Julia L Newton

Newcastle University, Newcastle-on-Tyne, England, United Kingdom

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Publications (198)935.72 Total impact

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    ABSTRACT: Dry-sauna is a strong thermal stimulus and is commonly used all over the world. The aim of this experiment was to comprehensively analyse cardiovascular and autonomic changes that result from an increase in core body temperature during sauna bath. The study included 9 healthy men with mean age 26.7 ± 3.0 years and comparable anthropomorphical characteristics. Each subject was exposed to one 15-minute session of dry-sauna treatment at 100 ∘ C and 30–40% humidity. The autonomic and baseline cardiovascular (i.e., hemodynamic and contractility) parameters were measured noninvasively with Task Force Monitor. Cardiovascular autonomic functions were assessed using baroreceptor reflex sensitivity (BRS) and spectral analysis of heart rate (HRV) and blood pressure (BPV) variability. Measurements were performed four times, at the following stages "before sauna, " "after sauna, " "sauna + 3 h, " and "sauna + 6 h. " The first recording constituted a baseline for the subsequent three measurements. The changes in core body temperature were determined with the Vital Sense telemetric measurement system. Results show that exposure to the extreme external environmental conditions of dry-sauna does not compromise homeostasis in healthy persons. The hemodynamic changes induced by heating are efficiently compensated by the cardiovascular system and do not exert negative effects upon its short-term regulatory potential.
    Physiology Journal. 10/2014; 2014.
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    ABSTRACT: As services are commissioned based on effectiveness, occupational therapists are under pressure to demonstrate the efficacy of their interventions. Occupational therapists also need to know that the interventions they are providing are effective. Robertson et al (2013) demonstrated that the occupational therapy literature is important for clinicians and is an essential part of their practice. However, as more research is published, it can be increasingly time-consuming and confusing for clinicians to keep abreast of the current literature. Occupational therapy-related research may be published in different forms, in a range of locations, and be of varying methodological quality. Furthermore, readily available published studies that investigate occupational therapy efficacy may not be sufficiently powered, or lack external validity, when applied to different clinical settings. Well-conducted, systematic reviews provide a useful way of synthesizing and evaluating the evidence on a particular topic and, to some extent, provide a solution to this problem. This paper focuses upon reviews of randomized controlled trials, as these provide the highest quality of evidence on the question of a particular intervention’s effectiveness. The merits of reviews of qualitative studies are also considered, together with the possibility of combining more than one type of review.
    British Journal of Occupational Therapy 09/2014; 77(9):479.
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    ABSTRACT: With a rapidly expanding older population and increased survival of older people with chronic disease, we can expect to see increasing numbers of people with orthostatic hypotension (OH). Unfortunately the evidence base for people with OH, with particular relevance to older people, has not kept up and has resulted in a real lack of progress and little good evidence. There are several areas of research that could potentially benefit patients but establishing which ones are priority areas requires public and patient involvement (PPI). This process includes people/patients in the research team to maximise the relevance, success and translation of the research. This brief report describes the early involvement of older people in prioritising the research question, methods to improve adherence during a trial and the preferred methods to disseminate research output. The individuals' priority was to research non-pharmacological treatment strategies and to improve the education of patients about their condition. Education was felt to be the best strategy to promote adherence during a trial, with change in symptoms and quality of life felt to be the most important outcome measures as opposed to blood pressure. This report offers guidance for academics that are undertaking OH-related research and how they can improve its relevance and increase its translation into clinical practice.
    Age and Ageing 08/2014; · 3.82 Impact Factor
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    ABSTRACT: Over recent years, a considerable increase in the popularity of cryostimulation and whole body cryotherapy (WBC) procedures has occurred both among healthy individuals and in various groups of patients, including those with primary untreated hypertension. The aim of this study was to compare the effects of WBC on the functional parameters of cardiovascular system in normotensive and primarily hypertensive individuals. The study included 26 young male volunteers with normal blood pressure range (NormoBP) and 13 with essential arterial hypertension (HyperBP). Each subject was exposed to cryotherapeutic factor (whole-body cryotherapy/cryostimulation, WBC) at a temperature of approximately - 115°C to -125°C for a peroid of 3 minutes. The cardiovascular and autonomatic paramaters were measured noninvasively with Task Force® Monitor. Measurements in a supine position and tilt test were performed "before WBC" and "after WBC". Our study revealed that cryogenic temperatures exert strong modulatory effect on the cardiovascular system. Both groups showed adaptive changes of myocardial and vascular parameters in response to rapid cooling of virtually the whole body surface. While the profiles of some of these changes were similar in both the groups, also several considerable intergroup differences were documented. Consequently, the cryostimulation and cryotherapy treatment should be prescribed carefully to individuals who present with cardiovascular failure of any degree.
