(a.) Pertaining to, consisting of, or resembling, membrane; as, a membranous covering or lining.
(a.) Membranaceous.
Example Sentences:
(1) Tryptic digestion of the membranes caused complete disappearance of the binding activity, but heat-treatment for 5 min at 70 degrees C caused only 40% loss of activity.
(2) The extents of phospholipid hydrolysis were relatively low in brain homogenates, synaptic plasma membranes and heart ventricular muscle.
(3) The patterns observed were: clusters of granules related to the cell membrane; positive staining localized to portions of the cell membrane, and, less commonly, the whole cell circumference.
(4) Activity of Na,K-ATPase activity was measured as a functional marker for synaptosomal membranes.
(5) The influence of the various concepts for the induction of lateral structure formation in lipid membranes on integral functional units like ionophores is demonstrated by analysing the single channel current fluctuations of gramicidin in bimolecular lipid membranes.
(6) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
(7) The predicted non-Lorentzian line shapes and widths were found to be in good agreement with experimental results, indicating that the local orientational order (called "packing" by many workers) in the bilayers of small vesicles and in multilamellar membranes is substantially the same.
(8) Apparently, the irradiation with visible light of a low intensity creates an additional proton gradient and thus stimulates a new replication and division cycle in the population of cells whose membranes do not have delta pH necessary for the initiation of these processes.
(9) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
(10) The fraction of the viral dose which became cell associated was independent of the incubation temperature and increased with increasing target membrane concentration.
(11) Together these results suggest that IVC may operate as a selective activator of calpain both in the cytosol and at the membrane level; in the latter case in synergism with the activation induced by association of the proteinase to the cell membrane.
(12) The Cole-Moore effect, which was found here only under a specific set of conditions, thus may be a special case rather than the general property of the membrane.
(13) We have examined the insertion of bovine 17 alpha-hydroxylase (P45017 alpha) into the endoplasmic reticulum of COS 1 cells to evaluate the functional role of its hydrophobic amino-terminal sequence and membrane insertion.
(14) The transport of potassium ions through membranes of red blood cells was examined in in bitro experiments using a CMF of 4500 oersted.
(15) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
(16) Extensive studies during recent years have shown that the interaction between hormone and membrane-bound receptor can affect the receptor characteristics in at least two ways.
(17) Membranes of this material were filled with islets of Langerhans and implanted in the peritoneal cavity of rats.
(18) The penicillin-resistant Enterococcus hirae R40 has a typical profile of membrane-bound penicillin-binding proteins (PBPs) except that the 71 kDa PBP5 of low penicillin affinity represents about 50% of all the PBPs present.
(19) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
(20) Moreover, in DCVC-treated cells the mitochondria could not be stained with rhodamine-123, indicating severe mitochondrial damage and loss of membrane potential.
Neurilemma
Definition:
(n.) The delicate outer sheath of a nerve fiber; the primitive sheath.
(n.) The perineurium.
Example Sentences:
(1) Immunoreactivity can also be found in the extracellular surface of the neurilemma of the synganglion.
(2) Immunohistochemically the neurilemma showed a reaction negative for S-100 protein.
(3) Immunohistochemically the neurilemma showed a reaction positive for S-100 protein.
(4) In 21 specimens, with complete severance of the facial nerve but continuous neurilemma confirmed during surgery, regeneration phenomenon was observed.
(5) In 7 days after the operation in the transplanted piece of the nerve trunk certain phenomena, similar to the Wallerian degeneration are noted, while viability of neurilemma cells is preserved.
(6) The few previous histologic examinations have documented hyperplasia of the microfibrils which accumulate in the axons as well as in neurilemma, endothelial, and perineural cells.
(7) NDPase activity on the neurilemma may reflect the role of this enzyme in the synthesis of glycoproteins involved in neuronal surface recognition.
(8) At each effect three types of changes can be determined, characterized with various degree of rearrangement in neurilemma, neuroplasm and organelles.
(9) In addition, the neurilemma was studied by immunohistochemistry specific for S-100 protein.
(10) Processes believed to be dendrites of the neurosecretory neurons lie superficially underneath the neurilemma and enclose neurosecretory material (NSM).
(11) Using immune complexes of horseradish peroxidase (HRP) and rabbit IgG antibodies to HRP and a monoclonal antibody against FcR, the receptors were shown on the nerve fibres, probably on the Schwann cell membrane (neurilemma).
(12) The cytochemical localization of nucleoside diphosphatase and thiamine pyrophosphatase occurs within the "mature face" of the Golgi apparatus and over the neurilemma in neurons of the cerebellum, the cerebral cortex and the brain stem.