Alterations in the sialylation and sulfation of secreted mouse thyrotropin in primary hypothyroidism

We investigated the effect of in , vivo hypothyroidism on the sialylation and sulfation of thyroid-stimulating hormone (TSH) secreted by mouse pituitary explants. Oligosaccharides from secreted thyroid-stimulating hormone from hypothyroid animals contained greater sialic acid relative to sulfate in...

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Veröffentlicht in:Biochemical and biophysical research communications 1989-03, Vol.159 (2), p.755-762
Hauptverfasser: DeCherney, G.Stephen, Gesundheit, Neil, Gyves, Peter W., Showalter, Claudia R., Weintraub, Bruce D.
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container_issue 2
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container_title Biochemical and biophysical research communications
container_volume 159
creator DeCherney, G.Stephen
Gesundheit, Neil
Gyves, Peter W.
Showalter, Claudia R.
Weintraub, Bruce D.
description We investigated the effect of in , vivo hypothyroidism on the sialylation and sulfation of thyroid-stimulating hormone (TSH) secreted by mouse pituitary explants. Oligosaccharides from secreted thyroid-stimulating hormone from hypothyroid animals contained greater sialic acid relative to sulfate in both α and β subunits. Aging per , se had little effect on thyroid-stimulating hormone sialylation or sulfation. Variable sialylation and sulfation demonstrates a mechanism for charge microheterogeneity of thyroid-stimulating hormone, and the increasing sialylation observed with hypothyroidism may functionally mediate the prolonged metabolic clearance that has been noted previously.
doi_str_mv 10.1016/0006-291X(89)90059-4
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Oligosaccharides from secreted thyroid-stimulating hormone from hypothyroid animals contained greater sialic acid relative to sulfate in both α and β subunits. Aging per , se had little effect on thyroid-stimulating hormone sialylation or sulfation. 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source MEDLINE; Access via ScienceDirect (Elsevier)
subjects Aging
Animals
Biological and medical sciences
Carbohydrate Conformation
Cell physiology
Chromatography, High Pressure Liquid
Fundamental and applied biological sciences. Psychology
Hormonal regulation
Hypothyroidism - metabolism
Hypothyroidism - physiopathology
Male
Mice
Mice, Inbred Strains
Molecular and cellular biology
Oligosaccharides - metabolism
Sialic Acids - metabolism
Sulfates - metabolism
thyroid
thyrotropin
Thyrotropin - metabolism
title Alterations in the sialylation and sulfation of secreted mouse thyrotropin in primary hypothyroidism
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