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Plummer effect

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The three different mechanisms of high iodine response, the Plummer effect, the Wolff-Chaikoff inhibition effect, and the adaptive escape phenomenon, synergistically work together to fend off potentially harmful consequences of excess iodine load and ensure thyroid homeostasis.
396:"Iodine Content and Distribution in Thyroid Specimens from Two Patients with Graves' Disease Pretreated with Either Propylthiouracil or Stable Iodine: Analysis Using X-Ray Fluorescence and Time-of-Flight Secondary Ion Mass Spectrometry" 111:. Therefore, "plummering" with high-dose iodine is only effective in a short time window after the release of radionuclides. Wrong timing of iodine use may even increase the risk by triggering the Plummer effect. 470:
Zanzonico, PB; Becker, DV (June 2000). "Effects of time of administration and dietary iodine levels on potassium iodide (KI) blockade of thyroid irradiation by 131I from radioactive fallout".
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The Plummer effect is, however, helpful in the management of thyrotoxicosis, where the usage of Lugol’s solution helps to limit the release of thyroid hormones into the bloodstream.
84:, where iodine inhibits the uptake of iodine in thyroid cells and the formation of thyroid hormones, and of the dehalogenase inhibition effect, where high iodine levels block 353:
Solis-S, JC; Villalobos, P; Orozco, A; Delgado, G; Quintanar-Stephano, A; Garcia-Solis, P; Hernandez-Montiel, HL; Robles-Osorio, L; Valverde-R, C (January 2011).
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Unlike the Wolff–Chaikoff effect, the Plummer effect does not prevent the thyroid from taking up radioactive iodine, e.g. in the case of
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The Plummer effect lasts about 7 to 10 days, but unlike the Wolff-Chaikoff effect, it isn't subject to an escape phenomenon.
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Via the Plummer effect, a high iodine concentration inhibits the proteolysis of thyroglobulin and the release of pre-formed
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Nyström, Ernst; Berg, Gertrud E. B.; Jansson, Svante K. G.; Törring, Ove; Valdemarsson, Stig V. (2011).
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Meristoudis, G; Ilias, I (June 2022). "Caveats in the use of potassium iodide for thyroid blocking".
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Plummer, HS (30 June 1923). "Results of administering iodin to patients having exophthalmic goiter".
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Compensatory mechanisms preventing thyrotoxicosis in oversupply with iodine, including the
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Reyes-Castano, John J.; Burman, Kenneth (2014). "Thyrotoxic Crisis: Thyroid Storm".
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Saller, B; Fink, H; Mann, K (1998). "Kinetics of acute and chronic iodine excess".
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Hansson, M; Filipsson Nyström, H; Jansson, S; Lausmaa, J; Berg, G (2012).
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Loriaux, D. Lynn (March 2016). "A Biographical History of Endocrinology".
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from thyroid follicles. Therefore, its mechanism differs from that of the
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discovered that high-dose iodine may be effective in the treatment of
49: 352: 24:, the Plummer effect and the dehalogenase inhibition effect 515:
European Journal of Nuclear Medicine and Molecular Imaging
444: 355:"Inhibition of intrathyroidal dehalogenation by iodide" 581: 324:
Experimental and Clinical Endocrinology & Diabetes
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JAMA: The Journal of the American Medical Association
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Index


Wolff-Chaikoff effect
feedforward
follicular cells
thyroid gland
thyrotoxicosis
iodine
Henry Stanley Plummer
Graves’ disease
thyroid hormones
Wolff–Chaikoff effect
deiodinases
dehalogenases
nuclear emergencies
Jod-Basedow phenomenon
Potassium iodide
Lugol's iodine
Wolff–Chaikoff effect


"Intrathyroidal feedforward and feedback network regulating thyroid hormone synthesis and secretion"
doi
10.3389/fendo.2022.992883
PMC
9519864
PMID
36187113
doi
10.1001/jama.1923.02640530065026
doi

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