80 research outputs found
The state of primate enrichment in Australasian zoos
Eleven Australasian zoos housing primates were included in a large international ‘captive mammal enrichment survey’. Individuals who directly work with, research and manage captive mammals were invited to participate in the survey which was comprised of three sections. The first section was designed to identify current enrichment practices and the factors that limit the quality and quantity of enrichment provided to captive mammals. The aim of the second section was to ascertain current methods used in the evaluation of enrichment and establish the factors that limit the frequency and quality of this evaluation. A third section was incorporated in the survey to determine respondents’ interest in potential applications of an automated enrichment system which is currently being designed to reduce many of the current limitations involved with implementing and evaluating enrichment. As expected, animals from the Primate order were most often provided with enrichment. However, the survey identified that lack of available staff time was the greatest factor limiting both the provision and evaluation of enrichment. Accordingly, the majority of survey respondents agreed that more enrichment would be provided if this was manageable. Overall, there was a very high level of interest from Australasian respondents in the applications of an automated enrichment system as a tool to provide and evaluate a greater quantity, variety and frequency of enrichment for captive mammals without requiring additional staff time
The Perceptions of Adult Patients Who Experience Needle Fear during Cosmetic Injections
AbstractAdult patients receiving cosmetic injections frequently experience needle fear symptoms which results in patient discomfort, suffering, and poor injection outcomes. The needle fear experience contributes to a decreased quality of life and possible avoidance behaviors involving other medical treatments requiring needles. Researchers have conducted quantitative studies which explored interventions on pain reduction but there are no qualitative studies from the perspectives of adults experiencing needle fear. The purpose of this research study was to explore the perceptions of needle fear in adult patients receiving cosmetic injections in a medical office setting. The interpretative phenomenological approach was used to provide an understanding of needle fear from the perspective of adult participants. Skinner’s theory of operant conditioning was the theoretical framework used to inform the study. Semistructured interviews were conducted with eight participants to answer the research question. Thematic analysis of the data resulted in four themes: (a) anticipation of the injection event, a build-up; (b) reinforcing elements on needle fear feelings; c) strategies and skills easing needle fear; and (d) needle fear experience and consequences. This original research contributes to awareness and understanding the needle fear phenomenon. Increased understanding by nursing providers supports positive social change by improving patient outcomes and quality of life; reducing patient suffering; and providing insight on patient avoidance behaviors involving other medical injections such as blood draws, vaccination, and treatment of chronic medical conditions
The Perceptions of Adult Patients Who Experience Needle Fear During Cosmetic Injections
Adult patients receiving cosmetic injections frequently experience needle fear symptoms which results in patient discomfort, suffering, and poor injection outcomes. The needle fear experience contributes to a decreased quality of life and possible avoidance behaviors involving other medical treatments requiring needles. Researchers have conducted quantitative studies which explored interventions on pain reduction but there are no qualitative studies from the perspectives of adults experiencing needle fear. The purpose of this research study was to explore the perceptions of needle fear in adult patients receiving cosmetic injections in a medical office setting. The interpretative phenomenological approach was used to provide an understanding of needle fear from the perspective of adult participants. Skinner’s theory of operant conditioning was the theoretical framework used to inform the study. Semistructured interviews were conducted with eight participants to answer the research question. Thematic analysis of the data resulted in four themes: (a) anticipation of the injection event, a build-up; (b) reinforcing elements on needle fear feelings; c) strategies and skills easing needle fear; and (d) needle fear experience and consequences. This original research contributes to awareness and understanding the needle fear phenomenon. Increased understanding by nursing providers supports positive social change by improving patient outcomes and quality of life; reducing patient suffering; and providing insight on patient avoidance behaviors involving other medical injections such as blood draws, vaccination, and treatment of chronic medical conditions
