beta-human chorionic gonadotropin

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β-human chorionic gonadotropin

a 145-amino acid subunit unique to HCG, which has the same α-chain as FSH, LH, and TSH. Pregnancy tests specific for β-HCG are more sensitive because there is no confusion with other gonadotropins secreted by the pituitary.
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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
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Demographic and clinical characteristics, ultrasonografic findings, pretreatment serum b-human chorionic gonadotropin (b-hCG) and progesterone levels of 58 patients with EP were retrieved from hospital records retrospectively.
KEY WORDS: Ectopic pregnancy, b-human chorionic gonadotropin, Methotrexate, Single injection.