in vitro evaluation of inhibitory nature of extracts of 18-plant species of chhindwara against 3-keratinophilic fungi.effect of extract of 18 plant species, viz., acorus calamus, adhatoda vasica, amomum subulatum, andrographis paniculata, boerhaavia diffusa, cassia occidentalis, centella asiatica, cymbopogon citratus, hemidesmus indicus, hyptis suaveolens, malvestrum sp., passiflora edulis, pergularia daemia, peristrophe bicalyculata, shuteria hirsuta, solanum nigrum, tecoma stans, and verbascum chinense on the growth of microsporum gypseum, chrysosporium tropicum and trichophyton terrestre was evaluated and di ...199710386016
a novel 8.7 kda protease inhibitor from chan seeds (hyptis suaveolens l.) inhibits proteases from the larger grain borer prostephanus truncatus (coleoptera: bostrichidae).a novel trypsin inhibitor purified from chan seeds (hyptis suaveolens, lamiaceae) was purified and characterized. its apparent molecular mass was 8700 da with an isoelectric point of 3.4. its n-terminal sequence showed a high content of acidic amino acids (seven out of 18 residues). its inhibitory activity was potent toward all trypsin-like proteases extracted from the gut of the insect prostephanus truncatus (coleoptera: bostrichidae), a very important pest of maize. this activity was highly sp ...200415142539
wound healing property of ethanolic extract of leaves of hyptis suaveolens with supportive role of antioxidant enzymes.ethanolic extract of leaves of hyptis suaveolens was evaluated for its wound healing activity in ether-anaesthetized wistar rats at two different doses (400 and 800 mg/kg) using incision, excision, and dead space wound model. significant increase in skin breaking strength, granuloma breaking strength, wound contraction, hydroxyproline content and dry granuloma weight and decrease in epithelization period was observed. a supportive study made on granuloma tissue to estimate the levels of catalase ...200315267154
comparative toxicity effect of bush tea leaves (hyptis suaveolens) and orange peel (citrus sinensis) oil extract on larvae of the yellow fever mosquito aedes aegypti.the ethanolic extracts of the orange peel (citrus sinensis) and bush tea leaves (hyptis suaveolens) were compared for their toxicity effect on the larvae of the yellow fever mosquito aedes aegypti collected from disused tyres beside college of natural sciences building university of agriculture, abeokuta, nigeria. eight graded concentrations, 0.9ppm, 0.8ppm, 0.7ppm, 0.6ppm, 0.5ppm, 0.4ppm, 0.3ppm and 0.2ppm of both plant extracts were tested on the larvae. the mean lethal dose ld10, was 0.15 ppm ...200516941944
inhibition of aflatoxin b production of aspergillus flavus, isolated from soybean seeds by certain natural plant products.the inhibitory effect of cowdung fumes, captan, leaf powder of withania somnifera, hyptis suaveolens, eucalyptus citriodora, peel powder of citrus sinensis, citrus medica and punica granatum, neem cake and pongamia cake and spore suspension of trichoderma harzianum and aspergillus niger on aflatoxin b(1) production by toxigenic strain of aspergillus flavus isolated from soybean seeds was investigated.200617032218
repellent activity of plant-derived compounds against amblyomma cajennense (acari: ixodidae) nymphs.repellence responses of amblyomma cajennense nymphs to callicarpenal, intermedeol, hyptis suaveolens essential oil, extract of melia azedarach, cymbopogon nardus, spiranthera odoratissima, chenopodium ambrosioides, ageratum conyzoides, mentha pulegium, ruta graveolens, and memora nodosa were studied. among these the extract of c. nardus stood out because of the long-lasting repellence, maintaining, in the highest concentration, 35h of protection against 90% of the nymphs. the essential oil of h. ...201019897309
Anti-hyperglycemic activity of leaves extract of Hyptis suaveolens L. Poit in streptozotocin induced diabetic rats.To evaluate the antihyperglycemic activity of leaves of Hyptis suaveolens using streptozotocin model.201121967690
differential larval toxicity and oviposition altering activity of some indigenous plant extracts against dengue and chikungunya vector aedes albopictus.mosquitoes are well known as vectors of several disease causing pathogens. the extensive use of synthetic insecticides in the mosquito control strategies resulted to the development of pesticide resistance and fostered environmental deterioration. hence in recent years plants become alternative source of mosquito control agents. the present study assessed the larvicidal and oviposition altering activity of six different plants species-alstonia scholaris, callistemon viminalis, hyptis suaveolens, ...201426114131
