Medicine and Health Sciences Commons^™

Furthering The Quality Agenda In Aboriginal Community Controlled Health Services: Understanding The Relationship Between Accreditation, Continuous Quality Improvement And National Key Performance Indicator Reporting, Beverly Sibthorpe, Karen Gardner, Daniel Mcaullay

Research outputs 2014 to 2021

A rapidly expanding interest in quality in the Aboriginal-community-controlled health sector has led to widespread uptake of accreditation using more than one set of standards, a proliferation of continuous quality improvement programs and the introduction of key performance indicators. As yet, there has been no overarching logic that shows how they relate to each other, with consequent confusion within and outside the sector. We map the three approaches to the Framework for Performance Assessment in Primary Health Care, demonstrating their key differences and complementarity. There needs to be greater attention in both policy and practice to the purposes and alignment …

Compliance, Palatability And Feasibility Of Paleolithic And Australian Guide To Healthy Eastin Diets In Healtthy Women: A 4-Week Dietary Intervention, Angela Genoni, Johnny Lo, Philippa Lyons-Wall, Amanda Devine

Research outputs 2014 to 2021

(1) Background/Objectives:

The Paleolithic diet has been receiving media coverage in Australia and claims to improve overall health. The diet removes grains and dairy, whilst encouraging consumption of fruits, vegetables, meat, eggs and nuts. Our aim was to compare the diet to the Australian Guide to Healthy Eating (AGHE) in terms of compliance, palatability and feasibility;

(2) Subjects/Methods:

39 healthy women (age 47 ± 13 years, BMI 27 ± 4 kg/m²) were randomised to an ad-libitum Paleolithic (n = 22) or AGHE diet (n = 17) for 4-weeks. A food checklist was completed daily, with mean discretionary consumption …

Discriminant Validity Of The Hospital Anxiety And Depression Scale, Beck Depression Inventory (Ii) And Beck Anxiety Inventory To Confirmed Clinical Diagnosis Of Depression And Anxiety In Patients With Chronic Obstructive Pulmonary Disease, Tina Phan, Owen Carter, Claire Adams, Grant Waterer, Li Ping Chung, Maxine Hawkins, Cobie Rudd, Mel R. Ziman, Natalie Strobel

Research outputs 2014 to 2021

The objective of this study was to investigate the discriminant validity of commonly used depresson and anxiety screening tools in order to determine the most suitable tool for patients with chronic obstructive pulmonary disease (COPD). COPD patients (n = 56) completed the Hospital Anxiety and Depression Scale (HADS), Beck Depression Inventory (BDI-II) and Beck Anxiety Inventory (BAI). These scores were compared to confirmed clinical diagnosis of depression and anxiety using the Mini Neuropsychiatric Interview. HADS depression subscale (HADS-D) sensitivity/specificity was 78/81 %; BDI-II 89/77 %; HADS anxiety subscale (HADS-A) 71/81 %; and BAI 89/62 %. HADS-D sensitivity/specificity was improved …

Learning Preferences Of Enrolled Nursing Students: Educational Preparation And Training For Workplace Readiness, Kalpana Raghunathan, Sonia Allen, Elisabeth R. Jacob

Research outputs 2014 to 2021

In Australia there are two entry levels in nursing: the Registered Nurse (RN) and the Enrolled Nurse (EN). Nursing education research is predominately focused on higher education for Registered Nurses and postgraduate nursing students; as a result, the educational preferences of Enrolled Nursing students in the vocational education and training (VET) setting have not been identified. Enrolled Nursing students have some distinct educational needs as they transition through education into the workforce due to their diversity in learner characteristics and backgrounds. As the role of this group continues to expand in the workplace to meet the demands of the health …

Discriminating Talent Identified Junior Australian Footballers Using A Fundamental Gross Athletic Movement Assessment, Carle T. Woods, Henry Banyard, Ian Mckeown, Job Fransen, Sam J. Robertson

