The presence of monoiodinated derivates of daidzein and genistein in human urine and its effect on thyroid gland function

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F12%3A43894073" target="_blank" >RIV/60461373:22330/12:43894073 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00023761:_____/12:#0000233

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.fct.2012.05.037" target="_blank" >http://dx.doi.org/10.1016/j.fct.2012.05.037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fct.2012.05.037" target="_blank" >10.1016/j.fct.2012.05.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The presence of monoiodinated derivates of daidzein and genistein in human urine and its effect on thyroid gland function

Popis výsledku v původním jazyce

Dietary supplements used by women during menopause are usually based on plant extracts containing isoflavonoids, daidzein and genistein. Genistein is a known inhibitor of many enzymes, including thyroid peroxidase (TPO). In the thyroid follicle, genistein acts as its alternate substrate for the formation of genistein iodinated derivatives. The aim of this study was to search for daidzein- and genistein-iodinated derivatives in urine of isoflavonoid-supplemented women. Additionally, selected phytoestrogens, steroid and thyroid hormones before and after three months of phytoestrogen supplementation were estimated. Urinary levels of free phytoestrogen increased significantly after therapy. They ranged between 0.3-1600, 0.6-670 and 0-206 nmol/L for daidzein, genistein and S-equol, respectively. Monoiodinated derivatives of genistein were observed (0-504 pmol/L) in 60% of the investigated samples. Steroid and thyroid hormone levels were within the normal range and were not significantly alt

Název v anglickém jazyce

The presence of monoiodinated derivates of daidzein and genistein in human urine and its effect on thyroid gland function

Popis výsledku anglicky

Dietary supplements used by women during menopause are usually based on plant extracts containing isoflavonoids, daidzein and genistein. Genistein is a known inhibitor of many enzymes, including thyroid peroxidase (TPO). In the thyroid follicle, genistein acts as its alternate substrate for the formation of genistein iodinated derivatives. The aim of this study was to search for daidzein- and genistein-iodinated derivatives in urine of isoflavonoid-supplemented women. Additionally, selected phytoestrogens, steroid and thyroid hormones before and after three months of phytoestrogen supplementation were estimated. Urinary levels of free phytoestrogen increased significantly after therapy. They ranged between 0.3-1600, 0.6-670 and 0-206 nmol/L for daidzein, genistein and S-equol, respectively. Monoiodinated derivatives of genistein were observed (0-504 pmol/L) in 60% of the investigated samples. Steroid and thyroid hormone levels were within the normal range and were not significantly alt

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FB - Endokrinologie, diabetologie, metabolismus, výživa

OECD FORD obor

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Projekt

<a href="/cs/project/GA303%2F08%2F0958" target="_blank" >GA303/08/0958: Fytoestrogeny jako alternativa hormonální substituční terapie - studium účinnosti a bezpečnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

FOOD AND CHEMICAL TOXICOLOGY

ISSN

0278-6915

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

2774-2779

Kód UT WoS článku

000308255800028

EID výsledku v databázi Scopus

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