| gastric antisecretory and antiulcer activities of an ethanolic extract of bidens pilosa l. var. radiata schult. bip. | bidens pilosa var. radiata schult. bip. is used in folk medicine to treat stomach disorders including peptic ulcers. the ethanolic extract (0.5-2 g/kg) decreased the gastric juice volume, acid secretion, as well as pepsin secretion in pylorus ligated rats. b. pilosa extract showed antiulcer activity against indomethacin-induced gastric lesions. the extract effectively inhibited gastric haemorrhagic lesions induced by ethanol, and with an effective dose of 2 g/kg being more potent than sucralfate ... | 1999 | 10617069 |
| bioactive polyacetylenes from bidens pilosa. | from the methanolic extract of the whole plants of bidens pilosa the new beta-d-glucopyranosyloxy-3-hydroxy-6(e)-tetradecen-8, 10,12-triyne besides a known polyine has been isolated and identified mainly by ir and nmr methods. the new compound showed overgrowing action against normal and transformed human cell lines in culture. | 1996 | 8792670 |
| screening of zulu medicinal plants for prostaglandin-synthesis inhibitors. | aqueous and ethanolic extracts of 39 plants used in traditional zulu medicine to treat headache or inflammatory diseases were screened for prostaglandin-synthesis inhibitors. extracts were tested in an in vitro assay for cyclooxygenase inhibitors. in general, ethanolic extracts caused higher inhibition than aqueous extracts. two-thirds of the plants screened had high inhibitory activity. the highest inhibition was obtained with ethanolic extracts of bidens pilosa, eucomis autumnalis, harpephyllu ... | 1996 | 8735453 |
| photosensitization of escherichia coli and saccharomyces cerevisiae by phenylheptatriyne from bidens pilosa. | | 1980 | 6994864 |
| test of catechol, tannic acid, bidens pilosa, croton oil, and phorbol for cocarcinogenesis of esophageal tumors induced in rats by methyl-n-amylnitrosamine. | catechol (cas: 120-80-9), given in drinking water to rats, was the most effective of 5 phenols in enhancing [3h]thymidine incorporation [( 3h]dthd-l) into esophageal dna. to test for esophageal cocarcinogenesis, groups of 30 male mrc-wistar rats received 3 weekly ip injections of 25 mg methyl-n-amylnitrosamine [(mnan) cas: 13256-07-0]/kg. from the time of the first mnan injection, each group also received catechol, tannic acid (cas: 1401-55-4), dried leaves of bidens pilosa l., or croton oil (ca ... | 1985 | 3858597 |
| new evidences of antimalarial activity of bidens pilosa roots extract correlated with polyacetylene and flavonoids. | bidens pilosa is among the several plants used in brazil to treat malaria. it was demonstrated that crude extracts from roots prepared with 80% ethanol by percolation are active in vitro against plasmodium falciparum and the activity is correlated with the presence of polyacetylene and flavonoids. this extract was submitted to column chromatography with ether and ether methanol (1:1) and two fractions, enriched in polyacetylene and flavonoids, respectively, were obtained. the extract and the fra ... | 2004 | 15182902 |
| constituents and biological activity of bidens pilosa l. grown in egypt. | column chromotography and preparative tlc of the light petroleum-diethyl ether extract from bidens pilosa l. afforded tridecapentyn-1-ene, trideca-2,12-diene-4,6,8,10-tetrayne-1-ol, trideca-3,11-diene-5,7,9-triyne-1,2-diol and trideca-5-ene-7,9,11-triyne-3-ol. the compounds were identified on the bases of uv, 1h-nmr spectra and comparison with reported data. the chloroform extract was chromatographed to yield b-amyrin, phytosterin-b, esculetin and b-sitosterol glucoside. the petroleum ether extr ... | 1991 | 1785360 |
| sticktight fleas (echidnophaga gallinacea) on birds. | | 1992 | 1557875 |
| the ethnopharmacology of madeira and porto santo islands, a review. | the ethnopharmacology of madeira and porto santo islands is extremely interesting because of the cultural and biogeographic features of this region, which make it a centre of medicinal plant diversity (richness of endemic flora, geographical isolation in the atlantic sea, crosscultural influences, and past abundance of local healers). the medicinal flora of madeira is composed of 259 species. some noteworthy medicinal taxa, endemic or locally relevant, are: acanthus mollis, aeonium glandulosum, ... | 1995 | 7650952 |
| the hepatoprotective effects of taiwan folk medicine ham-hong-chho in rats. | bidens pilosa l. var minor (blume) sherff, b. pilosa l. and b. chilensis dc (compositae), commonly known as "ham-hong-chho" in taiwan, have been traditionally used for medicinal purposes. to clarify and compare the hepatoprotective effects of these three plants, we evaluated their potential effectiveness on ccl4- and acetaminophen-induced acute hepatic lesions in rats. the results indicated that the increase in sgot and sgpt activities caused by ccl4 (3.0 ml/kg, s.c.) and acetaminophen administr ... | 1996 | 8982435 |
| [effect of medicinal plant extracts on the growth of microorganisms]. | extracts obtained from sweatweed and licorice roots, flax seeds, milfoil, bur-marigold, plantain, coltsfoot, nettle, indian corn stigmas, laminaria produced a stimulating effect on the growth of candida albicans test strain and streptococcus pyogenes test strain dick 1. sweatweed, licorice, aerva lanata and violet extracts influenced the growth of corynebacterium xerosis 1911, while sweatweed, violet, horse-tail, bur-marigold, camomile, plantain, and nettle extracts influenced the growth of shig ... | 2001 | 11871308 |
| the search for new antimalarial drugs from plants used to treat fever and malaria or plants ramdomly selected: a review. | in this review we discuss the ongoing situation of human malaria in the brazilian amazon, where it is endemic causing over 610,000 new acute cases yearly, a number which is on the increase. this is partly a result of drug resistant parasites and new antimalarial drugs are urgently needed. the approaches we have used in the search of new drugs during decades are now reviewed and include ethnopharmocology, plants randomly selected, extracts or isolated substances from plants shown to be active aga ... | 2001 | 11784919 |
| antimalarial activity of extracts and fractions from bidens pilosa and other bidens species (asteraceae) correlated with the presence of acetylene and flavonoid compounds. | after interviewing natives and migrants from the amazon region of brazil about plants traditionally used for treatment of malaria fever and/or liver disorders, we selected and identified 41 different species, including the native bidens (asteraceae). we have undertaken an antimalarial study of bidens pilosa and other species of bidens from abroad. the crude ethanol extracts (whole plant, leaves and roots) and the chloroform and butanol fractions from b. pilosa at concentrations of 50 microg/ml c ... | 1997 | 9254115 |
| anti-microbial activity of bidens pilosa, bischofia javanica, elmerillia papuana and sigesbekia orientalis. | the ethanol extracts of bidens pilosa (whole plant), bischofia javanica (leaves), elmerillia papuana (root bark) and sigesbekia orientalis (whole plant) were partitioned (petrol, dichloromethane, ethyl acetate). the crude ethanolic extracts and all the obtained fractions showed a broad spectrum of antibacterial activity, the ethyl acetate fractions and the petrol fraction of e. papuana being the most effective. no activity was observed against the tested moulds. | 2001 | 11543964 |
