(1) We have named this process myelin palingenesis--rebirth--to distinguish it from remyelination.
(2) Because this process takes place in the absence of neurons, we have termed it myelin palingenesis in order to distinguish it from remyelination, a term commonly used to designate reensheathment of axons.
(3) It is well known that Haeckel, going back and codifying this data, has divided it into two large groups called palingenesis and coenogenesis.
(4) Myelin palingenesis may occur seemingly without wrapping and spiraling, but membranes wrapped around oligodendrocyte processes and soma are also observed.
Transmigration
Definition:
(n.) The act of passing from one country to another; migration.
(n.) The passing of the soul at death into another mortal body; metempsychosis.
Example Sentences:
(1) After having analysed the most frequent etiological factors of mandibular canine impaction, the authors present their considerations concerning the probable pathogenetic mechanism of transmigration.
(2) The actual size of the population requiring institutional care, however, remains stable forcing individuals to transmigrate from one system to the other in order to obtain institutional support.
(3) In conclusion it is important, also from a therapeutical point of view, to keep under control, by periodical panoramic radiographs, all those clinical situations considered at risk due to their possible evolution in transmigration and which are characterized by: 1) an unerupted canine which can be palpated in a mesial position in the labial sulcus; 2) an enlarged symphyseal cross-sectional area; 3) an obstacle to normal eruption (cysts, odontomas, ecc.
(4) The initial decrease in resistance, maximal 5-13 min after initiation of transmigration, occurs despite inhibition of transmigration by an antibody to the common beta subunit of neutrophil beta 2 integrins, and is paralleled by an increase in transepithelial short-circuit current.
(5) Here we show that detailed time course studies of the transmigration-elicited decline in resistance has two components, one of which is unrelated to junctional permeability.
(6) Adhesion of lymphocytes to endothelial cells (EC) is the requisite first element in the multistep process of transmigration from blood across the postcapillary venules.
(7) During gastrostomy closure and performance of a feeding jejunostomy, inadvertent transmigration of the gastrostomy tube was found to be the etiology of the small intestinal obstruction.
(8) In contrast, eosinophils from allergic asthma patients showed an increased adherence and transmigration capacity.
(9) The patient explained his anxiety and his symptoms as stemming from violent death in his former life and subsequent transmigration.
(10) This response was dependent on the size of the FMLP gradient and the density of PMN transmigration.
(11) Three cases in whom transmigrated IUDs were removed with operative laparoscope are presented.
(12) Thus, permeability alterations accompanying PMN transmigration can be specifically attributed to altered permeability of the rate limiting barrier of the paracellular pathway, the intercellular tight junction.
(13) Chi-square analysis shows that there is no statistical difference between the tendency to right or left transmigration.
(14) We have previously reported that abdominal irradiation of mice inhibited lung metastases of a weakly immunogenic fibrosarcoma, and that transmigration after the irradiation of Enterobacter cloacae into mesenteric lymph nodes coincided with this phenomenon.
(15) Using this model, we demonstrate that neutrophil transmigration in a plasma milieu was associated with a significant disruption of the retentive properties of the basement membrane in the absence of discernable morphologic changes.
(16) 13 cases of transmigration of impacted mandibular cuspids are presented, 3 of which occurred in pairs, raising the total number of teeth to 16.
(17) In such cases the heterotopic tube should be removed to reduce the risk of ectopic pregnancy and to eliminate competition between the tubes for the transmigrating sperm and oocyte.
(18) Furthermore, in ampullary operated oviducts peritoneal transmigration of ova was frequently observed.
(19) Lungs from rIL-2-treated (but not controls) animals displayed marked ultrastructural changes by electron microscopy in the arteriolar segment to include intracellular and subcellular blebs throughout the arteriole with separation of endothelial cells from basement membrane, interstitial edema, endothelial adhesion, and transmigration of lymphocytes into interstitium.
(20) Both IFN-gamma and TNF-alpha caused sustained increased transmigration with IFN-gamma having the greater effect.