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Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes

Identifieur interne : 000227 ( PascalFrancis/Corpus ); précédent : 000226; suivant : 000228

Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes

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

Source :

RBID : Pascal:06-0042657

Descripteurs français

English descriptors

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.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
A01 01  1    @0 0166-445X
A02 01      @0 AQTODG
A03   1    @0 Aquat. toxicol.
A05       @2 75
A06       @2 4
A08 01  1  ENG  @1 Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes
A11 01  1    @1 ZENKEVICS (H.)
A11 02  1    @1 KLAVINS (M.)
A11 03  1    @1 VOSE (V.)
A11 04  1    @1 BUCENA (A.)
A14 01      @1 Institute of Biology, University of Latvia, Miera Street 3 @2 2169, Salaspils @3 LVA @Z 1 aut. @Z 3 aut. @Z 4 aut.
A14 02      @1 Department of Environmental Science, University of Latvia, Raina bh'd. 19 @2 1586, Riga @3 LVA @Z 2 aut.
A20       @1 380-383
A21       @1 2005
A23 01      @0 ENG
A43 01      @1 INIST @2 18841 @5 354000135696040080
A44       @0 0000 @1 © 2006 INIST-CNRS. All rights reserved.
A45       @0 14 ref.
A47 01  1    @0 06-0042657
A60       @1 P @3 CC
A61       @0 A
A64 01  1    @0 Aquatic toxicology
A66 01      @0 NLD
C01 01    ENG  @0 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.
C02 01  X    @0 002A14B02C2B
C02 02  X    @0 002A15C
C03 01  X  FRE  @0 Gonadotrophine @5 01
C03 01  X  ENG  @0 Gonadotropin @5 01
C03 01  X  SPA  @0 Gonadotropina @5 01
C03 02  X  FRE  @0 Ovocyte @5 02
C03 02  X  ENG  @0 Oocyte @5 02
C03 02  X  SPA  @0 Ovocito @5 02
C03 03  X  FRE  @0 Milieu aquatique @5 03
C03 03  X  ENG  @0 Aquatic environment @5 03
C03 03  X  SPA  @0 Medio acuático @5 03
C03 04  X  FRE  @0 Ecotoxicologie @5 04
C03 04  X  ENG  @0 Ecotoxicology @5 04
C03 04  X  SPA  @0 Ecotoxicología @5 04
C03 05  X  FRE  @0 Acide humique @2 NK @5 41
C03 05  X  ENG  @0 Humic acid @2 NK @5 41
C03 05  X  SPA  @0 Acido húmico @2 NK @5 41
C03 06  X  FRE  @0 Salientia @2 NS @5 49
C03 06  X  ENG  @0 Salientia @2 NS @5 49
C03 06  X  SPA  @0 Salientia @2 NS @5 49
C03 07  X  FRE  @0 Rana temporaria @2 NS @5 50
C03 07  X  ENG  @0 Rana temporaria @2 NS @5 50
C03 07  X  SPA  @0 Rana temporaria @2 NS @5 50
C07 01  X  FRE  @0 Amphibia @2 NS
C07 01  X  ENG  @0 Amphibia @2 NS
C07 01  X  SPA  @0 Amphibia @2 NS
C07 02  X  FRE  @0 Vertebrata @2 NS
C07 02  X  ENG  @0 Vertebrata @2 NS
C07 02  X  SPA  @0 Vertebrata @2 NS
C07 03  X  FRE  @0 Ranidae @2 NS
C07 03  X  ENG  @0 Ranidae @2 NS
C07 03  X  SPA  @0 Ranidae @2 NS
N21       @1 016

Format Inist (serveur)

NO : PASCAL 06-0042657 INIST
ET : Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes
AU : ZENKEVICS (H.); KLAVINS (M.); VOSE (V.); BUCENA (A.)
AF : Institute of Biology, University of Latvia, Miera Street 3/2169, Salaspils/Lettonie (1 aut., 3 aut., 4 aut.); Department of Environmental Science, University of Latvia, Raina bh'd. 19/1586, Riga/Lettonie (2 aut.)
DT : Publication en série; Courte communication, note brève; Niveau analytique
SO : Aquatic toxicology; ISSN 0166-445X; Coden AQTODG; Pays-Bas; Da. 2005; Vol. 75; No. 4; Pp. 380-383; Bibl. 14 ref.
LA : Anglais
EA : 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.
CC : 002A14B02C2B; 002A15C
FD : Gonadotrophine; Ovocyte; Milieu aquatique; Ecotoxicologie; Acide humique; Salientia; Rana temporaria
FG : Amphibia; Vertebrata; Ranidae
ED : Gonadotropin; Oocyte; Aquatic environment; Ecotoxicology; Humic acid; Salientia; Rana temporaria
EG : Amphibia; Vertebrata; Ranidae
SD : Gonadotropina; Ovocito; Medio acuático; Ecotoxicología; Acido húmico; Salientia; Rana temporaria
LO : INIST-18841.354000135696040080
ID : 06-0042657

Links to Exploration step

Pascal:06-0042657

Le document en format XML

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   |étape=   Corpus
   |type=    RBID
   |clé=     Pascal:06-0042657
   |texte=   Humic acid reduces gonadotropin activity and hormonal sensitivity of frog oocytes
}}

Wicri

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