Publications

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inactivation of strongyloides stercoralis filariform larvae in vitro by six jamaican plant extracts and three commercial anthelmintics.in vitro bioassay of (a) aqueous methanol extracts (ame) of the green leaves of mimosa (mimosa pudica), love weed (cuscuta americana), vervine (stachytarpheta jamaicensis), chicken weed (salvia serotina) and breadfruit (artocarpus altilis); (b) methanol-water fraction (mwf) of breadfruit leaves, and (c) commercially available drugs albendazole, thiabendazole and levamisole were assayed for nematode inactivating potential, using filariform larvae of strongyloides stercoralis. test larvae were obt ...19902082565
analysis of antidiarrhoeic effect of plants used in popular medicine.people customarily use the extracts of plants known to have antidiarrhoeal effects without any scientific base to explain the action of the extract. for this reason, an investigation was undertaken with a view to determining the efficacy of the effects of the brute aqueous extract (bae) of the leaves of psidium guajava (guava), stachytarpheta cayenensis (bastard vervain), polygonum punctatum (water smartweed), eugenia uniflora (brazil or surinam cherry) and aster squamatus (zé-da-silva) on the i ...19958734966
[pharmacological and chemical evaluation of stachytarpheta jamaicensis (verbenaceae)].after intraperitoneal administration of gradual aqueous doses obtained from stachytarpheta jamaicensis leaves, the following effects were observed in rats: a reduction of motor activity and the alarm reaction, ataxia, sedation, analgesia, anesthesia, ptosis, piloerection, head tremors and a significant reduction of body temperature of about 8.4 degrees c. robichaud's sign was present, probably due to some muscular relaxation. there were appreciable changes on respiration, with increment on ampli ...19969246359
screening of medicinal plants from trinidad and tobago for antimicrobial and insecticidal properties.antibacterial activity in 51 extracts from 29 plant species currently used in traditional medicine in trinidad and the neighbouring caribbean islands was tested for by the agar dilution streak method using six bacteria: escherichia coli, pseudomonas aeruginosa. salmonella tophimurium, staphylococcus aureus, staphylococcus epidermidis and enterococcus faecalis. the extracts from eight of the plants tested showed significant activity against one or more micro-organisms and the most susceptible bac ...199910363843
medicinal plants used for dogs in trinidad and tobago.this paper documents ethnoveterinary medicines used to treat dogs in trinidad and tobago. in 1995, a 4-stage process was used to conduct the research and document the ethnoveterinary practices. twenty-eight ethnoveterinary respondents were identified using the school-essay method, which is a modified rapid rural appraisal (rra) technique. semi-structured interviews were held with these respondents as well as with 30 veterinarians, 27 extension officers and 19 animal-health assistants and/or agri ...200010821961
comparative study of the assay of artemia salina l. and the estimate of the medium lethal dose (ld50 value) in mice, to determine oral acute toxicity of plant extracts.artemia salina l. (artemiidae), the brine shrimp larva, is an invertebrate used in the alternative test to determine toxicity of chemical and natural products. in this study the medium lethal concentrations (lc50 value) of 20 plant extracts, aloe vera (l.) burm. f. (aloeaceae), artemisia absinthium l. (asteraceae); citrus aurantium l. (rutaceae); cymbopogon citratus (dc. ex nees) stapf (poaceae); datura stramonium l. (solanaceae); justicia pectoralis jacq. (acanthaceae); musa x paradisiaca l. (m ...200111695884
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) ...200415013195
stachytarpheta leaf curl virus is a novel monopartite begomovirus species.begomovirus isolates were obtained from stachytarpheta jamaicensis plants showing leaf curl and chlorosis symptoms collected in the hainan province of china. the complete sequences of isolates hn5-4, hn6-1, hn30 and hn34 were determined to be 2748, 2751, 2748 and 2748 nucleotides long, respectively. the complete sequences of the four isolates share more than 94.9% nucleotide sequence identity, but all of them have less than 86% nucleotide sequence identity with other reported begomoviruses. the ...200515986176
antinociceptive and anti-inflammatory effects of stachytarpheta jamaicensis (l.) vahl (verbenaceae) in experimental animal models.the present study was carried out to explore the antinociceptive as well as the anti-inflammatory effects of an ethanol extract of stachytarpheta jamaicensis (l.) vahl (eesj) using 3 models of nociception and 2 models of inflammation in experimental animals.200919494533
an ethnobotanical survey of medicinal plants in trinidad.an ethnobotanical survey was conducted on the caribbean island of trinidad to identify medicinal plants commonly used in traditional medicine to treat a variety of medical conditions.201526369926
an ethnobotanical study of medicinal plants and traditional therapies on batan island, the philippines.we studied the local knowledge and uses of medicinal plants among the ivatan people of batan island by documenting their traditional practices.201323183086
inhibitory effects of leaf extracts of stachytarpheta jamaicensis (verbenaceae) on the respiratory burst of rat macrophages.the anti-oxidant effects of ethyl acetate (eace) and n-hexane extracts (nhe) of dried leaves of stachytarpheta jamaicensis vahl. (verbenaceae) on the reactive oxygen species (ros) generating during the respiratory burst of rat peritoneal macrophages were investigated. only eace, at concentrations between 0.4 and 40 microg/ml, inhibited the extracellular release of oxygen radicals by resident peritoneal macrophages stimulated with phorbol-12-myristate 13-acetate (pma). at concentrations above 40 ...200415287069
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