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  • 1
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In order to develop a microsatellite typing system for Lepeophtheirus salmonis (Krøyer), a DNA preparation method for individual sea lice suitable for analysis by polymerase chain reaction (PCR) was designed, and the DNA sequences of 50 L. salmonis microsatellite elements were determined. The microsatellites were composed of 60% perfect, 25% imperfect, and 15% compound repeats. Based on the flanking DNA sequences, four microsatellite-PCR assays were optimized and used in a pilot study to analyse L. salmonis samples collected in Ireland, Norway and Scotland. Two of the microsatellite-PCR assays targeted polymorphic loci amplifying seven and 10 alleles respectively. The results showed that microsatellite-PCR typing could detect genetic variation both within and between the L. salmonis groups, and also was capable of amplifying group-specific alleles.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The efficacy of cyclosporin in the management of ulcerative colitis is recognized. Not all patients respond to this treatment. Existing clinical and laboratory parameters are of little use in identifying those most likely to respond.〈section xml:id="abs1-2"〉〈title type="main"〉Aims:To determine whether in-vitro sensitivity to cyclosporin as measured by a lymphocyte proliferation assay is predictive of in-vivo response to therapy.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:The study comprised seven responders with ulcerative colitis, seven non-responders, and 14 healthy matched controls. A lymphocyte proliferation assay was carried out in the presence of a range of concentrations of cyclosporin and a dose–response curve constructed for each subject. The IC50 value, the concentration of cyclosporin that resulted in 50% inhibition of proliferation, was calculated for each subject. IC50 values for responders, non-responders and controls were compared using a Mann–Whitney test.〈section xml:id="abs1-4"〉〈title type="main"〉Results:There was a wide range of values obtained for the study group as a whole. IC50 values for non-responders were significantly higher than those of responders (P 〈 0.05).〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:There is a population-wide variation of in-vitro sensitivity to cyclosporin. This is reflected in in-vivo sensitivity as measured by clinical response to cyclosporin treatment. Future therapeutic strategies need to address this inherent variability of individual response to therapy.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 18 (2003), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background : Intravenous ciclosporin for acute, severe colitis is usually administered in a dose of 4 mg/kg/day, with concurrent intravenous steroids. This is associated with considerable morbidity. We have been using a low-dose regimen, most commonly without concurrent steroids, for seven years, and present the outcome.Methods : Records of all patients admitted for severe ulcerative colitis, treated by one physician over seven years, were reviewed.Results : Thirty-one patients received low-dose intravenous ciclosporin (2 mg/kg/day) for a median 8 days. Eleven early patients received concurrent intravenous corticosteroids. Three patients had hypertension requiring dose reduction, one elevated creatinine and one elevated liver enzymes (all transient), and four experienced infection (two arm cellulitis, one perianal abscess, one post-operative wound infection). Twenty-four patients (77%) avoided urgent colectomy, and were discharged on oral ciclosporin and azathioprine. After a median 18 months (range 3–77), 14 patients (45% of total) avoided colectomy, of whom eight had flares responding to medical therapy and two had persistent, mildly active disease.Conclusions : Low-dose intravenous ciclosporin (2 mg/kg/day), usually used as a monotherapy and followed by azathioprine, achieves similar long-term efficacy to higher dose ciclosporin combined with steroids in severe acute ulcerative colitis. Morbidity appears to be low.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Instruments and Methods 118 (1974), S. 583-587 
    ISSN: 0029-554X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
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  • 5
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    Oxford : Periodicals Archive Online (PAO)
    Music and letters. 9:3 (1928:July) 240 
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Biodiversity and conservation 8 (1999), S. 1707-1715 
    ISSN: 1572-9710
    Keywords: Ficus ; mutualism ; Pacific islands ; pollination ; seed dispersal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Fig trees (Ficus spp., Moraceae) are pollinated by species-specific fig wasps and have seeds that are mainly dispersed by fruit bats and birds. Consequently, they should be strongly dependent on mutualisms with animals for their reproductive success. As elsewhere in the Pacific, extinctions of potential seed dispersers have occurred on the islands in the southern Cook Islands archipelago. The abundance of the Pacific Banyan, Ficus prolixa, was found to be unrelated to the extent of potential seed disperser extinctions on different islands. There was no evidence of recruitment on Rarotonga, which has the most diverse bird and bat assemblage, and healthy populations on Mangaia, where all the native avian frugivores are extinct. Despite its very small population sizes on some of the islands, the trees pollinators are still present, showing that this mutualism has not yet been disrupted. Habitat loss, rather than a loss of mutualists, appears to be the main problem facing this species.
    Type of Medium: Electronic Resource
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