Bheeshma Ravi

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Experimental studies have been carried out using 5-aminolaevulinic acid (ALA) to induce transient porphyrin photosensitisation for photodynamic therapy (PDT) in a pancreatic cancer model in Syrian golden hamsters. ALA was given either intravenously or orally (in bolus or fractionated doses) with the laser light delivered by means of a bare fibre touching(More)
OBJECTIVES To identify a cut point in annual surgeon volume associated with increased risk of complications after primary elective total hip arthroplasty and to quantify any risk identified. DESIGN Propensity score matched cohort study. SETTING Ontario, Canada. PARTICIPANTS 37,881 people who received their first primary total hip arthroplasty during(More)
Inhibiting activity of the c-Myb transcription factor attenuates G1 to S phase cell cycle transitions in vascular smooth muscle cells (SMCs) in vitro. To determine the effects of arterial SMC-specific expression of a dominant-negative c-Myb molecule (Myb-Engrailed) on vascular remodeling in vivo, we performed carotid artery wire-denudation in 2 independent(More)
OBJECTIVE To examine whether total joint arthroplasty of the hip and knee reduces the risk for serious cardiovascular events in patients with moderate-severe osteoarthritis. DESIGN Propensity score matched landmark analysis. SETTING Ontario, Canada. PARTICIPANTS 2200 adults with hip or knee osteoarthritis aged 55 or more at recruitment (1996-98) and(More)
BACKGROUND Because individuals with osteoarthritis (OA) avoid physical activities that exacerbate symptoms, potentially increasing risk for cardiovascular disease (CVD) and death, we assessed the relationship between OA disability and these outcomes. METHODS In a population cohort aged 55+ years with at least moderately severe symptomatic hip and/or knee(More)
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