Publications
2011
Sower, S.A., E. Balz, A. Aquilina-Beck and S.I. Kavanaugh. 2011. Seasonal changes of brain GnRH-I, -II, and –III during the final reproductive period in adult male and female sea lamprey. Gen. Comp. Endocrinol. 170:276-282. PubMed
Kim, D.K., E.B. Cho, M.J. Moon, S. Park, J.I. Hwang, O. Kah, S.A. Sower, H. Vaudry and J.Y. Seong. 2011. Revisiting the evolution of gonadotropin-releasing hormones and their receptors in vertebrates: Secrets hidden in genomes. Gen. Comp. Endocrinol. 170:68-78. PubMed
2010
Uchida, K., S. Moriyama, H. Chiba, T. Shimotani, K. Honda, M. Miki, A. Takahashi, S.A. Sower and M. Nozaki. 2010. Evolutionary origin of a functional gonadotropin in the pituitary of the most primitive vertebrate, hagfish. Proc. Natl Acad Sci U. S. A. 07(36): 15832-15837. PubMed
Clemens, B.J., T. Binder, M. Docker, M.L. Moser and S.A. Sower. 2010. Similarities, Differences, and Unknowns in Biology and Management of Three Parasitic Lampreys of North America. Fisheries. 35:580-596. Fisheries
Mesa, M.G., J.M. Bayer, M.B. Bryan, and S.A. Sower. 2010. Annual sex steroid and other physiological profiles of Pacific lampreys (Entosphenus tridentatus). Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology. 155:56-63. PubMed
Sower, S.A. and H. Kawauchi. 2010. Reproduction in Agnathan Fishes: Lampreys and Hagfishes. In Hormones and Reproduction of Vertebrates. Editors: D.O. Norris and K. H. Lopez. Academic Press. Vol. 1, Chapt 10.
Holland, L.Z. and S.A. Sower. 2010. “Insights of Early Chordate Genomics: Endocrinology and Development in Amphioxus, Tunicates and Lamprey’s”: Introduction to the symposium. Integr. and Comp. Biol. 50:17-21. Oxford Publications
Freamat, M. and S.A. Sower. 2010. Functional divergence of glycoprotein hormone receptors. Integrative and Comparative Biology. 50:110-123. Oxford Publications
Kosugi, T. and S.A Sower. 2010. A role of Histidine(151) in the lamprey gonadotropin-releasing hormone receptor-1 (lGnRHR-1): Functional insight of diverse amino acid residues in the position of Tyr of the DRY motif in GnRHR from an ancestral type II receptor. Gen Comp Endocrinol. 166:498-503. PubMed
Patiño, R., B. Barton, A. Maule.,M. Mesa, J. Redding, K. Rodnick and S.A. Sower. 2010. Profiles in Comparative Endocrinology: Carl B. Schreck Howard Bern Lecturer, Annual Meeting of Society of Integrative and Comparative Endocrinology, Seattle, January 5, 2010. Gen Comp Endocrinol. Science Direct
2009
Sower, S.A., M. Freamat, and S.I. Kavanaugh. 2009. Insight from lamprey genomics: brain and pituitary reproductive hormones of lampreys. Pages 57-70 in L. R. Brown, S.D. Chase, M. G. Mesa, R.J. Beamish, and P.B. Moyle, editors. Biology, management, and conservation of lampreys in North America. American Fisheries Society, Symposium 72, Bethesda, Maryland.
Sower S.A., M. Freamat, S.I. Kavanaugh. 2009. The origins of the vertebrate hypothalamic–pituitary–gonadal (HPG) and hypothalamic–pituitary–thyroid (HPT) endocrinesystems: New insights from lampreys. Gen. Comp. Endocrinol. 161:16120–16129. PubMed.
Denver, R.J., P.M. Hopkins, S.D. McCormick, C.R. Propper, L. Riddiford, S.A. Sower and J. Wingfield. 2009. Comparative Endocrinology in the 21st century. Integrat. Comp. Biol. 49: 339-348.
Kawauchi, H., S. Sower and H. Moriyama. 2009. The neuroendocrine regulation of prolactin and somatolactin in secretion in fish. In: Bernier, N., Van Der Kraak, G., Farrell, A., Brauner, C. (Eds.), Fish Neuroendocrinology, vol. 28. Academic Press, Amsterdam, pp. 197-234.
2008
Freamat M, Sower S.A. 2008. Glycoprotein hormone receptors in the sea lamprey, Petromyzon marinus. Zool Science. 25:1037-1044. PubMed
Freamat M, Sower S.A. 2008. A sea lamprey glycoprotein hormone receptor similar with gnathostome thyrotropin hormone receptor. J Mol Endocrinol. 41(4):219-228. PubMed.
Kavanaugh S.I., Nozaki M., Sower S.A. 2008. Origins of gonadotropin-releasing hormone (GnRH) in vertebrates: identification of a novel GnRH in a basal vertebrate, the sea lamprey. Endocrinology. 149(8):3860-3869. PubMed.
LaFiandra E.M., Babbitt K.J., Sower S.A. Effects of atrazine on anuran development are altered by the presence of a nonlethal predator. 2008. J Toxicol Environ Health A. 71(8):505-511. PubMed.
Nozaki, M., K. Ominato, T., Shimotani, H. Kawauchi, J.H. Youson and S.A. Sower. 2008. Identity and distribution of immunoreactive adenohypophysial cells in the pituitary during the life cycle of sea lampreys, Petromyzon marinus. Gen. Comp. Endocrinol. 155(2):403-412. PubMed.