| effects of the aqueous and methylene chloride extracts of bidens pilosa leaf on fructose-hypertensive rats. | we investigated the effects of the aqueous (150-350 mg/kg) and methylene chloride (150-300 mg/kg) extracts of bidens pilosa on fructose-induced hypertension in rats. food and liquid intake were measured as well as systolic blood pressure and plasma levels of glucose, insulin, cholesterol, triglycerides and creatinine. fructose feeding for 6 weeks induced hypertension, hyperinsulinemia and increased plasma triglyceride levels in male wistar rats. the aqueous and methylene chloride extracts of b. ... | 2001 | 11448541 |
| effects of methanol, cyclohexane and methylene chloride extracts of bidens pilosa on various gastric ulcer models in rats. | ethnobotanical studies have revealed that bidens pilosa is used in the traditional management of wounds and chronic gastro-duodenal ulcers. this led us to screen the methanol, cyclohexane and methylene chloride extracts of the plant for anti-ulcerogenic activity using the hcl/ethanol gastric necrotizing solution. the methylene chloride extract, which showed the highest activity (100% inhibition) at a dose of 750 mg/kg compared with the methanol and cyclohexane extracts (41 and 46% inhibition, re ... | 2000 | 11090994 |
| immunosuppressive and anti-inflammatory effects of methanolic extract and the polyacetylene isolated from bidens pilosa l. | the immunomodulatory effect of the methanolic extract obtained from dried leaves of bidens pilosa l. (asteraceae) and the polyacetylene 2-o-beta-d-glucosyltrideca-11 e-en-3,5,7,9-tetrayn-1,2-diol (pa-1) isolated from it was investigated. the extract inhibited the proliferative response in two in vitro models: human lymphocytes stimulated by 5 microg ml(-1) phytohemagglutinin (pha) or to 100 nm 12-o-tetradecanoyl phorbol-13-acetate (tpa) plus 0.15 microm ionomycin and murine lymphocytes stimulate ... | 1999 | 10437654 |
| [hypotensive effects of a methanol extract of bidens pilosa linn on hypertensive rats]. | bidens pilosa linn is highly regarded in some parts of cameroon in traditional folk medical practices. the hypotensive effects of the leaf methanol extract from bidens pilosa linn (asteraceae) were evaluated in spontaneously hypertensive rats (shr), salt-loading hypertensive rats (slhr) and normotensive wistar rats (ntr) using the indirect (tail-cuff) method. acute changes in urine volume and urinary excretion of na+ and k+ were also studied. the hypotensive effect of the extract was more remark ... | 1999 | 10216804 |
| ultraviolet-mediated cytotoxic activity of phenylheptatriyne from bidens pilosa l. | the tropical weed bidens pilosa l. (asteraceae) contains a number of polyacetylenes which are phototoxic to bacteria, fungi, and human fibroblast cells in the presence of sunlight, artificial sources of long-wave ultraviolet light, or cool-white fluorescent light. the principle photoactive compound in the leaf, phenylheptatriyne, is present in the cuticle as well as in the underlying cells. experiments with calf thymus dna indicate that, unlike photoactive furanocoumarins, phenylheptatriyne does ... | 1979 | 469551 |
| ethnomedicines used in trinidad and tobago for urinary problems and diabetes mellitus. | this paper is based on ethnobotanical interviews conducted from 1996-2000 in trinidad and tobago with thirty male and female respondents. | 2006 | 17040567 |
| investigation on the hypoglycaemic effects of extracts of four mexican medicinal plants in normal and alloxan-diabetic mice. | the hypoglycaemic activities of four water ethanol extracts (wee) prepared from bidens pilosa l., salvia officinalis l., psacalium peltatum h.b.k. (cass) and turnera diffusa willd. were investigated in healthy and alloxan-diabetic mice. the wee of s. officinalis significantly reduced the blood glucose of fasting normal mice 120 (15.7%) and 240 min (30.2%) after intraperitoneal administration (p < 0.05). the wee of p. peltatum and b. pilosa also significantly diminished glycaemia in healthy mice ... | 2002 | 12112298 |
| allelopathic potential and chemical constituents of volatiles from ageratum conyzoides under stress. | the allelopathic potential of ageratum conyzoides was investigated under different environmental stress conditions, including nutrient deficiency. physical damage, 2.4-d treatment, competition with bidens pilosa, infection with erysiphe cichoracearum, and feeding by aphiids gossypii. the inhibitory effects of a. conyzoides volatiles on peanut (arachis hypogaea), redroot amaranth (amaranthus retroflexus), cucumber (cucumis sativus), and ryegrass (lolium multiforum) increased when plants were grow ... | 2002 | 12184395 |
| what's eating you? echidnophaga gallinacea (the sticktight flea). | | 2001 | 11710441 |
| leaf methanol extract of bidens pilosa prevents and attenuates the hypertension induced by high-fructose diet in wistar rats. | chronic fructose treatment in rats has repeatedly been shown to elevate blood pressure in association with insulin resistance and hyperinsulinemia. the purpose of the current study was to investigate the effect of the leaf methanol extract of bidens pilosa on systolic blood pressure (sbp) and plasma glucose, insulin, cholesterol, triglycerides and creatinine levels in rats with fructose-induced hypertension. wistar rats that drank a 10% fructose solution for 3-6 weeks showed significant increase ... | 2002 | 12426085 |
| wolbachia endosymbionts in fleas (siphonaptera). | intracellular endosymbionts, wolbachia spp., have been reported in many different orders of insects and in nematodes but not previously in fleas. this is the first conclusive report of wolbachia spp. within members of the siphonaptera. using nested polymerase chain reaction (pcr) targeting of the 16s ribosomal rna gene, we screened for wolbachia spp. in fleas collected from 3 counties in georgia and 1 in new york. the prevalence of wolbachia spp. detected varied among the 6 different species scr ... | 2003 | 12760642 |
| sticktight fleas associated with fowl pox in a backyard chicken flock in california. | a mixed breed rooster, from a backyard flock of 13 chickens, was received at california veterinary diagnostic laboratory system-turlock branch for postmortem examination. the bird presented with thickened, featherless, scab-encrusted skin around the head region. numerous sticktight fleas were found attached to the encrusted skin. microscopic evaluation of the skin revealed a lymphoplasmacytic reaction in the dermis with visible embedded flea mouthparts. also noted histologically in this region w ... | 1997 | 9454942 |
| antibacterial activity of south african plants used for medicinal purposes. | crude extracts from 21 south african medicinal plants, traditionally used for ailments of an infectious or septic nature, were screened for in vitro antibacterial activity using the agar diffusion and dilution methods. almost all the activity exhibited was against gram-positive bacteria, with 12 of the 21 plant species tested showing some activity against bacillus subtilis. only the warburgia salutaris methanol extract inhibited the growth of escherichia coli. none of the extracts had any activi ... | 1997 | 9147258 |
