26
|
Thornton C, Moss N, Wilkinson S. P183 Benefit of home sampling in the early detection of Pseudomonas aeruginosa in children with cystic fibrosis. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30477-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
27
|
Callaway LK, McIntyre HD, Barrett HL, Foxcroft K, Tremellen A, Lingwood BE, Tobin JM, Wilkinson S, Kothari A, Morrison M, O'Rourke P, Pelecanos A, Dekker Nitert M. Probiotics for the Prevention of Gestational Diabetes Mellitus in Overweight and Obese Women: Findings From the SPRING Double-Blind Randomized Controlled Trial. Diabetes Care 2019; 42:364-371. [PMID: 30659070 DOI: 10.2337/dc18-2248] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/17/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Given the role of gut microbiota in regulating metabolism, probiotics administered during pregnancy might prevent gestational diabetes mellitus (GDM). This question has not previously been studied in high-risk overweight and obese pregnant women. We aimed to determine whether probiotics (Lactobacillus rhamnosus and Bifidobacterium animalis subspecies lactis) administered from the second trimester in overweight and obese women prevent GDM as assessed by an oral glucose tolerance test (OGTT) at 28 weeks' gestation. Secondary outcomes included maternal and neonatal complications, maternal blood pressure and BMI, and infant body composition. RESEARCH DESIGN AND METHODS This was a double-blind randomized controlled trial of probiotic versus placebo in overweight and obese pregnant women in Brisbane, Australia. RESULTS The study was completed in 411 women. GDM occurred in 12.3% (25 of 204) in the placebo arm and 18.4% (38 of 207) in the probiotics arm (P = 0.10). At OGTT, mean fasting glucose was higher in women randomized to probiotics (79.3 mg/dL) compared with placebo (77.5 mg/dL) (P = 0.049). One- and two-hour glucose measures were similar. Preeclampsia occurred in 9.2% of women randomized to probiotics compared with 4.9% in the placebo arm (P = 0.09). Excessive weight gain occurred in 32.5% of women in the probiotics arm (55 of 169) compared with 46% in the placebo arm (81 of 176) (P = 0.01). Rates of small for gestational age (<10th percentile) were 2.4% in the probiotics arm (5 of 205) and 6.5% in the placebo arm (13 of 199) (P = 0.042). There were no differences in other secondary outcomes. CONCLUSIONS The probiotics used in this study did not prevent GDM in overweight and obese pregnant women.
Collapse
|
28
|
Wilkinson S, Beckmann M, Donaldson E, McCray S. Implementation of gestational weight gain guidelines - what's more effective for ensuring weight recording in pregnancy? BMC Pregnancy Childbirth 2019; 19:19. [PMID: 30744580 PMCID: PMC6371612 DOI: 10.1186/s12884-018-2162-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 12/21/2018] [Indexed: 11/22/2022] Open
Abstract
Background Pregnant women who gain weight in accordance with guidelines have the lowest risk of pregnancy and birth-related complications. However, evidence-practice gaps often exist. To address pregnancy weight management barriers, a stepped implementation science approach was used, comprising targeted in-services, provision of scales for clinic rooms, and changes to routine weight recording in a hospital electronic medical record. The aim of this study was to assess the cumulative influence of evidence-based interventions on staff’s compliance to recording of antenatal weights. Methods Retrospective data analysis of weight recording over three 15-month cohorts across April 2014–December 2017. Variables calculated from data included: proportion of women with weight recorded at booking and proportion of women who had a weight recorded at each visit. Generalised estimating equation modelling was used to examine differences in weight recording compliance rates between cohorts, pre-pregnancy body mass index categories, model of care and clinicians. Results There were approximately 13,000 pregnancies in each cohort. The proportion of women who had a weight recorded at each visit per cohort differed significantly between cohorts from 4.2% (baseline), 18.9% (scales and in-services) to 61.8% (medical record prompts), p < 0.001. Conclusion Significant improvements were achieved through systematic barrier analysis and subsequent mapping and implementation of appropriate and effective interventions. Improvements were observed across the entire service, in all models of care with all professional groups demonstrating increased recording of weights.
