نتایج جستجو برای: helix aspersa

تعداد نتایج: 25649  

Journal: :Zoological science 2014
Teruaki Nishikawa Ichiro Oohara Kenji Saitoh Yuya Shigenobu Natsuki Hasegawa Makoto Kanamori Katsuhisa Baba Xavier Turon John D D Bishop

The solitary ascidian Ascidiella aspersa (Müller, 1776) has sometimes been regarded as conspecific with A. scabra (Müller, 1776), although previous detailed morphological comparisons have indicated that the two are distinguishable by internal structures. Resolution of this taxonomic issue is important because A. aspersa has been known as a notoriously invasive ascidian, doing much damage to aqu...

Journal: :The Journal of experimental biology 1987
H K Lehman M J Greenberg

Phe-Met-Arg-Phe-NH2 (FMRFamide) and pyroGlu-Asp-Pro-Phe-Leu-Arg-Phe-NH2 (pQDPFLRFamide) occur in the ganglia and tissues of the snail, Helix aspersa. This report describes the effects of these two neuropeptides on five visceral organs or somatic muscles isolated from the snail (Table 1). The epiphallus, as well as the rest of the male reproductive tract, was contracted by both FMRFamide and pQD...

Mahyar Janahmadi, Mohammad Hassan Nazaran, Saeedeh Fakharzadeh, Zahra Ghasemi,

Introduction: Oxidative stress is one of the important pathologic factors involved in the pathogenesis of neurodegenerative diseases. Antioxidants as neutralizing agents of free radicals are one of the treatment options for these diseases and antioxidant agents that can pass through blood brain barrier have beneficial effects. In the present research, the antioxidant effect of a new iron ...

2011
Pavel M. Balaban Aleksey Y. Malyshev Victor N. Ierusalimsky Nikolay Aseyev Tania A. Korshunova Natasha I. Bravarenko M. S. Lemak Matvey Roshchin Igor S. Zakharov Yekaterina Popova Richard Boyle

BACKGROUND The mollusk statocyst is a mechanosensing organ detecting the animal's orientation with respect to gravity. This system has clear similarities to its vertebrate counterparts: a weight-lending mass, an epithelial layer containing small supporting cells and the large sensory hair cells, and an output eliciting compensatory body reflexes to perturbations. METHODOLOGY/PRINCIPAL FINDING...

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