bioactive compounds of aspergillus terreus-f7, an endophytic fungus from hyptis suaveolens (l.) poit.the compounds terrein (1), butyrolactone i (2), and butyrolactone v (3) were isolated from the ethyl acetate extract (etoac) of the endophytic fungus aspergillus terreus-f7 obtained from hyptis suaveolens (l.) poit. the extract and the compounds presented schistosomicidal activity against schistosoma mansoni; at 100 µg/ml for etoac extract, 1297.3 µm for compound 1, 235.6 µm for compound 2, and 454.1 µm for compound 3, they killed 100% of the parasites after 72 h of treatment. compounds 1, 2, an ...201728243983
inhibition of quorum sensing mediated biofilm development and virulence in uropathogens by hyptis suaveolens.bacterial urinary tract infections (utis) are the most common nosocomial infections, accounting for about 40 % of all hospital-acquired infections. the bacterial spectrum of nosocomial utis is broad and the treatment of utis is becoming difficult owing to the emergence of drug resistance. therefore, it is reasonable to investigate novel and alternative therapeutic strategies to treat utis. since utis are caused by uropathogens with quorum sensing (qs)-dependent biofilm forming abilities, interru ...201525656290
repellent and anti-quorum sensing activity of six aromatic plants occurring in colombia.essential oils (eos) are widely used as biopesticides and to control bacterial infections. this study describes the ability of six eos isolated from plants cultivated in colombia to perform as repellents against ulomoides dermestoides and as quorum sensing (qs) inhibitors. eos from aloysia triphylla, cymbopogon nardus, lippia origanoides, hyptis suaveolens, swinglea glutinosa and eucalyptus globulus were repellents classified as class iv, iv, iv, iii, ii, and ii, respectively, whereas the commer ...201526669119
evaluation of extracts and oils of mosquito (diptera: culicidae) repellent plants from sweden and laboratory tests, ethyl acetate extracts of hyptis suaveolens poit. from guinea-bissau and rhododendon tomentosum (stokes) h. harmaja (formerly ledum palustre l.) and myrica gale l. significantly reduced probing activity of aedes aegypti (l.). in the field in southern sweden, extracts of leaves of r. tomentosum, m. gale, and achillea millefolium l. significantly reduced biting by aedes mosquitoes. volatile compounds from m. gale, r. tomentosum, a. millefolium, and h. suaveolens were collected ...200616506457
screening of some weeds for larvicidal activity against aedes albopictus, a vector of dengue and chikungunya.screening of crude extracts of plants facilitates the establishment of highly effective extract for mosquito control. this practice should be preferred before in depth study of plant extracts rather than spending much efforts and energy in detailed examinations for practically ineffective extracts. in this study, leaf powders of four weed plants were used for the quick screening of effective plant extract as larvicide against iii instar larvae of aedes albopictus skuse. at the same time, effect ...201525815872
larvicidal and repellent activity of hyptis suaveolens (lamiaceae) essential oil against the mosquito aedes albopictus skuse (diptera: culicidae).lamiaceae have traditionally been used in developing countries for their insecticidal and repellent properties against several insect species. in our research, the essential oil (eo) extracted from fresh leaves of hyptis suaveolens (lamiaceae), and its main constituents were evaluated for larvicidal and repellent activity against the asian tiger mosquito, aedes albopictus skuse (diptera: culicidae), currently the most invasive mosquito worldwide. h. suaveolens eo had insecticidal activity agains ...201222160253
genotoxicity assessment of two common curing weeds: hyptis suaveolens (l.) poir. and leucas indica (l.) r. br.hyptis suaveolens and leucas indica, two common weeds were selected for the present study, to reveal their probable cytotoxic potential. the meristematic root tips of allium cepa were used for testing the cytotoxic property of the aqueous leaf extracts containing both polar and non-polar compounds, and that containing polar compounds alone, at different concentrations (0.125, 0.25, 0.5, 1 and 2 %) and at different time durations, using distilled water as negative control. mitotic squash preparat ...201626286182
potential of the bush mint, hyptis suaveolens essential oil for personal protection against mosquito biting.we studied the potential of the essential oil extract from the bush mint, hyptis suaveolens, for use against mosquito biting under both laboratory and field conditions. in the laboratory, the repellency of various concentrations (1-6%) of the essential oil was assessed against anopheles gambiae, based on a 15-min landing and biting on treated forearms of volunteers. in the laboratory, the percentage of mosquitoes landing on the forearm was 42, 33, 23, 23, 9, and 2 for 1%, 2%, 3%, 4%, 5%, and 6% ...201222533079
