(n.) An electro-positive substance, which in electro-decomposition is evolved at the cathode; -- opposed to anion.
Example Sentences:
(1) The actions of the polyvalent cationic dye Ruthenium Red and the enzyme neuraminidase were studied at the frog neuromuscular junction.
(2) Interaction of viable macrophages with cationic particles at 37 degrees C resulted in their "internalization" within vesicles and coated pits and a closer apposition between many segments of plasmalemma than with neutral or anionic substances.
(3) On the other hand, the hydrophilic reagents, 1-ethyl-3-[3-(dimethylamino)-propyl]carbodiimide and N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline, did not affect organic cation transport.
(4) Kup is a separate K+ uptake system with relatively little discrimination in the transport of the cations K+, Rb+, and Cs+.
(5) To selectively stain polyanionic macromolecules of growth plate cartilage and to prevent artifacts induced by aqueous fixation, proximal tibial growth plates were excised from rats, slam-frozen, and freeze-substituted in 100% methanol containing the cationic dye Alcian blue.
(6) In general, enzyme activity was strongly reduced by heavy metal inorganic cations; less strongly by organometallic cations, some anions, and certain pesticides; and weakly inhibited by light metal cations and organometallic and organic compounds.
(7) Conflicting reports exist on the postprandial response of serum cationic trypsin like immunoreactivity (SCTLI).
(8) Frequent measurement of serum cation and appropriate replacement are recommended when high dose Cisplatin containing regimen is used in chemotherapy of neoplasms.
(9) Binding is inhibited by divalent and trivalent cations (Cd2+ and La3+ being most potent) and other calcium channel drugs (1,4 dihydropyridines, phenylalkylamines, benzothiazepines).
(10) The planar 7H-pyridocarbazole cations form stacks approximately parallel to b. Interactions between stacks occur by weak van der Waals forces.
(11) Bio-Rex 70, a carboxylic acid cation exchanger, is studied as a biological ion-exchanger resin model for cellular cytoplasm.
(12) 45Calcium has been used to compare the kinetics for the transport and bioaccumulation of this regulatory cation in keratinocyte cultures of a kindred with HPS (i.e., one HPS homozygote, one HPS obligate heterozygote, one normal family member, and healthy adult controls).
(13) Although GTP most potently inhibited [125I]beta h-endorphin binding in the presence of sodium, inhibition of [125I]beta h-endorphin binding by GTP was also observed in the presence of the monovalent cations lithium and potassium, but not the divalent cations magnesium, calcium, or manganese.
(14) The fungicidal activity of six rabbit neutrophil cationic peptides (NP) against resting (dormant) spores, preincubated (swollen) spores, and hyphae of Aspergillus fumigatus and Rhizopus oryzae was examined.
(15) No significant relationship was found between these urinary cations and blood pressure.
(16) Cation concentrations were determined in a stratified subsample (n = 89) of the study group.
(17) The cation leak identified in this manner is not prelytic, and it is fully reversible.
(18) Na+ could not be replaced for growth by any other cations or substances.
(19) When the concentration of Ca2+ in the medium was raised to 10 mM was the only extracellular divalent cation present, the depolarization in response to A23187 was increased to 11-8 mV.
(20) Mn2+ had dual effects, stimulating the ECP release in the absence of Mg2+ and Ca2+, and inhibiting the release in the presence of these cations.
Migrate
Definition:
(v. i.) To remove from one country or region to another, with a view to residence; to change one's place of residence; to remove; as, the Moors who migrated from Africa into Spain; to migrate to the West.
(v. i.) To pass periodically from one region or climate to another for feeding or breeding; -- said of certain birds, fishes, and quadrupeds.
Example Sentences:
(1) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
(2) During capillary growth when endothelial cells (EC) undergo extensive proliferation and migration and pericytes are scarce, hyaluronic acid (HA) levels are elevated.
(3) Major forms of the CV-1 factors migrate between 20 and 24 kilodaltons, while the COS factors migrate between 20 and 28 kilodaltons.
(4) Hence the major role of the 14-A arm of carboxybiotin is not to permit a large carboxyl migration but, rather to permit carboxybiotin to traverse the gap which occurs at the interface of three subunits and to insinuate itself between the CoA and keto acid sites.
(5) The rate of accumulation was highest late in infection and only the slower migrating form incorporates significant amounts of glucosamine.
(6) From this proliferating layer, precursor cells migrate outwards to reach the developing neostriatum in a sequential fashion according to two gradients of histogenesis.
(7) Transplanted cells divided in vivo and progressively migrated into the host brain from the site of implantation up to distances of about 1 mm.
(8) These results suggest that bPAG is probably synthesized by trophoblast binucleate cells and stored in granules prior to delivery into the maternal circulation after cell migration.
(9) Our findings: (1) both forms, LC1 and LC3, migrate in the two species with rather similar electrophoretic constants (both in terms of pI and Mr); (2) the LC2 forms of rabbit and humans exhibit the same Mr but quite different pI values, the rabbit forms being more acidic; (3) the chain LC2Sb is resolved into two spots in both rabbit and humans.
(10) The duration of electrophoresis was based on the migration of a marker dye for a predetermined distance.
(11) The dmax migrated rapidly toward the surface with increasing field size at 100-cm SSD.
(12) A decrease in neutrophil oxidative metabolism and iodination was observed, but there was no effect on neutrophil random migration or ADCC.
(13) Locally directed cell migration was observed in a group of cells in 1. which were involved in a process of aggregation, the latter being probably related to precocious formation of organ primordia.
(14) However, the variation in samples, even from among individual animals that had survived challenge, was so great that it precludes the use of the macrophage migration technique as a routine standard assay procedure for immunity.
(15) The isoenzyme mobility diminished in both tumour chromatin extracts, and the slow migrating gamma isoenzyme exhibited sensitivity to L-cysteine inhibition.
(16) The OPL first appears as a thin, discontinuous break in the cytoblast layer that is frequently interrupted by the profiles of migrating neuro- and glioblasts.
(17) On the latter, it migrated as a single polypeptide chain with or without reducing agents and had an apparent mol wt of 62,000.
(18) Fifteen apparently normal patients who had been cured of cryptococcosis were found, as a group, to have impaired responsiveness to skin testing with cryptococcin and mumps, minimal leukocyte migration inhibition when stimulated with cryptococcin or C. neoformans, but normal group responses to cryptococcin in Cryptococcus-induced lymphocyte transformation.
(19) Fc gamma RIII immunoprecipitated from a neutrophil lysate migrated from 40 to 76 Kd, whereas Fc gamma RIII immunoprecipitated from serum from the same donor migrated from 40 to 66 Kd.
(20) A greater degree of inhibition of migration was induced by addition of antigen to mononuclear cells from 18- and 24-hour exudate cells in comparison with 6- and 12-hour exudates.