Publications by authors named "M P Roux-van der Merwe"

Objective: This study evaluated the effects of bony increased offset (BIO) and metallic augments (MAs) on primary reverse shoulder arthroplasty (RSA) baseplate stability in cadaveric specimens with variable bone densities.

Methods: Thirty cadaveric specimens were analyzed in an imaging and biomechanical investigation. Computed tomography (CT) scans allowed for preoperative RSA planning and bone density analysis.

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Dried blood spot (DBS) assays to quantify novel and repurposed drugs for the treatment of rifampicin-resistant tuberculosis (RR-TB) would facilitate pharmacokinetic studies and therapeutic drug monitoring in low-middle income settings, considering their ease of application and simple sample storage requirements. We describe a DBS method for the simultaneous quantification of bedaquiline and metabolite N-desmethyl bedaquiline, linezolid, levofloxacin, and clofazimine. The analytes were extracted from the matrix and isolated by solid-phase extraction.

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Background: Seed banks are a vital resource for preserving plant species diversity globally. However, seedling establishment and survival rates from banked seeds can be poor. Despite a growing appreciation for the role of seed-associated microbiota in supporting seed quality and plant health, our understanding of the effects of conventional seed banking processes on seed microbiomes remains limited.

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Article Synopsis
  • A highly sensitive LC-MS/MS method was developed to measure total and unbound doravirine in plasma from patients in a clinical trial, utilizing a single calibration curve for both forms of the drug.
  • The method involved protein precipitation for total doravirine extraction and ultrafiltration for unbound doravirine, employing specific chromatography techniques to ensure accurate analysis.
  • Validation tests confirmed the method's precision and robustness against various sample conditions, meeting international standards for effective quantification of doravirine concentrations.
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