209 results match your criteria: "The Wellcome-Wolfson Institute[Affiliation]"

Purpose: In this study, we aimed to investigate the relationship between the intraocular levels of inflammatory factors and myopia-related retinal vascular and neuronal degeneration.

Patients And Methods: One hundred and forty-seven patients with Implantable Collamer Lens (ICL) implantation were enrolled and all participants received comprehensive ophthalmic examination. About 100~150 ul of aqueous humor was collected immediately before ICL surgery.

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Background: In Northern Ireland, approximately 550 people with cystic fibrosis (PwCF) attend the regional paediatric and adult centres within the Belfast Health and Social Care Trust. This autosomal recessive chronic condition necessitates regular clinical monitoring and a high treatment burden, as well as time implications for the maintenance of respiratory devices. Development of health literacy skills at an early age and promoting children with CF (CwCF) to take an active role in their healthcare has many advantages relating to their long-term self-care in preparation for transition from paediatric to adult care, decision-making and partnership engagement with the CF-multidisciplinary team (CF-MDT).

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Background And Objective: This study explored the relationship between total bacterial density, airway microbiota composition and clinical parameters in bronchiectasis. We determined changes with time during clinical stability and following antibiotic treatment of a pulmonary exacerbation.

Methods: We conducted a multicentre longitudinal cohort study of UK participants with CT confirmed bronchiectasis.

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Improving health literacy and stakeholder-directed knowledge of One Health through analysis of readability: a cross sectional infodemiology study.

Sci One Health

November 2024

Laboratory for Disinfection and Pathogen Elimination Studies, Northern Ireland Public Health Laboratory, Belfast City Hospital, Lisburn Road, Belfast, BT9 7AD, Northern Ireland, UK.

Background: The One Health approach involves collaboration across several sectors, including public health, veterinary and environmental sectors in an integrated manner. These sectors may be disparate and unrelated, however to succeed, all stakeholders need to understand what the other stakeholders are communicating. Likewise, it is important that there is public acceptance and support of One Health approaches, which requires effective communication between professional and institutional organisations and the public.

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Due to the complexity of wound healing, how to achieve successful healing is a significant clinical challenge. In this study, we found that the histone deacetylase-7-derived 7-amino acid peptide (7A, MHSPGAD), especially its phosphorylated version 7Ap (MH[pSer]PGAD), increased dermal fibroblast cell HDFα proliferation and migration via elevated delta-catenin (CTNND1) serine phosphorylation-mediated beta-catenin (CTNNB) nuclear translocation and subsequent upregulation of c-Myc and cyclin D1 expression. 7Ap physically interacted with platelet-derived growth factor receptor (PDGFR) and increased PDGFR interaction with cyclin-dependent kinase 6 (CDK6).

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Background: Fluid therapy is universally administered in the management of patients with sepsis, however excessive cumulative fluid balance has been shown to result in worse outcomes. Hyperoncotic albumin results in both lower fluid volumes and early cumulative fluid balance, and may reduce short-term mortality in patients with septic shock.

Methods: In this single centre, open label, feasibility trial; patients with early septic shock will be randomly allocated either 20% albumin for resuscitation and daily supplementation, versus buffered crystalloids alone for all fluid therapy.

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Protein O-GlcNAcylation coupled to Hippo signaling drives vascular dysfunction in diabetic retinopathy.

Nat Commun

October 2024

Department of Ophthalmology, Laboratory of Molecular Ophthalmology and Tianjin Key Laboratory of Ocular Trauma, Ministry of Education International Joint Laboratory of Ocular Diseases, Tianjin Medical University General Hospital, Tianjin, China.

Article Synopsis
  • Metabolic disorders contribute to diabetic vascular complications, particularly diabetic retinopathy, which is a major cause of blindness in working-age adults.
  • Researchers found high levels of O-GlcNAc modification in retina endothelial cells of individuals with diabetic retinopathy, and inhibiting this modification can improve vascular issues.
  • The study highlights how the O-GlcNAc modification affects the Hippo pathway proteins YAP and TAZ, promoting dysfunction through a process involving glucose metabolism and suggests targeting this pathway might offer new therapeutic options.
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Modulation of diabetes-related retinal pathophysiology by PTX3.

