Studies on insect adipokinetic hormones

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Abstract

An adipokinetic factor is present in the corpora cardiaca of Schistocerca gregaria, Locusta migratoria, Periplaneta americana, and Tenebrio molitor. A large in vivo adipokinetic response can be demonstrated in the locusts and the mealworm, but not in the cockroaches Periplaneta americana and Gromphadorhina portentosa. Dose response curves have been obtained for whole corpora cardiaca and separated glandular and storage lobes. Glandular lobe extracts in Locusta migratoria are approximately 50 times more potent in elevating blood lipids than storage lobe extracts.

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