Literature DB >> 21573754

The neuropeptide Gonadotropin-releasing hormone modifies the spontaneous muscular contraction in the earthworm: Eisenia foetida.

J Luis Quintanar1, Karina Gutiérrez-García, Luis Castillo-Hernández.   

Abstract

We investigated whether the Gonadotropin-releasing hormone affects the spontaneous muscular contraction in the earthworm Eisenia foetida. In addition, we investigated the presence of Gonadotropin-releasing hormone receptor in ventral nerve cord by immunohistochemistry and polymerase chain reaction. Gonadotropin-releasing hormone induced a significant increase on both amplitude and muscular tone and decrease in the frequency of spontaneous muscular contraction. We found the presence of immunoreactive material to Gonadotropin-releasing hormone receptor in the ventral nerve cord, likewise the Gonadotropin-releasing hormone receptor mRNA expression. In conclusion, the Gonadotropin-releasing hormone modifies the spontaneous muscular contraction in E. foetida and these effects can be due to the activation of the Gonadotropin-releasing hormone receptor.

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Year:  2011        PMID： 21573754     DOI： 10.1007/s10158-011-0120-7

Source DB:  PubMed          Journal:  Invert Neurosci        ISSN： 1354-2516


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