scholarly journals Comparison of Current-Use Pesticide and Other Toxicant Urinary Metabolite Levels among Pregnant Women in the CHAMACOS Cohort and NHANES

2010 ◽  
Vol 118 (6) ◽  
pp. 856-863 ◽  
Author(s):  
Rosemary Castorina ◽  
Asa Bradman ◽  
Laura Fenster ◽  
Dana Boyd Barr ◽  
Roberto Bravo ◽  
...  
2021 ◽  
Author(s):  
Takafumi Yamauchi ◽  
Daisuke Ochi ◽  
Naomi Matsukawa ◽  
Daisuke Saigusa ◽  
Mami Ishikuro ◽  
...  

Abstract The elucidation of dynamic metabolomic changes during gestation is particularly important for the development of methods to evaluate pregnancy status or achieve earlier detection of pregnancy-related complications. Some studies have constructed models to evaluate pregnancy status and predict gestational age using omics data from blood biospecimens; however, less invasive methods are desired. Here we propose a model to predict gestational age, using urinary metabolite information. In our prospective cohort study, we collected 2,741 urine samples from 187 healthy pregnant women, 23 patients with hypertensive disorders of pregnancy, and 14 patients with spontaneous preterm birth. Using gas chromatography-tandem mass spectrometry, we identified 184 urinary metabolites that showed dynamic systematic changes in healthy pregnant women according to gestational age. A model to predict gestational age during normal pregnancy progression was constructed; the correlation coefficient between actual and predicted weeks of gestation was 0.86. The predicted gestational ages of cases with hypertensive disorders of pregnancy exhibited significant progression, compared with actual gestational ages. This is the first study to predict gestational age in normal and complicated pregnancies by using urinary metabolite information. Minimally invasive urinary metabolomics might facilitate changes in the prediction of gestational age in various clinical settings.


2019 ◽  
Vol 3 ◽  
pp. 189
Author(s):  
Kalantzi O ◽  
Castorina R ◽  
Gunier R ◽  
Kogut K ◽  
Holland N ◽  
...  

2013 ◽  
Vol 216 (6) ◽  
pp. 735-742 ◽  
Author(s):  
Uta Enke ◽  
Ekkehard Schleussner ◽  
Claudia Pälmke ◽  
Lydia Seyfarth ◽  
Holger Martin Koch

2009 ◽  
Vol 14 (3) ◽  
pp. 180-187 ◽  
Author(s):  
Yayoi Suzuki ◽  
Mayu Niwa ◽  
Jun Yoshinaga ◽  
Chiho Watanabe ◽  
Yoshifumi Mizumoto ◽  
...  

1965 ◽  
Vol 50 (2) ◽  
pp. 273-288 ◽  
Author(s):  
U. Goebelsmann ◽  
G. Eriksson ◽  
N. Wiqvist ◽  
E. Diczfalusy

ABSTRACT A combination of oestriol-15-3H-3-sulphate (OE3-15-3H-3S) and oestriol-16-14C-16(17?)-glucosiduronate (OE3-16-14C-16(17?)Gl) was administered in the form of a continuous intravenous infusion over 310 and 280 min, respectively, to two women at midpregnancy prior to the interruption of gestation. Eighty and 66 per cent, respectively, of the administered 3H-labelled material and 87 and 83 per cent, respectively, of the 14C-labelled material was recovered within 24 hours from the urine of the two subjects. 3H-labelled OE3-3S and both 3H- and 14C-labelled OE3-16(17?)Gl and oestriol-3-glucosiduronate (OE3-3Gl) were isolated from the urine of both patients in a radiochemically homogeneous form. No 14C-labelled material was found in the OE3-3S isolated. During the continuous infusion period, some 26 per cent of the urinary 3H-labelled material was excreted as OE3-3S, 68 per cent was present as OE3-16(17?)Gl and 6 per cent as OE3-3Gl. Corresponding proportions of the 14C-labelled urinary material were: 97 per cent OE3-16(17?)Gl and 3 per cent OE3-3Gl. During the postinfusion period, the pattern of urinary conjugates showed a marked change: only 2 per cent of the 3H-labelled material was excreted as OE3-3S, 31 per cent was OE3-16(17?)Gl and as much as 67 per cent was OE3-3Gl. Corresponding figures for the 14C-labelled material were: 33 per cent OE3-16(17?)Gl and 67 per cent OE3-3Gl. No radioactive oestrogens other than OE3 were detected. The endogenous urinary oestriol (OE3) excretion during the 24 hours of experiment (expressed in OE3-equivalents) was: 0.086 mg OE3-3S, 1.87 mg OE3-16(17?)Gl and 1.57 mg of OE3-3Gl in the first subject and 0.13 mg OE3-3S, 3.01 mg OE3-16(17?)Gl and 1.53 mg of OE3-3Gl in the second patient. From the relationship between the specific activities of the injected and isolated oestriol conjugates the amount of OE3-3S and OE3-16(17?)Gl reaching the maternal circulation during 24 hours was calculated. On basis of these values it is concluded that in midpregnancy the bulk of oestriol conjugates in the blood consists of glucosiduronates rather than of sulphates and that OE3-3Gl is a quantitatively important urinary metabolite not only of circulating OE3, but also of OE3-3S and OE3-16(17?)Gl.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takafumi Yamauchi ◽  
Daisuke Ochi ◽  
Naomi Matsukawa ◽  
Daisuke Saigusa ◽  
Mami Ishikuro ◽  
...  

AbstractThe elucidation of dynamic metabolomic changes during gestation is particularly important for the development of methods to evaluate pregnancy status or achieve earlier detection of pregnancy-related complications. Some studies have constructed models to evaluate pregnancy status and predict gestational age using omics data from blood biospecimens; however, less invasive methods are desired. Here we propose a model to predict gestational age, using urinary metabolite information. In our prospective cohort study, we collected 2741 urine samples from 187 healthy pregnant women, 23 patients with hypertensive disorders of pregnancy, and 14 patients with spontaneous preterm birth. Using gas chromatography-tandem mass spectrometry, we identified 184 urinary metabolites that showed dynamic systematic changes in healthy pregnant women according to gestational age. A model to predict gestational age during normal pregnancy progression was constructed; the correlation coefficient between actual and predicted weeks of gestation was 0.86. The predicted gestational ages of cases with hypertensive disorders of pregnancy exhibited significant progression, compared with actual gestational ages. This is the first study to predict gestational age in normal and complicated pregnancies by using urinary metabolite information. Minimally invasive urinary metabolomics might facilitate changes in the prediction of gestational age in various clinical settings.


1998 ◽  
Vol 5 (1) ◽  
pp. 143A-143A ◽  
Author(s):  
G DILDY ◽  
C LOUCKS ◽  
T PORTER ◽  
C SULLIVAN ◽  
M BELFORT ◽  
...  

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