Publications by authors named "McDonnell T"

Article Synopsis
  • * The review analyzed 204 papers, selecting 18 that demonstrated a wide range in self-harm rates—between 1.5% and 23% among adolescents (ages 15-18), with higher incidents reported in females and often occurring at home.
  • * Findings highlighted that while many youths sought help from friends or family before or after self-harm episodes, professional help was rarely pursued, underscoring the need for better psychoeducation for families and enhanced mental health services.
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Context: 11-oxygenated androgens are a group of adrenal-derived steroids that require peripheral activation. In vitro data highlight a putative role for 11β-hydroxysteroid dehydrogenase type 2 (HSD11B2) in 11-oxygenated androgen biosynthesis, converting 11β-hydroxyandrostenedione (11OHA4) to 11-ketoandrostenedione (11KA4), the direct precursor of the potent androgen 11-ketotestosterone (11KT). As the kidney is the major site of HSD11B2 expression, we hypothesized that patients with chronic kidney disease (CKD) would have reduced 11-oxygenated androgen biosynthesis due to impaired HSD11B2 activity.

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  • Hypopituitarism is a disorder marked by low levels of one or more anterior pituitary hormones, with notable differences in health outcomes between sexes; women experience higher rates of cardiovascular issues and higher mortality.
  • The dysfunction of the hypothalamic-pituitary-gonadal (HPG) axis leads to hormonal deficiencies (like estrogen and testosterone), and treating these deficiencies with hormone replacement therapy is crucial for health benefits.
  • Despite the positive effects of hormone replacement in reducing mortality risk, the reasons behind the sex disparities in health outcomes for hypopituitarism patients remain unclear, with possibilities including lack of aggressive treatment for women and premature loss of protective estrogen effects.
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  • The study evaluates risks associated with Chronic Kidney Disease (CKD) across different primary renal diseases using data from a UK cohort of nearly 3,000 adults.
  • It found that over a median follow-up of about 49 months, many participants experienced kidney failure or death, with significant differences in risk based on the primary renal diagnosis (PRD), even after adjusting for factors like age and blood pressure.
  • The research highlights that while eGFR is a reliable predictor of kidney outcomes, the effectiveness of albuminuria (uACR) as a predictive marker varies greatly depending on the type of kidney disease, suggesting that personalized treatment strategies are essential in CKD management.
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Aims: Akathisia is a disturbing, reversible but under-diagnosed extrapyramidal side effect of medications used in palliative medicine. We assessed patients' subjective experience of akathisia and response to procyclidine, an anticholinergic used to treat extrapyramidal effects. We also aimed to discuss future areas of research and alternatives to akathisia-causing medications.

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Recent introduction of 2 different lymphoma classifications has raised concerns about consistency in diagnosis, management, and clinical trial enrollment. Data from a large cohort reflecting real-world clinical practice suggest that differences between the classifications will affect <1% of non-Hodgkin lymphomas.

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  • Racial and ethnic minorities are significantly underrepresented in cancer clinical trials, particularly due to restrictive eligibility criteria that often exclude patients who might benefit the most from treatments.
  • A study found that up to 24% of patients with diffuse large B-cell lymphoma would be disqualified from recent trials based on five specific lab criteria, leading to worse outcomes and increased deaths among these excluded groups.
  • Analysis revealed that Black/African American and Hispanic patients experienced higher rates of ineligibility compared to non-Hispanic White patients, highlighting a critical need to reevaluate how eligibility criteria are established to ensure equitable access to clinical trials across all demographics.
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C-reactive protein (CRP) is an inflammatory biomarker with associated clinical utility in a wide number of inflammatory disorders, including rheumatoid arthritis (RA). The interaction of CRP with pro-inflammatory cytokines has been explored before, however its role in complement regulation is more subtle, where CRP is capable of both up and downregulating the complement cascade. CRP is produced in a pentameric form and can dissociate to a monomeric form in circulation which has significant implications for its ability to interact with receptors and binding partners.

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Background/aim: In this cross-sectional study, it was aimed to test the predictive value of noncriteria antiphospholipid antibodies (aPL) in addition to the global antiphospholipid syndrome score (GAPSS) in predicting vascular thrombosis (VT) in a cohort of patients with APS and aPL (+) systemic lupus erythematosus (SLE).

Material And Methods: This study included 50 patients with primary APS, 68 with SLE/APS, and 52 with aPL (+) SLE who were classified according to VT as VT ± pregnancy morbidity (PM), PM only or aPL (+) SLE. Antiphospholipid serology consisting of lupus anticoagulant (LA), anticardiolipin (aCL) immunoglobulin G (IgG)/IgM/IgA, antibeta2 glycoprotein I (aβ2GPI) IgG/IgM/IgA, antiphosphatidylserine/prothrombin (aPS/PT) IgG/IgM and antidomain-I (aDI) IgG was determined for each patient.

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Background: Females diagnosed with systemic lupus erythematosus (SLE) face an elevated risk of adverse pregnancy outcomes (APOs). However, the evidence regarding whether a similar association exists in patients with undifferentiated connective tissue disease (UCTD) is inconclusive.

