Details

Autor(en) / Beteiligte

• van Willigenburg, Hester
• van Domburg, Bart
• Ambagtsheer, Gisela
• Brandt, Renata M C
• Hesselink, Dennis A
• de Bruin, Ron W F
• de Winter, Brenda C M

Titel

Validation of a dried blood spot method to measure tacrolimus concentrations in small volumes of mouse blood

Ist Teil von

• Bioanalysis, 2022-04, Vol.14 (7), p.441-449

Ort / Verlag

Newlands Press Ltd

Erscheinungsjahr

2022

Beschreibungen/Notizen

• The small blood volume of mice complicates tacrolimus pharmacokinetic studies in these animals. Here we explored dried blood spot (DBS) as a novel method to measure tacrolimus blood concentrations in mice. DBS samples were collected from three sampling sites (cheek, tail and heart) and compared with heart whole blood samples measured via LC–MS/MS. Tacrolimus concentrations in the whole blood samples ranged from 2.56 to 27.64 μg/l. DBS of cheek vein blood was the most reliable sampling site, with a mean bias of 0.15 μg/l (95% CI: -4.20 to 4.50). The DBS cheek method can be used for serial monitoring of tacrolimus blood concentrations in mice, offering an animal-friendly method for tacrolimus pharmacokinetic studies in mice.