40 results match your criteria: "Concord Hospital and University of Sydney[Affiliation]"

Article Synopsis
  • Isoniazid, a treatment for tuberculosis, can cause liver damage, and the effects differ by age, which this study explores using young and old Fischer 344 rats.
  • Young rats showed increased liver damage markers from high doses of isoniazid, while older rats exhibited significant microvesicular steatosis, particularly at lower doses.
  • The study reveals that older rats had higher levels of harmful metabolites from isoniazid, despite young rats having more active liver enzymes that process the drug, highlighting age-related differences in drug metabolism and toxicity.
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Background: Cohort studies of STEMI patients have reported that over 30% receive no reperfusion. Barriers to greater use of reperfusion in STEMI patients require further elucidation.

Methods: We collected data on STEMI patients with no reperfusion as part of the SNAPSHOT ACS Registry, which recruited consecutive ACS patients in 478 hospitals throughout Australia and New Zealand during 14-27 May 2012.

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Tablet-based screening improves continence management in multiple sclerosis.

Ann Clin Transl Neurol

June 2015

Brain and Mind Research Institute, University of Sydney Sydney, New South Wales, Australia ; Multiple Sclerosis Clinic, Brain and Mind Research Institute, University of Sydney Sydney, New South Wales, Australia ; Department of Neurology, Royal Prince Alfred Hospital Sydney, New South Wales, Australia.

Objective: To investigate whether electronic continence questionnaires aid early identification and optimizes management of sphincter dysfunction in a multiple sclerosis clinic.

Methods: A custom designed, tablet-based cross-platform software tool was designed to capture validated multiple sclerosis (MS) patient-reported outcomes. An unselected cohort of MS patients from a tertiary referral clinic completed electronic tablet-based versions of the Bladder Control Scale (BLCS) and the Bowel Control Scale in the waiting room.

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The effect of aging on mitochondrial and cytosolic hepatic intrinsic death pathway and apoptosis associated proteins in Fischer 344 rats.

Exp Gerontol

July 2015

Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Sydney, NSW, Australia; Depts of Clinical Pharmacology and Aged Care, Royal North Shore Hosp, Sydney, NSW, Australia; Sydney Medical School, Univ of Sydney, Sydney, NSW, Australia. Electronic address:

Apoptosis is increased in the liver in old age and is a common pathological feature of liver disease. The mitochondria play a key role in regulating apoptosis via the intrinsic death pathway. As the effect of aging on this pathway is unclear, we aimed to characterize the impact of aging on the hepatic intrinsic death pathway and apoptosis.

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The corpus callosum in the diagnosis of multiple sclerosis and other CNS demyelinating and inflammatory diseases.

J Neurol Neurosurg Psychiatry

December 2015

Neuroimmunology Clinic, Concord Hospital and University of Sydney, Sydney, New South Wales, Australia Brain & Mind Research Institute, University of Sydney, New South Wales, Australia.

Lesions in the corpus callosum (CC) are important radiological clues to the diagnosis of multiple sclerosis (MS), but may also occur in other neuroinflammatory and non-neuroinflammatory conditions. In this article, we discuss the radiological features of lesions within the CC in MS and other central nervous system inflammatory and acquired demyelinating diseases. An understanding of the appearance and location of lesions in the CC is important not only for accurate diagnosis and treatment of these various conditions, but as it also provides insights into pathogenesis.

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Late Consequences of Acute Coronary Syndromes: Global Registry of Acute Coronary Events (GRACE) Follow-up.

Am J Med

July 2015

Terrence Donnelly Heart Centre, Division of Cardiology, St. Michael's Hospital, University of Toronto, Ont., Canada; Canadian Heart Research Centre, Toronto, Ont., Canada. Electronic address:

Purpose: Short-term outcomes have been well characterized in acute coronary syndromes; however, longer-term follow-up for the entire spectrum of these patients, including ST-segment-elevation myocardial infarction, non-ST-segment-elevation myocardial infarction, and unstable angina, is more limited. Therefore, we describe the longer-term outcomes, procedures, and medication use in Global Registry of Acute Coronary Events (GRACE) hospital survivors undergoing 6-month and 2-year follow-up, and the performance of the discharge GRACE risk score in predicting 2-year mortality.

