Literature DB >> 10968983

Switching from simple to complex oscillations in calcium signaling.

U Kummer1, L F Olsen, C J Dixon, A K Green, E Bornberg-Bauer, G Baier.   

Abstract

We present a new model for calcium oscillations based on experiments in hepatocytes. The model considers feedback inhibition on the initial agonist receptor complex by calcium and activated phospholipase C, as well as receptor type-dependent self-enhanced behavior of the activated G(alpha) subunit. It is able to show simple periodic oscillations and periodic bursting, and it is the first model to display chaotic bursting in response to agonist stimulations. Moreover, our model offers a possible explanation for the differences in dynamic behavior observed in response to different agonists in hepatocytes.

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Year:  2000        PMID： 10968983      PMCID： PMC1301015          DOI： 10.1016/S0006-3495(00)76373-9

Source DB:  PubMed          Journal:  Biophys J        ISSN： 0006-3495            Impact factor:   4.033


  45 in total

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Journal:  Nature       Date:  1998-04-30       Impact factor: 49.962

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6.  Effect of Ca2+ agonists in the perfused liver: determination via laser scanning confocal microscopy.

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Journal:  Nature       Date:  1989-05-25       Impact factor: 49.962

Review 9.  Temporal and spatial heterogeneities of Ca2+ signaling: mechanisms and physiological roles.

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10.  Cytosolic free Ca2+ oscillations induced by diadenosine 5',5"'-P1,P3-triphosphate and diadenosine 5',5"'-P1,P4-tetraphosphate in single rat hepatocytes are indistinguishable from those induced by ADP and ATP respectively.

Authors:  A K Green; P H Cobbold; C J Dixon
Journal:  Biochem J       Date:  1995-09-01       Impact factor: 3.857
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  40 in total

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6.  Differential and chaotic calcium signatures in the symbiosis signaling pathway of legumes.

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8.  Cross-talk between signaling pathways can generate robust oscillations in calcium and cAMP.

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9.  Jensen's inequality as a tool for explaining the effect of oscillations on the average cytosolic calcium concentration.

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Journal:  Theory Biosci       Date:  2010-02-16       Impact factor: 1.919

10.  DOTcvpSB, a software toolbox for dynamic optimization in systems biology.

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