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Pramipexole, a dopamine D3/D2 receptor-preferring agonist, attenuates reserpine-induced fibromyalgia-like model in mice

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Neural Regeneration Research 2022年第2期17卷 450-458页

作者： Carlos Pereira Martins rodrigo sebben paes Gabriela Mantovani Baldasso Eduarda Gomes Ferrarini Rahisa Scussel Rubya Pereira Zaccaron Ricardo Andrez Machado-de-Avila Paulo Cesar Lock Silveira Rafael Cypriano Dutra Laboratory of Autoimmunity and Immunopharmacology Department of Health SciencesCampus AraranguaUniversidade Federal de Santa CatarinaAraranguáSCBrazil Post-Graduate Program of Neuroscience Center of Biological SciencesUniversidade Federal de Santa CatarinaFlorianópolisSCBrazil Laboratory of Experimental Physiopathology Program of Postgraduate in Science of HealthUniversidade do Extremo Sul CatarinenseCriciumaSCBrazil

Fibromyalgia(FM) is a complex pathology described as persistent hyperalgesia including somatic and mood dysfunctions, depression and anxiety. Although the etiology of FM is still unknown, a significant decrease in biogenic amines is a common characteristic in its pathogenesis. Here, our main objective was to investigate the role of dopamine D3/D2 receptor during the reserpine-induced pain in mice. Our results showed that pramipexole(PPX) – a dopaminergic D3/D2 receptor agonist – inhibited mechanical allodynia and thermal sensitivity induced by reserpine. Relevantly, PPX treatment decreased immobility time and increased the number of grooming in the forced swimming test and splash test, respectively. Animals that received PPX remained longer in the open arms than the reserpine group using elevated plusmaze apparatus. The repeated PPX administration, given daily for 4 days, significantly blocked the mechanical and thermal allodynia during FM model, similarly to pregabalin, although it failed to affect the reserpine-induced thermal nociception. Reserpine administration induced significant downregulation of dopamine concentration in the central nervous system, and repeated treatment with PPX restored dopamine levels in the frontal cortex and spinal cord tissues. Moreover, PPX treatment inhibited oxidants production such as DCFH(2′,7′-dichlorodihydrofluorescein) and nitrite, also decreased oxidative damage(carbonyl), and upregulated the activity of superoxide dismutase in the spinal cord. Together, our findings demonstrated the ability of dopamine D3/D2 receptor-preferring agonist in reducing pain and mood dysfunction allied to FM in mice. All experimental protocols were approved by the Universidade Federal de Santa Catarina(UFSC) Ethics Committee(approval No. 2572210218) on May 10, 2018.

关键词： dopamine dopaminergic system fibromyalgia hyperalgesia pain pramipexole reserpine

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Misfolded amyloid-beta conformational variants(strains)as drivers of Alzheimer's disease neuropathology

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Neural Regeneration Research 2025年第11期20卷 3219-3220页

作者： Salvatore Saieva rodrigo Morales Department of Neurology The University of Texas Health Science Center at HoustonHoustonTXUSA Centro Integrativo de Biologia y Quimica Aplicada(CIBQA) Universidad Bernardo O’HigginsSantiagoChile

Pathological and clinical variability in Alzheimer's disease(AD):AD is clinically cha racterized by progressive memory loss and cognitive *** a pathological point of view,the main features of AD are the deposition of amyloid plaques(composed of amyloid-beta,Aβ)and neurofibrillary tangles containing hyperphosphorylated Tau in the brain,accompanied by neu ronal and synaptic loss,neuroinflammation and brain atrophy(Jellinger,2022).Regardless of these common traits,growing evidence shows increased heterogen eity in the brain of AD patients considering both clinical manifestations and pathological features.

关键词： amyloid Alzheimer clinical

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Role of peripheral amyloid-β aggregates in Alzheimer’s disease: mechanistic, diagnostic, and therapeutic implications

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Neural Regeneration Research 2025年第4期20卷 1087-1089页

作者： Nazaret Gamez rodrigo Morales Department of Neurology The University of Texas Health Science Center at HoustonHoustonTXUSA Centro Integrativo de Biologia y Quimica Aplicada(CIBQA) Universidad Bernardo O’HigginsSantiagoChile

Compelling evidence demonstrates that the levels of peripheral amyloid-β(Aβ)fluctuate in Alzheimer’s disease(AD)***,Aβdeposits have been identified in peripheral ***,the relevance of peripheral Aβ(misfolded or not)in pathological situations,and the temporal appearance of these pathological fluctuations,are not well *** presence of misfolded Aβin peripheral compartments raises concerns on potential inter-individual transmissions considering the well-reported prion-like properties of this disease-associated *** latter is supported by multiple reports demonstrating that Aβmisfolding can be transmitted between humans and experimental animals through multiple routes of *** this mini-review,we discuss the potential implications of peripheral,disease-associated Aβin disease mechanisms,as well as in diagnostic and therapeutic approaches.

