Locust corpora cardiaca contain an inactive adipokinetic hormone
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چکیده
منابع مشابه
Postembryonic proliferation of neuroendocrine cells expressing adipokinetic hormone peptides in the corpora cardiaca of the locust.
Neuroendocrine glands that synthesize and secrete peptide hormones regulate the levels of these peptide messengers during development. In this article we describe a mechanism for regulating neuropeptide levels in the corpora cardiaca of the locust Schistocerca gregaria, a neuroendocrine gland structurally analogous to the vertebrate adenohypophysis. A set of five colocalized peptide hormones of...
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Two novel members of the adipokinetic hormone/red pigment-concentrating hormone family of peptides were identified in dung beetles of the genus Onitis using heterologous (measuring lipid and carbohydrate mobilization in locusts and cockroaches) and a homologous (measuring proline increase in the haemolymph) bioassay(s). Isolation of the peptides was achieved by single-step reverse-phase HPLC of...
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1. The adipokinetic hormone release, which can be induced by anticholinesterases, is reduced by depleting the content of monoamines in the nervous system. 2. The participation of monoamines in the pathway of release of adipokinetic hormone is studied in vivo and in vitro. 3. A possible mechanism for anticholinesterase-induced release of this hormone involving cholinergic and aminergic transmiss...
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Two cardioacceleratory peptides from the corpora cardiaca of Periplaneta americana have been purified by gel filtration and reversed-phase liquid chromatography, Based on analysis of the intact factors and their chymotryptic fragments, we have assigned the primary structure of these octapeptides as pGlu-Val-Asn-Phe-Ser-Pro-Asn-Trp-NH2, designated periplanetin CC-1, and pGlu-Leu-Thr-Phe-Thr-Pro-...
متن کاملAdipokinetic hormone-induced lipolysis in the fat
The pathway for the adipokinetic hormone-stiniulated synthesis of sn-1,2-diacylglyceroIs in the adult Manducu sexta fat body was studied. Adult fat body lipids were labeled by feeding 5th instar larvae either with [9,10(n)-3H]oleic acid or [ 1 (3)-3H]glycerol and after 32 days insects at the adult stage were used. This long-term prelabeling led to labeled fat body acylglycerols in which triacyl...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1999
ISSN: 0014-5793
DOI: 10.1016/s0014-5793(99)00299-9