Publications by authors named "Amanda Chapman"

Article Synopsis
  • The study examines the expression of HER2, an important biomarker for identifying and treating several types of cancers, including breast and gastroesophageal cancers, and its emerging relevance in other cancer types.
  • Conducted at a Canadian academic cancer center, the research sampled 499 solid tumors from adult patients between July 2020 and November 2023, excluding standard HER2-targeted malignancies.
  • Results indicated that HER2 expression levels varied across 42 cancer types, with a median turnaround time for test results being 18 days, which aligns with the feasibility for clinical decision-making.
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Background: Telehealth has undergone widespread implementation since 2020 and is considered an invaluable tool to improve access to healthcare, particularly in rural areas. However, telehealth's applicability may be limited for certain populations including those who live in rural, medically underserved communities. While broadband access is a recognized barrier, other important factors including age and education influence a person's ability or preference to engage with telehealth via video telehealth or a patient portal.

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Article Synopsis
  • Targeted protein degradation (TPD) is highlighted as a new therapeutic strategy using PROTAC technology to selectively degrade proteins in cells.
  • Researchers discovered small-molecule ligands that specifically target the E3 ligase KLHDC2, expanding the options available for TPD.
  • The study reveals how the KLHDC2 E3 ligase forms a dynamic tetrameric structure, which can be influenced by the interaction with substrates and ligands, enhancing our understanding of its functioning and potential applications.
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Introduction: During the pandemic, telehealth became critically important in care provision. Yet, research exposed the inequities facing various groups of people in terms of accessing telehealth. The purpose of this analysis was to examine the various dimensions of access that impact a person's ability to use and preference for telehealth.

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Objective: Rural populations faced unique challenges to healthcare access during the COVID-19 pandemic. This analysis assesses trends in digital health technology use at the onset of the pandemic and describes digital health behaviors among a cohort of patients within a rural integrated healthcare network throughout the first 3 years of the pandemic.

Methods: We used data from both the electronic health record (EHR) and a patient survey.

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Study Objective: To determine the optimal sedative dose of intranasal dexmedetomidine for children undergoing laceration repair.

Methods: This dose-ranging study employing the Bayesian Continual Reassessment Method enrolled children aged 0 to 10 years with a single laceration (<5 cm), requiring single-layer closure, who received topical anesthetic. Children were administered 1, 2, 3, or 4 mcg/kg intranasal dexmedetomidine.

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Developing affinity reagents recognizing and modulating G-protein coupled receptors (GPCR) function by traditional animal immunization or in vitro screening methods is challenging. Some anti-GPCR antibodies exist on the market, but the success rate of development is still poor compared with antibodies targeting soluble or peripherally anchored proteins. More importantly, most of these antibodies do not modulate GPCR function.

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Background: Pharmacists with competency in writing, publishing, and peer review are essential to continue advancing the pharmacy profession, but structured training of these skills may vary.

Objective: The authors set out to implement and assess the impact of a structured learning experience into a postgraduate year 1 pharmacy residency training program that provides tangible experience in the processes of scientific writing, publishing, and peer reviewing.

Methods: A quarterly pharmacy newsletter process was augmented to include an editorial board that consisted of residency trained pharmacists with varying levels of experience in scientific writing, publishing, and peer reviewing.

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Antibody (Ab) validation is the procedure in which an Ab is thoroughly assayed for sensitivity and specificity in a given application. Validation of Abs against post-translationally modified (PTM) targets is particularly challenging because it requires specifically prepared antigen. Here we describe a novel validation method using surrogate proteins in a Western blot.

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Background: Many patients near the end of life are subject to rapid response system (RRS) calls. A study was conducted in a large Sydney teaching hospital to identify a cutoff point that defines nonbeneficial treatment for older hospital patients receiving an RRS call, describe interventions administered, and measure the cost of hospitalization.

Methods: This was a retrospective cohort of 733 adult inpatients with data for the period three months before and after their last placed RRS call.

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Objective: The project aimed to improve the effectiveness of nutritional screening and assessment practices through clinical audits and the implementation of evidence-based practice recommendations.

Introduction: In the absence of optimal nutrition, health may decline and potentially manifest as adverse health outcomes. In a hospitalized person, poor nutrition may adversely impact on the person's outcome.

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Aim: To investigate associations between clinical parameters - beyond the evident physiological deterioration and limitations of medical treatment - with in-hospital death for patients receiving Rapid Response System (RRS) attendances.

Methods: Retrospective case-control analysis of clinical parameters for 328 patients aged 60 years and above at their last RRS call during admission to a single teaching hospital in the 2012-2013 calendar years. Generalised estimating equation modelling was used to compare the deceased with a randomly selected sample of those who had RRS calls and survived admission (controls), matched by age group, sex, and hospital ward.

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Background: Liverpool Hospital introduced the medical emergency team system in 1990 and it has recently been adopted at a national and international level. New South Wales, Australia, has introduced a standardised rapid response system in over 250 acutecare hospitals: the two-tiered (clinical review call [CRC] and rapid response call [RRC]) "between the flags" (BTF) program.

Objectives: To describe the effect of the introduction of a twotiered response to the deteriorating patient on the number of RRCs, cardiac arrests and hospital deaths.

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