    Cryobiology 08/2014; · 2.14 Impact Factor
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    ABSTRACT: Background: Chronic Fatigue Syndrome (CFS) affects 0.23–2.6% of the adult population. Sleep-related complaints are amongst the most frequently reported symptoms in these patients. Although a biopsychosocial model of CFS offers a plausible framework for understanding the condition, the role of sleep and how it functions within this model remains unclear. Purpose: This narrative review describes the findings of studies of sleep in CFS and considers the reasons behind the diversity of results. The review also discusses the difficulties that exist in establishing relationships between sleep, behaviour, cognition, physiology, and the physical symptoms of CFS. Methods: A search of Medline for the terms “CFS,” “chronic fatigue syndrome,” AND “sleep” was performed to identify articles concerning sleep and CFS from 1988 to the present. Results: Subjective sleep dysfunction was frequently reported in the CFS sleep studies. However, objective sleep research in CFS has shown no consistent picture of sleep disturbance, particularly with regard to polysomnography. This may be attributable to the heterogeneity of sleep phenotypes in the CFS population as well as the variability in sleep assessment protocols, case definitions, and exclusion criteria used across studies. Conclusions: Given the high prevalence of disturbed sleep in this population in combination with inconsistent findings, exploration of new protocols for the objective assessment of sleep in CFS (e.g., three-night PSG protocol) is recommended. Understanding the distinct sleep characteristics in this population could serve to improve insight into perpetuating factors of CFS symptoms which is relevant for diagnosis and therapy.
    Fatigue: Biomedicine, Health & Behavior. 07/2014; 2(3):163-184.
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    ABSTRACT: Cirrhosis has a long natural history with considerable symptomatic impacts, particularly in advancing disease. Measuring Health Related Quality of Life (HRQOL) in liver disease provides detail about the nature and extent of its effects on individuals. Understanding the drivers of impaired HRQOL can help identify targets for improvement through new treatments or systems of care delivery. Evaluation of novel therapies which target symptomatic improvement should be done with suitable outcome measures, including HRQOL assessment. In this article, we provide an overview of HRQOL in advanced liver disease for the clinician. A clear description of the important HRQOL tools is given alongside a discussion of the factors which are known to contribute to impaired HRQOL in advanced liver disease.
    Journal of hepatology. 07/2014;
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    ABSTRACT: Background Symptoms of primary Sjögren's syndrome are varied and impact on quality of life. Non pharmacological interventions such as complimentary therapies, psychotherapy and medical devices aim to relieve symptoms and improve function. We pre-registered a protocol with PROSPERO (CRD42013004997), then conducted a systematic review. Objectives To determine the efficacy of non pharmacological interventions on all outcomes in primary Sjogren's syndrome. Methods A predefined list of databases were searched from inception to July 2013 with a list of search terms. Randomised controlled trials (RCTs) of any non-pharmacological interventions for adults with PSS were included. Any comparator was allowed. Titles and abstracts of studies were considered according to the inclusion/exclusion criteria. Full texts were reviewed for inclusion independently by two authors. Two review authors separately extracted the data of included studies onto standardised forms. Risk of bias was assessed using the Cochrane Risk of Bias Tool. Outcomes fell within the main domains addressed by the World Health Organisation International Classification of Functioning. Results 996 studies were identified of which 17 full text articles were screened and 5 studies were included in this review with a total of 130 participants randomised. The included studies investigated effectiveness of an oral lubricating device for dry mouth, acupuncture for dry mouth, lacrimal punctum plugs for dry eyes and psychodynamic group therapy for coping with symptoms. One study[1] showed improvement in salivary flow and speed of speech with an oral lubricating device but was at high risk of bias. One study of punctum plugs[2] had no extractable data and another[4] comparing punctum plugs to artificial tears reported improvements on tear volume and film with punctum plugs, but this study was small (n=42). No benefits were reported on psychodynamic therapy in a small, poor quality study[5]. Conclusions We identified no evidence that any non-pharmacological interventions improved symptoms of PSS. References Frost PM, Shirlaw PJ, et al. Impact of wearing an intra-oral lubricating device on oral health in dry mouth patients. Oral Dis 2006;12(1):57-62. List T, Lundeberg T, et al. The effect of acupuncture in the treatment of patients with primary Sjogren's syndrome. A controlled study. Acta Odontol Scand 1998;56(2):95-9. Mansour K, Leonhardt CJ, et al. Lacrimal punctum occlusion in the treatment of severe keratoconjunctivitis Sicca caused by Sjogren syndrome: a uniocular evaluation. Cornea 2007; 26(2). Qiu WQ, Liu ZY, et al. Punctal plugs versus artificial tears for treating primary Sjogren's syndrome with keratoconjunctivitis SICCA: a comparative observation of their effects on visual function. Rheumatol Int 2013;33(10):2543-48. Poulsen A. Psychodynamic, time-limited group therapy in rheumatic disease – a controlled study with special reference to alexithymia. Psychother Psychosom 1991;56(1-2):12-23.
