4-Pyridoxic acid

ID157
Name4-Pyridoxic acid
Synonyms[Vitamin B6] /Pyridoxic acid
StructureThumb
DescriptionMetabolite of vitamin B6. Usually measured in urine.
GroupPyridines
Sub-groupHydroxypyridines
Exposure sourceDiet
UseVitamins
CAS number82-82-6
PubChem ID6723
ChEBI ID17405
FooDB IDFDB021874
HMDB IDHMDB00017

Biomarker measurements

Biomarker concentration values

IDParent IDDepthSubject groupPopulationCountryCountry codeCohortTime definitionBiospecimenAnalytical methodBiomarkerBiomarker detailMeasurement sizeDetected (nb)Detected (%)Detected only?Arithmethic meanArithmethic SDGeometric meanGeometric SDMinMin (detected)Percentile_05Percentile_10Percentile_25MedianPercentile_75Percentile_90Percentile_95MaxInterquartile rangeMean 95% CI lowerMean 95% CI upperGMean 95% CI lowerGMean 95% CI upperUnitConverted arithmetic meanConverted geometric meanConverted medianAdjustment typeAdjusted onRegressed onExpressed asPublication
11120AllElementary-school childrenJapanJPbaselineUrine, 24-hHPLC4-Pyridoxic acid1082.360.92umol/day2.4 umol/dayCrudeTsuji 2011
13150AllUniversity studentsJapanJPbaselineUrine, 24-hHPLC4-Pyridoxic acid1483.681.31umol/day3.7 umol/dayCrudeTsuji 2010
17800AllElderly womenJapanJPDay 4Urine, 24-hHPLC4-Pyridoxic acid354.452.26umol/day4.4 umol/dayCrudeTsuji 2010
32850MalesHigh school studentsTaiwanTWUrine, 24-hHPLC4-Pyridoxic acid656.32.8umol/day6.3 umol/dayCrudeChang 2007
32870FemalesHigh school studentsTaiwanTWUrine, 24-hHPLC4-Pyridoxic acid626.12.6umol/day6.1 umol/dayCrudeChang 2007

Intake values

No data available

Correlation values

Reproducibility values

IDMst. IDSubject groupPopulationCountryCountry codeCohortTime definitionBiological specimenExperimental methodBiomarkerBiomarker detailArithmetic meanGeometric meanMedianUnitAdjusted onReproducibility sizeICCICC 95% CI lowerICC 95% CI upperCV% WSCV% BSVAR WSVAR BSPublication
66019117MalesCollege students consuming a semi-purified diet with water-soluble vitaminsJapanJPbaseline; 1 day; 2 days; 3 days; 4 days; 5 days; 6 daysUrine, 24-hHPLC4-Pyridoxic acidmmol/L1017.426.5Shibata 2009
67819135FemalesCollege students consuming a semi-purified diet with water-soluble vitaminsJapanJPbaseline; 1 day; 2 days; 3 days; 4 days; 5 days; 6 daysUrine, 24-hHPLC4-Pyridoxic acidmmol/L1012.49.0Shibata 2009