Recent publications:

Skrzynska A.K., Gozdowska M., Kulczykowska E., Martìnez-Rodrìguez G., Mancera J.M., Martos-Sitcha J.A. 2017. The effect of starvation and re-feeding on vasotocinergic and isotocinergic pathways in immature gilthead sea bream (Sparus aurata). J Comp Physiol B (2017). doi:10.1007/s00360-017-1064-y (PDF - 1.2 Mb)

Soares M.C., Cardoso S.C., Mazzei R., Andre G.I., Morais M., Gozdowska M., Kalamarz-Kubiak H., Kulczykowska E. 2017. Region specific changes in nonapeptide levels during client fish interactions with allopatric and sympatric cleaner fish. PLoS ONE 12(7): e0180290. (PDF - 1.7 Mb)

Kulczykowska E., Kleszczyńska A., Gozdowska M., Sokołowska E., 2017. The time enzyme in melatonin biosynthesis in fish: Day/night expressions of three aralkylamine N-acetyltransferase genes in three-spined stickleback. Comparative Biochemistry and Physiology, Part A 208, 46-53 (PDF - 1.1 Mb) (Corrigendum to paper - PDF)

Kijewska A., Kalamarz-Kubiak H., Arciszewski B., Guellard T., Petereit C., Wenne R. 2016. Adaptation to salinity in Atlantic cod from different regions of the Baltic Sea. Journal of Experimental Marine Biology and Ecology, 478, 62-67 (PDF - 527 kb)

Teles M. C., Gozdowska M., Kalamarz-Kubiak H., Kulczykowska E., Oliveira R.F., 2016. Agonistic interactions elicit rapid changes in brain nonapeptide levels in zebrafish. Hormones and Behavior, 84, 57-63. (PDF - 525 kb)

Kulczykowska E., Cardoso S.C., Gozdowska M., André G.I., Paula J.R., Ślebioda M., Oliveira R.F., Soares M.C., 2015. Brain levels of nonapeptides in four labrid fish species with different levels of mutualistic behaviour. General and Comparative Endocrinology, 222, 99-105 (PDF - 416 kb)

Kalamarz-Kubiak H., Kleszczyńska A., Kulczykowska E., 2015. Cortisol stimulates arginine vasotocin and isotocin release from the hypothalamo-pituitary complex of round goby (Neogobius melanostomus): Probable mechanisms of action. Journal of Experimental Zoology: Part A Ecological Genetics and Physiology, 323 (9), 616-626 (PDF - 970 kb)

Sokołowska E., Kleszczyńska A., Nietrzeba M., Kulczykowska E., 2015. Annual changes in brain concentration of arginine vasotocin and isotocin correspond with phases of reproductive cycle in round goby, Neogobius melanostomus, Chronobiology International: The Journal of Biological and Medical Rhythm Research 32: 917-924 (doi: 10.3109/07420528.2015.1052142).

Cardoso S.C., Grutter A.S., Paula J.R., André G.I., Messias J.P., Gozdowska M., Kulczykowska E., Soares M.C., 2015. Forebrain neuropeptide regulation of pair association and behavior in cooperating cleaner fish, Physiology & Behavior 145, 1-7 (PDF - 406 kb)

Guellard T., Sokołowska E., Arciszewski B., 2015. First report on intersex in invasive round goby (Neogobius melanostomus) from the Baltic Sea (Gulf of Gdańsk, Poland), Oceanologia 57(1), 102-106 (doi: 10.1016/j.oceano.2014.09.004) (PDF - 770 kb)

Reddon A.R., O'Connor C.M., Marsh-Rollo S.E., Balshine S., Gozdowska M., Kulczykowska E., 2015. Brain nonapeptide levels are related to social status and affiliative behaviour in a cooperatively breeding cichlid fish, R. Soc. open sci. 2: 140072. (PDF - 520 kb)

Cádiz L., Román-Padilla J., Gozdowska M., Kulczykowska E., Martìnez-Rodrìguez G., Mancera J.M., Martos-Sitcha J.A., 2015. Cortisol modulates vasotocinergic and isotocinergic pathways in the gilthead sea bream, The Journal of Experimental Biology, 218, 1-10, doi:10.1242/jeb.113944 (PDF - 620 kb)

