Hasegawa, K. & Kato, A. & Watanabe, T. & Takagi, W. & Romero, M.F. & Bell, J.D. & Toop, T. & Donald, J.A. & Hyodo, S. (2016)
Sulfate transporters involved in sulfate secretion in the kidney are localized in the renal proximal tubule II of the elephant fish (Callorhinchus milii). American Journal of Physiology. Regulatory, Integrative and Comparative Physiology, 311(1), R66–78
DOI: 10.1152/ajpregu.00477.2015

Kakumura, K. & Takabe, S. & Takagi, W. & Hasegawa, K. & Konno, N. & Bell, J.D. & Toop, T. & Donald, J.A. & Kaneko, T. & Hyodo, S. (2015)
Morphological and molecular investigations of the holocephalan elephant fish nephron: the existence of a countercurrent-like configuration and two separate diluting segments in the distal tubule. Cell and Tissue Research, 362(3), 677–688
DOI: 10.1007/s00441-015-2234-4

Takagi, W. & Kajimura, M. & Tanaka, H. & Hasegawa, K. & Bell, J.D. & Toop, T. & Donald, J.A. & Hyodo, S. (2014)
Urea-based osmoregulation in the developing embryo of oviparous cartilaginous fish (Callorhinchus milii): contribution of the extraembryonic yolk sac during the early developmental period. Journal of Experimental Biology, 217(8), 1353–1362
DOI: 10.1242/jeb.094649

Takagi, W. & Kajimura, M. & Bell, J.D. & Toop, T. & Donald, J.A. & Hyodo, S. (2012)
Hepatic and extrahepatic distribution of ornithine urea cycle enzymes in holocephalan elephant fish (Callorhinchus milii). Comparative Biochemistry and Physiology – Part B, Biochemistry and Molecular Biology, 161(4), 331–340
DOI: 10.1016/j.cbpb.2011.12.006

Yamaguchi, Y. & Kaiya, H. & Konno, N. & Iwata, E. & Miyazato, M. & Uchiyama, M. & Bell, J.D. & Toop, T. & Donald, J.A. & Brenner, S. & Venkatesh, B. & Hyodo, S. (2012)
The fifth neurohypophysial hormone receptor is structurally related to the V2-type receptor but functionally similar to V1-type receptors. General and Comparative Endocrinology, 178(3), 519–528
DOI: 10.1016/j.ygcen.2012.07.008

Kakumura, K. & Watanabe, S. & Bell, J.D. & Donald, J.A. & Toop, T. & Kaneko, T. & Hyodo, S. (2009)
Multiple urea transporter proteins in the kidney of holocephalan elephant fish (Callorhinchus milii). Comparative Biochemistry and Physiology – Part B, Biochemistry and Molecular Biology, 154(2), 239–247
DOI: 10.1016/j.cbpb.2009.06.009

Jennings, B.L. & Bell, J.D. & Hyodo, S. & Toop, T. & Donald, J.A. (2007)
Mechanisms of vasodilation in the dorsal aorta of the elephant fish, Callorhinchus milii (Chimaeriformes: Holocephali). Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 177(5), 557–567
DOI: 10.1007/s00360-007-0154-7

Hyodo, S. & Bell, J.D. & Healy, J.M. & Kaneko, T. & Hasegawa, S. & Takei, Y. & Donald, J.A. & Toop, T. (2007)
Osmoregulation in elephant fish Callorhinchus milii (Holocephali), with special reference to the rectal gland. Journal of Experimental Biology, 210(8), 1303–1310
DOI: 10.1242/jeb.003418

Hyodo, S. & Kawakoshi, A. & Bartolo, R.C. & Takei, Y. & Toop, T. & Donald, J.A. (2006)
Extremely high conservation in the untranslated region as well as the coding region of CNP mRNAs throughout elasmobranch species. General and Comparative Endocrinology, 148(2), 181–186
DOI: 10.1016/j.ygcen.2006.02.014

Edwards, S.L. & Donald, J.A. & Toop, T. & Donowitz, M. & Tse, C.-M. (2002)
Immunolocalisation of sodium/proton exchanger-like proteins in the gills of elasmobranchs. Comparative Biochemistry and Physiology – Part A, Molecular & Integrative Physiology, 131(2), 257–265
DOI: 10.1016/S1095-6433(01)00449-4

Donald, J.A. & Toop, T. & Evans, D.H. (1997)
Distribution and Characterization of Natriuretic Peptide Receptors in the Gills of the Spiny Dogfish, Squalus acanthias. General and Comparative Endocrinology, 106(3), 338–347
DOI: 10.1006/gcen.1997.6873

Evans, D.H. & Toop, T. & Donald, J. & Forrest, J.N. (1993)
C-Type Natriuretic Peptides Are Potent Dilators of Shark Vascular Smooth Muscle. Journal of Experimental Zoology, 265, 84–87

Evans, D.H. & Chipouras, E. & Toop, T. & Donald, J.A. (1993)
The effect of Ca2+, Cd2+ and Ni2+ on detergent-permeabilized vascular smooth muscle from the shark, Squalus acanthias. Toxicology, 83(1–3), 1–8
DOI: 10.1016/0300-483X(93)90086-8