܁@Award and Prize
Zoological Science Award (1988, 1998)
{wPrize of the Zoological Society of Japan (1993)


EYazawa, T., Nakayama, Y., Fujimoto, K., Matsuda, Y., Abe, K., Kitano, T., Abe, S.-I. and Yamamoto, T.
Abnormal Spermatogenesis at Low Temperatures in the Japanese Red-bellied Newt, Cynops pyrrhogaster: Possible Biological Significance of the Cessation of Spermatocytogenesis Mol Reprod Dev. 2003, 66, 60-66.

EAbe K., Jin, Y., Yamamoto, T. and Abe S.-I.
Human Recombinant Stem Cell Factor Promotes Spermatogonial Proliferation, but Not Meiosis Initiation in Organ Culture of Newt Testis Fragments. Biochim. Biophys. Res. Comm. 2002, 294, 695-699.

EFujimoto, K., Yamamoto, T., Kitano, T. and Abe S.-I.
Promotion of Cathepsin L Activity in Newt Spermatogonial Apoptosis Induced by Prolactin. FEBS, 2002, 521, 43-46.

EYazawa, T., Yamamoto, T., Jin, Y. and Abe, S.-I.
Follicle-Stimulating Hormone is Indispensable for the Last Spermatogonial Mitosis Preceding Meiosis Initiation in Newts (Cynops pyrrhogaster) ..Biol. Reprod., 2002, 66, 14-20.

EYamamoto, T., Nakayama, Y. and Abe S.-I. (2001)
Mammalian Follicle-Stimulating Hormone (FSH) and Insulin-Like Growth Factor (IGF-I) Up-regulate IGF-I Gene Expression in Organ Culture of Newt Testis; Molecular cloning and gene expression of newt IGF-I and IGF-I receptor. Mol. Repr. Dev., 60, 56-64.

E Kitano, T., Takamune, K., Nagahama, Y. and Abe, S.-I. (2001)
Role of P450 aromatase in gonadal sex differentiation in Japanese flounder (Paralichthys olivaceus). Environ. Sci. 8, 001-011.

E Yazawa, T., Fujimoto, K., Yamamoto, T. and Ab, S.-I. (2001)
Caspase Activity in Newt Spermatogonial Apoptosis Induced by Prolactin and Cycloheximide Mol. Repr. Dev., 59, 209-214.

EYazawa, T., Yamamoto, T. and Abe, S.-I.
Prolactin Induces Apoptosis in the Penultimate Spermatogonial Stage of the Testes in Japanese Red-Bellied Newt (Cynops pyrrhogaster). Endocrinology, 2000, 141, 2027-2032.

EYazawa, T., Yamamoto, T., Nakayama, Y., Hamada, S. and Abe, S.-I. (2000)
Conversion from mitosis to meiosis: morphology and expression of PCNA and DMC 1 during newt spermatogenesis. Dev. Growth & Differ., 42, 603-611.

E Kitano, T., Takamune, K., Nagahama, Y., and Abe, S.-I. (2000)
Aromatase inhibitor and 17-methyltestosterone cause sex-reversesal from genetical females to phenotypic males and suppression of P450 aromatase(P450arom)gene expressin in Japanese flounder (Paralichthys olivaceus). Mol. Repr. Dev., 56, 1-5.

EKitano, T., Takamune, T., Kobayashi, T., Nagahama, Y. and Abe, S.-I. (1999)
Suppression of P450 aromatase gene expression in sex-reversed males produced by rearing genetically female larvae at a high water temperature during a period of sex differentiation in the Japanese flounder (Paralichthys olivaceus). J. Mol. Endocr.,23,pp.167-176

EYazawa, T., Yamamoto, K., Kikuyama, S., and Abe, S.-I. (1999)
Elevation of Plasma Prolactin Concentrations by Low Temperature is the Cause of Spermatogonial Cell Death in the Newt, Cynops pyrrhogaster. Gen. Comp. Endocr., 113, 302-311.

EIto, R. and Ab, S.-I. (1999)
FSH-initiated differentiation of newt spermatogonia to primary spermatocytes in germ-somatic cell reaggregates cultured within a collagen matrix. Int. J. Dev. Biol., 43: 111-116.

ENakayama, Y., Yamamoto, T. and Abe, S.-I.
IGF-I, IGF-II and insulin promote differentiation of spermatogonia toprimary spermatocytes in organ culture of newt testes. Int. J. Dev. Biol.,1999, 43, 343-347.

EAbe, S. -I. and Ji, Z. -S.
Initiation and stimulation of spermatogenesis in vitro by mammalian follicle-stimulating hormone in the Japanese newt, Cynops pyrrhogaster. Int. J. Dev. Biol.., 1994, 38, 201-208.

EJi,, Z. -S., Kubokawa, K., Ishii, S. and Abe, S. -I.
Differentiation of secondary spermatogonia to primary spermatocytes by mammalian follicle-stimulating hormone in organ culture of testes fragments from the newt, Cynops pyrrhogaster. Develop., Growth and Differ., 1992, 34 (6), 649-660.

EAbe, S. -I.
Differentiation of spermatogenic cells from vertebrates in vitro. Int. Rev. Cytol. 1987, 109, 159-209.