Saw
Palmetto Berries come from a small palm tree, which grows in the
southeastern US. It has been used by Native Americans and researched
in Europe and Japan, where it is widely consumed
STUDIES
for SAW PLAMETTO:
Benign
Prostatic Hyperplasia/ Lower Urinary Tract Symptoms: Symptomatic
benign prostatic hyperplasia (BPH) and lower urinary tract symptoms
(LUTS) secondary to BPH, are common medical conditions in older
men. Forty percent of men 70 years or older have lower urinary tract
symptoms consistent with BPH. Treatment for BPH is to relieve urgency,
frequency, nocturia, and obstructive symptoms. Treatment options
include surgical procedures, pharmaceutical and phytotherapeutic
preparations or lifestyle modification. Saw palmetto is a dietary
supplement widely used to treat the urinary symptoms of BPH.
- A
study was done on 44 men aged 45 to 80 with symptomatic BPH.
Each patient was given either an herbal blend of 106 mg of saw
palmetto berry lipoidal extract and other herbs (nettle root,
pumpkin seed, lemon bioflavonoid extract, vitamin A as beta-carotene
and other minor ingredients) or placebo three times a day for
6 months. Saw palmetto herbal blend for symptomatic BPH resulted
in the contraction of prostatic epithelial tissues, possibly
via a non- hormonal mechanism. No adverse effects were observed.
Saw palmetto herbal blend may be a safe and desirable alternative
for men with moderately symptomatic BPH.
- A
review analyzed 18 randomized controlled trials involving 2,939
men. The mean study duration was 9 weeks (range 4-48 weeks)
and the most frequent reported dose was 160 mg of saw palmetto
2 times a day, although studies used different doses and preparations
of saw palmetto in combination with other phytotherapeutic compounds.
The review suggested that saw palmetto improved urologic symptoms
and flow measures. When saw palmetto was compared to finasteride
(5 a-reductase inhibitor), it produced similar improvement in
urinary tract symptoms and urinary flow. In addition, there
were fewer adverse treatment events and cost for treatment was
less. Overall, further research is needed to evaluate the long-term
effectiveness and safety of saw palmetto and to determine its
ability to prevent complications from BPH.
- Fifty
men with previously untreated lower urinary tract symptoms (LUTS)
were treated with 160 mg of saw palmetto two times a day for
6 months. Mean Interated Prostate Symptom Score improved from
19.5 ± 5.5 to 12.5 ± 7.0 among the 46 men who
completed the study. An improvement in symptom score of 50%
or greater after treatment with saw palmetto for 2, 4, and 6
months was noted in 21%, 30% and 46% of patients, respectively.
There was no significant change in the measures of peak urinary
flow. Overall, saw palmetto was well-tolerated and significantly
improved lower urinary tract symptoms in men with BPH. Placebo-controlled
trials are needed to further evaluate saw palmetto's effectiveness.
- A
randomized, double blind, placebo controlled trial was conducted
to look at effect of saw palmetto in men with LUTS. Men, 45
years or older, with an Interated Prostate System Score of >
8 were entered. Eighty-five men were randomized to receive either
saw palmetto or placebo for 6 months. Mean systems were decreased
from 16.7 to 12.3 in the saw palmetto group compared with 15.8
to 13.6 in placebo group (p=0.038). Saw palmetto led to significant
improvement in urinary systems in men with LUTS but had no measurable
effect on urinary flow rates.
Intraoperative
Hemorrhage: A case report of a 53-year old male with left
petroclavial meningioma had surgical resection of the tumor. During
the procedure, the patient had brisk bleeding that was difficult
to control. Later, it was discovered that the patient had been using
saw palmetto for benign prostate hypertrophy. The prolonged bleeding
time in this patient may have been a result of platelet dysfunction
caused by cyclooxygenase inhibition from saw palmetto.
Prostate
Cancer: Treatment for prostate cancer is hormonal or androgen-ablative
therapy which induces apoptosis in androgen-dependent prostate cancer
cells. Hormonal therapy is 70 to 80% effective, but most tumors
progress to androgen-independent tumors. These tumors are resistant
to androgen withdrawal induced apoptosis due to mutation of androgen
receptors in these cells. Human prostatic carcinoma LNCaP cell line
is the most widely used in vitro model of prostate cancer and their
growth is increased by androgen. Extract from saw palmetto, serenoa
repens, may induce a mixed type of cell death, apoptosis or necrosis
in LNCaP cells.
- Cell
viability was examined in LNCaP cells, an in vitro model for
hormonal therapy-resistant prostatic tumor. Results indicated
that exposure from serenoa repens extract resulted in of LNCaP
cell death. It was demonstrated that the extract from Serenoa
repens and myristoleic acid induces mixed cell death of apoptosis
and necrosis in LNCaP cells. These results suggest that the
extract and myristoleic acid may help develop new tools for
the treatment of prostate cancer.
- A
study used three human urological cancer cell lines, PC-3, LNCaP
and SKRC-1, to investigate the effects of the extract from serenoa
repens on tumor cell invasion. The invasive activity of PC-3
cells exposed to the extract was significantly suppressed in
a dose-dependent manner while that of LNCap and SKRC-a cell
were not altered. Urokinase-type plasminogen activator (uPA)
in PC-3 cells was more strongly suppressed by the extract as
compared to the other two cell lines. It was also found that
purified uPA activity is inhibited by the extract from Serenoa
repens in a dose-dependent manner in vitro, suggesting that
the suppression of PC-3 cell invasion by the extract is based
on an inhibition of uPA activity which is necessary for tumor
cell invasion. These data suggested that extract from serenoa
repens specifically inhibits the uPA activity and may therefore
be useful for the therapeutic treatment of prostate cancer.
| Supplement
Facts |
MG |
%DV |
| |
|
|
| Serving
Size: 2 Softgels |
|
|
| Amount
Per Serving: 160 mg. |
|
|
| Servings
per Container: 45 |
|
|
| |
|
|
| Saw
Palmetto Extract |
160
mg. |
*
|
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