...Shabbir Ahmed; Ariful Hasan; Yonggyun Kim ABSTRACT Prostaglandins (PGs) mediate various physiological functions in insects. Specifically, PGE 2 is known to mediate immunity and egg-laying behavior in the beet armyworm, Spodoptera exigua . A PGE 2 synthase 2 (Se-PGES2) has been identified...

... and acrosome reaction, using the PPARγ-agonist 15-deoxy-12,14-prostaglandin J2 (PGJ2). In responses to PGJ2 treatment, motility, cholesterol efflux and tyrosine phosphorylation were increased, which broadens the role of PPARγ from that previously described in the literature, as it also acts to improve sperm...

... prostaglandins that regulate hormone secretion, inhibit ion transport, and support cell survival during salt loading and dehydration. In teleosts, the gills are in direct contact with an aquatic environment and are the dominant site of osmoregulation. During transfers between salinities, specialized cells...

...Andrew F. Rowley; Claire L. Vogan; Graham W. Taylor; Anthony S. Clare SUMMARY Prostaglandins (PG) are oxygenated derivatives of C20 polyunsaturated fatty acids including arachidonic and eicosapentaenoic acids. In mammals, these compounds have been shown to play key roles in haemostasis, sleep-wake...

..., indomethacin (10 –5 mol l –1 ) did not affect the nicotine-mediated dilation,suggesting that prostaglandins are not involved in the response. Finally, the calcium ionophore A23187 (3×10 –6 mol l –1 ) caused an endothelium-dependent dilation that was abolished in the presence of indomethacin. We propose...