Thomas J McNanley

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BACKGROUND Maternal calcium intake and vitamin D status may affect fetal bone development. OBJECTIVE This study was designed to examine relations between maternal calcium intake, 25-hydroxyvitamin D [25(OH)D] status, and fetal bone growth across pregnancy. DESIGN This was a prospective longitudinal design. Maternal 25(OH)D, parathyroid hormone, and(More)
OBJECTIVE Our purpose was to determine the impact of early and late amniotomy on labor induction with continuous oxytocin infusion at term. STUDY DESIGN A total of 209 women admitted for labor induction were randomized to early or late amniotomy. The early amniotomy group (n = 106) had membranes ruptured as soon as it was deemed safe and feasible. The(More)
The determinants of placental transport of dietary iron remain largely uncharacterized. The objective of this research was to elucidate determinants of fetal Fe transfer from maternally ingested dietary heme and non-heme Fe. The study was undertaken in 19 pregnant females (16-32 y) who ingested intrinsically labeled (58)Fe-heme and a nonheme Fe source(More)
Heme iron absorption during pregnancy and the role of hepcidin in regulating dietary heme iron absorption remains largely unexplored. The objective of this research was to examine relative differences in heme (animal based) and nonheme (ferrous sulfate) iron utilization. This study was undertaken in 18 pregnant (ages 16-32 y; wk 32-35 of gestation) and 11(More)
OBJECTIVE To elucidate the role of maternal and neonatal iron status on placental transferrin receptor (TfR) expression. STUDY DESIGN AND OUTCOMES: Ninety-two healthy pregnant adolescents (ages 14-18 years) were followed across pregnancy. Maternal iron status (hemoglobin, hematocrit, serum ferritin, TfR, and total body iron) was assessed in mid-gestation(More)
Little is known about the expression of heme transporters in human placenta and possible associations between these transporters and maternal or neonatal iron status. To address this area of research, relative protein expression of 2 heme transporters, Feline Leukemia Virus, Subgroup C, Receptor 1 (FLVCR1) and Breast Cancer Resistance Protein (BCRP), was(More)
Few large studies have assessed changes in calcitropic hormones and maternal 25-hydroxyvitamin D (25(OH)D) status across pregnancy, and how this may impact maternal bone turnover and neonatal hormone status. We aimed to identify determinants of 25(OH)D, parathyroid hormone (PTH), and calcitriol across pregnancy in a longitudinal study of 168 pregnant(More)
The objective of this article is to determine through meta-analysis of published literature whether active management of labor lowers the cesarean delivery rate for dystocia in nulliparas. Using MEDLINE and reference citations to 1966, 18 published reports in English on active management of labor were identified. Selection criteria for five selected studies(More)
Our objective was to identify practice patterns of members of the Society of Perinatal Obstetricians with regard to the management of thromboembolic disease in pregnant women. We sent survey-questionnaires to members of the Society of Perinatal Obstetricians and requested information on antepartum and postpartum management of four clinical case scenarios.(More)
Osteoprotegerin (OPG) is involved in the regulation of bone turnover, but little is known about this protein during pregnancy or among neonates. We undertook a prospective longitudinal study to identify relationships between OPG, markers of bone turnover and birth outcomes in 155 pregnant adolescents (13-18 years) and their newborns. Maternal blood samples(More)
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