scholarly journals Do Reduced Cord Blood Neurotrophins Predict Developmental Delay in the Very Preterm Neonate at 24 Months Corrected Gestational Age?

2018 ◽  
Vol 54 ◽  
pp. 111-111
Keyword(s):  
Cord Blood ◽  
Developmental Delay ◽  
Gestational Age ◽  
Preterm Neonate ◽  
Very Preterm

Abstract #91: Comparison of Cord Blood Insulin in Large-for-Gestational-Age Infants and Appropriate-for-Age Filipino Infants of Nondiabetic Mothers: A Pilot Study

2004 ◽  
Vol 10 ◽  
pp. 31
Author(s):  
Florence M. Amorado-Santos ◽  
Maria Honolina S. Gomez ◽  
Maria Victoria R. Olivares ◽  
Zayda N. Gamilla
Keyword(s):  
Pilot Study ◽  
Cord Blood ◽  
Gestational Age ◽  
Large For Gestational Age ◽  
Blood Insulin

Behaviour at 2 years of age in very preterm infants (gestational age <32 weeks)

2003 ◽  
Vol 92 (5) ◽  
pp. 1-1 ◽  
Author(s):  
GMSJ Stoelhorst ◽  
SE Martens ◽  
M Rijken ◽  
van Zwieten PHT ◽  
AH Zwinderman ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Gestational Age ◽  
Very Preterm Infants ◽  
Very Preterm

scholarly journals Birthweight DNA methylation signatures in infant saliva

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Chiara Moccia ◽  
Maja Popovic ◽  
Elena Isaevska ◽  
Valentina Fiano ◽  
Morena Trevisan ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Cord Blood ◽  
Gestational Age ◽  
Low Birthweight ◽  
Continuous Variable ◽  
Linear Regression Models ◽  
Association Analyses ◽  
Cpg Sites ◽  
Adverse Health Outcomes ◽  
The Look

Abstract Background Low birthweight has been repeatedly associated with long-term adverse health outcomes and many non-communicable diseases. Our aim was to look-up cord blood birthweight-associated CpG sites identified by the PACE Consortium in infant saliva, and to explore saliva-specific DNA methylation signatures of birthweight. Methods DNA methylation was assessed using Infinium HumanMethylation450K array in 135 saliva samples collected from children of the NINFEA birth cohort at an average age of 10.8 (range 7–17) months. The association analyses between birthweight and DNA methylation variations were carried out using robust linear regression models both in the exploratory EWAS analyses and in the look-up of the PACE findings in infant saliva. Results None of the cord blood birthweight-associated CpGs identified by the PACE Consortium was associated with birthweight when analysed in infant saliva. In saliva EWAS analyses, considering a false discovery rate p-values < 0.05, birthweight as continuous variable was associated with DNA methylation in 44 CpG sites; being born small for gestational age (SGA, lower 10th percentile of birthweight for gestational age according to WHO reference charts) was associated with DNA methylation in 44 CpGs, with only one overlapping CpG between the two analyses. Despite no overlap with PACE results at the CpG level, two of the top saliva birthweight CpGs mapped at genes associated with birthweight with the same direction of the effect also in the PACE Consortium (MACROD1 and RPTOR). Conclusion Our study provides an indication of the birthweight and SGA epigenetic salivary signatures in children around 10 months of age. DNA methylation signatures in cord blood may not be comparable with saliva DNA methylation signatures at about 10 months of age, suggesting that the birthweight epigenetic marks are likely time and tissue specific.

scholarly journals Associations of circulating folate, vitamin B12 and homocysteine concentrations in early pregnancy and cord blood with epigenetic gestational age: the Generation R Study

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Giulietta S. Monasso ◽  
Leanne K. Küpers ◽  
Vincent W. V. Jaddoe ◽  
Sandra G. Heil ◽  
Janine F. Felix
Keyword(s):  
Dna Methylation ◽  
Vitamin B12 ◽  
Cord Blood ◽  
Gestational Age ◽  
Fetal Development ◽  
Maternal Plasma ◽  
Plasma Homocysteine ◽  
Training Population ◽  
Epigenetic Aging ◽  
Pregnancy Dating

