Publications by authors named "Brosnan C"

Nanoparticle-mediated delivery of nucleic acids and proteins into intact plants has the potential to modify metabolic pathways and confer desirable traits in crops. Here we show that layered double hydroxide (LDH) nanosheets coated with lysozyme are actively taken up into the root tip, root hairs and lateral root junctions by endocytosis, and translocate via an active membrane trafficking pathway in plants. Lysozyme coating enhanced nanosheet uptake by (1) loosening the plant cell wall and (2) stimulating the expression of endocytosis and other membrane trafficking genes.

View Article and Find Full Text PDF

Introduction: Telehealth has the potential to improve access to mental health care, especially for people living in rural and remote regions. Yet, telehealth accessibility remains a challenge in Australia, and there is a scarcity of appropriate, psychometrically sound tools for evaluating telehealth use by mental health service users. The aim of this study was to adapt and validate a scale for measuring factors associated with mental healthcare telehealth use.

View Article and Find Full Text PDF

The orthotospovirus capsicum chlorosis virus (CaCV) is an important pathogen affecting capsicum plants. Elevated temperatures may affect disease progression and pose a potential challenge to capsicum production. To date, CaCV-resistant capsicum breeding lines have been established; however, the impact of an elevated temperature of 35 °C on this genetic resistance remains unexplored.

View Article and Find Full Text PDF

Background And Purpose: World Health Organization (WHO) grade 2 and 3 diffuse gliomas account for approximately 5% of primary brain tumors. They are invasive and infiltrative tumors and have considerable morbidity, causing progressive neurologic deterioration. The mean survival time is <10 years from diagnosis.

View Article and Find Full Text PDF

There is growing evidence that the uptake and use of telehealth is influenced by the distinct specialty area or type of healthcare service provided, with mental health services presenting particular challenges. However, little is known about how telehealth use differs between different mental health professions, and no qualitative research has explored variations in telehealth use and perspectives at the profession level within Australian mental health services. To address this gap, we analyzed transcripts from 19 semi-structured interviews conducted with mental healthcare professionals in a local health district within New South Wales, Australia.

View Article and Find Full Text PDF

Background: We present a unique case of spontaneous intracranial hypotension (SIH) presenting with acute collapse and loss of consciousness.

Case Description: The affected patient suffered an abrupt decline in level of consciousness several weeks after initial diagnosis. The patient was urgently transferred to a specialist neurosurgical unit.

View Article and Find Full Text PDF

Global food production is at risk from many abiotic and biotic stresses and can be affected by multiple stresses simultaneously. Virus diseases damage cultivated plants and decrease the marketable quality of produce. Importantly, the progression of virus diseases is strongly affected by changing climate conditions.

View Article and Find Full Text PDF

The ability to balance conflicting functional demands is critical for ensuring organismal survival. The transcription and repair of the mitochondrial genome (mtDNA) requires separate enzymatic activities that can sterically compete, suggesting a life-long trade-off between these two processes. Here in Caenorhabditis elegans, we find that the bZIP transcription factor ATFS-1/Atf5 (refs.

View Article and Find Full Text PDF

Purpose: Respiratory mechanics and the role of sex hormones in pregnancy are not well elucidated. We examined longitudinal and positional changes in lung mechanics in pregnancy and investigated the role of sex hormones.

Methods: A longitudinal study enrolled 135 women with obesity in early pregnancy.

View Article and Find Full Text PDF

In RNA interference (RNAi), small interfering RNAs (siRNAs) produced from double-stranded RNA guide ARGONAUTE (AGO) proteins to silence sequence-complementary RNA/DNA. RNAi can propagate locally and systemically in plants, but despite recent advances in our understanding of the underlying mechanisms, basic questions remain unaddressed. For instance, RNAi is inferred to diffuse through plasmodesmata (PDs), yet how its dynamics in planta compares with that of established symplastic diffusion markers remains unknown.

View Article and Find Full Text PDF

Background: Medical students from affluent and highly educated backgrounds remain overrepresented in Canadian medical schools despite widespread efforts to improve diversity. Little is known of the medical school experiences of students who are first in their family (FiF) to attend university. Drawing on Bourdieu and a critically reflexive lens, this study explored the experiences of FiF students in a Canadian medical school to better understand the ways in which the medical school environment can be exclusive and inequitable to underrepresented students.

View Article and Find Full Text PDF

India's public health system aims to foster pluralism by integrating AYUSH (Ayurveda, Yoga & Naturopathy, Unani, Siddha, and Homeopathy) with mainstream biomedical care. This policy change provides an opportunity to explore the complexity of health system innovation, addressing the relationship between biomedicine and complementary or alternative medicine. Implementing health policy depends on local, societal, and political contexts that shape intervention in practice.

View Article and Find Full Text PDF

Research on why people use complementary and alternative medicine (CAM) shows clients value the CAM consultation, where they feel listened to and empowered to control their own health. Such 'empowerment' through CAM use is often theorised as reflecting wider neoliberal imperatives of self-responsibility. CAM users' perspectives are well studied, but there has been little sociological analysis of interactions within the CAM consultation.

