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  • Monira Pervin, Keiko Unno, +10 authors Yoriyuki Nakamura
  • Medicine, Biology
  • Biochemistry and biophysics reports
  • 2017 (First Publication: 5 January 2017)
  • Background The consumption of green tea catechins (GTCs) suppresses age-related cognitive dysfunction in mice. GTCs are composed of several catechins, of which epigallocatechin gallate (EGCG) is theExpand
  • Keiko Unno, Naoki Tanida, Naoto Ishii, Hiroyuki Yamamoto, Hiroshi Yamada
  • Psychology, Medicine
  • Pharmacology Biochemistry and Behavior
  • 2013 (First Publication: 1 October 2013)
  • PURPOSE Theanine, an amino acid in tea, has significant anti-stress effect on experimental animals under psychosocial stress. Anti-stress effect of theanine on humans was evaluated in 5th-yearExpand
  • Keiko Unno, Monira Pervin, +6 authors Yoriyuki Nakamura
  • Medicine, Chemistry
  • Molecular nutrition & food research
  • 2017 (First Publication: 1 December 2017)
  • SCOPE To understand the mechanism by which green tea lowers the risk of dementia, focus was placed on the metabolites of epigallocatechin gallate (EGCG), the most abundant catechin in green tea. MuchExpand
  • Hiroyuki Yamamoto, Tomohiro Yamane, +5 authors Atsushi Takeda
  • Biology, Medicine
  • Scientific reports
  • 2015 (First Publication: 29 September 2015)
  • The production of melanin is regulated by α-melanocyte-stimulating hormone (α-MSH), which is produced from proopiomelanocortin (POMC). Keratinocytes release POMC along with lower levels of α-MSH andExpand
  • Takahiro Kishido, Keiko Unno, +6 authors Minoru Hoshino
  • Medicine, Biology
  • Biogerontology
  • 2007 (First Publication: 2 July 2007)
  • The accumulation of oxidative damage is believed to contribute to senescence. We have previously found that the consumption of green tea catechins (GT-catechin), which are potent antioxidants,Expand
  • K. Unno, Keisuke Fujitani, +7 authors M. Hoshino
  • Medicine, Chemistry
  • Free radical research
  • 2011 (First Publication: 7 July 2011)
  • Abstract To evaluate the psychosocial effect on lifespan and cognitive function, this study investigated the effect of confrontational housing on mice because conflict among male mice is aExpand
  • Keiko Unno, Minoru Sugiura, +8 authors Minoru Hoshino
  • Medicine, Biology
  • Biological & pharmaceutical bulletin
  • 2011 (First Publication: 1 March 2011)
  • Increased oxidative stress is known to accelerate age-related pathologies. Beta-cryptoxanthin (β-CRX, (3R)-β,β-caroten-3-ol) is a potent antioxidant that is highly rich in Satsuma mandarin orangeExpand