| possible mechanisms of action of the neutral extract from bidens pilosa l. leaves on the cardiovascular system of anaesthetized rats. | the aim of this study was to investigate the hypotensive and cardiac effects of the neutral extract from bidens pilosa leaves. intravenous administration of the extract resulted in a biphasic dose-related hypotensive activity. in normotensive rats (ntr), b. pilosa decreased systolic blood pressure by 18.26%, 42.5% and 30% at doses of 10, 20 and 30 mg/kg, respectively. in spontaneously hypertensive rats (shr), the decrease in systolic blood pressure was 25.77%, 38.96% and 28.64% at the above dose ... | 2003 | 14669244 |
| herbal mixtures in the traditional medicine of eastern cuba. | herbal mixtures in the traditional medicine of eastern cuba. traditional herbal mixtures in eastern cuba are investigated through interviews with 130 knowledgeable people and traditional healers of the provinces of santiago de cuba and guantánamo. one hundred seventy plant species and other products are used in 199 formulas, galones being the more complex. cocos nucifera l. (arecaceae), bidens pilosa l. (asteraceae), cissus sicyoides l. (vitaceae), erythroxylum havanense jacq. (erythroxylaceae) ... | 2004 | 15013195 |
| antimalarial activity of bidens pilosa l. (asteraceae) ethanol extracts from wild plants collected in various localities or plants cultivated in humus soil. | bidens pilosa (asteraceae), a medicinal plant used worldwide, has antimalarial activity as shown in previous work. this study tested ethanol extracts from wild plants collected in three different regions of brazil and from plants cultivated in various soil conditions. the extracts were active in mice infected with p. berghei: doses of < or =500 mg/kg administered by oral route reduced malaria parasitaemia and mouse mortality; higher doses were found to be less effective. tested in vitro against ... | 2004 | 15476304 |
| effects of leaf aqueous extract of bidens pilosa (asteraceae) on kcl- and norepinephrine-induced contractions of rat aorta. | the effect of leaf aqueous extract of bidens pilosa linn. on kcl- and norepinephrine-induced contractions of rat aortic strips was studied. in aortic strips with endothelium intact, contractions induced using 60 mm kcl and 10(-5) m norepinephrine were dose-dependently relaxed by the extract, a more significant effect being seen with norepinephrine-induced contractions. following mechanical damage to the aortic endothelium, inhibition of contractions was more prominent (105%) with the norepinephr ... | 1998 | 9582009 |
| anti-inflammatory activity of taiwan folk medicine "ham-hong-chho" in rats. | "ham-hong-chho" is a folk medicine in taiwan, derived from the entire plants of bidens pilosa l. var. minor (blume) sherff (compositae), b. pilosa l. and b. chilensis dc. the anti-inflammatory effect of aqueous extracts of the three plants against paw edema induced by carrageenan and chronic arthritis induced by complete freund's adjuvant were determined in rats. the results indicated that paw edema induced by carrageenan was significantly decreased by treatment with aqueous extracts (150 or 300 ... | 1995 | 8571923 |
| influence of type and amount of straw cover on weed emergence. | this research was undertaken during 2003-2004 growing season to evaluate the effects of type [forage sorghum "hybrid cober exp" (sorghum bicolor x sorghum sudanense), forage millet (pennisetum americanum "var. bn2"), finger millet (eleusine coracana), and st lucia grass (brachiaria brizantha)] and amount of straw cover (5.5 and 3.0 t ha(-1)) upon the emergence of bidens pilosa, chamaesyce spp., amaranthus spp., and commelina benghalensis, under field conditions of the brazilian cerrado, in the r ... | 2005 | 15656176 |
| anti-herpes simplex virus activity of bidens pilosa and houttuynia cordata. | the present study evaluated the antiviral activity of bidens pilosa l. var. minor (blume) sherff and houttuynia cordata thunb., using cytotoxicity test with xtt-based colorimetric assay. bcc-1/kmc cells were infected with herpes simplex virus (hsv) and then were cultured with hot water extract of b. pilosa (hwbp) or h. cordata (hwhc). results showed that hwbp significantly inhibited the replication of hsv at a concentration of 100 microg/ml (11.9% for hsv-1, p < 0.01; 19.2% for hsv-2, p < 0.005) ... | 2003 | 12943167 |
| fleas parasitizing domestic dogs in georgia, usa: species composition and seasonal abundance. | monthly flea collections were made from domestic dogs in bulloch county, georgia, usa from september 1996 to august 2004. a total of 2518 fleas belonging to 8 species were collected. the most common flea was the cat flea, ctenocephalides felis (389 males and 1148 females), followed by the dog flea, ctenocephalides canis (250 males and 285 females), a generalist/carnivore flea, pulex simulans (106 males and 213 females), and a sticktight flea, echidnophaga gallinacea (3 males and 89 females). sma ... | 2005 | 15893082 |
| relaxant effects of the neutral extract of the leaves of bidens pilosa linn on isolated rat vascular smooth muscle. | the long-lasting antihypertensive effect of a neutral extract of bidens pilosa has been suggested to be due to vasodilation. the present work was undertaken to assess this hypothesis. the vasorelaxant effect of a neutral extract (nbp) of the leaves of b. pilosa was evaluated in vitro on isolated rat aorta contracted with kcl or norepinephrine. nbp induced a concentration-dependent vasorelaxation of the rat aorta precontracted with kcl (60 mm) by 25%-105% at the respective concentrations of 0.25- ... | 2005 | 15934016 |
| ethyl caffeate suppresses nf-kappab activation and its downstream inflammatory mediators, inos, cox-2, and pge2 in vitro or in mouse skin. | ethyl caffeate, a natural phenolic compound, was isolated from bidens pilosa, a medicinal plant popularly used for treating certain inflammatory syndromes. the purpose of this study was to investigate the structural activity, and the anti-inflammatory functions and mechanism(s) of ethyl caffeate. ethyl caffeate was found to markedly suppress the lipopolysaccharide (lps)-induced nitric oxide (no) production (ic(50) = 5.5 microg ml(-1)), mrna and protein expressions of inducible nitric oxide synth ... | 2005 | 16041399 |
| the distinct effects of a butanol fraction of bidens pilosa plant extract on the development of th1-mediated diabetes and th2-mediated airway inflammation in mice. | bidens pilosa is claimed to be useful for immune or anti-inflammatory disorders; however, little scientific evidence has been published concerning its function. in this paper, immune disease mouse models were used to study the function of a butanol fraction of b.pilosa. we demonstrated treatment with the butanol fraction of b.pilosa ameliorated th1 cell-mediated autoimmune diabetes in nonobese diabetic (nod) mice but caused deterioration of th2 cell-mediated airway inflammation induced by ovalbu ... | 2005 | 15864741 |