the effect of essential oils of sweet fennel and pignut on mortality and learning in africanized honeybees (apis mellifera l.) (hymenoptera: apidae).it was recently discovered that exposure to small concentrations of the essential oils of sweet fennel (foeniculum vulgare mill) or pignut [hyptis suaveolens (l.) poit] can be used to control aphids. what is not known is whether these oils also influence honeybee behavior. experiments using both harnessed and free-flying foragers at concentrations used to control aphids showed that bees readily associated the odors with a reward, discriminated between them, and were not repelled. honeybees, howe ...200818246255
plant products used as mosquito repellents in guinea bissau, west standardized interviews of people in 23 rural villages, in the oio region of guinea bissau, we collected data on which plant species and plant derived products or methods people use to reduce mosquito biting activity. the following plants were used to reduce numbers of mosquitoes indoors at night: fresh or smouldering hyptis suaveolens poit. (lamiaceae), smoke of the bark of daniellia oliveri rolfe (caesalpiniaceae), smoke of the infructescence of elaeis guineensis jacq. (arecaceae), smoke of ...19999924960
ingestion toxicity of three lamiaceae essential oils incorporated in protein baits against the olive fruit fly, bactrocera oleae (rossi) (diptera tephritidae).the ingestion toxicity of three lamiaceae essential oils (eos) - hyptis suaveolens, rosmarinus officinalis and lavandula angustifolia - incorporated in protein baits was evaluated against bactrocera oleae, a worldwide pest of olive fruits. in laboratory conditions, all the tested eos showed dose-dependent toxicity on b. oleae, with mortality rates ranging from 12% (eo concentration: 0.01% w:v) to 100% (eo concentration: 1.75% w:v). semi-field results highlighted the toxicity of l. angustifolia a ...201323594314
laboratory and field evaluation of medicinal plant extracts against filarial vector, culex quinquefasciatus say (diptera: culicidae).the present study explored the effects of jatropha curcas, hyptis suaveolens, abutilon indicum, and leucas aspera tested against third instar larvae of filarial vector, culex quinquefasciatus. the dried plant materials were powdered by an electrical blender. from each sample, 500 g powder was macerated with 1.5 l of hexane, chloroform, ethyl acetate, and methanol 8h, using soxhlet apparatus, and filtered. the extracts were concentrated at reduced temperature on a rotary evaporator and stored at ...201222146997
insecticidal activity of ageratum conyzoides l., coleus aromaticus benth. and hyptis suaveolens (l.) poit essential oils as fumigant against storage grain insect tribolium castaneum herbst.essential oils (eos) from ageratum conyzoides l., coleus aromaticus benth. and hyptis suaveolens (l.) poit were extracted and tested against tribolium castaneum herbst, the storage grain insect. the eos were found effective against tribolium castaneum during in vitro as well as in vivo fumigant testing. the eos of h. suaveolens and a. conyzoides showed 100 % mortality of test insect at 250 ppm while c. aromaticus at 350 ppm. during in vivo fumigant testing of wheat samples against tribolium cast ...201425190885
[repellent activity of plant essential oils against bites of lutzomyia migonei (diptera: psychodidae)].natural repellents from plant extracts have demonstrated good efficacy against bites of some insect species. the present study evaluated the repellent effect of essential oils extracted from 8 plants species against bites of lutzomyia migonei, the leishmania vector. the essential oils were extracted by steam destillation in clevenger chamber, from the following plants: hyptis suaveolens, pimenta racemosa, piper marginatum, monticalia imbricatifolia, pseudognaphalium caeruleocanum, espeletia shul ...201021250485
antinociceptive effect and acute toxicity of the hyptis suaveolens leaves aqueous extract on mice.the aqueous extract of hyptis suaveolens leaves was studied for their antinociceptive property in chemical and thermal models of nociception in mice. oral administration of the aqueous extract (100, 200, and 400 mg/kg) dose-dependently reduced the number of writhings induced by acetic acid, decreased the licking activity of the early phase in formalin test and increased the reaction time in hot-plate test. the antinociceptive effect was significantly antagonized by naloxone (3 mg/kg; i.p.). prel ...200717512135