Kulczykowska E., Kalamarz-Kubiak H., Nietrzeba M., Gozdowska M., 2015. Brain nonapeptide and gonadal steroid responses to deprivation of heterosexual contact in the black molly. Biology Open, 4, 69-78, doi:10.1242/bio.20149597. (PDF - 877 kb)

Kalamarz-Kubiak H., Meiri-Ashkenazi I., Kleszczyńska A. Rosenfeld H., 2014. Urotensin II inhibits arginine vasotocin and stimulates isotocin release from nerve endings in the pituitary of gilthead sea bream (Sparus aurata). J. Exp. Zool. A Ecol. Genet. Physiol. 321(8), 467-71 (PDF - 306 kb)

Kalamarz-Kubiak H., Meiri-Ashkenazi I., Kleszczyńska A. Rosenfeld H., 2014. In vitro effect of cortisol and urotensin I on arginine vasotocin and isotocin secretion from pituitary cells of gilthead sea bream Sparus aurata. J. Fish Biol. 84, 448-458 (PDF - 613 kb)

Kulczykowska E., Kleszczyńska A., 2014. Brain arginine vasotocin and isotocin in breeding female three-spined sticklebacks (Gasterosteus aculeatus): The presence of male and egg deposition. Gen. Comp. Endocrinol. 204, 8-12 (PDF - 317 kb)

Martos-Sitcha J.A., Wunderink Y.S., Gozdowska M., Kulczykowska E., Mancera J.M., Martìnez-Rodrìguez G., 2013. Vasotocinergic and isotocinergic systems in the gilthead sea bream (Sparus aurata): An osmoregulatory story. Comp. Biochem. Physiol. A, 166, 571-581 (PDF - 2.5 Mb)

Sokołowska E., Kleszczyńska A., Kalamarz-Kubiak H., Arciszewski B., Kulczykowska E. 2013. Changes in brain arginine vosotocin, isotocin, plasma 11-ketotestosterone and cortisol in round goby, Neogobius melanostomus, males subjected to overcrowding stress during the breeding season. Comp. Biochem. Physiol. A, 165, 237-242 (doi: 10.1016/j.cbpa.2013.03.018) (PDF - 652 kb)

Gozdowska M., Ślebioda M., Kulczykowska E. 2013. Neuropeptides isotocin and arginine vasotocin in urophysis of three fish species. Fish Physiol. Biochem. 39, 863-869 (doi. 10.1007/s10695-012-9746-6). (PDF - 290 kb)

Kleszczyńska A., Kulczykowska E. 2013. Stocking density influences brain arginine vasotocin (AVT) and isotocin (IT) levels in males and females of three-spined stickleback (Gasterosteus aculeatus). Gen. Comp. Endocrinol. 183, 14-16. (PDF - 368 kb)

Martins C.I.M., Galhardo L., Noble C., Damsgard B., Spedicato M.T., Zupa W., Beauchaud M., Kulczykowska E., Massabuau J.-C., Carter T., Rey Planellas S., Kristiansen T. 2012. Behavioural indicators of welfare in farmed fish. Fish Physiol. Biochem. 38, 17-41 (doi: 10.1007/s10695-011-9518-8). (PDF - 377 kb)

Almeida O., Gozdowska M., Kulczykowska E., Oliveira R.F. 2012. Brain levels of arginine-vasotocin and isotocin in dominant and subordinate males of a cichlid fish. Hormones and Behavior 61, 212-217 (doi: 10.1016/j.yhbeh.2011.12.008). (PDF - 525 kb)

Kleszczyńska A., Sokołowska E., Kulczykowska, E. 2012. Variation in brain arginine vasotocin (AVT) and isotocin (IT) levels with reproductive stage and social status in males of three-spined stickleback (Gasterosteus aculeatus). Gen. Comp. Endocrinol., 175, 290-296 (doi: 10.1016/j.ygcen.2011.11.022). (PDF - 477 kb)

Kijewska A., Więcaszek B., Kalamarz-Kubiak H., Szulc J., Sobecka E. 2012. Skin structure studies and molecular identification of the Atlantic cod Gadus morhua L. of unique golden pigmentation from the Svalbard Bank. Journal of Applied Ichtyology 28, 60-65, (doi: 10.1111/j.1439-0426.2011.01919.x).

