American journal of reproductive immunology (New York, N.Y. : 1989) · 2021
Longitudinal profile of sHLA-G during pregnancy and its association with small for gestational age births in North Indian pregnant females: A nested case-control study.
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Sehgal Shilpi, Vyawhare Sushrut, Bhatnagar Shinjini, Kshetrapal Pallavi, GARBH-Ini study group
Аннотация
PROBLEM: Small for gestational age (SGA) neonates are vulnerable to various long and short-term adverse health consequences. The expression of HLA-G in the placenta is crucial for establishment and maintenance of pregnancy. Its aberrant expression could lead to perturbed immunological interactions in the placenta which could be associated with SGA births. The objective of this study was to assess the difference in the trajectories of soluble HLA-G in maternal sera during pregnancy between women delivering SGA and appropriate for gestational age (AGA) neonates.
METHOD OF STUDY: Soluble HLA-G was estimated in the maternal sera collected at different time points in pregnancy of North-Indian pregnant females delivering SGA (N = 23) or AGA (N = 17) neonates using sandwich ELISA. Linear mixed models were built and compared to study the association between sHLA-G levels during pregnancy and SGA births.
RESULTS: No significant difference was observed in the sHLA-G trajectories during pregnancy in mothers delivering SGA as compared to those delivering AGA (P-value = .5677). A trend towards higher sHLA-G levels at the first trimester of pregnancy (< 14 weeks of gestation) was observed in mothers delivering SGA neonates (Median = 41.71, IQR = 21.31-71.38) as compared to those delivering AGA neonates (Median = 37.58, IQR = 19.05-73.57).
CONCLUSION: During pregnancy, sHLA-G trajectories do not differ significantly between mothers delivering SGA and those delivering AGA neonates. However, sHLA-G trends towards higher levels during early pregnancy in mothers delivering SGA neonates.
METHOD OF STUDY: Soluble HLA-G was estimated in the maternal sera collected at different time points in pregnancy of North-Indian pregnant females delivering SGA (N = 23) or AGA (N = 17) neonates using sandwich ELISA. Linear mixed models were built and compared to study the association between sHLA-G levels during pregnancy and SGA births.
RESULTS: No significant difference was observed in the sHLA-G trajectories during pregnancy in mothers delivering SGA as compared to those delivering AGA (P-value = .5677). A trend towards higher sHLA-G levels at the first trimester of pregnancy (< 14 weeks of gestation) was observed in mothers delivering SGA neonates (Median = 41.71, IQR = 21.31-71.38) as compared to those delivering AGA neonates (Median = 37.58, IQR = 19.05-73.57).
CONCLUSION: During pregnancy, sHLA-G trajectories do not differ significantly between mothers delivering SGA and those delivering AGA neonates. However, sHLA-G trends towards higher levels during early pregnancy in mothers delivering SGA neonates.