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Destruction of human blood cells upon interaction with detonation nanodiamonds in experiments in vitro [Текст] / A. P. Puzyr [и др.] // Biofizika. - 2005. - Vol. 50, Is. 1. - С. 101-106. - Cited References: 15 . - ISSN 0006-3029

РУБ Biophysics

Кл.слова (ненормированные):
nanodiamonds -- blood -- erythrocytes -- leukocytes -- monocytes-lymphocytes -- neutrophils -- chemiluminescence
Аннотация: The influence of nanodiamonds synthesized by detonation on human red and white blood cells in vitro was studied. Nine nanodiamond samples produced by different manufacturers and two samples of modified nanodiamonds with high colloidal stability were used in the study. It was shown that nanoparticles cause the destruction of white cells and the hemolysis of erythrocytes. Possible mechanisms of the desctructive effect of detonation nanodiamonds on blood-forming elements are discussed.

Держатели документа:
Russian Acad Sci, Inst Biophys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Dept Immunol, Krasnoyarsk Res Ctr, Siberian Div, Krasnoyarsk 660036, Russia
ZAO Almaznyi Centr, St Petersburg, Russia
ИБФ СО РАН
МНЦ КНЦ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Puzyr, A.P.; Neshumaev, D.A.; Tarskikh, S.V.; Makarskaya, G.V.; Dolmatov, V.Y.; Bondar, V.S.

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Destruction of human blood cells upon interaction with detonation nanodiamonds in experiments in vitro [Текст] / A. P. Puzyr [и др.] // Biofizika. - 2005. - Vol. 50, Is. 1. - P. 101-106. - Cited References: 15 . - ISSN 0006-3029

РУБ Biophysics

Кл.слова (ненормированные):
nanodiamonds -- blood -- erythrocytes -- leukocytes -- monocytes-lymphocytes -- neutrophils -- chemiluminescence
Аннотация: The influence of nanodiamonds synthesized by detonation on human red and white blood cells in vitro was studied. Nine nanodiamond samples produced by different manufacturers and two samples of modified nanodiamonds with high colloidal stability were used in the study. It was shown that nanoparticles cause the destruction of white cells and the hemolysis of erythrocytes. Possible mechanisms of the desctructive effect of detonation nanodiamonds on blood-forming elements are discussed.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Dept Immunol, Krasnoyarsk Res Ctr, Siberian Div, Krasnoyarsk 660036, Russia
ZAO Almaznyi Centr, St Petersburg, Russia
ИБФ СО РАН
МНЦ КНЦ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Puzyr, A.P.; Neshumaev, D.A.; Tarskikh, S.V.; Makarskaya, G.V.; Dolmatov, V.Y.; Bondar, V.S.

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Screening of biopolymeric materials for cardiovascular surgery toxicity—Evaluation of their surface relief with assessment of morphological aspects of monocyte/macrophage polarization in atherosclerosis patients / N. G. Menzyanova [et al.] // Toxicol. Rep. - 2019. - Vol. 6. - P74-90, DOI 10.1016/j.toxrep.2018.11.009 . - ISSN 2214-7500
Кл.слова (ненормированные):
Atherosclerosis -- Cell morphology -- Intravascular stenting -- Macrophages -- Monocytes -- Polyhydroxyalkanoates
Аннотация: The morphotypes of human macrophages (MPh) were studied in the culture on nano-structured biopolymer substrates, made from polyhydroxyalcanoates (PHAs) of five various monomer compositions, followed by the solvent evaporation. Its surface relief, which was further in direct contact with human cells in vitro, was analyzed by atomic force microscopy (AFM) and scanning electron microscopy (SEM). It was shown, that the features of the micro/nano relief depend on the monomeric composition of the polymer substrates. Monocytes (MN) of patients with atherosclerosis and cardiac ischemia, undergoing stenting and conventional anti-atherosclerotic therapy, were harvested prior and after stenting. MN were isolated and cultured, with the transformation into MPh in direct contact with biopolymer culture substrates with different monomer composition and nano-reliefs, and transformed into MPh, in comparison with the same process on standard culture plastic. Sub-populations of cells with characteristic morphology in each phenotypic class were described, and their quantitative ratios for each sample of polymers were counted as an intermediate result in the development of “smart” material for cardiovascular devices. The results obtained allow us to assume, that the processes of MPh differentiation and polarization in vitro depend not only on the features of the micro/nano relief of biopolymer substrates, but also on the initial state of MN in vivo and general response of patients. © 2018 The Authors

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Держатели документа:
Siberian Federal University, 79, Svobodny av., Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
L.V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Center for Cardiovascular Surgery, 45 Karaulnaya, Krasnoyarsk, 660020, Russian Federation

Доп.точки доступа:
Menzyanova, N. G.; Pyatina, S. А.; Nikolaeva, E. D.; Shabanov, A. V.; Nemtsev, I. V.; Stolyarov, D. P.; Dryganov, D. B.; Sakhnov, E. V.; Shishatskaya, E. I.

