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Items: 26

1.

Environmental, population and life-stage plasticity in the visual system of Atlantic cod.

Valen R, Karlsen R, Helvik JV.

J Exp Biol. 2018 Jan 11;221(Pt 1). pii: jeb165191. doi: 10.1242/jeb.165191.

PMID:
29146770
2.

Pushing the limits of photoreception in twilight conditions: The rod-like cone retina of the deep-sea pearlsides.

de Busserolles F, Cortesi F, Helvik JV, Davies WIL, Templin RM, Sullivan RKP, Michell CT, Mountford JK, Collin SP, Irigoien X, Kaartvedt S, Marshall J.

Sci Adv. 2017 Nov 8;3(11):eaao4709. doi: 10.1126/sciadv.aao4709. eCollection 2017 Nov.

3.

The two-step development of a duplex retina involves distinct events of cone and rod neurogenesis and differentiation.

Valen R, Eilertsen M, Edvardsen RB, Furmanek T, Rønnestad I, van der Meeren T, Karlsen Ø, Nilsen TO, Helvik JV.

Dev Biol. 2016 Aug 15;416(2):389-401. doi: 10.1016/j.ydbio.2016.06.041. Epub 2016 Jun 30.

4.

Molecular evidence that only two opsin subfamilies, the blue light- (SWS2) and green light-sensitive (RH2), drive color vision in Atlantic cod (Gadus morhua).

Valen R, Edvardsen RB, Søviknes AM, Drivenes Ø, Helvik JV.

PLoS One. 2014 Dec 31;9(12):e115436. doi: 10.1371/journal.pone.0115436. eCollection 2014.

5.

Exorhodopsin and melanopsin systems in the pineal complex and brain at early developmental stages of Atlantic halibut (Hippoglossus hippoglossus).

Eilertsen M, Drivenes O, Edvardsen RB, Bradley CA, Ebbesson LO, Helvik JV.

J Comp Neurol. 2014 Dec 15;522(18):4003-22. doi: 10.1002/cne.23652. Epub 2014 Aug 6.

PMID:
25044160
6.

Evidence for an ontogenetic change from pre-programmed to meal-responsive cck production in Atlantic herring, Clupea harengus L.

Kamisaka Y, Helvik JV, Tagawa M, Tanaka M, Rønnestad I.

Comp Biochem Physiol A Mol Integr Physiol. 2013 Jan;164(1):17-20. doi: 10.1016/j.cbpa.2012.10.006. Epub 2012 Oct 11.

PMID:
23063626
7.

Isolation and characterization of melanopsin photoreceptors of Atlantic salmon (Salmo salar).

Sandbakken M, Ebbesson L, Stefansson S, Helvik JV.

J Comp Neurol. 2012 Nov 1;520(16):3727-44. doi: 10.1002/cne.23125.

PMID:
22522777
8.

Corticotropin-releasing factor neurogenesis during midlife development in salmon: genetic, environmental and thyroid hormone regulation.

Ebbesson LO, Nilsen TO, Helvik JV, Tronci V, Stefansson SO.

J Neuroendocrinol. 2011 Aug;23(8):733-41. doi: 10.1111/j.1365-2826.2011.02164.x.

PMID:
21592238
9.

Identification and characterization of two zebrafish nectin-1 genes that are differentially expressed in the developing eye and brain.

Helvik JV, Rødahl E, Drivenes Ø, Haarr L.

Dev Dyn. 2009 Jan;238(1):43-55. doi: 10.1002/dvdy.21813.

10.

Treatment with small interfering RNA affects the microRNA pathway and causes unspecific defects in zebrafish embryos.

Zhao XF, Fjose A, Larsen N, Helvik JV, Drivenes Ø.

FEBS J. 2008 May;275(9):2177-84. doi: 10.1111/j.1742-4658.2008.06371.x. Epub 2008 Apr 1.

11.

Expression of the eight AMPA receptor subunit genes in the developing central nervous system and sensory organs of zebrafish.

Hoppmann V, Wu JJ, Søviknes AM, Helvik JV, Becker TS.

Dev Dyn. 2008 Mar;237(3):788-99. doi: 10.1002/dvdy.21447.