Collapse
|
29
|
Jones BP, Williams NJ, Saso S, Thum M, Quiroga I, Yazbek J, Wilkinson S, Ghaem‐Maghami S, Thomas P, Smith JR. Uterine transplantation in transgender women. BJOG 2019; 126:152-156. [PMID: 30125449 PMCID: PMC6492192 DOI: 10.1111/1471-0528.15438] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2018] [Indexed: 11/28/2022]
|
30
|
Candy B, Armstrong M, Amey R, Booth J, Flemming K, Kupeli N, Maclean V, Preston J, Stone P, Wilkinson S. 9 Using what people value to develop new interventions in palliative care: a multilevel level review approach. BMJ Support Palliat Care 2018. [DOI: 10.1136/bmjspcare-2018-mariecurie.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
IntroductionComplex interventions are common in palliative care (PC) but are difficult to evaluate. Complementary therapies (CT) are one type of widely-used complex intervention for which there is inconclusive evidence. No systematic review has been conducted in PC of trials or of qualitative studies of patients’ views of CTs. There are novel approaches with established exemplars of using both types of reviews to help develop more clinically appropriate interventions. These approaches are in their infancy in PC research and have much to offer the specialism.AimsUsing our on-going review on CT we present as an exemplar in PC an approach to draw together the findings of trials and qualitative studies in a data table (matrix) to contrast what patients value and want with how the intervention is tested.MethodsWe sought trials on the effectiveness of CT and qualitative studies on patients’ perspectives about these therapies. Our primary outcomes for trials included anxiety. Eight databases were searched in 2017. Citations and full-text papers were reviewed to identify relevant studies. Meta-analyses pooled trial data where appropriate and a thematic synthesis is being undertaken to understand patient experience. These findings will be combined in a matrix to explore similarities and differences.Results19 trials and five qualitative studies were included. Data analysis and development of the matrix which includes intervention content and patients’ needs is currently underway. We will present the final matrix framework.ConclusionsOur approach demonstrates a potential way in PC to enhance development of practice appropriate complex interventions.
Collapse
|
31
|
Pang T, Fatseas G, Koina M, Adamson S, Wilkinson S, Chan-Ling T. Glioblastoma multiforme overcomes ultrasmall superparamagnetic iron oxide nanoparticle induced cytotoxicity through heat shock protein protective mechanisms. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx657.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
32
|
Wong L, Kontogeorgis A, Brett L, Edwards M, Wilkinson S, Ware J, Morris-Rosendahl D, Homfray T, Till J. 61Prevalence and spectrum of genetic variants in a single-centre cohort of Brugada syndrome. Europace 2017. [DOI: 10.1093/europace/eux283.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
33
|
Wilkinson S, McMahon M. P67 Strategies supporting and increasing hepatitis C testing and treatment for people in NSW prisons. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30808-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
34
|
Wilkinson S, McMahon M. P68 Hep Connect: delivering one-to-one telephone support to people undergoing HCV treatment by people who have treatment experience. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30809-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
35
|
Jose K, Venn A, Nelson M, Howes F, Wilkinson S, Ezzy D. A qualitative study of the role of Australian general practitioners in the surgical management of obesity. Clin Obes 2017; 7:231-238. [PMID: 28429583 DOI: 10.1111/cob.12195] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/26/2017] [Accepted: 03/22/2017] [Indexed: 11/26/2022]
Abstract
General practitioners (GPs) are increasingly managing patients with class 2 and 3 obesity (body mass index [BMI] > 35 and 40 kg/m2 , respectively). Bariatric surgery is considered for patients with class 2 obesity and comorbidities or class 3 obesity where sustained weight loss using non-surgical interventions has not been achieved. In Australia, GPs facilitate access to surgery through referral processes, but the nature of GP involvement in bariatric pre- and post-surgery care is currently unclear. This qualitative study involved 10 in-depth interviews with GPs and 20 interviews with adults who had all undergone laparoscopic adjustable gastric banding (LAGB) for weight management in Tasmania, Australia. Interviews were transcribed and analysed thematically. Referrals for bariatric surgery commonly occurred at the patient's request or to manage comorbidity. Consistent with previous studies, for GPs, referral patterns were influenced by previous case experience and patients' financial considerations. Accessibility of surgery was also a consideration. Post-surgery, there was a lack of clarity about the role of GPs, with patients generally preferring the surgical team to manage the LAGB. In bariatric surgery, patient preference for surgery, access and comorbidity are key drivers for referral and post-surgical monitoring and support. Greater role clarity and enhanced collaboration between surgeons, GPs and patients following surgery is likely to enhance the experience and outcomes for patients.