Kalamarz-Kubiak H., Gozdowska M., Nietrzeba M., Kulczykowska E. 2011. A novel approach to AVT and IT studies in fish brain and pituitary: In vitro perfusion technique.J. Neurosci. Methods 199, 56-61 (doi:10.1016/j.jneumeth.2011.04.035) (PDF - 626 kb)

Sokołowska E., Fey D.P. 2011. Age and growth of the round goby Neogobius melanostomus in the Gulf of Gdańsk several years after invasion. Is the Baltic Sea a new Promised Land? J. Fish Biol. 78, 1993-2009 (doi: 10.1111/j.1095-8649.2011.02986).

Kulczykowska E., Sánchez-Vázquez F.J. 2010. Neurohormonal regulation of feed intake and response to nutrients in fish: aspects of feeding rhythm and stress. Aquaculture Res. 41, 654-667. (PDF - 307 kb)

Sokołowski A., Bawazir A. S., Sokołowska E., Wołowicz M. 2010. Seasonal variation in the reproductive activity, physiological condition and biochemical components of the brown mussel Perna perna from the coastal waters of Yemen (Gulf of Aden). Aquat. Living Resour. 23, 177-186 (doi:10.1051/alr/2010016).

Sokołowska E., Kulczykowska E. 2009. Environmental influence on maturation and dominance relationships in the three-spined stickleback (Gasterosteus aculeatus L.): temperature competes with photoperiod for primacy. Oceanol. Hydrobiol. Stud. 38 (4), 31-48 (doi: 10.2478/v10009-009-0042-4). (PDF - 833 kb)

Kalamarz H., Nietrzeba M., Fuentes J., Martìnez-Rodrìguez G., Mancera J.M., Kulczykowska E. 2009. Melatonin concentrations during larval and post-larval development of gilthead sea bream Sparus auratus L.: more than a time-keeping molecule? J. Fish Biol. 75, 142-155. (PDF - 588 kb)

López-Olmeda J.F., Oliveira C., Kalamarz H., Kulczykowska E., Delgado M.J., Sánchez-Vázquez F.J. 2009. Effects of water salinity on melatonin levels in plasma and peripheral tissues and on melatonin binding sites in European sea bass (Dicentrarchus labrax), Comp. Biochem. Physiol. A, 152, 486-490. (PDF - 512 kb)

Kulczykowska E. 2008. Arginine vasotocin and isotocin as multifunctional hormones, neurotransmitters and neuromodulators in fish. In: AVANCES en Endocrinologìa Comparada (eds. J.A. Munoz-Cueto, J. M. Mancera and G. Martìnez-Rodrìguez), Vol. IV, Servicio de Publicaciones, Universidad de Cádiz, Spain, ISBN 978-84-9828-152-1, pp.41-47.

J.F. López-Olmeda, C. Oliveira, H. Kalamarz, E. Kulczykowska, M.J.Delgado, F.J. Sánchez-Vázquez: Effects of water salinity on melatonin levels in plasma and peripheral tissues and on melatonin receptors in European sea bass (Dicentrarchus labrax). In: AVANCES en Endocrinologìa Comparada (eds. J.A. Munoz-Cueto, J. M. Mancera and G. Martìnez-Rodrìguez), Vol. IV, Servicio de Publicaciones, Universidad de Cádiz, Spain, ISBN 978-84-9828-152-1, pp.139-143, 2008.

Mancera J.M., Vargas-Chacoff L., Garcìa-López A., Kleszczyńska A., Kalamarz H., Martìnez-Rodrìguez G., Kulczykowska E.: High density and food-deprivation affect arginine vasotocin, isotocin and melatonin in gilthead sea bream (Sparus auratus). Comp.Biochem.Physiol. A 149, 92-97, 2008 (PDF - 382 kb)

Abbink W., Kulczykowska E., Kalamarz H., Guerreiro P., Flik G.: Melatonin synthesis under calcium constraint in gilthead sea bream (Sparus auratus L.). Gen.Comp.Endocrinol. 155, 94-100, 2008 (PDF - 365 kb)