Deletions in VANGL1 are a risk factor for antibody-mediated kidney disease
We identify an intronic deletion in VANGL1 that predisposes to renal injury in high risk populations through a kidney-intrinsic process. Half of all SLE patients develop nephritis, yet the predisposing mechanisms to kidney damage remain poorly understood. There is limited evidence of genetic contribution to specific organ involvement in SLE.(1,2) We identify a large deletion in intron 7 of Van Gogh Like 1 (VANGL1), which associates with nephritis in SLE patients. The same deletion occurs at increased frequency in an indigenous population (Tiwi Islanders) with 10-fold higher rates of kidney disease compared with non-indigenous populations. Vangl1 hemizygosity in mice results in spontaneous IgA and IgG deposition within the glomerular mesangium in the absence of autoimmune nephritis. Serum transfer into B cell-deficient Vangl1(+/-) mice results in mesangial IgG deposition indicating that Ig deposits occur in a kidney-intrinsic fashion in the absence of Vangl1. These results suggest that Vangl1 acts in the kidney to prevent Ig deposits and its deficiency may trigger nephritis in individuals with SLE
An economic evaluation of Alexander Technique lessons or acupuncture sessions for patients with chronic neck pain : A randomized trial (ATLAS)
OBJECTIVES: To assess the cost-effectiveness of acupuncture and usual care, and Alexander Technique lessons and usual care, compared with usual GP care alone for chronic neck pain patients. METHODS: An economic evaluation was undertaken alongside the ATLAS trial, taking both NHS and wider societal viewpoints. Participants were offered up to twelve acupuncture sessions or twenty Alexander lessons (equivalent overall contact time). Costs were in pounds sterling. Effectiveness was measured using the generic EQ-5D to calculate quality adjusted life years (QALYs), as well as using a specific neck pain measure-the Northwick Park Neck Pain Questionnaire (NPQ). RESULTS: In the base case analysis, incremental QALY gains were 0.032 and 0.025 in the acupuncture and Alexander groups, respectively, in comparison to usual GP care, indicating moderate health benefits for both interventions. Incremental costs were £451 for acupuncture and £667 for Alexander, mainly driven by intervention costs. Acupuncture was likely to be cost-effective (ICER = £18,767/QALY bootstrapped 95% CI £4,426 to £74,562) and was robust to most sensitivity analyses. Alexander lessons were not cost-effective at the lower NICE threshold of £20,000/QALY (£25,101/QALY bootstrapped 95% CI -£150,208 to £248,697) but may be at £30,000/QALY, however, there was considerable statistical uncertainty in all tested scenarios. CONCLUSIONS: In comparison with usual care, acupuncture is likely to be cost-effective for chronic neck pain, whereas, largely due to higher intervention costs, Alexander lessons are unlikely to be cost-effective. However, there were high levels of missing data and further research is needed to assess the long-term cost-effectiveness of these interventions
Association between diabetes mellitus and active tuberculosis: A systematic review and meta-analysis.
The burgeoning epidemic of diabetes mellitus (DM) is one of the major global health challenges. We systematically reviewed the published literature to provide a summary estimate of the association between DM and active tuberculosis (TB). We searched Medline and EMBASE databases for studies reporting adjusted estimates on the TB-DM association published before December 22, 2015, with no restrictions on region and language. In the meta-analysis, adjusted estimates were pooled using a DerSimonian-Laird random-effects model, according to study design. Risk of bias assessment and sensitivity analyses were conducted. 44 eligible studies were included, which consisted of 58,468,404 subjects from 16 countries. Compared with non-DM patients, DM patients had 3.59-fold (95% confidence interval (CI) 2.25-5.73), 1.55-fold (95% CI 1.39-1.72), and 2.09-fold (95% CI 1.71-2.55) increased risk of active TB in four prospective, 16 retrospective, and 17 case-control studies, respectively. Country income level (3.16-fold in low/middle-vs. 1.73-fold in high-income countries), background TB incidence (2.05-fold in countries with >50 vs. 1.89-fold in countries with ≤50 TB cases per 100,000 person-year), and geographical region (2.44-fold in Asia vs. 1.71-fold in Europe and 1.73-fold in USA/Canada) affected appreciably the estimated association, but potential risk of bias, type of population (general versus clinical), and potential for duplicate data, did not. Microbiological ascertainment for TB (3.03-fold) and/or blood testing for DM (3.10-fold), as well as uncontrolled DM (3.30-fold), resulted in stronger estimated association. DM is associated with a two- to four-fold increased risk of active TB. The association was stronger when ascertainment was based on biological testing rather than medical records or self-report. The burgeoning DM epidemic could impact upon the achievements of the WHO "End TB Strategy" for reducing TB incidence
