Publications by authors named "Kelleher A"

Background: The impact of post-surgical same day ambulation in lung resection patients is relatively unstudied. We sought to determine the relationship between day of surgery ambulation and postoperative outcomes after lung resection.

Methods: This was a prospective cohort study at one healthcare system with six hospitals (1/2019-3/2023).

View Article and Find Full Text PDF

Adjunctive rosuvastatin for rifampicin-susceptible pulmonary tuberculosis (rs-PTB) shows no effect on microbiological or radiological outcomes in a phase IIb randomised, controlled trial (NCT04504851). We explore the impact of adjunctive rosuvastatin on 18F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT) imaging in a sub-study of 24 participants. Changes in standardised uptake value (SUVmax, SUVmean), Total Metabolic Volume, (TMV), Total Lesion Glycolysis (TLG), cavity diameter and volume, between week 0 and week 8 post-randomisation, are evaluated.

View Article and Find Full Text PDF

Background: Current literature informs us that bivalent vaccines will generate a broader serum neutralizing antibody response to multiple SARS-CoV-2 variants, but studies on how this breadth relates to the memory B cell (MBC) and T cell responses are sparse. This study compared breadth of neutralising antibody, and memory B and T cell responses to monovalent or a bivalent ancestral/Omicron BA.1 COVID-19 booster vaccine.

View Article and Find Full Text PDF
Article Synopsis
  • Ongoing research is essential for tracking and understanding the emergence of new SARS-CoV-2 variants, particularly as diagnostic testing declines in Australia during the COVID-19 pandemic.
  • In 2023, collaborations with pathology and genomics teams allowed for the monitoring of SARS-CoV-2 variants in New South Wales through various methods, including viral culture and analysis of immune responses from a large pool of blood donations.
  • Findings indicated that while existing antibodies generally neutralized many variants, specific mutations in emerging strains, particularly JN.1, suggested future challenges in controlling their spread due to enhanced transmissibility.
View Article and Find Full Text PDF
Article Synopsis
  • Full-grown mammalian oocytes exposed to moderate to severe DNA damage show ineffective DNA damage repair (DDR), leading to conditions like aneuploidy due to altered chromatin states and inaccessible repair proteins.* -
  • Mouse and pig oocytes do not activate autophagy in response to DNA damage like somatic cells do, which contributes to their impaired DDR and potentially explains the chromatin alterations.* -
  • Reduced autophagy is notably pronounced in aged oocytes with severe DNA damage and is linked to improved DNA repair, suggesting enhancing autophagy could benefit assisted reproductive technologies for women with lower oocyte quality.*
View Article and Find Full Text PDF
Article Synopsis
  • Human T cell leukaemia virus type-1 (HTLV-1) is a retrovirus that infects millions worldwide and is linked to serious health issues like adult T cell leukaemia/lymphoma and other immune disorders.
  • The virus primarily targets CD4 T cells and often remains asymptomatic until later in the infection, with no effective preventive or curative treatments currently available for those affected.
  • Recent research into RNA-based antiviral therapies for similar viruses, like HIV-1, offers hope for new treatment strategies, including gene therapy and novel antiviral and anticancer approaches for HTLV-1.
View Article and Find Full Text PDF

The World Health Organisation has set targets of reducing the transmission of new hepatitis C (HCV) infections by 90%, and ending human immunodeficiency virus-1 (HIV) as a public health threat, by 2030. To achieve this, efficient and timely viral surveillance, and effective public health interventions, are required. Traditional epidemiological methods are largely dependent on the recognition of incident cases with symptomatic illness; acute HIV and HCV infections are commonly asymptomatic, which may lead to delays in the recognition of such new infections.

View Article and Find Full Text PDF

Introduction: New South Wales (NSW) has one of the world's highest uptake rates of HIV pre-exposure prophylaxis (PrEP). This uptake has been credited with sharp declines in HIV transmission, particularly among Australian-born gay and bisexual men. Concerns have been raised around the potential for the emergence of tenofovir (TFV) and XTC (lamivudine/emtricitabine) resistance in settings of high PrEP use.

View Article and Find Full Text PDF
Article Synopsis
  • Carfentanil ([C]CFN) is the only carbon-11 labeled radiotracer used for PET imaging of mu opioid receptors, but its effects in preclinical studies haven't been fully explored.
  • In studies with anesthetized rats, researchers found that higher doses of CFN led to significant changes in vital signs and a correlation between CFN mass and mu opioid receptor availability in the brain.
  • The results suggest that controlling CFN dosage is crucial to avoid complications and accurately measure mu opioid receptor activity, highlighting the need for careful quality control in PET studies with this radiotracer.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effects of antiretroviral therapy (ART) interruption on neuro-axonal injury, specifically measuring levels of neurofilament light protein (NfL) in individuals during primary HIV-1 infection.
  • Findings show that NfL decreased after 48 weeks of ART, indicating reduced neuronal injury, and remained stable despite viral rebound after ART interruption.
  • Additionally, baseline NfL levels correlated with higher plasma HIV-1 RNA and older age but showed no significant relationship with inflammation markers like IL-6 or total HIV-1 DNA.
View Article and Find Full Text PDF

The epithelial cell lining of the oviduct plays an important role in oocyte pickup, sperm migration, preimplantation embryo development, and embryo transport. The oviduct epithelial cell layer comprises ciliated and nonciliated secretory cells. The ciliary function has been shown to support gamete and embryo movement in the oviduct, yet secretory cell function has not been well characterized.

View Article and Find Full Text PDF

Progesterone (P), acting via its nuclear receptor (PR), is critical for pregnancy maintenance by suppressing proinflammatory and contraction-associated protein (CAP)/contractile genes in the myometrium. P/PR partially exerts these effects by tethering to NF-κB bound to their promot-ers, thereby decreasing NF-κB transcriptional activity. However, the underlying mechanisms whereby P/PR interaction blocks proinflammatory and CAP gene expression are not fully understood.

