Implications of species addition and decline for nutrient dynamics in freshwaters.

In terrestrial and aquatic ecosystems, organisms directly affect nutrient storage and cycling by sequestering nutrients via growth and remineralizing nutrients via excretion and egestion. Therefore, species introductions and extirpations can profoundly affect nutrient storage and remineralization rates, and present a challenge for conserving ecosystem function in fresh waters. The literature of consumer-driven nutrient dynamics is growing rapidly, but studies of consumer effects on nutrient storage and remineralization across species and among ecosystems are limited. We compared the effects of 3 grazing taxa, nonnative armored catfish in Mexican streams, native mussels in Oklahoma streams, and native tadpoles in Panamanian streams, on nutrient storage and remineralization. We examined interactions among organismal stoichiometry and biomass, nutrient storage, remineralization rates, and ecosystem size across these 3 groups following species decline (tadpoles and mussels) or introduction (armored catfish) to gain a better understanding of organism-specific effects on nutrient dynamics among freshwater ecosystems. Collectively, our results suggest that the ecosystem-level effect of consumer-driven nutrient dynamics is strongly influenced by environmental variables and is taxon specific. Major changes in biomass of stoichiometrically distinctive organisms can lead to subsequent changes in the flux and storage of elements in an ecosystem, but the overall effect of aquatic animals on nutrient dynamics also is determined by discharge and nutrient-limitation patterns in streams and rivers

Roots-eye view: using microdialysis and microCT to non-destructively map root nutrient depletion and accumulation zones

Improvement in fertiliser use efficiency is a key aspect for achieving sustainable agriculture in order to minimise costs, greenhouse gas emissions and pollution from nutrient runoff. To optimise root architecture for nutrient uptake and efficiency we need to understand what the roots encounter in their environment. Traditional methods of nutrient sampling such as salt extractions can only be done at the end of an experiment, are impractical for sampling locations precisely and give total nutrient values which can overestimate the nutrients available to the roots. In contrast, microdialysis provides a non-invasive, continuous method for sampling available nutrients in the soil. Here for the first time we have used microCT imaging to position microdialysis probes at known distances from the roots and then measured the available nitrate and ammonium. We found that nitrate accumulated close to roots while ammonium was depleted demonstrating that this combination of complementary techniques provides a unique ability to measure root-available nutrients non-destructively and in almost real-time

Magazines as contradictory spaces for alcohol messaging: a mixed method content and thematic analysis of UK women’s magazine representations of alcohol and its consumption

BACKGROUND Women’s magazines provide a space in which gendered norms around alcohol-related practice are (re)-produced. They act as important points of reference for women to draw upon in their own understandings of alcohol use within their identity making. Studying the alcohol-related messages women’s magazines disseminate is therefore an important line of inquiry. METHODS An analysis of textual and visual alcohol depictions, including alcohol advertising, in 70 editions of 20 printed magazines targeted at and read by women, published between August 2020 and January 2021, was conducted using quantitative content and qualitative thematic analysis. RESULTS Women’s magazines have the potential to disseminate public health messages about the physical and mental health impacts of alcohol use, alcohol’s role in gender inequalities and the risk of harm from alcohol use by men. However, they do so in ways that reproduce harmful gender norms and expectations, and overlook the structural causes of alcohol-related harms. Associations between alcohol use and violence against women were simplified, in ways that ignored the root causes, produced victim-blaming narratives and deflected responsibility from the perpetrator to the effects of alcohol. Narratives around drinking and sobriety were underpinned by concerns over appearance, which reinforced social expectations of the ideal feminine body. Health narratives were in conflict with the presence of pro-alcohol messages such as consumption suggestions and alcohol advertising, which promoted alcohol use as a normalised aspect of women’s day to day lives. CONCLUSIONS Women receive a number of mixed and contradictory messages on alcohol use through their magazine readership, which places limits on magazines as educational sources of public health messaging

‘Sustaining masculinity’:a scoping review of anabolic androgenic steroid use by older males

