3,780 research outputs found

    Understanding attitudes toward the control of nonnative wild and feral mammals: similarities and differences in the opinions of the general public, animal protectionists, and conservationists in New Zealand (Aotearoa)

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    Lethal control is used extensively in New Zealand to control non-native non-human mammals. Respondents were surveyed about eight mammal groups considered to be pests and their attitudes towards their control and pest status. They also identified their most appropriate method of control for the eight different mammals. Information was gathered from three groups of respondents: animal protectionists, conservationists and the general public. Conservationists routinely rated all animal groups as more severe pests than the general public or animal protectionists, who provided the lowest scores. Rats, stoats, brushtail possums and rabbits were identified as the four most serious pests by all three groups. Conservationists were 5.7 and 2.6 times more likely to prefer a lethal method of control than protectionists and the general public respectively. For all three groups an increase in pest score for a given animal saw a decline in importance placed upon its welfare. This relationship was strong for the general public but weak for conservationists and animal protectionists. Understanding aspects of potentially opposing viewpoints may be invaluable in supporting the development of new welfare-focused control methods

    Characteristics of ex-racing greyhounds in New Zealand and their impact on re-homing

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    A small proportion of greyhounds surplus to the racing industry are entered into specialist rehoming organisations to be re-purposed as pets. Records of 835 greyhounds, from New Zealand Greyhounds as Pets (GAP), were used to investigate whether pre-adoption characteristics (age, sex, racing record, reason entered) and management factors (temperament test result, foster and trainer effects) had a bearing on rehoming success, and comparisons were made with shelter studies. Rehoming greyhounds as pets is very successful with 85.5% ultimately successfully rehomed. Only 2.9% fail as a result of failed adoptions, 11.6% fail the initial temperament test. Greyhounds were more likely than shelter dogs to pass an initial temperament test and be adopted, and less likely to be returned after 1 month. However, adopted greyhounds were just as likely as shelter dogs to be returned after 6 months. Logistic regression revealed the youngest age group (< 24 months old) were more likely to pass the initial temperament test than older greyhounds. This age effect was not detectable when the adoption success of dogs subsequently available for rehoming was considered, but a sex effect was evident with females more likely to be successfully adopted than males. Whether or not a dog had raced had no significant effect on the likelihood of successful rehoming. Greyhounds passing the temperament test with a basic pass, were less likely to be successfully rehomed than greyhounds scoring a higher pass indicative of lower prey drive. Further investigation of the validity and reliablity of the temperament test is warranted

    Bike share in Greater Manchester

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    Active travel offers cities opportunities to address vital challenges such as health, air quality and congestion. Bike share is increasingly evident in cities across the globe, whether in the more conventional docked form found in, for example, London and Paris or the newer dockless technology facilitated through smartphone apps. Such systems offer people a bike to use without the hassle of ownership or storage and, if they have their own bike, access to a bike to make journeys when they do not have it with them. They therefore promise to make cycling an option for a wider population and for more journeys. They offer to complete the elusive ‘last mile’ that can make public transport difficult and to help to make cycling a visible and attractive option for many. This report provides new evidence of experiences and perceptions of bike share in Greater Manchester. It explores whether, to what extent and in what forms bike share can contribute to an overall increase in the number of people cycling, the number of journeys they make and the health and environmental benefits that follow

    Veterinary provision of analgesia for domestic cats (Felis catus) undergoing gonadectomy: a comparison of samples from New Zealand, Australia and the United Kingdom

