Results 101 to 110 of about 2,969 (182)

Catalytic detection principle for high-performance liquid chromatography: Determination of enantiomeric iodinated thyronines in blood serum

, 1981
E. Lankmayr, B. Maichin, G. Knapp, F. Nachtmann   +3 more
semanticscholar   +2 more sources

Isoniazid-mediated irreversible inhibition of the myeloperoxidase antimicrobial system of the human neutrophil and the effect of thyronines.

Biochemical Pharmacology, 1989
During aerobic myeloperoxidase-catalysed oxidation of isoniazid at pH 7.8, compound III was generated. Oxidation of isoniazid or hydrazine sulphate at pH valu7es of 6.5 or 7.8 in a myeloperoxidase-H2O2 system caused considerable haem loss, which was ...
J. V. van Zyl, K. Basson, R. Uebel, B. J. van der Walt   +3 more
semanticscholar   +2 more sources

Effects of iodotyrosines, thyronines, iodothyroacetic acids and thyromimetic analogues on in vitro copper-induced oxidation of low-density lipoproteins.

Biochemical Pharmacology, 1998
P. Chomard, C. Séguin, Annie Loireau, N. Autissier, Y. Artur   +4 more
semanticscholar   +2 more sources

Development of a validated liquid chromatography/tandem mass spectrometry method for the distinction of thyronine and thyronamine constitutional isomers and for the identification of new deiodinase substrates.

Rapid Communications in Mass Spectrometry, 2008
Thyronines (THs) and thyronamines (TAMs) are two groups of endogenous iodine-containing signaling molecules whose representatives differ from each other only regarding the number and/or the position of the iodine atoms.
S. Piehl, T. Heberer, G. Balizs, T. Scanlan, J. Köhrle   +4 more
semanticscholar   +2 more sources

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Inhibition of low density lipoprotein oxidation by thyronines and probucol.

Biochemical Pharmacology, 1993
Oxidation of low density lipoproteins (LDL) results in increased macrophage uptake of LDL which may contribute to the formation of macrophage-derived foam cells in the early atherosclerotic lesion. In this study we show that thyroxine (T4), its optical antipodes, certain desiodo analogs and probucol inhibited cupric sulfate-catalyzed oxidation of human
A. N. Hanna, Dennis R. Feller, D. Witiak, H. A. Newman   +3 more
semanticscholar   +3 more sources

Thyroidal Thyronine and Non-Thyronine Iodine Secretion in Euthyroid Subjects

The Journal of Clinical Endocrinology & Metabolism, 1971
ABSTRACT Thyroidal non-thyronine iodine secretion was quantified in 22 euthyroid adult Arkansas subjects by measuring, simultaneously, thyroidal iodine accumulation A, thyroxine iodine turnover H4 and triiodothyronine iodine turnover H3. Non-thyronine iodine secretion was calculated as A-H4-H3.
D A, Fisher, T H, Oddie, C S, Thompson
openaire   +2 more sources

Thyronin‐ und thyroxinähnliche Aminoalkohole, II

Archiv der Pharmazie, 1966
AbstractEs werden drei Wege zur Synthese des D,L‐threo‐1‐[4′(p‐Hydroxyphenoxy)‐phenyl]‐1‐hydroxy‐2‐amino‐propans beschrieben, die eine stereospezifische Reduktion der Ausgangsketone nach verschiedenen Methoden gemeinsam haben: Racem. p‐Hydroxyphenoxy‐α‐phthalimidopropiophenon bildet bei einer modifizierten, racem.
H. K. Müller, G. Rieck
openaire   +1 more source

Some biological actions of iodo-L-thyronines.

Journal of Endocrinology, 1960
SUMMARY Six iodo-l-thyronines, viz. 3:3′:5′-triiodo-, 3:5-diiodo-, 3:3′-diiodo-, 3′:5′-diiodo-, 3-monoiodo-, and 3′-monoiodo-l-thyronine, have been compared with 3:5:3′-triiodo-l-thyronine, in mice by an anoxia method and in rats for antigoitrogenic activities and effects on rate of oxygen consumption.
E. Tomich, E. A. Woollett, M. A. Pratt
semanticscholar   +3 more sources

THE ROLE OF THYRONINE IN THYROID HORMONE METABOLISM

The Journal of Clinical Endocrinology & Metabolism, 1979
Thryonine (T0) has been identified in human urine using gas chromatography-mass fragmentography (G.C.M.F.). In 22 normal individuals urinary T0 concentration was found to range between 8--25 nmol/24h. Assuming the mean normal thyroxine (T4) production rate to be approximately 100 nmol/24h, our findings indicate that less than 20% of this could be ...
P, Willetts, D N, Crossley, D B, Ramsden, R, Hoffenberg   +3 more
openaire   +2 more sources

THE THYROMIMETIC EFFECTS OF D-TRICHLOR-THYRONINE

Journal of Endocrinology, 1964
SUMMARY Various aspects of thyroid activity of a non-iodine-containing thyroid analogue, 3:5:3′-trichloro-d-thyronine (d-trichlor-thyronine = d-ClT3) have been studied and compared with those of 3:5:3′-triiodo-l-thyronine (l-triiodo-thyronine = l-T3).
N W, OAKLEY, K, ADADEVEOH, P, WISE
openaire   +2 more sources