Ingested bovine amniotic fluid enhances morphine antinociception in rats

Comparative morphogenesis of the fetal membranes and accessory uterine structures

Harland W. Mossman · Placenta · 1991 · 498 citations

Developmental Biology, Medicine, Uterine Receptivity +9

Endorphin-Mediated Increases in Pain Threshold During Pregnancy

Alan R. Gintzler · Science · 1980 · 342 citations

Pain Medicine, Gynecology, Molecular Pain +17

Reversal of Morphine Disruption of Maternal Behavior by Concurrent Treatment with the Opiate Antagonist Naloxone

Robert S. Bridges, Cordelia T. Grimm · Science · 1982 · 173 citations

Opioid Epidemic, Gynecology, Morphine-injected Rats +23

Neural and endocrine sensitivities to opioids decline as a function of multiparity in the rat

Phyllis E. Mann, Robert S. Bridges · Brain Research · 1992 · 91 citations

Pain Medicine, Neuroendocrine Mechanism, Opioids Decline +16

Placenta ingestion enhances opiate analgesia in rats

Mark B. Kristal, Austen L. Thompson, Holly L. Grishkat · Physiology & Behavior · 1985 · 51 citations

Health Sciences, Pain Medicine, Placenta Ingestion Enhances +8