An in vitro procedure for the estimation of thyroid hormone releasing factors in sera of thyrotoxic patients.

Abstract:

:LATS containing sera and a number of Graves' disease sera stimulated T4 release from mouse thyroids in vitro as determined by RIA, thus confirming the presence of a thyroid hormone releasing factor in sera of thyrotoxic patients. The pattern of stimulation was similar to that previously shown for TSH in terms of T4 release time sequence. cAMP increase and catecholamine inhibition via alpha-adrenergic receptors. In the same in vitro system, neutralization with a human thyroid homogenate showed presence of LATS-Protector (LPA) in LATS negative thyrotoxic sera. The present study describes a simpler procedure for estimating LATS or similar activity, as compared to the McKenzie assay, and suggests identical receptor sites for TSH and other thyroid stimulators.

journal_name

J Endocrinol Invest

authors

Maayan ML,Volpert EM,Dawry FP

doi

10.1007/BF03350973

subject

Has Abstract

pub_date

1978-10-01 00:00:00

pages

299-304

issue

4

eissn

0391-4097

issn

1720-8386

journal_volume

1

pub_type

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