(a.) Going before in time; prior; anterior; preceding; as, an event antecedent to the Deluge; an antecedent cause.
(a.) Presumptive; as, an antecedent improbability.
(n.) That which goes before in time; that which precedes.
(n.) One who precedes or goes in front.
(n.) The earlier events of one's life; previous principles, conduct, course, history.
(n.) The noun to which a relative refers; as, in the sentence "Solomon was the prince who built the temple," prince is the antecedent of who.
(n.) The first or conditional part of a hypothetical proposition; as, If the earth is fixed, the sun must move.
(n.) The first of the two propositions which constitute an enthymeme or contracted syllogism; as, Every man is mortal; therefore the king must die.
(n.) The first of the two terms of a ratio; the first or third of the four terms of a proportion. In the ratio a:b, a is the antecedent, and b the consequent.
Example Sentences:
(1) Single-case experimental designs are presented and discussed from several points of view: Historical antecedents, assessment of the dependent variable, internal and external validity and pre-experimental vs experimental single-case designs.
(2) The development of pulmonary edema in high-altitude residents with upper respiratory infections and no antecedent low-altitude journey is consistent with the presence of other factors such as inflammation, which may play a role in the pathogenesis of the edema.
(3) The favorable prognosis is due solely to the fact that women with an IUD have far less negative antecedents and that the EP probably occurred due to impaired ciliary action, reversible when the IUD is removed.
(4) The literature concerning the possible effects of tetracyclines on hemostasis with or without antecedent anticoagulation therapy is reviewed and the speculated mechanisms for such an interaction are discussed.
(5) The results suggest that ventriculomegaly, observed even as early as the first week of life, might be a significant antecedent of later motor abnormalities among the survivors of periventricular-intraventricular hemorrhage.
(6) These non-pregnant patients without any antecedent autoimmune disease were explored for the presence for autoantibodies especially lupus anticoagulant.
(7) The results suggest that patients with shoulder capsulitis should be investigated to exclude diabetes mellitus particularly when there is no history of antecedent trauma.
(8) Each patient had subacute pelvic pain without antecedent trauma.
(9) The following factors of these patients were analyzed: age, sex, civil status, socio-economic level, occupation, family antecedents, personal antecedents, smoking, alcoholism, presence of cardiac murmurs, arrhythmias, and electrocardiogram.
(10) A series of seven experiments related amplitude and latency of the pigeon's startle response, elicited by an intense visual stimulus, to antecedent auditory and visual events in the sensory environment.
(11) During the acute index episode, adult family (household) contacts, compared with control adults, had a greater rate of oropharyngeal EBV excretion and high serum antibody responses, which suggested a recent antecedent reactivation of an old EBV infection.
(12) A randomly selected group of 224 women with breast cancer responded to an anonymous survey that addressed the presence of menopause, antecedent therapies, symptoms related to estrogen deficiency, concerns about osteoporosis or heart disease, attitude about ERT, and perception about ERT-related cancer risk.
(13) An interview was applied to the fathers of the children of the study group in order to determinate hygiene oral habits, eating and familiar antecedents that could influence in the process of the ordinary and rampant caries and to compare between them.
(14) Preoperative factors such as location of lesion, antecedent surgery, and previous radiation therapy were assessed and compared to the patients who underwent "emergency" laryngectomy in an attempt to further define risk factors involved in peristomal recurrence.
(15) The equivalency of results and the lower cost of the radiologic study indicate that the double-contrast barium enema is the technique of choice for the examination of asymptomatic patients or symptomatic individuals without known antecedent disease.
(16) Comparison of the risk of muscle invasion using pathological tumor grade at diagnosis, highest grade at any cystoscopic biopsy before the diagnosis of muscle invasion or highest grade at cystoscopic biopsy immediately antecedent to the cystoscopy at which muscle invasion was diagnosed all showed similar probability of muscle invasion.
(17) We show, analyze and discuss their social and demographic features, antecedents, onset and course, acquiring behaviours and its consequences, diagnosis, gnosographic features, results of the psychodiagnostic tests, evolutive relationships with the psychiatric diagnosis and treatment undergone.
(18) Fetal abuse may be one antecedent of child abuse, and this paper attempts to transpose the known correlates of child abuse into an antenatal time framework.
