143 research outputs found
Characterisation, potential toxicity and fate of storm water run-off from log storage areas of the Port of Tauranga.
Stormwater run-off from industrial sources can impact the receiving environment by the discharge of toxic substances, nutrients, sediments or fresh water (in marine environments). The Port of Tauranga is New Zealand’s largest by cargo volume with untreated logs being one of the major exports. The port stores logs totalling up to 300,000 m3 with an average residency time of 18 days. Runoff from log storage areas can cause toxicity to aquatic life due to low pH, high organic solids content and associated BOD, and chemicals leached from timber such as resin acids. Metals and PAH’s from heavy vehicles and other machinery can also be present.
At the port, stormwater collects from the storage areas into slot drains and is screened for larger particulates in screening chambers before discharging into Tauranga Harbour. Large rainfall events produce a visible, highly coloured plume extending across the main harbour channel.
This study looks at compounds within the stormwater runoff and associated marine water samples and the toxicology of the effluent. It then focusses on the gradients of compounds found in sediments and biota in relation to the main discharge sources. This is followed with a more specific investigation of the bioaccumulation of resin acids in resident and transplanted mussels. It concludes with a comparison of low intertidal species assemblages within and outside the influence of the stormwater plume.
Findings indicate that there are high levels of wood derived chemicals in the stormwater runoff and a gradient of quantities of these can be detected in nearby sediments, decreasing with distance from the discharge point of the effluent. Those compounds, such as metals, able to be quantified against national and international guidelines were well within acceptable levels. Others, such as resin acids, were found in lower quantities than in a previous study. A correlation between organics related to leachate from the logs, inorganic compounds found in the effluent and sediment grain size, indicates that some elements of the runoff may reach further into the harbour. The influence of dredging and disturbance of the seabed by shipping movements is considered in relation to this.
Levels of organic compounds, related to the log storage in transplanted mussel populations, were not detected spatially or temporally and no evidence of bio-accumulation of resin acids was found.
Based on the combined findings there are very low detectable effects on the marine environment from the runoff of the Port of Tauranga log storage areas. These come in the form of a gradient in chemical compounds related to the runoff and are well within the ANZECC (2000) Interim Guideline Levels.
This study adds to the limited knowledge on log storage runoff into the marine environment and incorporates elements which can be applied to many areas of research related to stormwater discharge. It uses the Port of Tauranga runoff as a relevant example of issues and environmental responses related to urban and industrial stormwater runoff
“No official help is available” - experience of parents and children with congenital heart disease during COVID-19
Introduction: the purpose was to explore the experience, information, support needs and decision-making of parents with congenital heart disease (CHD) during the COVID-19 crisis. Materials and methods: a survey study of parents of children with CHD, children and young people, capturing experiences, decision-making, information and support needs during the COVID-19 crisis. The survey launched for 1 month (9thApril 2020) during the first infection wave in the UK and subsequent restriction of free movement under lockdown rules from March 23rd2020 until May 31st2020. Results: 184 parents and 36 children/young people completed the survey. Parents were more likely to worry about the virus (86.4%) than children/young people (69.4%), whilst (89%) parents were more vigilant for symptoms of the virus vs. children/young people (69.4%). A thematic analysis of the qualitative comments covered 34 subthemes, forming eight-overarching themes: Virus 1)risk of infection, 2)information, guidance and advice, 3)change in health care provision, and 4)fears and anxieties; Lockdown and isolation 5)psychological and social impact, 6)keeping safe under lockdown, 7)provisions and dependence on others, 8)employment and income.Conclusions: there was widespread concern over the virus especially amongst parents. Parents and children/young people however, were frustrated with the lack of specific and paediatric focused information and guidance, expressing disappointment with the adult centric information available. Parents also felt alone, especially with their concerns around the implications of cardiac service suspension and the implication for their child’s health. In order to better support children and their families, resources need to be developed to address families’ and children/young people’s concerns for their health during this pandemic. <br/