| studies of anticancer and antipyretic activity of bidens pilosa whole plant. | screening of different extracts and fractions from the plant bidens pilosa linn. var. (asteraceae) has been conducted using the in-vitro comet assay for anticancer and the antipyretic action, which was done with in-vivo models. the extract from whole plant was extracted with n-hexane, chloroform and methanol extract (e1 - e3). the extracts were fractioned by column chromatography method and fractioned with ethyl acetate, acetone and water (f1 - f3). all the extracts and fractions were tested for ... | 2006 | 16615823 |
| [the antistaphylococcal properties of plant extracts in relation to their prospective use as therapeutic and prophylactic formulations for the skin]. | antistaphylococcal activities of plant extracts (12 water alcohol glycerol, wag, 6 water alcohol, wa, 8 alcohol glycerol, ag, extracts) towards reference strains and those isolated from patients with pyoinflammatory diseases of the skin were examined by diluting the preparations in solid media. the strains under study were 69 s. aureus, 44 s. epidermidis, and 2 s. saprophyticus ones. fifteen plant extracts have shown antistaphylococcal activities. the most active were oak bark, sage and st. john ... | 1990 | 2256382 |
| bidens pilosa suppresses interleukin-1beta-induced cyclooxygenase-2 expression through the inhibition of mitogen activated protein kinases phosphorylation in normal human dermal fibroblasts. | bidens pilosa (bp) linn. var. radiata is a plant used in traditional folk medicine. it is clinically effective in various diseases; the pathogenesis of most of these involves cyclooxygenase (cox)-2. to investigate the mechanism on which the clinical effectiveness of bp is based, we examined its effects on cox-2 expression and its major product, prostaglandin (pg)e(2), under conditions of inflammation. we induced inflammation in normal human dermal fibroblasts with interleukin (il)-1beta and exam ... | 2006 | 17040496 |
| cytopiloyne, a novel polyacetylenic glucoside from bidens pilosa, functions as a t helper cell modulator. | an extract of bidens pilosa, an anti-diabetic asteraceae plant, has recently been reported to modulate t cell differentiation and prevent the development of non-obese diabetes (nod) in nod mice. in this paper, a novel bioactive polyacetylenic glucoside, cytopiloyne (1), was identified from the bidens pilosa extract using ex vivo t cell differentiation assays based on a bioactivity-guided fractionation and isolation procedure. its structure was elucidated as 2beta-d-glucopyranosyloxy-1-hydroxytri ... | 2007 | 17101254 |
| an introduced generalist parasite, the sticktight flea (echidnophaga gallinacea), and its pathology in the threatened florida scrub-jay (aphelocoma coerulescens). | the sticktight flea, (echidnophaga gallinacea), a major pest of the domestic chicken (gallus gallus) that can cause severe pathology or death if untreated, is rarely recorded in free-living avian species. sticktight fleas, however, were observed on the federally threatened florida scrub-jay (aphelocoma coerulescens) in february 2004, in south central florida. of the 81 florida scrub-jays (fsjs) sampled before the 2004 breeding season, 12 were infested, with from 1 to as many as 57 fleas. subsequ ... | 2006 | 17152932 |
| cytopiloyne, a polyacetylenic glucoside, prevents type 1 diabetes in nonobese diabetic mice. | some polyacetylenes from the plant bidens pilosa have been reported to treat diabetes. in this study, we report that the cytopiloyne from b. pilosa, which is structurally different from the above-mentioned polyacetylenes and inhibits cd4(+) t cell proliferation, effectively prevents the development of diabetes in nonobese diabetic mice as evidenced by a normal level of blood glucose and insulin and normal pancreatic islet architecture. cytopiloyne also suppresses the differentiation of type 1 th ... | 2007 | 17513748 |
| a novel polyacetylene significantly inhibits angiogenesis and promotes apoptosis in human endothelial cells through activation of the cdk inhibitors and caspase-7. | a novel bioactive polyacetylene compound, 1,2-dihydroxy-5(e)-tridecene-7,9,11-triyne (compound 1), was identified from the bidens pilosa extract using an ex vivo primary human umbilical vein endothelium cell (huvec) bioassay-guided fractionation protocol. our results demonstrate that compound 1 (at 2.5 microg/ml) possessed significant anti-angiogenic effects, as manifested by an inhibition of huvec proliferation, migration, and the formation of tube-like structures in collagen gel. moreover, com ... | 2007 | 17559025 |
| the role of the burrowing owl and the sticktight flea in the spread of plague. | | 1941 | 17821262 |
| sticktight flea (echidnophaga gallinacea) infestation in a victoria crowned pigeon (goura victoria). | a 12-yr-old female victoria crowned pigeon (goura victoria), acquired from a private aviculturalist, was diagnosed with a flea infestation during a quarantine examination. the fleas were embedded around the face and throat and were identified as sticktight fleas (echidnophaga gallinacea). despite the sticktight fleas' worldwide distribution and broad host range, there is a paucity of reports on flea infestations and their treatment in zoo and exotic pet birds. although this parasite has the pote ... | 2007 | 18229869 |
| studies on the esophagus. ii. enhancement of [3h]thymidine incorporation in the rat esophagus by bidens pilosa (a plant eaten in south africa) and by croton oil. | | 1979 | 421195 |
| bidens pilosa l. exhibits high sensitivity to coumarin in comparison with three other weed species. | nine natural plant compounds were screened for phytotoxicity to bidens pilosa l. a troublesome weed in field and plantation crops. the sensitivity of three other weed species to coumarin, the most active identified compound, was also evaluated. coumarin, at a concentration of 500 microm, had little effect on germination and growth of senna obtusifolia l., euphorbia heterophylla l., and ipomoea grandifolia l. when compared with its effects on b. pilosa l. in a concentration range of 10-100 microm ... | 2008 | 18338136 |
| protection from oxidative damage using bidens pilosa extracts in normal human erythrocytes. | bidens pilosa (b. pilosa) is well known in taiwan as a traditional chinese medicine. the purpose of this study was to evaluate the ability of both the ethanol (etoh) and ethylacetate/ethanol (ea/etoh) extracts from the whole b. pilosa plant, to protect normal human erythrocytes against oxidative damage in vitro. it was determined that the oxidative hemolysis and lipid/protein peroxidation of erythrocytes induced by the aqueous peroxyl radical [2,2'-azobis(2-amidinopropane) dihydrochloride (aaph) ... | 2006 | 16765500 |
| the current status of fleas according to environmental changes in some governorates in egypt. | a preliminary survey of domestic rodent and their fleas was carried out in different environmental governorates (ismailia, dakahlia, el-fayoum, north sinai and matrouh), egypt. flea index (number of flea/rodent) and percentage frequency of different flea species were recorded in spring (2009- 2010). the main rodent species found were the norway rat, rattus norvegicus, the grey-bellied rat, rattus rattus alexandrinus, the white- bellied rat, rattus rattus frugivorus, the house mouse, mus musculus ... | 2011 | 21634253 |
