Publications by authors named "Karen Forbes"

Objective: Type 2 diabetes (T2D) now accounts for the majority of pre-existing diabetes affecting pregnancy in the UK. Our aim was to determine its impact on pregnancy outcomes compared to type 1 diabetes (T1D), gestational diabetes (GDM) and non-diabetes pregnancies.

Data Sources: PubMed was searched 1 January 2009-2024.

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Background: GDM and preeclampsia are common complications of pregnancy, for which overweight/obesity is a common risk factor. Both conditions are associated with a two-to-four-fold increase in future incident heart failure, which may be linked to early maladaptive myocardial changes.

Objectives: To determine maternal myocardial structural, functional, and energetic responses to pregnancies complicated by gestational diabetes mellitus (GDM) or preeclampsia compared to healthy pregnancies (HP) at third-trimester of pregnancy and twelve-months postpartum.

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With the global prevalence of diabetes increasing, more people of reproductive age are experiencing hyperglycaemic pregnancies. Maternal Type 1 (T1DM) or Type 2 (T2DM) diabetes mellitus, and gestational diabetes mellitus (GDM) are associated with maternal cardiovascular and metabolic complications. Pregnancies complicated by maternal diabetes also increase the risk of short- and long-term health complications for the offspring, including altered fetal growth and the onset of T2DM and cardiometabolic diseases throughout life.

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Article Synopsis
  • Globally, while people are living longer, many experience a decline in health due to age-related diseases, highlighting the need for better classification systems to address these issues.
  • A consensus meeting with 150 experts established criteria for identifying ageing-related pathologies, requiring a 70% agreement for approval among participants.
  • The agreed criteria focus on conditions that progress with age, contribute to functional decline, and are backed by human studies, setting a foundation for future classification and staging efforts.
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Objective: Hospitalized children are a potentially underimmunized population. We sought to determine the proportion of patients admitted to our pediatric medicine inpatient units who are underimmunized or unimmunized and to identify barriers to immunization faced by families of children admitted to hospital.

Methods: We conducted a prospective study of children aged 2 months to 18 years admitted to our pediatric medicine inpatient units between July 2021 and October 2022.

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Cardiac fibroblasts are pivotal regulators of cardiac homeostasis and are essential in the repair of the heart after myocardial infarction (MI), but their function can also become dysregulated, leading to adverse cardiac remodelling involving both fibrosis and hypertrophy. MicroRNAs (miRNAs) are noncoding RNAs that target mRNAs to prevent their translation, with specific miRNAs showing differential expression and regulation in cardiovascular disease. Here, we show that miR-214-3p is enriched in the fibroblast fraction of the murine heart, and its levels are increased with cardiac remodelling associated with heart failure, or in the acute phase after experimental MI.

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Objective: To describe the characteristics of research training and scholarly activity during pediatrics residency in Canada and identify facilitators and barriers to resident scholarly activity.

Study Design: We conducted a mixed-methods, cross-sectional survey of pediatrics residents in Canada from April to June 2023. Trainees and medical education experts developed the 55-item survey, pilot tested, and distributed electronically to residents in all 17 Canadian residency programs.

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Background: Indigenous Peoples in Canada bear a disproportionate burden of disease and experience poorer health outcomes as compared to non-Indigenous populations within Canada; these conditions are said to be mediated and exacerbated by pervasive and uninterrupted anti-Indigenous racism. Third and fourth-year medical students at a Canadian medical school were asked to reflect on their experiences working with Indigenous patients in clinical settings, and how their preclinical Indigenous health curriculum impacted these experiences.

Method: Phenomenology was used, guided by Goffman's theory of social stigma.

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Objectives: Early' specialist palliative care (SPC) has been shown to improve outcomes for patients with advanced cancer, yet patients are often referred late. 'Enhanced supportive care' (ESC) aims to facilitate earlier integrated supportive care for those with incurable cancer. This study aimed to explore clinicians' understanding of ESC/SPC delivery through description of current service provision.

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What Was The Educational Challenge?: Medical students experience high rates of anxiety; frequent examinations are one contributing source. Students may perceive the observed structured clinical examinations (OSCEs) as particularly stressful. Strategies to reduce anxiety during OSCEs have not been described.

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Background: This study explores the impacts of the Council on Medical Student Education in Pediatrics (COMSEP) Journal Club, a unique means of providing monthly professional development for a large international community of pediatric undergraduate medical educators. In particular, we sought to establish member engagement with the Journal Club, identify factors impacting member contributions to the Journal Club, and determine perceived benefits of and barriers to participation as a Journal Club reviewer.

Methods: Using an established Annual Survey as a study instrument, six survey questions were distributed to members of COMSEP.