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The effect of the chemical composition and structure of polymer films made from resorbable polyhydroxyalkanoates on blood cell response / E. I. Shishatskaya, N. G. Menzyanova, A. A. Shumilova // Int. J. Biol. Macromol. - 2019. - Vol. 141. - P765-774, DOI 10.1016/j.ijbiomac.2019.09.015 . - ISSN 0141-8130
Кл.слова (ненормированные):
Blood cell response -- Degradable polyhydroxyalkanoates (PHAs) -- Surface structure and properties
Аннотация: Four PHA types were synthesized in the culture of Cupriavidus eutrophus B-10646 under special conditions, poly(3?hydroxybutyrate) [P(3HB)] and of copolymers, which contained 3HB monomers and 4?hydroxybutyrate (4HB), 3?hydroxyvalerate (3HV), or 3?hydroxyhexanoate (3HHx). All copolymers had the Mw of about 550–670 kDa, and the homopolymer P(3HB) had a significantly higher Mw – 920 kDa. P(3HB?co?4HB) and P(3HB?co?3HHx) had the lowest Cx (42 and 49%) while P(3HB?co?3HV) and P(3HB) exhibited higher Cx values (76%). Polymer films were prepared from different PHAs. Electron microscopy showed differences in the surface microstructure of the films. Films prepared from the P(3HB) were more hydrophobic and the arithmetic mean surface roughness of 71–75 nm, than the copolymer films, which were hydrophilic (57–60°) and had considerably higher roughness (158–177 nm). Blood parameters (hemoglobin and hemolysis) and response of the cells (erythrocytes, platelets, and monocytes) were studied in experiments with blood directly contacting the surface of the films of PHAs with different compositions. Cultivation of blood cells on polymer films did not cause any adverse effects on adhesion and morphology of all cell types. Results of studying blood cell response suggested that the films made from low-crystallinity copolymers containing 4?hydroxybutyrate and 3?hydroxyhexanoate were the best for contact with blood. © 2019 Elsevier B.V.

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Держатели документа:
Siberian Federal University, 79 Svobodnyi Av, Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Shishatskaya, E. I.; Menzyanova, N. G.; Shumilova, A. A.

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РУБ Biochemistry & Molecular Biology + Chemistry, Applied + Polymer Science
Рубрики:
3-HYDROXYBUTYRATE
   BIOCOMPATIBILITY
   BIOSYNTHESIS
   ADHESION
   STENTS
Кл.слова (ненормированные):
Degradable polyhydroxyalkanoates (PHAs) -- Surface structure and -- properties -- Blood cell response
Аннотация: Four PHA types were synthesized in the culture of Cupriavidus eutrophus B-10646 under special conditions, poly(3 hydroxybutyrate) [P(3HB)] and of copolymers, which contained 3HB monomers and 4 hydroxybutyrate (4HB), 3 hydroxyvalerate (3HV), or 3 hydroxyhexanoate (3HHx). All copolymers had the M-w of about 550-670 kDa, and the homopolymer P(3HB) had a significantly higher M-w - 920 kDa. P(3HB co 4HB) and P(3HB co 3HHx) had the lowest C-x (42 and 49%) while P(3HB co 3HV) and P(3HB) exhibited higher C-x values (76%). Polymer films were prepared from different PHAs. Electron microscopy showed differences in the surface microstructure of the films. Films prepared from the P(3HB) were more hydrophobic and the arithmetic mean surface roughness of 71-75 nm, than the copolymer films, which were hydrophilic (57-60 degrees) and had considerably higher roughness (158-177 nm). Blood parameters (hemoglobin and hemolysis) and response of the cells (erythrocytes, platelets, and monocytes) were studied in experiments with blood directly contacting the surface of the films of PHAs with different compositions. Cultivation of blood cells on polymer films did not cause any adverse effects on adhesion and morphology of all cell types. Results of studying blood cell response suggested that the films made from low-crystallinity copolymers containing 4 hydroxybutyrate and 3 hydroxyhexanoate were the best for contact with blood. (C) 2019 Elsevier B.V. All rights reserved.

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Держатели документа:
Siberian Fed Univ, 79 Svobodnyi Ave, Krasnoyarsk 660041, Russia.
RAS, SB, Krasnoyarsk Sci Ctr, Inst Biophys,Fed Res Ctr, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Shishatskaya, Ekaterina I.; Menzyanova, Natalia G.; Shumilova, Anna A.; Russian Science FoundationRussian Science Foundation (RSF) [17-15-01352]

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