Intact HCG, free HCG β subunit and HCG β core fragment: longitudinal patterns in urine during early pregnancy
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چکیده
منابع مشابه
Human choriogonadotropin (hCG): comparisons between determinations of intact hCG, free hCG beta-subunit, and "total" hCG + beta in serum during the first half of high-risk pregnancy.
We have studied the concentrations of intact human choriogonadotropin (hCG) and the free hCG beta-subunit in blood samples from singleton pregnancies at risk for habitual or threatened abortion. The samples were obtained weekly between the 6th and 12th weeks and in the 14th and 16th weeks of gestational age. The concentrations of intact hCG, of the free hCG beta-subunit, and of "total" hCG (i.e...
متن کامل"Tandem ICON hCG" urine pregnancy test evaluated.
492 CLINICAL CHEMISTRY, Vol.31, No. 3, 1985 1. Fishlock RC, Bieber LL, Snoswell AM. Sources of error in determinations of carnitine and acylcarnitine in plasma. Clin Chem 30, 316-318 (1984). 2. Brass EP, Hoppel CL. Carnitine metabolism in the fasting rat. J Biol Chem 253, 2688-2693 (1978). 3. Genuth SM, Hoppel CL. Plasma and urine carnitine in diabetic ketosis. Diabetes 28, 1083-1087 (1978). 4....
متن کاملTesticular cancer secretes intact human choriogonadotropin (hCG) and its free beta-subunit: evidence that hCG (+hCG-beta) assays are the most reliable in diagnosis and follow-up.
Human choriogonadotropin (hCG) and free hCG-beta values for 934 serum samples from patients with seminomatous or nonseminomatous testicular cancer were measured by highly specific immunoradiometric assays (IRMAS). In non-seminoma samples, hCG and hCG-beta were highly correlated (r = 0.82, P less than 0.001). Of 112 "marker-positive" seminoma samples, only 46 (41.1%) showed both increased hCG an...
متن کاملMolar Pregnancy with False Negative β-hCG Urine in the Emergency Department
This case describes an atypical presentation of molar pregnancy in an emergency department patient with abdominal pain and vaginal bleeding. The patient demonstrated clinical features of hydatidiform mole, including acute discharge of a large, grape-like vesicular mass, despite multiple negative urine pregnancy tests. These false-negative qualitative human chorionic gonadotropin assays were lik...
متن کاملReevaluation of discriminatory and threshold levels for serum β-hCG in early pregnancy.
OBJECTIVES To reevaluate both discriminatory and threshold levels associated with visualization of gestational sacs, yolk sacs, and fetal poles in patients presenting with vaginal bleeding, pain, or vaginal bleeding and pain in the first trimester of pregnancy using current ultrasonographic technology. METHODS We reviewed the records of patients with first-trimester vaginal bleeding, pelvic p...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 2005
ISSN: 1460-2350,0268-1161
DOI: 10.1093/humrep/deh702