A. A. Shestak

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Nipple-areola reconstruction represents the final stage of breast reconstruction, whereby a reconstructed breast mound is transformed into a breast facsimile that more closely resembles the original breast. Although numerous nipple reconstruction techniques are available, all have been plagued by eventual loss of long-term projection. In this report, the(More)
BACKGROUND Friendships of adolescents with chronic illness have been rarely studied. OBJECTIVE To compare the friendships of boys and girls with diabetes with those between healthy adolescents. METHODS One hundred and thirty-eight adolescents were interviewed at summer camps. Participants indicated their number of close friends and rated friendships for(More)
Ubiquinone or plastoquinone covalently linked to synthetic decyltriphenylphosphonium (DTPP+) or rhodamine cations prevent programmed cell death (PCD) in pea leaf epidermis induced by chitosan or CN−. PCD was monitored by recording the destruction of cell nuclei. CN− induced the destruction of nuclei in both epidermal cells (EC) and guard cells (GC), whereas(More)
H2O2 intensifies CN−-induced apoptosis in stoma guard cells and to lesser degree in basic epidermal cells in peels of the lower epidermis isolated from pea leaves. The maximum effect of H2O2 on guard cells was observed at 10−4 M. By switching on non-cyclic electron transfer in chloroplasts menadione and methyl viologen intensified H2O2 generation in the(More)
Bacterial persistence is the tolerance of a small part of a cell population to bactericidal agents, which is attained by a suppression of important cell functions and subsequent deceleration or cessation of cell division. The growth rate is the decisive factor in the transition of the cells to the persister state. A comparative study of quickly growing(More)
The effect of Ca2+ on programmed death of guard cells (GC) and epidermal cells (EC) determined from destruction of the cell nucleus was investigated in epidermis of pea leaves. Ca2+ at concentrations of 1–100 μM increased and at a concentration of 1 mM prevented the CN—induced destruction of the nucleus in GC, disrupting the permeability barrier of GC(More)
Hydrogen peroxide potentiates CN−-induced apoptosis of guard cells recorded as destruction of cell nuclei in the epidermis from pea leaves. A still stronger effect was exerted by the addition of H2O2 and NADH, which are the substrates of the plant cell wall peroxidase producing $$ O_2^{\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\cdot}$}}{ - } } $$(More)
Destruction of guard cell nuclei in epidermis isolated from leaves of pea, maize, sunflower, and haricot bean, as well as destruction of cell nuclei in leaves of the aquatic plants waterweed and eelgrass were induced by cyanide. Destruction of nuclei was strengthened by illumination, prevented by the antioxidant α-tocopherol and an electron acceptor(More)
Cyanide is an apoptosis inducer in stoma guard cells from pea leaf epidermis. Unlike CN−, the uncoupler of oxidative and photosynthetic phosphorylation carbonyl cyanide m-chlorophenylhydrazone (CCCP), the combination of CCCP, 3-(3′,4′-dichlorophenyl)-1,1-dimethylurea (DCMU), benzylhydroxamate (BH), myxothiazol, antimycin A, and a glycolysis inhibitor(More)
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