Research outputs 2014 to 2021

Talent identification (TID) is a pertinent component of the sports sciences, affording practitioners the opportunity to target developmental interventions to a select few; optimising financial investments. However, TID is multi-componential, requiring the recognition of immediate and prospective performance. The measurement of athletic movement skill may afford practitioners insight into the latter component given its augmented relationship with functional sport specific qualities. It is currently unknown whether athletic movement skill is a discriminant quality in junior Australian football (AF). This study aimed to discriminate talent identified junior AF players from their non-talent identified counterparts using a fundamental gross athletic movement assessment. …

The Association Between Glycosylation Of Immunoglobulin G And Hypertension: A Multiple Ethnic Cross-Sectional Study, Youxin Wang, Lucija Klarić, Xinwei Yu, Kujtim Thaqi, Jing Dong, Mislav Novokmet, Jim Wilson, Ozren Polasek, Youqin Liu, Jasminka Krištić, Siqi Ge, Maja Pučić-Baković, Lijuan Wu, Yong Zhou, Ivo Ugrina, Manshu Song, Jie Zhang, Xiuhua Guo, Qiang Zeng, Igor Rudan, Harry Campbell, Yurii Aulchenko, Gordan Lauc, Wei Wang

Research outputs 2014 to 2021

More than half of all known proteins, and almost all membrane and extra-cellular proteins have oligosaccharide structures or glycans attached to them. Defects in glycosylation pathways are directly involved in at least 30 severe human diseases. A multiple center cross-sectional study (China, Croatia, and Scotland) was carried out to investigate the possible association between hypertension and IgG glycosylation. A hydrophilic interaction chromatography of fluorescently labeled glycans was used to analyze N-glycans attached to IgG in plasma samples from a total of 4757 individuals of Chinese Han, Croatian, and Scottish ethnicity. Five glycans (IgG with digalactosylated glycans) significantly differed in participants …

Investigation Of The Relationship Between Chronic Stress And Insulin Resistance In A Chinese Population, Yuxiang Yan, Huanbo Xiao, Sisi Wang, Jing Zhao, Yan He, Wei Wang, Jing Dong

Research outputs 2014 to 2021

Background:

Chronic stress may facilitate the development of metabolic diseases. Insulin resistance is present long before the clinical manifestations of individual metabolic abnormalities. To explore whether chronic stress is an independent risk factor of insulin resistance, we investigated the relationship between the stress system, selected parameters of energy homeostasis, and insulin resistance in a Chinese population.

Methods:

We recruited 766 workers employed at four companies in Beijing. The degree of insulin resistance was determined using the homeostasis model assessment of insulin resistance (HOMA-IR). The highest quartile of HOMA-IR among all study subjects was further defined as insulin resistance in our …

The Impact Of Adding Assistants In Nursing To Acute Care Hospital Ward Nurse Staffing On Adverse Patient Outcomes: An Analysis Of Administrative Health Data, Diane E. Twigg, Helen Myers, Christine M. Duffield, Judith Dianne Pugh, Lucy Gelder

Research outputs 2014 to 2021

Objectives:

The aim of this study was to assess the impact of adding assistants in nursing to acute care hospital ward nurse staffing on adverse patient outcomes using administrative health data.

Design:

Logistic regression modelling was used with linked administrative health data to examine the association between seven adverse patient outcomes and use of assistants in nursing utilising a pre-test/ post-test design. Outcomes included were in-hospital 30-day mortality, failure to rescue, urinary tract infection, pressure injury, pneumonia, sepsis and falls with injury.

Setting:

Eleven acute care metropolitan hospitals in Western Australia. Sample: Patients were retained in the dataset if they …

Integration Of Suboptimal Health Status And Endothelial Dysfunction As A New Aspect For Risk Evaluation Of Cardiovascular Disease, Vitalli Kupaev, Oleg Borisov, Ekaterina Marutina, Yuxiang Yan, Wei Wang

Research outputs 2014 to 2021

Background:

Suboptimal health status (SHS) is recognized as a subclinical, reversible stage of chronic disease. Association has been confirmed between SHS and cardiovascular risk factors, indicating that SHS may contribute to the development of cardiovascular disease. This study explored integrated risk assessment of cardiovascular disease by combining SHS questionnaire-25 (SHSQ-25) and indicators of endothelial dysfunction.

