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Biodistribution of nanodiamonds in the body of mice using EPR spectrometry / E. Inzhevatkin [et al.] // IET Sci. Meas. Technol. - 2019. - Vol. 13, Is. 7. - P984-988, DOI 10.1049/iet-smt.2018.5594. - Cited References:32. - This work was supported by the Russian Foundation for Basic Research (project no. 16-04-00999). . - ISSN 1751-8822. - ISSN 1751-8830

РУБ Engineering, Electrical & Electronic
Рубрики:
DRUG-DELIVERY
   DETONATION NANODIAMONDS
   NANOMATERIALS
   DOXORUBICIN
Кл.слова (ненормированные):
blood -- biomedical materials -- kidney -- lung -- detonation -- diamond -- nanomedicine -- liver -- muscle -- cellular biophysics -- nanoparticles -- EPR -- imaging -- mice -- EPR spectrometry -- detonation NDs -- electron paramagnetic -- resonance spectrometry -- characteristic EPR signal -- initially injected -- NDs -- detonation -- femoral muscles -- blood -- spleen -- brain -- kidneys -- heart -- lungs -- liver -- biomaterials -- nanodiamonds -- organ homogenates -- nanoparticle concentrations -- inter-organ distribution -- time 2 -- 5 hour -- C
Аннотация: In vitro experiments proved the usefulness of electron paramagnetic resonance (EPR) spectrometry for detecting detonation nanodiamonds (NDs) in samples of biomaterials (blood and homogenates of organs of mice). A characteristic EPR signal (g = 2.003, Delta H similar or equal to 10 G) was detected in biomaterials containing NDs, and its intensity linearly increased at nanoparticle concentrations of between 1.6 and 200 mu g/ml. In vivo experiments demonstrated that EPR spectrometry was effective for monitoring the inter-organ distribution of NDs intravenously injected to mice. In 2.5 h after the injection of NDs, the nanoparticles mainly accumulated in the lungs and liver of the animals - about 25 and 20%, respectively, of the initially injected NDs. The amounts of NDs accumulated in the heart and kidneys were considerably lower. Also, EPR spectrometry did not detect NDs in the blood, spleen, brain, and femoral muscles of mice. Ten days after injection, EPR spectrometry detected redistribution of NDs in mice. The amounts of nanoparticles decreased approximately by a factor of 3.5 in the lungs and increased almost by a factor of 3 in the liver; NDs were detected in the spleen. This study suggests ways to use EPR spectrometry to study the distribution, accumulation, and elimination of detonation NDs injected into laboratory animals.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.
RAS, SB, Int Sci Ctr Studies Extreme States Organism, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.

Доп.точки доступа:
Inzhevatkin, Evgeny; Baron, Alexey; Maksimov, Nikolai; Volkova, Marina; Puzyr, Alexey; Ronzhin, Nikita; Bondar, Vladimir; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [16-04-00999]

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Fatty acid content and composition in tissues of Baikal grayling (Thymallus baicalensis), with a special focus on DHA synthesis / O. N. Makhutova, K. N. Stoyanov // Aquac. Int. - 2021, DOI 10.1007/s10499-021-00755-w . - Article in press. - ISSN 0967-6120
Кл.слова (ненормированные):
Aquaculture -- Docosahexaenoic fatty acid -- Fish diet -- Furan fatty acids -- Sprecher pathway
Аннотация: Long-chain polyunsaturated fatty acids of n-3 family (n-3 LC PUFAs) are physiologically essential compounds required for normal growth and development of animals, including humans. The ability of fish species to synthesize n-3 LC PUFAs varies significantly across different trophic levels. We have studied fatty acid (FA) content (mg/g of wet weight) and level (% of total FAs) in the brain, liver, heart, intestine, female and male gonads, muscle, and adipose tissues of commercially important wild freshwater Baikal grayling. Additionally, FA content and level of Baikal grayling juveniles have been studied. In all tissues of Baikal grayling, some LC PUFAs, namely, 24:5n-3 and 24:6n-3 (C24 PUFAs), have been found. These FAs are the intermediate products in the synthesis of docosahexaenoic acid (DHA, 22:6n-3) by the Sprecher pathway. The levels of C24 PUFAs in tissues differed significantly: the highest levels of C24 PUFAs were found in adipose tissue and the lowest values in the gonads of females, liver, brain, and head of juveniles. According to the dynamics of DHA and C24 PUFAs, the maximum rate of DHA synthesis is achieved in brain of Baikal grayling, while the lowest rate of DHA synthesis probably occurs in adipose tissue. Although all studied tissues had differences in the number of FAs and their levels, 16:0, 18:1n-9, 16:1n-7, 20:5n-3, and DHA dominated. Male gonads contained an extremely high level of furan FAs — presumably beneficial substances for human health. Additionally, the nutritional value of the tissues of Baikal grayling as a source of n-3 LC PUFAs for humans has been estimated. © 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.

Scopus
Держатели документа:
Institute of Biophysics of Federal Research Center “Krasnoyarsk Science Center” of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Makhutova, O. N.; Stoyanov, K. N.