View Article and Find Full Text PDF

Background: The COVID-19 pandemic produced unprecedented challenges to healthcare systems. These challenges were amplified in the setting of endovascular thrombectomy (EVT) for large vessel occlusion strokes given the time-sensitive nature of the procedure.

Aims: To assess the impact of the COVID-19 pandemic on service provision at the primary endovascular stroke centre in Ireland.

View Article and Find Full Text PDF

There is increasing recognition of the salience of eHealth technologies in enhancing health service capacity. Yet social work remains "behind the curve" in progressing digital practices. As the demand for digital health care increases, particularly following COVID-19, it is becoming increasingly urgent to understand how social workers engage with eHealth technologies, and how technological engagement impacts on social work practice.

View Article and Find Full Text PDF

Background: Complementary Medicine (CM) is widely used internationally but there is limited understanding of the forms of knowledge CM practitioners use in their clinical practice and how they use this knowledge in interactions with patients. This review aims to synthesise the existing evidence on the forms of knowledge that are mobilised, and the role of this knowledge in the interactions between practitioners and patients during CM consultations. It considered a diverse range of CM practice areas to develop a classification of CM practitioners' knowledge use in consultations.

View Article and Find Full Text PDF

RNA interference (RNAi) is a powerful tool that is being increasingly utilized for crop protection against viruses, fungal pathogens, and insect pests. The non-transgenic approach of spray-induced gene silencing (SIGS), which relies on spray application of double-stranded RNA (dsRNA) to induce RNAi, has come to prominence due to its safety and environmental benefits in addition to its wide host range and high target specificity. However, along with promising results in recent studies, several factors limiting SIGS RNAi efficiency have been recognized in insects and plants.

View Article and Find Full Text PDF

Background: The presence of diffuse biliary stricturing in Primary Sclerosing Cholangitis (PSC) makes the diagnosis of early Cholangiocarcinoma (CCA) in this context difficult. A finding of incidental CCA on liver explant is associated with poor oncological outcomes, despite this; there remains no international consensus on how best to outrule CCA in this group ahead of transplantation. The objectives of this study were to report the Irish incidence of incidental CCA in individuals with PSC undergoing liver transplantation, and to critically evaluate the accuracy of diagnostic modalities in outruling CCA in our wait-listed PSC cohort.

View Article and Find Full Text PDF

Whitefly (Bemisia tabaci) is a phloem-feeding global agricultural pest belonging to the order Hemiptera. Foliar application of double-stranded RNA (dsRNA) represents an attractive avenue for pest control; however, limited uptake and phloem availability of the dsRNA has restricted the development of RNA interference (RNAi)-based biopesticides against sap-sucking insects. Following high-throughput single and combinational target gene identification for additive effects, we report here that foliar application of dsRNA loaded onto layered double hydroxide (LDH), termed BioClay, can effectively disrupt multiple whitefly developmental stages in planta.

View Article and Find Full Text PDF

Preoperative embolisation is a commonly performed adjunct to microsurgical excision of brain arteriovenous malformations (bAVMs), with aims such as lessening the technical difficulty of the microsurgical procedure, reducing operative time, decreasing blood loss, and improving patient functional outcomes. We aim to perform a systematic review of randomised trials and cohort studies evaluating preoperative embolisation of bAVMs published between 01 January 2000 and 31 March 2021 and appraise its role in clinical practice. A MEDLINE search was performed, and articles reporting on outcomes following preoperative embolisation, as an adjunct to microsurgery, were eligible for inclusion.

View Article and Find Full Text PDF

Introduction: There are few existing severity scoring systems in the literature, and no formally widely accepted chest X-ray template for reporting COVID-19 infection. We aimed to modify the chest X-ray COVID-19 severity scoring system from the Brixia scoring system with placement of more emphasis on consolidation and to assess if the scoring tool could help predict intubation.

Methods: A severity chest X-ray scoring system was modified from the Brixia scoring system.

View Article and Find Full Text PDF

Background:  Current guidelines suggest that patients should undergo colonoscopy after CT confirmed acute diverticulitis to outrule colorectal cancer (CRC). The aim of this study was to determine if flexible sigmoidoscopy (FS) could be a viable alternative to full colonoscopy following acute sigmoid diverticulitis.

Methods:  A retrospective study of 271 patients was performed who were diagnosed with acute sigmoid diverticulitis by CT and subsequently underwent full colonoscopy.

View Article and Find Full Text PDF

Hierarchies of power among healthcare professionals are well documented, nonetheless, power remains neglected, understudied and under-theorised in health systems analysis and policy discussions, especially in the domain of Traditional, Complementary and Alternative Medicine (TCAM). Sociological and public health scholarship has documented the persistence of medical dominance in the health system, theorised as the limitation, subordination, exclusion and incorporation of other professions. This paper explores how interprofessional power dynamics shape the integration of TCAM into Indian primary healthcare centres, as part of a nationwide policy of TCAM integration and medical pluralism implemented since 2005.

View Article and Find Full Text PDF