12.

Characterization of 'Candidatus Clavochlamydia salmonicola': an intracellular bacterium infecting salmonid fish.

Karlsen M, Nylund A, Watanabe K, Helvik JV, Nylund S, Plarre H.

Environ Microbiol. 2008 Jan;10(1):208-18. Epub 2007 Sep 24.

PMID:
17894816
13.

Cholecystokinin mRNA in Atlantic herring, Clupea harengus--molecular cloning, characterization, and distribution in the digestive tract during the early life stages.

Kamisaka Y, Drivenes O, Kurokawa T, Tagawa M, Rønnestad I, Tanaka M, Helvik JV.

Peptides. 2005 Mar;26(3):385-93.

PMID:
15652644
14.

Ontogeny of ultraviolet-sensitive cones in the retina of rainbow trout (Oncorhynchus mykiss).

Allison WT, Dann SG, Helvik JV, Bradley C, Moyer HD, Hawryshyn CW.

J Comp Neurol. 2003 Jun 30;461(3):294-306.

PMID:
12746869
15.

Identification and localization of eight distinct hormone-producing cell types in the pituitary of male Atlantic halibut (Hippoglossus hippoglossus L.).

Weltzien FA, Norberg B, Helvik JV, Andersen Ø, Swanson P, Andersson E.

Comp Biochem Physiol A Mol Integr Physiol. 2003 Feb;134(2):315-27.

PMID:
12547261
16.

Isolation and characterization of two teleost melanopsin genes and their differential expression within the inner retina and brain.

Drivenes Ø, Søviknes AM, Ebbesson LO, Fjose A, Seo HC, Helvik JV.

J Comp Neurol. 2003 Jan 27;456(1):84-93.

PMID:
12508316
17.

Molecular cloning and characterization of five opsin genes from the marine flatfish Atlantic halibut (Hippoglossus hippoglossus).

Helvik JV, Drivenes O, Naess TH, Fjose A, Seo HC.

Vis Neurosci. 2001 Sep-Oct;18(5):767-80.

PMID:
11925012
18.
19.

Emergence of axonal tracts in the developing brain of the turbot (Psetta maxima).

Doldán MJ, Prego B, Holmqvist B, Helvik JV, de Miguel E.

Brain Behav Evol. 2000 Dec;56(6):300-9.

PMID:
11326135
20.

Role of the pineal organ in the photoregulated hatching of the Atlantic halibut.

Forsell J, Holmqvist B, Helvik JV, Ekström P.

Int J Dev Biol. 1997 Aug;41(4):591-5.

21.

Development of hatchability in halibut (Hippoglossus hippoglossus) embryos.

Helvik JV, Walther BT.

Int J Dev Biol. 1993 Sep;37(3):487-90.

22.

Eggshell zona radiata-proteins from cod (Gadus morhua): extra-ovarian origin and induction by estradiol-17 beta.

Oppen-Berntsen DO, Hyllner SJ, Haux C, Helvik JV, Walther BT.

Int J Dev Biol. 1992 Jun;36(2):247-54.

23.

Oestradiol-17 beta induces the major vitelline envelope proteins in both sexes in teleosts.

Hyllner SJ, Oppen-Berntsen DO, Helvik JV, Walther BT, Haux C.

J Endocrinol. 1991 Nov;131(2):229-36.

PMID:
1744570
24.

Morphogenesis of the hatching gland of Atlantic halibut (Hippoglossus hippoglossus).

Helvik JV, Oppen-Berntsen DO, Flood PR, Walther BT.

Roux Arch Dev Biol. 1991 Sep;200(4):180-187. doi: 10.1007/BF00361335.

PMID:
28305964
25.

The hatching mechanism in Atlantic halibut (Hippoglossus hippoglossus).

Helvik JV, Oppen-Berntsen DO, Walther BT.

Int J Dev Biol. 1991 Mar;35(1):9-16.

26.

The major structural proteins of cod (Gadus morhua) eggshells and protein crosslinking during teleost egg hardening.

Oppen-Berntsen DO, Helvik JV, Walther BT.

Dev Biol. 1990 Feb;137(2):258-65.

PMID:
2303164

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