Model Number: HCG Brand Name: Netural or OEM Key Specifications/Special Features: HCG ELISA(96 Tests/kit)IntroductionHCG (human chorionic gonadotropin) is a glycoproteinhormoneproduced during pregnancythat is made by the developing embryoafter conceptionand later by the syncytiotrophoblast(part of the placenta).1^,2HCG is initially secreted by the trophoblastic cells of the placenta shortly after implantation of the fertilized ovum into the uterine wall. The rapid rise in serum levels of HCG after conception makes it an excellent marker for early confirmation and monitoring of pregnancy.³
Levels of hCG may be measured in the bloodor urine. Most commonly, this is done as a pregnancy test, intended to indicate the presence or absence of an implanted embryo.
The placental hormone, HCG, is similar to LH (luteinizing hormone), FSH (follicle stimulating hormone), and TSH (thyroid stimulating hormone).
All are glycoproteins consisting of two noncovalently bound dissimilar subunits, designated alpha and beta, with attached carbohydrate sidechains.
The alpha subunits of these glycoproteins are very similar.
In contrast, the beta subunit portions determine the biological and immunochemical specificities.⁴