نتایج جستجو برای: premature aging

تعداد نتایج: 161300  

2013
Takayuki Mito Yoshiaki Kikkawa Akinori Shimizu Osamu Hashizume Shun Katada Hirotake Imanishi Azusa Ota Yukina Kato Kazuto Nakada Jun-Ichi Hayashi

Mitochondrial DNA (mtDNA) mutator mice are proposed to express premature aging phenotypes including kyphosis and hair loss (alopecia) due to their carrying a nuclear-encoded mtDNA polymerase with a defective proofreading function, which causes accelerated accumulation of random mutations in mtDNA, resulting in expression of respiration defects. On the contrary, transmitochondrial mito-miceΔ car...

Journal: :Current Biology 2002
Scott D Pletcher Michael P.H Stumpf

Mutations in the gene Klotho lead to premature ageing in mice. Recent work on human genetic variation has identified an association between a particular allele of Klotho and human lifespan. A harbinger of things to come, this work illustrates the power and growth potential for association studies of human ageing.

Journal: :Science 2003
Diego H Castrillon Lili Miao Ramya Kollipara James W Horner Ronald A DePinho

Foxo transcription factors have been implicated in diverse biological processes, including metabolism, cellular stress responses, and aging. Here, we show that Foxo3a-/- female mice exhibit a distinctive ovarian phenotype of global follicular activation leading to oocyte death, early depletion of functional ovarian follicles, and secondary infertility. Foxo3a thus functions at the earliest stag...

Journal: :Proceedings of the National Academy of Sciences 2005

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