A pilot investigation of the prevalence of US-detectable forefoot joint pathology and reported foot-related disability in participants with systemic lupus erythematosus
The main aim of this study was to determine the prevalence of US-detectable forefoot bursae, metatarsophalangeal (MTP) joint and metacarpophalangeal (MCP) joint synovial hypertrophy (SH), Power Doppler (PD) signal or erosion in participants with systemic lupus erythematosus (SLE). A secondary aim was to determine the strength of potential association between patient reported foot-related disability and US-detected forefoot bursae, MTP joint SH, PD signal or erosion in participants with SLE.A cross-sectional observational study of 20 participants with SLE was completed to determine the prevalence of US-detected forefoot bursal, MTP and MCP joint pathology. Patient-reported foot-related impairment and activity limitation (accumulatively referred to as disability) were also recorded. Spearmans' Rank Correlation analyses were completed to determine the potential strength of association between US-detected pathology and patient report disability.The prevalence of MTP joint SH and PD was 80 % (16/20) and 10 % (2/20), respectively. The prevalence of MCP joint SH and PD was 60 % (12/20) and 30 % (6/20) respectively. A significant association was noted between PD scores for the MTP joints and MCP joints (r = 0.556; p = 0.011) although this was not demonstrated for SH scores (r = 0.176; p = 0.459). Significant associations between forefoot bursal prevalence and MTP joint PD were noted (r = 0.467; p = 0.038). The prevalence of bursae and bursal PD (grade 2 or above) was 100 % (20/20) and 10 % (2/20), respectively. Moderate foot-related impairment and activity limitation was reported by 95 and 85 % of participants respectively.This pilot study suggests that US-detected MTP, MCP joint and forefoot bursal abnormalities may be prevalent in participants with SLE and they may experience a moderate level of foot-related disability. Further research is required to substantiate these preliminary findings
Impact of the COVID-19 pandemic on prescription refills for immune-mediated inflammatory disorders:a time series analysis (January 2019 to January 2021) using the English Prescribing Dataset
OBJECTIVE: To investigate monthly prescription refills for common immunosuppressive/immunomodulatory therapy (sulfasalazine, hydroxychloroquine, azathioprine, methotrexate, leflunomide) prescriptions in England during the complete first wave of the COVID-19 pandemic. Secondary analysis examined unit cost analysis and regional use. DESIGN AND SETTING: A national cohort of community-based, primary care patients who anonymously contribute data to the English Prescribing Dataset, dispensed in the community in England, were included. Descriptive statistics and interrupted time series analysis over 25 months (14 months before, 11 months after first lockdown) were evaluated (January 2019 to January 2021, with March 2020 as the cut-off point). OUTCOME MEASURES: Prescription reimbursement variance in period before the pandemic as compared with after the first lockdown. RESULTS: Fluctuation in monthly medicines use is noted in March 2020: a jump is observed for hydroxychloroquine (Mann-Whitney, SE 14.652, standardised test statistic 1.911, p value=0.059) over the study period. After the first lockdown, medicines use fluctuated, with wide confidence intervals. Unit-cost prices changed substantially: sulfasalazine 33% increase, hydroxychloroquine 98% increase, azathioprine 41% increase, methotrexate 41% increase, leflunomide 20% decrease. London showed the least quantity variance, suggesting more homogeneous prescribing and patient access compared with Midlands and East of England, suggesting that some patients may have received medication over/under requirement, representing potential resource misallocation and a proxy for adherence rates. Changepoint detection revealed four out of the five medicines’ use patterns changed with a strong signal only for sulfasalazine in March/April 2020. CONCLUSIONS: Findings potentially present lower rates of adherence because of the pandemic, suggesting barriers to care access. Unit price increases are likely to have severe budget impacts in the UK and potentially globally. Timely prescription refills for patients taking immunosuppressive/immunomodulatory therapies are recommended. Healthcare professionals should identify patients on these medicines and assess their prescription-day coverage, with planned actions to flag and follow-up adherence concerns in patients
