[Quote: "it may be possible for them to outlive their risk of
dying from their cancer". With a PSA doubling time increased from
15 to 54 months with 8 ounces (237 ml) of POM pomegranate juice/day,
Alan Pantuck (below) might be forgiven for being this optimistic. However
since pomegranate also strongly inhibits atherosclerosis (see below),
prostate cancer may still remain a lifespan limiting factor, if
cardiovascular disease is delayed long enough. With several proven
longevity promoting actions, pomegranate is possibly the single most
desirable food for any life extensionist. Doctors have touted the health
benefits of fruits and vegetables for years. However not all fruits and
vegetables are equal in this regard, and in particular, thus far, no other
fruit or vegetable has been proven in human intervention trials to be as
promising as pomegranate.]
Pomegranate Juice Helps Keep PSA Levels Stable In Men With Prostate
Cancer
Drinking an eight ounce glass of pomegranate juice daily increased
by nearly four times the period during which PSA levels in men
treated for prostate cancer remained stable, a three-year UCLA study
has found.
The study involved 50 men who had undergone surgery or radiation but
quickly experienced increases in prostate-specific antigen or PSA,
a biomarker that indicates the presence of cancer. UCLA researchers
measured "doubling time," how long it takes for PSA levels to double,
a signal that the cancer is progressing, said Dr. Allan Pantuck, an
associate professor of urology, a Jonsson Cancer Center researcher
and lead author of the study.
Doubling time is crucial in prostate cancer, Pantuck said, because
patients who have short doubling times are more likely to die from
their cancer. The average doubling time is about 15 months. In the
UCLA study, Pantuck and his team observed increases in doubling
times from 15 months to 54 months, an almost four-fold increase.
"That's a big increase. I was surprised when I saw such an
improvement in PSA numbers," Pantuck said. "In older men 65 to 70
who have been treated for prostate cancer, we can give them
pomegranate juice and it may be possible for them to outlive their
risk of dying from their cancer. We're hoping we may be able to
prevent or delay the need for other therapies usually used in this
population such as hormone treatment or chemotherapy, both of which
bring with them harmful side effects."
The study appears in the July 1 issue of Clinical Cancer Research,
the peer-reviewed journal of the American Association of Cancer
Research.
"This is not a cure, but we may be able to change the way prostate
cancer grows," Pantuck said. "We don't know yet the specific factors
behind this response - that's our next step in this research. We
want to find out what cell signaling pathways might be affected,
what is happening to keep PSA levels stable."
Pomegranate juice is known to have anti-inflammatory effects and
high levels of anti-oxidants, which are believed to protect the body
from free-radical damage. It also contains poly-phenols, natural
antioxidant compounds found in green tea, as well as isoflavones
commonly found in soy, and ellagic acid, which is believed to play
a role in cancer cell death.
"There are many substances in pomegranate juice that may be
prompting this response," Pantuck said. "We don't know if it's
one magic bullet or the combination of everything we know is in
this juice. My guess is that it's probably a combination of
elements, rather than a single component."
The levels of PSA in men immediately following treatement should
be undetectable, Pantuck said. If PSA can be detected, it's an
indication of an aggressive cancer that is likely to progress.
The men in Pantuck's study all had detectable PSA following
treatment. Of the 50 men enrolled, more than 80 percent
experienced improvement in doubling times.
Conventional treatment for men with recurrent prostate cancer
includes hormonal therapy, a chemical castration which removes
testosterone from the system. Men treated with hormonal therapy
can experience hot flashes, osteoporosis, fatigue, depression,
muscle wasting, loss of libido and erectile dysfunction. If
drinking pomegranate juice can delay or prevent the need for
hormonal therapy, patients would experience a better quality of
life for a longer time, Pantuck said.
The patients in Pantuck's study experienced no side effects and
none of the participants had cancers that metastasized during
the study.
Pantuck, along with UCLA colleagues including Dr. Arie Belldegrun,
professor and chief of urologic oncology, and Dr. David Heber,
professor and director of the Center for Human Nutrition, first
began research on pomegranate juice in prostate cancer about six
years ago, conducting preclinical research in cell cultures and
in animals. Those studies showed pomegranate juice slowed the
growth of prostate cancer, Pantuck said.
The data was impressive enough to test pomegranate juice in
clinical trials, Pantuck said. To confirm their findings, a
larger Phase III study, headed up by UCLA, will be conducted at
ten centers across the county. UCLA is the only Southern
California center involved in the study. For more information on
the Phase III trial, call (310) 825-5538.
Pantuck said he has men on the study more than three years out who
are not being treated for prostate cancer other than drinking
pomegranate juice and their PSA levels continue to be suppressed.
"The juice seems to be working," he said.
The study, performed at the Clark Urology Center, was funded by
the Stewart and Lynda Resnick Trust. The Resnicks own POM
Wonderful, which provided the juice from the Wonderful variety of
pomegranate for the study.
Clinical Cancer Research Jul 1, 2006; 12 (13)
Phase II Study of Pomegranate Juice for Men with Rising PSA
following Surgery or Radiation for Prostate Cancer
[Below, 50 ml of a homemade pomegranate juice was used.]
Clin Nutr. 2004 Jun;23(3):423-33.
Pomegranate juice consumption for 3 years by patients with carotid
artery stenosis reduces common carotid intima-media thickness,
blood pressure and LDL oxidation.
Dietary supplementation with polyphenolic antioxidants to animals
was shown to be associated with inhibition of LDL oxidation and
macrophage foam cell formation, and attenuation of atherosclerosis
development. We investigated the effects of pomegranate juice (PJ,
which contains potent tannins and anthocyanins) consumption by
atherosclerotic patients with carotid artery stenosis (CAS) on the
progression of carotid lesions and changes in oxidative stress and
blood pressure. Ten patients were supplemented with PJ for 1 year
and five of them continued for up to 3 years. Blood samples were
collected before treatment and during PJ consumption. In the
control group that did not consume PJ, common carotid intima-media
thickness (IMT) increased by 9% during 1 year, whereas, PJ
consumption resulted in a significant IMT reduction, by up to 30%,
after 1 year. The patients' serum paraoxonase 1 (PON 1) activity
was increased by 83%, whereas serum LDL basal oxidative state and
LDL susceptibility to copper ion-induced oxidation were both
significantly reduced, by 90% and 59%, respectively, after 12
months of PJ consumption, compared to values obtained before PJ
consumption. Furthermore, serum levels of antibodies against
oxidized LDL were decreased by 19%, and in parallel serum total
antioxidant status (TAS) was increased by 130% after 1 year of PJ
consumption. Systolic blood pressure was reduced after 1 year of
PJ consumption by 21% and was not further reduced along 3 years of
PJ consumption. For all studied parameters, the maximal effects
were observed after 1 year of PJ consumption. Further consumption
of PJ, for up to 3 years, had no additional beneficial effects on
IMT and serum PON1 activity, whereas serum lipid peroxidation was
further reduced by up to 16% after 3 years of PJ consumption. The
results of the present study thus suggest that PJ consumption by
patients with CAS decreases carotid IMT and systolic blood
pressure and these effects could be related to the potent
antioxidant characteristics of PJ polyphenols.
Juhana Harju - 04 Jul 2006 06:02 GMT
: [Below, 50 ml of a homemade pomegranate juice was used.]
Hi,
To my knowledge it was pomegranate concentrate equating 250 ml fresh juice.
I have read the full study.
: Clin Nutr. 2004 Jun;23(3):423-33.
: Pomegranate juice consumption for 3 years by patients with carotid
: artery stenosis reduces common carotid intima-media thickness,
: blood pressure and LDL oxidation.

