Regulation of Arctic char (Salvelinus alpinus) egg shell proteins and vitellogenin during reproduction and in response to 17β-estradiol and cortisol

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Fältnamn	Indikatorer	Metadata
000		03774naa a2200481 4500
001		oai:DiVA.org:umu-2989
003		SwePub
008		031118s2004 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
009		oai:DiVA.org:oru-8842
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-29892 URI
024	7	a https://doi.org/10.1016/j.ygcen.2003.10.0042 DOI
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-88422 URI
040		a (SwePub)umud (SwePub)oru
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Berg, A. H.u Örebro universitet,Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Akademin för naturvetenskap och teknik4 aut0 (Swepub:oru)hnbg
245	1 0	a Regulation of Arctic char (Salvelinus alpinus) egg shell proteins and vitellogenin during reproduction and in response to 17β-estradiol and cortisol
264	1	b Elsevier,c 2004
338		a print2 rdacarrier
520		a Estrogens induce both vitellogenin (Vtg) and egg shell (zona pellucida; ZP) protein synthesis in salmonids. However, while Vtg is strictly under estrogenic control, recent reports suggest that additional mechanisms are involved in ZP protein synthesis. During sexual maturation both estrogen and glucocorticoid levels increase in the circulation of female fish. As glucocorticoids have been shown to interfere with Vtg induction in fish we investigated whether cortisol (F) had similar effects on ZP regulation. In the present study we determined both the natural variation in Vtg and ZP during an annual reproductive cycle in female Arctic char (Salvelinus alpinus), and the effect of co-treatment of juvenile Arctic char with 17β-estradiol (E2) and F. During sexual maturation the expression of Vtg and ZP correlated to plasma levels of E2 and F. Determination of Vtg and ZP protein levels following co-treatment with E2 and F showed that F antagonized E2 induction of Vtg. However, F was observed to potentiate the expression of ZP protein in the same fish. These results indicate that in Arctic char Vtg and ZP proteins are not regulated by the same mechanisms and suggest that ZP protein expression does not necessarily imply exposure to estrogenic compounds alone, and may thus not be ideally suited as a biomarker of exposure to estrogenic compounds.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Cell- och molekylärbiologi0 (SwePub)301082 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Cell and Molecular Biology0 (SwePub)301082 hsv//eng
650	7	a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe
650	7	a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng
653		a Arctic char
653		a Salvelinus alpinus
653		a Reproductive cycle
653		a 17β-Estradiol
653		a Vitelline envelope proteins
653		a Zona pellucida proteins
653		a Vitellogenin
653		a Estrogen receptor
653		a Cortisol
653		a Biology
700	1	a Westerlund, L.4 aut
700	1	a Olsson, Per-Eriku Örebro universitet,Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Akademin för naturvetenskap och teknik4 aut0 (Swepub:oru)pkon
710	2	a Umeå universitetb Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet)4 org
773	0	t General and Comparative Endocrinologyd : Elsevierg 135:3, s. 276-285q 135:3<276-285x 0016-6480x 1095-6840
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-2989
856	4 8	u https://doi.org/10.1016/j.ygcen.2003.10.004
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-8842

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Av författaren/redakt...: Berg, A. H.; Westerlund, L.; Olsson, Per-Erik

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Medicinska och f ...; och Cell och molekyl ...

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Av lärosätet: Umeå universitet; Örebro universitet

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