    Annals of the Rheumatic Diseases 06/2014; 73(Suppl 2):1211-1212. · 9.11 Impact Factor
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    ABSTRACT: Rationale, aims and objectivesIn the context of an ageing population, increasing numbers of older people with long-term conditions are presenting to secondary health care facilities in the United Kingdom having experienced a fall or fall-related injury. Despite such observations, falls and long-term conditions have traditionally been regarded as entirely separate entities. The purpose of this study was to explore the process of behaviour change in a small sample of older people with the fall-associated chronic liver disease primary biliary cirrhosis (PBC) receiving either a standard or an enhanced programme of strength and balance training (SBT).MethodsA qualitatively driven mixed-methods approach was employed that juxtaposed semi-structured interviews with graphical representations of patient-reported outcome measures collected during the course of an experimental case series in nine older people with the fall-associated chronic liver disease PBC.ResultsParticipants receiving both the standard and enhanced intervention completed the programme of SBT as instructed throughout the course of the case series. However, only the enhanced intervention, which focused on self-determination and self-management support, was associated with continued active participation on completion of the programme.Conclusions Longer, but not necessarily more intensive, periods of clinical intervention are necessary to support individuals at risk of falling to move through the incremental stages of behaviour change. Effective self-management support should focus on the development of a wide range of strategies and behaviours to empower older people with long-term conditions develop an ongoing active commitment to SBT.
    Journal of Evaluation in Clinical Practice 05/2014; · 1.51 Impact Factor
  • International journal of cardiology 04/2014; · 6.18 Impact Factor
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    ABSTRACT: This study objectively analyzed postural instability and cognitive function in patients with Parkinson's disease (PD) and a group of healthy elderly and middle-aged individuals. The study included ten healthy middle-aged individuals (range 42-57 years), 14 healthy elderly individuals (range 60-90 years) and 15 PD patients (range 58-93 years). Center of pressure (COP) parameters were determined by means of computed static posturography during free standing with open and closed eyes. The level of cognitive functioning was examined with mini mental state examination (MMSE) and counting backwards test (CBT). Parkinson's disease patients showed significantly lower MMSE scores compared to healthy middle-aged (p = 0.004) and elderly individuals (p = 0.03). Mean duration of CBT in PD patients was significantly longer than in healthy subjects. COP parameters correlated with age of subjects and cognitive function (MMSE score). No significant differences in any stabilographic parameters were observed between healthy elderly subjects and PD patients. Age is the most significant factor impacting upon the static balance of older individuals during free standing. Compared to middle-aged and elderly individuals without central nervous system impairment, patients with PD present with significant delay in cognitive processes associated with executive function.
    Aging - Clinical and Experimental Research 04/2014; · 1.01 Impact Factor
  • James Frith, Julia L. Newton
    Journal of the American Geriatrics Society 04/2014; 62(4). · 4.22 Impact Factor
  • James Frith, Julia L Newton, Steve W Parry
    Age and Ageing 01/2014; · 3.82 Impact Factor
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    ABSTRACT: Ischemic heart disease is the leading cause of mortality worldwide. Due to advances in medicine in the last few decades, life expectancy has increased resulting in an aging population in developed and developing countries. Acute coronary syndrome causes greater morbidity and mortality in this group of older patients, which appears to be due to age-related co-morbidities. This review examines the incidence and prevalence of acute coronary syndrome among older patients, examines current treatment strategies, and evaluates the predictors of adverse outcomes. In particular, the impact of frailty on outcomes and the need for frailty assessment in developing future research and management strategies among older patients are discussed.