Polyunsaturated fatty acids for the primary and secondary prevention of cardiovascular disease
Background: Evidence on the health effects of total polyunsaturated fatty acids (PUFA) is equivocal. Fish oils are rich in omega-3 PUFA and plant oils in omega-6 PUFA. Evidence suggests increasing PUFA-rich foods, supplements or supplemented foods can reduce serum cholesterol, but may increase body weight, so overall cardiovascular effects are unclear. Objectives: To assess effects of increasing PUFA intake on cardiovascular disease (CVD) and all-cause mortality in adults. Search method: We searched CENTRAL, MEDLINE and Embase to April 2017 and ClinicalTrials.com and World Health Organization International Clinical Trials Registry Platform to September 2016, without language restrictions. We checked trials included in relevant systematic reviews. Selection criteria: We included randomised controlled trials (RCTs) comparing higher with lower PUFA intakes in adults with or without CVD that assessed effects over ≥12 months. We included full-text, abstracts, trials registry entries and unpublished data. Outcomes were all-cause mortality, CVD mortality and events, risk factors (blood lipids, adiposity, blood pressure), and adverse events. We excluded trials where we could not separate effects of PUFA intake from other dietary, lifestyle or medication interventions. Data collection and analysis: Two authors independently screened titles/abstracts, assessed trials for inclusion, extracted data, and assessed risk of bias. We wrote to authors of included studies for further data. Meta-analyses used random-effects analysis, sensitivity analyses included fixed-effects and limiting to low summary risk of bias. We assessed GRADE quality of evidence. Main result: We included 49 RCTs randomising 24,272 participants, with duration of one to eight years. Twelve included trials were at low summary risk of bias, 33 recruited participants without cardiovascular disease. Baseline PUFA intake was unclear in most trials, but 3.9% to 8% of total energy intake where reported. Most trials gave supplemental capsules, but eight gave dietary advice, eight gave supplemental foods such as nuts or margarine, and three used a combination of methods to increase PUFA. Increasing PUFA intake probably has little or no effect on all-cause mortality (risk 3.4% vs 3.3% in primary prevention, 11.7% vs 11.5% in secondary prevention, risk ratio (RR) 0.98, 95% confidence interval (CI) 0.89 to 1.07, 24 trials in 19290 participants), but probably reduces risk of CVD events from 5.8% to 4.9% in primary prevention, 23.3% to 20.8% in secondary prevention (RR 0.89, 95% CI 0.79 to 1.01, 20 trials in 17,073 participants), both moderate quality evidence. Increasing PUFA may reduce risk of CHD events from 13.4% to 7.1% primary prevention, 14.3% to 13.7% secondary prevention (RR 0.87, 95% CI 0.72 to 1.06, 15 trials, 10,076 participants), CHD death (5.2% to 4.4% primary prevention, 6.8% to 6.1% secondary prevention, RR 0.91, 95% CI 0.78 to 1.06, 9 trials, 8810 participants) and may slightly reduce stroke risk (2.1% to 1.5% primary prevention, RR 0.91, 95% CI 0.58 to 1.44, 11 trials, 14,742 participants), but has little or no effect on cardiovascular mortality (RR 1.02, 95% CI 0.82 to 1.26, I2 31%, 16 trials, 15,107 participants) all low quality evidence. Effects of increasing PUFA on major adverse cardiac and cerebrovascular events and atrial fibrillation are unclear as evidence is of very low quality. Event outcomes were all downgraded for indirectness, as most events occurred in men in westernised countries. Increasing PUFA intake reduces total cholesterol (MD -0.12 mmol/L, 95% CI -0.23 to -0.02, I2 79%, 8072 participants, 26 trials) and probably decreases triglycerides (TG, MD -0.12 mmol/L, 95% CI -0.20 to -0.04, I2 50%, 3905 participants, 20 trials), but has little or no effect on HDL (MD -0.01 mmol/L, 95% CI -0.02 to 0.01, I2 0%, 4674 participants, 18 trials) and LDL (MD -0.01 mmol/L, 95% CI -0.09 to 0.06, I2 44%, 3362 participants, 15 trials). Increasing PUFA probably causes slight weight gain (MD 0.76 kg, 95% CI 0.34 to 1.19, I2 59%, 7100 participants, 12 trials). Effects of increasing PUFA on serious adverse events such as pulmonary embolism and bleeding are unclear as the evidence is of very low quality. Authors' conclusions: Increasing PUFA intake probably reduces risk of CVD events, may reduce risk of CHD events and CHD mortality,and may slightly reduce stroke risk, but has little or no effect on all-cause or CVD mortality. The mechanism may be via lipid reduction, but increasing PUFA probably slightly increases weight
Global burden of 369 diseases and injuries in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019