(19) In both sexes, at all ages, all-cause, cardiovascular, and coronary mortality rates increased progressively in relation to antecedent heart rates determined biennially.
(20) No inhibition was detected for activated plasma thromboplastin antecedent (factor XIa), plasma kallikrein, or C1 esterase.
Progenitor
Definition:
(n.) An ancestor in the direct line; a forefather.
Example Sentences:
(1) The effects of in vivo administration of native prostaglandin E2 (PGE) on the cycling status of the granulocyte-monocyte progenitor cell (CFU-GM) were examined in a mouse model.
(2) In healthy persons the supernatant of lymphocytes preincubated with PHA and ALG was found to show a stimulating effect to clonogenic properties of marrow progenitors, the mentioned effect being not in proportion to the concentration value.
(3) We therefore think that the detailed examination of CALLA(-) non-T non-B ALL cells using myeloid specific antibodies is helpful in clarifying the characteristics of myeloid precursors and the common bipotential stem cell of lymphoid and myeloid progenitors.
(4) The high levels of circulating progenitor cells in ALL and CLL patients clearly distinguish them from other cytopenic hematological malignancies, in which decreased progenitor cell levels have been demonstrated previously (acute myeloid leukemia, hairy cell leukemia).
(5) Studies on proliferation and differentiation of granulocyte-monocyte progenitor cells in Chediak-Higashi syndrome (CHS) were done on a 1-month-old patient, using the soft-agar bone marrow culture technique.
(6) Certain mouse and human hematopoietic progenitor cells also contain an aldehyde dehydrogenase that catalyzes the detoxification of aldophosphamide, but the specific identity of this enzyme remains to be established.
(7) Mouse spleen cells rich in erythroid progenitors were washed free of endogenous Epo and then incubated in the absence of Epo.
(8) The bone marrow differentials and numbers of granulocyte-macrophage progenitors (CFC-GM) were determined after irradiation with 1.5 Gy.
(9) However, the studies on 0-2A progenitor cells were carried out in bulk cultures of optic nerve, and so it was possible that other cell-cell interactions were required for differentiation in culture.
(10) In culture, GY30 cells sustain the production of granulocyte-macrophage progenitor cells (GM-CFU) but fail to support the survival of pluripotential stem cells (CFU-S).
(11) The development of T cells from stem (progenitor) cells to effector cells results from a two-wave process of proliferation and differentiation.
(12) No chemical or immunological differences were observed in the cell wall carbohydrate of the noncapsulated streptococcus, 89R50, and that of its capsulated progenitor.
(13) This is exemplified in lymphoma cells (chronic lymphocytic leukemia of B or T type, Sezary Syndrome, immunocytoma) that resemble mature and immunocompetent T and B cells, in T cell acute lymphoblastic leukemia (T-ALL) (equivalent to thymus cells) and in non-T ALL (corresponding to lymphoid progenitor cells in the bone marrow).
(14) We studied MDS-associated inhibitory activity, which inhibited colony formation in vitro of granulocyte-macrophage progenitors (CFU-GM).
(15) In contrast, populations containing BFUe yielded a striking (sixfold for CFUe; 23-fold for e-clusters) expansion of late progenitors in the presence of Epo.
(16) The stem cell loss immediately following 55Fe injection is in our interpretation caused by rapid differentiation along the erythroid pathway in a response that involves all progenitor populations.
(17) We report here that human IL-6 and IL-3 act synergistically in support of the proliferation of progenitors for human blast cell colonies and that IL-1 alpha reveals no synergism with IL-3 when tested against purified human marrow progenitors.
(18) In addition, we have examined the ability of these fibroblasts and their conditioned medium (CM) to induce differentiation of human hemopoietic progenitor cells.
(19) AF and its deacetylated form inhibited the development of macrophage and granulocytic colonies from progenitor cells in human bone marrow even at concentrations less than or equal to 10(-9)M. The disease suppressive activity of AF could result in part from the reduction of cell numbers in arthritic lesions and our findings provide a mechanism for this possibility.
(20) Spontaneously hypertensive rats (SH) with an increased number of red blood cells (RBC), microcytosis, and normal hemoglobin (Hb) concentration were used to study the effect of different manipulations of the erythron on erythropoietin production and on erythroid progenitor proliferation by bone marrow cells in order to gain insight regarding the regulation of erythropoiesis.