Signature
Juhana
Doug Skrecky - 05 Jul 2006 13:25 GMT
In sci.life-extension Juhana Harju <shantigiriorama@gmail.com> wrote:
> : [Below, 50 ml of a homemade pomegranate juice was used.]
> Hi,
> To my knowledge it was pomegranate concentrate equating 250 ml fresh juice.
> I have read the full study.
You might be right. However 250 ml of fresh juice is not mentioned in the
report, and the reference to 50 ml is to pomegranate juice, and not to any
concentrate. A literal reading of the report implies that it was 10 ml of
concentrate that was used, which was diluted 5-fold to produce 50 ml of
juice. However even if 250 ml was used, this implies that pomegranate is
almost unbelievably potent at reducing IMT. Even statin drugs can only
slow the increase in IMT. They can not halt it, much less reduce it. If
you are correct, then the authors of the study made a mistake in not
refering to the 50 ml as a concentrate, and the editors of the medical
journal missed this mistake. All this is possible, as such mistakes have
been made in the past, as the presence of erratums in journals attests.
Juhana Harju - 05 Jul 2006 16:38 GMT
: In sci.life-extension Juhana Harju <shantigiriorama@gmail.com> wrote:
::: [Below, 50 ml of a homemade pomegranate juice was used.]
[quoted text clipped - 7 lines]
: it was 10 ml of concentrate that was used, which was diluted 5-fold
: to produce 50 ml of juice.
The full study states: "Ten patients consumed 50 ml of PJ per day (which
contain 1.5 mmoles of total polyphenols) for a period of 1 year, and five
out of them agreed to continue for up to 3 years. This PJ concentration was
chosen based on our previous study on the beneficial PJ properties in
healthy volunteers." [...] "Each day along the study period, the
concentrated PJ was diluted 1:5 (v:v) with water in order to obtain a single
strength PJ."
I have also read from some popular sources which have stated more clearly
that the amount of concentrate equated 250 ml fresh juice.
This is the full study:
http://www.pomwonderful.com/pdf/clinical_nutrition.pdf
: However even if 250 ml was used, this
: implies that pomegranate is almost unbelievably potent at reducing
: IMT.
I agree. It is amazing.
: Even statin drugs can only slow the increase in IMT. They can
: not halt it, much less reduce it. If you are correct, then the
: authors of the study made a mistake in not refering to the 50 ml as a
: concentrate, and the editors of the medical journal missed this
: mistake. All this is possible, as such mistakes have been made in the
: past, as the presence of erratums in journals attests.

