The Sexual Effectiveness of Plant Extracts
is demonstrated in scientific studies.
Scientific studies have
demonstrated the effectiveness of certain plant extracts in facilitating
penis erection.
Argentinian plant extracts with relaxant effect on the smooth muscle of
the corpus cavernosum of guinea pig.
Catedra de Farmacognosia, IQUIMEFA (UBA-CONICET),
Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Buenos
Aires, Argentina. ohnatys@ffyb.uba.ar
Extracts of different polarity from Baccharis trimera,
Haplopappus rigidus Huperzia saururus, Maytenus ilicifolia, Satureja
parvifolia and Senecio eriophyton were tested for their relaxant activity on
smooth muscle using L-phenylephrine precontracted strips of corpus
cavernosum obtained from Guinea pigs. Highly significant and dose dependent
results were obtained with the dichloromethane extracts of H. saururus (87%
of relaxation at the dose of 10 mg/ml), S. parvifolia (95% of relaxation at
2.5 mg/ml) and S. eriophyton (94% of relaxation at 5 mg/ml). Similar effects
were observed with the methanol extracts of H. saururus (88% of relaxation
at 10 mg/ml) and S. parvifolia (84% of relaxation at 10 mg/ml). These
results were comparable to those obtained with the dichloromethane and
methanol extracts of the well known Mexican species Turnera diffusa.
Moreover, the aqueous extract of H. rigidus and the aqueous and methanol
extracts of S. eriophyton were highly effective in a dose dependent manner
(more than 90% of relaxation at the dose of 10 mg/ml). Significant results,
but with a lower overall relaxant activity (about 70% of relaxation at 10
mg/ml), could also be obtained with the aqueous extract of S. parvifolia and
with the dichlormethane and methanol extracts of B. trimera and M.
ilicifolia. The positive controls with Sildenafil citrate at doses ranging
from 0.35 to 35 microg/ml yielded moderate effects (up to 46% of relaxation
at 35 microg/ml). The effects observed in the
present study seem to validate the folk medicinal use of the tested plants
and open new ways in the search for natural products with vasodilatory
effects.
PMID: 14692728 [PubMed - indexed for MEDLINE]
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