Hematopoiesis Shows Closer Correlation with Calculated Free Testosterone in Men than Total Testosterone
نویسندگان
چکیده
منابع مشابه
Validity of serum testosterone, free androgen index, and calculated free testosterone in women with suspected hyperandrogenism.
OBJECTIVES There are technical limitations for the currently available methods of measuring serum total and free testosterone in females. The study objectives were to evaluate the usefulness of serum total testosterone, sex hormone-binding globulin (SHBG), free androgen index (FAI), and calculated free testosterone (CFT) in the assessment of androgen status in women investigated for suspected h...
متن کاملDetermined Free Serum Testosterone is Better than Total Testosterone as a Predictor of Prostate Cancer Risk
Background: Circulating testosterone remains the main source of androgens, however only 1%-2% circulates as free testosterone (fT), hormone active form. To compare the performance of serum fT and total testosterone (tT) as predictors of prostate cancer (PCa) detection and aggressiveness. Methods: Serum fT (RIA, pg/mL) and tT (LC/MS, ng/dL) were prospectively determined in 3364 consecutive men w...
متن کاملAssociations of total testosterone, sex hormone-binding globulin, calculated free testosterone, and luteinizing hormone with prevalence of abdominal aortic aneurysm in older men.
CONTEXT Abdominal aortic aneurysm (AAA) is associated with mortality in older adults, and increasing aortic diameter predicts incident cardiovascular events. Although AAA occurs predominantly in men, its association with male sex hormones is unclear. OBJECTIVE The objective of the study was to examine whether male sex hormones are independently associated with AAA or increased abdominal aorti...
متن کاملAnalog-based free testosterone test results linked to total testosterone concentrations, not free testosterone concentrations.
BACKGROUND Analog-based free testosterone test results, sex hormone binding globulin (SHBG) concentrations, and total testosterone concentrations are somehow related. This study used new experiments to clarify these relationships. METHODS An analog-based free testosterone immunoassay and a total testosterone immunoassay were applied to well-defined fractions of serum testosterone. First, they...
متن کاملTestosterone, sex hormone-binding globulin, calculated free testosterone, and oestradiol in male vegans and omnivores.
Total testosterone (T), total oestradiol (E2) and sex hormone-binding globulin (SHBG) concentrations were measured in plasma samples from fifty-one male vegans and fifty-seven omnivores of similar age. Free T concentration was estimated by calculation. In comparison with the omnivores, the vegans had 7% higher total T (P = 0.250), 23% higher SHBG (P = 0.001), 3% lower free T (P = 0.580), and 11...
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ژورنال
عنوان ژورنال: The Journal of Applied Laboratory Medicine: An AACC Publication
سال: 2016
ISSN: 2475-7241
DOI: 10.1373/jalm.2016.022012