| in vitro study of mutagenic potential of bidens pilosa linné and mikania glomerata sprengel using the comet and micronucleus assays. | teas of bidens pilosa and mikania glomerata are popularly consumed to medicinal ends. the capacity to induce dna damages and mutagenic effects of these teas were evaluated, in vitro, on htc cells, with comet assay and micronucleus test. the teas tested at various doses were prepared differently: infusion of mikania glomerata (im) and bidens pilosa (ib), macerate of mikania glomerata in 80% ethanol (mm80) and decoction of bidens pilosa (db). in im and mm80, the quantity of coumarin was determined ... | 2008 | 18485638 |
| External parasites of raptors (Falconiformes and Strigiformes): identification in an ex situ population from Mexico. | Raptorial birds harbor a variety of ectoparasites and the mayority of them are host specific. The aim of this study was to identify the ectoparasites of captive birds of prey from Mexico, as well as to verify their impact in the health of infested birds. Raptorial birds were confiscated and kept in captivity at the Centro de Investigación y Conservación de Vida Silvestre (CIVS) in Los Reyes La Paz, Mexico State. Seventy-four birds of prey (66 Falconiformes and eigth Strigiformes) of 15 species w ... | 2011 | 22017130 |
| polyacetylenes function as anti-angiogenic agents. | to investigate the antiangiogenic effects of plant extracts and polyacetylenes isolated from bidens pilosa linn., which is a popular nutraceutical herbal tea and folk medicine in anti-inflammatory, antitumor, and other medications worldwide. | 2004 | 15587935 |
| population dynamics of weeds in no-tillage and conventional crop systems. | population dynamics of weeds in successive maize and bean crops were evaluated in two soil management systems (conventional and no-tillage), for two maize applications (grain and silage), and in four consecutive growing seasons. every year, conventional tillage consisted in plowing and harrowing before sowing. in no-tillage, chemical weed desiccation was made with the mixture glyphosate + 2.4-d. to control weeds, the mixture fluazifop-p-butil + fomesafen was applied on the bean crop in all the p ... | 2005 | 15656169 |
| effects of hand weeding strip and nitrogen fertilizer on corn plants. | the objective of the present research was to evaluate effects of different strip weed control associated with nitrogen fertilizer on corn applied after planting. the experiment was set and conducted in botucatu, são paulo state, brazil, and the hybrid planted was dekalb 333-b. a completely randomized block design with four replications was used. experimental plots were disposed as a factorial scheme 2 x 2 x 4, constituted by two types of weeding on row (with or without manual hoeing), two types ... | 2005 | 15656170 |
| anti-hyperglycemic effects and mechanism of bidens pilosa water extract. | bidens pilosa has traditionally been used as an anti-diabetic phytomedicine. however, its alleged benefits and mechanism remain elusive. this study aimed to evaluate the effect and action of bidens pilosa water extract on type 2 diabetes. | 2009 | 19162158 |
| isolation and identification of a potent antimalarial and antibacterial polyacetylene from bidens pilosa. | diseases caused by malaria parasites and pathogenic bacteria were thought to be on the brink of eradication in the 1950-1960s, but they have once again become a serious threat to mankind as a result of the appearance of multidrug resistant strains. the spread of these multidrug resistant organisms has prompted a worldwide search for new classes of effective antimalarial and antibacterial drugs. natural products have been recognized as highly important candidates for this purpose. our attention h ... | 2009 | 19263339 |
| evaluation of antimicrobial and cytotoxic activities of plant extracts from southern minas gerais cerrado. | the antimicrobial activity of plant hidroethanolic extracts on bacteria gram positive, gram negative, yeasts, mycobacterium tuberculosis h37 and mycobacterium bovis was evaluated by using the technique of agar diffusion and microdilution in broth. among the extracts evaluated by agar diffusion, the extract of bidens pilosa leaf presented the most expressive average of haloes of growth inhibition to the microorganisms, followed by the extract of b. pilosa flower, of eugenia pyriformis' leaf and s ... | 2014 | 24553603 |
| a sticktight flea removed from the cheek of a two-year-old boy from los angeles. | species-level identification of an ectoparasite often requires outside expertise. patients are increasingly turning to the internet for medical information, in part to gain access to experts. we present a case of a flea identified after contact was made between a patient's father and the authors via an insect-related forum on the internet. the flea had been attached for 12 hours without inducing symptoms before it was removed. the specimen was identified as a sticktight flea ectoparasites in the ... | 2009 | 19281709 |
| screening for antimicrobial activity of ten medicinal plants used in colombian folkloric medicine: a possible alternative in the treatment of non-nosocomial infections. | the antimicrobial activity and minimal inhibitory concentration (mic) of the extracts of bidens pilosa l., bixa orellana l., cecropia peltata l., cinchona officinalis l., gliricidia sepium h.b. & k, jacaranda mimosifolia d.don, justicia secunda vahl., piper pulchrum c.dc, p. paniculata l. and spilanthes americana hieron were evaluated against five bacteria (staphylococcus aureus, streptococcus beta hemolític, bacillus cereus, pseudomonas aeruginosa, and escherichia coli), and one yeast (candida ... | 2006 | 16483385 |
| protective effects of total flavonoids of bidens pilosa l. (tfb) on animal liver injury and liver fibrosis. | the hepatoprotective effects of total flavonoids of bidens pilosa l. (tfb), a traditional chinese medicine were evaluated in carbon tetrachloride (ccl(4))-induced liver injury in mice and rats. total flavonoids of bidens pilosa l. (25, 50 and 100mg/kg) were administered via gavage daily for 10 days to ccl(4)-treated mice as well as tfb (30, 60 and 90mg/kg) administered for 6 weeks to ccl(4)-treated rats. liver index (liver weight/body weight), serum levels of transaminases (alanine aminotransfer ... | 2008 | 18313245 |
| full-length sequence analysis of a distinct isolate of bidens mottle virus infecting sunflower in taiwan. | the full-length genome of a potyvirus, previously known as sunflower chlorotic spot virus isolate sf-1 (scsv-sf-1) which causes novel symptoms on sunflowers (helianthus annuus), was sequenced and analyzed. the genome of scsv-sf-1 is 9,741 nucleotides long, encoding a polyprotein of 3,071 amino acids containing the consensus motifs of potyviruses. sequence comparison revealed that the 3'-terminus of scsv-sf-1 shared over 96% similarities with isolates of bidens mottle virus (bimov). however, scsv ... | 2009 | 19308314 |