Collapse
|
36
|
Scales K, Pollock K, Travers C, Perry-Young L, Wilkinson S, Manning N, Schneider J. EMPOWERMENT IN HOME CARE FOR PERSONS WITH DEMENTIA: IMPLICATIONS FOR PERSON-CENTERED CARE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
37
|
Travers C, Pollock K, Scales K, Perry-Young L, Wilkinson S, Manning N, Schneider J. CLOSE ENCOUNTERS OF THE CARING KIND: EXAMINING EVERYDAY EXPERIENCES OF HOME CARE USING STAFF DIARIES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
38
|
Pollock K, Scales K, Travers C, Perry-Young L, Wilkinson S, Manning N, Schneider J. TACT AND DUPLICITY IN INTERPERSONAL RELATIONS BETWEEN PAID HOME CAREGIVERS AND THEIR CLIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
39
|
Wilkinson S, Bishop SC, Allen AR, McBride SH, Skuce RA, Bermingham M, Woolliams JA, Glass EJ. Fine-mapping host genetic variation underlying outcomes to Mycobacterium bovis infection in dairy cows. BMC Genomics 2017; 18:477. [PMID: 28646863 PMCID: PMC5483290 DOI: 10.1186/s12864-017-3836-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 05/31/2017] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Susceptibility to Mycobacterium bovis infection in cattle is governed in part by host genetics. However, cattle diagnosed as infected with M. bovis display varying signs of pathology. The variation in host response to infection could represent a continuum since time of exposure or distinct outcomes due to differing pathogen handling. The relationships between host genetics and variation in host response and pathological sequelae following M. bovis infection were explored by genotyping 1966 Holstein-Friesian dairy cows at 538,231 SNPs with three distinct phenotypes. These were: single intradermal cervical comparative tuberculin (SICCT) test positives with visible lesions (VLs), SICCT-positives with undetected visible lesions (NVLs) and matched controls SICCT-negative on multiple occasions. RESULTS Regional heritability mapping identified three loci associated with the NVL phenotype on chromosomes 17, 22 and 23, distinct to the region on chromosome 13 associated with the VL phenotype. The region on chromosome 23 was at genome-wide significance and candidate genes overlapping the mapped window included members of the bovine leukocyte antigen class IIb region, a complex known for its role in immunity and disease resistance. Chromosome heritability analysis attributed variance to six and thirteen chromosomes for the VL and NVL phenotypes, respectively, and four of these chromosomes were found to explain a proportion of the phenotypic variation for both the VL and NVL phenotype. By grouping the M. bovis outcomes (VLs and NVLs) variance was attributed to nine chromosomes. When contrasting the two M. bovis infection outcomes (VLs vs NVLs) nine chromosomes were found to harbour heritable variation. Regardless of the case phenotype under investigation, chromosome heritability did not exceed 8% indicating that the genetic control of bTB resistance consists of variants of small to moderate effect situated across many chromosomes of the bovine genome. CONCLUSIONS These findings suggest the host genetics of M. bovis infection outcomes is governed by distinct and overlapping genetic variants. Thus, variation in the pathology of M. bovis infected cattle may be partly genetically determined and indicative of different host responses or pathogen handling. There may be at least three distinct outcomes following M. bovis exposure in dairy cattle: resistance to infection, infection resulting in pathology or no detectable pathology.