Proc Natl Acad Sci U S A

October 2024

The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast BT9 7BL, United Kingdom.

Diabetic retinopathy (DR) is a common complication of diabetes characterized by vascular pathology and neuroinflammation. Pentraxin 3 (PTX3) is a soluble pattern recognition molecule that functions at the crossroads between innate immunity, inflammation, and tissue remodeling. DR is known to involve inflammatory pathways, although the potential relevance of PTX3 has not been explored.

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Lack of correlation between surface water area and infection with and the non-tuberculous mycobacteria (NTMs) in patients with cystic fibrosis (CF).

Infect Med (Beijing)

September 2024

Laboratory for Disinfection and Pathogen Elimination Studies, Northern Ireland Public Health Laboratory, Belfast City Hospital, Lisburn Road, Belfast BT9 7AD, Northern Ireland, UK.

Background: People with cystic fibrosis (CF) may develop clinically significant chronic respiratory infections with (PA) and non-tuberculous mycobacteria (NTM). Open water has been suggested to be an important source for continuous or intermittent exposure to these pathogens. To date, there has been a paucity of studies examining the relationship between chronic PA and NTM infection in CF patients and surfaces waters, including blue spaces.

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Inflammation-driven diseases encompass a wide array of pathological conditions characterised by immune system dysregulation leading to tissue damage and dysfunction. Among the myriad of mediators involved in the regulation of inflammation, histamine has emerged as a key modulatory player. Histamine elicits its actions through four rhodopsin-like G-protein-coupled receptors (GPCRs), named chronologically in order of discovery as histamine H, H, H and H receptors (HR).

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Article Synopsis
  • * The cytokine IL-41, initially linked to adipose tissue, has been found to have immunomodulatory properties and was studied for its levels in blood and skin biopsies of SSc patients.
  • * Findings revealed lower levels of IL-41 in patients with diffuse SSc, suggesting it may act as an antifibrotic agent, while elevated levels of a related protein, mTOR, were noted in the skin of these patients.
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Article Synopsis
  • Vascular organoids (VOs) from induced pluripotent stem cells (iPSCs) show promise as models for studying human vascular diseases and drug testing, but their effectiveness in mimicking actual human conditions needs further exploration.
  • DB-VOs derived from diabetic patients were found to have impaired function compared to non-diabetic counterparts, displaying harmful traits such as high reactive oxygen
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Endothelial Cell Dysfunction: Onset, Progression, and Consequences.

Front Biosci (Landmark Ed)

June 2024

The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, BT9 7BL Belfast, UK.

Endothelial cell dysfunction is a complex process involving various causes, early and late events, and subsequent consequences. This review provides an overview of each aspect and outlines therapeutic interventions targeting these stages. Causes of endothelial dysfunction encompass a spectrum of risk factors including hypertension, diabetes, smoking, obesity, inflammation, oxidative stress, and genetic predispositions.

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Carriage of Neisseria meningitidis (meningococci) in the sputum of people with cystic fibrosis (CF): occupational health risks and mitigating interventions for physiotherapists.

Physiotherapy

September 2024

Laboratory for Disinfection and Pathogen Elimination Studies, Northern Ireland Public Health Laboratory, Belfast City Hospital, Lisburn Road, Belfast BT9 7AD, Northern Ireland, UK; School of Medicine, Dentistry and Biomedical Sciences, The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, UK; School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine BT52 1SA, Northern Ireland, UK.

Objectives: To estimate the carriage of Neisseira meningitidis (meningococci) in expectorated sputum from people with cystic fibrosis (CF) and to evaluate potential ramifications of such carriage for the health and (NM) wellbeing of physiotherapists performing airway clearance techniques.

Design: Descriptive observational study.

Main Outcome Measures: Meningococcal carriage rate, CFTR mutation type and time to first meningococcal culture were determined.

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The complement pathway as a therapeutic target for neovascular age-related macular degeneration-mediated subretinal fibrosis.

Curr Opin Pharmacol

June 2024

The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, United Kingdom. Electronic address:

Neovascular age-related macular degeneration (nAMD) is the leading cause of blindness in the elderly in developed countries. Intravitreal injection of VEGF inhibitors is the mainstream therapy for nAMD, although nearly 50% of the patients do not respond or respond poorly to the therapy. One of the main reasons for the poor outcome of the therapy is the development of subretinal macular fibrosis, a process of excessive deposition of extracellular matrix proteins around the diseased blood vessels.

