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Oxidation of PTH: in vivo feature or effect of preanalytical conditions?
Ursem SR, Vervloet MG, Hillebrand JJG, de Jongh RT, Heijboer AC. Ursem SR, et al. Clin Chem Lab Med. 2018 Jan 26;56(2):249-255. doi: 10.1515/cclm-2017-0313. Clin Chem Lab Med. 2018. PMID: 28809747
We determined effects of storage temperature, time until centrifugation and freeze-thaw cycles. PTH and n-oxPTH concentrations were measured in each sample using six different immunoassays. RESULTS: n-oxPTH concentrations remained unchanged up to 180 min unti …
We determined effects of storage temperature, time until centrifugation and freeze-thaw cycles. PTH and n-oxPTH concent …
Long-term stability of biochemical markers in pediatric serum specimens stored at -80 C: a CALIPER Substudy.
Brinc D, Chan MK, Venner AA, Pasic MD, Colantonio D, Kyriakopolou L, Adeli K. Brinc D, et al. Clin Biochem. 2012 Jul;45(10-11):816-26. doi: 10.1016/j.clinbiochem.2012.03.029. Epub 2012 Apr 5. Clin Biochem. 2012. PMID: 22510430
OBJECTIVES: Pediatric serum samples collected from healthy children in the CALIPER (Canadian Laboratory Initiative in Pediatric Reference Interval) project are stored at -80 C for various periods of time. This study aimed to determine the stability of chemistry, protein …
OBJECTIVES: Pediatric serum samples collected from healthy children in the CALIPER (Canadian Laboratory Initiative in Pediatric Reference In …