3,178 results match your criteria: "a The Centenary Institute ; Newtown ; NSW Australia.[Affiliation]"

Spatial mapping of the HCC landscape identifies unique intratumoral perivascular-immune neighborhoods.

Hepatol Commun

November 2024

Human Immunology Laboratory, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia.

Background: HCC develops in the context of chronic inflammation; however, the opposing roles the immune system plays in both the development and control of tumors are not fully understood. Mapping immune cell interactions across the distinct tissue regions could provide greater insight into the role individual immune populations have within tumors.

Methods: A 39-parameter imaging mass cytometry panel was optimized with markers targeting immune cells, stromal cells, endothelial cells, hepatocytes, and tumor cells.

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Analogue of the natural product ecumicin causes sustained growth inhibition of Mycobacterium tuberculosis under multiple growth conditions.

Tuberculosis (Edinb)

December 2024

Tuberculosis Research Program Centenary Institute, The University of Sydney, Camperdown, NSW 2006, Australia; Department of Clinical Immunology, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia. Electronic address:

Multi-drug-resistant Mycobacterium tuberculosis is an escalating global health problem, and a strong pipeline of novel compounds is needed to combat rising antimicrobial resistance. Ecumicin is a novel analogue of the natural antimycobacterial cyclic peptide ecumicin, with selective activity against Mycobacterium species. The activity of ecumicin∗ was compared to that of frontline tuberculosis therapies under in vitro conditions representative of niches where M.

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Mitochondrial endonuclease G (EndoG) contributes to chromosomal degradation when it is released from mitochondria during apoptosis. It is presumed to also have a mitochondrial function because EndoG deficiency causes mitochondrial dysfunction. However, the mechanism by which EndoG regulates mitochondrial function is not known.

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Architects and Partners: The Dual Roles of Non-coding RNAs in Gene Fusion Events.

Methods Mol Biol

December 2024

Biomedical Sciences and Molecular Biology, College of Public Health, Medical & Vet Sciences, James Cook University, Douglas, QLD, Australia.

Extensive research into gene fusions in cancer and other diseases has led to the discovery of novel biomarkers and therapeutic targets. Concurrently, various bioinformatics tools have been developed for fusion detection in RNA sequencing data, which, in the age of increasing affordability of sequencing, have delivered a large-scale identification of transcriptomic abnormalities. Historically, the focus of fusion transcript research was predominantly on coding RNAs and their resultant proteins, often overlooking non-coding RNAs (ncRNAs).

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Skin aging, often called as premature skin aging, is the hastened deterioration of the skin resulting from multiple factors, including UV radiation, environmental contaminants, inadequate nutrition, stress, etc. Dietary phytochemicals, present in fruits, vegetables, and other plant-derived meals, have gained interest due to their efficiency to eradicate free radicals and lowering the release of inflammatory mediators which accounts for premature skin aging. Several dietary phytochemicals, i.

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Noninvasive assessment of hydroquinidine effect in Brugada syndrome (QUIET BrS).

Heart Rhythm

December 2024

Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia. Electronic address:

Background: Hydroquinidine reduces arrhythmic events in patients with Brugada syndrome (BrS). The mechanism by which it exerts antiarrhythmic benefit and its electrophysiological effects on BrS substrate remain incompletely understood.

Objective: This study aimed to determine the effect of hydroquinidine on ventricular depolarization and repolarization in patients with BrS in vivo.

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Potent phytoceuticals cocktail exhibits anti-inflammatory and antioxidant activity on LPS-triggered RAW264.7 macrophages in vitro.

Pathol Res Pract

December 2024

Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Consortium in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia. Electronic address:

Chronic inflammatory conditions, which include respiratory diseases and other ailments, are characterized by persistent inflammation and oxidative stress, and represent a significant health burden, often inadequately managed by current therapies which include conventional inhaled bronchodilators and oral or inhaled corticosteroids in the case of respiratory disorders. The present study explores the potential of Vedicinals®9 Advanced, a polyherbal formulation, to mitigate LPS-induced inflammation and oxidative stress in RAW264.7 mouse macrophages.

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Purpose: The Australian Genomics Cardiovascular Disorders Flagship was a national multidisciplinary collaboration. It aimed to investigate the feasibility of genome sequencing (GS) and functional genomics to resolve variants of uncertain significance (VUS) in the clinical management of patients and families with cardiomyopathies, primary arrhythmias, and congenital heart disease (CHD).

Methods: Between April 2019 and December 2021, 600 probands meeting cardiovascular disorder criteria from 17 cardiology and genetics clinics across Australia were enrolled in the Flagship and underwent GS.

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Tuberculosis is one of the deadliest infectious diseases and continues to be a major health risk in many parts of the world. Even today, the century-old Bacillus Calmette-Guerin (BCG) vaccine is the only formulation on the market and is ineffective for several sections of the global population responsible for transmission. In the search for antigens that can mount a robust immune response, we have reported the recombinant expression and purification of two novel membrane proteins, the Cation transporter protein V (CtpV) and the Mycobacterial copper transporter B (MctB) present on the membrane surface of .

