EsturgeonV1, Main, Merge, bibRecord, 001026

Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes

Identifieur interne : 001026 ( Main/Merge ); précédent : 001025; suivant : 001027

Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes

Auteurs : H. Zenkevics [Lettonie] ; M. Klavins [Lettonie] ; V. Vose [Lettonie] ; A. Bucena [Lettonie]

Source :

Aquatic toxicology [ 0166-445X ] ; 2005.

RBID : Pascal:06-0042657

Descripteurs français

Pascal (Inist)
- Gonadotrophine, Ovocyte, Milieu aquatique, Ecotoxicologie, Acide humique, Salientia, Rana temporaria.
Wicri :
- topic : Milieu aquatique.

English descriptors

KwdEn :
- Aquatic environment, Ecotoxicology, Gonadotropin, Humic acid, Oocyte, Rana temporaria, Salientia.

Abstract

The specific stimulatory effect of sturgeon Acipenser güldenstädti Br. gonadotropic hormone (GTH) on frog Rana temporaria L. oocyte maturation in vitro was investigated in relation to humic acid (HA) concentrations from 12.5 to 50 mg/l. HA was observed to bind to both the follicular membrane of the oocytes and the GTH molecule, reducing the oocytes' hormone sensitivity and maturation ability. It was also shown that HA inactivated GTH, lowering its specific ability to stimulate oocyte maturation.

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Pascal:06-0042657

Le document en format XML

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<author><name sortKey="Vose, V" sort="Vose, V" uniqKey="Vose V" first="V." last="Vose">V. Vose</name>
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<term>Rana temporaria</term>
<term>Salientia</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Gonadotrophine</term>
<term>Ovocyte</term>
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<term>Ecotoxicologie</term>
<term>Acide humique</term>
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<front><div type="abstract" xml:lang="en">The specific stimulatory effect of sturgeon Acipenser güldenstädti Br. gonadotropic hormone (GTH) on frog Rana temporaria L. oocyte maturation in vitro was investigated in relation to humic acid (HA) concentrations from 12.5 to 50 mg/l. HA was observed to bind to both the follicular membrane of the oocytes and the GTH molecule, reducing the oocytes' hormone sensitivity and maturation ability. It was also shown that HA inactivated GTH, lowering its specific ability to stimulate oocyte maturation.</div>
</front>
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Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes

Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri