| differential in vitro anti-hiv activity of natural lignans. | two naturally occurring lignanolides, isolated from the tropical climbing shrub ipomoea cairica, (-)-arctigenin and (-)-trachelogenin, were found to inhibit strongly replication of human immunodeficiency virus type 1 (hiv-1; strain htlv-iii b) in vitro. at a concentration of 0.5 microm, (-)-arctigenin and (-)-trachelogenin inhibited the expression of hiv-1 proteins p17 and p24 by 80-90% and 60-70%, respectively. the reverse transcriptase activity in the culture fluids was reduced by 80-90% when ... | 1990 | 1965681 |
| colour cues: effects of ipomoea plant extract on culex quinquefasciatus say gravid females in choosing oviposition site. | the interaction between plants and insects is dynamic, and may favour either the plant or the insect. plant chemicals are deeply implicated in this relationship and influence insect behaviour. here, we investigated the oviposition behaviour response of culex quinquefasciatus mosquitoes based on the colour cues produced by ipomoea cairica leaves extract. in this study, two sets of oviposition choice experiments were conducted: (1) single solution in a cage; and (2) multiple concentration solution ... | 0 | 27688853 |
| evaluation of sublethal effects of ipomoea cairica linn. extract on life history traits of dengue vectors. | plant derived insecticides have considerable potential for mosquito control because these products are safer than conventional insecticides. this study aimed to investigate sublethal activities of ipomoea carica or railway creeper crude acethonilic extract against life history trait of dengue vectors, aedes albopictus and aedes aegypti. the late third instar larvae of ae. albopictus and ae. aegypti were exposed to a sublethal dose at lc50 and larvae that survived were further cultured. overall, ... | 2016 | 27253746 |
| oviposition deterring and oviciding potentials of ipomoea cairica l. leaf extract against dengue vectors. | bioprospecting of plant-based insecticides for vector control has become an area of interest within the last two decades. due to drawbacks of chemical insecticides, phytochemicals of plant origin with mosquito control potential are being utilized as alternative sources in integrated vector control. in this regard, the present study aimed to investigate oviposition deterring and oviciding potentials of ipomoea cairica (l.) (family: convolvulaceae) crude leaf extract against dengue vectors, aedes ... | 2014 | 25382472 |
| larvicidal efficacy of different plant parts of railway creeper, ipomoea cairica extract against dengue vector mosquitoes, aedes albopictus (diptera: culicidae) and aedes aegypti (diptera: culicidae). | natural insecticides from plant origin against mosquito vectors have been the main concern for research due to their high level of eco-safety. control of mosquitoes in their larval stages are an ideal method since aedes larvae are aquatic, thus it is easier to deal with them in this habitat. the present study was specifically conducted to explore the larvicidal efficacy of different plant parts of ipomoea cairica (l.) or railway creeper crude extract obtained using two different solvents; methan ... | 2014 | 25368088 |
| mosquito larvicidal properties of essential oil of an indigenous plant, ipomoea cairica linn. | laboratory bioassay of the essential oil extracted from an indigenous plant, ipomoea cairica, commonly known as 'railway creeper', was carried out against the larvae of four vector species of mosquitoes in order to evaluate its mosquito larvicidal effect. bioassay test revealed that the essential oil of the plant possess remarkable larvicidal properties as it could induce 100% mortality in the larvae of culex tritaeniorhynchus (100 ppm), aedes aegypti (120 ppm), anopheles stephensi (120 ppm), an ... | 2004 | 15329451 |
| larvicidal activity of ipomoea cairica (l.) sweet and ageratina adenophora (spreng.) king & h. rob. plant extracts against arboviral and filarial vector, culex quinquefasciatus say (diptera: culicidae). | culex quinquefasciatus say, an arboviral and filarial vector, is one of the most widespread mosquitoes in the world, and insecticide-resistant populations have been reported worldwide. due to the emergence of resistance in c. quinquefasciatus plant based products or plant extracts may be alternative sources in integrated vector management program. the present study was carried out to establish the larvicidal activities of crude solvent extracts prepared from flowers and leaves of ipomoea cairica ... | 2014 | 24681043 |
| repellent activity of selected plant essential oils against the malarial fever mosquito anopheles stephensi. | in recent years, use of environment friendly and biodegradable natural insecticides of plant origin have received renewed attention as agents for vector control. in this study, essential oils extracted by steam distillation from leaves of five plant species centella asiatica l., ipomoea cairica l., momordica charantia l., psidium guajava l. and tridax procumbens l. were evaluated for their topical repellency effects against malarial vector anopheles stephensi in mosquito cages. all essential oil ... | 2007 | 18209711 |
| assessment of residual bio-efficacy and persistence of ipomoea cairica plant extract against culex quinquefasciatus say mosquito. | specification on residual action of a possible alternative insecticide derived from plant materials is important to determine minimum interval time between applications and the environmental persistence of the biopesticides. the objective of this study is to evaluate crude acethonilic extract of ipomoea cairica leaves for its residual and persistence effects against culex quinquefasciatus larvae. wild strain of cx. quinquefasciatus larvae were used for the purpose of the study. two test designs, ... | 2014 | 25382473 |
| antinociceptive effect from ipomoea cairica extract. | ipomoea cairica l. sweet (convolvulaceae) is used in brazilian folk medicine for the treatment of rheumatism and inflammations. ipomoea cairica ethanolic extract (100, 300, 1000 and 3000 mg/kg; per os) induced dose-dependent reduction of response in the formalin test inflammatory phase in mice. the same dose range did not modify neurogenic pain in formalin test, tail-flick reflex latency, carrageenan-induced paw edema, and rota-rod test motor performance. from the bio-active fraction 3,5-di-o-ca ... | 2006 | 16307856 |
| snakebites and ethnobotany in the northwest region of colombia. part iii: neutralization of the haemorrhagic effect of bothrops atrox venom. | thirty-one of 75 extracts of plants used by traditional healers for snakebites, had moderate or high neutralizing ability against the haemorrhagic effect of bothrops atrox venom from antioquia and chocó, north-western colombia. after preincubation of several doses of every extract (7.8-4000 microg/mouse) with six minimum haemorrhagic doses (10 microg) of venom, 12 of them demonstrated 100% neutralizing capacity when the mixture was i.d. injected into mice (18-20 g). these were the stem barks of ... | 2000 | 11025161 |