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Background And Aims: The World Health Assembly recommends integration of palliative care into treatment of patients with any life-limiting condition, yet patients with non-malignant disease are less likely to receive specialist palliative care (SPC). This study compares SPC offered to patients with hepatocellular carcinoma (HCC) versus patients with chronic liver disease without HCC (CLD without HCC).

Methods: Patients who died from CLD or HCC over 5 years (2013-2017) in England were identified using a dataset linking national data on all hospital admissions (Hospital Episode Statistics - HES) with national mortality data from the Office for National Statistics (HES - ONS).

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Article Synopsis
  • Surgeons often need special skills to talk to patients who are seriously ill, and this study looks at how training can help them do better.
  • The researchers found 46 studies that talked about different ways to train surgeons for better communication and care, but most had some flaws.
  • In the end, while there are training programs for surgeons, there's still not enough strong evidence that these trainings truly help patients, so more research is needed.
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Article Synopsis
  • The emergence of embryo implantation in mammals around 148 million years ago marked a significant change in reproductive strategies, but the molecular mechanisms behind this adaptation are still not fully understood.
  • Progesterone receptor signaling, crucial for mammal pregnancies, predates mammals but does not account for the diverse implantation methods seen in different species.
  • The study identifies 13 key microRNA gene families that originated with placental mammals, suggesting a dynamic miRNA network that responds to pregnancy signals and plays a crucial role in the distinct implantation strategies across various species like bovines and humans.
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In high income countries, approximately 10% of pregnancies are complicated by pre-eclampsia (PE), preterm birth (PTB), fetal growth restriction (FGR) and/or macrosomia resulting from gestational diabetes (GDM). Despite the burden of disease this places on pregnant people and their newborns, there are still few, if any, effective ways of preventing or treating these conditions. There are also gaps in our understanding of the underlying pathophysiologies and our ability to predict which mothers will be affected.

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Background: Clinical reasoning skills are essential to medical practice. The problem lies in assuming junior medical students with limited experience develop clinical reasoning and decision-making skills passively and solely through clinical exposure. To prepare learners for independent practice and care for future patients, explicit teaching and assessment of clinical reasoning in low-stakes, collaborative learning environments are needed.

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We tested the hypothesis that conserved placental mammal-specific microRNAs and their targets facilitate endometrial receptivity to implantation. Expression of miR-340-5p, -542-3p, and -671-5p was regulated by exposure of endometrial epithelial cells to progesterone (10 μg/ml) for 24 h coordinate with 1,713 of their predicted targets. Proteomic analysis of cells transfected with miRNA mimic/inhibitor (48 h: n = 3) revealed 1,745 proteins altered by miR-340-5p (mimic; 1,369, inhibitor; 376) of which 171 were predicted targets and P4-regulated.

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Transitions to roles with increasing clinical responsibility and independence can be anxiety provoking for many trainees. To support our pediatric residents preparing to transition from the role of junior to senior resident, we developed a novel asynchronous online interactive case-based resource. Our experience suggests that this resource was voluntarily utilized and can effectively increase trainee confidence and reduce anxiety about this key transitional stage.

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Objective: We investigated if women with gestational diabetes mellitus (GDM) in the third trimester of pregnancy exhibit adverse cardiac alterations in myocardial energetics, function, or tissue characteristics.

Research Design And Methods: Thirty-eight healthy, pregnant women and 30 women with GDM were recruited. Participants underwent phosphorus MRS and cardiovascular magnetic resonance for assessment of myocardial energetics (phosphocreatine [PCr] to ATP ratio), tissue characteristics, biventricular volumes and ejection fractions, left ventricular (LV) mass, global longitudinal shortening (GLS), and mitral in-flow E-wave to A-wave ratio.

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Scope: During pregnancy, mother-to-fetus transfer of nutrients is mediated by the placenta; sub-optimal placental development and/or function results in fetal growth restriction (FGR), and the attendant risk of stillbirth, neurodevelopmental delay, and non-communicable diseases in adulthood. A maternal diet high in fruit and vegetables lowers the risk of FGR but the association cannot be explained fully by known macro- and micronutrients.

Methods And Results: This study investigates if dietary-derived extracellular vesicles (EVs) can regulate placental function.

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Objective: There are many challenges in ensuring medical students learn paediatrics. Medical educators must develop and maintain curricula that meet learners' needs and accreditation requirements. Paediatricians and family physicians, practicing and teaching in busy clinical environments, require Canadian-relevant curricular guidance and resources to teach and assess learners.

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Background: The start of the COVID-19 pandemic led to both shortened clinical rotations and consequent loss of embedded formal teaching time. In response to these learning gaps, a novel, virtual pediatric bootcamp was developed to provide a consolidated 3-week learning opportunity for clinical medical students. Pre-clinical students were encouraged but not required to participate, given the suspension of clinical patient experiences for all undergraduate medical learners and the uncertainty of when clinical rotations would resume.

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