Collapse
|
40
|
Ostroff R, Wilkinson S, Sanacora G. Computer-assisted cognitive behavior therapy to prevent relapse following electroconvulsive therapy. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
41
|
Sharman MJ, Venn AJ, Jose KA, Williams D, Hensher M, Palmer AJ, Wilkinson S, Ezzy D. The support needs of patients waiting for publicly funded bariatric surgery - implications for health service planners. Clin Obes 2017; 7:46-53. [PMID: 27976522 DOI: 10.1111/cob.12169] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/18/2016] [Accepted: 11/03/2016] [Indexed: 12/31/2022]
Abstract
The objective of this study was to investigate the experience of waiting for publicly funded bariatric surgery in an Australian tertiary healthcare setting. Focus groups and individual interviews involving people waiting for or who had undergone publicly funded bariatric surgery were audio-recorded, transcribed and analysed thematically. A total of 11 women and 6 men engaged in one of six focus groups in 2014, and an additional 10 women and 9 men were interviewed in 2015. Mean age was 53 years (range 23-66); mean waiting time was 6 years (range 0-12), and mean time since surgery was 4 years (range 0-11). Waiting was commonly reported as emotionally challenging (e.g. frustrating, depressing, stressful) and often associated with weight gain (despite weight-loss attempts) and deteriorating physical health (e.g. development of new or worsening obesity-related comorbidity or decline in mobility) or psychological health (e.g. development of or worsening depression). Peer support, health and mental health counselling, integrated care and better communication about waitlist position and management (e.g. patient prioritization) were identified support needs. Even if wait times cannot be reduced, better peer and health professional supports, together with better communication from health departments, may improve the experience or outcomes of waiting and confer quality-of-life gains irrespective of weight loss.
Collapse
|
42
|
Page D, Gilroy M, Hurrion E, Clark L, Wilkinson S. Optimising early neonatal nutrition using translational research methodology. Nutr Diet 2017; 74:460-470. [PMID: 29130288 DOI: 10.1111/1747-0080.12333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 08/25/2016] [Accepted: 09/19/2016] [Indexed: 11/28/2022]
Abstract
AIM Preterm birth has been described as a 'nutritional emergency', with these infants often born with minimal nutrition reserves. Failure to provide adequate early nutrition jeopardises growth and neurodevelopment. Consensual nutrition guidelines exist for infants who weigh <1500 g; however, audits have identified shortfalls in their adherence, consequently highlighting an evidence-practice gap. This work aimed to identify the barriers to the delivery of early optimal nutrition in a tertiary-level Neonatal Critical Care Unit to inform an implementation project to ensure best practice care. METHODS A total of 19 medical and nursing staff participated in semistructured interviews. Transcripts underwent qualitative content analysis to examine barriers to early infant feeding. Barriers were categorised into domains from the Theoretical Domains Framework (TDF), and potential interventions were identified using evidence-based strategy selection guides that articulates with the TDF. RESULTS Four main themes, with associated sub-themes, emerged, including: (i) Roles and responsibilities, (ii) decision making, (iii) disconnect between beliefs and the application of evidence and (iv) monitoring and awareness. Eight barrier 'domains' were identified using TDF-Knowledge; memory, attention and decision processes; skills; professional/social role and identity; beliefs about capabilities; beliefs about consequences; environmental context and resources; and social influences. CONCLUSIONS Using a systematic approach to analysing barriers to early nutrition and mapping through the TDF and behaviour change wheel, the most effective interventions to modify practice have been identified. These will be monitored in ongoing audits.
Collapse
|
43
|
Maher A, Wilkinson S, Gluer R. Case Report of Cardiac Tamponade as the Initial Presentation of Metastatic Pulmonary Adenocarcinoma. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
44
|
Wilkinson S, Bishop SC, Allen AR, McBride SH, Skuce RA, Bermingham M, Woolliams JA, Glass LJ. P6019 Host genetics of resistance to bovine tuberculosis infection in dairy cows. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement4157a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
45
|
Ball L, Wilkinson S. Nutrition care by general practitioners: Enhancing women's health during and after pregnancy. AUSTRALIAN FAMILY PHYSICIAN 2016; 45:542-547. [PMID: 27610441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND The importance of healthy dietary behaviours during pregnancy and after birth is well recognised given the short-term and long-term effects on the health of mothers and infants. Pregnancy is an ideal time to implement health behaviour changes, as women are receptive to health messages at this time. The majority of pregnant women have regular, ongoing contact with general practitioners (GPs), particularly during early pregnancy. OBJECTIVE This paper provides an overview of the latest evidence regarding the nutrition requirements of women during and after birth, and describes simple ways that GPs can incorporate brief, effective nutrition care into standard consultations. DISCUSSION Two approaches for enhancing the nutrition care provided by GPs are presented. These approaches are for GPs to feel confident in raising the topic of nutrition in standard consultations and being equipped with effective, evidence-based messages that can be incorporated into consultations. Collectively, these approaches promote healthy dietary behaviours for intergenerational benefits.
