… in 5-HT content suggested that season- and age-dependent … and used as quantification
standards for qPCR. Transcript … that the urinary excretion of 6-sulfatoxymelatonin (aMT6s) …

… time of flight mass spectrometry (MALDI-TOF MS) method (Mass-Fix) as … Mass-Fix has
demonstrated accurate quantitation in … Detection of M-proteins in urine was also tested in our initial …

… Melatonin undergoes first-pass hepatic metabolism and > 80% is excreted exclusively in
the urine as 6-sulfatoxymelatonin Citation[53]. Owing to the rapid absorption and short half-life …

… based on liquid chromatography-mass spectrometry (LC-MS) for the … by mass-spectrometric
measurement. Single TRF isoform … Determination of the mass of the various TRF isoforms is …

Objectives Hemoglobin (Hb) variants remain an important cause of erroneous HbA 1c
results. We present an approach to overcome the interference of Hb variants on HbA 1c …

… Mass spectrometer data were acquired in MS1 scan mode. All data acquisition was … to
6-sulfatoxymelatonin by aryl sulfotransferase in the liver and subsequently excreted in the urine (…

… provide values of derived biological quantities which are calculated from two or more
measured quantities through a functional relationship (eg albumin excretion rate, calculated …

… accounted for by 6-sulfatoxymelatonin in plasma and urine. … are not simply due to an
age-dependent melatonin deficiency. … requiredd to suppress melatonin secretion that may be both …

… The consistently observed age-dependent changes in … have even less 6-sulfatoxymelatonin
(6-SMT) excretion than age-… is excreted exclusively in the urine as 6-sulfatoxymelatonin. …

… specimens from participants, enabling the quantification of … also indicated a high excretion
of 6-sulfatoxymelatonin, another … Furthermore, age-dependent differences were identified …