Radioimmunoassay of Calcitonin in Human Plasma
نویسندگان
چکیده
منابع مشابه
Radioimmunoassay of calcitonin in human plasma.
A sensitive, specific radioimmunoassay of calcitonin is described, suitable for measuring the hormone in peripheral plasma of normal man. With this assay we have demonstrated that calcitonin is detectable under basal Conditions and the concentrations respond to induced, and spontaneous hypercalcemia and induced hypocalcemia. The mean value for basal calcitonin of normal men was 182 pg/mI (range...
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Many pituitary hormones possess partial or complete immunological species specificity. Earlier reports suggested that thyrotropin (TSH) did not have such specificity since the biological activity of human pituitary or plasma TSH could be neutralized by antisera to bovine TSH in doses similar to that which blocked the biological activity of bovine TSH (2, 3). However, recent studies have shown t...
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A radioimmunoassay procedure for determination of somatostatin immunoactivity in human plasma is described. Labelling of tyrosine-1-somatostatin is performed by chloramine T. Specific activity of the tracer is 1.34 mol iodine for 1 mol of somatostatin. The immunoreactivity is 85%. Antisera are produced in rabbits at a titre of 179 X 10(-12) mol somatostatin per ml antiserum. Human plasma is ext...
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A radioimmunoassay for human plasma retinol-binding protein (RBP) has been developed utilizing a double antibody precipitation technique. RBP was purified 1500- to 2000-fold by procedures described previously. A specific anti-human RBP antiserum was prepared in rabbits by three once-weekly injections of purified RBP emulsified with Freund's adjuvant. RBP was iodinated with (131)I and the RBP-(1...
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Homogeneous, single-chain human factor V was used to develop a double antibody competition radioimmunoassay to measure factor V concentrations in plasma and platelets. Standard curves were constructed that allow for the detection of as little as 20 ng factor V/ml of plasma. Normal factor V concentrations range from 4 to 14 micrograms/ml of plasma with an average value of 7.0 +/- 2.0 micrograms/...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 1974
ISSN: 0009-9147,1530-8561
DOI: 10.1093/clinchem/20.3.337