What's the difference between embryonic and placentation?

Embryonic


Definition:

  • (a.) Of or pertaining to an embryo; embryonal; rudimentary.

Example Sentences:

  • (1) Brain and ganglia of embryonic Periplaneta americana were grown for 2 to 3 weeks in a chemically defined medium.
  • (2) It was found that the skeletal muscle enzyme of the chick embryo is independent of the presence of creatine and consequently is another constitutive enzyme like the creatine kinase of the early embryonic chick heart.
  • (3) Right orchiectomy and retroperitoneal lymph node dissection for embryonal carcinoma had been performed 5 years earlier.
  • (4) Blocks of hippocampal tissue containing the fascia dentata were taken from late embryonic and newborn rats and transplanted to the hippocampal region of other newborn and young adult rats.
  • (5) In conclusion, autoimmune thyroiditis in an animal model can be prevented by reducing thyroidal iodine or its metabolism and optimal effects require intervention at the embryonic stage.
  • (6) On embryonic day 3.5 (E3.5), 1 day after surgery, there is a 42% average increase in volume of the polyganglia compared with the corresponding DRG on the unoperated side.
  • (7) Isoenzyme LDH4 was absent in the human pancreas in all the studied periods of embryonic development.
  • (8) The mRNA data of the developing gut correspond with previous protein data, which showed that the shorter Mr 210,000 polypeptide predominates during earlier developmental stages and the larger Mr 260,000 polypeptide appears later in the embryonic gut (Aufderheide, E., and P. Ekblom.
  • (9) Almost nothing is known about nature and timing of the embryonic cues which induce or initiate spicule formation by these cells.
  • (10) Implantation is dependent on embryonic age and is independent of endometrial maturation within this window.
  • (11) The junctional currents were already constant 1 ms after step changes in the junctional voltage; this was three orders of magnitude faster than the other known examples of voltage-controlled gap junctions between embryonic cells.
  • (12) Zona pellucida solubility, plasminogen activator production, and plasminogen conversion to plasmin increased as embryonic stage advanced; however, plasminogen activator production and plasmin conversion to plasmin were poorly correlated with zona pellucida solubility.
  • (13) He fashioned alliances with France in the 1950s, and planted the seeds for Israel’s embryonic electronics and aircraft industries.
  • (14) Both kinds of experiments show that 1, 25-(OH)2D3 has effects on embryonic bone which are typical for high concentrations of parathyroid hormone (PTH).
  • (15) p50B is able to form heteromeric kappa B-binding complexes with RelB, as well as with p65 and p50, the two subunits of NF-kappa B. Transient-transfection experiments in embryonal carcinoma cells demonstrate a functional cooperation between p50B and RelB or p65 in transactivation of a reporter plasmid dependent on a kappa B site.
  • (16) At the adult neuromuscular junction, acetylcholine (ACh) receptors are highly localized at the subsynaptic membrane, whereas, embryonic myotubes before innervation have receptors distributed over the entire surface.
  • (17) Embryonal carcinomas were found in 15 tumours, two being of pure type and the remaining 13 a part of mixed tumours.
  • (18) A large portion of the N-terminal globule of human collagen VI was prepared from the culture medium of stably transfected human embryonic kidney cell clones.
  • (19) The tissues were derived from the three germ layers and were prevalently mature; only a bit of them was represented by embryonic mesenchymal tissue.
  • (20) Phosphotyrosine-modified proteins were also abundant in and highly restricted to the process-rich layers of the embryonic optic tectum.

Placentation


Definition:

  • (n.) The mode of formation of the placenta in different animals; as, the placentation of mammals.
  • (n.) The mode in which the placenta is arranged or composed; as, axile placentation; parietal placentation.

Example Sentences:

  • (1) Confined placental chorionic mosaicism is reported in 2% of viable pregnancies cytogenetically analyzed on chorionic villi samplings (CVS) at 9-12 weeks of gestation.
  • (2) The human placental villus tissue contains opioid receptors and peptides.
  • (3) Under the same conditions, no radioactive estrogen could be identified in adrenal and placental incubations.
  • (4) Intravenous injection of Cd2+ to the pregnant rat on day 12 causes a dose-dependent inhibition of placental Zn2+ transport.
  • (5) Stimulation of placental growth by fetal insulin may be an important component of the fetal growth stimulatory effect of endogenous insulin.
  • (6) Significantly more PP12 (P less than 0.001) was released into the medium from decidual explants than from chorion and amnion explants throughout the experimental period of 24 h. When incubated under identical conditions, placental explants released no detectable PP12.
  • (7) We suggest trans-placental sensitization as one of several possible interpretations of this finding.
  • (8) Anti-synthetic HIRP(957-980) serum HIR-27 was proved to cross-react with HIRP-related proteins in solubilized human placental membranes.
  • (9) Human placental uracil DNA glycosylase was purified 3700-fold to apparent homogeneity as defined by SDS gel analysis.
  • (10) Affinity-purified human placental ribonuclease inhibitor (PRI) was digested by trypsin.
  • (11) Evaluation of the roles of prolactin and placental lactogen in pregnancy in primates has revealed mammotropic, fetal osmoregulatory, metabolic, and steroidogenic roles, which appear to protect the uterine contents during late pregnancy and prepare the fetus for the changes in nutrition at the time of delivery.
  • (12) The intravenous administration of ovine placental lactogen to pregnant and non-pregnant sheep produced significant acute decreases in plasma free fatty acid, glucose and amino nitrogen concentrations.
  • (13) The following examinations could be proposed: in high risk cases determined before pregnancy, a chorionic villus sampling should be done between the 9th and 11th weeks of gestation; in low risk cases such as advanced maternal age, a first trimester chorionic villus sampling or a second trimester amniocentesis could be chosen; in the case of Down's syndrome, warning signs, for example ultrasonographic or biological parameters, a second trimester placental biopsy to relieve the parents' anxiety; in high risk cases such as ultrasonographic malformations, late placental biopsy or cordocentesis.
  • (14) Thermostability of placental catalase increases with prenatal development, while the enzyme from fetal liver remains moderately heat-stable throughout the gestation.
  • (15) Due to placental insufficiency a cesarean section had to be performed in the 31st week of gestation.
  • (16) The most remarkable finding is that activation by N-ethylaminoethanol is much more pronounced, in the case of the intestinal and placental isoenzymes, than is activation by diethanolamine.
  • (17) Significant correlations were observed between m-AFP and fetal weight and PAMP-2 and placental weight.
  • (18) In contrast to many eutherian (placental) species, this marsupial was found to lack histamine in blood leukocytes and platelets.
  • (19) Polymorphism of PGM1 and PGM3 types was investigated in placental extracts from 127 unrelated Japanese parturients living in Yamanashi Prefecture.
  • (20) Rabbit antiserum against highly purified high-molecular-weight B-variant of human placental alkaline phosphatase (M.W.