Methods: We conducted a retrospective review (2006-2019) of pregnancy outcomes among patients with SLE (n = 51) and UCTD (n = 20) within our institution.

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Metabolic programming is important for B cell fate, but the bioenergetic requirement for regulatory B (B) cell differentiation and function is unknown. Here we show that B cell differentiation, unlike non-B cells, relies on mitochondrial electron transport and homeostatic levels of reactive oxygen species (ROS). Single-cell RNA sequencing analysis revealed that TXN, encoding the metabolic redox protein thioredoxin (Trx), is highly expressed by B cells, unlike Trx inhibitor TXNIP which was downregulated.

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To address the current and long-term unmet health needs of the growing population of non-Hodgkin lymphoma (NHL) patients, we established the Lymphoma Epidemiology of Outcomes (LEO) cohort study (NCT02736357; https://leocohort.org/). A total of 7735 newly diagnosed patients aged 18 years and older with NHL were prospectively enrolled from 7/1/2015 to 5/31/2020 at 8 academic centers in the United States.

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Background: Chronic obstructive pulmonary disease (COPD) is the the most common disease-specific cause of adult emergency hospital admissions in Ireland. Preliminary groundwork indicated that treatment of acute exacerbations of COPD (AECOPD) in Ireland is not standardised between public hospitals. Applying Institute for Healthcare Improvement Breakthrough Series and Model for Improvement methodologies, Royal College of Physicians of Ireland designed and conducted a novel flexible and adaptive quality improvement (QI) collaborative which, using embedded evaluation, aimed to deliver QI teaching to enable teams to implement bespoke, locally applicable changes to improve and standardise acute COPD care at presentation, admission and discharge stages within their hospitals.

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Introduction: Focal segmental glomerulosclerosis (FSGS) is one of the leading causes of nephrotic syndrome in adults. This epidemiological study describes a renal centre's 20-year experience of primary FSGS.

Methods: Patients were identified with a diagnosis of primary FSGS after exclusion of known secondary causes.

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Introduction: Thromboembolic events (TEEs) are a serious and potentially fatal complication of nephrotic syndrome (NS). Despite this, there is a lack of evidence examining the benefits of prophylactic anticoagulation (PAC) in NS. It was our objective to review the risk factors, rates of TEEs, and patterns of PAC in patients with primary NS, with the aim to provide a pragmatic approach to PAC in primary NS.

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Female androgen excess typically presents with hirsutism, acne, and frontotemporal alopecia. Although the majority of cases are due to underlying polycystic ovary syndrome, non-polycystic ovary syndrome pathology can present a diagnostic and therapeutic challenge. We present 3 cases highlighting the utility of GnRH analogues in diagnosis and treatment of ovarian hyperandrogenism.

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Article Synopsis
  • Mantle cell lymphoma (MCL) shows diverse clinical and biological characteristics, complicating therapy choices, especially for older patients.
  • In a study of patients aged 60 and older treated with bendamustine and rituximab, key prognostic indicators included the simplified MCL international prognostic index (s-MIPI), MCL35 score, and blastoid cytology, which correlated with survival outcomes.
  • Combining robust proliferation assays like MCL35 with cytological evaluations and MIPI could help better classify and manage the risks of older MCL patients in future clinical trials.
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Background: In May 2021, the Irish public health service was the target of a cyber-attack. The response by the health service resulted in the widespread removal of access to ICT systems. While services including radiology, diagnostics, maternity, and oncology were prioritised for reinstatement, recovery efforts continued for over four months.

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Archaeological remains can preserve some proteins into deep time, offering remarkable opportunities for probing past events in human history. Recovering functional proteins from skeletal tissues could uncover a molecular memory related to the life-history of the associated remains. We demonstrate affinity purification of whole antibody molecules from medieval human teeth, dating to the 13-15 centuries, from skeletons with different putative pathologies.

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Background: Dietary intake during early childhood can have implications on child health and developmental trajectories. Early childhood education and care (ECEC) services are recommended settings to deliver healthy eating interventions as they provide access to many children during this important period. Healthy eating interventions delivered in ECEC settings can include strategies targeting the curriculum (e.

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Membranous nephropathy (MN) is the most prevalent cause of nephrotic syndrome amongst the non-diabetic adult population. A fifth of idiopathic nephrotic syndrome cases can be attributed to MN, rising to more than 40% in older patients over 60 years. Most MN cases are classified as being of a primary cause, where there is absence of a secondary disease process explaining its manifestation.

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Background: General practitioners (GP) report multiple challenges when treating individuals with intellectual disabilities which may influence referral rates. The study aimed to establish factors that influence GP's decision-making when referring a child with intellectual disabilities to the emergency department.

Method: Discrete choice experiments (DCEs) are increasingly used in health research to further understand complex decision making.

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Introduction: Composite indicators of quality and safety in healthcare summarise performance across multiple indicators into a single performance measure. Composite indicators can identify domains and drivers of quality, improve the ability to detect differences, aid prioritisation for quality improvement and facilitate decision making about future healthcare needs. However, the use of composite indicators can be controversial, particularly when used to rank healthcare providers.

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