Adj.1.embryonic- of anorganismpriortobirthorhatching;"intheembryonicstage";"embryologicdevelopment" embryologic,embryonal immature-notyetmature 2.embryonic- in anearlystageofdevelopment;"theembryonicgovernmentstaffedbysurvivorsofthemassacre";"anembryonicnation,notyetself-governing" ...
These embryos, therefore, seemed to have received an inductive stimulus during their more prolonged stay in the ovule which permitted subsequent differentiation. This organogenetic impulse was also expressed even when the embryo was longitudinally bisected. Each half-embryo regenerated a complete embryo ...
45,46. No studies has yet addressed the precise timing and sequence of changes in expression of key genes and proteins at the time of sex differentiation and related that to subsequent events in germ cell and somatic cell maturation.
d. Embryology The process by which one part of an embryo causes adjacent tissues or parts to change form or shape, as by the diffusion of hormones or other chemicals. 6. Presentation of material, such as facts or evidence, in support of an argument or proposition. 7. A preface or prolog...
The Y chromosome Sry gene produces the testis which in turn produces its signature hormone, testosterone. It is the exposure of the male embryo in development to high concentrations of testosterone (paradoxically converted intracellular by aromatase to estrogen) thatorganizesthe male brain to respond ...
Embryo mortality was recorded during hatching. Considering that the maternal microbiota might represent an influencing factor, the eggs were not disinfected before hatching. The hen feeding (described above) and breeder egg hatching experiments were conducted at Changchun Academy of Agricultural Science, ...
The developmental program of the embryo displays a plasticity that can result in long-acting effects that extend into postnatal life. In mammals, adult phenotype can be altered by changes in the maternal environment during the preimplantation period. One characteristic of developmental programming during...
behavior. The number of functions proposed for this vitamin in the brain over the past 10 years is staggering. Vitamin D can affect brain cell differentiation, neurotrophin expression, cytokine regulation, neurotransmitter synthesis, intracellular calcium signaling, antioxidant activity, and the expression...
Trophoblast differentiation during embryo implantation and formation of the maternal-fetal interface Trophoblasts, the specialized cells of the placenta, play a major role in implantation and formation of the maternal-fetal interface. Through an unusual di... K Red-Horse,Y Zhou,O Genbacev,... -...
These data may help to better understand the development of normal human embryos and to detect abnormal embryos in the early stages of development. Anat Rec, 298:820–826, 2015. 2014 Wiley Periodicals, Inc. 展开 关键词: spleen dorsal mesogastrium human embryo morphogenesis ...