Signature
Juhana
Matti Narkia - 05 Jul 2006 17:25 GMT
>: In sci.life-extension Juhana Harju <shantigiriorama@gmail.com> wrote:
>::: [Below, 50 ml of a homemade pomegranate juice was used.]
[quoted text clipped - 18 lines]
>I have also read from some popular sources which have stated more clearly
>that the amount of concentrate equated 250 ml fresh juice.
Such as this?
Pomegranate Juice Improves Carotid Artery Health and Lowers Blood
Pressure in Patients with Carotid Artery Stenosis
<http://www.herbalgram.org/herbalgram/articleview.asp?a=2771>
"In an open label, parallel group clinical trial, 19 patients (5
women and 14 men, aged 65-75 years) with severe carotid artery
stenosis (CAS) were selected to receive 50 ml concentrated
pomegranate juice (PJ) containing 1.5 mmoles of polyphenols per
day, the equivalent of 8.3 oz (250 ml) of 100% juice (treatment
group; n = 10) or no PJ (control group; n = 9). ..."

Signature
Matti Narkia
Juhana Harju - 05 Jul 2006 17:38 GMT
::: In sci.life-extension Juhana Harju <shantigiriorama@gmail.com>
::: wrote:
[quoted text clipped - 32 lines]
: day, the equivalent of 8.3 oz (250 ml) of 100% juice (treatment
: group; n = 10) or no PJ (control group; n = 9). ..."
Exactly. Thanks.

Signature
Juhana
Dr. Zarkov - 05 Jul 2006 20:55 GMT
> : In sci.life-extension Juhana Harju <shantigiriorama@gmail.com> wrote:
> ::: [Below, 50 ml of a homemade pomegranate juice was used.]
[quoted text clipped - 17 lines]
> I have also read from some popular sources which have stated more clearly
> that the amount of concentrate equated 250 ml fresh juice.
I don't see how you can tell from those data how that concentration
relates to fresh juice--unless you're calculating it from other data on
known concentrations of polyphenols.
> This is the full study:
> http://www.pomwonderful.com/pdf/clinical_nutrition.pdf
[quoted text clipped - 11 lines]
> : mistake. All this is possible, as such mistakes have been made in the
> : past, as the presence of erratums in journals attests.
Juhana Harju - 05 Jul 2006 21:46 GMT
: I don't see how you can tell from those data how that concentration
: relates to fresh juice--unless you're calculating it from other data
: on known concentrations of polyphenols.
Some further has been provided in this thread.

Signature
Juhana
Juhana Harju - 05 Jul 2006 21:49 GMT
:: I don't see how you can tell from those data how that concentration
:: relates to fresh juice--unless you're calculating it from other data
:: on known concentrations of polyphenols.
Some further evidence has been provided in this thread.

Signature
Juhana
J - 05 Jul 2006 16:45 GMT
> In sci.life-extension Juhana Harju <shantigiriorama@gmail.com> wrote:
> > : [Below, 50 ml of a homemade pomegranate juice was used.]
[quoted text clipped - 13 lines]
> journal missed this mistake. All this is possible, as such mistakes have
> been made in the past, as the presence of erratums in journals attests.
The Science Daily article fails to mention some data about the UCLA
study, the most important of which was the exclusion of any
participants who had a Gleason score greater than 7 before inital
surgery or radiation.
Take it to the prostate cancer newsgroup.
Someone else is spamming the juice theory there and it's got to be a specific
juice. :p
J
Emily - 04 Jul 2006 14:06 GMT
oberonSPAMBLOCK@vcn.bc.ca said...
> With several proven
> longevity promoting actions, pomegranate is possibly the single most
> desirable food for any life extensionist.
About time someone found a use for it...