Ngernsoungnern P., A. Ngernsoungnern, S. Kavanaugh, P. Sobhon, S. A. Sower and P. Sretarugsa. 2008. The presence and distribution of gonadotropin-releasing hormone-liked factor in the central nervous system of the black tiger shrimp, Penaeus monodon. Gen. Comp. Endocrinol. 155(3):613-622. PubMed.
La Fiandra, E.M., K.J. Babbitt, and S.A. Sower. 2008. Effects of atrazine on anuran development are altered by the presence of a nonlethal predator. J. Toxicol. Environ. Health A. 71:505-511. PubMed.
Kavanaugh, S.I., M. Nozaki and S.A. Sower. 2008. Origins of GnRH in vertebrates: identification of a novel GnRH in a Basal Vertebrate, the Sea Lamprey. Endocrinology. 2008 Aug;149(8):3860-3869. PubMed.
A. Ngernsoungnern, P. Ngernsoungnern, S.I. Kavanaugh, S.A. Sower, P. Sobhon, and P. Sretarugsa. 2008. The identification and distribution of gonadotropin-releasing hormone-like peptides in the central nervous system and ovary of the giant freshwater prawn, Macrobrachium rosenbergii. Invert Neurosci. Mar;8(1):49-57. PubMed.
2007
Moriyama, S., M. Kasahara, N. Amiya, A. Takahashi, M. Amano, S.A. Sower, K. Yamamori, and H. Kawauchi. 2007. RFamide peptides inhibit the expression of melanotropin and growth hormone genes in the pituitary of an agnathan, the sea lamprey, Petromyzon marinus. Endocrinology, 148(8):3740-3749. PubMed
2006
Takahashi, A., O. Nakata, M. Kasahara, S.A. Sower, and H. Kawauchi. 2006. Structures for the proopiomelanocortin family genes proopiocortin and propiomelanotropin in the sea lamprey Petromyzon marinus. Gen. Comp. Endocrinol. 144:174-181. PubMed
Kawauchi, H. and S.A. Sower. 2006. Mini review: The Dawn and Evolution of Hormones in the Adenohypophysis. Gen. Comp. Endocrinol. 148:3-14. (Epub 2005 Dec 13). PubMed
Powell, M.L., S.I. Kavanaugh and S.A. Sower. 2006. Identification of a functional corpus luteum in the Atlantic hagfish, Myxine glutinosa. GCE 148:95-101. (Epub 2006 Feb 17). PubMed
Sower, S.A. S. Moriyama, M. Kasahara, A. Takahashi, M. Nozaki, J.M. Dahlstrom and H. Kawauchi. 2006. Identification of sea lamprey GTHbeta-like cDNA and its evolutionary implications. Gen. Comp. Endocrinol. 148:22-32. (Epub 2006 Jan 19). PubMed
Takahashi, A., A. Yasuda, S.A. Sower and H. Kawauchi. 2006. Posttranslational processing of proopiomelanocortin family molecules in sea lamprey based on mass spectrometric and chemical analyses. Gen. Comp. Endocrinol. 148:79-84. (Epub 2005 Nov 14). PubMed
Takahashi A, O. Nakata, S. Moriyama, M. Nozaki, JM Joss, SA Sower, and K. Kawauchi. 2006. Occurrence of two functionally distinct proopiomelanocortin genes in all modern lampreys. Gen Comp Endocrinol. 148:72-78. (Epub 2005 Oct 20). PubMed
Moriyama S, M.Oda, A. Takahashi, S.A Sower and H. Kawauchi. 2006. Genomic structure of the sea lamprey growth hormone-encoding gene. Gen. Comp. Endocrinol. 148:33-40. (Epub 2005 Nov 8). PubMed
Youson JH, Heinig JA, Khanam SF, Sower SA, Kawauchi H, Keeley FW. 2006. Patterns of proopiomelanocortin and proopiocortin gene expression and of immunohistochemistry for gonadotropin-releasing hormones (lGnRH-I and III) during the life cycle of a nonparasitic lamprey: Relationship to this adult life history type. Gen Comp Endocrinol. 148:54-71. (Epub 2005 Dec 16). PubMed
Silver, M.R. and S.A. Sower. 2006. Functional characterization and kinetic studies of an ancestral lamprey GnRH-III selective type II GnRH receptor from the sea lamprey, Petromyzon marinus. J. Molec. Endocrinol. 36:601-610. PubMed
Freamat, M., H. Kawauchi, M. Nozaki, and S.A. Sower. 2006. Identification and cloning of a glycoprotein hormone receptor from sea lamprey, Petromyzon marinus. J. Molec Endocrinol. 37: 135-146. PubMed
Osugi, T., K. Ukena, S. A. Sower, H. Kawauchi and K. Tsutsui. 2006. Evolutionary origin and divergence of PQRFamide peptides and LPXRFamide peptides in the RFamide peptide family: Insights from novel lamprey RFamide peptides. FEBS Journal. 273:1731–1743. PubMed
2005
Root, A.R., N.V. Nucci, J. D. Sanford, B.S. Rubin, V.L. Trudeau, and S. A. Sower. 2005. In situ characterization of gonadotropin-releasing hormone -I, -III, and glutamic acid decarboxylase expression in the brain of the sea lamprey, Petromyzon marinus. Brain, Behavior and Evol. 65:60-70. PubMed
Kavanaugh, S.I., A.R. Root, and S.A. Sower. 2005. Isolation of gonadotropin-releasing hormone (GnRH) and its distribution by in situ hybridization in the tunicate Ciona intestinalis. Gen. Comp. Endocrinol. 141:76-83. PubMed