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    AIM: To compare the use and provision of analgesia to cats undergoing gonadectomy by a sample of veterinarians in New Zealand, Australia and the United Kingdom. METHODS: Small animal veterinarians’ views and practices on provision of analgesia to cats at three different time phases (pre/intra-operatively, post-operatively and post-discharge) were gathered using an electronic questionnaire. Respondents were also asked to state the pharmacological agent(s) used and the dosage rate(s). Differences in provision of analgesia were assessed relative to the respondent using binary logistic regression. The effects of sex of the patient and time of provision were explored using McNewar’s Test and Cochran’s Q respectively. Differences between drug types used amongst countries was tested using a cross-tabulation. RESULTS: There were 717 responses to the survey. Of these 249 (34.7%) were from New Zealand, 269 (37.5%) were from the UK and 199 (27.8%) from Australia. The prevalence of analgesia provision declined across the three different time phases for spaying and castration (both p<0.001). Provision of analgesia for castration was less than for spaying at each of the pre/intra-operative (p=0.002), post-operative (p<0.001) and after discharge (p<0.001) phases. Post-operative provision of analgesia following both castration (p<0.001) and spaying (p<0.001) differed amongst countries of practice. Veterinarians in Australia and New Zealand were more likely to provide post-operative analgesia for both castration and spaying than those from the UK (p<0.001). Veterinarians from the UK more commonly used non-steroidal anti-inflammatory drugs (NSAID) in the pre/intra-operative phase (p<0.001) than veterinarians from either New Zealand or Australia. CONCLUSIONS AND CLINICAL RELEVANCE: Contemporary use of analgesics for cats appears focused on provision at clinic and may not address the effects of surgery beyond the first 24 hours. The UK, Australia and New Zealand clearly differ in the types of analgesia administered, possibly reflecting differing professional considerations of the risks associated with the use of NSAID. In the interests of animal welfare, pain relief should perhaps be provided or offered more frequently for owner administration

    Expression of Ki-67 and Bcl-2 in gastric epithelial cells: role of antralization in gastric carcinogenesis

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    Horizontal DNA transfer mechanisms of bacteria as weapons of intragenomic conflict

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    Horizontal DNA transfer (HDT) is a pervasive mechanism of diversification in many microbial species, but its primary evolutionary role remains controversial. Much recent research has emphasised the adaptive benefit of acquiring novel DNA, but here we argue instead that intragenomic conflict provides a coherent framework for understanding the evolutionary origins of HDT. To test this hypothesis, we developed a mathematical model of a clonally descended bacterial population undergoing HDT through transmission of mobile genetic elements (MGEs) and genetic transformation. Including the known bias of transformation toward the acquisition of shorter alleles into the model suggested it could be an effective means of counteracting the spread of MGEs. Both constitutive and transient competence for transformation were found to provide an effective defence against parasitic MGEs; transient competence could also be effective at permitting the selective spread of MGEs conferring a benefit on their host bacterium. The coordination of transient competence with cell-cell killing, observed in multiple species, was found to result in synergistic blocking of MGE transmission through releasing genomic DNA for homologous recombination while simultaneously reducing horizontal MGE spread by lowering the local cell density. To evaluate the feasibility of the functions suggested by the modelling analysis, we analysed genomic data from longitudinal sampling of individuals carrying Streptococcus pneumoniae. This revealed the frequent within-host coexistence of clonally descended cells that differed in their MGE infection status, a necessary condition for the proposed mechanism to operate. Additionally, we found multiple examples of MGEs inhibiting transformation through integrative disruption of genes encoding the competence machinery across many species, providing evidence of an ongoing "arms race." Reduced rates of transformation have also been observed in cells infected by MGEs that reduce the concentration of extracellular DNA through secretion of DNases. Simulations predicted that either mechanism of limiting transformation would benefit individual MGEs, but also that this tactic's effectiveness was limited by competition with other MGEs coinfecting the same cell. A further observed behaviour we hypothesised to reduce elimination by transformation was MGE activation when cells become competent. Our model predicted that this response was effective at counteracting transformation independently of competing MGEs. Therefore, this framework is able to explain both common properties of MGEs, and the seemingly paradoxical bacterial behaviours of transformation and cell-cell killing within clonally related populations, as the consequences of intragenomic conflict between self-replicating chromosomes and parasitic MGEs. The antagonistic nature of the different mechanisms of HDT over short timescales means their contribution to bacterial evolution is likely to be substantially greater than previously appreciated

    Impact of Structural and Metabolic Variations on the Toxicity and Carcinogenicity of Hydroxy- and Alkoxy-Substituted Allyl- and Propenylbenzenes