Kulczykowska, E., 2007. Arginine Vasotocin and Isotocin: Towards Their Role in Fish Osmoregulation. In : Fish Osmoregulation, B. Baldisserotto, J. M. Mancera Romero and B.G. Kapoor (Eds.). Science Publisher, Enfield (NH), pp. 151-176. (PDF - 250 kb)

Kulczykowska E., Kasprzak M., Kalamarz H., Kuriata M., Nietrzeba M., Jerzak L. and Kamiński P.: Melatonin and thyroxine response to pollution in white stork nestlings (Ciconia ciconia): Aspects of rhythmicity and age. Comp.Biochem.Physiol. C 146, 392-397, 2007 (PDF - 349 kb)

Kleszczyńska A., Dumont E., Cornelis R., Gozdowska M., Kulczykowska E., Sandra P.: Determination of the neuropeptides arginine vasotocin and isotocin in brains of three-spined sticklebacks (Gasterosteus aculeatus) by off-line solid phase extraction-liquid chromatography-electrospray tandem mass spectrometry. J. Chromatogr. A 1150 (1-2), 290-294 2007 (PDF - 357 kb)

Sangiao-Alvarellos S., Polakof S., Arjona F.J., Kleszczyńska A., Martin del Rio M.P., Miguez J.M., Soengas J.L., Mancera J.M.: Osmoregulatory and metabolic changes in the gilthead sea bream Sparus auratus after arginine vasotocin (AVT) treatment. Gen. Comp. Endocrinol. 148, 348-358 2006. (PDF - 417 kb)

Kleszczyńska A., Vargas-Chacoff L., Gozdowska M., Kalamarz H., Martìnez-Rodrìguez G., Mancera J.M., Kulczykowska E.: Arginine vasotocin, isotocin and melatonin responses following acclimation of gilthead sea bream (Sparus aurata) to different environmental salinities. Comp.Biochem.Physiol. A 145(2), 268-273, 2006. (PDF - 257 kb)

Sokołowska E., Kulczykowska E.: Annual reproductive cycle in two free living populations of three-spined stickleback (Gasterosteus aculeatus, L.): patterns of ovarian and testicular development. Oceanologia 48(1), 103-124, 2006 (PDF - 1.2 Mb)

Kulczykowska E., Kalamarz H., Warne J.M., Balment R.J.: Role of melatonin in fish osmoregulation: Towards a new action of the hormone. J. Exp. Zool. A, 305 (2), 145, 2006

Gozdowska M., Kleszczyńska A., Sokołowska E., Kulczykowska E.: Arginine vasotocin (AVT) and isotocin (IT) in fish brain: Diurnal and seasonal variations. Comp. Biochem. Physiol. B 143(3), 330-334, 2006 (PDF - 0.12 Mb)

Kulczykowska E., Kalamarz H., Warne J.M., Balment R.J.: Day - night specific binding of 2-[125I]Iodomelatonin and melatonin content in gill, small intestine and kidney of three fish species. J. Comp. Physiol. B 176 (4), 277 - 285, 2006 (PDF - 0.4 Mb)

Sokołowska E., Kalamarz H., Kulczykowska E.: Seasonal changes in brain melatonin concentration in the three-spined stickleback (Gasterosteus aculeatus): towards an endocrine calendar. Comp.Biochem.Physiol. A 139, 365-369, 2004 (PDF - 0.17 Mb)

Kleszczyńska A., Kulczykowska E.: Determinacja płci i zachowań seksualnych u ryb: rola czynników hormonalnych i środowiskowych. Przegląd Zoologiczny 48, 29-44, 2004

Gozdowska M., Kulczykowska E.: Determination of arginine-vasotocin and isotocin in fish plasma with solid-phase extraction and fluorescence derivatization followed by high-performance liquid chromatography. J. Chromatogr. B 807, 229-233, 2004 (PDF - 0.12 Mb)

Kulczykowska E., Sokołowska E., Takvam B., Stefansson S., Ebbesson L.: Influence of exogenous thyroxine on plasma melatonin in juvenile Atlantic salmon (Salmo salar). Comp.Biochem.Physiol. B 137(1), 43-47, 2004 (PDF - 0.1 Mb)