Collapse
|
46
|
Patel L, Horsley A, Wilkinson S. WS11.2 Newborn screening for cystic fibrosis in an ethnically diverse population. J Cyst Fibros 2016. [DOI: 10.1016/s1569-1993(16)30121-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
47
|
Burr S, Chatterjee A, Gibson S, Coombes L, Wilkinson S. Key Points to Facilitate the Adoption of Computer-Based Assessments. JOURNAL OF MEDICAL EDUCATION AND CURRICULAR DEVELOPMENT 2016; 3:JMECD.S20379. [PMID: 29349322 PMCID: PMC5736289 DOI: 10.4137/jmecd.s20379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/18/2016] [Accepted: 04/20/2016] [Indexed: 06/07/2023]
Abstract
There are strong pedagogical arguments in favor of adopting computer-based assessment. The risks of technical failure can be managed and are offset by improvements in cost-effectiveness and quality assurance capability. Academic, administrative, and technical leads at an appropriately senior level within an institution need to be identified, so that they can act as effective advocates. All stakeholder groups need to be represented in undertaking a detailed appraisal of requirements and shortlisting software based on core functionality, summative assessment life cycle needs, external compatibility, security, and usability. Any software that is a candidate for adoption should be trialed under simulated summative conditions, with all stakeholders having a voice in agreeing the optimum solution. Transfer to a new system should be carefully planned and communicated, with a programme of training established to maximize the success of adoption.
Collapse
|
48
|
Hewitt DKL, Mills G, Hayes F, Norris D, Coyle M, Wilkinson S, Davies W. N-fixation in legumes--An assessment of the potential threat posed by ozone pollution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 208:909-18. [PMID: 26385644 DOI: 10.1016/j.envpol.2015.09.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/04/2015] [Indexed: 06/05/2023]
Abstract
The growth, development and functioning of legumes are often significantly affected by exposure to tropospheric ozone (O3) pollution. However, surprisingly little is known about how leguminous Nitrogen (N) fixation responds to ozone, with a scarcity of studies addressing this question in detail. In the last decade, ozone impacts on N-fixation in soybean, cowpea, mung bean, peanut and clover have been shown for concentrations which are now commonly recorded in ambient air or are likely to occur in the near future. We provide a synthesis of the existing literature addressing this issue, and also explore the effects that may occur on an agroecosystem scale by predicting reductions in Trifolium (clovers) root nodule biomass in United Kingdom (UK) pasture based on ozone concentration data for a "high" (2006) and "average" ozone year (2008). Median 8% and 5% reductions in clover root nodule biomass in pasture across the UK were predicted for 2006 and 2008 respectively. Seasonal exposure to elevated ozone, or short-term acute concentrations >100 ppb, are sufficient to reduce N-fixation and/or impact nodulation, in a range of globally-important legumes. However, an increasing global burden of CO2, the use of artificial fertiliser, and reactive N-pollution may partially mitigate impacts of ozone on N-fixation.
Collapse
|
49
|
Patel LB, Panickar J, Shawcross A, Wilkinson S. P88 The evaluation of Exophiala in paediatric cystic fibrosis. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
50
|
Roberts AM, Ware J, Herman D, Schafer S, Mazzarotto F, Baksi J, Buchan R, Walsh R, John S, Wilkinson S, Felkin L, Bick A, Radke M, Gotthardt M, Barton P, Hubner N, Seidman J, Seidman C, Cook S. C Integrated Allelic, Transcriptional, and Phenotypic Dissection of the Cardiac Effects of Titin Variation in Health and Diseaser. BRITISH HEART JOURNAL 2015. [DOI: 10.1136/heartjnl-2015-308066.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|