Methods:

A community-based cross-sectional study was conducted in a sample of 459 residents of Samara, Russia, who had no history of clinical diagnosed disease and did not receive any treatment in the last 2 weeks. The SHS score was derived from the data collected in …

Suppression Of Neutrophil-Mediated Tissue Damage—A Novel Skill Of Mesenchymal Stem Cells, Dongsheng Jiang, Jana Muschhammer, Yu Qi, Andrea Kügler, Juliane C. De Vries, Mona Saffarzadeh, Anca Sindriaru, Seppe V. Beken, Meinhard Wlaschek, Mark A. Kluth, Christoph Ganss, Natasha Y. Frank, Markus H. Frank, Klaus T. Preissner, Karin Scharffetter-Kochanek

Research outputs 2014 to 2021

Mesenchymal stem cells (MSCs) are crucial for tissue homeostasis and regeneration. Though of prime interest, their potentially protective role on neutrophil-induced tissue damage, associated with high morbidity and mortality, has not been explored in sufficient detail. Here we report the therapeutic skill of MSCs to suppress unrestrained neutrophil activation and to attenuate severe tissue damage in a murine immune-complex mediated vasculitis model of unbalanced neutrophil activation. MSC-mediated neutrophil suppression was due to intercellular adhesion molecule 1-dependent engulfment of neutrophils by MSCs, decreasing overall neutrophil numbers. Similar to MSCs in their endogenous niche of murine and human vasculitis, therapeutically injected MSCs …

Review Of Diabetes Among Aboriginal And Torres Strait Islander People, Samantha Burrow, Kathy Ride

Research outputs 2014 to 2021

Diabetes is the world’s fastest growing chronic disease. Type 2 diabetes in particular, has reached epidemic proportions globally and in Australia, and poses a challenge for public health systems everywhere. The greatest burden tends to fall on socially disadvantaged groups and Indigenous peoples Aboriginal and Torres Strait Islander Australians experience disproportionately high levels of diabetes. They are three times more likely to have diabetes than non-Indigenous Australians and Aboriginal and Torres Strait Islander women are almost twice as likely to develop gestational diabetes as non-Indigenous women. There is also evidence that Aboriginal and Torres Strait Islander children are eight times …

Expression Of Cell-Surface Marker Abcb5 Causes Characteristic Modifications Of Glucose, Amino Acid And Phospholipid Metabolism In The G3361 Melanoma-Initiating Cell Line, Norbert W. Lutz, Pallavi Banerjee, Brian J. Watson, Jie Ma, Patrick J. Cozzone, Markus H. Frank

Research outputs 2014 to 2021

We present a pilot study aimed at determining the effects of expression of ATP-binding cassette member B5 (ABCB5), a previously described marker for melanoma-initiating cells, on cellular metabolism. Metabolic profiles for two groups of human G3361 melanoma cells were compared, i.e. wildtype melanoma cells with intact ABCB5 expression (ABCB5-WT) and corresponding melanoma cell variants with inhibited ABCB5 expression, through shRNA-mediated gene knockdown (ABCB5-KD). A comprehensive metabolomic analysis was performed by using proton and phosphorus NMR spectroscopy of cell extracts to examine water-soluble metabolites and lipids. Parametric and non-parametric statistical analysis of absolute and relative metabolite levels yielded significant differences for …

Does Nurses’ Health Affect Their Intention To Remain In Their Current Position?, Lin Perry, Robyn Gallagher, Christine M. Duffield, David Sibbritt, Jen Bichel-Findlay, Rachel Nicholls

Research outputs 2014 to 2021

Aim:

To investigate and describe nurses’ and midwives’ physical health, rates of symptoms and disease, and to determine if these factors contribute to intention to leave.