Abstract Background Circulating folate, vitamin B12 and homocysteine concentrations during fetal development have been associated with health outcomes in childhood. Changes in fetal DNA methylation may be an underlying mechanism. This may be reflected in altered epigenetic aging of the fetus, as compared to chronological aging. The difference between gestational age derived in clinical practice and gestational age predicted from neonatal DNA methylation data is referred to as gestational age acceleration. Differences in circulating folate, vitamin B12 and homocysteine concentrations during fetal development may be associated with gestational age acceleration. Results Up to 1346 newborns participating in the Generation R Study, a population-based prospective cohort study, had both cord blood DNA methylation data available and information on plasma folate, serum total and active B12 and plasma homocysteine concentrations, measured in early pregnancy and/or in cord blood. A subgroup of 380 newborns had mothers with optimal pregnancy dating based on a regular menstrual cycle and a known date of last menstrual period. For comparison, gestational age acceleration was calculated based the method of both Bohlin and Knight. In the total study population, which was more similar to Bohlin’s training population, one standard deviation score (SDS) higher maternal plasma homocysteine concentrations was nominally associated with positive gestational age acceleration [0.07 weeks, 95% confidence interval (CI) 0.02, 0.13] by Bohlin’s method. In the subgroup with pregnancy dating based on last menstrual period, the method that was also used in Knight’s training population, one SDS higher cord serum total and active B12 concentrations were nominally associated with negative gestational age acceleration [(− 0.16 weeks, 95% CI − 0.30, − 0.02) and (− 0.15 weeks, 95% CI − 0.29, − 0.01), respectively] by Knight’s method. Conclusions We found some evidence to support associations of higher maternal plasma homocysteine concentrations with positive gestational age acceleration, suggesting faster epigenetic than clinical gestational aging. Cord serum vitamin B12 concentrations may be associated with negative gestational age acceleration, indicating slower epigenetic than clinical gestational aging. Future studies could examine whether altered fetal epigenetic aging underlies the associations of circulating homocysteine and vitamin B12 blood concentrations during fetal development with long-term health outcomes.

Gestational Age Dependency of Umbilical Cord Serum IL-6 Levels for Detecting Fetal Inflammation

2020 ◽  
Author(s):  
Sota Iwatani ◽  
Takao Kobayashi ◽  
Sachiko Matsui ◽  
Akihiro Hirata ◽  
Miwa Yamamoto ◽  
...  
Keyword(s):  
Umbilical Cord ◽  
Gestational Age ◽  
Area Under The Curve ◽  
Roc Curves ◽  
Significant Negative Correlation ◽  
Cord Serum ◽  
Very Preterm ◽  
Key Points ◽  
Extremely Preterm ◽  
Preterm Newborns

Objective The fetal inflammatory response syndrome (FIRS) is characterized by elevated concentrations of inflammatory cytokines in fetal blood, with preterm delivery and morbidity. Umbilical cord serum interleukin-6 (UC-s-IL-6) is an ideal marker for detecting FIRS. However, the effect of gestational age (GA) on UC-s-IL-6 levels has not been reported. This study aimed to determine the relationship between GA and UC-s-IL-6 levels, and GA-dependent cutoff values of UC-s-IL-6 levels for detecting fetal inflammation. Study Design UC-s-IL-6 concentrations were measured in 194 newborns (44 extremely preterm newborns (EPNs) at 22–27 weeks' GA, 68 very preterm newborns (VPNs) at 28–31 weeks' GA, and 82 preterm newborns (PNs) at 32–34 weeks' GA). Linear regression analyses were used to correlate GA and UC-s-IL-6 levels. Receiver operating characteristic (ROC) curves analyses were performed for detecting the presence of funisitis, as the histopathological counterpart of FIRS. Results A significant negative correlation between GA and UC-s-IL-6 levels was found in newborns with severe funisitis (r s =  − 0.427, p = 0.004) and those with mild funisitis (r s =  − 0.396, p = 0.025). ROC curve analyses revealed the area under the curve for detecting funisitis were 0.856, 0.837, and 0.622 in EPNs, VPNs, and PNs, respectively. The UC-s-IL-6 cutoff value in EPNs (28.1 pg/mL) exceeded those in VPNs and PNs (3.7 and 3.0 pg/mL, respectively). Conclusion UC-s-IL-6 levels were inversely correlated with GA especially in newborns with funisitis. Such GA dependency of UC-s-IL-6 should be considered for detecting fetal inflammation. Key Points

Propensity-Matched Comparison of Very Preterm Small- and Appropriate-for-Gestational-Age Neonates

2021 ◽  
Author(s):  
Rajendra Prasad Anne ◽  
Venkateshwarulu Vardhelli ◽  
Tejo Pratap Oleti ◽  
Srinivas Murki ◽  
Gopireddy Murali Mohan Reddy ◽  
...  
Keyword(s):  
Gestational Age ◽  
Very Preterm ◽  
Appropriate For Gestational Age ◽  
Matched Comparison

Differential Patterns of 27 Cord Blood Immune Biomarkers Across Gestational Age

PEDIATRICS ◽  
2009 ◽  
Vol 123 (5) ◽  
pp. 1320-1328 ◽  
Author(s):  
N. Matoba ◽  
Y. Yu ◽  
K. Mestan ◽  
C. Pearson ◽  
K. Ortiz ◽  
...  
Keyword(s):  
Cord Blood ◽  
Gestational Age ◽  
Immune Biomarkers

Inflammatory Markers in Umbilical Cord Blood from Small-For-Gestational-Age Newborns

2014 ◽  
Vol 33 (2) ◽  
pp. 114-118 ◽  
Author(s):  
Ulrik Lausten-Thomsen ◽  
Marianne Olsen ◽  
Gorm Greisen ◽  
Kjeld Schmiegelow
Keyword(s):  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Inflammatory Markers
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