While a best practice for evaluating the behaviour of genetic clustering algorithms on empirical data is to conduct parallel analyses on simulated data, these types of simulation techniques often involve sampling genetic data with replacement. In this paper we demonstrate that sampling with replacement, especially with large marker sets, inflates the perceived statistical power to correctly assign individuals (or the alleles that they carry) back to source populations-a phenomenon we refer to as resampling-induced, spurious power inflation (RISPI). To address this issue, we present gscramble, a simulation approach in R for creating biologically informed individual genotypes from empirical data that: (1) samples alleles from populations without replacement and (2) segregates alleles based on species-specific recombination rates.
View Article and Find Full Text PDFCapecitabine is a widely used drug for cancer treatment. Capecitabine is a derivative of 5-fluorouracil (5-FU). A known complication of 5-FU is hyperammonaemia which can cause encephalopathy.
View Article and Find Full Text PDFDuctal carcinomas, a variant of salivary gland cancer, are characterized by concurrent androgen receptor (AR) positivity and overexpression of HER2, making them potential targets for tailored therapies extensively explored in literature. We present two consecutive cases of patients diagnosed with inoperable metastatic ductal carcinoma, both displaying HER2 overexpression and AR positivity, who underwent combination therapy involving chemotherapy and dual targeted agents. Both patients diagnosed with centralized inoperable ductal carcinoma were retrospectively analyzed and received trastuzumab, docetaxel, leuprolide and bicalutamida as first-line therapy until progression, defined by RECIST criteria.
View Article and Find Full Text PDFIntroduction: Squamous cell carcinoma of the head and neck (SCCHN) is a multifactorial disease involving genetic and environmental factors representing one of the most frequent cancer-related deaths worldwide. Tobacco and alcohol use account for most SCCHN, while a growing subset of oropharyngeal cancers is causally associated with human papillomavirus (HPV) infection. Despite improvements in overall survival, patients with HPV-negative locally advanced (LA) SCCHN continue to have a poor prognosis.
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