623 research outputs found

    Die wit kerk en swart nood: Is daar nog sout in die soutpot oor? Opmerkings oor die betrokkenheid van die wit kerk by die MIV/Vigs pandemie in Suid-Afrika

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    The white church and black needs: Is there still salt left in the salt cellar? Remarks on the involvement of the white church with the HIV/Aids pandemic in South Africa. There are reasons why the churches in the white community of South Africa are not really concerned or involved in the HIV/Aids pandemic, which is primarily ravaging the Black community. This may, however, be regarded as the "shibolet" for the credibility of the church. The article emphasises the need for the (White) church to listen in three directions: to understand its own identity, to listen (again) to the will of the Lord, and to listen to the needs of the Black community (especially in terms of HIV/Aids). Then the church should become involved. This involvement must be above else in the local communities, in the practical ways, which are indicated, in the area of short-term help, but also empowerment and liberation

    High plasma leptin levels confer increased risk of atherosclerosis in women with systemic lupus erythematosus, and are associated with inflammatory oxidised lipids.

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    BackgroundPatients with systemic lupus erythematosus (SLE) are at increased risk of atherosclerosis, even after accounting for traditional risk factors. High levels of leptin and low levels of adiponectin are associated with both atherosclerosis and immunomodulatory functions in the general population.ObjectiveTo examine the association between these adipokines and subclinical atherosclerosis in SLE, and also with other known inflammatory biomarkers of atherosclerosis.MethodsCarotid ultrasonography was performed in 250 women with SLE and 122 controls. Plasma leptin and adiponectin levels were measured. Lipoprotein a (Lp(a)), oxidised phospholipids on apoB100 (OxPL/apoB100), paraoxonase, apoA-1 and inflammatory high-density lipoprotein (HDL) function were also assessed.ResultsLeptin levels were significantly higher in patients with SLE than in controls (23.7±28.0 vs 13.3±12.9 ng/ml, p<0.001). Leptin was also higher in the 43 patients with SLE with plaque than without plaque (36.4±32.3 vs 20.9±26.4 ng/ml, p=0.002). After multivariate analysis, the only significant factors associated with plaque in SLE were leptin levels in the highest quartile (≥29.5 ng/ml) (OR=2.8, p=0.03), proinflammatory HDL (piHDL) (OR=12.8, p<0.001), age (OR=1.1, p<0.001), tobacco use (OR=7.7, p=0.03) and hypertension (OR=3.0, p=0.01). Adiponectin levels were not significantly associated with plaque in our cohort. A significant correlation between leptin and piHDL function (p<0.001), Lp(a) (p=0.01) and OxPL/apoB100 (p=0.02) was also present.ConclusionsHigh leptin levels greatly increase the risk of subclinical atherosclerosis in SLE, and are also associated with an increase in inflammatory biomarkers of atherosclerosis such as piHDL, Lp(a) and OxPL/apoB100. High leptin levels may help to identify patients with SLE at risk of atherosclerosis

    predicted v. real prevalence of the 22q11.2 deletion syndrome in children with congenital heart disease presenting to Red Cross War Memorial Children’s Hospital, South Africa: A prospective study

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    Background. The 22q11.2 deletion syndrome (22qDS) has more than 180 associated phenotypic features, yet genotype-phenotype correlation remains obscure. Since many of the clinical characteristics are serious, yet treatable (including congenital heart disease), clinicians must maintain a high index of clinical suspicion to recognise a suite of co-occurring phenotypic features that suggest a diagnosis of 22qDS. Óskarsdottir’s scoring schedule (the ‘O score’) is generally used to suggest the need for confirmatory fluorescent in situ hybridisation (FISH) testing, using the TUPLE 1 probe. An O score of two or more indicates the need for FISH testing. Objectives. A previous audit of FISH-positive results of patients with congenital heart disease at Red Cross War Memorial Children’s Hospital (RCWMCH) revealed a clinical recognition rate of 1.7%. However, we were concerned that the syndrome may be under-recognised in our setting. Our aims were therefore to assess the predictive value of ‘O scoring’ and to accurately determine the prevalence of 22qDS in our patient population. Methods. A prospective trial of FISH testing every new patient with congenital heart disease presenting to RCWMCH was undertaken to accurately determine the prevalence of 22qDS. The results were then compared with the ability of the O score to indicate the need for FISH testing.Results. Testing of 125 patients detected deletions in six (4.8%, 2.8 times the previously determined clinical detection rate), thereby vindicating our concern that 22qDS is under-diagnosed. Of these 125 patients, 37 had an O score of 2 or 3, yet only 6 were FISH-positive, giving the O score a positive predictive value of only 14%. Conclusion. Until a more robust alternative recognition tool is available, South African clinicians should use all clinical recognition criteria liberally to suggest the need for formal testing for 22qDS

