195 research outputs found

    PREVALENCE OF MULTIPLE ADDICTIONS AND CURRENT TREATMENT BY DRUG TREATMENT CENTRES IN DURBAN, SOUTH AFRICA

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    Substance-use disorders (SUD) cause severe problems both globally and locally. Research suggests that multiple addictions create a more complex illness. This study investigated whether in-patients admitted for SUD at three drug treatment centres in Durban, South Africa had other, undiagnosed addictions. It utilised a three-phase concurrent mixed-methods design and initially screened for gambling and sex addiction. Results showed that, of the sample of 123 participants, 54% had either sex or gambling and 24% had both addictions which current treatment programmes neither assessed for nor treated. Recommendations include suggestions to update current assessment and treatment approaches and the need to train professional staff at drug treatment centres

    An exploration of the phenomena of multiple addictions and addiction interaction disorder in Durban, South Africa.

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    Ph.D. University of KwaZulu-Natal, Durban 2013.Addiction to drugs is a widely acknowledged problem in South Africa. Newer developments in the study of addiction include behaviours such as gambling and sex as part of a broader syndrome. International research has established that most people with one addiction are at risk for co-occurring addictions which are frequently undiagnosed and untreated. Multiple addictions (MA) have been shown to combine in specific patterns to produce addiction interaction disorder (AID) resulting in a more complex, treatment- resistant illness. This was the first study South Africa to investigate if people with substance use disorders had other addictions. The research had three aims: to establish if in-patients admitted to three drug rehabilitation centres had other addictions, to investigate the extent of the MA and AID and to determine whether the treatment programmes managed them appropriately. The study employed the mixed methods research design and was located at three in-patient facilities in Durban, KwaZulu-Natal. During the first phase, discussion groups were held with professionals that explored their perceptions of MA, AID and current treatment programmes. The second phase involved a survey of 123 participants screened for poly-substance abuse, sex (including internet) addiction and problem gambling. The third phase utilised in-depth interviews with 25 participants displaying MA to understand the development of addiction, AID and treatment received. The data were analysed utilising descriptive and statistical analysis for the survey data, and thematic analysis for the in-depth interviews and discussion groups. The study found a high incidence of MA within the survey population of 54%; 37% of participants tested positive or at risk for problem gambling and 41% tested positive for sex addiction with 24% of the participants being positive for both. In-depth interviews revealed high rates of trauma, especially for the female participants and demonstrated the complex interrelationship between addictions. AID was identified in all 25 participants. In KwaZulu- Natal, it appears that MA and AID are currently not being assessed or treated. The study highlights the need for a broader conceptualisation of addiction which would improve current assessment and treatment and has implications for further training of professionals and addiction policy in South Africa

    Orbital Dimer Model for Spin-Glass State in Y2_2Mo2_2O7_7

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    The formation of a spin glass usually requires both structural disorder and frustrated magnetic interactions. Consequently, the origin of spin-glass behaviour in Y2_2Mo2_2O7_7 - in which magnetic Mo4+^{4+} ions occupy a frustrated pyrochlore lattice with minimal compositional disorder - has been a longstanding question. Here, we use neutron and X-ray pair-distribution function (PDF) analysis to develop a disorder model that resolves apparent incompatibilities between previously-reported PDF, EXAFS and NMR studies and provides a new and physical mechanism for spin-glass formation. We show that Mo4+^{4+} ions displace according to a local "2-in/2-out" rule on each Mo4_4 tetrahedron, driven by orbital dimerisation of Jahn-Teller active Mo4+^{4+} ions. Long-range orbital order is prevented by the macroscopic degeneracy of dimer coverings permitted by the pyrochlore lattice. Cooperative O2^{2-} displacements yield a distribution of Mo-O-Mo angles, which in turn introduces disorder into magnetic interactions. Our study demonstrates experimentally how frustration of atomic displacements can assume the role of compositional disorder in driving a spin-glass transition.Comment: 6 pages, 3 figure

    Mild autonomic dysfunction in primary Sjögren's syndrome: a controlled study

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    Introduction The aim of this study was to compare cardiovascular autonomic nervous system function in patients with primary Sjögren's syndrome (pSS) with that in control individuals, and to correlate the findings with autonomic symptoms and the presence of exocrine secretory dysfunction. Methods Twenty-seven female patients with pSS and 25 control individuals completed the COMPASS (Composite Autonomic Symptom Scale) self-reported autonomic symptom questionnaire. Beat-to-beat heart rate and blood pressure data in response to five standard cardiovascular reflex tests were digitally recorded using a noninvasive finger pressure cuff and heart rate variability was analyzed by Fourier spectral analysis. Analysis was performed by analysis of variance (ANOVA), multivariate ANOVA and repeated measures ANOVA, as indicated. Factor analysis was utilized to detect relationships between positive autonomic symptoms in pSS patients. Results Multiple, mild autonomic disturbances were observed in pSS patients relating to decreased heart rate variability, decreased blood pressure variability and increased heart rate, which were most evident in response to postural change. There was a strong trend toward an association between decreased heart rate variability and increased severity of the secretomotor, orthostatic, bladder, gastroparesis and constipation self-reported autonomic symptom cluster identified in pSS patients. This symptom cluster was also associated with fatigue and reduced unstimulated salivary flow, and therefore may be an important component of the clinical spectrum of this disease. Conclusion There was evidence of mild autonomic dysfunction in pSS as measured with both cardiovascular reflex testing and self-reported symptoms. Pathogenic autoantibodies targeting M3 muscarinic receptors remain a strong candidate for the underlying pathophysiology, but practical assays for the detection of this autoantibody remain elusive.Fin ZJ Cai, Sue Lester, Tim Lu, Helen Keen, Karyn Boundy, Susanna M Proudman, Anne Tonkin and Maureen Rischmuelle