Background: In an era of shifting global agendas and expanded emphasis on non-communicable diseases and injuries along with communicable diseases, sound evidence on trends by cause at the national level is essential. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) provides a systematic scientific assessment of published, publicly available, and contributed data on incidence, prevalence, and mortality for a mutually exclusive and collectively exhaustive list of diseases and injuries. Methods: GBD estimates incidence, prevalence, mortality, years of life lost (YLLs), years lived with disability (YLDs), and disability-adjusted life-years (DALYs) due to 369 diseases and injuries, for two sexes, and for 204 countries and territories. Input data were extracted from censuses, household surveys, civil registration and vital statistics, disease registries, health service use, air pollution monitors, satellite imaging, disease notifications, and other sources. Cause-specific death rates and cause fractions were calculated using the Cause of Death Ensemble model and spatiotemporal Gaussian process regression. Cause-specific deaths were adjusted to match the total all-cause deaths calculated as part of the GBD population, fertility, and mortality estimates. Deaths were multiplied by standard life expectancy at each age to calculate YLLs. A Bayesian meta-regression modelling tool, DisMod-MR 2.1, was used to ensure consistency between incidence, prevalence, remission, excess mortality, and cause-specific mortality for most causes. Prevalence estimates were multiplied by disability weights for mutually exclusive sequelae of diseases and injuries to calculate YLDs. We considered results in the context of the Socio-demographic Index (SDI), a composite indicator of income per capita, years of schooling, and fertility rate in females younger than 25 years. Uncertainty intervals (UIs) were generated for every metric using the 25th and 975th ordered 1000 draw values of the posterior distribution. Findings: Global health has steadily improved over the past 30 years as measured by age-standardised DALY rates. After taking into account population growth and ageing, the absolute number of DALYs has remained stable. Since 2010, the pace of decline in global age-standardised DALY rates has accelerated in age groups younger than 50 years compared with the 1990–2010 time period, with the greatest annualised rate of decline occurring in the 0–9-year age group. Six infectious diseases were among the top ten causes of DALYs in children younger than 10 years in 2019: lower respiratory infections (ranked second), diarrhoeal diseases (third), malaria (fifth), meningitis (sixth), whooping cough (ninth), and sexually transmitted infections (which, in this age group, is fully accounted for by congenital syphilis; ranked tenth). In adolescents aged 10–24 years, three injury causes were among the top causes of DALYs: road injuries (ranked first), self-harm (third), and interpersonal violence (fifth). Five of the causes that were in the top ten for ages 10–24 years were also in the top ten in the 25–49-year age group: road injuries (ranked first), HIV/AIDS (second), low back pain (fourth), headache disorders (fifth), and depressive disorders (sixth). In 2019, ischaemic heart disease and stroke were the top-ranked causes of DALYs in both the 50–74-year and 75-years-and-older age groups. Since 1990, there has been a marked shift towards a greater proportion of burden due to YLDs from non-communicable diseases and injuries. In 2019, there were 11 countries where non-communicable disease and injury YLDs constituted more than half of all disease burden. Decreases in age-standardised DALY rates have accelerated over the past decade in countries at the lower end of the SDI range, while improvements have started to stagnate or even reverse in countries with higher SDI. Interpretation: As disability becomes an increasingly large component of disease burden and a larger component of health expenditure, greater research and developm nt investment is needed to identify new, more effective intervention strategies. With a rapidly ageing global population, the demands on health services to deal with disabling outcomes, which increase with age, will require policy makers to anticipate these changes. The mix of universal and more geographically specific influences on health reinforces the need for regular reporting on population health in detail and by underlying cause to help decision makers to identify success stories of disease control to emulate, as well as opportunities to improve. Funding: Bill & Melinda Gates Foundation. © 2020 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 licens
Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950-2019 : a comprehensive demographic analysis for the Global Burden of Disease Study 2019
Background: Accurate and up-to-date assessment of demographic metrics is crucial for understanding a wide range of social, economic, and public health issues that affect populations worldwide. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019 produced updated and comprehensive demographic assessments of the key indicators of fertility, mortality, migration, and population for 204 countries and territories and selected subnational locations from 1950 to 2019.