anti-inflammatory activity of two diterpenes of hyptis suaveolens from el salvador.separation and isolation of the two main compounds suaveolol and methyl suaveolate from leaves of chichinguaste (hyptis suaveolens poit., lamiaceae) could be achieved by means of repeated column chromatography and repeated preparative thin layer chromatography. their chemical structures were approved by ms, 1h nmr, 13c nmr and 2d-nmr experiments. the anti-inflammatory activity of the two compounds was tested for the first time as inhibition of croton oil-induced dermatitis of the mouse ear. suav ...200616729571
antiplasmodial diterpenoid from the leaves of hyptis suaveolens.bioactivity-guided fractionation of the petroleum ether extract of the leaves of hyptis suaveolens, widely used in traditional medicine, has led to the isolation of an abietane-type diterpenoid endoperoxide, 13 alpha-epi-dioxiabiet-8(14)-en-18-ol, displaying high antiplasmodial activity (ic(50) 0.1 microg/ml).200516213121
repellency of live potted plants against anopheles gambiae from human baits in semi-field experimental huts.the repellency of potted plants against the malaria vector anopheles gambiae sensu stricto giles was quantified in experimental huts under semi-field conditions inside a screen-walled greenhouse. ocimum americanum linnaeus (labiatae), lantana camara l. (verbenaceae), and lippia uckambensis spreng (verbenaceae) repelled at an average of 39.7% (95% confidence interval [ci] = 29.6-48.4%), 32.4% (95% ci = 19.7-43.1%), and 33.3% (95% ci = 21.5-43.3%) of the mosquitoes, respectively (p < 0.0001 for al ...200212389946
traditional use of mosquito-repellent plants in western kenya and their evaluation in semi-field experimental huts against anopheles gambiae: ethnobotanical studies and application by thermal expulsion and direct burning.ethnobotanical survey in 2 communities in western kenya revealed that the most commonly known repellent plants were ocimum americanum l. (64.1%), lantana camara l. (17.9%), tagetes minuta l. (11.3%) and azadirachta indica a. juss (8.7%) on rusinga island, and hyptis suaveolens poit. (49.2%), l. camara (30.9%) and o. basilicum l. (30.4%) in rambira. direct burning of plants is the most common method of application for o. americanum (68.8%), l. camara (100%) and o. basilicum (58.8%). placing branc ...200212174767
possible artefacts in the in vitro determination of antimalarial activity of natural products that incorporate into lipid bilayer: apparent antiplasmodial activity of dehydroabietinol, a constituent of hyptis suaveolens.dehydroabietinol isolated from hyptis suaveolens (l.) poit. was found to inhibit growth of chloroquine-sensitive as well as chloroquine-resistant strains of plasmodium falciparum cultivated in erythrocytes in vitro (ic 50 26-27 microm). however, erythrocytes exposed to dehydroabietinol were transformed in a dose-dependent manner towards spherostomatocytic forms with concomitant formation of endovesicles, as disclosed by transmission electron microscopy. the erythrocyte shape alterations caused b ...200212094303
effect of various essential oils on callosobruchus maculatus (f.) (coleoptera: bruchidae).essential oils were extracted from four west african plant species [tagetes minuta (family compositae), hyptis suaveolens (family labiatae), white basil ocimum canum (family labiatae), and sweet basil o. basilicum (family labiatae)] by steam distillation. the oil of the pepper piper guineense (family piperaceae), was extracted from the fruits by hydro distillation and ethanol extraction. mixed essential oil and total ethanol extract was used. kaolin powder (clay) was mixed (aromatized) with thes ...200010880813
suaveolic acid: a potent phytotoxic substance of hyptis suaveolens.hyptis suaveolens (lamiaceae) is an exotic invasive plant in many countries. earlier studies reported that the aqueous, methanol, and aqueous methanol extract of h. suaveolens and its residues have phytotoxic properties. however, to date, the phytotoxic substances of this plant have not been reported. therefore, the objectives of this study were isolation and identification of phytotoxic substances of h. suaveolens. aqueous methanol extract of this plant was purified by several chromatographic r ...201425405221
uterine contractility of plants used to facilitate childbirth in nigerian ethnomedicine.pregnant women in nigeria use plant preparations to facilitate childbirth and to reduce associated pain. the rationale for this is not known and requires pharmacological validation.201222766472
Displaying items 1 - 31 of 31