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Fatty acid content and composition in tissues of Baikal grayling (Thymallus baicalensis), with a special focus on DHA synthesis / O. N. Makhutova, K. N. Stoyanov // Aquac. Int. - 2021, DOI 10.1007/s10499-021-00755-w. - Cited References:75. - The research was funded by a grant from the Russian Foundation for Basic Research (RFBR) N 20-04-00594, by the state assignment within the framework of the Basic Research Program of the Russian Federation (topic no. 51.1.1) and the state assignment of the Ministry of Science and Higher Education of the Russian Federation to Siberian Federal University in 2020 (Project no. FSRZ-2020-0006 "Biologically active substances in environmental, biotechnological and medical systems"). . - Article in press. - ISSN 0967-6120. - ISSN 1573-143X

РУБ Fisheries
Рубрики:
COD GADUS-MORHUA
   DOCOSAHEXAENOIC ACID
   SEASONAL DYNAMICS
   FISH
Кл.слова (ненормированные):
Docosahexaenoic fatty acid -- Sprecher pathway -- Fish diet -- Furan fatty -- acids -- Aquaculture
Аннотация: Long-chain polyunsaturated fatty acids of n-3 family (n-3 LC PUFAs) are physiologically essential compounds required for normal growth and development of animals, including humans. The ability of fish species to synthesize n-3 LC PUFAs varies significantly across different trophic levels. We have studied fatty acid (FA) content (mg/g of wet weight) and level (% of total FAs) in the brain, liver, heart, intestine, female and male gonads, muscle, and adipose tissues of commercially important wild freshwater Baikal grayling. Additionally, FA content and level of Baikal grayling juveniles have been studied. In all tissues of Baikal grayling, some LC PUFAs, namely, 24:5n-3 and 24:6n-3 (C24 PUFAs), have been found. These FAs are the intermediate products in the synthesis of docosahexaenoic acid (DHA, 22:6n-3) by the Sprecher pathway. The levels of C24 PUFAs in tissues differed significantly: the highest levels of C24 PUFAs were found in adipose tissue and the lowest values in the gonads of females, liver, brain, and head of juveniles. According to the dynamics of DHA and C24 PUFAs, the maximum rate of DHA synthesis is achieved in brain of Baikal grayling, while the lowest rate of DHA synthesis probably occurs in adipose tissue. Although all studied tissues had differences in the number of FAs and their levels, 16:0, 18:1n-9, 16:1n-7, 20:5n-3, and DHA dominated. Male gonads contained an extremely high level of furan FAs - presumably beneficial substances for human health. Additionally, the nutritional value of the tissues of Baikal grayling as a source of n-3 LC PUFAs for humans has been estimated.

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Держатели документа:
Russian Acad Sci Akademgorodok, Siberian Branch, Inst Biophys, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Makhutova, Olesia N.; Stoyanov, Kirill N.; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [20-04-00594]; Russian FederationRussian Federation [51.1.1]; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0006]

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In vivo toxicological evaluation of polyhydroxyalkanoates. / E. I. Shishatskaya, T. G. Volova, I. I. Gitelson // Doklady Biological Sciences. - 2002. - Vol. 383, Is. 1-6. - P109-111 . - ISSN 0012-4966
Кл.слова (ненормированные):
alkane -- animal -- animal behavior -- article -- cytology -- drug effect -- erythrocyte sedimentation rate -- female -- heart -- kidney -- liver -- lymphoid tissue -- male -- rat -- spleen -- Wistar rat -- Alkanes -- Animals -- Behavior, Animal -- Blood Sedimentation -- Female -- Heart -- Kidney -- Liver -- Lymphoid Tissue -- Male -- Rats -- Rats, Wistar -- Spleen

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia. : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Volova, T.G.; Gitelson, I.I.

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Biocompatibility and resorption of intravenously administered polymer microparticles in tissues of internal organs of laboratory animals / E. Shishatskaya [et al.] // Journal of Biomaterials Science, Polymer Edition. - 2011. - Vol. 22, Is. 16. - P2185-2203, DOI 10.1163/092050610X537138 . - ISSN 0920-5063
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Institute of Biophysics, SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodnyi Avenue, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.; Goreva, A.; Kalacheva, G.; Volova, T.

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EPR Spectrometric Estimation of the Distribution of Intravenously Injected Nanodiamonds in Mice / E. V. Inzhevatkin [et al.] // Biol. Bull. - 2019. - Vol. 46, Is. 3. - P277-283, DOI 10.1134/S1062359019020079. - Cited References:56. - This work was supported by the Russian Foundation for Basic Research, project no. 16-04-00999. . - ISSN 1062-3590. - ISSN 1608-3059

РУБ Biology
Рубрики:
DRUG-DELIVERY
   DETONATION NANODIAMONDS
   NANOMATERIALS
   PARTICLES
Аннотация: The distribution in mice of intravenously injected modified nanodiamonds (MNDs) obtained by detonation synthesis was studied using electron paramagnetic resonance (EPR) spectrometry. It has been shown that 2.5 h after MND injection into the tail vein of mice, the nanoparticles accumulate mainly in the lungs and liver of animals; much smaller amounts of nanoparticles were found in the kidneys and heart. The presence of MNDs in the samples of blood, spleen, brain, and thigh muscles of mice was not detected within the sensitivity of the method used.

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Держатели документа:
Russian Acad Sci, Int Sci Ctr Studies Extreme States Organism, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, Akademgorodok 50, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Inst Biophys, Fed Res Ctr,Krasnoyarsk Sci Ctr, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Pr Svobodnyi 79, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Inst Chem & Chem Technol, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, Akademgorodok 50-24, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Inzhevatkin, E. V.; Baron, A. V.; Maksimov, N. G.; Volkova, M. B.; Puzyr, A. P.; Bondar, V. S.; Russian Foundation for Basic Research [16-04-00999]

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