Publications by authors named "Christopher Hendra"

Article Synopsis
  • Intra and inter-pathologist variability complicates the evaluation of metabolic dysfunction-associated steatohepatitis (MASH) biopsy results, hindering patient selection and assessment quality in clinical trials.
  • A study analyzed 120 histology slides with and without AI assistance to evaluate its impact on pathologists' reliability in fibrosis staging, especially for early fibrosis stages.
  • Results showed that AI assistance significantly improved concordance among pathologists, increasing agreement rates for clinical trial inclusion and exclusion, which could enhance the overall efficiency and reliability of MASH-related clinical research.
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RNA modifications such as m6A methylation form an additional layer of complexity in the transcriptome. Nanopore direct RNA sequencing can capture this information in the raw current signal for each RNA molecule, enabling the detection of RNA modifications using supervised machine learning. However, experimental approaches provide only site-level training data, whereas the modification status for each single RNA molecule is missing.

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Acute myocardial infarction (AMI) is a leading cause of mortality and morbidity worldwide. Diagnostic challenges remain in this highly time-sensitive condition. Using capillary electrophoresis-laser-induced fluorescence, we analyzed the blood plasma N-glycan profile in a cohort study comprising 103 patients with AMI and 69 controls.

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Nanopore sequencing provides signal data corresponding to the nucleotide motifs sequenced. Through machine learning-based methods, these signals are translated into long-read sequences that overcome the read size limit of short-read sequencing. However, analyzing the raw nanopore signal data provides many more opportunities beyond just sequencing genomes and transcriptomes: algorithms that use machine learning approaches to extract biological information from these signals allow the detection of DNA and RNA modifications, the estimation of poly(A) tail length, and the prediction of RNA secondary structures.

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RNA modifications, such as N-methyladenosine (mA), modulate functions of cellular RNA species. However, quantifying differences in RNA modifications has been challenging. Here we develop a computational method, xPore, to identify differential RNA modifications from nanopore direct RNA sequencing (RNA-seq) data.

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