Stress-induced changes in the nitric oxide system of shore crabs living under different ecological conditions

Kotsyuba, E. P.; Dyuizen, I. V.; Lamash, N. E.

doi:10.1134/s1063074010030065

Cited by 9 publications

(13 citation statements)

References 33 publications

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“…The autotomy in crustaceans seems to be dose dependent (I.V.D., E.P.K. and N.E.L., unpublished observation) and environment dependent (Kotsyuba et al, 2010), and results obtained previously are consistent with pain mediation of the autotomy response (see Elwood, 2011). …”

Section: Discussionsupporting

confidence: 75%

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Changes in the nitric oxide system in the shore crab Hemigrapsus sanguineus (Crustacea, decapoda) CNS induced by a nociceptive stimulus

Dyuizen

Kotsyuba

Lamash

2012

Journal of Experimental Biology

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Section: Discussionsupporting

confidence: 75%

“…In the brain, the product of the histochemical reaction was localized mainly in the olfactory deutocerebrum, which corresponds to the data reported previously (Kotsyuba et al, 2010). The thoracic ganglion revealed low NADPH-d reactivity in neuropils and absence of activity in neurons.…”

Section: Nadph-d/nos Activitysupporting

confidence: 73%

Changes in the nitric oxide system in the shore crab Hemigrapsus sanguineus (Crustacea, decapoda) CNS induced by a nociceptive stimulus

Dyuizen

Kotsyuba

Lamash

2012

Journal of Experimental Biology

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“…The presence of NO ergic neurons in groups 9, 11, and 6 in the brain of E. japonica can be used as an indicator of interspecies differences in nNOS dis tribution. In E. japonica, as in Hemigrapsus san guineus, NADPH d positive cells were revealed in group 9 [2]. We identified NO positive cells in E. japonica in the content of group 6 neurons that were not found in other crustacean species.…”

Section: Discussionmentioning

confidence: 71%

“…In all the brain parts of Eriocheir japonica the distribution of NADPH d overlaps the immunolocalization of nNOS. As in the model species of different lobsters and crabs studied earlier [2,5,15,16,24,25], NO activity was revealed in the neuropils of the olfactory lobes, as well as in antennal and lateral antennular neuropils; this localization coincides with the projection zones of peripheral chemoreceptor cells of the antennules. According to the data in many pub lications, nitric oxide has an important modulatory role during the transmission and processing of chemoreceptor information in the central and periph eral chemosensory structures in representatives of dif ferent invertebrate groups, including crustaceans [15,16,20].…”

Section: Discussionmentioning

confidence: 91%

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The topography of the NO- and H2S-systems in the brain of the mitten crab Eriocheir japonica (De Haan, 1835) (Decapoda: Varunidae)

Kotsyuba

2012

Russ J Mar Biol

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235Among a number of signal systems of the central nerve system (CNS) that are involved in adaptive pro cesses of organisms, an important role is played by endogenous gaseous mediators, viz., nitric oxide (NO) and hydrogen sulfide (H 2 S). The effects of these medi ators are directed to the preservation of intracellular homeostasis and control of the most important physi ological processes, both in the norm and in pathologi cal conditions [13,34]. Nitric oxide, which is synthe sized by the enzyme NO synthase, is better studied. It has been shown that NOS is found in cells of verte brate and invertebrate animals colocalized with the flavin coenzyme NADPH diaphorase (NADPH d); their activity varies in accordance with variations in the amount of nitric oxide that is produced [9]. In accord with the contemporary concept, NO is a uni versal regulator of metabolism [19] and a marker of stress reactions [28]; this makes it possible to use NO as an indicator of the intensity of nonspecific responses to destabilizing influences. Participation of NO in stress and adaptive reactions has been revealed in different taxonomic groups of animals, including invertebrates. It was shown in experimental studies, which have been conducted mostly on model inverte brate species, that an increase in the NO activity in the CNS and hemolymph upon the impact of thermal stress [11], contamination with pesticides [7], and chronic anthropogenous pollution [12,31] can exert a neuroprotective effect.Evidence has been recently published on the par ticipation of hydrogen sulfide in homeostasis regula tion and its neuroprotective role during some patho logical states: oxidative stress [17] and brain hypoxy [30] in mammals. The mechanisms that exert the pro tective effects of H 2 S are poorly studied; however, the obtained evidence allows us to discuss the interaction of NO and H 2 S systems. It is known that an increase of the H 2 S level suppresses the activity of NO synthase and the generation of nitric oxide [21,35]. In the ner vous system of some invertebrates, endogenous syn thesis of H 2 S has been established [32], but the topog raphy of H 2 S positive cells in the CNS has been inves tigated only in the shore crab Hemigrapsus sanguineus (see: Kotsyuba,[1]). This evidence is insufficient to develop an idea of the organization features and on the capacities of the adaptation of the H 2 S system to changing environmental conditions. Meanwhile, we can expect that NO and H 2 S ergic regulatory mech anisms are most effective in the CNS of invertebrate animals, including higher crustaceans, that are capa ble of a wide range of adaptations to different environ mental factors. One of these is the pervasive Japanese mitten crab Eriocheir japonica, which inhabits sea, brackish, and fresh waters and is capable of surviving long periods in anoxic conditions. The present work was aimed at a comparative study of NO and H 2 S synthesizing structures in the brain of the crab E. japonica, in fresh and sea waters.Abstract-The distributions and activities of n...

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Local olfactory interneurons provide the basis for neurochemical regionalization of olfactory glomeruli in crustaceans

Harzsch

Dircksen

Hansson

2021

J of Comparative Neurology

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The primary olfactory centers of metazoans as diverse as arthropods and mammals consist of an array of fields of dense synaptic neuropil, the olfactory glomeruli. However, the neurochemical structure of crustacean olfactory glomeruli is largely understudied when compared to the insects. We analyzed the glomerular architecture in selected species of hermit crabs using immunohistochemistry against presynaptic proteins, the neuropeptides orcokinin, RFamide and allatostatin, and the biogenic amine serotonin. Our study reveals an unexpected level of structural complexity, unmatched by what is found in the insect olfactory glomeruli. Peptidergic and aminergic interneurons provide the structural basis for a regionalization of the crustacean glomeruli into longitudinal and concentric compartments. Our data suggest that local olfactory interneurons take a central computational role in modulating the information transfer from olfactory sensory neurons to projection neurons within the glomeruli. Furthermore, we found yet unknown neuronal elements mediating lateral inhibitory interactions across the glomerular array that may play a central role in modulating the transfer of sensory input to the output neurons through presynaptic inhibition. Our study is another step in understanding the function of crustacean olfactory glomeruli as highly complex units of local olfactory processing.

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Stress-induced changes in the nitric oxide system of shore crabs living under different ecological conditions

Cited by 9 publications

References 33 publications

Changes in the nitric oxide system in the shore crab Hemigrapsus sanguineus (Crustacea, decapoda) CNS induced by a nociceptive stimulus

Changes in the nitric oxide system in the shore crab Hemigrapsus sanguineus (Crustacea, decapoda) CNS induced by a nociceptive stimulus

The topography of the NO- and H2S-systems in the brain of the mitten crab Eriocheir japonica (De Haan, 1835) (Decapoda: Varunidae)

Local olfactory interneurons provide the basis for neurochemical regionalization of olfactory glomeruli in crustaceans

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