52 research outputs found

    Medicinal and ethnoveterinary remedies of hunters in Trinidad

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    BACKGROUND: Ethnomedicines are used by hunters for themselves and their hunting dogs in Trinidad. Plants are used for snakebites, scorpion stings, for injuries and mange of dogs and to facilitate hunting success. RESULTS: Plants used include Piper hispidum, Pithecelobium unguis-cati, Bauhinia excisa, Bauhinia cumanensis, Cecropia peltata, Aframomum melegueta, Aristolochia rugosa, Aristolochia trilobata, Jatropha curcas, Jatropha gossypifolia, Nicotiana tabacum, Vernonia scorpioides, Petiveria alliacea, Renealmia alpinia, Justicia secunda, Phyllanthus urinaria,Phyllanthus niruri,Momordica charantia, Xiphidium caeruleum, Ottonia ovata, Lepianthes peltata, Capsicum frutescens, Costus scaber, Dendropanax arboreus, Siparuma guianensis, Syngonium podophyllum, Monstera dubia, Solanum species, Eclipta prostrata, Spiranthes acaulis, Croton gossypifolius, Barleria lupulina, Cola nitida, Acrocomia ierensis (tentative ID). CONCLUSION: Plant use is based on odour, and plant morphological characteristics and is embedded in a complex cultural context based on indigenous Amerindian beliefs. It is suggested that the medicinal plants exerted a physiological action on the hunter or his dog. Some of the plants mentioned contain chemicals that may explain the ethnomedicinal and ethnoveterinary use. For instance some of the plants influence the immune system or are effective against internal and external parasites. Plant baths may contribute to the health and well being of the hunting dogs

    Family Patterns, Gender Relations

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    MS1 induces a spontaneous formation of free-floating insulin-positive PIs.

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    <p><b><i>A.</i></b> Light and phase contrast microscopy showing the formation of βTC3 PIs over 8 d. <b><i>B.</i></b> IF staining of βTC3 monolayers. Blue- DAPI, Red- Insulin and merge. <b><i>C.</i></b> 3-D reconstruction of z-stack confocal images of a representative PI. Blue- DAPI, Red- Insulin and merge.</p

    Col-IV and laminin are detected in and around the PI.

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    <p><b><i>A.</i></b> IF staining of MS1 cells. Blue-DAPI, Green-CD31, Red-BS1 and merge. White/Yellow represents double positive cells. <b><i>B.</i></b> RT-PCR for laminin β1 and col-IV in MS1, whole murine islet preps, and βTC3 cells. Laminin α1 and α2 were not detected (data not shown). <b><i>C.</i></b> IF staining of MS1 cells. Blue- DAPI, Green- col-IV, White-Laminin, and merge. <b><i>D.</i></b> 3-D reconstruction of z-stack imaging of an 8 d old PI. <b><i>E.</i></b> Non-consecutive z-stack confocal images of a PI. Blue- DAPI, Red- Insulin, Green- col-IV, White- laminin.</p

    Baseline and glucose stimulated insulin expression and secretion are enhanced in MS1-induced PIs.

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    <p><b><i>A.</i></b> FACS staining for proinsulin expression in monolayers (dotted line) and PIs (solid line). Grey histogram- isotype control. MFI: mono = 6579, PIs = 7486 <b><i>B.</i></b> Quantitative RT-PCR analysis of insulin 1 expression in βTC3 monolayers (closed bars) or PIs (opened bars). Data represents an average of 3 independent experiments. *<i>p<0.025</i>. Monolayers and PIs were cultured for 8 d, washed with media lacking glucose, and incubated with escalating glucose levels for 6 h. <b><i>C.</i></b> Insulin ELISA analysis of supernatant from βTC3 monolayers and PIs. Experiment represents three independent repeats. N = 3 per group. Two-way ANOVA analysis<b>.</b> <i><sup>†</sup>p<0.001, *p<0.0001.</i></p

    Evaluation of β cell loss in MS1-induced PIs.

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    <p><b><i>A.</i></b> FACS staining for 7-AAD viability dye of monolayers (dotted line) and PIs (solid line). Grey histogram unstained control. Black arrow show 7-AAD positive cells. <b><i>B.</i></b> Non-consecutive z-stack confocal images of a 14 d old PI. Blue- DAPI, Red- Insulin, Green- cleaved caspase-3. White arrows point to caspase-3 positive cells.</p
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