关键词： therapeutic amyloid latter

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Materials as activator of future global science and technology challenges

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Progress in Natural Science:Materials International 2021年第6期31卷 785-791页

作者： rodrigo Martins Full Professor at FCT-NOVA President of the International Union of Materials Research Societies President of the European Academy of Sciences

The aim of this statement is to give a contribution towards the future, where for all, materials are the driven force for the transformations we aim to reach and for which a global common house is imperative to be established, as the International Union of Materials Research Societies, IUMRS aims to be the central vehicle for such, aiming to boost innovation to its maxima, without compromising vital global principles of opening science to the *** is consolidated by 4 main principles: Circular Economy; Trans disciplinarity; Horizontal cross cutting synergy(the introduced Metro Station concept); look always to the Big Picture and not to silos. This means that the traditional vertical thematic topics that were essential to define so far, the so-called road maps for something should be revisited and reconverted towards much larger horizontal scenarios.

关键词： Materials science and engineering Green technologies and products Materials activator Materials accelerator of progress changes

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Cross-talk between T-cells and gut-microbiota in neurodegenerative disorders

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Neural Regeneration Research 2019年第12期14卷 2091-2092页

作者： rodrigo Pacheco Departamento de Ciencias Biológicas Facultad de Ciencias de la Vida Universidad Andres Bello Laboratorio de Neuroinmunología Fundación Ciencia & Vida

The emerging role of gut microbiota as a key player in the development of neurodegenerative disorders: Mammals have evolved together with commensal microbiota to establish a symbiotic relationship in which they regulate reciprocally by synthesizing and responding to several common chemical substances. In this regard, gut microbiota constitutes a consortium of bacteria that not only participates in the degradation of nutrients, but also produces metabolites, fatty acids and neurotransmitters that can act on the enzymes and receptors expressed in eukaryotic cells, which considerably affects the physiology of the host and contribute to maintaining homeostasis (Lyte, 2013).

关键词： Cross-talk T-cells neurodegenerative disorders

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Geostatistical seismic inversion and 3D modelling of metric flow units,porosity and permeability in Brazilian presalt reservoir

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Petroleum Science 2024年第3期21卷 1699-1718页

作者： rodrigo Penna Wagner Moreira Lupinacci Exploratory Interpretation and Reservoir Characterization Group(GIECAR) Department of Geology and GeophysicsUniversidade Federal FluminenseNiteroiRJ24210-346Brazil Petrobras Rio de JaneiroRJ20031-912Brazil

Flow units(FU)rock typing is a common technique for characterizing reservoir flow behavior,producing reliable porosity and permeability estimation even in complex geological ***,the lateral extrapolation of FU away from the well into the whole reservoir grid is commonly a difficult task and using the seismic data as constraints is rarely a subject of *** paper proposes a workflow to generate numerous possible 3D volumes of flow units,porosity and permeability below the seismic resolution limit,respecting the available seismic data at larger *** methodology is used in the Mero Field,a Brazilian presalt carbonate reservoir located in the Santos Basin,who presents a complex and heterogenic geological setting with different sedimentological processes and diagenetic *** generated metric flow units using the conventional core analysis and transposed to the well log ***,given a Markov chain Monte Carlo algorithm,the seismic data and the well log statistics,we simulated acoustic impedance,decametric flow units(DFU),metric flow units(MFU),porosity and permeability volumes in the metric *** aim is to estimate a minimum amount of MFU able to calculate realistic scenarios porosity and permeability scenarios,without losing the seismic lateral *** other words,every porosity and permeability volume simulated produces a synthetic seismic that match the real seismic of the area,even in the metric *** achieved 3D results represent a high-resolution fluid flow reservoir modelling considering the lateral control of the seismic during the process and can be directly incorporated in the dynamic characterization workflow.

关键词： Flowunits Geostatistical inversion Presalt reservoir 3D reservoir modelling Petrophysical modelling

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The status of research and utilisation on the subtidal kelp along the Chilean coast:A literature review

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Acta Oceanologica Sinica 2022年第12期41卷 7-17页

作者： Simona Laukaityte rodrigo Riera School of Natural Sciences Macquarie UniversitySydney 2109Australia Groningen Institute for Evolutionary Life-Sciences University of GroningenGroningen 9747 AGthe Netherlands Biodiversity and Conservation Group(BIOCON) Instituto Universitario de Investigación en Acuicultura Sostenible y Ecosistemas Marinos(IU-ECOAQUA)Universidad de Las Palmas de Gran CanariaGran Canaria 35001Spain Departamento de Ecología Facultad de CienciasUniversidad Católica de la Santísima ConcepciónConcepción 2850Chile

The most important marine coastal ecosystem in the Chilean coast are kelp *** review is based on ecological studies regarding different aspects of subtidal kelp ecosystems along the Chilean *** highlights the most interesting findings in(1)biology of subtidal kelp in Chile,with particular reference to(2)habitats formed by kelp,and considered the successful examples and promising results in the(3)kelp as an industrial resource(Biotechnological approach of kelps and aquaculture).The impact caused by(4)El Niño-Southern Oscillation is discussed as an important climatic event that could help to forecast the future of the kelp *** addition,this literature review outlines the knowledge gaps on subtidal kelp along the Southeast Pacific Coast of Chile,so that research can be strengthened in the future.