Methods: Between 1999 and 2007, 70,395 patients with a suspected acute coronary syndrome were enrolled.

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A high-fat diet and NAD(+) activate Sirt1 to rescue premature aging in cockayne syndrome.

Cell Metab

November 2014

Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA; Danish Center for Healthy Aging, ICMM, University of Copenhagen, Copenhagen, Denmark. Electronic address:

Cockayne syndrome (CS) is an accelerated aging disorder characterized by progressive neurodegeneration caused by mutations in genes encoding the DNA repair proteins CS group A or B (CSA or CSB). Since dietary interventions can alter neurodegenerative processes, Csb(m/m) mice were given a high-fat, caloric-restricted, or resveratrol-supplemented diet. High-fat feeding rescued the metabolic, transcriptomic, and behavioral phenotypes of Csb(m/m) mice.

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Accurate measurement of testosterone is important for reproductive endocrinology research, but the validity of direct (nonextraction) testosterone immunoassays, developed and validated for human serum, has not been appraised for application to mouse serum or steroidogenic tissue extracts. Testosterone was measured in serum and extracts of testis or ovary from male and female wild-type mice by 2 commercial direct testosterone immunoassays, with and without preassay extraction, and by the liquid chromatography, tandem mass spectrometry reference method. Results were compared hierarchically by correlation (Kendall's τ), regression (Passing-Bablok), and deviance (Bland-Altman) analysis, under the null hypothesis of perfect agreement between assays (slope = 1, intercept and deviation = 0).

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Brain histopathology in three cases of Susac's syndrome: implications for lesion pathogenesis and treatment.

J Neurol Neurosurg Psychiatry

May 2015

Brain & Mind Research Institute, Sydney, New South Wales, Australia Department of Neuropathology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.

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A Sieve-Raft Hypothesis for the regulation of endothelial fenestrations.

Comput Struct Biotechnol J

June 2014

Centre for Education and Research on Ageing and ANZAC Research Institute, Concord Hospital and University of Sydney, Sydney NSW, Australia ; Charles Perkins Centre, University of Sydney NSW Australia.

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Objective: To describe values of serum prostate-specific antigen (PSA) in older men without diagnosed prostate cancer, categorised by age and country of birth, and to describe self-reported prostate cancer screening.

Design, Participants And Setting: A cohort study (the Concord Health and Ageing in Men Project) involving a representative sample of 1434 eligible community-dwelling men with no diagnosis of prostate cancer who were aged 70 years and over and living in a defined geographic area in Sydney, with baseline data collected between 28 January 2005 and 4 June 2007.

Main Outcome Measures: Serum PSA levels and self-reported prostate cancer screening.

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Spermatogenesis requires androgen but, paradoxically, oestradiol (E2) treatment stimulates spermatogenic development in gonadotrophin- and androgen-deficient hypogonadal (hpg) mice. The mechanisms of E2-induced spermatogenesis were investigated by determining intratesticular E2 levels and testis cell populations in E2-treated hpg male mice, and E2 spermatogenic actions were determined in androgen receptor-knockout (ARKO) mice. Despite increased serum E2 concentrations (150-300 pmol L(-1)), intratesticular E2 concentrations declined fivefold (P < 0.

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Background: The process of training surgeons in technique for resection of colorectal cancer should not compromise patient care or outcomes. The aim of this study was to compare morbidity, mortality and survival rates after resection performed by trainees with those for a consultant surgeon.

Methods: Outcomes for 150 patients operated on by a single colorectal surgeon at a private hospital were compared with those of 344 patients admitted under the same surgeon and operated on by closely supervised trainee surgeons in a public teaching hospital between 1995 and 2002.

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Objectives: To identify predictors of activity of daily living (ADL) and instrumental activity of daily living (IADL) decline in a population with subcortical vascular dementia (SVD) and to evaluate potential mechanism of decline.

Design: Longitudinal.

Setting: Hospital-based.

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