Background:

The nursing and midwifery workforce is ageing yet little is known about their physical health or its relationship to intention to leave.

Methods:

An online survey of health and work-related assessments was distributed through the New South Wales Nurses and Midwives Association and professional contacts.

Results:

Nurses and midwives (n = 5041) reported good-very good health overall. With 22.2% intending to leave in the next 12 months, older age, better …

Omics' Biomarkers Associated With Chronic Low Back Pain: Protocol Of A Retrospective Longitudinal Study, M. Allegri, Manuela De Gregori, Cristina E. Minella, Catherine Klersy, Wei Wang, Moira G. Sim, Christian Gieger, Judith Manz, Iain K. Pemberton, Jane Macdougall, Frances M. Williams, Jan Van Zundert, Klaas Buyse, Gordan Lauc, Ivan Gudelj, Dragan Primorac, Andrea Skelin, Yurii S. Aulchenko, Lennart C. Karssen, Leonardo Kapural, Richard L. Rauck, Guido Fanelli

Research outputs 2014 to 2021

Introduction

Chronic low back pain (CLBP) produces considerable direct costs as well as indirect burdens for society, industry and health systems. CLBP is characterised by heterogeneity, inclusion of several pain syndromes, different underlying molecular pathologies and interaction with psychosocial factors that leads to a range of clinical manifestations. There is still much to understand in the underlying pathological processes and the non-psychosocial factors which account for differences in outcomes. Biomarkers that may be objectively used for diagnosis and personalised, targeted and cost-effective treatment are still lacking. Therefore, any data that may be obtained at the-omics' level (glycomics, Activomics and genome-wide …

Periodization Strategies In Older Adults: Impact On Physical Function And Health, Jennifer Conlon, Greg Haff, James J. Tufano, Robert Newton

Research outputs 2014 to 2021

Purpose

This study compared the effect of periodized versus nonperiodized (NP) resistance training (RT) on physical function and health outcomes in older adults.

Methods

Forty-one apparently healthy untrained older adults (women = 21, men = 20; 70.9 ± 5.1 yr; 166.3 ± 8.2 cm; 72.9 ± 13.4 kg) were recruited and randomly stratified to a NP, block periodized, or daily undulating periodized training group. Outcome measures were assessed at baseline and after a 22-wk × 3 d·wk⁻¹ RT intervention, including; anthropometrics, body composition, blood pressure and biomarkers, maximal strength, functional capacity, balance confidence, and quality of life.

Results

Thirty-three …

Models For Community Based Day Care For Older People: A Narrative Review, Caroline Bulsara, Christopher Etherton-Beer, Rosemary Saunders

Research outputs 2014 to 2021

Objectives:

Older Australians are choosing to live within the community and there are a number of initiatives to enable this sector of the population to do so for longer. In an effort to ensure that they remain both physically and psychologically engaged, one initiative has been to provide community based day care (CBDC).

Method:

A narrative review was undertaken through searching MEDLINE, CINAHL Plus, Scopus and AgeInfo using keywords related to facility related, target group related and purpose/program of CBDC services.

Results:

Results indicated that there is a much research investigating different approaches but little consensus regarding the optimal delivery …

Incidence, Risk Factors And The Healthcare Cost Of Falls Postdischarge After Elective Total Hip And Total Knee Replacement Surgery: Protocol For A Prospective Observational Cohort Study, Anne-Marie Hill, Gail Ross-Adjie, Steven M. Mcphail, Leanne Monterosso, Max Bulsara, Christopher Etherton-Beer, Sarah-Jayne Powell, Gerard Hardisty

Research outputs 2014 to 2021

Introduction:

The number of major joint replacement procedures continues to increase in Australia. The primary aim of this study is to determine the incidence of falls in the first 12 months after discharge from hospital in a cohort of older patients who undergo elective total hip or total knee replacement.