Kavanaugh, S.I., M.L. Powell and S.A. Sower. 2005. Seasonal changes of gonadotropinreleasing hormone (GnRH) in the Atlantic hagfish Myxine glutinosa. Gen Comp. Endocrinol. 140:136-143. PubMed
Powell, M.L., S.I. Kavanaugh and S.A. Sower. 2005. Current knowledge of hagfish reproduction: implications for fisheries management. Integrat. Comp. Biol. 45:158-165. OxfordJournals
Powell, M.L. and S.A. Sower. Preliminary Identification of a Functional Corpus Luteum inthe Atlantic Hagfish, Myxine glutinosa. Gen Comp Endocrinol. 2006 Aug;148:95-10. PubMed
Silver, M.R., N.V. Nucci, A.R. Root, K.L. Reed and S.A. Sower. 2005. Cloning and characterization of a functional type II GnRH receptor with a lengthy carboxy-terminal tail from an ancestral vertebrate, the sea lamprey. Endocrinology. 146:3351-3361. PubMed
Nozaki, M., Y. Oshima, M. Miki, T. Shimotani, H. Kawauchi and S.A. Sower. 2005. Distribution of immunoreactive adenohypophyseal cell types in the pituitaries of the Atlantic and the Pacific hagfish, Myxine glutinosa and Eptatretus burgeri. Gen. Comp. Endocrinol. 143:142-150. PubMed
Takahashi, A., O. Nakata, M. Kasahara, S.A. Sower, and H. Kawauchi. 2005. Structures for the proopiomelanocortin family genes proopiocortin and proopiomelanotropin in the sea lamprey Petromyzon marinus. Gen. Comp. Endocrinol. In Press. Gen Comp Endocrinol. 2005 Nov;144(2):174-181. Epub 2005 Jun 24.
Takahashi, A., O. Nakata, T. Kosugi, K. Kako, T. Sakai, M. Ito, N. Takamatsu, T. Shiba, S.A. Sower and H. Kawauchi. 2005. Promoter activity of sea lamprey proopiocortin and proopiomelanotropin genes in AtT-20/D16v cell. Gen. Comp. Endocrinol. 2005 Nov;144(2):182-187. Epub 2005 Jul 21.PubMed
2004
Sower, Stacia A., Nathaniel V. Nucci, and Matthew R. Silver. 2004. Family of Gonadotropin- Releasing Hormone, In: Encyclopedia of Endocrine Diseases. Editor-in-Chief, Luciano Martini, University of Milan, Italy. Elsevier Academic Press. Vol. 1-4. 3043 pgs.
Powell, M.L, Kavanaugh S.I. and S.A. Sower. 2004. Seasonal concentrations of reproductive steroids in the gonads of the Atlantic hagfish, Myxine glutinosa. J. Exp Zool. 301: 352-360 PubMed
Young, B.A, M.B. Bryan, S.A. Sower; A.P. Scott; and W. Li. 2004. 15a-Hydroxstestosterone Induction by GnRH I and GnRH III in Atlantic and Great Lakes Sea Lamprey (Petromyzon marinus L .). Gen Comp. Endocrinol. 36: 276-281 PubMed
Young, B.A., Bryan, M.B., Sower, S.A., Li, W. 2004. The effect of chemosterilization on sex steroid production in male sea lampreys. Transactions of the American Fisheries Society 133(5):1270-1276.
Root, A.R., J. D. Sanford, S.I. Kavanaugh, and S. A. Sower. 2004. In vitro and in vivo effects of GABA, muscimol, and bicuculline on lamprey GnRH concentration in the brain of the sea lamprey, Petromyzon marinus. Comp Biochem Physiol. 138:493-501. PubMed
Silver, M.R., H. Kawauchi, M. Nozaki and S.A. Sower. 2004. Cloning and analysis of the lamprey GnRH-III cDNA from eight species of lamprey representing the three families of Petromyzoniformes. Gen. Comp. Endocrinol. 139:85-94 PubMed
Bentley, G.E, I. T. Moore, S. A. Sower and J.C. Wingfield. 2004. Evidence for a novel gonadotropin-releasing hormone in hypothalamic and forebrain areas in songbirds. Brain, Behavior and Evol. 63:34-46. PubMed
2003
Sower, S.A. 2003. The Endocrinology of Reproduction in Lampreys and Applications for Male Lamprey Sterilization. J. Great Lakes Res. 29:50-65.
Docker, M.F., S.A. Sower, J.H. Youson, and F.W.H. Beamish. 2003. Future sea lamprey control through regulation of metamorphosis and reproduction: A report from the SLIS II New Science and Control workgroup. Journal of Great Lakes Research 29 (Supplement 1): 801- 807.
Takahashi, A., Y. Amemiya, M. Nozaki, S.A. Sower and H. Kawauchi. 2003. Molecular evolution of proopiomelanocortin in fish. IN: Aquatic Genomics-Steps Toward a Great Future. Springer-Verlag, Tokyo. 217-224 pg.
Sower, S.A. and M. R. Silver. "Petromysoniformes" IN: Grzimek’s Animal Life Encyclopedia, 2nd Edition. Volumes 4-5, Fishes I-II, edited by Michael Hutchins, Dennis A. Thoney, Paul V. Loiselle, and Neil Schlager. Farmington Hills, MI: Gale Group, 2003. Vol 1., pgs 83-90
Sower, S.A., M.L. Powell and S.I. Kavanaugh. "Myziniformes" IN: Grzimek’s Animal Life Encyclopedia, 2nd Edition. Volumes 4-5, Fishes I-II, edited by Michael Hutchins, Dennis A. Thoney, Paul V. Loiselle, and Neil Schlager. Farmington Hills, MI: Gale Group, 2003. Vol. 1 77-82.
