Keisuke Koyama

Immunology: Diversity of the blocking effects of antisperm antibodies on fertilization in human and mouse

Hiroaki Shibahara, Minoru Shigeta, M. Inoue et al. · Human Reproduction · 1996 · 48 citations

Oocyte, Infertility, Andrology +15

Aging-related Changes in <i>In Vitro</i>-matured Bovine Oocytes: Oxidative Stress, Mitochondrial Activity and ATP Content After Nuclear Maturation

Keisuke Koyama, Sung-Sik Kang, Weiping Huang et al. · Journal of Reproduction and Development · 2014 · 47 citations · Full text

Oocyte, Aging, Fertility +22

Effect of aging of recipient oocytes on the development of bovine nuclear transfer embryos in vitro

Hiroshi Takano, Keisuke Koyama, Chiaki KOZAI et al. · Theriogenology · 1993 · 31 citations

Oocyte, Animal Reproduction, Theriogenology +9

Addition of D-penicillamine, hypotaurine, and epinephrine (PHE) mixture to IVF medium maintains motility and longevity of bovine sperm and enhances stable production of blastocysts <i>in vitro</i>

Sung-Sik Kang, Keisuke Koyama, Weiping Huang et al. · Journal of Reproduction and Development · 2014 · 29 citations · Full text

Enhanced 15-Lipoxygenase 1 Production is Related to Periostin Expression and Eosinophil Recruitment in Eosinophilic Chronic Rhinosinusitis

Yoshimasa Imoto, Tetsuji Takabayashi, Masafumi Sakashita et al. · Biomolecules · 2020 · 29 citations · Full text