Publications by authors named "Yeon-Sun Ahn"
Article Synopsis
- - The study aimed to validate blood tests for Helicobacter pylori infection and gastric neoplasms by comparing their effectiveness in detecting these conditions among individuals in Korea.
- - The Chorus H. pylori test demonstrated higher sensitivity and specificity than the GastroPanel test, while the incidence of gastric neoplasms was notably higher in populations with corpus atrophy.
- - Results indicated that the methods for assessing corpus atrophy showed poor agreement overall, but advanced corpus atrophy measurements were consistent between different assessment techniques.
Article Synopsis
- A study analyzed antibody levels in 350 vaccinated individuals against SARS-CoV-2 at three different time points to assess how immunity changes after vaccination.
- Four different assays were used to measure antibody levels, revealing varying median inhibition percentages over time, indicating a decline in immunity after the second dose and before the booster shot.
- The findings highlight significant fluctuations in antibody values, providing essential data for future research and standardization of COVID-19 antibody testing.
Wild-type p53-induced phosphatase (Wip1 or PPM1D) is a serine/threonine protein phosphatase expressed under various stress conditions, which selectively inactivates p38 MAPK. The finding that this gene is amplified in association with frequent gain of 17q21-24 in breast cancers supports its role as a driver oncogene. However, the pathogenetic mechanism of the wip1 gene expression in breast carcinogenesis remains to be elucidated.
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