| study of the antitumor potential of bidens pilosa (asteraceae) used in brazilian folk medicine. | bidens pilosa (l.) (asteraceae) is a medicinal plant traditionally used in brazil for treating conditions that can be related to cancer. therefore the present study was carried out to evaluate the antitumor activity of extracts obtained from the aerial parts of this plant species. | 2008 | 18342465 |
| constituents of cajanus cajan (l.) millsp., moringa oleifera lam., heliotropium indicum l. and bidens pilosa l. from nigeria. | the essential oils of four plant species from nigeria have been extracted by hydrodistillation and analyzed by gc and gc-ms. the oils of cajanus cajan were comprised of sesquiterpenes (92.5%, 81.2% and 94.3% respectively in the leaves, stem and seeds). the major compounds identified were alpha-himachalene (9.0-11.5%), beta-himachalene (8.0-11.0%), gamma-himachalene (6.9-8.1%), alpha-humulene (7.1-8.7%) and alpha-copaene (4.5-5.6%). however, monoterpenoid compounds (81.8%) dominated the oil of mo ... | 2009 | 19476009 |
| studies on bioactivity and secondary metabolites of crude extracts of bidens pilosa l. (asteraceae): a medicinal plant used in the transkei region of south africa. | whole plant-parts of bidens pilosa were powdered and extracted in concentrated hexane, acetone, ethanol, methanol and water. the extracts were tested for antimicrobial activity against escherichia coli (25922), bacillus subtilis (atcc 6051), enterococcus faecalis (51299) staphylococcus aureus (atcc 29213) and pseudomonas aeruginosa (atcc127853), using standard microbiological techniques. active crude extracts were macerated in concentrated methanol and tested for secondary metabolites including ... | 2016 | 27166532 |
| toxicity of six plant extracts and two pyridone alkaloids from ricinus communis against the malaria vector anopheles gambiae. | the african malaria vector, anopheles gambiae s.s., is known to feed selectively on certain plants for sugar sources. however, the adaptive significance of this behaviour especially on how the extracts of such plants impact on the fitness of this vector has not been explored. this study determined the toxicity and larvicidal activity on this vector of extracts from six selected plants found in kenya and two compounds identified from ricinus communis: 3-carbonitrile-4-methoxy-n-methyl-2-pyridone ... | 2014 | 24996560 |
| effects of bidens pilosa l. var. radiata scherff treated with enzyme on histamine-induced contraction of guinea pig ileum and on histamine release from mast cells. | the medical mechanism against type i allergies is to block the release or production of chemical mediators from mast cells or to block the h(1)-receptor signaling. we previously reported that the anti-allergic action of the dry powder from bidens pilosa l. var. radiata scherff treated with the enzyme cellulosine (emmbp) was dependent on the inhibition of histamine release from mast cells. here, we investigate that the effect of fractions in emmbp on the histamine-induced contraction in guinea pi ... | 2009 | 19602852 |
| anti-diabetic properties of three common bidens pilosa variants in taiwan. | bidens pilosa l. var. radiata (bpr), b. pilosa l. var. pilosa (bpp), and b. pilosa l. var. minor (bpm) are common variants of a plant often used as a folk remedy for diabetes in taiwan. however, the three variants are often misidentified and little is known about their relative anti-diabetic efficacy and chemical composition. in this paper, we have first developed a method based on gc-ms and cluster analysis with visualization to assist in rapidly determining the taxonomy of these three bidens v ... | 2009 | 19683775 |
| an acqueous extract of bidens pilosa l. protects liver from cholestatic disease: experimental study in young rats. | to test the hepatoprotective effect of water extract from bidens pilosa l. (bpe) in cholestatic liver disease induced by ligature and resection of the common bile ducts (lrbd) in young rats. | 2009 | 19851686 |
| botryorhodines a-d, antifungal and cytotoxic depsidones from botryosphaeria rhodina, an endophyte of the medicinal plant bidens pilosa. | an endophytic fungus (botryosphaeria rhodina) was isolated from the stems of the medicinal plant bidens pilosa (asteraceae) that is known for its anti-inflammatory, antiseptic and antifungal effects. the ethyl acetate extract of the fungal isolate exhibits significant antifungal activity as well as potent cytotoxic and antiproliferative effects against several cancer cell lines. activity-guided fractionation resulted in the isolation of a complex of four depsidones, botryorhodines a-d and the au ... | 2010 | 19913264 |
| [identification characters of leaf venation of bidens pilosa with its confused herb bidens pilosa var. radiata]. | to study the leaf venation characteristics of bidens pilosa and b. pilosa var. radiata and establish an identification method. | 2009 | 20069891 |
| in vivo and in vitro effects of bidens pilosa l. (asteraceae) leaf aqueous and ethanol extracts on primed-oestrogenized rat uterine muscle. | bidens pilosa l. is an asteraceae growing in tropical zones, and traditionally utilized worldwide in herbal medicine. the present work is based on its traditional use during child birth as a labour facilitator. in vivo tests of acute toxicity showed a weak toxic effect for both extracts but the toxicity of the ethanol extract (ld(50)=6.15 g/kg) was upper than that of the aqueous extract (ld(50)=12.30 g/kg). the three-days uterotrophic assay on immature mice showed body weight gain followed by a ... | 2007 | 20162059 |
| control of the sticktight flea on chickens. | | 1946 | 20341280 |
| the invasive american weed parthenium hysterophorus can negatively impact malaria control in africa. | the direct negative effects of invasive plant species on agriculture and biodiversity are well known, but their indirect effects on human health, and particularly their interactions with disease-transmitting vectors, remains poorly explored. this study sought to investigate the impact of the invasive neotropical weed parthenium hysterophorus and its toxins on the survival and energy reserves of the malaria vector anopheles gambiae. in this study, we compared the fitness of an. gambiae fed on thr ... | 2015 | 26367123 |
| screening of medicinal plants against leishmania amazonensis. | leishmaniasis is a widespread tropical infection caused by different species of leishmania protozoa. there is no immunoprophylaxis (vaccination) available for leishmania infections and conventional treatments are unsatisfactory; therefore antileishmanial drugs are urgently needed. natural products are attractive due to their structural diversity. | 2010 | 20731558 |
| joyce after flaubert: the cuckold as imperfect physician, the writer as physiologist. | although joyce was not as familiar with the practice and theory of medicine as was gustave flaubert, this article argues that, through flaubert's legacy, joyce's writing was influenced by the french school of medical thought. several aspects of flaubert's style and narration-what has been dubbed his "medical realism"-were taken up by joyce: the artist's impersonal perspective, the precision of descriptions, and the materialist attack against romanticism, as well as the irony built into the narra ... | 2008 | 20836269 |