    Achieving population-level immunity to rabies in free-roaming dogs in Africa and Asia

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    Published onlineJournal ArticleResearch Support, Non-U.S. Gov'tCanine rabies can be effectively controlled by vaccination with readily available, high-quality vaccines. These vaccines should provide protection from challenge in healthy dogs, for the claimed period, for duration of immunity, which is often two or three years. It has been suggested that, in free-roaming dog populations where rabies is endemic, vaccine-induced protection may be compromised by immuno-suppression through malnutrition, infection and other stressors. This may reduce the proportion of dogs that seroconvert to the vaccine during vaccination campaigns and the duration of immunity of those dogs that seroconvert. Vaccination coverage may also be limited through insufficient vaccine delivery during vaccination campaigns and the loss of vaccinated individuals from populations through demographic processes. This is the first longitudinal study to evaluate temporal variations in rabies vaccine-induced serological responses, and factors associated with these variations, at the individual level in previously unvaccinated free-roaming dog populations. Individual-level serological and health-based data were collected from three cohorts of dogs in regions where rabies is endemic, one in South Africa and two in Indonesia. We found that the vast majority of dogs seroconverted to the vaccine; however, there was considerable variation in titres, partly attributable to illness and lactation at the time of vaccination. Furthermore, >70% of the dogs were vaccinated through community engagement and door-to-door vaccine delivery, even in Indonesia where the majority of the dogs needed to be caught by net on successive occasions for repeat blood sampling and vaccination. This demonstrates the feasibility of achieving population-level immunity in free-roaming dog populations in rabies-endemic regions. However, attrition of immune individuals through demographic processes and waning immunity necessitates repeat vaccination of populations within at least two years to ensure communities are protected from rabies. These findings support annual mass vaccination campaigns as the most effective means to control canine rabies.This study was funded by the International Fund for Animal Welfare (IFAW) http://www.ifaw.org/united-kingdom and the World Society for the Protection of Animals (WSPA) http://www.wspa.org.uk/, with support from the Charles Slater Fund and Jowett Fund. OR is supported by the Royal Society, and JLNW the Alborada Trust. JLNW, OR and ARF receive support from the Research and Policy for Infectious Disease Dynamics Program of the Science and Technology Directorate, Department of Homeland Security, Fogarty International Centre, National Institute of Health. DLH and ARF are supported by the U.K. Department for the Environment, Food and Rural Affairs project number SEV3500. TJM is supported by Biotechnology and Biological Sciences Research Council grant number BB/I012192/1. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

    Achieving population-level immunity to rabies in free-roaming dogs in Africa and Asia.

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    Canine rabies can be effectively controlled by vaccination with readily available, high-quality vaccines. These vaccines should provide protection from challenge in healthy dogs, for the claimed period, for duration of immunity, which is often two or three years. It has been suggested that, in free-roaming dog populations where rabies is endemic, vaccine-induced protection may be compromised by immuno-suppression through malnutrition, infection and other stressors. This may reduce the proportion of dogs that seroconvert to the vaccine during vaccination campaigns and the duration of immunity of those dogs that seroconvert. Vaccination coverage may also be limited through insufficient vaccine delivery during vaccination campaigns and the loss of vaccinated individuals from populations through demographic processes. This is the first longitudinal study to evaluate temporal variations in rabies vaccine-induced serological responses, and factors associated with these variations, at the individual level in previously unvaccinated free-roaming dog populations. Individual-level serological and health-based data were collected from three cohorts of dogs in regions where rabies is endemic, one in South Africa and two in Indonesia. We found that the vast majority of dogs seroconverted to the vaccine; however, there was considerable variation in titres, partly attributable to illness and lactation at the time of vaccination. Furthermore, >70% of the dogs were vaccinated through community engagement and door-to-door vaccine delivery, even in Indonesia where the majority of the dogs needed to be caught by net on successive occasions for repeat blood sampling and vaccination. This demonstrates the feasibility of achieving population-level immunity in free-roaming dog populations in rabies-endemic regions. However, attrition of immune individuals through demographic processes and waning immunity necessitates repeat vaccination of populations within at least two years to ensure communities are protected from rabies. These findings support annual mass vaccination campaigns as the most effective means to control canine rabies.This study was funded by the International Fund for Animal Welfare (IFAW) http://www.ifaw.org/united-kingdom and the World Society for the Protection of Animals (WSPA) http://www.wspa.org.uk/, with support from the Charles Slater Fund and Jowett Fund. OR is supported by the Royal Society, and JLNW the Alborada Trust. JLNW, OR and ARF receive support from the Research and Policy for Infectious Disease Dynamics Program of the Science and Technology Directorate, Department of Homeland Security, Fogarty International Centre, National Institute of Health. DLH and ARF are supported by the U.K. Department for the Environment, Food and Rural Affairs project number SEV3500. TJM is supported by Biotechnology and Biological Sciences Research Council grant number BB/I012192/1.This is the final version. It was first published by PLOS in PLOS Neglected Tropical Diseases at http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0003160

