Publications by authors named "S Ahrendt"

Lorchels, also known as false morels (Gyromitra sensu lato), are iconic due to their brain-shaped mushrooms and production of gyromitrin, a deadly mycotoxin. Molecular phylogenetic studies have hitherto failed to resolve deep-branching relationships in the lorchel family, Discinaceae, hampering our ability to settle longstanding taxonomic debates and to reconstruct the evolution of toxin production. We generated 75 draft genomes from cultures and ascomata (some collected as early as 1960), conducted phylogenomic analyses using 1542 single-copy orthologs to infer the early evolutionary history of lorchels, and identified genomic signatures of trophic mode and mating-type loci to better understand lorchel ecology and reproductive biology.

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Background: This study aimed to assess the impact of cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) on the survival outcomes for patients with gastric cancer and peritoneal carcinomatosis (PC).

Methods: A retrospective analysis of the National Cancer Database from 2004 to 2020 identified patients with topography and histology codes consistent with gastric adenocarcinoma who underwent CRS/HIPEC. The exclusion criteria ruled out known other distant metastasis and missing key data.

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This study aimed to evaluate the role of pathological features beyond tumor size in the risk of lymph node metastasis in appendiceal neuroendocrine tumors. Analyzing data from the national cancer database, we found that among 5353 cases, 18.8% had lymph node metastasis.

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Article Synopsis
  • - This study explores how changes in body composition (like muscle and fat) during chemotherapy for localized pancreatic ductal adenocarcinoma (PDAC) can reflect tumor biology, which has been a challenge to assess clinically.
  • - The researchers analyzed data from 138 patients who received neoadjuvant therapy and surgery from 2017 to 2021, using advanced software to measure muscle and fat changes at the L3 vertebra level.
  • - Results showed that increases in muscle and fat during treatment were linked to better survival outcomes, while significant loss of visceral fat was harmful, suggesting that ongoing body composition analysis could serve as a useful biomarker for treatment response.
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