Benjamin Kuo

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Ribosome biogenesis requires ∼200 assembly factors in Saccharomyces cerevisiae. The pre-ribosomal RNA (rRNA) processing defects associated with depletion of most of these factors have been characterized. However, how assembly factors drive the construction of ribonucleoprotein neighborhoods and how structural rearrangements are coupled to pre-rRNA(More)
Dextromethorphan is used widely in vivo to phenotype the polymorphically expressed cytochrome P450 (CYP) 2D6. Also dextromethorphan is N-demethylated in vivo to 3-methoxymorphinan by human CYP3A4/5. The metabolic ratio (MR) of dextromethorphan/3-methoxymorphinan in plasma, saliva and urinary were examined as a possible in vivo probe of CYP3A activity. In(More)
To understand the genetic makeup and impact on pharmacokinetics (PK) in the Taiwanese population, we analyzed the pharmacogenetic (PG) profile and demonstrated its effects on enzyme metabolism using indapamide as an example. A multiplex mass spectrometry method was used to examine the single nucleotide polymorphism (SNP) profile of eight major phases I and(More)
A sensitive and selective liquid chromatography-tandem mass spectrometry (LC-MS-MS) method for the determination of quetiapine was developed and validated over the linearity range 1-1500 ng/mL with 0.1 mL of plasma using clozapine as the internal standard. Detection was performed on a triple-quadrupole tandem mass spectrometer using positive electrospray(More)
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