| anti-adult t-cell leukemia effects of bidens pilosa. | we evaluated the effects of bidens pilosa, a plant found in tropical and subtropical regions, and investigated the molecular pathways responsible for the anti-adult t-cell leukemia (atl) effect. water extracts of b. pilosa had growth suppressive effects on human t-cell leukemia virus type 1 (htlv-1)-infected t-cell lines and atl cells. b. pilosa extracts arrested cells in g1 cell cycle and induced apoptosis of htlv-1-infected t-cell lines. b. pilosa extracts inhibited also the phosphorylation of ... | 2011 | 21318218 |
| brazilian bidens pilosa linné yields fraction containing quercetin-derived flavonoid with free radical scavenger activity and hepatoprotective effects. | bidens pilosa is a plant used by amazonian and asian folks for some hepatopathies. the hydroethanol crude extract and three fractions were assessed for antioxidant and hepatoprotective effects. higher levels of scavenger activity on the 1,1-diphenyl-2-picrylhydrazyl radical, inhibition of deoxyribose oxidation and lipid peroxidation in vitro were detected for the ethyl acetate fraction (ic(50)~4.3-32.3 µg/ml) followed by the crude extract (ic(50)~14.2-98.0 µg/ml). the ethyl acetate fraction, aga ... | 2011 | 21526045 |
| uterine contraction induced by tanzanian plants used to induce abortion. | ethnopharmacological relevance: women in tanzania use plants to induce abortion. it is not known whether the plants have an effect. aims of study: collect data on plant use in relation to induced abortion and test the effect of plant extracts on uterine contraction. methods: during interviews with traditional birth attendants and nurses, plants were identified. cumulative doses of plant extracts were added to rat uterine tissue in an organ bath, and the force and frequency of contractions record ... | 2011 | 21645605 |
| field studies on dominant rodents and the efficacy of certain insecticides to their fleas in dakahlia governorate, egypt. | a preliminary survey of domestic rodent and the efficacy of bendiocarb, diazinon and pirimiphos-methyl insecticides to their fleas were carried out in dakahlia governorates (aga, meet-ghamr, el-senbellawen, temi el-amded, beni-abed, dekernes, nabarow, talkha, menia el-nasr and el-kordy). rodent index (number of rodent/trap) and percentage frequency of drodent species were recorded from october 2010 to may 2011. the main rodent species found were the norway rat, rattus norvegicus, the grey-bellie ... | 2011 | 21980770 |
| clinical and biochemical effects of a combination botanical product (clearguard) for allergy: a pilot randomized double-blind placebo-controlled trial. | botanical products are frequently used for treatment of nasal allergy. three of these substances, cinnamomum zeylanicum, malpighia glabra, and bidens pilosa, have been shown to have a number of anti-allergic properties in-vitro. the current study was conducted to determine the effects of these combined ingredients upon the nasal response to allergen challenge in patients with seasonal allergic rhinitis. | 2008 | 18625073 |
| behavioural response of the malaria vector anopheles gambiae to host plant volatiles and synthetic blends. | sugar feeding is critical for survival of malaria vectors and, although discriminative plant feeding previously has been shown to occur in anopheles gambiae s.s., little is known about the cues mediating attraction to these plants. in this study, we investigated the role of olfaction in an. gambiae discriminative feeding behaviour. | 2012 | 23069316 |
| biochemical changes in terminal root galls caused by an ectoparasitic nematode, longidorus africanus: amino acids. | the amino acids of terminal root galls caused by longidorus africanus on bur marigold (bidens tripartita l.) and grapevine (vitis vinifera l.) were studied. the galled roots of bur marigold contained 73% more cell-wall protein and 184% more free amino acids. the main changes among the free amino acids of the galled tissue were a large increase (1900%) in proline and a decrease in aspartic acid (56%) compared with the respective check tissue. hydroxyproline decreased in the wall protein fraction ... | 1971 | 19322388 |
| first records of two mealybug species in brazil and new potential pests of papaya and coffee. | five mealybug (hemiptera: pseudococcidae) plant pest species: dysmicoccus grassii (leonardi), ferrisia malvastra (mcdaniel), ferrisia virgata (cockerell), phenacoccus tucumanus granara de willink, and pseudococcus elisae borchsenius are recorded for the first time in the state of espírito santo, brazil. these are the first records of d. grassii in brazil, from papaya (carica papaya, caricaceae), and from coffee (coffea canephora, rubiaceae). ferrisia malvastra is also newly recorded in brazil, w ... | 2006 | 19537975 |
| in vitro screening antibacterial activity of bidens pilosa linné and annona crassiflora mart. against oxacillin resistant staphylococcus aureus (orsa) from the aerial environment at the dental clinic. | currently multiresistant staphylococcus aureus is one common cause of infections with high rates of morbidity and mortality worldwide, which directs scientific endeavors in search for novel antimicrobials. in this study, nine extracts from bidens pilosa (root, stem, flower and leaves) and annona crassiflora (rind fruit, stem, leaves, seed and pulp) were obtained with ethanol: water (7:3, v/v) and their in vitro antibacterial activity evaluated through both the agar diffusion and broth microdilut ... | 0 | 25076435 |
| essential oils from ugandan aromatic medicinal plants: chemical composition and growth inhibitory effects on oral pathogens. | the study assessed the growth inhibitory effects of essential oils extracted from ten ugandan medicinal plants (bidens pilosa, helichrysum odoratissimum, vernonia amygdalina, hoslundia opposita, ocimum gratissimum, cymbopogon citratus, cymbopogon nardus, teclea nobilis, zanthoxylum chalybeum, and lantana trifolia) used traditionally in the management of oral diseases against oral pathogens. chemical compositions of the oils were explored by gc-ms. inhibitory effects of the oils were assessed on ... | 2015 | 26170872 |
| cytopiloyne, a polyacetylenic glucoside from bidens pilosa, acts as a novel anticandidal agent via regulation of macrophages. | bidens pilosa, a tropical and sub-tropical herbal plant, is used as an ethnomedicine for bacterial infection or immune modulation in asia, america and africa. it has been demonstrated that cytopiloyne (cp), a bioactive polyacetylenic glucoside purified from b. pilosa, increases the percentage of macrophages in the spleen but the specific effects on macrophages remain unclear. | 2016 | 26924565 |
| effect of bidens pilosa on infection and drug resistance of eimeria in chickens. | extensive use of current anti-coccidial drugs together with drug resistance and residue has raised concerns about public health and poultry development. here, we studied the anti-coccidial properties of bidens pilosa. a phytochemical approach was developed for analysis of b. pilosa utilized as a feed additive. the protective effects of b. pilosa supplemented chicken diet were evaluated chickens infected with eimeria tenella. b. pilosa, at doses of 0.5%, 1% and 5% of the chicken diet, significant ... | 2015 | 25440995 |
