Research report
Reproduction. 2008
Oct;136(4):515-22. Epub 2008 Jul 9.
Effects of Kaempferia
parviflora extracts on reproductive parameters and spermatic blood flow in male
rats.
Chaturapanich G, Chaiyakul S, Verawatnapakul V, Pholpramool C.
Chaturapanich G, Chaiyakul S, Verawatnapakul V, Pholpramool C.
Department of Physiology,
Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
Abstract
Krachaidum (KD, Kaempferia parviflora Wall. Ex. Baker), a native plant of Southeast Asia, is traditionally used to enhance male sexual function. However, only few scientific data in support of this anecdote have been reported.
Krachaidum (KD, Kaempferia parviflora Wall. Ex. Baker), a native plant of Southeast Asia, is traditionally used to enhance male sexual function. However, only few scientific data in support of this anecdote have been reported.
The present study
investigated the effects of feeding three different extracts of KD (alcohol,
hexane, and water extracts) for 3-5 weeks on the reproductive organs, the aphrodisiac
activity, fertility, sperm motility, and blood flow to the testis of male rats.
Sexual performances (mount latency, mount frequency, ejaculatory latency,
post-ejaculatory latency) and sperm motility were assessed by a video camera
and computer-assisted sperm analysis respectively, while blood flow to the
testis was measured by a directional pulsed Doppler flowmeter.
The results showed that
all extracts of KD had virtually no effect on the reproductive organ weights
even after 5 weeks. However, administration of the alcohol extract at a dose of
70 mg/kg body weight (BW)/day for 4 weeks significantly decreased mount and
ejaculatory latencies when compared with the control. By contrast, hexane and
water extracts had no influence on any sexual behavior parameters. All types of
extracts of KD had no effect on fertility or sperm motility.
On the other hand,
alcohol extract produced a significant increase in blood flow to the testis
without affecting the heart rate and mean arterial blood pressure. In a separate
study, an acute effect of alcohol extract of KD on blood flow to the testis was
investigated. Intravenous injection of KD at doses of 10, 20, and 40 mg/kg BW
caused dose-dependent increases in blood flow to the testis.
The results indicate that
alcohol extract of KD had an aphrodisiac activity probably via a marked
increase in blood flow to the testis.
Planted : Plant in April and May.
Harvest : January.
Harvest : January.
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Phone : +66 896-95-1800
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