What's the difference between chorion and egg?

Chorion


Definition:

  • (n.) The outer membrane which invests the fetus in the womb; also, the similar membrane investing many ova at certain stages of development.
  • (n.) The true skin, or cutis.
  • (n.) The outer membrane of seeds of plants.

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) Lactate dehydrogenase activity was higher in the amnion than in the chorion (p less than 0.01).
  • (3) Investigations on the influence of the diuresis effect on the results of quantitative estrogen and human chorionic gonadotropin (HCG) determination revealed that the estrogen values increase with the 24-hour amount of urine.
  • (4) Eight-week-old virgin untreated female mice were induced to ovulate using equine chorionic gonadotropin (eCG) and human chorionic gonadotropin (hCG), and were then caged with males overnight.
  • (5) Arising from a poorly differentiated thyroid papillary carcinoma we have established a cell line synthesizing the thyroglobulin and human chorionic gonadotropin (alpha and beta subunits) (HCG) hormones.
  • (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) In the Netherlands, researchers studied the medical records of and followed-up on 151 women of advanced maternal age (at least 36 years old) who underwent amniocentesis or chorionic villus sampling (CVS) and elected to terminate the pregnancy due to an abnormal genetic finding (105 and 46 women, respectively) at Academic Hospital Rotterdam-Dijkzigt between January 1980 and December 1989.
  • (8) Since our previous study revealed low basal testosterone (T) levels and a failure in response to an acute stimulation with human chorionic gonadotropin (HCG) despite of a good response to chronic stimulation in scorbutic mutant rats, time course of the response to HCG was studied and plasma LH level was measured in young adult rats deficient in ascorbic acid for 3 weeks.
  • (9) 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.
  • (10) There was an upstream "HTF" island (Hpa II tiny fragments) followed by four direct repeats of the "chorion box" enhancer.
  • (11) With the use of the radioimmunoassay for growth hormone--releasing inhibiting factor (GIF), it was found that measurable amounts of GIF-like substance existed in the chorionic villi and decidua of pregnant women.
  • (12) Cells (10(5] were incubated at 37 C for 3 h in medium 199 in the presence or absence of 10 nM ACTH, 10 nM ovine PRL, 10 nM ovine GH, 50 nM hCG, or 50 nM human chorionic somatomammotropin.
  • (13) Eight women at risk of bearing a child with a genetic defect had diagnostic chorionic villi sampling.
  • (14) 1)"Nomal secundinae" or "physiological leucocytosis at ruptured chorionic membranes": there are but a few cases (3 to 5%) of amniotic infection syndroms or morphological signs of an aspiration of infected amniotic fluid and fetal sepsis.
  • (15) Three patterns of inflammation of the chorion-decidua were identified: marginating, nonmarginating, and a mixed pattern.
  • (16) The effect of combined treatment was studied in 97 patients with nonseminomatous testicular tumors with regional and distant metastases with regard to the blood serum levels of alpha-fetoprotein and chorionic gonadotropin.
  • (17) We analyzed the trophoblast subpopulations which appear on touch smears of chorionic villi morphologically and immunohistochemically, using the uterine contents of 37 cases of induced abortion.
  • (18) Urinary pregnanediol-3 alpha-glucuronide measured by enzyme immunoassay exhibited predictive values for detecting ectopic gestations comparable with random serum progesterone or serum beta-human chorionic gonadotropin values.
  • (19) Altogether 10 reports on the safety of chorionic villus sampling, either by the transcervical (TC) or the transabdominal (TA) approach, were reviewed and combined with our own data.
  • (20) In the other patients, serum beta-human chorionic gonadotropin levels decreased to the nonpregnant range with no further intervention, and the patients recovered uneventfully.

Egg


Definition:

  • (n.) The oval or roundish body laid by domestic poultry and other birds, tortoises, etc. It consists of a yolk, usually surrounded by the "white" or albumen, and inclosed in a shell or strong membrane.
  • (n.) A simple cell, from the development of which the young of animals are formed; ovum; germ cell.
  • (n.) Anything resembling an egg in form.
  • (v. t.) To urge on; to instigate; to incite/

Example Sentences:

  • (1) Here we report that sperm from psr males fertilizes eggs, but that the paternal chromosomes are subsequently condensed into a chromatin mass before the first mitotic division of the egg and do not participate in further divisions.
  • (2) We similarly evaluated the ability of other phospholipids to form stable foam at various concentrations and ethanol volume fractions and found: bovine brain sphingomyelin greater than dipalmitoyl 3-sn-phosphatidylcholine greater than egg sphingomyelin greater than egg lecithin greater than phosphatidylglycerol.
  • (3) Whether hen's egg yolk can be used as a sperm motility stimulant in the treatment of such conditions as asthenospermia and oligospermia is subjected for further study.
  • (4) Increasing concentrations of cholesterol monotonically increase the dipole potential of egg phosphatidylcholine monolayers, from 415 mV with no cholesterol to 493 mV with equimolar cholesterol.
  • (5) The percentage of eggs clamped at values more negative than -65 mV, which responded at insemination by developing an If, decreased and dropped to 0 at -80 mV.
  • (6) Lead levels in contents and shells of eggs laid by hens dosed with all-lead shot were about twice those in eggs laid by hens dosed with lead-iron shot.
  • (7) Saturated acyl residues predominated in lysolecithin and unsaturated ones in acids released by hydrolysis of egg lecithin.
  • (8) By 30 min after insemination, the surface of the egg is relatively smooth.
  • (9) With both approaches, carbohydrate and fat had little influence whereas egg albumin had a significant inhibitory effect on the absorption of nonheme iron.
  • (10) Larvae from fresh water eggs, cultured in fresh water and 'normal' laboratory cultures reached 50% infectivity in 3-5 days, losing potential infectivity in 11-15 days post-hatching.
  • (11) Plakoglobin is present in the fertilized egg, increases in abundance by neurula stage, then declines at the tailbud and tadpole stages.
  • (12) Fertilization of golden hamster eggs was blocked both in vitro and in vivo by antibodies produced in rabbits against specific hamster ovarian antigens (HOA).
  • (13) Multiple spawnings of individual females were also observed during the spawning period affecting the relative fecundity of the eggs.
  • (14) The faeces of forty-two were examined microscopically for nematode eggs.
  • (15) In Experiment 1 (summer), hens regained body weight more rapidly, returned to production faster, and had larger egg weights (Weeks 1 to 4) when fed the 16 or 13% CP molt diets than when fed the 10% CP molt diet.
  • (16) The time of sperm penetration in the mouse eggs, however, was delayed for one-half to one hour when ejaculated sperm were used.
  • (17) Polypeptides of egg-borne Sendai virus (egg Sendai), which is biologically active on the basis of criteria of the infectivity for L cells and of hemolytic and cell fusion activities, were compared by polyacrylamide gel electrophoresis with those of L cell-borne (L Sendai) and HeLa cell-borne Sendai (HeLa Sendai) viruses, which are judged biologically inactive by the above criteria.
  • (18) The pattern of day to day variability in egg counts from individuals can be characterized by the linear relationship between the logarithms of the variances and means.
  • (19) Rhabdomeres are substantially smaller and visual pigment is nearly eliminated when Drosophila are carotenoid-deprived from egg to adult.
  • (20) In conclusion, the main finding of the present investigation, based on the development of ME fragments comprising 40-50% of the total egg volume, is that ascidian embryos are capable of regulative development.