Methods: 8078 country-years of vital registration and sample registration data, 938 surveys, 349 censuses, and 238 other sources were identified and used to estimate age-specific fertility. Spatiotemporal Gaussian process regression (ST-GPR) was used to generate age-specific fertility rates for 5-year age groups between ages 15 and 49 years. With extensions to age groups 10–14 and 50–54 years, the total fertility rate (TFR) was then aggregated using the estimated age-specific fertility between ages 10 and 54 years. 7417 sources were used for under-5 mortality estimation and 7355 for adult mortality. ST-GPR was used to synthesise data sources after correction for known biases. Adult mortality was measured as the probability of death between ages 15 and 60 years based on vital registration, sample registration, and sibling histories, and was also estimated using ST-GPR. HIV-free life tables were then estimated using estimates of under-5 and adult mortality rates using a relational model life table system created for GBD, which closely tracks observed age-specific mortality rates from complete vital registration when available. Independent estimates of HIV-specific mortality generated by an epidemiological analysis of HIV prevalence surveys and antenatal clinic serosurveillance and other sources were incorporated into the estimates in countries with large epidemics. Annual and single-year age estimates of net migration and population for each country and territory were generated using a Bayesian hierarchical cohort component model that analysed estimated age-specific fertility and mortality rates along with 1250 censuses and 747 population registry years. We classified location-years into seven categories on the basis of the natural rate of increase in population (calculated by subtracting the crude death rate from the crude birth rate) and the net migration rate. We computed healthy life expectancy (HALE) using years lived with disability (YLDs) per capita, life tables, and standard demographic methods. Uncertainty was propagated throughout the demographic estimation process, including fertility, mortality, and population, with 1000 draw-level estimates produced for each metric. Findings: The global TFR decreased from 2·72 (95% uncertainty interval [UI] 2·66–2·79) in 2000 to 2·31 (2·17–2·46) in 2019. Global annual livebirths increased from 134·5 million (131·5–137·8) in 2000 to a peak of 139·6 million (133·0–146·9) in 2016. Global livebirths then declined to 135·3 million (127·2–144·1) in 2019. Of the 204 countries and territories included in this study, in 2019, 102 had a TFR lower than 2·1, which is considered a good approximation of replacement-level fertility. All countries in sub-Saharan Africa had TFRs above replacement level in 2019 and accounted for 27·1% (95% UI 26·4–27·8) of global livebirths. Global life expectancy at birth increased from 67·2 years (95% UI 66·8–67·6) in 2000 to 73·5 years (72·8–74·3) in 2019. The total number of deaths increased from 50·7 million (49·5–51·9) in 2000 to 56·5 million (53·7–59·2) in 2019. Under-5 deaths declined from 9·6 million (9·1–10·3) in 2000 to 5·0 million (4·3–6·0) in 2019. Global population increased by 25·7%, from 6·2 billion (6·0–6·3) in 2000 to 7·7 billion (7·5–8·0) in 2019. In 2019, 34 countries had negative natural rates of increase; in 17 of these, the population declined because immigration was not sufficient to counteract the negative rate of decline. Globally, HALE increased from 58·6 years (56·1–60·8) in 2000 to 63·5 years (60·8–66·1) in 2019. HALE increased in 202 of 204 countries and territories between 2000 and 2019
Microchip-automated husbandry as enrichment for captive animals
Over the last three decades it has become increasingly evident that the use of environmental enrichment is a fundamental tool for improving the welfare of captive animals. Enrichment should be provided to captive animals: in altering frequencies, on an individual animal basis, delivered in different ways and its efficacy should be evaluated. The quality and quantity of enrichment provided to captive animals is often inversely proportional to the time that animal care staff have available, which is generally limited by a multitude of other husbandry duties requiring attention. The overarching premise of this thesis was the concept that electronically automating the provision of enrichment and other husbandry practices could potentially ameliorate this limitation. The electronic automation of enrichment practices could