Publications by authors named "Chambers E"

Previous research has demonstrated that social determinants of health are drivers of medical utilization, cost, and health outcomes. In this study, we compared the mean annual total cost to deliver health services per patient by health-related social need (HRSN) status and total HRSNs using linear regression and ANOVA, respectively. Patients with ≥1 HRSN (n = 8409) yielded $1772 higher annual costs compared to patients without HRSNs (n = 34 775) (P < .

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  • Natural killer (NK) cells play a crucial role in managing both viral infections and immune responses during kidney transplants in children, as shown in a study using data from the CTOTC project.
  • The study analyzed NK cell phenotypes in 98 pediatric kidney transplant patients and found specific NK cell traits linked to either viral infections or alloimmune events, such as acute rejection.
  • These findings suggest that understanding NK cell profiles could help distinguish between risk factors for infections versus those for immune responses after transplantation.
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  • The study investigates how different types of senescent cells in the skin contribute to the development of cancer in patients with Familial Melanoma Syndrome (FMS), who have defects in the CDKN2A gene.
  • Melanocytes from FMS patients show lower p16 levels and higher DNA damage markers compared to fibroblasts, while patient fibroblasts also exhibit unusual behaviors, such as increased replicative capacity and defective senescence.
  • The findings suggest that the combination of DNA damage in melanocytes and impaired senescence in fibroblasts may weaken the immune response and enhance the risk of melanoma in these patients.
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Background And Aims: Physiological shear stress promotes vascular homeostasis by inducing protective molecules in endothelial cells (EC). However, physiological shear stress has been linked to atherosclerosis progression in some individuals with heightened cardiovascular risk. To address this apparent paradox, we hypothesized that diseased arteries may exhibit reduced responsiveness to the protective effects of physiological shear stress.

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Background: Obesity drives metabolic disease development. Preventing weight gain during early adulthood could mitigate later-life chronic disease risk. Increased dietary fibre intake, leading to enhanced colonic microbial fermentation and short-chain fatty acid (SCFA) production, is associated with lower body weight.

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Objective: To characterise the association between risk of poor glycaemic control and self-reported and area-level food insecurity among adult patients with type 2 diabetes.

Design: We performed a retrospective, observational analysis of cross-sectional data routinely collected within a health system. Logistic regressions estimated the association between glycaemic control and the dual effect of measures of food insecurity.

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Purpose: The current study examined associations of social and built features of neighborhood environments with psychological distress 6 years later and whether these associations were explained by stress and social factors, among Hispanic/Latino adults from the HCHS/SOL and SOL CASAS Ancillary Study.

Methods: In the SOL CASAS Ancillary Study, HCHS/SOL San Diego participants' baseline (2008-2011) home addresses were geocoded, neighborhoods were defined using 800 m radial buffers, and variables representing neighborhood socioeconomic deprivation, social disorder, walkability, and greenness were created. Psychological distress (anxiety and depression symptoms) and proposed pathway variables chronic stress, social support, and family cohesion were assessed at HCHS/SOL Visit 2 (2014-2017).

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Background: Atherosclerotic plaques form unevenly due to disturbed blood flow, causing localized endothelial cell (EC) dysfunction. Obesity exacerbates this process, but the underlying molecular mechanisms are unclear. The transcription factor EPAS1 (HIF2A) has regulatory roles in endothelium, but its involvement in atherosclerosis remains unexplored.

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People with disabilities are considered a historically marginalized population that experiences significant health disparities resulting from the unequal distribution of resources as evidenced in the social determinants of health. Health professions education presents an opportunity to explore the policy, systems, and environmental changes that are needed to improve social conditions and address known disparities for people with disabilities. Evidence suggests that inclusion of learners with diverse lived experiences, including students with disabilities, strengthens our understanding of the influence of social determinants on health and our ability to address known barriers.

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Cycle threshold (CT) refers to the number of cycles in a reverse transcriptase polymerase chain reaction (RT-PCR) assay needed to amplify viral RNA and can be used to indicate viral load. CT is inversely related to viral load, where lower CT values indicate higher viral levels. Data suggest lower CT scores are associated with worse outcomes in COVID; however, quantitative CT scores are not typically reported to patients.

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Separating plasma from whole blood is an important sample processing technique required for fundamental biomedical research, medical diagnostics, and therapeutic applications. Traditional protocols for plasma isolation require multiple centrifugation steps or multiunit microfluidic processing to sequentially remove large red blood cells (RBCs) and white blood cells (WBCs), followed by the removal of small platelets. Here, we present an acoustofluidic platform capable of efficiently removing RBCs, WBCs, and platelets from whole blood in a single step.

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Objective: Asthma is a major global disease affecting adults and children, which can lead to hospitalization and death due to breathing difficulties. Although targeted monoclonal antibody therapies have revolutionized treatment of severe asthma, some patients still fail to respond. Here we critically evaluate the literature on biologic therapy failure in asthma patients with particular reference to anti-drug antibody production, and subsequent loss of response, as the potential primary cause of drug failure in asthma patients.

