نتایج جستجو برای: HCG

تعداد نتایج: 5851  

2017
Laurence A. Cole

hCG exists in two analogous structures, as typified by the hormone hCG which binds an LH/hCG hormone receptor and the TGFß receptor binding autocrine hyperglycosylated hCG. Both share a common α-subunit and ß-subunit amino acid sequence. From the common hormone hCG and autocrine hyperglycosylated hCG structures there are seven common hCG variants with wildly varying hormone hCG or autocrine hyp...

Journal: :Clinical chemistry 2001
S A Butler S A Khanlian L A Cole

BACKGROUND Home pregnancy testing devices claim >99% diagnostic accuracy for pregnancy and utility on the first day of the missed menses or earlier. We investigated the forms of human chorionic gonadotropin (hCG) in early pregnancy urines, the diagnostic accuracy claim, and the abilities of 15 devices to detect the different forms of hCG. METHODS We measured the concentrations of regular hCG ...

Journal: :Clinical chemistry 1990
B Saller R Clara G Spöttl K Siddle K Mann

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...

Journal: :Clinical chemistry 2012
Anna Lempiäinen Kristina Hotakainen Carl Blomqvist Henrik Alfthan Ulf-Håkan Stenman

BACKGROUND Hyperglycosylated human chorionic gonadotropin (hCG-h) contains larger and more complex carbohydrate chains than regular human chorionic gonadotropin (hCG). hCG-h is thought to be the major form of hCG produced by testicular cancers and it has been suggested to play a key role in tumor invasion, but studies on hCG-h in testicular cancer are limited. We studied whether serum hCG is hy...

Journal: :Clinical chemistry 2004
Laurence A Cole Jaime M Sutton Trefor N Higgins George S Cembrowski

BACKGROUND Results on sera and calibrators vary 1.4- to 2.3-fold among commercial human chorionic gonadotropin (hCG) assays. The relative contributions of calibrators, standards, hCG charge isoforms, and major structural variants to this variation have not been quantified. METHODS Purified hCG was separated by isoelectric focusing into four fractions with pI ranges of 3-4, 4-5, 5-6, and 6-7. ...

Journal: :Cancer research 1992
R Hoermann A L Gerbes G Spoettl D Jüngst K Mann

Human chorionic gonadotropin (hCG) is a clinically relevant marker of trophoblastic and nontrophoblastic malignancies. In the present studies, in addition to determining serum hCG, we investigated the presence and properties of hCG immunoreactivity in ascites of patients with nontrophoblastic malignant tumors and, for comparison, in ascites caused by cirrhotic liver disease. Total hCG immunorea...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده کشاورزی 1392

هدف از این مطالعه بررسی استراتژی های بهبود باروری گاوهای شیری پس از تلقیح مصنوعی در فصل تابستان با استفاده از ترکیبات هورمونی و آنتی اکسیدانی بود. برای این منظور از 100 راس گاو شیری چند شکم زایش و آماده برای اولین نوبت تلقیح در چهار گروه آزمایشی استفاده شد. تیمارهای آزمایشی شامل: 1- بدون تزریق (کنترل)، 2- گروه دریافت کننده مکمل تزریقی ad3e همزمان با تلقیح مصنوعی (ad3e)، 3- گروه دریافت کننده gnr...

Journal: :Clinical chemistry 1992
L A Cole A Kardana

Discordance has been reported in human chorionic gonadotropin (hCG) concentrations measured by different immunoassay kits. We examined the results for 40 serum samples assayed with 10 different hCG immunoassay kits. Results varied considerably. Individual sample results varied by as much as 58-fold. Average results for different kits varied by as much as 1.4-fold for pregnancy (20 samples) and ...

Journal: :Clinical chemistry 2008
Zhimin Tim Cao Robert Rej

BACKGROUND Human chorionic gonadotropin (hCG) is a heterodimeric glycoprotein hormone that exists in multiple forms. Immunoassays commonly used in clinical laboratories measure intact hCG, total beta hCG (intact hCG + hCG free beta-subunit), and/or hCG free beta-subunit. Measurement of serum concentrations of hCG is useful for confirmation and monitoring of pregnancy, diagnosis of trophoblastic...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید