In vivo and in vitro investigations into the biosynthetic relatedness of the pseudopterosins.

[formula: see text] Both in vivo and in vitro techniques have been developed to test putative intermediates in the biosynthetic pathway to the pseudopterosins, antiinflammatory compounds isolated from Pseudopterogorgia elisabethae. Furthermore, specific activity data we have obtained indicate that pseudopterosin A is a precursor to pseudopterosins B, C, and D. We conclude that in the biosynthesis xylose is attached to the diterpene skeleton to produce pseudopterosin A and is then aceylated to form pseudopterosins B-D.

Prenatal ultrasonographic diagnosis and successful management of mediastinal teratoma. A case report.

A case of mediastinal teratoma, diagnosed in utero by realtime ultrasonography during a late 3rd trimester evaluation of polyhydramnios, is described. Prompt respiratory assistance to the infant at birth and early surgical intervention led to a successful outcome.