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  • Keita Suzuki, Akinori Asano, Britt Eriksson, Koji Niwa, Takashi Nagai, Heriberto Rodríguez-Martínez
  • Medicine, Biology
  • International journal of andrology
  • 2002 (First Publication: 1 April 2002)
  • In the present study, the effects of seminal plasma (SP), cumulus-oocyte-complexes (COCs) conditioned medium (CCM) and hyaluronan (HA) on functional changes and in vitro fertilizing ability ofExpand
  • Lynn R. Fraser, Lalantha R. Abeydeera, Koji Niwa
  • Medicine, Biology
  • Molecular reproduction and development
  • 1995 (First Publication: 1 February 1995)
  • We have used chlortetracycline (CTC) analysis to investigate mechanisms that may play important roles during bull sperm capacitation in a culture medium (containing glucose, heparin, and caffeine)Expand
  • Wen-Yan Wang, Lalantha R. Abeydeera, Lynn R. Fraser, Koji Niwa
  • Medicine, Biology
  • Journal of reproduction and fertility
  • 1995 (First Publication: 1 July 1995)
  • Cumulus-enclosed pig oocytes were matured in vitro, freed from cumulus cells, and inseminated with frozen-thawed ejaculated spermatozoa in a chemically defined protein-free medium containing 37.0Expand
  • H Funahashi, Atsushi Asano, Toshiyuki Fujiwara, Takashi Nagai, Koji Niwa, Lynn R. Fraser
  • Biology, Medicine
  • Molecular reproduction and development
  • 2000
  • Both fertilization promoting peptide (FPP) and adenosine stimulate capacitation and inhibit spontaneous acrosome loss in epididymal mouse spermatozoa; these responses involve modulation of theExpand