A5005891900- Neurobiology and Insect Physiology Research
- Nitric Oxide and Endothelin Effects
- Aquatic Invertebrate Ecology and Behavior
- Physiological and biochemical adaptations
- Neuroscience and Neuropharmacology Research
- Mollusks and Parasites Studies
- Marine Bivalve and Aquaculture Studies
- Ion channel regulation and function
- Animal Ecology and Behavior Studies
- Neuropeptides and Animal Physiology
- Aquaculture Nutrition and Growth
- Fish Ecology and Management Studies
- Biocrusts and Microbial Ecology
- Inflammatory Bowel Disease
- Neuroendocrine regulation and behavior
- Aquatic Ecosystems and Phytoplankton Dynamics
- Plant responses to water stress
- Calpain Protease Function and Regulation
- Meat and Animal Product Quality
- Glycosylation and Glycoproteins Research
- Environmental Toxicology and Ecotoxicology
- Neuroscience of respiration and sleep
- Electron Spin Resonance Studies
- Abdominal Surgery and Complications
- Ion Transport and Channel Regulation
Balaton Limnological Institute
2011-2024
Hungarian Research Network
2021-2023
Centre for Ecological Research
2012-2019
Hungarian Academy of Sciences
2007-2019
University of Debrecen
1997-2004
University of Sussex
2003
Abstract The phosphorylation and the binding to DNA of nuclear transcription factor, cyclic adenosine 3′,5′‐monophosphate (cAMP) response element‐binding protein (CREB) are conserved key steps in molecular cascade leading formation long‐term memory (LTM). Here, we characterize, for first time, a CREB1‐like central nervous system (CNS) Lymnaea , model used widely study fundamental mechanisms learning memory. We demonstrate cAMP element (CRE)‐binding activity CNS extracts show that one...
Abstract Objective The role of nitric oxide (NO) in the pathophysiology inflammatory bowel disease (IBD) is controversial. aim this study was to investigate expression and localization synthase isoforms (iNOS, eNOS) IBD colonic mucosa. Material methods Forty-four patients with (24 ulcerative colitis (UC), 20 Crohn's (CD) 16 controls) were investigated by colonoscopy. iNOS eNOS tissue sections demonstrated histochemistry (NADPH-diaphorase reaction) immunohistochemistry. Cell type analysis...
Abstract The impacts of species invasions can subside over time as ecosystems ‘adapt’ and invaders decline or increase additional invade. character timescales invasion provide important insights into ecosystem dynamics management. Yet long-term studies remain rare often confound invasive with coincident environmental change. One way to address this challenge is ask: what ecological changes since are recapitulated in that span a range conditions, located different regions, were invaded...
Byssate bivalves are ecosystem engineers with world-wide impact on aquatic communities through habitat forming and biofouling of hard-shelled organisms. In fresh waters, they represented by invasive Ponto-Caspian dreissenid mussels spreading throughout Europe North America. They negatively affect globally threatened unionid fouling, which deteriorates their condition survival. The appearance quagga (D. rostriformis bugensis, QM) in areas occupied zebra (Dreissena polymorpha, ZM) usually has...
Abstract Myosin phosphatase (PP1M) is composed of the δ isoform PP1 catalytic subunit (PP1cδ), myosin target (MYPT), and a 20 kDa subunit. Western blots detected higher amounts MYPT1 compared to MYPT2 in whole brain extracts. The localization was studied rat primary cell cultures neurons using specific antibodies. Analysis lysates regions for PP1M by anti‐MYPT1 antibodies assays with as substrate suggested ubiquitous distribution. Immunohistochemistry tissue sections revealed that...
The anatomical and functional relationship between neurons expressing nitric oxide (NO) synthase molluscan cardioexcitatory (FMRFamide)-like neuropeptides was studied in the central ganglia of <i>Helix lucorum</i> (Pulmonata, Gastropoda), applying NADPHdiaphorase (NADPHd) histochemistry to visualize NO immunocytochemistry demonstrate FMRFamide (FMRFa) at light microscopic level. production detected by colorimetric Griess determination nitrite, a breakdown product NO. Effects...
The aim of this study is to investigate the effect sera obtained from patients Crohn's disease treated by anti-TNF-α antibody (infliximab) on expression endothelial nitric oxide synthase (eNOS) and vascular growth factor receptor-2 (VEGFR2) protein in human umbilical vein cells (HUVEC) cultured vitro. HUVEC was presence derived before after treatment, or healthy individuals. Effects eNOS VEGFR2 were monitored determination mRNA levels using real time quantitative PCR Western blot analysis,...
Abstract Protein phosphatase‐1M (PP1M, myosin phosphatase) consists of a PP1 catalytic subunit (PP1c) and the phosphatase target subunit‐1 (MYPT1). RhoA‐activated kinase (ROK) regulates PP1M via inhibitory phosphorylation MYPT1. Using multidisciplinary approaches, we have studied roles ROK in neurotransmission. Electron microscopy demonstrated presence MYPT1 both pre‐ post‐synaptic terminals. Tautomycetin (TMC), PP1‐specific inhibitor, decreased depolarization‐induced exocytosis from...
Abstract Dreissena rostriformis bugensis (quagga mussel, QM) has spread into areas occupied by an earlier invader, polymorpha (zebra ZM) in Europe and North America. Usually QM displaces ZM within a few years or both species coexist, although the mechanisms driving these outcomes have not been uncovered clearly. In Lake Balaton (central‐eastern Europe), displaced oligotrophic (food‐limited) basin, whereas they coexist eutrophic (food‐rich) basin. Searching for drivers of interactions...
Abstract By using NADPH‐diaphorase (NADPH‐d) histochemistry, nitric oxide synthase (NOS) immunohistochemistry, Western blotting, and NO pharmacology, we investigated the distribution possible function of NOS‐containing neurons in different units alimentary tract snail, Helix pomatia . Discrete populations buccal ganglia displayed NADPH‐d reactivity. NADPH‐d‐reactive NOS‐immunoreactive (NOS‐IR) were present caecum, labeled fibers found to innervate circular muscles proesophagus caecum form...
Abstract Selective predation may affect interspecific competition between coexisting prey species. Ponto‐Caspian zebra ( Dreissena polymorpha ) and quagga mussels rostriformis bugensis have become common components of benthic communities in invaded ecosystems Europe North America, where they are exposed to by molluscivorous fish. In a pairwise food selection experiment, we examined whether an efficient predator dreissenids, the carp Cyprinus carpio ), selects two mussel species and, if so,...