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Tetsuji Okazaki

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Masayuki Shimada; Ikko Kawashima; Toshihiro Mihara; Tetsuji Okazaki
Anti-bacterial factors secreted from cumulus cells of ovulated COCs enhance sperm capacitation during in vitro fertilization.
Tetsuji Okazaki; Masayuki Shimada
New strategies of boar sperm cryopreservation: development of novel freezing and thawing methods with a focus on the roles of seminal plasma.
Tetsuji Okazaki; Teiichi Akiyoshi; Masakazu Kan; Manabu Mori; Hisanori Teshima; Masayuki Shimada
Artificial insemination with seminal plasma improves the reproductive performance of frozen-thawed boar epididymal spermatozoa.

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2013: Masayuki Shimada; Ikko Kawashima; Toshihiro Mihara; Tetsuji Okazaki
Anti-bacterial factors secreted from cumulus cells of ovulated COCs enhance sperm capacitation during in vitro fertilization.
American journal of reproductive immunology (New York, N.Y. : 1989) 2013;69(2):168-79.
2012: Tetsuji Okazaki; Masayuki Shimada
New strategies of boar sperm cryopreservation: development of novel freezing and thawing methods with a focus on the roles of seminal plasma.
Animal science journal = Nihon chikusan Gakkaihō 2012;83(9):623-9.
2012: Tetsuji Okazaki; Teiichi Akiyoshi; Masakazu Kan; Manabu Mori; Hisanori Teshima; Masayuki Shimada
Artificial insemination with seminal plasma improves the reproductive performance of frozen-thawed boar epididymal spermatozoa.
Journal of andrology 2012;33(5):990-8.
2011: Youko Fujita; Chiaki Ikeda; Rena Kushino; Zhilin Liu; Toshihiro Mihara; Hiroaki Negishi; Tetsuji Okazaki; JoAnne S Richards; Manami Shitanaka; Masayuki Shimada
Toll-like receptors (TLR) 2 and 4 on human sperm recognize bacterial endotoxins and mediate apoptosis.
Human reproduction (Oxford, England) 2011;26(10):2799-806.
2011: Tetsuji Okazaki; Shuji Yoshida; Hisanori Teshima; Masayuki Shimada
The addition of calcium ion chelator, EGTA to thawing solution improves fertilizing ability in frozen-thawed boar sperm.
Animal science journal = Nihon chikusan Gakkaihō 2011;82(3):412-9.
2010: Tetsuji Okazaki; Toshihiro Mihara; Youko Fujita; Shuji Yoshida; Hisanori Teshima; Masayuki Shimada
Polymyxin B neutralizes bacteria-released endotoxin and improves the quality of boar sperm during liquid storage and cryopreservation.
Theriogenology 2010;74(9):1691-700.
2008: Ikkou Kawashima; Tetsuji Okazaki; Noritaka Noma; Masahide Nishibori; Yasuhisa Yamashita; Masayuki Shimada
Sequential exposure of porcine cumulus cells to FSH and/or LH is critical for appropriate expression of steroidogenic and ovulation-related genes that impact oocyte maturation in vivo and in vitro.
Reproduction (Cambridge, England) 2008;136(1):9-21.
2008: Masayuki Shimada; Yoshiari Yanai; Tetsuji Okazaki; Noritaka Noma; Ikkou Kawashima; Takahide Mori; JoAnne S Richards
Hyaluronan fragments generated by sperm-secreted hyaluronidase stimulate cytokine/chemokine production via the TLR2 and TLR4 pathway in cumulus cells of ovulated COCs, which may enhance fertilization.
Development (Cambridge, England) 2008;135(11):2001-11.
2007: Masayuki Shimada; Yoshiari Yanai; Tetsuji Okazaki; Yasuhisa Yamashita; Venkataraman Sriraman; Michael Wilson; JoAnne S Richards
Synaptosomal-associated protein 25 gene expression is hormonally regulated during ovulation and is involved in cytokine/chemokine exocytosis from granulosa cells.
Molecular endocrinology (Baltimore, Md.) 2007;21(10):2487-502.
2004: Masayuki Shimada; Yasuhisa Yamashita; Junya Ito; Tetsuji Okazaki; Kazumi Kawahata; Masahide Nishibori
Expression of two progesterone receptor isoforms in cumulus cells and their roles during meiotic resumption of porcine oocytes.
Journal of molecular endocrinology 2004;33(1):209-25.
2003: Tetsuji Okazaki; Masahide Nishibori; Yasuhisa Yamashita; Masayuki Shimada
LH reduces proliferative activity of cumulus cells and accelerates GVBD of porcine oocytes.
Molecular and cellular endocrinology 2003;209(1-2):43-50.
2003: Yasuhisa Yamashita; Masayuki Shimada; Tetsuji Okazaki; Teruo Maeda; Takato Terada
Production of progesterone from de novo-synthesized cholesterol in cumulus cells and its physiological role during meiotic resumption of porcine oocytes.
Biology of reproduction 2003;68(4):1193-8.