Method and analyses:

A prospective longitudinal observational cohort study starting in July 2015, enrolling patients aged ≥ 60 years who are admitted for elective major joint replacement (n = 267 total hip replacement, n = 267 total knee replacement) and are to be discharged to the community. Participants are followed …

Building Online Community On Snac: A Netnographic Study Of The Early Years Sector, Ruth Wallace, Leesa Costello, Amanda Devine

Research outputs 2014 to 2021

‘‘Build it and they will come,’’ an adage critiqued as a common misconception of participatory engagement with online communities. Previous research indicated that a netnographic approach based upon researcher– participant engagement would provide the best opportunity to build and sustain a successful support community [...].

Resilience As Resistance To The New Managerialism: Portraits That Reframe Nursing Through Quotes From The Field, Vicki Cope, Bronwyn Jones, Joyce Hendricks

Research outputs 2014 to 2021

Aim:

This paper acknowledges the relationship between resilience and the new managerialism of contemporary nursing.

Methods:

Qualitative portraiture methodology.

Discussion:

The new managerialism in hospital settings results in a rapidly increasing turnover of acutely ill or comorbid patients, which directly relates to retention and quality service. In education settings, the management imperative to recruit more students into the profession combined with financial cutbacks leads to similar tensions. In aged care the trend equates care directly with funding, with the same effect. Yet despite this, many registered nurses remain working. Portraiture explored 'why' nurses remain in workplaces often described as awful. …

Spatiotemporal Pattern Analysis Of Scarlet Fever Incidence In Beijing, China, 2005–2014, Gehendra Mahara, Chao Wang, Da Huo, Qin Xu, Fangfang Huang, Lixin Tao, Jin Guo, Kai Cao, Liu Long, Jagadish K. Chhetri, Qi Gao, Wei Wang, Quanyi Wang, Xiuhua Guo

Research outputs 2014 to 2021

Objective:

To probe the spatiotemporal patterns of the incidence of scarlet fever in Beijing, China, from 2005 to 2014.

Methods:

A spatiotemporal analysis was conducted at the district/county level in the Beijing region based on the reported cases of scarlet fever during the study period. Moran’s autocorrelation coefficient was used to examine the spatial autocorrelation of scarlet fever, whereas the Getis-Ord Gi* statistic was used to determine the hotspot incidence of scarlet fever. Likewise, the space-time scan statistic was used to detect the space-time clusters, including the relative risk of scarlet fever incidence across all settings.

Results:

A total of …

Molecular Determinants And Interaction Data Of Cyclic Peptide Inhibitor With The Extracellular Domain Of Trkb Receptor, Nitin Chitranshi, Vivek Gupta, Yogita Dheer, Veer Gupta, Roshana Vander Wall, Stuart Graham

Research outputs 2014 to 2021

TrkB is a high affinity receptor for the brain derived neurotrophic factor (BDNF) and its phosphorylation stimulates activation of several intracellular signalling pathways linked to cellular growth, differentiation and maintenance. Identification of various activators and inhibitors of the TrkB receptor and greater understanding their binding mechanisms is critical to elucidate the biochemical and pharmacological pathways and analyse various protein crystallization studies. The data presented here is related to the research article entitled "Brain Derived neurotrophic factor is involved in the regulation of glycogen synthase kinase 3β (GSK3β) signalling" [1]. Cyclotraxin B (CTXB) is a disulphide bridge linked cyclic peptide molecule …

The Effects Of Latrepirdine On Amyloid-Β Aggregation And Toxicity, Tenielle Porter, Prashant Bharadwaj, David Groth, Adrian Paxman, Simon Laws, Ralph Martins, Guiseppe Verdile

Research outputs 2014 to 2021

Latrepirdine (DimebonTM) has been demonstrated to be a neuroprotective and cognition improving agent in neurodegenerative diseases that feature protein aggregation and deposition, such as Alzheimer's disease (AD). The accumulation of amyloid-β (Aβ) protein aggregates is a key event in the neurodegenerative process in AD. This study explores if latrepirdine modulation of protein aggregation contributes to its neuroprotective mechanism of action. Assessment of neuronal cell death showed that there was a significant reduction in lactate dehydrogenase release at an equimolar ratio of Aβ:latrepirdine and with lower concentrations of latrepirdine. The ability of latrepirdine to alter the formation of Aβ42 aggregates was …

