Enhanced Blood Pressure Acquisition

Blood pressure is considered a primary vital sign that is regularly monitored in a healthcare setting. Current blood pressure measurement equipment lacks reproducible measurements which leads to questionable accuracy. Therefore, there is a need for an accurate and reproducible blood pressure measurement device that can take remote measurements. This project will be designed in The University of Akron\u27s biomedical engineering capstone course. The goal of this senior design project is to design and fabricate a blood pressure measuring device that meets the customer requirements and engineering requirements identified by the team

'I didn't realise they had such a key role.' Impact of medical education curriculum change on medical student interactions with nurses: a qualitative exploratory study of student perceptions

Interprofessional teamwork between healthcare professionals is integral to the delivery of safe high-quality patient care in all settings. Recent reforms of medical education curricula incorporate specific educational opportunities that aim to foster successful interprofessional collaboration and teamwork. The aim of this study was to explore the impact of curriculum reform on medical students’ perceptions of their interactions and team-working with nurses. We gathered data from 12 semi-structured individual narrative interviews with a purposive sample of male (n = 6) and female (n = 6) medical students from fourth year (n = 6 following an integrated curriculum) and fifth year (n = 6 following a traditional curriculum). Data were subject to narrative analysis which was undertaken using NVivo software. Overall, there was no notable difference in the responses of the participants on the traditional and integrated curricula about their interactions and team work with nurses. However, the introduction of an integrated medical curriculum was viewed positively but a lack of interprofessional education with nursing students, removal of a nursing placement and shorter clinical placements were perceived as lost opportunities for the development of educationally beneficial relationships. The participants reported that nurses play a number of roles in clinical practice which underpin patient safety including being medical educators who provide a valuable source of support for medical students. The participants highlighted different factors that could hinder or foster effective working relationships such as a lack of understanding of nurses’ different professional roles and mutual respect. Medical education needs to provide students with more structured opportunities to work with and learn from nurses in clinical practice. Further research could explore how to foster positive relationships between medical students and nurses

Patient recall of receiving lifestyle advice for overweight and hypertension from their General Practitioner

BackgroundOverweight, obesity and hypertension can be prevented through improvements in lifestyle including nutrition and physical activity. General practitioners (GPs) in Australia have access to over 90% of the population in the course of a year and therefore, the general practice setting may be ideal to assist patients with lifestyle change for weight management and hypertension. The present study aimed to determine the proportion of overweight/obese patients that recalled receiving advice by their GP to make lifestyle changes for weight loss. Recall of advice received by hypertensive patients to reduce salt intake was also measured.MethodsA face to face survey was conducted on a representative sample (urban, suburban and rural) of South Australian residents. Respondents provided information on height and weight (self-report), whether they had received lifestyle advice from their GP for weight loss, and for those with self reported hypertension if they had received advice to reduce dietary salt.ResultsThe sample included 2947 South Australian adult residents (58% female; BMI (mean (SD)), 26.6 (5.3) kg/m2; age, 50.7 (18.0) years). Ninety-six percent had visited their GP in the past 12 months. Forty-one percent of males and 25% of females were overweight and 19% of males and 20% of females were obese. Twenty-seven percent of overweight/obese respondents reported receiving lifestyle advice for weight loss purposes. Of the 33% who reported they had hypertension, 34% reported receiving advice to reduce salt intake.ConclusionsLess than 1/3 of overweight/obese patients reported that they had received lifestyle advice that could assist with weight loss from their GP. About a third of respondents with hypertension reported that they received advice to reduce salt intake. There are potentially missed opportunities in which GPs could provide re-enforcement of benefits of lifestyle changes with respect to weight and blood pressure control.<br /

Risk prediction of late-onset Alzheimer’s disease implies an oligogenic architecture

© 2020, The Author(s). Genetic association studies have identified 44 common genome-wide significant risk loci for late-onset Alzheimer’s disease (LOAD). However, LOAD genetic architecture and prediction are unclear. Here we estimate the optimal P-threshold (Poptimal) of a genetic risk score (GRS) for prediction of LOAD in three independent datasets comprising 676 cases and 35,675 family history proxy cases. We show that the discriminative ability of GRS in LOAD prediction is maximised when selecting a small number of SNPs. Both simulation results and direct estimation indicate that the number of causal common SNPs for LOAD may be less than 100, suggesting LOAD is more oligogenic than polygenic. The best GRS explains approximately 75% of SNP-heritability, and individuals in the top decile of GRS have ten-fold increased odds when compared to those in the bottom decile. In addition, 14 variants are identified that contribute to both LOAD risk and age at onset of LOAD

A metagenomic assessment of winter and summer bacterioplankton from Antarctica Peninsula coastal surface waters

© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in The ISME Journal 6 (2012): 1901-1915, doi:10.1038/ismej.2012.31.Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacterioplankton in winter when darkness and sea-ice cover inhibit photoautotrophic primary production. We report here an environmental genomic and small subunit ribosomal RNA (SSU rRNA) analysis of winter and summer Antarctic Peninsula coastal seawater bacterioplankton. Intense inter-seasonal differences were reflected through shifts in community composition and functional capacities encoded in winter and summer environmental genomes with significantly higher phylogenetic and functional diversity in winter. In general, inferred metabolisms of summer bacterioplankton were characterized by chemoheterotrophy, photoheterotrophy and aerobic anoxygenic photosynthesis while the winter community included the capacity for bacterial and archaeal chemolithoautotrophy. Chemolithoautotrophic pathways were dominant in winter and were similar to those recently reported in global ‘dark ocean’ mesopelagic waters. If chemolithoautotrophy is widespread in the Southern Ocean in winter, this process may be a previously unaccounted carbon sink and may help account for the unexplained anomalies in surface inorganic nitrogen content.CSR was supported by an NSF Postdoctoral Fellowship in Biological Informatics (DBI-0532893). The research was supported by National Science Foundation awards: ANT 0632389 (to AEM and JJG), and ANT 0632278 and 0217282 (to HWD), all from the Antarctic Organisms and Ecosystems Program

HER2-enriched subtype and novel molecular subgroups drive aromatase inhibitor resistance and an increased risk of relapse in early ER+/HER2+ breast cancer

BACKGROUND: Oestrogen receptor positive/ human epidermal growth factor receptor positive (ER+/HER2+) breast cancers (BCs) are less responsive to endocrine therapy than ER+/HER2- tumours. Mechanisms underpinning the differential behaviour of ER+HER2+ tumours are poorly characterised. Our aim was to identify biomarkers of response to 2 weeks’ presurgical AI treatment in ER+/HER2+ BCs. METHODS: All available ER+/HER2+ BC baseline tumours (n=342) in the POETIC trial were gene expression profiled using BC360™ (NanoString) covering intrinsic subtypes and 46 key biological signatures. Early response to AI was assessed by changes in Ki67 expression and residual Ki67 at 2 weeks (Ki672wk). Time-To-Recurrence (TTR) was estimated using Kaplan-Meier methods and Cox models adjusted for standard clinicopathological variables. New molecular subgroups (MS) were identified using consensus clustering. FINDINGS: HER2-enriched (HER2-E) subtype BCs (44.7% of the total) showed poorer Ki67 response and higher Ki672wk (p<0.0001) than non-HER2-E BCs. High expression of ERBB2 expression, homologous recombination deficiency (HRD) and TP53 mutational score were associated with poor response and immune-related signatures with High Ki672wk. Five new MS that were associated with differential response to AI were identified. HER2-E had significantly poorer TTR compared to Luminal BCs (HR 2.55, 95% CI 1.14–5.69; p=0.0222). The new MS were independent predictors of TTR, adding significant value beyond intrinsic subtypes. INTERPRETATION: Our results show HER2-E as a standardised biomarker associated with poor response to AI and worse outcome in ER+/HER2+. HRD, TP53 mutational score and immune-tumour tolerance are predictive biomarkers for poor response to AI. Lastly, novel MS identify additional non-HER2-E tumours not responding to AI with an increased risk of relapse

Somatostatin receptor subtype mRNA expression in human colorectal cancer

Cancer of the gastrointestinal tract is a common cause of cancer related mortality and morbidity.Manipulation of the cellular response to native peptides provides the basis for the development of alternative treatment strategies. This thesis investigates the cellular basis for using the growth inhibitory peptide somatostatin for the treatment of advanced gastrointestinal malignancies.The somatostatin receptor is the key to predicting the effect of somatostatin or its analogues in cancer therapy. This thesis determines the distribution of the somatostatin receptor subtypes in human colorectal cancer primary tumours, metastases and normal mucosa using the molecular methods of reverse-transcription polymerase chain reaction and in situ hybridisation. In situ hybridisation has not previously been used to study the human colon and our protocol differs from (and is probably superior to) the standard.The results indicate near ubiquitous expression of somatostatin receptor subtype 2 throughout normal and malignant epithelia plus dense stromal staining. Although expression is universal, treatment with somatostatin analogues is well tolerated and there may still be a role for the use of somatostatin analogues in metastatic disease. Receptor subtype 5 is expressed by significantly fewer advanced tumours and metastases and may have a role as a tumour supressor. Receptor subtypes 1, 3 and 4 are expressed infrequently in no discernible pattern. The project adds to available information on tissue distribution of somatostatin receptor subtypes.</p

Emotional socialisation and burnout in medicine and the role of medical educators

The authors highlight the importance of exploring the role that nurses and other healthcare professionals play in supporting medical students and doctors to develop their emotional competence