterotrophic component of "biological incineration" of inedible plant biomass (800 g/day) including the aquaculture of fish to produce animal products and contaminating the environment less than birds and mammals, and the culture of edible mushrooms; a component of physical-chemical correction for the LSS envi ronment including the subsystems of: deep oxidation of organic impurities in the atmosphere and of water, organic wastes of human activity and that biological components (420 g/day) Co2 concentration in "Moon" nights, damping O2 in "Moon" days, etc. The stock of presotred or delivered from Earth substances (food additions, seeds, etc.) to be involved in biological turnover is to be about 50 kg/year per man. Increase of the mass of prestored substances per man up to 220 kg/year would reduce twice the plant area and consumed amount of radiant energy to exclude the components of "biological incineration" and physical-chemical destruction of organic wastes. В© 1995.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Remmel N.N., Kratasyuk V.A., Maznyak O.M., Inzhevatkin E.V., Nefedov V.P.
Заглавие : Bioluminescent analysis of intensity of pathological oxidative processes in cells of perfused rat liver after hyperthermia
Место публикации : Bulletin of Experimental Biology and Medicine. - 2003. - Vol. 135, Is. 1. - P43-45. - ISSN 00074888 (ISSN) , DOI 10.1023/A:1023489727703
Ключевые слова (''Своб.индексиров.''): bioluminescent analysis--controlled perfusion of isolated liver--hyperthermia oxidative stress--thiobarbituric acid reactive substance--animal experiment--animal model--animal tissue--article--bioluminescence--concentration (parameters)--controlled study--correlation analysis--female--hyperthermia--in vivo study--lipid peroxidation--liver metabolism--liver perfusion--male--nonhuman--oxidative stress--oxygen consumption--pathology--rat--thermal exposure--animals--female--hepatocytes--hyperthermia, induced--liver--luminescent measurements--male--oxidative stress--perfusion--rats--animalia
Аннотация: We studied the possibility of evaluation of the intensity of pathological oxidative processes in rat liver using an integral bioluminescent test with controlled perfusion of the isolated organ. The test revealed a significant correlation between the level of TBA-reactive products and bioluminescence intensity.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T. G., Shumilova A. A., Nikolaeva E. D., Kirichenko A. K., Shishatskaya E. I.
Заглавие : Biotechnological wound dressings based on bacterial cellulose and degradable copolymer P(3HB/4HB)
Место публикации : Int. J. Biol. Macromol.: Elsevier B.V., 2019. - Vol. 131. - С. 230-240. - ISSN 01418130 (ISSN) , DOI 10.1016/j.ijbiomac.2019.03.068
Примечания : Cited By :1
Ключевые слова (''Своб.индексиров.''): bacterial cellulose--composites--polyhydroxyalkanoates--3 hydroxybutyric acid 4 hydroxybutyric acid copolymer--actovegin--bacterial cellulose--cellulose--collagen type 1--copolymer--cytokeratin 10--cytokeratin 14--solcoseryl--unclassified drug--angiogenesis--animal cell--animal experiment--animal model--animal tissue--biochemical analysis--biocompatibility--burn--cell growth--controlled study--cutaneous parameters--differential scanning calorimetry--drug release--elemental analysis--female--fibroblast--histopathology--in vitro study--in vivo study--inflammation--mechanics--nonhuman--rat--review--wound healing--wound planimetry--x ray analysis
Аннотация: Hybrid wound dressings have been constructed using two biomaterials: bacterial cellulose (BC) and copolymer of 3-hydroxybutyric and 4-hydroxybutyric acids [P(3HB/4HB)] – a biodegradable polymer of microbial origin. Some of the experimental membranes were loaded with drugs promoting wound healing and epidermal cells differentiated from multipotent adipose-derived mesenchymal stem cells. A study has been carried out to investigate the structure and physical/mechanical properties of the membranes. The in vitro study showed that the most effective scaffolds for growing fibroblasts were composite BC/P(3HB/4HB) films loaded with actovegin. Two types of the experimental biotechnological wound dressings – BC/P(3HB/4HB)/actovegin and BC/P(3HB/4HB)/fibroblasts – were tested in vivo, on laboratory animals with model third-degree skin burns. Wound planimetry, histological examination, and biochemical and molecular methods of detecting factors of angiogenesis, inflammation, type I collagen, and keratin 10 and 14 were used to monitor wound healing. Experimental wound dressings promoted healing more effectively than VoskoPran – a commercial wound dressing. © 2019
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rodionova N.S., Bondar V.S., Petushkov V.N.
