Biomolecules (Oct 2024)

The Roles of Mitochondria in Human Being’s Life and Aging

  • Hiroko P. Indo,
  • Moragot Chatatikun,
  • Ikuo Nakanishi,
  • Ken-ichiro Matsumoto,
  • Motoki Imai,
  • Fumitaka Kawakami,
  • Makoto Kubo,
  • Hiroshi Abe,
  • Hiroshi Ichikawa,
  • Yoshikazu Yonei,
  • Hisashi J. Beppu,
  • Yukiko Minamiyama,
  • Takuro Kanekura,
  • Takafumi Ichikawa,
  • Atthaphong Phongphithakchai,
  • Lunla Udomwech,
  • Suriyan Sukati,
  • Nurdina Charong,
  • Voravuth Somsak,
  • Jitbanjong Tangpong,
  • Sachiyo Nomura,
  • Hideyuki J. Majima

DOI
https://doi.org/10.3390/biom14101317
Journal volume & issue
Vol. 14, no. 10
p. 1317

Abstract

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The universe began 13.8 billion years ago, and Earth was born 4.6 billion years ago. Early traces of life were found as soon as 4.1 billion years ago; then, ~200,000 years ago, the human being was born. The evolution of life on earth was to become individual rather than cellular life. The birth of mitochondria made this possible to be the individual life. Since then, individuals have had a limited time of life. It was 1.4 billion years ago that a bacterial cell began living inside an archaeal host cell, a form of endosymbiosis that is the development of eukaryotic cells, which contain a nucleus and other membrane-bound compartments. The bacterium started to provide its host cell with additional energy, and the interaction eventually resulted in a eukaryotic cell, with both archaeal (the host cell) and bacterial (mitochondrial) origins still having genomes. The cells survived high concentrations of oxygen producing more energy inside the cell. Further, the roles of mitochondria in human being’s life and aging will be discussed.

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