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Statements

Subject Item
n2:RIV%2F60076658%3A12520%2F10%3A00011400%21RIV11-MSM-12520___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Parasitisation by the tapeworm Ligula intestinalis suppressed gonadal development in both genders of roach (Rutilus rutilus). Analysis of plasma sex steroids revealed substantially lower levels of 17 beta-oestradiol (E2) and 11-ketotestosterone (11-KT) in infected females as well as E2, 11-KT, and testosterone in infected males. In both, infected females and males, expression of the oestrogen dependent genes such as vitellogenin and brain-type aromatase in liver and brain was reduced. Furthermore, liver expression of oestrogen receptor 1 was reduced in infected females but not in males, whereas expression of oestrogen receptor 2a was up-regulated in both genders. Further, insulin-like growth factor 1 (IGF 1) mRNA in the liver was increased in infected females but not in males. The present results provide basic knowledge of the endocrine system in L. intestinalis-infected roach and clearly demonstrate that parasites can cause endocrine disruption in fish. Parasitisation by the tapeworm Ligula intestinalis suppressed gonadal development in both genders of roach (Rutilus rutilus). Analysis of plasma sex steroids revealed substantially lower levels of 17 beta-oestradiol (E2) and 11-ketotestosterone (11-KT) in infected females as well as E2, 11-KT, and testosterone in infected males. In both, infected females and males, expression of the oestrogen dependent genes such as vitellogenin and brain-type aromatase in liver and brain was reduced. Furthermore, liver expression of oestrogen receptor 1 was reduced in infected females but not in males, whereas expression of oestrogen receptor 2a was up-regulated in both genders. Further, insulin-like growth factor 1 (IGF 1) mRNA in the liver was increased in infected females but not in males. The present results provide basic knowledge of the endocrine system in L. intestinalis-infected roach and clearly demonstrate that parasites can cause endocrine disruption in fish.
dcterms:title
Naturally-induced endocrine disruption by the parasite Ligula intestinalis (Cestoda) in roach (Rutilus rutilus) Naturally-induced endocrine disruption by the parasite Ligula intestinalis (Cestoda) in roach (Rutilus rutilus)
skos:prefLabel
Naturally-induced endocrine disruption by the parasite Ligula intestinalis (Cestoda) in roach (Rutilus rutilus) Naturally-induced endocrine disruption by the parasite Ligula intestinalis (Cestoda) in roach (Rutilus rutilus)
skos:notation
RIV/60076658:12520/10:00011400!RIV11-MSM-12520___
n3:aktivita
n15:Z
n3:aktivity
Z(MSM6007665809)
n3:cisloPeriodika
2
n3:dodaniDat
n8:2011
n3:domaciTvurceVysledku
n17:3929809
n3:druhVysledku
n11:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
273879
n3:idVysledku
RIV/60076658:12520/10:00011400
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Endocrine disruption; Tapeworm; Reproduction; Biomarker; Fish; Roach; Rutilus rutilus; Vitellogenin; Aromatase; Oestrogens; Androgens
n3:klicoveSlovo
n4:Roach n4:Biomarker n4:Reproduction n4:Androgens n4:Vitellogenin n4:Endocrine%20disruption n4:Fish n4:Rutilus%20rutilus n4:Aromatase n4:Oestrogens n4:Tapeworm
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[8BC249BFC268]
n3:nazevZdroje
General and Comparative Endocrinology
n3:obor
n18:FB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n8:2010
n3:svazekPeriodika
166
n3:tvurceVysledku
Sures, B. Kloas, W. Kroupová, Hana Frank, S. N. Wuertz, S. Trubiroha, A.
n3:wos
000275781800003
n3:zamer
n9:MSM6007665809
s:issn
0016-6480
s:numberOfPages
7
n6:organizacniJednotka
12520