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Atrial fibrillation in patients with systolic heart failure:pathophysiology mechanisms and management

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Journal of Geriatric Cardiology 2021年第5期18卷 376-397页

作者： Ioanna Koniari eleni Artopoulou Dimitrios Velissaris Nicholas Kounis Grigorios Tsigkas Manchester Heart Institute Manchester University Foundation TrustManchesterUnited Kingdom Department of Internal Medicine University Hospital of PatrasPatrasGreece Department of Cardiology University Hospital of PatrasPatrasGreece

Heart failure(HF)and atrial fibrillation(AF)demonstrate a constantly increasing prevalence during the 21st century worldwide,as a result of the aging population and the successful interventions of the clinical practice in the deterioration of adverse cardiovascular *** and AF share common risk factors and pathophysiological mechanisms,creating the base of a constant *** impairs systolic and diastolic function,resulting in the increasing incidence of HF,whereas the structural and neurohormonal changes in HF with preserved or reduced ejection fraction increase the possibility of the AF *** temporal relationship of the development of either condition affects the diagnostic algorithms,the prognosis and the ideal therapeutic strategy that leads to euvolaemia,management of noncardiovascular comorbidities,control of heart rate or restoration of sinus rate,ventricular synchronization,prevention of sudden death,stroke,embolism,or major bleeding and maintenance of a sustainable quality of *** indicated treatment for the concomitant HF and AF includes rate or/and rhythm control as well as thromboembolism prophylaxis,while the progress in the understanding of their pathophysiological interdependence and the introduction of the genetic profiling,create new paths in the diagnosis,the prognosis and the prevention of these diseases.

关键词： prevention diagnosis management

Time-dependent behaviour of the Callovo-Oxfordian claystone-concrete interface

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Journal of Rock Mechanics and Geotechnical Engineering 2020年第1期12卷 89-101页

作者： eleni Stavropoulou Matthieu Briffaut Frédéric Dufour Guillaume Camps Univ.Grenoble Alpes CNRSGrenoble INP3SRF-38000GrenobleFrance Agence Nationale pour la gestion des Déchets Radioactifs(Andra) Chatenay-MalabryFrance

In the context of the Cigeo project,the French National Radioactive Waste Management Agency(Andra)is studying the behaviour of a deep geological facility for radioactive waste deposit in the CallovoOxfordian(COx)*** assessment of durability of this project requires the prediction of irreversible strain over a large time *** mechanical interaction of the host rock and the concrete support of tunnels must be investigated to ensure the long-term sustainability of the *** instantaneous and time-dependent behaviour of the claystone-concrete interface is experimentally investigated with direct shear tests and long-duration shear tests of a few *** mechanical and structural state of the claystone which is affected after interaction with concrete reflects to the response of the claystone-concrete interface,and thus different types of COx claystone-concrete interfaces are *** delayed deformation of the interface is found to be linked to the level of the normal loading and the loading history while a different response of the interface was observed from the short-and long-duration tests,indicating a possible progressive modification of interface under long-duration loadings.

关键词： Callovo-Oxfordian(COx)claystone Interfaces Time-dependent behaviour

Neighborhood environment,physical activity,and quality of life in adults:Intermediary effects of personal and psychosocial factors

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Journal of Sport and Health Science 2017年第1期6卷 96-102页

作者： eleni Theodoropoulou Nektarios A.M.Stavrou Konstantinos Karteroliotis School of Physical Education and Sport Science National and Kapodistrian University of AthensAthens 17237Greece

background: Studies have indicated that there is a positive and indirect relationship between physical activity(PA) and quality of life(QoL). The current study examined this relationship through a social cognitive model with consideration to the intermediary effects of exercise self-efficacy,and physical(PCS, physical component summary) and psychological(MCS, mental component summary) health. Additionally, this model was widened to include concepts from the ecological theory, and any causal associations among neighborhood environment, PA, and ***: Six hundred and eighty-four physically active adults(39.16 ± 13.52 years, mean ± SD), living in Athens, Greece, completed a series of questionnaires measuring PA, QoL, exercise self-efficacy, PCS, MCS, neighborhood environment, and family and friend support for PA. The examined models were analyzed using structural equation ***: The social cognitive and ecological models proved to be of appropriate fit. Within the social cognitive model, PA positively affected QoL through the mediating effects of exercise self-efficacy, PCS, and MCS. With regards to the ecological model, neighborhood environment positively influenced QoL through the intermediary effects of family support for PA, exercise self-efficacy, PA, PCS, and ***: Results indicated that the most important mediators in the examined models were exercise self-efficacy and health. Further, findings demonstrated the role of neighborhood environment in enhancing PA and QoL. Future studies should be carried out applying longitudinal data for a better understanding of these associations over time.

