... antagonist, attenuated the inhibition induced by octopamine on the oviducts and the bursa. Octopamine also increased the levels of cAMP in the oviducts, and this effect was blocked by phentolamine. Dibutyryl cyclic AMP mimicked the effects of octopamine by reducing the frequency of bursal contractions...

.... , Day J. P. , Baillie G. S. ( 2012 ). Cyclic AMP-specific phosphodiesterase, PDE8A1, is activated by protein kinase A-mediated phosphorylation . FEBS Lett. 586 , 1631 - 1637 . Brown K. M. , Day J. P. , Huston E. , Zimmermann B. , Hampel K. , Christian F...

... ; chu@zju.edu.cn ) 1 12 2011 4 4 2012 © 2012. 2012 biogenic amine cyclic AMP antagonist locomotion insecticide The biogenic amine octopamine carries out many of the functional roles in insects and other invertebrates, as an invertebrate counterpart of adrenergic...

... A. ( 2005 ). A family of octopamine receptors that specifically induce cyclic AMP production of Ca 2+ release in Drosophila melanogaster . J. Neurochem. 93 , 440 - 451 . Bell R. A. , Joachim F. A. ( 1976 ). Techniques for rearing laboratory colonies of tobacco hornworms and pink...

...Tomás Gómez; Virtudes Medina; Cristina M. Ramírez; Rosa Dópido; Antonio Lorenzo; Mario Díaz SUMMARY The regulation of neutral amino acid transport by cyclic AMP (cAMP) and calcium across the isolated duodenum of the lizard Gallotia galloti has been studied under short-circuit conditions...

... The Company of Biologists Limited 2003 2003 cardiac stomach tube feet apical muscle cyclic GMP cyclic AMP soluble guanylyl cyclase adenylyl cyclase Asterias rubens starfish SALMFamide The gaseous signalling molecule nitric oxide (NO; Moncada et al., 1991 ) and the SALMFamide...

... maintained part of the elevated V te induced by hyposmotic saline, suggesting that an increased cellular cyclic AMP level is involved in the response to reduced osmolarity. In summary, the results indicate that the hemolymph osmolarity regulates active transbranchial NaCl absorption by modulating...

... was mediated by cyclic AMP in principal cells only: there was no effect on the levels of either cyclic GMP or intracellular calcium. Stimulation also elevated levels of cyclic AMP (but not cyclic GMP) phosphodiesterase, a new mode of action for this class of hormone. The transcript was localised by in situ...

... of SW crabs. * Author for correspondence (e-mail: h.taylor@zool.canterbury.ac.nz ) 11 7 2002 © The Company of Biologists Limited 2002 2002 Gecarcoidea natalis land crab osmoregulation chloride reabsorption excretion dopamine cyclic AMP gill Although crabs...

...-giessen.de ) 29 5 2002 © The Company of Biologists Limited 2002 2002 leech Hirudo medicinalis Na + transport invertebrate amiloride cyclic AMP ATP adenosine UTP Fresh water represents a hypo-osmotic environment to the leech, in which it has to cope with the loss of salts...

... that the CaSR stimulates Ca 2+ -mediated constriction of the rectal gland artery and diminishes cyclic AMP-mediated salt secretion in rectal gland tubules during non-feeding conditions. When the shark ingests sea water and fish, an increase in blood and interstitial fluid ionic strength inhibits the activity...

... respectively. However, no synergistic or additive effect was observed when these two peptides were tested simultaneously. We then investigated antagonism between second messengers: dose–response curves were constructed for stimulation of Tenebrio molitor tubules by cyclic AMP and their inhibition by cyclic GMP...

... (CSCCs) control and trigger nematocyst discharge. Previous findings have implicated cyclic AMP (cAMP) as a second messenger in NANA-sensitized nematocyst discharge. However, no reports have directly demonstrated that the cAMP content of tentacles changes in response to NANA stimulation. We now show...

... it was associated with hyperpolarisation of the apical membrane potential and acidification of secreted urine by 0.25 pH units. Exogenous 8-bromo-cyclic AMP and cyclic GMP increased tubule secretion to the same extent as Drome-DH 31 and, when tested together with the diuretic peptide, their activities were...

...Helga Milde; Wolf-Michael Weber; Michel Salzet; Wolfgang Clauss ABSTRACT An increase in intracellular cyclic AMP concentration stimulates transepithelial Na + transport across the skin of the leech Hirudo medicinalis , but it is unclear how cytosolic cyclic AMP levels are elevated in vivo...

... ; Hill, 1993 ). SALMFamide neuropeptide nitric oxide cyclic GMP cyclic AMP soluble guanylyl cyclase adenylyl cyclase SQ 22,536 receptor starfish cardiac stomach Asterias rubens mutable connective tissue catch ...

.... A selective and potent inhibitor of protein kinase A, H-89, also inhibits antidiuretic-factor-stimulated fluid reabsorption. Addition of the factor to cryptonephric complexes maintained in vitro caused a significant increase in cyclic AMP levels extracted from these tissues compared with values for controls...

.... , Triana , F. , Abate , T. and Rangel-Aidao , R. ( 1990 ). Cyclic AMP in the Malpighian tubule fluid and in the urine of Rhodnius prolixus . Gen. Comp. Endocr. 77 , 136 – 142 . 10.1016/0016-6480(90)90214-7 Mustonen , P. , Lehtonen , J. Y. and Kinnunen , P. K...

... monophosphate (a membrane-permeable analogue of cyclic AMP) to the bath caused an increase in conductance without affecting the reversal potential. We applied the cell-attached and the inside-out configurations of the patch-clamp technique ( Hamill et al., 1981 ) to isolated cells, which were then plated...

... for correspondence (e-mail: KWB1@Cornell.edu) 10 3 1998 12 5 1998 © The Company of Biologists Limited 1998 epithelial transport CRF-like diuretic peptide secretory diuresis cyclic AMP Ca 2+ short-circuit current corticotropinreleasing factor In a recent study of Malpighian...