[extropy-chat] Polly "Charlie"- Churchill's parrot
Extropian Agroforestry Ventures Inc.
megao at sasktel.net
Thu Jan 22 01:07:53 UTC 2004
Winston Churchill died in 1965. his purported Potty mouthed "F***k the
Nazies" parrot is still alive and well at 104 or so.
With parrots able to live to 225 I don't remember a great deal of work
being done to
determine what makes this so, how it differs from similar birds and
humans.
1: J Gerontol A Biol Sci Med Sci. 2001 Nov;
56(11): B468-74.
Exceptional cellular resistance to oxidative
damage in
long-lived birds requires active gene expression.
Ogburn CE, Carlberg K, Ottinger MA, Holmes DJ,
Martin GM,
Austad SN.
Department of Pathology, University of
Washington, Seattle, USA.
Previous studies indicated that renal tubular
epithelial cells from some
long-lived avian species exhibit robust and/or
unique protective
mechanisms against oxidative stress relative to
murine cells. Here we
extend these studies to investigate the response
of primary embryonic
fibroblast-like cells to oxidative challenge in
long- and short-lived avian
species (budgerigar, Melopsittacus undulatus,
longevity up to 20 years,
vs Japanese quail, Coturnix coturnix japonica,
longevity up to 5 years)
and short- and long-lived mammalian species
(house mouse, Mus
musculus, longevity up to 4 years vs humans, Homo
sapiens, longevity
up to 122 years). Under the conditions of our
assay, the
oxidative-damage resistance phenotype appears to
be associated with
exceptional longevity in avian species, but not
in mammals.
Furthermore, the extreme oxidative damage
resistance phenotype
observed in a long-lived bird requires active
gene transcription and
translation, suggesting that specific gene
products may have evolved in
long-lived birds to facilitate resistance to
oxidative stress.
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