关键词： kelp macroalgae harvesting commercial kelp subtidal SE Pacific Ocean

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Soil resilience assessment using soil profile descriptions and Analytic Hierarchy Process in Mediterranean mountains considering diverse fire occurrences

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Journal of Mountain Science 2024年第8期21卷 2517-2532页

作者： Jesús rodrigo-COMINO Departamento de Análisis Geográfico Regional y Geografía Física Facultad de Filosofía y LetrasCampus Universitario de CartujaUniversidad de GranadaGranada 18071Spain

Wildfires are complex natural phenomena that exert significant impacts on landscapes,societies,and *** the concept of resilience is crucial in mitigating its possible negative impacts,as it involves preparing for,responding to,and recovering from *** research aims to demonstrate the utility of in situ soil profile description in assessing land use resilience using an Analytic Hierarchy Process(AHP)through an expert panel *** study examines a catchment located in the Balearic Islands,considering two fire occurrences(once and twice),comparing abandoned agricultural terraces and natural *** results demonstrated that the priority ranking of variables to assess soil profile resilience against wildfires,determined by a panel of 10 experts,identified horizon depth(25.1%),slope inclination(21.5%),and hydrological connectivity(16.6%)as the most crucial *** variables,such as number and size of roots,structure of pedal soil material,size class structure,and rock fragments,also contributed to resilience but to a lesser extent,with scores ranging from 5.7%to 9.6%.Analyzing the priorities established by the experts using AHP,the results showed that the least resilient soil horizon was H1 of the control hillslope,especially under high and low connectivity processes,which aligned with the loss of superficial soil horizons after one and two *** showed greater changes in resilience after occurring wildfires compared to terraces,with the most significant alterations occurring after the second wildfire *** study addresses a significant knowledge gap in the field by highlighting the interconnectedness of wildfires,resilience,and land use,providing insights into land management strategies for wildfire-prone regions.

关键词： Soil profiles Soil geography Wildfires AHP Land management Expert panel survey

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Celiac disease

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World Journal of Gastroenterology 2006年第41期12卷 6585-6593页

作者： Luis rodrigo Gastroenterology Service University Hospital Central AsturiasOviedoSpain

Celiac disease （CD） is a common autoimmune disorder, induced by the intake of gluten proteins present in wheat, barley and rye. Contrary to common belief, this disorder is a protean systemic disease, rather than merely a pure digestive alteration. CD is closely associated with genes that code HLA-Ⅱ antigens, mainly of DQ2 and DQ8 classes. Previously, it was considered to be a rare childhood disorder, but is actually considered a frequent condition, present at any age, which may have multiple complications. Tissue transglutaminase-2 （tTG）, appears to be an important component of this disease, both, in its pathogenesis and diagnosis. Active CD is characterized by intestinal and/or extra-intestinal symptoms, villous atrophy and crypt hyperplasia, and strongly positive tTG auto-antibodies. The duodenal biopsy is considered to be the ＂gold standard＂ for diagnosis, but its practice has significant limitations in its interpretation, especially in adults. Occasionally, it results in a false-negative because of patchy mucosal changes and the presence of mucosal villous atrophy is often more severe in the proximal jejunum, usually not reached by endoscopic biopsies. CD is associated with increased rates of several diseases, such as iron deficiency anemia, osteoporosis, dermatitis herpetiformis, several neurologic and endocrine diseases, persistent chronic hypertransami-nasemia of unknown origin, various types of cancer and other autoimmune disorders. Treatment of CD dictates a strict, life-long gluten-free diet, which results in remission for most individuals, although its effect on some associated extraintestinal manifestations remains to be established.

关键词： Celiac disease Tissue transglutaminase antibodies Autoimmune disorders Gluten-free diet

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Meningeal T-cells in the cross-talk between memory consolidation and sleep

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Neural Regeneration Research 2023年第12期18卷 2687-2688页

作者： rodrigo Pacheco Valentina Ugalde Laboratorio de Neuroinmunología Centro Científico y Tecnológico de Excelencia Ciencia&VidaFundación Ciencia&VidaSantiagoChile Facultad de Medicina y Ciencia Universidad San SebastiánSantiagoChile

Some years ago,the infiltration of T-cells into the central nervous system(CNS) was considered a pathological condition ***,during the last two decades,a growing body of studies has shown that T-cells are essential pl... 详细信息

关键词： behavior. sleep consolidation

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