Kawashima A., Osman B., Takashima M., Kikuchi A., Kohchi S., Satoh E., Tamba M., Matsuda M., Okamura N. (2009) CABS1 Is a Novel Calcium-Binding Protein Specifically Expressed in Elongate Spermatids of Mice. Biol. Reprod., 80: 1293–1304.

Sakakura Y., Sato H., Shiiya A., Tamba M., Sagara J., Matsuda M., Okamura N., Makino N., Bannai S. (2007) Expression and function of cysteine/glutamate transporter in neutrophils. J. Leukoc. Biol., 81: 974-982.

Takahashi M., Nagai T., Okamura N., Takahashi H., Okano A. (2002) Promoting effect of beta-mercaptoethanol on in vitro development under oxidative stress and cystine uptake of bovine embryos. Biol. Reprod., 66: 562-567.

Okamura N., Kiuchi S., Tamba M., Kashima T., Hiramoto S., Baba T., Dacheux F., Dacheux J-L., Sugita Y., Jin Y-Z. (1999) A porcine homologue of the major secretory protein of human epididymis, HE1, specifically binds cholesterol. Biochim. Biophys. Acta, 1438:377-387.