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  • Hiroshi Tamura, Akihisa Takasaki, +11 authors Norihiro Sugino
  • Biology, Medicine
  • Journal of pineal research
  • 2008 (First Publication: 1 April 2008)
  • We investigated the relationship between oxidative stress and poor oocyte quality and whether the antioxidant melatonin improves oocyte quality. Follicular fluid was sampled at oocyte retrievalExpand
  • Norihiro Sugino, Shiro Kashida, Ayako Karube-Harada, Shuji Takiguchi, Hisanori Kato
  • Biology, Medicine
  • Reproduction
  • 2002 (First Publication: 1 March 2002)
  • Immunohistochemistry for vascular endothelial growth factor (VEGF) and its receptors, fms-like tyrosine kinase (flt-1) and kinase insert domain-containing region (KDR), was performed on humanExpand
  • Norihiro Sugino, Ayako Karube-Harada, Toshiaki Taketani, Aki Sakata, Yasuhiko Nakamura
  • Biology, Medicine
  • The Journal of reproduction and development
  • 2004
  • The present study was undertaken to investigate whether withdrawal of estrogen and progesterone (EP-withdrawal) stimulates prostaglandin F2alpha (PGF2alpha) production through oxygen radicalExpand
  • Norihiro Sugino, Shiro Kashida, Shuji Takiguchi, Akihiro Karube, Hisanori Kato
  • Biology, Medicine
  • The Journal of clinical endocrinology and…
  • 2000 (First Publication: 1 October 2000)
  • To investigate the possible role of vascular endothelial growth factor (VEGF) and its receptors in the human corpus luteum (CL), expression of VEGF and its receptors, the fms-like tyrosine kinase andExpand