Shimoyama, K. & Kawano, M. & Ogawa, N. & Tokunaga, K. & Takagi, W. & Kobayashi, M. & Hyodo, S. (2023)
Progesterone initiates tendril formation in the oviducal gland during egg encapsulation in cloudy catshark (Scyliorhinus torazame). Zoological Letters, 9(1), Article 13
DOI: 10.1186/s40851-023-00211-y

Honda, Y. & Ogawa, N. & Wong, M.K.S. & Tokunaga, K. & Kuraku, S. & Hyodo, S. & Takagi, W. (2022)
Molecular mechanism of nutrient uptake in developing embryos of oviparous cloudy catshark (Scyliorhinus torazame). PLoS ONE, 17(3), Article e0265428
DOI: 10.1371/journal.pone.0265428

Inoue, T. & Shimoyama, K. & Saito, M. & Wong, M.K.S. & Ikeba, K. & Nozu, R. & Matsumoto, R. & Murakumo, K. & Sato, K. & Tokunaga, K. & Kofuji, K. & Takagi, W. & Hyodo, S. (2022)
Long-term monitoring of egg-laying cycle using ultrasonography reveals the reproductive dynamics of circulating sex steroids in an oviparous catshark, Scyliorhinus torazame. General and Comparative Endocrinology, 327, Article 114076
DOI: 10.1016/j.ygcen.2022.114076

Aburatani, N. & Takagi, W. & Wong, M.K.S. & Kuraku, S. & Tanegashima, C. & Kadota, M. & Saito, K. & Godo, W. & Sakamoto, T. & Hyodo, S. (2022)
Molecular and morphological investigations on the renal mechanisms enabling euryhalinity of red stingray Hemitrygon akajei. Frontiers in Physiology, 13, Article 953665
DOI: 10.3389/fphys.2022.953665

Katsu, Y. & Shariful, I.M.D. & Lin, X. & Takagi, W. & Urushitani, H. & Kohno, S. & Hyodo, S. & Baker, M.E. (2021)
N-terminal Domain Regulates Steroid Activation of Elephant Shark Glucocorticoid and Mineralocorticoid Receptors. Journal of Steroid Biochemistry and Molecular Biology, 210, Article 105845
DOI: 10.1016/j.jsbmb.2021.105845

Aburatani, N. & Takagi, W. & Wong, Mk. & Kadota, M. & Kuraku, S. & Tokunaga, K. & Kofuji, K. & Saito, K. & Godo, W. & Sakamoto, T. & Hyodo, S. (2020)
Facilitated NaCl Uptake in the Highly Developed Bundle of the Nephron in Japanese Red Stingray Hemitrygon akajei Revealed by Comparative Anat-omy and Molecular Mapping. Zoological Science, 37(5), 458–466
DOI: 10.2108/zs200038

Honda, Y. & Takagi, W. & Wong, M.K.S. & Ogawa, N. & Tokunaga, K. & Kofuji, K. & Hyodo, S. (2020)
Morphological and functional development of the spiral intestine in cloudy catshark (Scyliorhinus torazame). Journal of Experimental Biology, 223(13), Article jeb225557
DOI: 10.1242/jeb.225557

Katsu, Y. & Kohno, S. & Oka, K. & Lin, X.Z. & Otake, S. & Pillai, N.E. & Takagi, W. & Hyodo, S. & Venkatesh, B. & Baker, M.E. (2019)
Transcriptional activation of elephant shark mineralocorticoid receptor by corticosteroids, progesterone, and spironolactone. Science Signaling, 12(584): eaar2668
DOI: 10.1126/scisignal.aar2668

Imaseki, I. & Wakabayashi, M. & Hara, Y. & Watanabe, T. & Takabe, S. & Kakumura, K. & Honda, Y. & Ueda, K. & Murakumo, K. & Matsumoto, R. & Matsumoto, Y. & Nakamura, M. & Takagi, W. & Kuraku, S. & Hyodo, S. (2019)
Comprehensive analysis of genes contributing to euryhalinity in the bull shark, Carcharhinus leucas; Na+-Cl- co-transporter is one of the key renal factors upregulated in acclimation to low-salinity environment. Journal of Experimental Biology, 222(12), Article jeb201780
DOI: 10.1242/jeb.201780

Takagi, W. & Kajimura, M. & Tanaka, H. & Hasegawa, K. & Ogawa, S. & Hyodo, S. (2017)
Distributional shift of urea production site from the extraembryonic yolk sac membrane to the embryonic liver during the development of cloudy catshark (Scyliorhinus torazame). Comparative Biochemistry and Physiology – Part A, Molecular & Integrative Physiology, 211, 7–16
DOI: 10.1016/j.cbpa.2017.05.019

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

Yamaguchi, Y. & Takagi, W. & Kuraku, S. & Moriyama, S. & Bell, J.D. & Sealea, A.P. & Lerner, D.T. & Grau, E.G. & Hyodo, S. (2015)
Discovery of conventional prolactin from the holocephalan elephant fish, Callorhinchus milii. General and Comparative Endocrinology, 224, 216–227
DOI: 10.1016/j.ygcen.2015.08.020

Onimaru, K. & Kuraku, S. & Takagi, W. & Hyodo, S. & Sharpe, J. & Tanaka, M. (2015)
A shift in anterior-posterior positional information underlies the fin-to-limb evolution. eLife, 4, Article e07048
DOI: 10.7554/eLife.07048

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

Hyodo, S. & Kakumura, K. & Takagi, W. & Hasegawa, K. & Yamaguchi, Y. (2014)
Morphological and functional characteristics of the kidney of cartilaginous fishes: with special reference to urea reabsorption. American Journal of Physiology. Regulatory, Integrative and Comparative Physiology, 307(12), R1381–R1395
DOI: 10.1152/ajpregu.00033.2014

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