(n.) One who, or that which, precedes an event, and indicates its approach; a forerunner; a harbinger.
Example Sentences:
(1) After 4 to 6 hours of recirculation, accumulation of vasoactive amine, 5-hydroxytryptamine, its major metabolite, 5-hydroxyindole acetic acid, and its precursor amino acid, tryptophan were detected.
(2) Compound Z has the properties expected of an oxidized MPT precursor.
(3) Moreover in MIT-1, the size of the novel polypeptide was not that predicted of the precursor (44.9 kDa) but was about 39 kDa, the same size as the authentic GS gamma polypeptide in CYT-4.
(4) It is possible that the elements provide common precursor proteins that reach the secretory intermediate lobe cells through their dendritic branches.
(5) The present in vitro studies show that it is found as beta-endorphin in bovine pituitary slices incubated with radioactive amino acid precursor [35S]methionine.
(6) Our study suggests that a major part of the renal antimineralocorticoid activity of spironolactone may be attributable to minor sulfur-containing metabolites or their precursors having a high renal clearance that affords access to their site of activity via the renal tubular fluid.
(7) When an expression vector containing plasminogen cDNA is transfected into baby hamster kidney cells, the number of drug-resistant colonies as well as the levels of plasminogen secreted by those colonies is lower than observed in similar transfections of other protease precursor genes.
(8) These series were prepared by oxidation of the new hydroquinone precursors.
(9) Administration of one of the precursors of noradrenaline l-DOPA not only prevented the decrease in tissue noradrenaline content in myocardium, but restored completely its reserves, exhausted by electrostimulation of the aortic arch.
(10) By 3 d in the chick embryo, the first neurons detected by antibodies to Ng-CAM are located in the ventral neural tube; these precursors of motor neurons emit well-stained fibers to the periphery.
(11) From this proliferating layer, precursor cells migrate outwards to reach the developing neostriatum in a sequential fashion according to two gradients of histogenesis.
(12) If this is what 70s stoners were laughing at, it feels like they’ve already become acquiescent, passive parts of media-relayed consumer society; precursors of the cathode-ray-frazzled pop-culture exegetists of Tarantino and Kevin Smith in the 90s.
(13) Fiber may have a protective role because of its influence on estrogen metabolism and excretion or because of the endocrine effects of the lignans, a family of compounds formed in the intestine from fiber-associated precursors.
(14) Furthermore it is this small compartment that is preferentially radioactively labelled during short-term incubations with radioactively labelled precursors.
(15) One important consequence of the conservative mode of replication is that cellular enzymes never gain access to the reovirus genome but only to its ssRNA precursors.
(16) The results from rabbit experiments suggest that the 12S protein, probably represents a precursor of TG.
(17) In vitro import assays indicate that ATP12 protein is synthesized as a precursor approximately 3 kDa larger than the mature protein.
(18) Tritium-labeled ribonucleic acid precursors, including cytidine, uridine, and orotic acid, were injected into rats with dated pregnancies (14 to 21 days) and virgin rats.
(19) Pulse-chase experiments showed that the ornithine transcarbamylase precursor and the thiolase traveled from the cytosol to the mitochondria with half-lives of less than 5 min, whereas the three fusion proteins traveled with half-lives of 10-15 min.
(20) The results show that centrally administered serotonin, the serotonin precursor, 5-hydroxytryptophan administered with clorgyline, a selective MAO A inhibitor, quipazine, a serotonin receptor agonist, and fluoxetine, a selective inhibitor of neuronal re-uptake of serotonin, attenuated all paradigms of FIA and apomorphine induced potentiation of FIA.
Precursory
Definition:
(a.) Preceding as a precursor or harbinger; indicating something to follow; as, precursory symptoms of a fever.
(n.) An introduction.
Example Sentences:
(1) The results of these two parameters showed that Chinese medicinal herbs with Jian Pi Li Qi action are effective in inhibiting the precursory lesions of liver cancer in rats.
(2) Thus, at least from the viewpoint of cell junctions, it is suggested that the main precursory cells of the luteal cells are the theca interna cells, although there is a general agreement that the luteal cells are derived from the granulosa cells.
(3) The application of Alcian Blue staining techniques and enzymatic degradations permitted to reveal in both species that in earlier stages of cerebellar development hyaluronic acid is present throughout neuropile of entire cerebellum but it accumulated preferentially at the medullary region and around precursory Purkinje cells where it showed a mucoid-like appearance.
(4) Some problems of the modern tissue preservation, the collagen synthesis occurring in the active fibroblasts, the secretion of the collagen precursory substance into the extracellulary space, as well as the formation, the structure and the constitution of the newly synthesized collagen fibres--forming the transplant--are discussed by the authors.
(5) SI is a syndrome which includes all clinical manifestations with imminent potential of transformation into shock condition, and represents the stage precursory to the setting up of shock.
(6) Precursory albumen forms in the tubular glands of the oviduct.
(7) (4) It was considered that the electron-dense materials were the main toxic or precursory substances in the Euproctis spicules.
(8) Linoleic acid (LA) is an essential component of cellular membranes and plays, therefore, an important role in cells; moreover, it plays a functional part on account of its precursory position of eicosanoids.
(9) This particular change has been attributed to the formation of an activated complex that is immediately precursory to phosphorylation and indicates here that this complex cannot be properly formed until the metal has been chelated by the enzyme.
(10) We speculate that these changes are precursory to the pathogenesis of glomerular sclerosis in patients with sickle cell disease.
(11) These results may still favor TEE as a semi-invasive diagnostic procedure after a precursory screening transthoracic echogram in suspected aortic dissection, but they establish MRI as an excellent method to avoid false-positive findings.
(12) Lentigo malignant melanoma (LMM) is a precursory lesion.
(13) Before the appearance of the morphological primordium of the nervous system, its precursory cells carry the necessary information to put in action the basic characteristics of cell differentiation and structural organization, even isolated from the influence of mesoblastic cells.
(14) The overlap in patterns is presumptive evidence that the angioimmunoblastic pattern at times may be a precursory expression of the stem cell lymphoma.
(15) In contrast to a precursory screening transthoracic echogram, the sensitivities of both MRI and TEE were 100% for detecting a dissection of the thoracic aorta irrespective of its location.
(16) In the latter instance, the disease may be localized or, most often, be a precursory lesion to regional or systemic disease.
(17) This study's objectives were to determine the influence of age and occupational factors on cardiovascular disease (CVD) incidence among U.S. Navy pilots diagnosed with CVD during a 12.5-year time period (n = 150) and to identify precursory diseases associated with CVD.
(18) These intestinal metabolites may represent precursory stages in the overall metabolism of crufomate.
(19) It is also suggested that the conformational effect extends to a significant distance from the nucleotide binding site and may be a precursory step to Ca2+ translocation.
(20) In one group of three cases, multifocal glioblastomas appeared to be emerging in the background of a better differentiated, and presumably precursory, astrocytic neoplasm.