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Reexplore The Anatomy Of The Lateral Arm And Role In Vascularized Bone

In this anatomical study, the lateral arm flap is used for composite defects in need of vascularized soft tissue, skin, and bone. From its original description, the distal humeral metaphysis can be included with the flap, supplied by the periosteal extensions of the posterior branch of the radial collateral artery.  Researchers wanted to reexplore the anatomy of the lateral arm to determine its utility as a donor site for vascularized bone.

Plenty of Metabolites produced by Antibiotic-Producing Bacterium

The bacterium Streptomyces chartreusis is an antibiotic-producing bacterium that releases more metabolites into the surrounding medium than scientists assumed based on the analysis of the genome. Many of the substances are likely released to mediate interactions with its environment. They might also include molecules that are of interest as potential pharmaceutical agents.

The researchers analyzed a broad spectrum of the bacterium's metabolic products under various culture conditions. The study is published in the journal Proceedings of the National Academy of Sciences.