    Healthcare organisation and delivery for people with dementia and comorbidity: a qualitative study exploring the views of patients, carers and professionals

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    OBJECTIVES\textbf{OBJECTIVES}: People living with dementia (PLWD) have a high prevalence of comorbidty. The aim of this study was to explore the impact of dementia on access to non-dementia services and identify ways of improving service delivery for this population. DESIGN\textbf{DESIGN}: Qualitative study involving interviews and focus groups. Thematic content analysis was informed by theories of continuity of care and access to care. SETTING\textbf{SETTING}: Primary and secondary care in the South and North East of England. PARTICIPANTS\textbf{PARTICIPANTS}: PLWD who had 1 of the following comorbidities-diabetes, stroke, vision impairment, their family carers and healthcare professionals (HCPs) in the 3 conditions. RESULTS\textbf{RESULTS}: We recruited 28 community-dwelling PLWD, 33 family carers and 56 HCPs. Analysis resulted in 3 overarching themes: (1) family carers facilitate access to care and continuity of care, (2) the impact of the severity and presentation of dementia on management of comorbid conditions, (3) communication and collaboration across specialities and services is not dementia aware. We found examples of good practice, but these tended to be about the behaviour of individual practitioners rather than system-based approaches; current systems may unintentionally block access to care for PLWD. CONCLUSIONS\textbf{CONCLUSIONS}: This study suggests that, in order to improve access and continuity for PLWD and comorbidity, a significant change in the organisation of care is required which involves: coproduction of care where professionals, PLWD and family carers work in partnership; recognition of the way a patient's diagnosis of dementia affects the management of other long-term conditions; flexibility in services to ensure they are sensitive to the changing needs of PLWD and their family carers over time; and improved collaboration across specialities and organisations. Research is needed to develop interventions that support partnership working and tailoring of care for PLWD and comorbidity.This article presents independent research commissioned by the National Institute for Health Research (NIHR) under HS&DR (grant reference number 11/1017/07)

    A clinical and pathological description of 320 cases of naturally acquired Babesia rossi infection in dogs

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    Babesia rossi causes the most severe clinical disease in dogs of all the babesia parasites. We included 320 naturally-infected dogs that presented for care at the Onderstepoort Veterinary Academic Hospital between 2006 and 2016. All dogs had mono-infections confirmed by multiplex PCR. The data allowed more accurate clinical classification of the disease and identified parameters that were associated with disease severity and death. Odds ratios for dying were significant (P < 0.05) for increased band neutrophil count, collapse at presentation; presence of cerebral signs; hypoglycaemia; hyperlactatemia; high urea, high creatinine; hyperbilirubinaemia; hypercortisolaemia; and hypothyroxinaemia. Joint component analysis confirmed that the variables with significant odds ratios grouped together with death. Yet, multivariate logistic regression was unable to identify a group of significant independent predictors of death. Receiver Operator Characteristic curves indicated that low total thyroid hormone, high bilirubin, high serum urea and high cortisol concentrations were the variables with the highest sensitivity and specificity for death. These data provide both the clinician and researcher with a set of easily-measured laboratory and clinical assessments to classify cases into those that are uncomplicated and those that are complicated. The disease is complex and multisystemic and probably involves mechanisms more proximal in the pathogenesis than those that have been evaluated.The National Research Foundation (South Africa); Grant number CPRR13080726333.http://www.elsevier.com/locate/vetpar2020-07-01hj2020Companion Animal Clinical StudiesParaclinical SciencesProduction Animal Studie
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