In the past, research, policy and media have reported the use of anabolic androgenic steroids (AAS) primarily among younger males. However, recent studies have indicated the presence of an older cohort of men who use AAS in comparison to previous years. We carried out a scoping review of the extant literature to map and describe what is known about the use of AAS by older men (>40 years). A systematic search collected and analysed empirical research and grey literature relevant to the research question. Following application of inclusion and exclusion criteria, 44 studies were included which were subsequently charted and thematically analysed. The records included originated from the UK, USA, Canada, Australia, Slovenia, Norway, Spain, Turkey, Switzerland, Japan, and five global studies and were published between 1996 and 2021. Age ranged overall from 14 to 78 years old, however our review only discussed findings pertaining to those older than 40. Three main themes with subthemes were generated as follows: 1) Characteristics of AAS Use; Self-reported Adverse Effects from AAS Use; and Harms Diagnosed by Medical Professional. The review highlights the significant risks to hypothalamic-pituitary testicular function, cardiovascular health, and other organ systems as a result of the ageing man who is motivated to sustain masculine characteristics such as muscularity, youthfulness, sexual function, and perceived desirability and attractiveness. Future research is required to further understand the motivations of older men who use AAS. Furthermore, there is a need for age-specific research and recommendations to inform future policy and practice pertaining so that age-appropriate healthcare and policy decisions can be made in the future

4th International Conference - Sexuality and Cancer Breast Cancer

Breast cancer patients and the artists involved in the highly innovative ComMA research programme led an experiential workshop attended by 100 health professional delegates. The experiential workshop explained how patients and artists together explored sexual problems encountered following breast cancer treatment. This novel and highly collaborative approach empowered patients to use art and new forms of artistic expression as an alternative language to express and communicate their feelings of emotional and physical trauma using visual metaphors. ComMA enabled patients to explore and express their feelings through the use of collage, drawing on items such as gowns, which had a deep meaning in the context of their treatment, to enable them to express their feelings openly. Work co-produced by the artists and patients was shared at the workshop to challenge health professionals to understand the patients’ concerns, insecurities and difficulties in communicating their sexual and relationship problems

Options for basing Dietary Reference Intakes (DRIs) on chronic disease endpoints: report from a joint US-/Canadian-sponsored working group.

Dietary Reference Intakes (DRIs) are used in Canada and the United States in planning and assessing diets of apparently healthy individuals and population groups. The approaches used to establish DRIs on the basis of classical nutrient deficiencies and/or toxicities have worked well. However, it has proved to be more challenging to base DRI values on chronic disease endpoints; deviations from the traditional framework were often required, and in some cases, DRI values were not established for intakes that affected chronic disease outcomes despite evidence that supported a relation. The increasing proportions of elderly citizens, the growing prevalence of chronic diseases, and the persistently high prevalence of overweight and obesity, which predispose to chronic disease, highlight the importance of understanding the impact of nutrition on chronic disease prevention and control. A multidisciplinary working group sponsored by the Canadian and US government DRI steering committees met from November 2014 to April 2016 to identify options for addressing key scientific challenges encountered in the use of chronic disease endpoints to establish reference values. The working group focused on 3 key questions: 1) What are the important evidentiary challenges for selecting and using chronic disease endpoints in future DRI reviews, 2) what intake-response models can future DRI committees consider when using chronic disease endpoints, and 3) what are the arguments for and against continuing to include chronic disease endpoints in future DRI reviews? This report outlines the range of options identified by the working group for answering these key questions, as well as the strengths and weaknesses of each option

An open exploratory spirit? Ethnography at Cardiff 1974 - 2001

The strong tradition of ethnography at Cardiff, with its distinctive blend of symbolic interactionism and structuralism, and its empirical foci on occupational socialisation, education, health and sexualities, is chronicled

Antithymocyte Globulin Plus G-CSF Combination Therapy Leads to Sustained Immunomodulatory and Metabolic Effects in a Subset of Responders With Established Type 1 Diabetes.