facilitate the provision of many different stimuli to captive animals: on an individual basis, over a wide and unpredictable timeframe, in the absence of animal care staff, while automatically generating measures of evaluation. Automated animal husbandry systems incorporating radiofrequency identification (RFID) microchips have been utilised in production animal industries since the 1970s. Microchips used to automate husbandry for production animals are mostly embedded within ear tags, and collars so they would not be ideal for animals housed on display in zoological facilities. Small implantable RFID microchips are routinely used to identify pets and captive animals so they would be a more appropriate tool for automation of husbandry procedures, such as enrichment. As such, the main objective of this study was to investigate the potential of these implantable microchips to automate enrichment for captive animals. Before exploring this possibility it was necessary to quantify current enrichment practices in zoos, and identify the factors that limit provision and evaluation of enrichment for captive animals. To obtain this information, an international multi-institutional survey of individuals working with captive mammals was conducted. The results showed that irrespective of the perceived importance of different types of enrichment, if they were particularly time consuming to provide they were not made available to captive mammals as frequently as those requiring less staff time. There was strong consensus from survey respondents that current enrichment practices should be improved without impinging on staff time, indirectly supporting the potential merit behind automated husbandry systems. The survey was also used to directly ascertain the level of industry support for the overall concept and applications of microchip-automated husbandry systems in zoos. Survey respondents expressed a very high level of interest in adopting automated husbandry systems, with potential applications considered beneficial to varying degrees. The applications considered most beneficial involved increasing the frequency and variety of different stimuli provided to captive mammals. Being able to dispense enrichment 24 hours a day was also considered highly beneficial, as was providing food, medication and enrichment in different compositions to individual mammals. The survey also highlighted constraints in terms of the financial cost as well as concerns about the reliability of the technology. Although these constraints are valid, technology is advancing rapidly with improved reliability and reduced cost such that automated husbandry should be increasingly viable. Having established a need and support for implantable microchip-automated husbandry for captive animals, the next phase was to develop and test a prototype microchip-automated device. A microchip-automated feeder was designed to dispense a single food item when initiated by the proximity of an RFID microchip implanted within an animal. This prototype was tested using five owl monkeys (Aotus spp.) implanted with RFID microchips. The monkeys were provided with the automated feeder for nine consecutive days and surveillance cameras were used to record their interactions with the device. Standard food rations were freely available, and the feeder contained dried fruit ‘treats’. The owl monkeys used the automated feeder 38 times. This demonstrates that enrichment of captive owl monkeys can be automated using implantable RFID microchips. Given the novelty of the technology used in this study, the enrichment potential of the microchip-automated feeder needed to be evaluated. The behaviours of the five owl monkeys provided with the prototype feeders were compared to the behaviours of five control owl monkeys in an adjacent enclosure provided with an externally identical but non-operational feeder. There were extreme differences in the behaviour of individual owl monkeys. It was unclear to what extent the operational automated feeder was enrichment given there were similar levels of interaction of the control animals with the non-operational feeder. Although further development of this technology is necessary before widespread adoption can occur, this thesis has revealed a need and support for automation of husbandry for captive mammals using implantable RFID microchips, and demonstrated proof-of-concept. This has important implications for the management of captive animals
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