Gorbman, A and S.A. Sower, 2003. Mini-Review: Evolution of the Role of GnRH in Animal (Metazoan) Biology. Gen Comp. Endocrinol. 134:207-213. PubMed
Nozaki, M., Y. Oshima, T. Shimotani and S.A. Sower. 2003. Immunohistochemical detection of gonadotropin-like material in the hagfish pituitary, correlated with their gonadal maturation. Fish Physiol Biochem. 28:85-87.
2002
Kawauchi H, Suzuki K, Yamazaki T, Moriyama S, Nozaki M, Yamaguchi K, Takahashi A, Youson J, Sower SA. 2002. Identification of growth hormone in the sea lamprey, an extant representative of a group of the most ancient vertebrates. Endocrinology 2002 Dec;143(12):4916-4921. PubMed
Reed KL, MacIntyre JK, Tobet SA, Trudeau VL, MacEachern L, Rubin BS, Sower SA. 2002. The spatial relationship of gamma-aminobutyric acid (GABA) neurons and gonadotropin-releasing hormone (GnRH) neurons in larval and adult sea lamprey, Petromyzon marinus. Brain Behav Evol 2002;60(1):1-12. PubMed
Moriyama, M., T. Ito, A. Takahashi, M. Amano, S.A. Sower, T. Hirano, K.Yamamori, and H.Kawauchi. 2002. A homologue of mammalian prolactin-releasing peptide (Fish arginyl-phenylalanyl-amide peptide) is a major neuroendocrine hormone of prolactin release in teleost fish. Endocrinology 2002 Jun;143(6):2071-2079. PubMed
Grove-Strawser, D., S.A. Sower, P. M. Ronsheim, J.B. Connolly, C. G. Bourn, and B.S. Rubin. 2002. Guinea pig GnRH: Localization and physiological activity reveal that it, and not mammalian GnRH, is the major neuroendocrine form in guinea pigs. Endocrinology 2002 May;143(5):1602-1612. PubMed
Hiney, J.K., S.A. Sower, W.H. Yu, S.M. McCann and W.L. Dees. 2002.Gonadotropin-releasing hormone neurons in the preoptic-hypothalamic region of the rat contain lamprey gonadotropin-releasing hormone III, mammalian luteinizing hormone-releasing hormone, or both peptides. Proc. Natl. Acad. Sci. U.S.A. 99(4):2386-2391. PubMed
Flynn, K. M., S.A. Miller, S.A. Sower, and M.P. Schreibman. 2002. Sexually dimorphic effects of NMDA receptor antagonism on brain-pituitary-gonad axis development in the platyfish. Comp. Biochem. Physiol. C. 131(1):9-18. PubMed
2001
Bird, D.J., I.C. Potter, S.A. Sower and B.I. Baker. 2001. The distribution of melanin- concentrating hormone (MCH) in the lamprey brain. Gen. Comp. Endocrinol. 121: 232-241. PubMed
Sower, S.A. and H. Kawauchi. 2001. Update: Brain and Pituitary Hormones of Lampreys. Comp Biochem Physiol B Biochem Mol Biol 129:291-302. PubMed
Youson, J.H. and S.A. Sower. 2001. Theory on the evolutionary history of lamprey metamorphosis: role of reproductive and thyroid axes. Comp Biochem Physiol B Biochem Mol Biol 129:337-345. PubMed
Takahashi, A., Y. Amemiya, M. Nozaki, S.A. Sower and H. Kawauchi. 2001. Evolutionary significance of proopiomelanocortin in agnathan and chondrichthyes. Comp Biochem Physiol B Biochem Mol Biol 129:283-289.PubMed
Nozaki, M., K. Ominato, A. Takahashi, H. Kawauchi, and S.A. Sower. 2001 Adenohypophysial cell types in the lamprey pituitary: current state of the art. Comp Biochem Physiol B Biochem Mol Biol 129:303-309.PubMed
Fort, D.G., R.L. Rogers, R.R. Paul, M.F. Miller, P. Clark. E.L. Stover, J. Yoshioko, F. Quimby, S.A. Sower, K.L. Reed, K.J. Babbitt, and R. Rolland. 2001. Effects of pond water, sediment and sediment extracts samples from New Hampshire, USA, on early Xenopus development and metamorphosis: comparison to native species. J. Appl. Toxicol. 21:199-209. PubMed
McCann, S.M., S. Karanth, C.A. Mastronardi, W.Les Dees, G. Childs, B. Miller, S. Sower, and W.H. Yu. 2001. Control of gonadotropin secretion by follicle-stimulating hormone-releasing factor, luteinizing hormone-releasing hormone, and leptin. Archives Med Research 32: 1-10. PubMed
2000
Robinson, T.C., S.A. Tobet, and S.A. Sower. 2000. Gonadotropin-releasing hormones in the brain and pituitary of the teleost, the white sucker. Gen. Comp. Endocrinol. 117:381-394. PubMed
Yu, W.H., S. Karanth, S.A. Sower, A.F. Parlow, and S.M. McCann. 2000. The similarity of FSH-releasing factor to lamprey gonadotropin-releasing hormone III (l-GnRH-III). Proc. Soc Exp Biol Med. 224:87-92. PubMed
Gazourian, L., E.L. Evans, L. Hanson, C. Chase and S.A. Sower. 2000. The effects of lamprey GnRH-I, -III and analogs on steroidogenesis in the sea lamprey (Petromyzon marinus). Aquaculture. 188: 147-165.Science Direct
Sower, S.A., K. Suzuki, and K.L. Reed. 2000. Perspective: Evolution of enteropancreatic and brain/central nervous system hormones. Amer Zool. 40: 165-178.