Low-dose antithymocyte globulin (ATG) plus pegylated granulocyte colony-stimulating factor (G-CSF) preserves β-cell function for at least 12 months in type 1 diabetes. Herein, we describe metabolic and immunological parameters 24 months following treatment. Patients with established type 1 diabetes (duration 4-24 months) were randomized to ATG and pegylated G-CSF (ATG+G-CSF) (N = 17) or placebo (N = 8). Primary outcomes included C-peptide area under the curve (AUC) following a mixed-meal tolerance test (MMTT) and flow cytometry. "Responders" (12-month C-peptide ≥ baseline), "super responders" (24-month C-peptide ≥ baseline), and "nonresponders" (12-month C-peptide < baseline) were evaluated for biomarkers of outcome. At 24 months, MMTT-stimulated AUC C-peptide was not significantly different in ATG+G-CSF (0.49 nmol/L/min) versus placebo (0.29 nmol/L/min). Subjects treated with ATG+G-CSF demonstrated reduced CD4+ T cells and CD4+/CD8+ T-cell ratio and increased CD16+CD56hi natural killer cells (NK), CD4+ effector memory T cells (Tem), CD4+PD-1+ central memory T cells (Tcm), Tcm PD-1 expression, and neutrophils. FOXP3+Helios+ regulatory T cells (Treg) were elevated in ATG+G-CSF subjects at 6, 12, and 18 but not 24 months. Immunophenotyping identified differential HLA-DR expression on monocytes and NK and altered CXCR3 and PD-1 expression on T-cell subsets. As such, a group of metabolic and immunological responders was identified. A phase II study of ATG+G-CSF in patients with new-onset type 1 diabetes is ongoing and may support ATG+G-CSF as a prevention strategy in high-risk subjects

Cheshire Wirral Partnership - Research Conference

The presentation, experiential workshop and exhibition for 100 health practitioners took place at an annual event which shares good practice across the Cheshire Wirral Partnership (CWP) NHS Trust. The highly innovative ComMA research programme was nominated by CWP for a recognition award and shortlisted for the Outstanding Contribution to Research Development and Innovation. The presentation and experiential workshop explained how patients and artists together explored sexual problems encountered following cancer treatment. This novel and highly collaborative approach empowered patients to use art and new forms of artistic expression as an alternative language to express and communicate their feelings of emotional and physical trauma using visual metaphors. ComMA enabled patients to explore and express their feelings through the use of collage and drawing on items such as gowns, which had a deep meaning in the context of their treatment, to enable them to express their feelings and to seek appropriate support. Work co-produced by the artists and patients was shared at the workshop to allow health professionals to understand these issues from a patient’s perspective

Effects of media representations of drug related deaths on public stigma and support for harm reduction

Background Drug related deaths (DRD) are at historically high levels in the United Kingdom (UK), but some approaches that have the potential to reduce risk of mortality remain controversial. Public support makes an important contribution to drug policy development but there are high levels of public stigma towards people who use drugs (PWUD), and this is partly shaped by media representations. We investigated whether depiction of the characteristics of decedents represented in news articles about DRD was associated with differences in stigmatising attitudes and support for harm reduction policy. Methods We undertook a cross-sectional online study with a randomised design, conducted with a nationally representative sample (UK). Participants (N = 1280) were randomly presented with one of eight simulated news stories that reported on a DRD that differed with respect to drug (ecstasy or heroin), and the gender (male or female) and age (younger or older) of the decedent. Data were analysed using MANOVA. Results Data were obtained for 1248 participants (51.0% female; mean age 45.7±15.4). Stigma was higher towards depictions of male, older, and heroin deaths (all p < .001). Harm reduction support was higher in those participants seeing older compared to younger subjects (p = .035), and the older ecstasy decedent compared to younger decedent (p = .029). Conclusion Presentation of some types of DRD are associated with higher public stigma towards the decedent than others. Those groups developing agenda-setting activities designed to reduce stigma or foster public support for harm reduction policies should consider the different ways in which audiences may respond to the depiction and framing of DRD in news media