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    The metabolic fate of a compound is determined by numerous factors including its chemical structure. Although the metabolic options for a variety of functional groups are well understood and can often provide a rationale for the comparison of toxicity based on structural analogy, at times quite minor structural variations may have major consequences for metabolic outcomes and toxicity. In this perspective, the effects of structural variations on metabolic outcomes is detailed for a group of related hydroxy- and alkoxy-substituted allyl- and propenylbenzenes. These classes of compounds are naturally occurring constituents of a variety of botanical-based food items. The classes vary from one another by the presence or absence of alkylation of their para-hydroxyl substituents and/or the position of the double bond in the alkyl side chain. We provide an overview of how these subtle structural variations alter the metabolism of these important food-borne compounds, ultimately influencing their toxicity, particularly their DNA reactivity and carcinogenic potential. The data reveal that detailed knowledge of the consequences of subtle structural variations for metabolism is essential for adequate comparison of structurally related chemicals. Taken together, it is concluded that predictions in toxicological risk assessment should not be performed on the basis of structural analogy only but should include an analogy of metabolic pathways across compounds and species

    Foraging effort and prey choice in cape gannets

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    In order to test the hypothesis that sardine Sardinops sagax are the preferred prey of Cape gannets Morus capensis, the link between foraging effort and prey choice was evaluated by simultaneously monitoring theactivity and the diet of adult birds attending chicks at Bird Island, Algoa Bay, South Africa. Foraging trip durations were bimodally distributed. Most foraging trips of Cape gannets were completed within 24 h. Metered gannets spent c. 40% of this time flying. In all, nine prey species were recovered from the stomachs of metered birds. The diet was dominated by the commercially important sardine Sardinops sagax and anchovy Engraulis capensis. Food mass intake by foraging Cape gannets was not correlated with foraging trip duration or time flying, consistent with a patchy distribution of food. Cape gannets returning with sardine tended to have shorter foraging trips and spent significantly less time flying than birds returning with other prey, thereby maximizing net energy intake. Sardine seem to be the preferred (most profitable) prey and, consequently, their relative proportion in gannetstomachs may reflect their absolute availability at spatial scales equivalent to the bird’s foraging range

    Neonatal-onset multisystem inflammatory disease responsive to interleukin-1 beta inhibition

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    BACKGROUND:Neonatal-onset multisystem inflammatory disease is characterized by fever, urticarial rash, aseptic meningitis, deforming arthropathy, hearing loss, and mental retardation. Many patients have mutations in the cold-induced autoinflammatory syndrome 1 (CIAS1) gene, encoding cryopyrin, a protein that regulates inflammation.METHODS:We selected 18 patients with neonatal-onset multisystem inflammatory disease (12 with identifiable CIAS1 mutations) to receive anakinra, an interleukin-1-receptor antagonist (1 to 2 mg per kilogram of body weight per day subcutaneously). In 11 patients, anakinra was withdrawn at three months until a flare occurred. The primary end points included changes in scores in a daily diary of symptoms, serum levels of amyloid A and C-reactive protein, and the erythrocyte sedimentation rate from baseline to month 3 and from month 3 until a disease flare.RESULTS:All 18 patients had a rapid response to anakinra, with disappearance of rash. Diary scores improved (P<0.001) and serum amyloid A (from a median of 174 mg to 8 mg per liter), C-reactive protein (from a median of 5.29 mg to 0.34 mg per deciliter), and the erythrocyte sedimentation rate decreased at month 3 (all P<0.001), and remained low at month 6. Magnetic resonance imaging showed improvement in cochlear and leptomeningeal lesions as compared with baseline. Withdrawal of anakinra uniformly resulted in relapse within days; retreatment led to rapid improvement. There were no drug-related serious adverse events.CONCLUSIONS:Daily injections of anakinra markedly improved clinical and laboratory manifestations in patients with neonatal-onset multisystem inflammatory disease, with or without CIAS1 mutations

    Demography and disorders of German Shepherd Dogs under primary veterinarycare in the UK

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    The German Shepherd Dog (GSD) has been widely used for a variety of working roles. However, concerns for the health and welfare of the GSD have been widely aired and there is evidence that breed numbers are now in decline in the UK. Accurate demographic and disorder data could assist with breeding and clinical prioritisation. The VetCompassTM Programme collects clinical data on dogs under primary veterinary care in the UK. This study included all VetCompassTM dogs under veterinary care during 2013. Demographic, mortality and clinical diagnosis data on GSDs were extracted and reported
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