| medicinal plants used by a mbyá-guarani tribe against infections: activity on kpc-producing isolates and biofilm-forming bacteria. | the traditional use of medicinal plants for treatment of infectious diseases by an indigenous mbyá-guarani tribe from south brazil was assessed by evaluating the antibiotic and antibiofilm activities against relevant bacterial pathogens. aqueous extracts from 10 medicinal plants were prepared according to indigenous mbyá-guarani traditional uses. to evaluate antibiotic (od600) and antibiofilm (crystal violet method) activities, pseudomonas aeruginosa atcc 27853, staphylococcus epidermidis atcc 3 ... | 2015 | 26749812 |
| biochemical changes in terminal root galls caused by an ectoparasitic nematode, longidorus africanus - nucleic acids. | changes in dna and rna in roots of bur marigold fed upon by longidorus africanus were studied using analytical methods, radioactive precursors, and analytical csc1 density-gradient centrifugation. the analyses showed that almost twice as much rna and dna was present in parasitized root tips as in those of nonparasitized control plants. studies on the rates of incorporation of labeled thymidine and uridine confirmed the dna levels determined by analytical methods, but revealed a much higher incor ... | 1974 | 19319364 |
| biochemical changes in terminal root galls caused by an ectoparasitic nematode, longidorus africanus: phenols, carbohydrates and cytokinins. | biochemical changes occurred in roots of bur marigold and grapevine infected with longidorus africanus. phenols of infected root tips differed quantitatively from those of healthy root tips (optical density of 0.68 and 0.32, respectively). column chromatography of the phenol extracts resulted in more fractions in the infected than in the healthy root extract. of the enzymes involved in phenol metabolism, three were tested. no polyphenol oxidase activity was detected and no difference in catalase ... | 1972 | 19319273 |
| bidens pilosa l. (asteraceae): botanical properties, traditional uses, phytochemistry, and pharmacology. | there are 230 to 240 known bidens species. among them, bidens pilosa is a representative perennial herb, globally distributed across temperate and tropical regions. b. pilosa has been traditionally used in foods and medicines without obvious adverse effects. despite significant progress in phytochemical and biological analyses of b. pilosa over the past few years, comprehensive and critical reviews of this plant are anachronistic or relatively limited in scope. the present review aims to summari ... | 2013 | 23935661 |
| inventory of antidiabetic plants in selected districts of lagos state, nigeria. | this study reports an ethnobotanical survey by means of semi-structured questionnaire of medicinal plants in five districts of lagos state of nigeria reputed for the treatment of diabetes. 100 respondents from the predominantly yoruba tribe mostly males (76%) were knowledgeable in traditional treatment of diabetes. about half of the respondents with 20-30 years experience in treating diabetes used mainly herbs (96%) and have developed effective and easily recognised diagnostic tools. 92% of diab ... | 2009 | 19013225 |
| a promising anticancer and antimalarial component from the leaves of bidens pilosa. | bidens pilosa is used in folk medicine for various applications due to the presence of polyacetylenes, flavonoids, terpenoids, phenylpropanoids and others. bioactivity-guided fractionation of different extracts of b. pilosa leaf showed potential in vitro anticancer and antimalarial activity and led to the identification of a potential marker compound, phenyl-1,3,5-heptatriyne. erythrocyte osmotic fragility experiments revealed the various extracts as well as the marker component's toxicity profi ... | 2009 | 19031368 |
| effects of drugs of plant origin on the development of the immune response. | the effects of extracts from licorice (glycyrrhisa glabra), great nettle (urtica dioica), common burdock (arctium lappa), and bur marigold (bidens tripartite) on the humoral and cellular immune response and nonspecific resistance in mice were studied. burdock and bur marigold extracts stimulated the humoral immune response, nettle and licorice extracts stimulated cellular response and nonspecific resistance, their effects being superior to those of pharmacopoeial echinacea purpurea tincture. | 2011 | 22238748 |
| experimental researches on acute toxicity of a bidens tripartita extract in mice - preliminary investigations. | plants take up an important place in traditional medicine and scientific research confirmed properties about their use as alternative therapy. bidens tripartita, commonly known as three-lobe beggarticks, three-part beggarticks, trifid bur-marigold, is a flowering plant in the genus bidens, family compositae, subfamily asteroideae. evaluation of the chemical composition of this plant has revealed the presence of flavonoids, xanthophylls, volatile oil, acetylene and polyacetylene, sterols, aurones ... | 2012 | 23700917 |
| target and non-target site mechanisms developed by glyphosate-resistant hairy beggarticks (bidens pilosa l.) populations from mexico. | in 2014 hairy beggarticks (bidens pilosa l.) has been identified as being glyphosate-resistant in citrus orchards from mexico. the target and non-target site mechanisms involved in the response to glyphosate of two resistant populations (r1 and r2) and one susceptible (s) were studied. experiments of dose-response, shikimic acid accumulation, uptake-translocation, enzyme activity and 5-enolpyruvyl shikimate-3-phosphate synthase (epsps) gene sequencing were carried out in each population. the r1 ... | 2016 | 27752259 |
| endogenous trans-zeatin content in plants with different metal-accumulating ability: a field survey. | a field survey was conducted to evaluate soil metal pollution and endogenous trans-zeatin content in the leaves of plants growing at six sites in a metal-polluted area located in gejiu, yunnan, china. five plant species were collected, and the physicochemical properties and concentrations of five metals in the soil were analyzed. the trans-zeatin content in plant leaves was measured by high-performance liquid chromatography. based on the nemerow pollution index, the six sites were classified int ... | 2016 | 27613625 |
| performance of bemisia tabaci (genn.) biotype b (hemiptera: aleyrodidae) on weeds. | bemisia tabaci (genn.) biotype b (hemiptera: aleyrodidae) is regarded as a pest with a large number of hosts, including crops and weeds. the performance of this whitefly on seven weeds was evaluated in order to identify the most suitable host. the following weeds that are very common in intense agricultural areas in the state of são paulo, brazil, were selected for this study: spurge (euphorbia heterophylla), beggarticks (bidens pilosa), red tasselflower (emilia sonchifolia), small-flower galins ... | 2014 | 27194066 |