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1.
A J Buckton R Kulasegaram S L Ngui M Fisher R James S Rangarajan C G Teo 《Journal of clinical virology》2007,40(1):60-63
An HIV-1/hepatitis C virus (HCV) co-infected patient with haemophilia received a 48-week course of pegylated interferon-alpha-2b and ribavirin therapy for genotype 5a HCV infection. Virological response was achieved at week 24. At the end of treatment, HCV RNA in serum was detected and identified to belong to genotype 2b, rather than genotype 5a. A sensitive method for identifying minority HCV genotypes in pre-treatment serum showed genotype 2b HCV carriage prior to treatment. Sequencing the interferon sensitivity-determining region of the HCV NS5A gene obtained from pre-, intra- and post-treatment sera revealed emergence of quasispecies bearing R-->K and M-->A/T mutations at codons 2222 and 2223, respectively. Occult presence of minority HCV subpopulations and their acquisition of mutations following therapy can result in poor treatment outcome. 相似文献
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Ng Stella L. Crukley Jeff Brydges Ryan Boyd Victoria Gavarkovs Adam Kangasjarvi Emilia Wright Sarah Kulasegaram Kulamakan Friesen Farah Woods Nicole N. 《Advances in health sciences education : theory and practice》2022,27(2):323-354
Advances in Health Sciences Education - Critical reflection supports enactment of the social roles of care, like collaboration and advocacy. We require evidence that links critical teaching... 相似文献
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Michael F. T. Koehler Philippe Bergeron Edna F. Choo Kevin Lau Chudi Ndubaku Danette Dudley Paul Gibbons Brad E. Sleebs Carl S. Rye George Nikolakopoulos Chinh Bui Sanji Kulasegaram Wilhelmus J. A. Kersten BrianJ. Smith Peter E. Czabotar Peter M. Colman DavidC. S. Huang Jonathan B. Baell Keith G. Watson Lisa Hasvold Zhi-Fu Tao Le Wang AndrewJ. Souers Steven W. Elmore John A. Flygare Wayne J. Fairbrother Guillaume Lessene 《ACS medicinal chemistry letters》2014,5(6):662-667
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Kulamakan Kulasegaram Maria Mylopoulos Paul Tonin Stacey Bernstein Pier Bryden Marcus Law 《Medical teacher》2018,40(5):443-448
AbstractRationale: There are perennial calls for MD curricula to reform in order to meet the changing needs of students, patients, and society. And yet, efforts at renewal have also been suggested to have minimal impact on the pedagogy and outcomes of medical education. One reason may be misalignment between the components of the curriculum during design and implementation. The University of Toronto MD program recently renewed its undergraduate preclinical Foundations curriculum. Mindful of the pitfalls of misalignment, the renewal process focused deliberately on alignment between the various components of the curriculum: instructional methods, student assessment, faculty development, and the larger purpose of serving students and society.Innovation: Educational evidence was used to drive the alignment process which resulted in three major changes. First, we created a spiral curriculum centered on 72 virtual patient cases designed to integrate content and prepare students for clinical learning. Second, we introduced a novel medical psychiatry component to address a core societal need in mental health. This exposed students early to experiences of complexity, ambiguity, and integrated patient care. Lastly, a shift to assessment for learning and programmatic assessment was designed and implemented concurrently to reinforce the pedagogy of the curriculum. Synchronous faculty development was developed for the new roles required of faculty.Conclusions: Early program evaluation shows alignment of these curricular components requires ongoing attention and resources in order to be successful. The potential benefits of this alignment are well prepared students who can meet the needs of their patients and society in an increasingly complex health system. 相似文献
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Kulasegaram K Min C Ames K Howey E Neville A Norman G 《Advances in health sciences education : theory and practice》2012,17(4):489-499
Applying a previously learned concept to a novel problem is an important but difficult process called transfer. It is suggested that a commonsense analogy aids in transfer by linking novel concepts to familiar ones. How the context of practice affects transfer when learning using analogies is still unclear. This study investigated the effect of a commonsense analogy and context familiarity for transfer of physiological concepts. First year psychology students (n = 24) learned three concepts: Starling's law, Laplace's law, and laminar-turbulent flow. The control group saw standard explanations while the intervention group saw an additional commonsense analogy. The context of learning was the organ system used for two practice clinical cases which differed for all concepts. Testing consisted of 12 new clinical cases. Starling's law cases used the organ system from practice while the other concepts presented in both novel and familiar organ systems. Half of the sample repeated testing after 1 week delay. The outcome was ratings of explanations of cases on a 0-3 scale. The effect of analogy was significant (Mean = 1.24 with, 0.86 without, F(1,22) = 4.26, p < 0.05) but not after delay (means of 1.08 and 0.75 respectively, F = (1,10), p = 0.06) There was significant effect for familiar context (Same = 1.23 (Starling), different = 0.68 (Laplace) and 0.73 (laminar-turbulent flow) (F(2,44) = 5.14, p < 0.01). Laplace's law and laminar turbulent flow cases in the familiar organ system had means of 1.65 and 1.77 respectively compared to novel cases with means of 0.74 and 0.68 (F(1,22) = 35.64, p < 0.0001). Similar effects were observed after delay. There was significant decay in performance after delay for all participants (immediate = 1.17, delayed = 0.91, F = 11.9 (1,10) p < 0.01). Common analogies aid conceptual understanding necessary for transfer. Despite conceptual aids, solving transfer problems is difficult. 相似文献
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Kulasegaram R Richardson D Macrae B de Ruiter A 《International journal of STD & AIDS》2001,12(6):404-406
Skeletal infections with atypical mycobacteria are a manifestation of advanced HIV disease, most patients having CD4 counts of less than 100 cells/mm(3). We report a case of Mycobacterium xenopi vertebral osteomyelitis in a patient on HAART with a CD4 count of 490 cells/mm(3) and viral load below the level of detection at the time of diagnosis. 相似文献
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Gupta RK Chrystie IL O'Shea S Mullen JE Kulasegaram R Tong CY 《AIDS (London, England)》2005,19(16):1916-1919
The vast majority of HIV-1 infections globally are caused by subtype A or C, although little is known about their drug resistance profiles. We found that HAART-experienced patients infected with subtype A had a lower prevalence of K65R and Y181C than those with subtypes B or C, despite similar exposure to antiretroviral agents that select for these mutations. If confirmed, this information may be important in the planning of antiretroviral regimens in patients infected with HIV-1 subtype A. 相似文献