In article <MPG.12fa292d9a0d631298973c at news.onlynews.com>,
Randall Parker <rgparker at west.net> wrote:
> Doug,
>> Simple dumb question: Is rooibos tea something that is sold in
stores? I
> never heard of it.
>> I do like the CNS protection report though.
>
And I wonder who sponsored the study. A search on google turned up 603
web sites. Here's one with a little history:
http://www.wimall.com/friend/indexwf.html
The plant is native to South Africa.
You can order it on line at:
http://www.savannahimports.com/tea.htm
It probably is beneficial, but I doubt if it's anything very dramatic.
> In <86ic5b$pu4$2 at sylvester.vcn.bc.ca>, the exalted oberon at vcn.bc.caDoug
> Skrecky opined:
> > Subject: possible biostasis with rooibos tea?
> > From: Doug Skrecky <oberon at vcn.bc.ca>
> > Newsgroups: sci.life-extension, bionet.molbio.ageing
> >
> > Citations: 1-2
> > <1>
> > Authors
> > Lamosova D. Jurani M. Greksak M. Nakano M. Vanekova M.
> > Institution
> > Institute of Animal Biochemistry and Genetics, Slovak Academy of
Sciences,
> > Ivanka pri Dunaji, Slovakia. LAMOSOVA at UBGZ.SAVBA.SK> > Title
> > Effect of Rooibos tea (Aspalathus linearis) on chick
> > skeletal muscle cell growth in culture.
> > Source
> > Comparative Biochemistry & Physiology. Part C Pharmacology,
Toxicology,
> > Endocrinology. 116(1):39-45, 1997 Jan.
> > Abstract
> > Rooibos tea (RT) extract contains natural antioxidants and
> > scavenging agents. We investigated the effects of different
concentrations of
> > RT extract in medium on growth and changes of growth parameters
of cultured
> > chick embryonic skeletal muscle cells. Presence of 2, 10 and 100%
of RT
> > extract in the culture of primary cells significantly inhibited
cell
> > proliferation. The inhibition of cell growth reflected on
decreased DNA, RNA
> > and protein contents in primary cell culture and fibroblasts and
myoblasts.
> > The ability of the primary cells, fibroblasts and myoblasts to
synthesize DNA
> > and protein in the presence of RT extract, measured as an amount
of
> > [3H]thymidine and [3H]leucine incorporated into DNA and de novo
synthesized
> > protein, corresponded with decreasing DNA and protein contents in
all three
> > cell types. The inhibition effect of RT rose with increasing
concentration of
> > the tea extract in the culture medium. Ornithine decarboxylase
activity was
> > significantly affected only by 100% RT extract in every examined
cell types.
> > These results suggest that the inhibitory effect of RT extract on
the growth
> > of primary cells, fibroblasts and myoblasts is due to the potent
scavenging
> > activity of the RT extract.
> >
> > <2>
> > Authors
> > Inanami O. Asanuma T. Inukai N. Jin T. Shimokawa S. Kasai
N. Nakano M.
> > Sato F. Kuwabara M.
> > Institution
> > Faculty of Agriculture, Iwate University, Morioka, Japan.
> > Title
> > The suppression of age-related accumulation of lipid peroxides in
rat brain
> > by administration of Rooibos tea (Aspalathus linearis).
> > Source
> > Neuroscience Letters. 196(1-2):85-8, 1995 Aug 18.
> > Abstract
> > The protective effects of Rooibos tea (RT), Aspalathus
> > linearis, against damage to the central nervous system (CNS)
accompanying
> > aging were examined by both the thiobarbituric acid reaction
(TBA) and
> > magnetic resonance imaging (MRI) methods in brains of chronically
RT-treated
> > rats. Ad libitum administration of RT was begun with 3-month-old
Wistar
> > female rats and continued for 21 months. The contents of TBA
reactive
> > substances (TBARS) in the frontal cortex, occipital cortex,
hippocampus and
> > cerebellum in 24-month-old rats after administration with water
were
> > significantly higher than those in young rats (5 weeks old).
However, no
> > significant increase of TBARS was observed in RT-administered
aged rats. When
> > MR images of the brains of 24-month-old rats with and without RT
as well as
> > 5-week-old rats were taken, a decrease of the signal intensity
was observed
> > in the cerebral cortex, hippocampus and cerebellum in MR images
of aged rats
> > without RT, whereas little change of the signal intensity was
observed in MR
> > images of the same regions of 24-month-old rats treated with RT,
whose images
> > were similar to those of young rats. These observations suggested
that (1)
> > the age-related accumulation of lipid peroxides in the brain was
closely
> > related to the morphological changes observed by MRI, and (2)
chronic
> > RT-administration prevented age-related accumulation of lipid
peroxides in
> > several regions of rat brain.
> >
> >
> >
>
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