Associations between body mass index and foot joint pain in middle-aged and older women: a retrospective analysis of a longitudinal cohort
Psychological stress, cognitive decline and the development of dementia in amnestic mild cognitive impairment
To determine the relationship between psychological stress with cognitive outcomes in a multi-centre longitudinal study of people with amnestic mild cognitive impairment (aMCI) we assessed three parameters of psychological stress (Recent Life Changes Questionnaire (RLCQ); the Perceived Stress Scale (PSS) and salivary cortisol) and their relationship with rates of cognitive decline over an 18 month follow up period and conversion to dementia over a 5.5 year period. In 133 aMCI and 68 cognitively intact participants the PSS score was higher in the aMCI compared with control group but neither the RLCQ scores nor salivary cortisol measures were different between groups. In the aMCI group the RLCQ and the PSS showed no significant association with cognitive function at baseline, cognitive decline or with conversion rates to dementia but high salivary cortisol levels were associated with RLCQ scores and poorer cognitive function at baseline and lower rates of cognitive decline. No relationship was found between salivary cortisol levels and conversion rate to dementia. We conclude that psychological stress as measured by the RLCQ or PSS was not associated with adverse cognitive outcomes in an aMCI population and hypothesise that this may reflect diminished cortisol production to psychological stress as the disease progresses.</p
Periodontitis and cognitive decline in Alzheimer's disease.
Periodontitis is common in the elderly and may become more common in Alzheimer's disease because of a reduced ability to take care of oral hygiene as the disease progresses. Elevated antibodies to periodontal bacteria are associated with an increased systemic pro-inflammatory state. Elsewhere raised serum pro-inflammatory cytokines have been associated with an increased rate of cognitive decline in Alzheimer's disease. We hypothesized that periodontitis would be associated with increased dementia severity and a more rapid cognitive decline in Alzheimer's disease. We aimed to determine if periodontitis in Alzheimer's disease is associated with both increased dementia severity and cognitive decline, and an increased systemic pro inflammatory state. In a six month observational cohort study 60 community dwelling participants with mild to moderate Alzheimer's Disease were cognitively assessed and a blood sample taken for systemic inflammatory markers. Dental health was assessed by a dental hygienist, blind to cognitive outcomes. All assessments were repeated at six months. The presence of periodontitis at baseline was not related to baseline cognitive state but was associated with a six fold increase in the rate of cognitive decline as assessed by the ADAS-cog over a six month follow up period. Periodontitis at baseline was associated with a relative increase in the pro-inflammatory state over the six month follow up period. Our data showed that periodontitis is associated with an increase in cognitive decline in Alzheimer's Disease, independent to baseline cognitive state, which may be mediated through effects on systemic inflammation
Specialist Respiratory Outreach : a case-finding initiative for identifying undiagnosed COPD in primary care
Acknowledgments This report is independent research funded by the National Institute for Health Research Wessex ARC. The views expressed in this publication are those of the author(s) and not necessarily those of the National Institute for Health Research or the Department of Health and Social Care. We are very grateful to Optimum Patient care and their team for their help and support with the data extraction and application of the case-finding risk score. We would also like to thank: The participants, Mark Stafford-Watson (PPI) in memorial, Colin Newell, Dr Fiona McKenna, Dr Andy Powell, Dr Helen Myers, Dr Stuart McKinnes, Dr Mark Williams, Dr Louisa Egbe, Dr Richard Baxter, Dr Sarah A’Court, Dr Elisabeth Willows, Dr Gareth Morris, Dr Ford, Dr Kate Lippiett, Wessex Clinical Research Network, West Hampshire CCG and Southampton City CCGPeer reviewedPublisher PD
Undertaking Studies Within A Trial to evaluate recruitment and retention strategies for randomised controlled trials : lessons learnt from the PROMETHEUS research programme
Funding: This award was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme (NIHR award ref: 13/55/80) and is published in full in Health Technology Assessment; Vol. 28, No. 2. See the NIHR Funding and Awards website for further award information.Peer reviewedPublisher PD
- …