    Cardiology in review 01/2014;
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    ABSTRACT: A significant proportion of patients with primary Sjögren's syndrome (PSS) is functionally impaired and experience difficulties participating in various aspects of everyday life. There is currently no evidence of efficacy for non-pharmacological interventions aimed specifically at supporting the patients with PSS to improve their participation and ability to perform daily activities. This paper describes a research protocol for a mixed-methods study to develop an intervention to improve these outcomes. The protocol follows the Medical Research Council framework for complex interventions.
    BMJ Open 01/2014; 4(8):e006264. · 1.58 Impact Factor
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    ABSTRACT: To examine a large UK cohort of patients with postural tachycardia syndrome (PoTS), to compare demographic characteristics, symptoms and treatment of PoTS at one centre compared to the largest patient group PoTS UK and to verify if their functional limitation is similar to patients with chronic fatigue syndrome (CFS).
    BMJ Open 01/2014; 4(6):e004127. · 1.58 Impact Factor
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    ABSTRACT: The cardiovascular, autonomic and thermal response to whole-body cryostimulation exposure are not completely known. Thus the aim of this study was to evaluate objectively and noninvasively autonomic and thermal reactions observed after short exposure to very low temperatures. We examined 25 healthy men with mean age 30.1±3.7 years and comparable anthropomorphical characteristic. Each subject was exposed to cryotherapeutic temperatures in a cryogenic chamber for 3 minutes (approx. - 120oC). The cardiovascular and autonomic parameters were measured noninvasively with Task Force® Monitor. The changes in core body temperature were determined with the Vital Sense® telemetric measurement system. Results show that 3 minutes to cryotherapeutic temperatures causes significant changes in autonomic balance which are induced by peripheral and central blood volume changes. Cryostimulation also induced changes in core body temperature, maximum drop of core temperature was observed 50–60 min after the stimulation. Autonomic and thermal reactions to cryostimulation were observed up to 6 hours after the exposure and were not harmful for examined subjects.
    Journal of Thermal Biology 01/2014; · 1.54 Impact Factor
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    ABSTRACT: Background: The relationship between sleep and daytime physical and mental functioning in chronic fatigue syndrome has been largely neglected by researchers, as has the impact of daytime napping. Objectives: To examine self-reported sleep in CFS patients and explore whether sleep quality and daytime napping predicted markers of daytime functioning, specifically fatigue, sleepiness and cognitive functioning, all key dimensions of the illness experience. Methods: A consecutive sample of 118 CFS patients (Fukuda) completed a standardised sleep diary over 14 days. Levels of daytime functioning and disability were quantified using symptom assessment tools to measure fatigue (Chalder Fatigue Scale), sleepiness (Epworth Sleepiness Scale), cognitive functioning (Trail Making Test, Cognitive Failures Questionnaire), and mood (Hospital Anxiety and Depression Scale). Results: Hierarchical Regression analyses demonstrated that longer time since diagnosis, higher depression and longer wake time after sleep onset predicted 23.4% of the variance in fatigue severity (p < .001). Being male, higher depression and more afternoon naps predicted 25.6% of the variance in objective cognitive dysfunction (p < .001). Higher anxiety and depression and morning napping predicted 32.2% of the variance in subjective cognitive dysfunction (p < .001). When patients were classified into groups of mild and moderate sleepiness, those with longer daytime naps, those who mainly napped in the afternoon, and those with higher levels of anxiety, fell into the moderately sleepy group. Conclusions: Napping, particularly in the afternoon can have a negative impact on patients' daytime cognitive functioning and sleepiness. These findings have clinical implications for symptom management strategies.
