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CONTEXT Treatment of 21-hydroxylase deficiency (21OHD) is difficult to optimize. Normalization of excessive ACTH and adrenal steroid production commonly requires supraphysiologic doses of glucocorticoids. OBJECTIVES We evaluated the safety and tolerability of the selective corticotropin releasing factor type 1 (CRF1) receptor antagonist NBI-77860 in women(More)
An on-line solid-phase extraction liquid chromatography/tandem mass spectrometry (SPE LC/MS/MS) assay using a newly developed SPE column and a monolithic column was developed and validated for direct analysis of plasma samples containing multiple analytes. This assay was developed in an effort to increase bioanalysis throughput and reduce the complexity of(More)
BACKGROUND Urocortin 2 and urocortin 3 are endogenous peptides with an emerging role in cardiovascular pathophysiology. We assessed their pharmacodynamic profile and examined the role of the endothelium in mediating their vasomotor effects in vivo in man. METHODS AND RESULTS Eighteen healthy male volunteers (23±4 years) were recruited into a series of(More)
A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to extract and quantify the androgen concentration in the rat prostate. This method introduced a novel 96-well plate format for the extraction and derivatization of testosterone (T) and dihydrotestosterone (DHT) from rat prostatic tissue that greatly simplified the sample(More)
Valbenazine (VBZ) is a vesicular monoamine transporter 2 (VMAT2) inhibitor approved for the treatment of tardive dyskinesia. The safety, tolerability and pharmacokinetics of VBZ following single and repeat once-daily (QD) dosing were evaluated in 2 randomized, single-center, double-blind studies in healthy male subjects. In the first study, 2 cohorts of 8(More)
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