关键词： Cognitive Ecological Health Self-efficacy Structural equation modeling

Estimation of quality of life in Cypriot patients with inflammatory bowel disease

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World Journal of Gastroenterology 2017年第1期23卷 121-126页

作者： Maria Tsoukka eleni Jelastopulu Giagkos Lavranos George Charalambous Postgraduate Program Health Management Frederick UniversityNicosiaCyprus University General Hospital of Larnaca Department of Public Health School of MedicineUniversity of Patras Department of Health Sciences School of SciencesEuropean University General Hospital of Athens“Hippocratio”

AIMTo investigate the health-related quality of life (HRQoL) of patients suffering with idiopathic inflammatory bowel disease (IBD).METHODSThe Greek validated version of the Short Inflammatory Bowel Disease Questionnaire was used for evaluating the quality of life of IBD patients. The questionnaire was distributed to 100 consecutive patients suffering from IBD and presenting for a clinic appointment at the endoscopy unit of Larnaca General Hospital during the period from October to November 2012. The criteria for participating in this study were constituted by the documented diagnosis of either ulcerative colitis (UC) or Crohn’s disease (CD) after endoscopy and histologic examination at least 6 months before the study, adult patients (18 years old or older), the capability of verbal communication and the patient’s written consent for attending this study. The majority of the questionnaires were completed by a nurse practitioner who specializes in IBD patient *** the physical dimension in patients with UC, males scored significantly higher than females (4.2 vs 3.4, P = 0.023). Higher scores were also observed in UC patients younger than 35 or older than 50 years (4.0 and 4.2 vs 3.2, respectively, P = 0.021). The psychological dimension revealed similar results in patients with UC, with males, and older ages scoring higher (5.0 vs 3.0, P = 0.01 and 4.7 vs 2.7, P rding CD higher scores were observed in married compared to unmarried (3.83 vs 2.33, P = 0.042). No statistical differences in any parameters in the social dimension were observed. Regarding the treatment of, patients with CD, overall higher scores were observed when treated with biological factors compared to standard therapy in all dimensions but with statistical significant difference in the social dimension (5.00 vs 3.25, P = 0.045).CONCLUSIONThe study reveals a negative impact of IBD on HRQoL. Increased risks are age and gender in

关键词： Crohn’ s disease Health related quality of life Quality of life Short inflammatory bowel disease questionnaire Ulcerative colitis

Effects of antidiabetic drugs on epicardial fat

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World Journal of Diabetes 2018年第9期9卷 141-148页

作者： eleni Xourgia Athanasia Papazafiropoulou Andreas Melidonis 1st Department of Internal Medicine and Diabetes Center Tzaneio General Hospital of Piraeus

Epicardial adipose tissue is defined as a deposit of adipocytes with pathophysiological properties similar to those of visceral fat, located in the space between the myocardial muscle and the pericardial sac. When compared with subcutaneous adipose tissue, visceral adipocytes show higher metabolic activity, lipolysis rates, increased insulin resistance along with more steroid hormone receptors. The epicardial adipose tissue interacts with numerous cardiovascular pathways via vasocrine and paracrine signalling comprised of pro-and anti-inflammatory cytokines excretion. Both the physiological differences be-tween the two tissue types, as well as the fact that fat distribution and phenotype, rather than quantity, affect cardiovascular function and metabolic processes, establish epicardial fat as a biomarker for cardiovascular and metabolic syndrome. Numerous studies have underlined an association of altered epicardial fat morphology, type 2 diabetes mellitus(T2 DM) and adverse cardiovascular events. In this review, we explore the prospect of using the epicardial adipose tissue as a therapeutic target in T2 DM and describe the underlying mechanisms by which the antidiabetic drugs affect the pathophysiological processes induced from adipose tissue accumulation and possibly allow for more favourable cardiovascular outcomes though epicardial fat manipulation.

关键词： Epicardial fat Adipose tissue Type 2 diabetes mellitus Antidiabetic drugs

A typological,environmental and socio-cultural study of semi-open spaces in the Eastern Mediterranean vernacular architecture:The case of Cyprus

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Frontiers of Architectural Research 2021年第3期10卷 483-501页

作者： