H
Hyagriv N. Simhan
Researcher at University of Pittsburgh
Publications - 31
Citations - 4347
Hyagriv N. Simhan is an academic researcher from University of Pittsburgh. The author has contributed to research in topics: Pregnancy & Vitamin D and neurology. The author has an hindex of 21, co-authored 31 publications receiving 3571 citations.
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Journal ArticleDOI
Maternal Vitamin D Deficiency Increases the Risk of Preeclampsia
Lisa M. Bodnar,Janet M. Catov,Hyagriv N. Simhan,Michael F. Holick,Robert W. Powers,James M. Roberts +5 more
TL;DR: A nested case-control study of pregnant women followed from less than 16 wk gestation to delivery to assess the effect of maternal 25-hydroxyvitamin D [25(OH)D] concentration on the risk of preeclampsia and the vitamin D status of newborns of preeClamptic mothers.
Journal ArticleDOI
High prevalence of vitamin d insufficiency in black and white pregnant women residing in the northern united states and their neonates
Lisa M. Bodnar,Hyagriv N. Simhan,Robert W. Powers,Michael P. Frank,Emily Cooperstein,James M. Roberts +5 more
TL;DR: Black and white pregnant women and neonates residing in the northern US are at high risk of vitamin D insufficiency, even when mothers are compliant with prenatal vitamins, and higher-dose supplementation is needed to improve maternal and neonatal vitamin D nutriture.
Journal ArticleDOI
Labor Induction versus Expectant Management in Low-Risk Nulliparous Women
William A. Grobman,Madeline Murguia Rice,Uma M. Reddy,Alan T.N. Tita,Robert M. Silver,Gail Mallett,Kim Hill,Elizabeth Thom,Yasser Y. El-Sayed,Annette Perez-Delboy,Dwight J. Rouse,George R. Saade,Kim A. Boggess,Suneet P. Chauhan,Jay D. Iams,Edward K. Chien,Brian M. Casey,Ronald S. Gibbs,Sindhu K. Srinivas,Geeta K. Swamy,Hyagriv N. Simhan,George A. Macones +21 more
TL;DR: Induction of labor at 39 weeks in low‐risk nulliparous women did not result in a significantly lower frequency of a composite adverse perinatal outcome, but it did result in less frequency of cesarean delivery.
Journal ArticleDOI
Maternal Vitamin D Deficiency Increases the Risk of Preeclampsia
Lisa M. Bodnar,Janet M. Catov,Hyagriv N. Simhan,Michael F. Holick,Robert W. Powers,James M. Roberts +5 more
TL;DR: Maternal vitamin D deficiency may be an independent risk factor for preeclampsia and vitamin D supplementation in early pregnancy should be explored for preventing preeclampedia and promoting neonatal well-being.
Journal ArticleDOI
Maternal Serum 25-Hydroxyvitamin D Concentrations Are Associated with Small-for-Gestational Age Births in White Women
Lisa M. Bodnar,Janet M. Catov,Joseph M. Zmuda,Margaret E. Cooper,Meredith Snook Parrott,James M. Roberts,Mary L. Marazita,Hyagriv N. Simhan +7 more
TL;DR: In this paper, the association between maternal serum 25-hydroxyvitamin D [25(OH)D] concentrations in early pregnancy and the risk of small-forgestational age birth (SGA) was investigated.