    9th UK Society for Behavioural Medicine (UKSBM) Annual Scientific Meeting, Oxford, United Kingdom; 12/2013
  • James Frith, Pamela Reeve Rn, Julia L Newton
    Journal of the American Geriatrics Society 08/2013; 61(8):1414-5. · 4.22 Impact Factor
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    ABSTRACT: Primary biliary cirrhosis (PBC) is a chronic liver disease characterised by cholestasis. Recent MRI studies have confirmed the presence of cardiac abnormalities in non-cirrhotic PBC patients. However cardiorespiratory consequences of these abnormalities have not been explored. Thoracic fluid content (TFC) is a non-invasive bio-electrical impedance measure of the electrical conductivity of the chest cavity. We explored TFC and its relationship with cardiac contractility parameters in early stage PBC patients, compared to chronic liver disease and community controls. Methods: TFC was measured in early stage PBC (non-cirrhotic; n=78), non-alcoholic fatty liver disease (NAFLD; n=23) and primary sclerosing cholangitis (PSC; n=18) and a community control population (n=78). Myocardial contractility was measured as index of contractility (IC), acceleration index (ACI), cardiac index (CI), stroke index (SI), Left Ventricular Ejection Time (LVET) and left ventricular work index (LVWI). We also measured total arterial compliance (TAC) and the Heather Index (HI; cardiac inotropy). Results: The PBC group had significantly lower TFC compared to controls and the chronic liver disease groups (p<0.0001). There was an association between increasing TFC and markers of cardiac function (CI, SI, EDI , IC and ACI), together with indicators of cardiac inotropy (HI) and total arterial compliance (TAC). Multivariate analysis confirmed that the only parameter that independently associated with TFC was the marker of cardiac inotropy HI (p=0.037; Beta 0.5). Conclusion: This study has confirmed that TFC is reduced in those with PBC, that this is specific to PBC and that it associates independently with markers of cardiac inotropy.
    AJP Gastrointestinal and Liver Physiology 07/2013; · 3.65 Impact Factor
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    ABSTRACT: BACKGROUND: Cardiac hypertrophic remodelling and systolic dysfunction are common in patients with mitochondrial disease and independent predictors of morbidity and early mortality. Endurance exercise training improves symptoms and skeletal muscle function, yet cardiac adaptations are unknown. METHODS AND RESULTS: Before and after 16-weeks of training, exercise capacity, cardiac magnetic resonance imaging and phosphorus-31 spectroscopy, disease burden, fatigue, quality of life, heart rate variability (HRV) and blood pressure variability (BPV) were assessed in 10 adult patients with m.3243A>G-related mitochondrial disease, and compared to age- and gender-matched sedentary control subjects. At baseline, patients had increased left ventricular mass index (LVMI, p<0.05) and LV mass to end-diastolic volume ratio, and decreased longitudinal shortening and myocardial phosphocreatine/adenosine triphosphate ratio (all p<0.01). Peak arterial-venous oxygen difference (p<0.05), oxygen uptake (VO2) and power were decreased in patients (both p<0.01) with no significant difference in cardiac power output. All patients remained stable and completed ≥80% sessions. With training, there were similar proportional increases in peak VO2, anaerobic threshold and work capacity in patients and controls. LVMI increased in both groups (p<0.01), with no significant effect on myocardial function or bioenergetics. Pre- and post-exercise training, HRV and BPV demonstrated increased low frequency and decreased high frequency components in patients compared to controls (all p<0.05). CONCLUSION: Patients with mitochondrial disease and controls achieved similar proportional benefits of exercise training, without evidence of disease progression, or deleterious effects on cardiac function. Reduced exercise capacity is largely mediated through skeletal muscle dysfunction at baseline and sympathetic over-activation may be important in pathogenesis.
    International journal of cardiology 06/2013; · 6.18 Impact Factor

Publication Stats

2k Citations
935.72 Total Impact Points

Institutions

  • 1997–2014
    • Newcastle University
      • • Institute of Cellular Medicine
      • • Institute for Ageing and Health
      • • Institute for Cell and Molecular Biosciences
      Newcastle-on-Tyne, England, United Kingdom
    • The Newcastle upon Tyne Hospitals NHS Foundation Trust
      • • Department of Cardiology
      • • Department of Geriatric Medicine
      Newcastle-on-Tyne, England, United Kingdom
  • 2013
    • Nicolaus Copernicus University
      • Department of Hygiene and Epidemiology
      Toruń, Kujawsko-Pomorskie, Poland
  • 2012
    • Cambridge University Hospitals NHS Foundation Trust
      Cambridge, England, United Kingdom
  • 2009–2012
    • NIHR Oxford Biomedical Research
      Oxford, England, United Kingdom
    • UK Department of Health
      Londinium, England, United Kingdom
  • 2010
    • University of Newcastle
      Newcastle, New South Wales, Australia
  • 2001–2008
    • Nottinghamshire Healthcare NHS Trust
      Nottigham, England, United Kingdom
  • 2007
    • University of Padova
      Padua, Veneto, Italy
  • 2006
    • Newcastle University Medicine Malaysia
      Bharu, Johor, Malaysia
  • 2004
    • Flinders University
      • Department of Rehabilitation and Aged Care
      Adelaide, South Australia, Australia