Заглавие : Ca(2+)-activator of the luminescence system of the earthworms Henlea sp., (Annelida: Clitellata: Oligochaeta: Enchytraeidae)
Место публикации : Doklady. Biochemistry and biophysics. - 2002. - Vol. 386. - С. 260-263. - ISSN 16076729 (ISSN)
Ключевые слова (''Своб.индексиров.''): calcium--divalent cation--edetic acid--luciferase--luciferin--metal--animal--annelid worm--article--chemistry--dose response--enzymology--genetics--kinetics--luminescence--metabolism--animals--calcium--cations, divalent--dose-response relationship, drug--edetic acid--firefly luciferin--kinetics--luciferases--luminescent measurements--metals--oligochaeta
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rogozin D.Y., Zykov V.V., Kalugin I.A., Daryin A.V., Degermendzhy A.G.
Заглавие : Carotenoids of phototrophic organisms in bottom sediments of meromictic Lake Shira (Siberia, Russia) as an indicator of past stratification
Место публикации : Doklady Biological Sciences. - 2011. - Vol. 439, Is. 1. - С. 228-231. - ISSN 00124966 (ISSN) , DOI 10.1134/S0012496611040077
Ключевые слова (''Своб.индексиров.''): carotenoid--chlorophyll--water--animal--article--chemistry--ecosystem--lake--metabolism--microbiology--photosynthesis--phototrophy--pigmentation--russian federation--sediment--animals--carotenoids--chlorophyll--ecosystem--geologic sediments--lakes--photosynthesis--phototrophic processes--pigmentation--russia--siberia--water--water microbiology
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sarangova A.B., Somova L.A., Pisman T.I.
Заглавие : Catalase activity as a potential indicator of the reducer component of small closed ecosystems
Место публикации : Advances in Space Research. - 1997. - Vol. 20, Is. 10. - С. 1945-1948. - ISSN 02731177 (ISSN)
Ключевые слова (''Своб.индексиров.''): carboxymethylcellulose--catalase--animal--article--bacillus--bacterial count--chlorella--culture medium--enzymology--growth, development and aging--metabolism--microclimate--paramecium--animals--bacillus--carboxymethylcellulose--catalase--chlorella--colony count, microbial--culture media--ecological systems, closed--paramecium
Аннотация: Dynamics of catalase activity has been shown to reflect the growth curve of microorganisms in batch cultivation (celluloselythic bacteria Bacillus acidocaldarius and bacteria of the associated microflora Chlorella vulgaris). Gas and substrate closure of the three component ecosystems with spatially separated components "producer-consumer-reducer" (Chl. vulgaris-Paramecium caudatum-B. acidocaldarius, two bacterial strains isolated from the associated microflora Chl. vulgaris) demonstrated that the functioning of the reducer component can be estimated by the catalase activity of microorganisms of this component. В© 1997 COSPAR. Published by Elsevier Science Ltd.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T.G., Barashkov V.A.
Заглавие : Characteristics of proteins synthesized by hydrogen-oxidizing microorganisms
Место публикации : Applied Biochemistry and Microbiology. - 2010. - Vol. 46, Is. 6. - С. 574-579. - ISSN 00036838 (ISSN) , DOI 10.1134/S0003683810060037
Ключевые слова (''Своб.индексиров.''): animalia--bacteria (microorganisms)--cupriavidus necator--pseudomonas carboxydohydrogena
Аннотация: The study was conducted to determine the biological value of proteins synthesized by hydrogen-oxidizing microorganisms-the hydrogen bacteria Alcaligenes eutrophus Z1 and Ralstonia eutropha B5786 and the CO-resistant strain of carboxydobacterium Seliberia carboxydohydrogena Z1062. Based on a number of significant parameters characterizing the biological value of a product, the proteins of hydrogen-oxidizing microorganisms have been found to occupy an intermediate position between traditional animal and plant proteins. The high total protein in biomass of these microorganisms, their complete amino acid content, and availability to proteolytic enzymes allow for us to consider these microorganisms as potential protein producers. В© 2010 Pleiades Publishing, Ltd.
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