    Measurement of abnormal bone composition in vivo using noninvasive Raman spectroscopy

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    X-ray-based diagnostic techniques, which are by far the most widely used for diagnosing bone disorders and diseases, are largely blind to the protein component of bone. Bone proteins are important because they determine certain mechanical properties of bone and changes in the proteins have been associated with a number of bone diseases. Spatially Offset Raman Spectroscopy (SORS) is a chemically specific analytical technique that can be used to retrieve information noninvasively from both the mineral and protein phases of the bone material in vivo. Here we demonstrate that SORS can be used to detect a known compositional abnormality in the bones of a patient suffering from the genetic bone disorder, osteogenesis imperfecta, a condition which affects collagen. The confirmation of the principle that bone diseases in living patients can be detected noninvasively using SORS points the way to larger studies that focus on osteoporosis and other chronic debilitating bone diseases with large socioeconomic burdens

    Is it feasible to conduct a randomised controlled trial of pretransplant exercise (prehabilitation) for patients with multiple myeloma awaiting autologous haematopoietic stem cell transplantation? Protocol for the PREeMPT study

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    Introduction While myeloma is an incurable malignancy, developments in disease management have led to increased life expectancy in recent years. Treatment typically involves stem-cell transplantation. Increased survival rates equate to more patients living with the burden of both the disease and its treatment for increasing number of years, rendering myeloma a long-term condition. Evidence exists to demonstrate the benefits of exercise for patients recovering from stem-cell transplantation, and prehabilitation—exercise before treatment—has been shown to be effective in other disease areas. To date there has been no research into prehabilitation in patients with myeloma awaiting transplantation treatment. Our objective is to determine whether it is feasible to conduct a randomised controlled trial into pretransplant exercise for patients with multiple myeloma who are awaiting autologous stem-cell transplantation. Methods and analysis This mixed methods study identifies patients with diagnosis of multiple myeloma who have been assigned to the autologous transplantation list and invites them to participate in six weekly sessions of individualised, supervised exercise while awaiting transplantation. Quantitative data to determine feasibility targets include rates of recruitment, adherence and adverse events, and outcome measures including 6 min walking distance test and quality of life. Qualitative interviews are undertaken with a purposive sample of patients to capture their experiences of the study and the intervention. Ethics and dissemination Ethics committee approval has been obtained. Dissemination will be through open-access publications and presentations and will seek to reach multiprofessional bases as well as patients and carer groups, addressing the widespread interest in this area of research. Trial registration number NCT03135925; Pre-results

    Validation of a diagnosis-agnostic symptom questionnaire for asthma and/or COPD

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    ACKNOWLEDGEMENTS The authors wish to acknowledge the work of the NOVELTY study investigators, who are listed in full in the supplementary material, and Sharon MacLachlan (Evidera, London, UK), who participated in the analysis of sections of the data. Medical writing support, under the direction of the authors, was provided by Lauren McNally, MSci, CMC Connect, McCann Health Medical Communications, and was funded by AstraZeneca, Cambridge, UK, in accordance with Good Publication Practice (GPP3) guidelines (Ann Intern Med 2015; 163: 461–464). Support statement: The NOVELTY study is funded by AstraZenecaPeer reviewedPublisher PD

    The Lantern Vol. 21, No. 2, Spring 1953

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    • Package from the Past • Objective Abstraction No. 1 • The Streetlamp • Journey Home • Rendezvous • The Admonition • Easter Thought • Summer Thought • The Understanders • Nocturne • Night and the City • Study in Shadow • Southern Mountain Song • The Introvert • Conflict • A Moment in Flight • Hiatus • Night Search • To a Cat • Lines to a Rejected Contributor • The Old Professorhttps://digitalcommons.ursinus.edu/lantern/1059/thumbnail.jp

    Risk of a major adverse cardiovascular event (MACE) following first-ever hospitalisation for acute gout: a Western Australian population-level linked data study.

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    Objectives Cardiovascular disease is the largest contributor of increased mortality in patients with gout.  Acute inflammation as seen with gout attacks may have a mechanistic role in developing Major Adverse Cardiovascular Events (MACE).  We examined the temporal relationship between admission to hospital with acute gout and MACE. Approach Linked inpatient and mortality data from the Western Australian Rheumatic Disease Epidemiology Registry were used.  We identified patients with an incident acute gout (index) hospitalisation and admission or death records due to MACE (composite of acute coronary syndrome, stroke, heart failure, cardiovascular death).  The risk of MACE during the index post-discharge period (1-30 days after index admission) and control period (365 days prior to index admission and 365 days post-discharge) was determined using a self-controlled case-series (SCCS) design.  Conditional fixed-effects Poisson regression was used to obtain incidence rate ratios (IRR).  Sensitivity analyses were performed excluding deaths and 180-day events. Results We identified 962 patients (mean age=76.2 years [SD=12.2]; 66.8% male) with incident acute gout admission and documented MACE during the control and/or index post-discharge periods.   917 (95.3%) patients experienced MACE during the control period and 114 (11.9%) during the index post-discharge period.  The rate of MACE during the control and post-discharge periods were 0.84 and 1.44 events per person-year, respectively, with an IRR=1.67 (95% CI: 1.38-2.02) for the post-discharge period compared with the control period from regression analysis.  Sensitivity analyses excluding deaths and 180-day events were IRR=1.68 (95% CI=1.29-2.20) and IRR=1.66 (95% CI=1.34-2.07) respectively. Conclusion Our self-controlled case-series study using linked administrative data found an increased risk of MACE during the 30 days after discharge for index gout hospitalisation.  This suggests a temporal association between acute inflammation and MACE
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