Publications by authors named "S Berchtold"

Several studies have demonstrated, both in vitro and in animal models, the anti-tumor efficacy of high-dose ascorbate treatment against a variety of tumor entities, including glioblastoma, the most common and aggressive primary malignant brain tumor. The aim of this study was to investigate the effects of high-dose ascorbate as well as dehydroascorbic acid on human glioblastoma cell lines and to evaluate different treatment conditions for the combined administration of ascorbate with magnesium (Mg) and iron (Fe). Intracellular levels of reactive oxygen species and the induction of cell death following ascorbate treatment were also investigated.

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NUT (nuclear-protein-in-testis) carcinoma (NC) is a highly aggressive tumor disease. Given that current treatment regimens offer a median survival of six months only, it is likely that this type of tumor requires an extended multimodal treatment approach to improve prognosis. In an earlier case report, we could show that an oncolytic herpes simplex virus (T-VEC) is functional in NC patients.

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Article Synopsis
  • During the COVID-19 pandemic, the Dr. Risch medical group utilized a specific RT-PCR testing kit for diagnosing infections in Switzerland and Liechtenstein, which targeted three genes essential for identifying the virus.
  • The emergence of the Alpha variant (B.1.1.7) led to a notable diagnostic issue, where the S-gene target was absent due to genetic deletions, marking it as an early indicator of new variants; this phenomenon was also seen in Omicron but not with the Delta variant.
  • Over two years, the group studied the significance of S-gene target failure (SGTF) as a signal for identifying variants, confirming that differences in cycle threshold values could help distinguish true SGTF cases from discrepancies
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Effective treatment options for peritoneal surface malignancies (PSMs) are scarce. Oncolytic virotherapy with recombinant vaccinia viruses might constitute a novel treatment option for PSM. We aimed to identify the most effective oncolytic vaccinia virus strain in two murine mesothelioma cell lines and the oncolytic potential in a murine model of peritoneal mesothelioma.

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