(n.) Formation and separation of laminae or layers; one of the methods by which the various blastodermic layers of the ovum are differentiated.
Example Sentences:
(1) Dissecting aneurysms--which should be called incomplete internal aortic disease with delamination of the media--remains a fearsome disease in subjects over 50, despite advances in surgery.
(2) Pathologic examination revealed a damaged luminal surface in 22 grafts, deep folds in 8 grafts and delamination of the graft wall in 16 cases.
(3) Orthopedic surgeons should be aware of early delamination and surface failure in heat-pressed inserts.
(4) Water absorption and subsequent delamination made the plate flexible.
(5) These insights give us several ideas about possible therapeutic interventions: corticosteroids or other drugs might be used to blunt granulocyte responsiveness; iron chelation might be used to limit the production of toxic hydroxyl radical; competitive inhibition of oxidant damage might be possible using such simple compounds as methionine; protease inhibitors might blunt endothelial cell delamination.
(6) Meso1 is a molecule of 380 kDa that is first detected at the time of primary mesenchyme cell delamination from the wall of the blastula.
(7) No delamination was found for either system after vigorous washing with water.
(8) Localization of the transcript and protein in embryos has shown that the gene is predominantly expressed in a restricted set of tissues: the developing tracheal system and the delaminating midline glial and neural cells.
(9) Delamination, consisting of complete breakup of material in flakes and particles, appeared to be initiated by intergranular material defects and propagated by the excessive subsurface stresses beneath the contact zone.
(10) In embryos lacking any one of five genes, the restriction of ac expression to single cells does not occur; instead, all cells of each cluster continue to express ac, enlarge, delaminate and become neuroblasts.
(11) Results indicated that these dentinal bonding agents actually bonded to the smear layer, and samples demonstrated delamination of the smear layer from underlying dentin following thermocycling.
(12) The polyethylene of PCA tibial components showed serious delamination after only short durations, as a result of heat pressing.
(13) As the neural folds elevate, the NE and EE delaminate progressively beginning at the basal surface of the lateral extremes of the neural plate.
(14) The photophores differentiate as an outgrowth of the basal cell layer of the epidermis, from which they delaminate into the dermis.
(15) The polyethylene of the tibial components showed excessive delamination.
(16) Gross morphologic examination, light microscopy, and scanning electron microscopy demonstrated that the umbilical vein grafts appeared to be fragile and easily delaminated.
(17) The mitotic recombination experiment revealed that Notch product is required by epidermal cells subsequent to neuroblast delamination.
(18) At somitic levels, where the convergence is not important, delamination involves the progressive formation of a half-moon-shaped cavity.
(19) Abrasion from cement or bone and delamination wear were particularly pronounced in the knee.
(20) This ultimately resulted in disruption of the lamina, dispersal of the basal layer of the epithelium, and release of the crest precursors in the delaminate gap.
Laminar
Definition:
(a.) Alt. of Laminal
Example Sentences:
(1) The ultrastructure of these fibers showed intramitochondrial paracrystalline inclusions, laminar and fingerprint bodies.
(2) Also, the neocortex is among the vulnerable structures, and often a characteristic laminar neuron loss is found.
(3) In all 11 patients, transesophageal echocardiography presented the definite visualization of the defect and a clear laminar shunt flow that showed its 2 peaks in late systole and late diastole.
(4) The clinical and histopathological features of age-related macular degeneration (AMD) include a relationship with age, and the presence of pigmentary disturbances, drusen, thickening of Bruch's membrane, and basal laminar deposits.
(5) The rate of infections can be reduced to 1% prophylactic administration of antibiotics, surgery in an laminar airflow operating theater, and by the use of cement containing antibiotics.
(6) In imaging porcine whole blood under steady laminar flow, under certain conditions a hypoechoic region was observed to appear near the center of the flow conduit.
(7) The findings described here are consistent with a role for FN in the development of a laminar organization in the dLGN.
(8) The laminar pattern of current sources and sinks coincident with this component was more complicated after bicuculline, reflecting the summation of current flows associated with disinhibited lamina 4 activity.
(9) Differences in antibiotic therapy, chemotherapy, use of laminar flow rooms, and grouping of patients make it difficult to compare these clinical trials.
(10) The laminar origin of the ILN and PAG projecting neurons were found primarily in the contralateral reticular portion of V, medial VII and the nucleus of dorsolateral funiculus.
(11) These data indicate that activation of neurons in laminar regions of Vc that process nociceptive information cause an increase in plasma ACTH, whereas activation of neurons in laminae of Vc that process mainly non-nociceptive input have no significant influence on plasma ACTH.
(12) CCK-5-labelled binding sites in a highly age-dependent, laminar-specific manner.
(13) 2) Malformations of the acrosome independent from the spermatid's nucleus: the acrosomal material is contained in small vesicles, large vacuoles, in ring-like structures, in globular or shell-like laminar structures.
(14) Electron microscopy of host rat perforant path fibers traced to the xenograft dentate molecular layer confirmed the laminar distribution and revealed numerous asymmetric synaptic contacts with spines.
(15) Most sections through the processes appear round or oval rather than laminar in normal astrocytes.
(16) With respect to distribution of gas, 53% of patients presented pneumatocele, 38% of patients had pneumoencephalos, and 15% presented a laminar distribution of the gas.
(17) Use of the laminar flow cabinet produced a significantly greater level of contamination than the other methods, and it is concluded that the exhaust-ventilated safety hood should be used for this procedure.
(18) Juxta-articular osteoid osteomas often show an absent or small perifocal osteosclerosis, whereas a laminar periosteal reaction was seen in all own cases.
(19) A laminar representation of sensory modalities was present in the hamster superior colliculus (SC) with upper laminar cells being exclusively visual, while intermediate and deeper layer cells were visual, somatic, acoustic or multimodal.
(20) Laminar field analysis of the antidromic spike potentials showed that the antidromic impulses invaded at least 200 mu of the main dendrites as well as the soma, there being then a steep decrement to the surface.