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  • The human ileum has a lot of L-cells that produce hormones like GLP-1 and PYY, which help suppress appetite when we eat.
  • A study explored how different diets (high-fiber vs. low-fiber) affect the release of these hormones and their connection to food structure and ileal metabolites.
  • Results showed that high-fiber diets significantly boosted PYY release compared to low-fiber, and the study found changes in the ileum's molecular environment after eating, linking it to appetite regulation.
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  • Quality smoking data from primary care practices (PCPs) is vital for evaluating health risks and intervention eligibility, yet its accuracy is largely unverified.
  • A two-stage review compared smoking information from PCPs with that obtained during a Māori and Pacific Abdominal Aortic Aneurysm (AAA) screening, revealing an 82% concordance in data quality.
  • Results indicated significant gaps in the PCP records, with many current and ex-smokers misclassified, and critical details like smoking duration and quit dates often missing.
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  • - Vaccine development for SARS-CoV-2 in 2020 was essential for reducing COVID-19 severity, with the U.K. primarily using Pfizer's BNT162b2 and Oxford/AstraZeneca's ChAdOx1-nCoV-19 vaccines during the initial roll-out.
  • - A study analyzed the effects of age, sex, BMI, and pre-vaccination antibody levels on immune responses in participants, revealing that younger age and existing antibodies led to stronger antibody responses.
  • - Findings showed that the Pfizer vaccine produced higher antibody levels compared to the AstraZeneca vaccine, but age and BMI negatively impacted both cellular and humoral responses to vaccination.
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Introduction: Screening for health-related social needs (HRSNs) within health systems is a widely accepted recommendation, however challenging to implement. Aggregate area-level metrics of social determinants of health (SDoH) are easily accessible and have been used as proxies in the interim. However, gaps remain in our understanding of the relationships between these measurement methodologies.

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Purpose: To explore the nature and meaning of metaphors used by parents of children with disabilities when describing their healthcare experiences.

Method: A systematic procedure was used to identify and analyze metaphors spontaneously mentioned by parents in 13 focus groups held with 65 Canadian parents of children with disabilities. Attention was paid to identifying deep (i.

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Background: When healthcare providers (HCPs) become patients, the experience affects their sense of identity, the care they receive, and their clinical practice. In child health, considerably less is known about the experiences of HCP-parents who access the pediatric healthcare system with their own children with disabilities and/or chronic medical conditions.

Aims: This study aimed to examine the experiences of HCPs who have children with disabilities to identify their experiences with healthcare delivery.

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Background: In recent years, health systems have expanded the focus on health equity to include health-related social needs (HRSNs) screening. Community health workers (CHWs) are positioned to address HRSNs by serving as linkages between health systems, social services, and the community. This study describes a health system's 12-month experience integrating CHWs to navigate HRSNs among primary care patients in Bronx County, NY.

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Children with chronic health conditions (CHCs) are a high-resource population, and further data are needed to identify associations between CHC diagnoses and social needs to optimize health outcomes. In this cross-sectional study of 19 779 pediatric patients screened for social needs in an urban health system, we used logistic regression to evaluate CHC diagnoses and social need. Our independent variables were CHC diagnoses.

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  • This study analyzed how well serum creatinine (Cr) and cystatin C (CysC)-based estimates of glomerular filtration rate (GFR) perform compared to measured GFR (mGFR) in pediatric kidney transplant patients.
  • The results indicated that the CysC-based method (Gentian CysC) showed good accuracy and low bias, especially in patients with histological changes, making it a potentially better option for monitoring kidney function.
  • Overall, the findings suggest that CysC-based equations could provide more reliable GFR estimates, which can be crucial for early detection and intervention in transplant patients.
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Background: Atrial fibrillation (AF) screening was incorporated into an abdominal aortic aneurysm screening (AAA) program for New Zealand (NZ) Māori.

Methods: AF screening was performed as an adjunct to AAA screening of Māori men aged 60-74 years and women aged 65-74 years registered with primary health care practices in Auckland, NZ. Pre-existing AF was determined through coded diagnoses or medications in the participant's primary care record.

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Vitamin D replacement in older insufficient adults significantly improves their antigen-specific varicella zoster virus (VZV) cutaneous immunity. However, the mechanisms involved in this enhancement of cutaneous immunity are not known. Here, we show for the first time that vitamin D blocks the senescence-associated secretory phenotype (SASP) production by senescent fibroblasts by partially inhibiting the p38 MAPK pathway.

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Background: Some research has been undertaken into the mechanisms that shape successful participatory approaches in the context of efforts to improve health and social care. However, greater attention needs to be directed to how partnerships between researchers and user-led organisations (ULOs) might best be formed, practiced, managed, and assessed. We explored whether political economist Elinor Ostrom's Nobel prize winning analysis of common pool resource management-specifically eight principles to enhance collaborative group working as derived from her empirical research-could be usefully applied within a user-led project aiming to co-design new services to support more inclusive involvement of Disabled people in decision-making processes in policy and practice.

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