Publications by authors named "D J Stewart"

Recent listeriosis and salmonellosis outbreaks in the U.S. have been associated with consumption of specialty mushrooms, including enoki and wood ear.

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Background: Adults classified as immunosuppressed have been disproportionately affected by the COVID-19 pandemic. Compared to the immunocompetent, certain patients are at increased risk of suboptimal vaccine response and adverse health outcomes if infected. However, there has been insufficient work to pinpoint where these risks concentrate within the immunosuppressed spectrum; surveillance efforts typically treat the immunosuppressed as a single entity, leading to wide confidence intervals.

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Background: Thiotepa-based autologous stem cell transplantation (ASCT) improves survival in primary central nervous system lymphoma (PCNSL), but > 30% of patients are unable to undergo ASCT following commonly used intensive induction regimens.

Methods: This retrospective population-based study included consecutive patients ≥ 18 years old with PCNSL who were intended for ASCT in Alberta, Canada between 2011 and 2022. A reduced-intensity induction protocol was further abbreviated in 2018 to decrease toxicity and expediate ASCT by incorporating rituximab, procarbazine, and only 2 doses of high-dose methotrexate and 1 cycle of high-dose cytarabine before consolidation with thiotepa-busulfan conditioning.

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Purpose: To identify candidate susceptibility genes for dermatofibrosarcoma protuberans (DFSP).

Methods: All individuals with DFSP from the International Sarcoma Kindred Study ( = 3767 individuals with sarcoma diagnoses from Australia, Europe, New Zealand, and United States) and cohorts that were not ascertained based on sarcoma status or other phenotypes (Geisinger MyCode,  = 170,503 individuals, United States; UK Biobank,  = 469,789 individuals, United Kingdom) were evaluated for germline pathogenic or likely pathogenic (P/LP) variants in 156 cancer genes.

Results: There were 92 unrelated individuals with DFSP across the 3 cohorts.

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