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1.
Asian Pacific Journal of Tropical Medicine ; (12): 595-601, 2013.
Article Dans Anglais | WPRIM | ID: wpr-819996

Résumé

OBJECTIVE@#To investigate new scolicidal agent from natural resources to cope with the side effects associated with synthetic drugs in Echinococcosis.@*METHODS@#The scolicidal potential of methanolic fruit powder extract (10 and 20 mg/mL) of Mallotus philippinensis (M. philippinensis) was investigated. Viability of protoscoleces was confirmed by trypan blue exclusion method, where mortality was observed at concentration of 10 and 20 mg/mL in 60 min treatment against Echinococcus granulosus (E. granulosus), under in-vitro conditions with reference to the known standard drug Praziquantel®.@*RESULTS@#At concentration 10 and 20 mg/mL, the mortality rate was observed 97% and 99% respectively for 60 min treatment; while up to 93% mortality was observed with 20 mg/mL for only 10 min treatment. The concentration above 20 mg/mL for above 2 h showed 100% mortality, irrespective of further incubation.@*CONCLUSIONS@#As compared with the standard anti-parasitic drug Praziquantel our extract has significant scolicidal activity with almost no associated side effects.


Sujets)
Animaux , Anthelminthiques , Pharmacologie , Dosage biologique , Echinococcus granulosus , Fruit , Chimie , Mallotus (plante) , Chimie , Extraits de plantes , Pharmacologie , Praziquantel , Pharmacologie , Analyse de survie
2.
Singapore medical journal ; : 47-53, 2008.
Article Dans Anglais | WPRIM | ID: wpr-236599

Résumé

<p><b>INTRODUCTION</b>We aim to study and elucidate the safety profile of the antiepileptic doses of gabapentin during pregnancy, and to evaluate gabapentin-induced murine fetotoxicity at different dose levels.</p><p><b>METHODS</b>A total of 60 pregnant mice, divided into 12 groups of five mice each, were exposed to gabapentin in four different doses of 0 (control), 113, 226, or 452 mg/kg body weight per day, at three different gestational stages including early gestation (1-6 days), mid-gestation (7-12 days), and late gestation (13-17 days). The pregnant mice were euthanized on day 18 of gestation, and foetuses were examined for teratogenic manifestations. Their brains were dissected and examined for gross changes, malformations, histological changes, and quantitative protein estimation.</p><p><b>RESULTS</b>Foetal resorptions were observed in all treated groups with gabapentin administration at early gestation (1-6 days), and mid-gestation (7-12 days). On the other hand, growth retardation along with stunting in size of live foetuses were observed in all the mid-gestation (7-12 days), and late gestation (13-17 days) treated groups. Various gross malformations were observed with all the three doses (113, 226, and 452 mg/kg body weight per day) when gabapentin was administered at mid-gestation (7-12 days). The same trends were confirmed by gross and microscopic examination of brains along with quantitative protein estimation.</p><p><b>CONCLUSION</b>Gabapentin should not be prescribed during pregnancy, as no therapeutic dose of gabapentin is safe during this period as far as the foetal well-being is concerned.</p>


Sujets)
Animaux , Femelle , Souris , Grossesse , Malformations dues aux médicaments et aux drogues , Amines , Anticonvulsivants , Poids , Malformations , Acides cyclohexanecarboxyliques , Relation dose-effet des médicaments , Souris de lignée ICR , Modèles chimiques , Gestation animale , Tératogènes , Acide gamma-amino-butyrique
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