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Consensus statement-graft treatment in cardiovascular bypass graft surgery.

Front Cardiovasc Med

February 2024

Department of Cardiovascular Surgery KFL, Vienna Health Network, Vienna, Austria.

Coronary artery bypass grafting (CABG) is and continues to be the preferred revascularization strategy in patients with multivessel disease. Graft selection has been shown to influence the outcomes following CABG. During the last almost 60 years saphenous vein grafts (SVG) together with the internal mammary artery have become the standard of care for patients undergoing CABG surgery.

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Circadian rhythms influence a range of biological processes within the body, with the central clock or suprachiasmatic nucleus (SCN) in the brain synchronising peripheral clocks around the body. These clocks are regulated by external cues, the most influential being the light/dark cycle, in order to synchronise with the external day. Chrono-tailored or circadian drug delivery systems (DDS) aim to optimise drug delivery by releasing drugs at specific times of day to align with circadian rhythms within the body.

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Incidence of tuberculosis in Europe 2001-2021 and relationship to gross domestic product (GDP)-the continued need for levelling-up between European nations.

Clin Microbiol Infect

April 2024

Laboratory for Disinfection and Pathogen Elimination Studies, Northern Ireland Public Health Laboratory, Belfast City Hospital, Belfast, Northern Ireland, UK; School of Medicine, Dentistry and Biomedical Sciences, The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, Belfast, Northern Ireland, UK; School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, UK.

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There is emerging evidence that amyloid beta protein (Aβ) and tau-related lesions in the retina are associated with Alzheimer's disease (AD). Aβ and hyperphosphorylated (p)-tau deposits have been described in the retina and were associated with small amyloid spots visualized by in vivo imaging techniques as well as degeneration of the retina. These changes correlate with brain amyloid deposition as determined by histological quantification, positron emission tomography (PET) or clinical diagnosis of AD.

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Importance: Patients with septic shock undergo adrenergic stress, which affects cardiac, immune, inflammatory, and metabolic pathways. β-Blockade may attenuate the adverse effects of catecholamine exposure and has been associated with reduced mortality.

Objectives: To assess the efficacy and safety of landiolol in patients with tachycardia and established septic shock requiring prolonged (>24 hours) vasopressor support.

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Article Synopsis
  • Understanding cardiovascular risk factors like diabetes in vascular cells is challenging due to limited disease models.
  • The review discusses the development of advanced 3D in vitro disease models using patient-derived stem cells, which better mimic human vascular issues compared to traditional 2D cultures.
  • It highlights the importance of including various cell types in these models to accurately represent conditions like diabetic vasculopathy and suggests strategies for creating organ-specific models to study different vascular complications.
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Article Synopsis
  • Some sick patients with kidney problems might need special treatments called renal-replacement therapy (RRT), but there's debate about which type is better.
  • A study compared two types of treatments: continuous renal replacement therapy (CRRT) and intermittent hemodialysis (IHD), to see which one helps patients more after 90 days.
  • The results showed that starting with CRRT was linked to a lower risk of dying or needing ongoing treatments compared to IHD, especially in helping patients not become dependent on RRT.
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The microvasculature plays a key role in tissue perfusion and exchange of gases and metabolites. In this study we use human blood vessel organoids (BVOs) as a model of the microvasculature. BVOs fully recapitulate key features of the human microvasculature, including the reliance of mature endothelial cells on glycolytic metabolism, as concluded from metabolic flux assays and mass spectrometry-based metabolomics using stable tracing of C-glucose.

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Long-acting microneedle formulations.

Adv Drug Deliv Rev

October 2023

School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK. Electronic address:

The minimally-invasive and painless nature of microneedle (MN) application has enabled the technology to obviate many issues with injectable drug delivery. MNs not only administer therapeutics directly into the dermal and ocular space, but they can also control the release profile of the active compound over a desired period. To enable prolonged delivery of payloads, various MN types have been proposed and evaluated, including dissolving MNs, polymeric MNs loaded or coated with nanoparticles, fast-separable MNs hollow MNs, and hydrogel MNs.

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