Role of the internal elastic membrane in the formation of the surface microrelief of blood vessels

Krymskiĭ, L D; Nestaĭko, G B; Shekhter, Anatoly B.

doi:10.1007/bf00842652

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…The large majority of erythrocytes in health are shaped like biconcave disks, that is, they are discoor normocytes [5,10]. If the blood is exposed to some adverse factors, normocytes can aIter their shape, either reversibly or irreversibly, depending on the factor and on the duration of exposure to it.…”

Section: Resultsmentioning

confidence: 99%

“…Morphological changes in the blood interacting with PFD and during its subsequent oxygenation in a contact oxygenator were examined by scanning electron microscopy of erythrocytes using a Hitachi H-300 microscope. The counts of different morphological forms of red cells (normocytes, ovalocytes, echinocytes, cupola-shaped cells, spherocytes, microcytes, and deformed erythrocytes according to an established classification [5,10] per 100 cells were estimated at an accelerating voltage 20 kV and 2000-5000 magnification. The results were statistically processed using Student's t test and Statgraphics software.…”

Section: Methodsmentioning

confidence: 99%

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Morphological changes in red cells exposed to perfluorodecalin and oxygenation

Skorik¹,

Novozhilova²,

Sudus³

et al. 1995

Bull Exp Biol Med

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The hemoprotective effect of perfluorocarbons was studied by examining the surface architectonics of red cells during exposure of the blood to perfluorodecalin and contact oxygenation. Scanning electron microscopy revealed an appeciable increase in the percentage of damaged erythrocytes directly exposed to oxygen in a contact oxygenator. Interaction between blood and perfluorodecalin not only does not impair the morphology of the blood, but also prevents untoward effects of subsequent contact oxygenation. Fluorocarbon treatment of the blood gives rise to a number (up to 17-18%) of special cells, which morphologically represent somewhat altered normocytes with increased resistance, this reflecting a specific reaction of the blood to perfluorodecalin.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Morphological changes in red cells exposed to perfluorodecalin and oxygenation

Skorik¹,

Novozhilova²,

Sudus³

et al. 1995

Bull Exp Biol Med

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show abstract

“…Echinocytes can be divided into four (I-IV) groups. Irreversible transformation of normal discocytes into echinocytes and then into spherocytes occurs through several stages: normal and mottled discocytes, spinous discoids and spinous oblate ellipsoids and the end shape corresponding to spherocytes [4]. If a RBC is in the echinocyte state during a long period (because of a low flexibility of the membrane on a diminution of the ATP content in the cell or due to certain external factors) then it can lose a portion of the spicules (i.e.…”

Section: Introductionmentioning

confidence: 99%

Interaction of unmodified and partially silylated nanosilica with red blood cells

et al. 2007

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Abstract:Interaction of red blood cells (RBCs) with unmodified and partially (50%) silylated fumed silica A-300 (nanosilica) was studied by microscopic, XRD and thermally stimulated depolarisation current (TSDC) methods. Nanosilica at a low concentration C A−300 < 0.01 wt.% in buffered aqueous suspension is characterised by a weak haemolytic effect on RBCs. However, at C A−300 = 1 wt% all RBCs transform into shadow corpuscles because of 100% haemolysis. Partial (one-half) hydrophobization of nanosilica leads to reduction of the haemolytic effect in comparison with unmodified silica at the same concentrations. A certain portion of the TSDC spectra of the buffered suspensions with RBC/A-300 is independent of the amounts of silica. However, significant portions of the low-and high-temperature TSDC bands have a lower intensity at C A−300 = 1 wt% than that for RBCs alone or RBC/A-300 at C A−300 = 0.01 wt.% because of structural changes in RBCs. Results of microscopic and XRD investigations and calculations using the TSDC-and NMR-cryoporometry suggest that the intracellular structures in RBCs (both organic and aqueous components) depend on nanosilica concentration in the suspension.

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Role of the internal elastic membrane in the formation of the surface microrelief of blood vessels

Cited by 2 publications

References 2 publications

Morphological changes in red cells exposed to perfluorodecalin and oxygenation

Morphological changes in red cells exposed to perfluorodecalin and oxygenation

Interaction of unmodified and partially silylated nanosilica with red blood cells

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