The DOI matches its Crossref record.
Chorionic gonadotrophin and embryo-maternal recognition during the peri-implantation period in primates
Abstract
Summary. Genes for chorionic gonadotrophin (CG) are transcribed by the 16-cell embryo stage in humans, but there is no clear evidence of CG secretion as a bioactive dimer before attachment and trophoblast outgrowth stages of implantation. The studies summarized question the timing of CG expression and secretion, the possible roles of CG for intraembryonic differentiation and at the implantation site, and the recognition of this primate embryo-derived signal in support of the corpus luteum. The data suggest that the implantation window in primates may be broader than in nonprimate species, where a closer synchrony between embryonic, tubal and uterine events appears to be necessary for embryonic survival. Some preliminary data concerning an association between peripheral thrombocytopenia, ovarian inhibin secretion and peri-implantation stages of embryo development indicate that an unknown embryonic signal may be secreted before bioactive CG can be detected. Keywords: chorionic gonadotrophin; corpus luteum; embryo; implantation; platelet-activating factor; inhibin; pregnancy; primate
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The receptivity of the endometrium decreases during the late luteal phase, and the corpus luteum is less responsive to chorionic gonadotropin by 11 or 12 days after ovulation.
“The receptivity of the endometrium decreases during the late luteal phase, 1,2 and the corpus luteum is less responsive to chorionic gonadotropin by 11 or 12 days after ovulation.30”
From Time of Implantation of the Conceptus and Loss of Pregnancy (1999) · cites this paper as [1]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
No references could be resolved yet.
Research works printed but not linked: 18
- Anderson, T.L. & Hodgen, G.D. (1989) Uterine receptivity in the primate. In Development of Preimplantation Embryos and Their Environment, pp. 389-399.
- Baird, D.T. (1985) Control of luteolysis. In The Luteal Phase, pp. 25^13. Ed. S. L. Jeffcoate. John Wiley & Sons, Chichester.
- Edwards, R.G. (1985) Current status of human concep¬ tion in vitro. Proc. R. Soc, Lond. 223, 417^448.
- Harper, M.J.K., Kudolo, G.B., Alecozay, A.A. & Jones, M.A. (1989) Platelet-activating factor (PAF) and blastocyst-endometrial interactions. In Development of Preimplantation Embryos and Their Environment, pp. 305-315.
- Hearn, J.P. (1976) Immunization against pregnancy. Proc. R. Soc. Lond., 195, 149-160.
- Hearn, J.P. (1979) Immunological interference with the maternal recognition of pregnancy in primates. In Maternal Recognition of Pregnancy (Ciba Foundation Symposium 62), pp. 353-375. Excerpta Medica, Amsterdam.
- Hearn, J.P., Hendrickx, A.G., Webley, G.E. & Binkerd, P.I. (in press) Embryonic development. In Marshall's Physiology of Reproduction 3. Ed. E. Lamming. Churchill-Livingstone, Edinburgh.
- Hendrickx, A.G. & Enders, A.C. (1980) Implantation in non-human primates. II Endocrinology. In Non- human Primate Models for Study of Human Repro¬ duction, pp. 109-116.
- Ed. T. C. Anand Kumar. Karger, Basel. Hertig, A.T. & Rock, J. (1945) Two human ova of the pre-villous stage having a developmental age of about seven and nine days respectively. Carnegie Conlrib. Embryo!. 31, 65-84.
- Petraglia, F., Vaughan, J. & Vale, W. (1989) Inhibin and activin modulate the release of gonadotropin-releasing hormone, human chorionic gonadotropin and pro¬ gesterone from cultured human placental cells. Proc. NatlAcad. Sci. USA 86, 5114 5117.
- Ross, G.T. (1979) Human chorionic gonadotrophin and maternal recognition of pregnancy. In Maternal Recognition of Pregnancy (Ciba Foundation Symposium 64), pp. 191-208. Excerpta Medica, Amsterdam.
- Short, R.V. (1969) Implantation and the maternal recog¬ nition of pregnancy. In Foetal Anatomy (Ciba Foundation Symposium 23), pp. 2-26. Churchill, London.
- Short, R.V. (1979) When a conception fails to become a pregnancy. In Maternal Recognition of Pregnancy (Ciba Foundation Symposium 64), pp. 377-395. Excerpta Medica, Amsterdam.
- Sinosich, M.J., Ferrier, A. & Saunders, D.M. (1985) Monitoring of postimplantation embryo viability following successful in vitro fertilization and embryo transfer by measurements of placental proteins. Feri. Steril. 44, 70 74.
- Stevens, V.C. (1976) Perspectives of development of a fertility control vaccine from hormonal antigens of the trophoblast. In Development of Vaccines for Fertility Regulation ( World Health Organization meeting), pp. 93-110, Scriptor, Copenhagen.
- Stouffer, R.L., Ottobre, J.S., Molskness, T.A. & Zelinski- Wooten, M.B. (1989) The function and regulation of the primate corpus luteum during the fertile men¬ strual cycle. In Development of Preimplantation Embryos and Their Environment, pp. 129-142.
- Surani, M.A., Allen, N.D., Barton, S.C, Fúndele, R., Hewlett, S.K., Norris, M.J. & Reik, W. (1990) Developmental consequences of imprinting of parental chromosomes by DNA methylation. Phil. Trans. R. Soc. 326, 313-327.
- Webley, G.E., Knight, P.G., Given, A. & Hodges, J.K. (1991) Increased concentrations of immunoreactive inhibin during conception cycles in the marmoset monkey: suppression with an LHRH antagonist and cloprostenol. J. Endocr. In Press.
Cited by
Sorted by citations
Time of Implantation of the Conceptus and Loss of Pregnancy
Wilcox, A. J., Baird, D. D., & Weinberg, C. R. (1999) · New England Journal of Medicine · doi:10.1056/nejm199906103402304 · Cited by 1,081
Vaginal bleeding in very early pregnancy
Harville, E. W. (2003) · Human Reproduction · doi:10.1093/humrep/deg379 · Cited by 68
Metadata
- Authors
- Hearn, J. P., Webley, G. E., & Gidley-Baird, A. A.
- Venue
- Reproduction
- Publisher
- Oxford University Press (OUP)
- Published
- 1991-07-01
- Volume
- 92
- Issue
- 2
- Pages
- 497-509
- ISSN
- 1470-1626
- 1741-7899
- Cited by
- 46
- References
- 0
- Language
- en
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