Suzuki, K., R.L. Gamble, and S.A. Sower. 2000. Multiple transcripts encoding lamprey gonadotropin-releasing hormone-I precursors. J. Molec Endocrinol. 24:365-376. PubMed
Nozaki, M., K. Ominato, A. Gorbman and S.A. Sower. 2000. The distribution of lamprey GnRH-III in brains of adult sea lampreys (Petromyzon marinus). Gen. Comp. Endocrinol. 118: 57-67. PubMed
Forlano, P.M., K.P. Maruska, S.A. Sower, J.A. King, and T.C. Tricas. 2000. Differential distribution of gonadotropin-releasing hormone-immunoreactive neurons in the stingray brain: functional and evolutionary considerations. Gen. Comp. Endocrinol. 118:226-248. PubMed
Sower, S.A., K.L. Reed and K.J. Babbitt. 2000. Limb malformations and abnormal sex hormone concentrations in frogs. EHS. 108:1085-1090. PubMed
Sower, S.A., A. J. McGregor, O. Materne, C. Chase, I. Potter, and J.Joss. 2000. Evidence for lamprey GnRH-I and ‚III like molecules in the brains of the Southern Hemisphere lampreys. Geotria australis and Mordacia . Gen. Comp. Endocrinol. 120:168-175 PubMed
Berghman, L.R., E. D'Hondt, N. Puebla, L. Dees, J. Hiney, S. Sower, and F. Vandesande. 2000. Immunocytochemical evidence for the existence of a lamprey luteinizing hormone-releasing hormone type III-like peptide in the chicken hypothalamus. British Poultry Science 41:S56-S57.
1999
Nozaki, M., K. Ominato, A. Takahashi, H. Kawauchi, and S.A. Sower. 1999. Possible gonadotropin cells in the lamprey pituitary: colocalization of mammalian LH-like immunoreactivity and glycoconjugate in adult sea lampreys (Petromyzon marinus). Gen. Comp. Endocrinol. 113:23-31. PubMed
Slater, C.H., C.B. Schreck and S.A. Sower. 1999. Rapid clearance of D-Ala6-Pro9NEt mammalian GnRH (GnRHa) from chinook salmon plasma. North American Journal of Aquaculture 61:315-318.
Dees, W.L., J.K. Hiney, S.A. Sower, W.H. Yu and S.M. McCann. 1999. Immunocytochemical localization of lamprey gonadotropin-releasing hormone in the brain. Peptides 12:1503-1511. PubMed
Oominato, K., M. Nozaki, A. Takahashi, H. Kawauchi, and S.A. Sower. 1999. A lectin cytochemical study in the sea lamprey pituitary. Recent Prog. Mol. Comp. Endocrinol., Proc. Int. Symp. Asia Oceania Soc. Comp. Endocrinol., 3rd. 353-357.
1998
Sower, S.A. 1998. Brain and Pituitary Hormones of lampreys, recent findings and their evolutionary significance. Amer. Zool. 38:15-38.
1997
Gazourian, L., Deragon, K.L., C.F. Chase, D. Pati, H.R. Habibi and S.A. Sower. 1997. Characteristics of GnRH binding in the gonads and effects of lamprey GnRH-I and -III on reproduction in the adult sea lamprey. Gen. Comp. Endocrinol. 108:327-339. PubMed
Gamble, R.L., K. Suzuki, J.A. Heinig, J.H. Youson, F.W. Keeley, and S.A. Sower. 1997. Isolation of cDNA endocing the precursor to lamprey gonadotropin-releasing hormone-I from the brain of the sea lamprey, Petromyzon marinus. XIII International Congress of Comp. Endocrinol. 1:735-738.
MacIntyre, J.K., C. Chase, S.A. Tobet, and S.A. Sower. 1997. The interrelationship of PMY, GABA, and GnRH in the sea lamprey, Petromyzon marinus. XIII
Materne, O.L., L. Gazourian, C. Chase, D. Pati, H.R. Habibi, and S.A. Sower. 1997. Characterization of the gonadotropin-releasing hormone binding sites in the pituitary and gonads of the sexually maturing adult lamprey. International Congress of Comp. Endocrinol. 1:743-746.
Sower, S.A. 1997. Evolution of GnRH in Fish of Ancient Origins. In: "GnRH Neurons: Gene to Behavior" Editors, I.S. Parhar and Y. Sakuma. Brain Shuppan Publishers, Tokyo. 486 pgs.
Tobet, S.A., S.A. Sower and G.A. Schwarting. 1997. Gonadotropin-releasing hormone containing neurons and olfactory fibers during development: from lamprey to mammals. Brain Res. Bull. 44:479-486. PubMed
Yu, W.H., S. Karanth, A. Walczewska, S.A. Sower, and S.M. McCann. 1997. A hypothalamic follicle-stimulating hormone-releasing decapeptide in the rat. Proc. Natl. Acad. Sci. USA. 94:9499-9503. PubMed
1996
Conlon, J.M. and S.A. Sower. 1996. Isolation of a peptide structurally related to mammalian corticostatins from the lamprey Petromyzon marinus. Comp. Biochem. Physiol. 114B:113-137.
Sower, S.A. 1996. Evolution of GnRH in fish of ancient origin. In: Goetz, F.W. and P. Thomas (eds.), Proceedings of the Fifth International Symp. Reprod. Physio. Of Fish. Austin, Texas, 2-8 July, 1995, Fish Symp. 95:209-211.
