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Kinetics of deoxyribonucleic acid synthesis and replication of thyrotrophs and somatotrophs during development of hypothyroidism and L-triiodothyronine treatment of hypothyroid rats.

Astier, H S; DeFesi, C R; Surks, M I.

Endocrinology ; 106(5): 1537-48, 1980 May.

Article in English | MEDLINE | ID: mdl-7363861

Subject(s)

DNA Replication/drug effects , DNA/biosynthesis , Hypothyroidism/metabolism , Pituitary Gland, Anterior/metabolism , Triiodothyronine/pharmacology , Animals , Growth Hormone/metabolism , Histocytochemistry , Kinetics , Male , Microscopy, Electron , Pituitary Gland, Anterior/drug effects , Pituitary Gland, Anterior/ultrastructure , Rats , Thymidine/metabolism , Thyroidectomy , Thyrotropin/metabolism

Kinetics of thyrotrophs and somatotrophs during development of hypothyroidism and L-triiodothyronine treatment of hypothyroid rats.

DeFesi, C R; Astier, H S; Surks, M I.

Endocrinology ; 104(4): 1172-80, 1979 Apr.

Article in English | MEDLINE | ID: mdl-436756

Subject(s)

Hypothyroidism/physiopathology , Pituitary Gland, Anterior/physiopathology , Triiodothyronine/pharmacology , Animals , Cell Count , DNA/metabolism , Kinetics , Organ Size , Pituitary Gland, Anterior/cytology , Pituitary Gland, Anterior/drug effects , Rats , Thyroidectomy , Thyrotropin/physiology

Estimation of plasma thyroxine concentration in ducks in relation to different environmental and experimental conditions.

Astier, H S; Daniel, J Y; Jallageas, M.

Experientia ; 34(9): 1228-30, 1978 Sep 15.

Article in English | MEDLINE | ID: mdl-102525

ABSTRACT

Plasma thyroxine concentration was measured in ducks by the thyroxine-binding globulin technique. The assay allowed us to detect annual variations in thyroid activity as well as significant changes after starvation or cold exposure. No detectable thyroxine was formed in surgically thyroidectomized ducks.

Subject(s)

Ducks/blood , Thyroxine/blood , Animals , Binding, Competitive , Cold Temperature , Environment , Seasons , Starvation/metabolism , Thyroidectomy , Thyroxine-Binding Proteins/metabolism

Extrathyroidal conversion of thyroxine to triiodothyronine in a bird: the Peking duck.

Astier, H S; Newcomer, W S.

Gen Comp Endocrinol ; 35(4): 496-9, 1978 Aug.

Article in English | MEDLINE | ID: mdl-720818

Subject(s)

Ducks/metabolism , Thyroxine/metabolism , Triiodothyronine/biosynthesis , Animals , Thyroidectomy , Thyroxine/blood , Triiodothyronine/blood

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