marginate

(redirected from margination)
Also found in: Dictionary, Medical, Wikipedia.

marginate

[′mär·jə‚nāt]
(botany)
Having a distinct margin or border.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Infected mesothelial cells demonstrated glassy chromatin with margination and nuclear molding, along with occasionally prominent intranuclear inclusions.
In the neutrophil adhesion test, the adhesion of neutrophils to nylon fibres describes the margination of cells to blood vessels and that is mediated through the interaction of [a.sub.2] integrins present on the surface of the neutrophils.
Pyknosis was the result of chromatin condensation and margination. Similar results were also detected by Santos et al.
The fact that he was buried with honors in an elite mastaba-tomb, after reaching adulthood, suggests that gigantism at the time was probably not associated with social margination," the introduction to the study reads.
In hepatopancreatic cells of the diseased crab (Figure 2), condensation and margination of nuclear chromatin, disappearance and deformation of mitochondria cristae, and endoplasmic reticulum and lysosomes disintegration, and different size of vesicles could be observed Nuclear condensation, cell atrophy and intercellular space and a lot of spermatogonium with distinct nuclear pyknosis and vesicles could be observed in gonad of the diseased crabs the membrane of spermatogonium was thicken and rucked up (Figure 3).
Changes confirmed with ultrastructural analyses included nuclear chromatin aggregation and margination, marked reduction of rough endoplasmic reticulum and Golgi complexes, vascular degenerations, and necrosis and autolysis of tumor cells with dark cells and/or naked nuclear cells.[sup][32] Electron microscopy used to elucidate the mechanism of OCT in treating TSHomas showed that specimens from patients who received short-term OCT treatment presented ultrastructural changes at the organelle and subcellular levels that were not seen in TSHomas patients who did not receive OCT treatment.
However, possible mechanisms involve increased peripheral destruction, decreased bone marrow production, and increased margination of granulocytes [16].
Infiltration of macrophages was observed in the PMVECs in the patients with AAD complicated with ALI, together with karyopyknosis in various forms and chromatin margination. The images were observed under a magnification of 1500x.
The increase in vascular permeability with consequent fluid loss leads to slow blood flow, allowing leukocytes, mainly neutrophils, to interact with endothelium in an events sequence involving margination (free leukocytes capture in the vascular lumen); rolling (weak interaction and activation); adhesion (firm interaction); transmigration (leukocyte passage through endothelial cells), and, finally, the targeting of leukocytes to focus of lesion under influence of several inflammatory mediators with chemotactic activity and alterations of vascular endothelial membrane proteins [7].
Include 1 point each for the presence of either (1) nuclear enlargement/overlapping/crowding or elongation, (2) nuclear membrane irregularities, grooves, or pseudoinclusions, or (3) glassy nuclei/ cleared chromatin with margination (Figures 1(b), 1(c), and 1(d)).
The lumen is full with fragmented degenerated exfoliated cells (E) and congested blood vessels (BV) with many dark stained kidney shaped nuclei (a) of mononuclear inflammatory cell infiltrate (neutrophils) with margination from the lumen towards the blood vessels wall (x400).
After the treatment of MCF-7 with FAA at 24 h, the cell showed typical morphological features of apoptosis, including nuclear margination and chromatin condensation.