Tobet, S.A., T.W. Chickering, and S.A. Sower. 1996. Relationship of gonadotropin releasing hormone (GnRH) neurons to the olfactory system in developing lamprey (Petromyzon marinus). J. Comp. Neurology 376:1-15. PubMed
1995
Heinig, J.A., F.W. Keeley, P. Robson, S.A. Sower and J.H. Youson. 1995. The appearance of proopieomelanocortin early in vertebrate evolution: cloning and sequencing of POMC from a lamprey pituitary cDNA library. Gen. Comp. Endocrinol. 99:137-144. PubMed
Nozaki, M., A. Takahashi, H. Kawauchi and S.A. Sower. 1995. Distribution of lamprey adrenocorticotropin and melanotropins in the pituitary of the adult sea lamprey, Petromyzon marinus. Gen. Comp. Endocrinol 98:147-156. PubMed
Sower, S.A., A. Takahashi, M. Nozaki, A. Gorbman, J.H. Youson, J. Joss and H. Kawauchi. 1995. A novel glycoprotein in the olfactory and pituitary systems of larval and adult lampreys. Endocrinology. 136:349-356. PubMed
Sower, S.A., M. Nozaki, C.J. Knox and A. Gorbman. 1995. The occurrence and distribution of GnRH in the brain of Atlantic hagfish, an Agnatha, determined by chromatography and immunocytochemistry. Gen. Comp. Endocrinol. 97:300-307. PubMed
Sower, S.A., M. Goodman and Y. Nishiuchi. 1995. In vivo effects of lamprey GnRH-I and cyclized analogs: A structure-activity study. Neuropeptides. 29:151-156. PubMed
Sower, S.A. 1995. Evolution of GnRH in Fish of Ancient Origin. In: Proceedings of the Fifth International Symp. Reprod. Physiol. of Fish. Austin, Texas, 2-8 July, 1995. Edited by F.W. Goetz and P. Thomas. Fish Symp 95:209-211.
Takahashi, H., M. Nozaki, Y. Amemiya, S.A. Sower, J. Joss, A. Gorbman and H. Kawauchi. 1995. Isolation and characterization of melanotropins from the lamprey pituitary glands. Int. J. Pept. Prot. Res. 46:197-204. PubMed
Takahashi, A., Y. Amemiya, M. Sarashi, S.A. Sower and H. Kawauchi. 1995. Melanotropin and corticotropin are encoded on two distinct genes in the lamprey, the earliest evolved extant vertebrate. Biochem. Biophys. Res. Comm. 213:490-498. PubMed
Tobet, S.A., M. Nozaki, J.H. Youson and S.A. Sower. 1995. Distribution of lamprey gonadotropinreleasing hormone-III (GnRH-III) in brains in larval lampreys (Petromyzon marinus). Cell Tissue Research. 279:261-267.
Waugh, D., J.H. Youson, S.D. Mims, S.A. Sower and J.M. Conlon. 1995. Urotensin II from the river lamprey (Lampetra fluviatilis), the sea Petromyzon marinus), and the paddlefish (Polyodon spathula). PubMed
Youson, J.H., M. Docker and S.A. Sower. 1995. Concentration of gonadotropin-releasing hormones in brain of larval and metamorphosing lampreys of two species with different adult life histories. Proceedings of the Fifth International Symp. Reprod. Physiol. of Fish. Austin, Texas 2-8 July, 1995. Edited by F.W. Goetz and P. Thomas. FishSymp 95:83.
1994
Conlon, J.M., A. Balasubramaniam and S.A. Sower. 1994. Purification and steroidogenic activity of a neuropeptide Y-related peptide from the brain of the sea lamprey. Reg. Peptides. 50:167-175.
Deragon, K. and S.A. Sower. 1994. Effects of lamprey gonadotropin-releasing hormone-III on steroidogenesis and spermiation in male sea lampreys. Gen. Comp. Endocrinol. 95:363-367. PubMed
Holmes, J.A., F.W.H. Beamish, J.G. Seelye, S.A. Sower and J.H. Youson. 1994. Long-term influence of water temperature, photoperiod and food deprivation on metamorphosis of sea lampreys, Petromyzon marinus. Can. J. Fish. Aquat. Sci. 51:2045-2051.
Knox, C.J., S.K. Boyd and S.A. Sower. 1994. Characterization and localization of gonadotropin-releasing hormone receptors in the adult sea lamprey, Petromyzon marinus. Endocrinology 134:492-498. PubMed
Nozaki, M., A. Gorbman and S.A. Sower. 1994. Diffusion between the neurohypophysis and the adenohypophysis of lampreys, Petromyzon marinus. Gen. Comp. Endocrinol. 96:385-391. PubMed
Sower, S.A., Y.C. Chiang, and J.M. Conlon. 1994. Polygenic expression of somatostatin in lamprey. Peptides 15:151-154. PubMed
Waugh, D., S.A. Sower, C. Bjenning and J.M. Conlon. 1994. Novel tachykinins from the brain of the sea lamprey, Petromyzon marinus, and the skate, Raja rhina. Peptides. 15:155-161. PubMed
Wright, G.M., K.M. McBurney, J.H. Youson and S.A. Sower. 1994. Distribution of lamprey gonadotropin-releasing hormone in the brain and pituitary of larval, metamorphic and adult sea lamprey, Petromyzon marinus. Can. J. Zool. 72:48-53.