Gozdowska M., Sokołowska E., Kulczykowska E.: Plasma Ca2+ concentration limits melatonin night production in two fish species. J. Fish Biol. 62(6), 1405-1413, 2003 (PDF - 124 kb)

Sokołowska E., Skóra K.E.: Reproductive cycle and the related spatial and temporal distribution of the ninespine stickleback (Pungitius pungitius L.) in Puck Bay. Oceanologia, 44(4), 475-490, 2002

Gozdowska M., Kulczykowska E.: Oznaczanie hormonów w osoczu krwi techniką HPLC. Postępy Biochemii 48(4), 317-324, 2002

Kulczykowska E.: A review of the multifunctional hormone melatonin and a new hypothesis involving osmoregulation. Rev. Fish Biol. Fish. 11: 321-330, 2002 (PDF - 150 kb)

Kulczykowska E.: Responses of circulating arginine vasotocin, isotocin, and melatonin to osmotic and disturbance stress in rainbow trout (Oncorhynchus mykiss). Fish Physiol. Biochem. 24, 201-206, 2001 (PDF - 82 kb)

Kulczykowska E., Warne J.M., Balment R.J.: Day-night variations in plasma melatonin and arginine vasotocin concentrations in chronically cannulated flounder (Platichthys flesus). Comp. Biochem. Physiol. A 130, 827-834, 2001 (PDF - 135 kb)

Sokołowska E., Skóra K.: Fecundity of ninespine stickleback (Pungitius pungitius L., 1758) in the Puck bay. Acta Ichthyol. Piscat. 31, 45-60, 2001

Sokołowska E., Kulczykowska E.: Biologia rozrodu ciernika Gasterosteus aculeatus (L.). Przegląd Zoologiczny 45, 197-214, 2001

Kulczykowska E.: Hormony nerwowej części przysadki mózgowej u kręgowców - rola w osmoregulacji - aspekt ewolucyjny. Przegląd Zoologiczny 44, 117-130, 2000

Kulczykowska E.: Rola hormonów przysadkowych wazotocyny argininowej i izotocyny oraz szyszynkowej melatoniny w mechanizmach adaptacyjnych u ryb kostnoszkieletowych: interakcje funkcjonalne? Crangon 2, Centrum Biologii Morza PAN, Gdynia 1999 (ISBN 83-906449-1-6)

Kulczykowska E.: Diel changes in plasma arginine vasotocin, isotocin, and melatonin in rainbow trout (Oncorhynchus mykiss). Fish Physiol. Biochem. 21, 141-146, 1999 (PDF - 68 kb)

Kulczykowska E.: Diurnal changes in arginine vasotocin and isotocin plasma levels in rainbow trout adapted to freshwater and brackish Baltic water. Ann. New York Acad. Sci. 839, 437-439, 1998 (PDF - 112 kb)

Kulczykowska E.: Effects of arginine vasotocin, isotocin and melatonin on blood pressure in the conscious Atlantic cod (Gadus morhua): hormonal interactions? Exp. Physiol. 83, 809-820, 1998 (PDF - 1.3 Mb)

Kulczykowska E., Iuvone P.M.: Highly sensitive and specific assay of plasma melatonin using high-performance liquid chromatography with fluorescence detection preceded by solid-phase extraction. J. Chromatogr. Sci. 36, 175-178, 1998 (PDF - 0.8 Mb)

Kulczykowska E.: Response of circulating arginine vasotocin and isotocin to rapid osmotic challenge in rainbow trout. Comp. Biochem. Physiol. A 118, 773-778, 1997 (PDF - 0.6 Mb)

Kulczykowska E., Stolarski J.: Diurnal changes in plasma arginine vasotocin and isotocin in rainbow trout adapted to fresh water and brackish Baltic water. Gen. Comp. Endocrinol. 104, 197-202, 1996 (PDF - 90 kb)

Kulczykowska E.: Solid-phase extraction of arginine vasotocin and isotocin in fish samples and subsequent gradient reversed-phase high-performance liquid chromatographic separation. J. Chromatogr. B 673, 289-293, 1995 (PDF - 340 kb)

Kulczykowska E.: Arginine vasotocin-melatonin interactions in fish: a hypothesis. Rev. Fish Biol. Fish. 5, 96-102, 1995 (PDF - 0.63 Mb)

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