Beta-HCG


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Related to Beta-HCG: BHCG

cho·ri·on·ic go·nad·o·tro·pin (CG),

a glycoprotein with a carbohydrate fraction composed of d-galactose and hexosamine, extracted from the urine of pregnant women and produced by the placental trophoblastic cells; its most important role appears to be stimulation, during the first trimester, of ovarian secretion of the estrogen and progesterone required for the integrity of conceptus; it appears to play no significant role in the last two trimesters of pregnancy, as the estrogen and progesterone are then formed by the placenta. CG has luteinizing hormone activity and exerts its actions through luteinizing hormone receptors.

Beta-HCG (Beta-human chorionic gonadotropin)

A tumor marker associated with testicular cancer and tumors, such as choriocarcinoma and molar pregnancies, that begin in placental cells called trophoblasts.
Mentioned in: Tumor Markers
References in periodicals archive ?
The investigators measured beta-hCG on admission and followed it daily.
Because the oopherectomy and pathology reported a benign cystic teratoma that coincided with normalization of HCG levels, it was presumed that a rare occurrence of an HCG secreting dermoid cyst was the source of production of her high beta-hCG levels that mimicked an ectopic pregnancy.
Co inside, including MSAFP, beta-HCG and uE3 that it doing with increase the inhibin- A and doing four to four.
As of July 20, 2009, his beta-HCG and alpha-fetoprotein were normal and there was no evidence of relapse on the CT scan of the chest, abdomen and pelvis (Fig.
According to a prominent French specialist in emergency medicine - obliged to speak anonymously because of the medical secrecy required by French law - it would be "reasonable and rational", though not obligatory, for French emergency physicians to do the Beta-HCG test.
These include adding extra substances, called adjuvants, to the vaccine and adding another protein subunit to lock the beta-hCG into the optimal conformation.
If it rises appropriately, it's likely normal, but ectopics can also rise in the same way" as beta-HCG levels with intrauterine pregnancies, she said.
A first trimester trisomy 13/trisomy 18 risk algorithm combining fetal nuchal translucency thickness, maternal serum free beta-hCG and PAPP-A.
A pregnancy test was obtained and was positive but serial levels of beta-hCG plateaued.
A three-year study (1995-1998) of more than 10,000 specimens collected at nine weeks to 13 weeks of gestation indicated that first trimester screening using PAPP-A, free beta-hCG, and NT measurement significantly improved detection of DS and Trisomy 18, with detection rates of 91 percent and 97 percent respectively.
Food and Drug Administration for clearance to market a rapid, quantitative total beta-hCG pregnancy test.
is one of only a few laboratories nationwide performing First Trimester Screening which combines two biochemical assays (free Beta-hCG, and PAPP-A) with the ultrasound measurement of the Nuchal Translucency (NT) of the fetus.

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