1993
Conlon, J.M., F. Collin, Y.C. Chiang, S.A. Sower and H. Vaudry. 1993. Two molecular forms of gonadotropin- releasing hormone from the brain of the frog, Rana ridibunda: purification, characterization and distribution. Endocrinology. 132:2117-2123. PubMed
Sower, S.A., Y.C. Chiang, S. Lovas and J.M. Conlon. 1993. Primary structure and biological activity of a third gonadotropin-releasing hormone from lamprey brain. Endocrinology. 132:1125-1131. PubMed
Calvin, J.L., C.H. Slater, T.G. Bolduc, A.P. Laudano and S.A. Sower. 1993. Multiple molecular forms of gonadotropin-releasing hormone in the brains of an elasmobranch: evidence for ir-lamprey GnRH. Peptides. 14:725-729. PubMed
Youson, J.H., J.A. Holmes, J.A. Guchardi, J.G. Seelye, R. Beaver, J.E. Gersmehl, S.A. Sower, and F.W.H. Beamish. 1993. The importance of condition factor and the influence of water temperature and photoperiod in metamorphosis of sea lampreys, Petromyzon marinus. Can. J. Fish. Aquat. Sci. 50:2448-2456.
1992
Lewis, K.M. and S.A. Sower. 1992. Effects of dietary testosterone on growth and sex ratio of juvenile Atlantic salmon (Salmo salar). Fish. Physiol. Biochem. 9: 513- 517.
Sower, S.A. , K.H. Karlson, and R.S. Fawcett. 1992. Changes in plasma thyroxine, estradiol-17þ, and 17a,20þ-dihydroxy-4-pregnen-3-one during smoltification of coho salmon. Gen. Comp. Endocrinol. 85:278-285. PubMed
Bolduc, T.G. and S.A. Sower. 1992. Changes in brain gonadotropin-releasing hormone, plasma estradiol 17-þ and progesterone during the final reproductive cycle of the female sea lamprey, Petromyzon marinus. J. Exp. Zool. 264:55-63. PubMed
Hines, G.A., S.A. Watts , S.A. Sower and C.W. Walker. 1992. Sex steroid levels in the testes, ovaries, and pyloric caeca during the annual reproductive cycle of the sea star, Asterias vulgaris. Gen. Comp. Endocrinol. 87:451-460. PubMed
Lewis, K.M., P. Swanson, and S.A. Sower. 1992. Changes in brain salmon gonadotropin releasing hormone, plasma gonadotropin I, and plasma thyroxine in chinook salmon (Oncorhynchus tschawytscha) during smoltification. Gen. Comp. Endocrinol. 87:461-470. PubMed
Murray , M.K. and S.A. Sower. 1992. Estrogen- and progesterone-dependent secretory changes in the uterus of the sheep. Biol. Reprod. 47:917-924. PubMed
1991
Sower, S.A. and L.O. Larsen. 1991. Plasma estradiol and progesterone after hypophysectomy and substitution with pituitary in female sea lampreys (Petromyzon marinus). Gen. Comp. Endocrinol. 81:93-96. PubMed
Sower, S.A. and R.S. Fawcett. 1991. Changes in gill Na+,K+-ATPase, thyroxine and triiodothyronine of coho salmon held in two different rearing densities during smoltification. Comp. Biochem. Physiol. 99A:85-89.
Youson, J.H. and S.A. Sower. 1991. Concentration of brain gonadotropin-releasing hormone during metamorphosis in the lamprey, Petromyzon marinus. J. Exp. Zool. 259: 399-404.
1990
Sower, S.A. 1990. Gonadotropin-releasing hormone in primitive fishes. Progress in Clinical and Biological Research. 342:73-78. PubMed
Sower, S.A. 1990. Neuroendocrine control of reproduction in lampreys. Fish Physiol. and Biochem. 8:365-374.
Fahien, C.M. and S.A. Sower. 1990. Relationship between brain gonadotropin-releasing hormone and final reproductive period of the adult male sea lamprey, Petromyzon marinus. Gen. Comp. Endocrinol. 80:427-437. PubMed
Hines, G.A., S.A. Watts , S.A. Sower and C.W. Walker. 1990. Sex steroid extraction from echinoderm tissues. J. Liquid Chromat. 13:2489-2498.
1989
Sower, S.A. 1989. Effects of lamprey gonadotropin-releasing hormone and analogs on steroidogenesis and spermiation in male sea lampreys. Fish Physiol. and Biochem. 7:101-107.
Borghetti, J.R., R.N. Iwamoto, R.W. Hardy, and S.A. Sower. 1989. The effects of naturally-occurring androgens in practical diets fed to normal-sired and jack-sired progeny of coho salmon (Oncorhynchus kisutch). Aquaculture 77:51-60.
1988
Stopa, E.G., S.A. Sower, C.N. Svendsen, and J.C. King. 1988. Polygenic expression of gonadotropin-releasing hormone (GnRH) in human? Peptides. 9:419-423.
King, J. C., S.A. Sower, and E.L.P. Anthony. 1988. Neuronal systems immunoreactive with antiserum to lamprey gonadotropin-releasing hormone in the brain of Petromyzon marinus. Cell Tissue Research. 253:1-8.
Lane, T., H. Kawauchi, and S.A. Sower. 1988. Arginine vasotocin from the pituitary gland of the lamprey (Petromyzon marinus): Isolation and amino acid sequence. Gen. Comp. Endocrinol. 70:152-157.
Carolsfeld, J., N.M. Sherwood, H. Kreiberg, and S.A. Sower 1988. Induced sexual maturation of herring using GnRH "Quick Release" cholesterol pellets. Aquaculture 70:169-181.