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The rufomycins are a family of nonribosomal cyclic peptides isolated from the deep sea-dwelling Herein, we describe the total synthesis of six congeners in the rufomycin family. Synthesis was achieved through a modular solid-phase strategy, incorporating synthetic nonproteinogenic amino acids: l-2-amino-4-hexenoic acid, prenyl-l-tryptophan (and related ()-epoxide), and -methyl-δ-hydroxy-l-leucine. Following macrolactamization, these peptides were further diversified through late-stage oxidation and secondary cyclization to furnish a library of six synthetic natural products.

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A first-in-class vaccine adjuvant delivery system, Mn-ZIF, is developed by incorporating manganese (Mn) into the zinc-containing zeolitic-imidazolate framework-8 (ZIF-8). The mixed metal approach, which allowed for tunable Mn doping, is made possible by including a mild reducing agent in the reaction mixture. This approach allows up to 50% Mn, with the remaining 50% Zn within the ZIF.

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Interaction of VO-hydrazonates with lysozyme.

J Inorg Biochem

November 2024

Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126 Napoli, Italy. Electronic address:

Vanadium compounds (VCs) exhibit a broad range of pharmacological properties, with their most significant medical applications being in the treatment of cancer and diabetes. The therapeutic effects and mode of action of VCs may be associated with their ability to bind proteins and, consequently, understanding the VC-protein interaction is of paramount importance. Among the promising VCs, the VO complex with the aroylhydrazone furan-2-carboxylic acid ((3-ethoxy-2-hydroxybenzylidene)hydrazide, hereafter denoted as VC1), deserves attention, since it exhibits cytotoxicity against various cancer cell lines, including HeLa.

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Low Penetrance Sarcomere Variants Contribute to Additive Risk in Hypertrophic Cardiomyopathy.

Circulation

December 2024

Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan, Ann Arbor. (E.D.S., Y.-C.T., B.E., A.B., O.M., S.S., A.S.H.).

Article Synopsis
  • - Hypertrophic cardiomyopathy (HCM) was traditionally seen as caused by rare, high-risk single-gene changes, but new research indicates common low-risk variants (LowSVs) also play a significant role in the disease.
  • - In a study of over 6000 patients, 12 LowSVs were discovered, which are relatively common in the general population and more prevalent in HCM patients, suggesting they may influence disease severity and risk.
  • - While LowSVs alone are linked to a later onset of HCM and fewer complications, their presence alongside more severe genetic variants increases health risks significantly.
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In the rice agroecosystems of Southeast Asia, rice root knot nematode (Meloidogyne graminicola) significantly impairs yield, representing a major species within the 'graminis-group' known for its morphological similarities with other root knot nematodes (RKNs). This study delves into the variations in reproductive potential, morphology, morphometrics, and genetic diversity among thirty RKN populations in rice across three distinct agroecological zones in Jharkhand, India. Despite notable differences in reproductive potential among the populations, morphological and morphometric correlations to reproductive potential were inconclusive.

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Bivalent Omicron BA.1 vaccine booster increases memory B cell breadth and neutralising antibodies against emerging SARS-CoV-2 variants.

EBioMedicine

December 2024

Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW, Australia; Sydney Infectious Diseases Institute (Sydney ID), Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia; School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia. Electronic address:

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.

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Microneedle technology revolutionizes ocular drug delivery by addressing challenges in treating ocular diseases. This review explores its potential impact, recent advancements, and clinical uses. This minimally invasive technique offers precise control of drug delivery to the eye, with various microneedle types showing the potential to penetrate barriers in the cornea and sclera, ensuring effective drug delivery.

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Article Synopsis
  • * Traditional use of medicinal plants has been around for centuries, but their effectiveness can be hampered by issues such as low water solubility and poor absorption in the body.
  • * Recent advances involve using isolated compounds from these plants and novel delivery systems like nanoparticles to improve their effectiveness in targeting cancer pathways, potentially enhancing treatment outcomes and reducing side effects.
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Article Synopsis
  • Lung cancer (LC) is the leading cause of cancer mortality, with significant implications from the interplay between human genetics and microbial cells in the body.
  • The gut-lung axis and interactions between gut and lung microbiomes are believed to influence the progression of lung cancer and other lung diseases.
  • Advances in 16s rDNA sequencing have revealed the role of the lung microbiome in tumor development and treatment responses, suggesting that microbiome-based therapies could be a promising approach for improving LC treatment outcomes.
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  • The study investigates the relationship between IL-6 signaling, particularly through the SNP rs2228145, and the risk of developing tuberculosis (TB), considering that inhibitors of IL-6 signaling might increase TB progression risk.
  • The researchers conducted a meta-analysis of various genome-wide association studies (GWAS) to analyze genetic data and extract effect estimates related to the C allele of rs2228145, which is associated with reduced IL-6 signaling.
  • Preliminary findings include data from 17 GWAS, covering a substantial sample of individuals with tuberculosis and a large control population, aiming to understand how genetic factors might influence TB susceptibility.
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Article Synopsis
  • Sarcopenia, the age-related loss of muscle mass, may stem from anabolic resistance and disrupted cellular signaling, but it's uncertain if aging alone causes these issues or if other factors play a role.!* -
  • In a study with lean young men (average age 22) and old men (average age 70), participants performed resistance exercise followed by essential amino acid intake, with muscle biopsies taken at several intervals to measure amino acid levels and muscle protein synthesis (MPS).!* -
  • Results showed both age groups had similar peak amino acid levels after exercise, but older individuals had heightened anabolic signaling in resting muscles, suggesting age may affect muscle recovery differently despite comparable exercise responses.!*
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