blastogenesis


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blastogenesis

 [blas″to-jen´ĕ-sis]
1. development of an individual from a blastema, i.e., by asexual reproduction.
2. transmission of inherited characters by the germ plasm.
3. morphological transformation of small lymphocytes into large lymphocytes (lymphoblasts) that accompanies lymphocyte activation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

blas·to·gen·e·sis

(blas'tō-jen'ĕ-sis),
1. Reproduction of unicellular organisms by budding.
2. Development of an embryo during cleavage and germ layer formation.
3. Transformation of small lymphocytes of human peripheral blood in tissue culture into large, morphologically primordial blastlike cells capable of undergoing mitosis; can be induced by various agents including phytohemagglutinin, concanavalin A, certain antigens to which the cell donor has been previously immunized, and leukocytes from an unrelated individual.
[blasto- + G. genesis, origin]
Farlex Partner Medical Dictionary © Farlex 2012

blastogenesis

(blăs′tə-jĕn′ĭ-sĭs)
n.
1. The transformation of small lymphocytes into larger cells that are capable of undergoing mitosis.
2. The development of an embryo during cleavage and germ layer formation.
3. Reproduction of an organism by budding.

blas′to·ge·net′ic (-jə-nĕt′ĭk), blas′to·gen′ic (-jĕn′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

blastogenesis

(1) The theory that inherited characteristics are transmitted from parent to offspring by germ plasm. Similar to the concept of embryogenesis.
(2) Reproduction of an organism by budding.
(3) The transformation of small lymphocytes into larger cells that are capable of undergoing mitosis. See blast transformation.
(4) The development of an embryo during cleavage and germ layer formation.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

blas·to·gen·e·sis

(blas'tō-jen'ĕ-sis)
1. Reproduction of unicellular organisms by budding.
2. Development of an embryo during cleavage and germ layer formation.
3. Transformation of small lymphocytes of human peripheral blood in tissue culture into large, morphologically primordial blastlike cells capable of undergoing mitosis.
[blasto- + G. genesis, origin]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The first visible sign of blastogenesis is the appearance of a bud disk, a thickened disk of cells on the ventral side of the atrial epithelium of a first-generation bud, just before the stage where its stigmata become perforated.
PPRV and NPPRV inhibit the proliferation of PHA stimulated PBMCs of goats: PPRV (unconcentrated) could completely inhibit blastogenesis by lymphocytes under the influence of PHA (Fig.
Suppression of lymphocyte blastogenesis in cows with puerperal metritis and mastitis.
increased risk of blastogenesis birth defects, arising in the first 4 weeks of pregnancy, after assisted reproductive technologies.
[178] evaluated immune function in male Fischer 344 rats exposed to 10mg/kg of 2,4-D by oral gavage twice weekly for four weeks and found no effect on lymphocyte blastogenesis, lymphocyte cell surface marker expression, or phagocytic function of peritoneal macrophages.
The defects acquired during the organogenesis are usually more circumscribed than those of the first 28 development days (blastogenesis phase) and generally affect a single organ without compromising the survival of a developing organism.
Many studies assess immune function by looking at lymphocyte proliferation where reduced proliferation (blastogenesis) associates with decreased immune functioning.
Se ha sugerido que la exposicion a estrogenos y progestagenos o ambos en el primer trimestre del embarazo, la administracion de lovastatina, la intoxicacion por plomo y la administracion de metimazol dibenzepin (antidepresivo triciclico) durante el embarazo, afectan la blastogenesis y pueden ser una causante de esta entidad.
Immunosuppression of lymphocyte blastogenesis in cattle infected with Ostertagia ostertagi and/or Trichostrongylus axei.
Phagocytic activity of macrophages and B cell blastogenesis in vitro were significantly stimulated by the fucoidan, while no significant change in the release of NO(2)(-) by macrophages was observed.