1987
Sower, S.A. , J.A. King, R.P. Millar, N.M. Sherwood, and D.R. Marshak. 1987. Comparative biological properties of lamprey gonadotropin-releasing hormone in vertebrates. Endocrinology 120:773-779.
Linville, J., L. Hansen, and S.A. Sower. 1987. Endocrine events associated with spawning behavior in the sea lamprey (Petromyzon marinus). Hormones and Behavior 21:105-107.
Sower, S.A. 1987. Biological action of lamprey gonadotropin-releasing hormone in lampreys. Proceedings of the Third International Symp. Reprod. Physiol. of Fish. St. John's Newfoundland , Canada 2-7, August, 1987 pg 40-41.
Ho, M.S., D. Press and S.A. Sower. 1987. Identification of an estrogen receptor in the testis of the sea lamprey, Petromyzon marinus. Gen. Comp. Endocrinol. 67:119-125.
1986
Sherwood , N.M. , S.A. Sower, D.R. Marshak, B.A. Fraser, and M.J. Brownstein. 1986. Primary structure of gonadotropin-releasing hormone in lamprey brain. J. Biol. Chem. 15:4812-4819.
1985
Sower, S.A. , E. Plisetskaya, and A. Gorbman. 1985. Changes in plasma steroid, thyroid hormones, and insulin during final maturation and spawning of the sea lamprey, Petromyzon marinus. Gen. Comp. Endocrinol. 58:259-269.
Buckingham, J.C., J.H. Leach, E. Plisetskaya, S.A. Sower, and A. Gorbman. 1985. Corticotrophin-like bioactivity in the pituitary gland and brain of the Pacific hagfish, Eptatretus stouti. Gen. Comp. Endocrinol. 57:434-437.
Dickhoff, W.W., S.A. Sower, and A. Gorbman. 1985. Hepatic estrogen binding during vitellogenesis in Pacific hagfish, Eptatretus stouti. Current Trends in Comparative Endocrinology (eds. B. Lotts and W. Holmes, Hong Kong University Press) 1:347-349.
Sherwood , N.M. and S.A. Sower. 1985. A new family member for gonadotropin-releasing hormone. Neuropeptides 6:205-214.
Sower, S.A. , E. Plisetskaya, and A. Gorbman. 1985. Steroid and thyroid hormone profiles following a single injection of partly purified salmon gonadotropin or GnRH analogues in male and female sea lamprey. J. Exp. Zoology 235:403-408.
Sower, S.A. and R.N. Iwamoto. 1985. The identification of the sex steroid, testosterone, in various commercial salmon diets. Aquaculture 49:11-17.
1984
Sower, S.A. , R.N. Iwamoto, W.W. Dickhoff, and A. Gorbman. 1984. Ovulatory and steroidal responses in coho salmon and steelhead trout following administration of salmon gonadotropin and D-Ala6,des Gly10gonadotropin-releasing hormone ethylamide (GnRHa). Aquaculture 43:35-46.
Sower, S.A. , W.W. Dickhoff, J. Mighell, T. Flagg, and C. Mahnken. 1984. Effects of estradiol and diethylstilbesterol on sex reversal and mortality in Atlantic salmon (Salmo salar). Aquaculture 43:75-82.
Sower, S.A. , C.V. Sullivan, and A. Gorbman. 1984. Changes in plasma estradiol and effects of triiodothyronine on plasma estradiol during smoltification of coho salmon, Oncorhynchus kisutch. Gen. Comp. Endocrinol. 54:486-492.
1983
Sower, S.A. , C.B. Schreck, and M. Evenson. 1983. Effects of steroids and steroid antagonists on growth, gonadal development, and RNA/DNA ratios in juvenile steelhead trout. Aquaculture 32:243-254.
Plisetskaya, E., S.A. Sower, and A. Gorbman. 1983. The effects of insulin insufficiency on plasma thyroid hormones and some metabolic constituents in Pacific hagfish, Eptatretus stouti. Gen. Comp. Endocrinol. 49:315-319.
Martin, R.W., J. Myers, S.A. Sower, D. Phillips, and C. McAuly. 1983. Ultrasonic imaging, a potential tool for sex determination of live fish. North American Journal of Fisheries Management 3: 258-264.
Sower, S.A. , W.W. Dickhoff, A. Gorbman, J.E. Rivier, and W.W. Vale. 1983. Ovulatory and steroid responses in the lamprey following administration of salmon gonadotropin and agonistic and antagonistic analogues of GnRH. Can. J. Zool. 61:2653-2659.
1982
Sower, S.A. , C.B. Schreck, and E.M. Donaldson. 1982. Hormone induced ovulation of coho salmon (Oncorhynchus kisutch) held in seawater and fresh water. Can. J. Fish Aquat. Sci. 39:627-632.
Sower, S.A. and C.B. Schreck. 1982. Steroid and thyroid hormones during sexual maturation of coho salmon (Oncorhynchus kisutch) in seawater or fresh water. Gen. Comp. Endocrinol. 47:42-53.
Sower, S.A. and C.B. Schreck. 1982. In vitro induction of final maturation of oocytes from coho salmon. Trans. Amer. Fish. Soc. 111:399-403.
Sower, S.A. and C.B. Schreck. 1982. Sexual maturation of coho salmon (Oncorhynchus kisutch): accelerated ovulation and circulating steroid hormone and ion levels of salmon in freshwater and seawater. Proc. North Pacific Aquaculture Symp. , Alaska; Oregon. Alaska Sea Grant Publication. 82-2 January, pp. 227-235.