Action of KI and several iodocompounds on [3H]uridine incorporation into thyroid RNA

The present studies were performed in order to further clarify the action of iodine and iodocompounds on the incorporation of labelled uridine into thyroid RNA. KI decreased RNA labelling but did not alter total (3H) uridine uptake or (3H) inulin distribution space. KI also inhibited the increase in...

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Detalles Bibliográficos
Autor principal: Kleiman De Pisarev, D.L
Otros Autores: Pisarev, Mario Alberto, Juvenal, G.J
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1978
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
Aporte de:Registro referencial: Solicitar el recurso aquí
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024 7 |2 scopus  |a 2-s2.0-0018145281 
024 7 |2 cas  |a liothyronine, 6138-47-2, 6893-02-3; potassium iodide, 7681-11-0; RNA, 63231-63-0; thyroxine, 7488-70-2; Cyclic AMP, 60-92-4; Cyclic GMP, 7665-99-8; Glucose, 50-99-7; Inulin, 9005-80-5; Iodides; Iodoacetates; Potassium Iodide, 7681-11-0; RNA, 63231-63-0; Thyroxine, 7488-70-2; Triiodothyronine, Reverse, 5817-39-0; Tritium, 10028-17-8; Uridine, 58-96-8 
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040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
100 1 |a Kleiman De Pisarev, D.L. 
245 1 0 |a Action of KI and several iodocompounds on [3H]uridine incorporation into thyroid RNA 
260 |c 1978 
506 |2 openaire  |e Política editorial 
520 3 |a The present studies were performed in order to further clarify the action of iodine and iodocompounds on the incorporation of labelled uridine into thyroid RNA. KI decreased RNA labelling but did not alter total (3H) uridine uptake or (3H) inulin distribution space. KI also inhibited the increase in RNA labelling produced by 8mM glucose. T4 was more potent on a molar basis than KI in impairing uridine incorporation. TETRAC,TRIAC and isopropyl-T3 also decreased RNA labelling, while T2 and isopropyl-T2 were ineffective. KI did not alter the distribution of the uridine derivatives, UMP,UDP and UTP, as determined by the distribution of (3H) uridine in these compounds by paper chromatography, suggesting that the action of KI does not take place at the step of uridine phosphorylation. Like its effect on TSH, KI also impairs the stimulatory effect of exogenous cAMP and cGMP on RNA labelling, suggesting that its action is exerted beyond the step of cyclic nucleotide formation. Iodine and iodocompounds may exert their inhibitory action on RNA labelling at the step of nucleotide polymerization.  |l eng 
593 |a Lab. Bioquim. Nucl., Com. Nac. Ener. Atom., Fac. Ci. Exactas Nat., Univ. Buenos Aires, Argentina 
690 1 0 |a ACETIC ACID DERIVATIVE 
690 1 0 |a IODINE DERIVATIVE 
690 1 0 |a LIOTHYRONINE 
690 1 0 |a POTASSIUM IODIDE 
690 1 0 |a RADIOISOTOPE 
690 1 0 |a RNA 
690 1 0 |a THYROXINE 
690 1 0 |a 3 ISOPROPYL 5,3,5 TRIIODOTHYRONINE 
690 1 0 |a 3,5 DIIODO 3' ISOPROPYLTHYRONINE 
690 1 0 |a ANIMAL EXPERIMENT 
690 1 0 |a CATTLE 
690 1 0 |a ENDOCRINE SYSTEM 
690 1 0 |a IN VITRO STUDY 
690 1 0 |a INULIN H 3 
690 1 0 |a RNA SYNTHESIS 
690 1 0 |a THYROID GLAND 
690 1 0 |a TRIIODOACETIC ACID 
690 1 0 |a URIDINE H 3 
690 1 0 |a ANIMAL 
690 1 0 |a CATTLE 
690 1 0 |a CYCLIC AMP 
690 1 0 |a CYCLIC GMP 
690 1 0 |a GLUCOSE 
690 1 0 |a INULIN 
690 1 0 |a IODIDES 
690 1 0 |a IODOACETATES 
690 1 0 |a POTASSIUM IODIDE 
690 1 0 |a RNA 
690 1 0 |a THYROID GLAND 
690 1 0 |a THYROXINE 
690 1 0 |a TRIIODOTHYRONINE, REVERSE 
690 1 0 |a TRITIUM 
690 1 0 |a URIDINE 
700 1 |a Pisarev, Mario Alberto 
700 1 |a Juvenal, G.J. 
773 0 |d 1978  |g v. 89  |h pp. 316-322  |k n. 2  |p ACTA ENDOCRINOL.  |x 00015598  |t Acta Endocrinologica 
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856 4 0 |u https://hdl.handle.net/20.500.12110/paper_00015598_v89_n2_p316_KleimanDePisarev  |y Handle 
856 4 0 |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00015598_v89_n2_p316_KleimanDePisarev  |y Registro en la Biblioteca Digital 
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962 |a info:eu-repo/semantics/article  |a info:ar-repo/semantics/artículo  |b info:eu-repo/semantics/publishedVersion