title: Antenatal administration of celecoxib, a selective cyclooxygenase (COX)-2 inhibitor, appears to improve placental perfusion in the pregnant rabbit.
abstract: To investigate the effects of celecoxib on fetal growth, and placental prostanoid and nitric oxide (NO) production in fetal rabbits, pregnant rabbits received celecoxib (30 mg/kg per day) from 13 to 20 days (Cel-A), from 13 to 28 days (Cel-B), or vehicle from 13 to 28 days gestation. Fetal body and organ weights, and measurements of linear growth were recorded. The placentas were weighed and analyzed for prostaglandins (PGs), NO oxidation products (NOx), and total cellular protein levels. Placental prostaglandin E2 (PGE2) and NOx levels increased (P < or = 0.05), while thromboxane B2 levels were suppressed (P < or = 0.01) in Cel-B group. Tail length and brain weight were greater, while lung weights were lower in the Cel-B group (P < or = 0.05). Maternal administration of celecoxib appears to preferentially increase placental vasodilators and decrease placental TxA2, suggesting that the drug may increase uteroplacental perfusion without adverse fetal outcome.
authors.affiliation: Division of Maternal-Fetal Medicine, Women's Hospital, Long Beach Memorial Medical Center, 2801 Atlantic Avenue, Long Beach, CA, USA.
authors.forename: Nicole
authors.initials: N
authors.lastname: Hausman
authors.forename: Kay
authors.initials: K
authors.lastname: Beharry
authors.forename: Kenji
authors.initials: K
authors.lastname: Nishihara
authors.forename: Yasir
authors.initials: Y
authors.lastname: Akmal
authors.forename: Tamerou
authors.initials: T
authors.lastname: Asrat
mesh_terms: D015121:6-Ketoprostaglandin F1 alpha / Q000378:metabolism; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D000068579:Celecoxib; D051546:Cyclooxygenase 2; D052246:Cyclooxygenase 2 Inhibitors; D016861:Cyclooxygenase Inhibitors / Q000494:pharmacology*; D005260:Female; D007527:Isoenzymes / Q000037:antagonists & inhibitors; D009569:Nitric Oxide / Q000378:metabolism; D009929:Organ Size / Q000187:drug effects; D010477:Perfusion; D010920:Placenta / Q000187:drug effects* / Q000378:metabolism; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000187:drug effects; D011451:Prostaglandin-Endoperoxide Synthases; D011453:Prostaglandins / Q000378:metabolism; D011720:Pyrazoles; D011817:Rabbits; D013449:Sulfonamides / Q000494:pharmacology*; D013929:Thromboxane B2 / Q000378:metabolism; D013997:Time Factors
chemical_list: D052246:Cyclooxygenase 2 Inhibitors; D016861:Cyclooxygenase Inhibitors; D007527:Isoenzymes; D011453:Prostaglandins; D011720:Pyrazoles; D013449:Sulfonamides; D009569:Nitric Oxide; D013929:Thromboxane B2; D015121:6-Ketoprostaglandin F1 alpha; D051546:Cyclooxygenase 2; D011451:Prostaglandin-Endoperoxide Synthases; D000068579:Celecoxib