Plasma Apolipoprotein J As A Potential Biomarker For Alzheimer's Disease: Australian Imaging, Biomarkers And Lifestyle Study Of Aging, Veer Gupta, James D. Doecke, Eugene Hone, Steve Pedrini, Simon M. Laws, Madhav Thambisetty, Ashley Bush,, Christopher C. Rowe, Victor L. Villemagne, David Ames, Colin L. Masters, Stuart Lance Macaulay, Alan Rembach, Stephanie R. Rainey-Smith, Ralph N. Martins

Research outputs 2014 to 2021

Introduction:

For early detection of Alzheimer's disease (AD), the field needs biomarkers that can be used to detect disease status with high sensitivity and specificity. Apolipoprotein J (ApoJ, also known as clusterin) has long been associated with AD pathogenesis through various pathways. The aim of this study was to investigate the potential of plasma apoJ as a blood biomarker for AD.

Methods:

Using the Australian Imaging, Biomarkers and Lifestyle (AIBL) study of aging, the present study assayed plasma apoJ levels over baseline and 18 months in 833 individuals. Plasma ApoJ levels were analyzed with respect to clinical classification, age, gender, …

Comparing Biological Markers Of Alzheimer's Disease Across Blood Fraction And Platforms: Comparing Apples To Oranges, Sid E. O'Bryant, Simone Lista, Robert A. Rissman, Melissa Edwards, Fan Zhang, James Hall, Herik Zetterberg, Simon Lovestone, Veer Bular Gupta, Neill Graff-Radford, Ralph N. Martins, Andreas Jeromin, Stephen Waring, Esther Oh, Mitchel Kling, Laura D. Baker, Harald Hampel

Research outputs 2014 to 2021

Introduction:

This study investigated the comparability of potential Alzheimer's disease (AD) biomarkers across blood fractions and assay platforms.

Methods:

Nonfasting serum and plasma samples from 300 participants (150 AD patients and 150 controls) were analyzed. Proteomic markers were obtained via electrochemiluminescence or Luminex technology. Comparisons were conducted via Pearson correlations. The relative importance of proteins within an AD diagnostic profile was examined using random forest importance plots.

Results:

On the Meso Scale Discovery multiplex platform, 10 of the 21 markers shared > 50% of the variance across blood fractions (serum amyloid A R2 = 0.99, interleukin (IL)10 R2 = 0.95, fatty …

Iron Supplementation And Altitude: Decision Making Using A Regression Tree, Laura A. Garvican-Lewis, Andrew D. Govus, Peter Peeling, Chris R. Abbiss, Christopher J. Gore

Research outputs 2014 to 2021

No abstract provided.

Fine Particulate Air Pollution And Hospital Emergency Room Visits For Respiratory Disease In Urban Areas In Beijing, China, In 2013, Qin Xu, Xia Li, Shuo Wang, Chao Wang, Fangfang Huang, Qi Gao, Lijuan Wu, Lixin Tao, Jin Guo, Wei Wang, Xiuhua Guo

Research outputs 2014 to 2021

Background

Heavy fine particulate matter (PM_2.5) air pollution occurs frequently in China. However, epidemiological research on the association between short-term exposure to PM_2.5 pollution and respiratory disease morbidity is still limited. This study aimed to explore the association between PM_2.5 pollution and hospital emergency room visits (ERV) for total and cause-specific respiratory diseases in urban areas in Beijing. Methods Daily counts of respiratory ERV from Jan 1 to Dec 31, 2013, were obtained from ten general hospitals located in urban areas in Beijing. Concurrently, data on PM_2.5 were collected from the Beijing Environmental Protection Bureau, …