View Article and Find Full Text PDF

Background: Benefits of thoracic enhanced recovery after surgery programs have been described. However, there is ongoing discussion on the importance of full protocol compliance. The objective of this study was to determine whether strict adherence to an enhanced recovery after surgery protocol leads to further improvement in outcomes compared with less strict compliance.

View Article and Find Full Text PDF

Objective: To investigate the association between blood-brain barrier permeability, brain metabolites, microstructural integrity of the white matter, and cognitive impairment (CI) in post-acute sequelae of SARS-COV-2 infection (PASC).

Methods: In this multimodal longitudinal MRI study 14 PASC participants with CI and 10 healthy controls were enrolled. All completed investigations at 3 months following acute infection (3 months ± 2 weeks SD), and 10 PASC participants completed at 12 months ± 2.

View Article and Find Full Text PDF

This study investigates the humoral and cellular immune responses and health-related quality of life measures in individuals with mild to moderate long COVID (LC) compared to age and gender matched recovered COVID-19 controls (MC) over 24 months. LC participants show elevated nucleocapsid IgG levels at 3 months, and higher neutralizing capacity up to 8 months post-infection. Increased spike-specific and nucleocapsid-specific CD4 T cells, PD-1, and TIM-3 expression on CD4 and CD8 T cells were observed at 3 and 8 months, but these differences do not persist at 24 months.

View Article and Find Full Text PDF

Early gene therapy studies held great promise for the cure of heritable diseases, but the occurrence of various genotoxic events led to a pause in clinical trials and a more guarded approach to progress. Recent advances in genetic engineering technologies have reignited interest, leading to the approval of the first gene therapy product targeting genetic mutations in 2017. Gene therapy (GT) can be delivered either in vivo or ex vivo.

View Article and Find Full Text PDF

Objective: We sought to evaluate how implementing a thoracic enhanced recovery after surgery (ERAS) protocol impacted surgical outcomes after elective anatomic lung resection.

Background: The effect of implementing the ERAS Society/European Society of Thoracic Surgery thoracic ERAS protocol on postoperative outcomes throughout an entire health care system has not yet been reported.

Methods: This was a prospective cohort study within one health care system (January 2019-March, 2023).

View Article and Find Full Text PDF

Postnatal development of the uterus involves the specification of undifferentiated epithelium into uterine-type epithelium. That specification is regulated by stromal-epithelial interactions as well as intrinsic cell-specific transcription factors and gene regulatory networks. Here, we present a co-culture system to study the effects of stromal-derived factors on epithelial cell growth and differentiation into organoids.

View Article and Find Full Text PDF

Background: Community-based participatory research (CBPR) is an increasingly recognized approach to address health inequities. Although in CBPR all processes occur within the community context, its diagrammatic model places the intervention/research outside of the community rather than conceptualizing it as an event in a complex web of system components.

Objectives: We sought to 1) introduce a systems-oriented community ownership conceptual framework that integrates a systems perspective with CBPR and 2) to describe an application of this framework in the form of the Mi Gente, Nuestra Salud initiative, a research-based, action-oriented collaboration between Cal Poly investigators and community partners in Santa Maria and Guadalupe, California.

View Article and Find Full Text PDF

The uterine epithelium is composed of a single layer of hormone responsive polarized epithelial cells that line the lumen and form tubular glands. Endometrial epithelial organoids (EEO) can be generated from uterine epithelia and recapitulate cell composition and hormone responses in vitro. As such, the development of EEO represents a major advance for facilitating mechanistic studies in vitro.

View Article and Find Full Text PDF

The rapid synthesis of a range of enantioenriched allylic esters is enabled by a new 3-component catalytic enantioselective 1,2-carboesterification of readily available dienes with carboxylic acids and potassium alkyltrifluoroborates. The chiral copper catalyst, formed in situ from Cu(OTf) and (4,4')-2,2'-(cyclopentane-1,1-diyl)bis(4-phenyl-4,5-dihydrooxazole), is implicated in both the generation of alkyl radicals from the alkyltrifluoroborates as well as the enantioselective formation of C-O bonds. Potassium salts of primary and secondary alkyltrifluoroborates as well as several benzylic trifluoroborates, -butyltrifluoroborate, and phenyltrifluoroborate participate in the reaction.

View Article and Find Full Text PDF

The Global UNAIDS 95/95/95 targets aim to increase the percentage of persons who know their HIV status, receive antiretroviral therapy, and have achieved viral suppression. Achieving these targets requires efforts to improve the public health response to increase access to care for those living with HIV, identify those yet undiagnosed with HIV early, and increase access to prevention for those most at risk of HIV acquisition. HIV infections in Australia are among the lowest globally having recorded significant declines in new diagnoses in the last decade.

View Article and Find Full Text PDF

The purpose of this study was to describe the health status and barriers of people who sought care on a free mobile health clinic for women without insurance in California. Participants were 221 women who attended the Salud para Mujeres (Women's Health) mobile medical clinic between 2019 and 2021. Medical chart abstractions provided data on sociodemographic factors, medical history, barriers to care, depressive symptoms, and dietary factors.

View Article and Find Full Text PDF

Bladder cancer is a common malignancy whose lethality is determined by invasive potential. We have previously shown that , also known as , is transcriptionally regulated by TP63 in basal bladder cancers where it promotes invasive progression and metastasis, but the molecular events which promote invasion and metastasis downstream of remained poorly understood. Here we identify stimulation of bladder cancer migration as the specific role of TRIM29 during invasion.

View Article and Find Full Text PDF