Crinum asiaticum Linn plant is used in Malaysia as a rheumatic remedy and to relieve local pain. In the present study,
we examined the anti-inflammatory effects of this plant extract on carrageenan-induced hind paw oedema in mice. C.
asiaticum was serially extracted with petroleum ether, followed by chloroform and lastly, methanol. The chloroform and
methanol extracts of the plant given orally 50 mg kgy1. caused significant p-0.05; ns7. reduction in paw oedema but
the petroleum ether extract did not induce significant effect p)0.05. on paw oedema. The methanol extract was then
dissolved in water and extracted consecutively with chloroform, ethyl acetate and butanol. The chloroform fraction of
methanol extract CFME. treatment 50 mg kgy1. significantly reduced p-0.05; ns7. the acute paw oedema. This may
indicate that active anti-inflammatory compounds are present in the CFME. In an attempt to study the mechanism of action
of its anti-inflammatory activity, the effects of CFME on BK- and histamine-induced contractions were investigated in
isolated rat uterus and guinea-pig ileum preparations, respectively. It was found that CFME caused dose-dependent reduction
p-0.05; ns6. of the contractile response induced by BK and shifted the log dose–response curve of histamine to the
right. The present findings suggest that C. asiaticum possessed an anti-inflammatory activity as suggested by its use in
traditional medicine. The anti-inflammatory activity of this plant could not have been due to its anti-bradykinin activities as
CFME non-specifically inhibited BK-induced contraction. It also suggest that CFME may contain compounds. with
anti-histaminic properties. The significance of these findings is discussed. q1999 Elsevier Science B.V. All rights reserved skin-sensitizinpgo tentialso f the extracto f Crinuma siaticuma, humanc linicalt est was performeda fter
repeateedp icutaneou48s- h applicationusn dera no cclusivpea tch( RIPT). Ther epeateadn ds inglec utaneous
applicationosf Crinuma siaticuLrnin nev at.j aponicuemx tractu ndert he occlusivpea tchd id notp rovokea ny
cumulative irritation and sensitization reactions. The result showed that the extract of Crimzm asiaticum
Linnev ar.j aponicumha sa sufficienat nti-inflammatoreyf fect.T hereforeC, rinuma siaticurLni nnev ar.j aponicuree
xtractm ay be usefulf or developmenat s an ingredienti n cosmeticp roducts.
Crinum asiaticum Linn plant is used in Malaysia as a rheumatic remedy and to relieve local pain. In the present study,we examined the anti-inflammatory effects of this plant extract on carrageenan-induced hind paw oedema in mice. C.asiaticum was serially extracted with petroleum ether, followed by chloroform and lastly, methanol. The chloroform andmethanol extracts of the plant given orally 50 mg kgy1. caused significant p-0.05; ns7. reduction in paw oedema butthe petroleum ether extract did not induce significant effect p)0.05. on paw oedema. The methanol extract was thendissolved in water and extracted consecutively with chloroform, ethyl acetate and butanol. The chloroform fraction ofmethanol extract CFME. treatment 50 mg kgy1. significantly reduced p-0.05; ns7. the acute paw oedema. This mayindicate that active anti-inflammatory compounds are present in the CFME. In an attempt to study the mechanism of actionof its anti-inflammatory activity, the effects of CFME on BK- and histamine-induced contractions were investigated inisolated rat uterus and guinea-pig ileum preparations, respectively. It was found that CFME caused dose-dependent reduction p-0.05; ns6. of the contractile response induced by BK and shifted the log dose–response curve of histamine to theright. The present findings suggest that C. asiaticum possessed an anti-inflammatory activity as suggested by its use intraditional medicine. The anti-inflammatory activity of this plant could not have been due to its anti-bradykinin activities asCFME non-specifically inhibited BK-induced contraction. It also suggest that CFME may contain compounds. withanti-histaminic properties. The significance of these findings is discussed. q1999 Elsevier Science B.V. All rights reserved skin-sensitizinpgo tentialso f the extracto f Crinuma siaticuma, humanc linicalt est was performeda fterrepeateedp icutaneou48s- h applicationusn dera no cclusivpea tch( RIPT). Ther epeateadn ds inglec utaneousapplicationosf Crinuma siaticuLrnin nev at.j aponicuemx tractu ndert he occlusivpea tchd id notp rovokea nycumulative irritation and sensitization reactions. The result showed that the extract of Crimzm asiaticumLinnev ar.j aponicumha sa sufficienat nti-inflammatoreyf fect.T hereforeC, rinuma siaticurLni nnev ar.j aponicureextractm ay be usefulf or developmenat s an ingredienti n cosmeticp roducts.
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