Changes In The Plasma Proteome At Asymptomatic And Symptomatic Stages Of Autosomal Dominant Alzheimer's Disease, Julia Muenchhoff, Anne Poljak, Anbupalam Thalamuthu, Veer Gupta, Pratishtha Chatterjee, Mark Raftery, Colin Masters, John Morris, Randall Bateman, Anne Fagan, Ralph Martins, Perminder Sachdev

Research outputs 2014 to 2021

The autosomal dominant form of Alzheimer's disease (ADAD) is far less prevalent than late onset Alzheimer's disease (LOAD), but enables well-informed prospective studies, since symptom onset is near certain and age of onset is predictable. Our aim was to discover plasma proteins associated with early AD pathology by investigating plasma protein changes at the asymptomatic and symptomatic stages of ADAD. Eighty-one proteins were compared across asymptomatic mutation carriers (aMC, n = 15), symptomatic mutation carriers (sMC, n = 8) and related noncarriers (NC, n = 12). Proteins were also tested for associations with cognitive measures, brain amyloid deposition and glucose …

The Effects Of Testosterone Supplementation On Cognitive Functioning In Older Men, Eka Wahjoepramono, Prita Asih, Vilia Aniwiyanti, Kevin Taddei, Satvinder Dhaliwal, Stephanie Fuller, Jonathan Foster, Malcolm Carruthers, Giuseppe Verdile, Hamid R. Sohrabi, Ralph Martins

Research outputs 2014 to 2021

Reduction in testosterone levels in men during aging is associated with cognitive decline and risk of dementia. Animal studies have shown benefits for testosterone supplementation in improving cognition and reducing Alzheimer’s disease pathology. In a randomized, placebo-controlled, crossover study of men with subjective memory complaint and low testosterone levels, we investigated whether testosterone treatment significantly improved performance on various measures of cognitive functioning. Forty-four men were administered a battery of neuropsychological tests to establish the baseline prior to being randomly divided into two groups. The first group (Group A) received 24 weeks of testosterone treatment (T treatment) followed by 4 …

Heat-Mediated Reduction Of Apoptosis In Uvb-Damaged Keratinocytes In Vitro And In Human Skin Ex Vivo, Leslie Calapre, Elin S. Gray, Sandrine Kurdykowski, Anthony David, Prue Hart, Pascal Descargues, Mel R. Ziman

Research outputs 2014 to 2021

Background:

UV radiation induces significant DNA damage in keratinocytes and is a known risk factor for skin carcinogenesis. However, it has been reported previously that repeated and simultaneous exposure to UV and heat stress increases the rate of cutaneous tumour formation in mice. Since constant exposure to high temperatures and UV are often experienced in the environment, the effects of exposure to UV and heat needs to be clearly addressed in human epidermal cells.

Methods:

In this study, we determined the effects of repeated UVB exposure 1kJ/m2 followed by heat (39°C) to human keratinocytes. Normal human ex vivo skin models …

Aβ-Related Memory Decline In Apoe Ε4 Noncarriers: Implications For Alzheimer Disease, Yen Ying Lim, Simon Laws, Victor Villemagne, Robert Pietrzak, Tenielle Porter, David Ames, Christoher Fowler, Stephanie Rainey-Smith, Peter Snyder, Ralph Martins, Olivier Salvado, Pierrick Bourgeat, Christopher Rowe, Colin Masters, Paul Maruff

Research outputs 2014 to 2021

Objective:

As the absence of Aβ-related memory decline in APOE ϵ4 noncarriers may be due to the relative brevity of previous studies, we aimed to characterize Aβ-related cognitive decline over 72 months in APOE ϵ4 carriers and noncarriers who were cognitively normal (CN).

Methods:

CN older adults (n 423) underwent Aβ imaging and APOE genotyping. Participants completed comprehensive neuropsychological testing at baseline 18-, 36-, 54-, and 72-month assessments.

Results:

Relative to Aβ- CN ϵ4 noncarriers, both Aβ+ CN ϵ4 carriers and noncarriers showed significantly increased decline in measures of memory, language, and executive function as well as higher rates of …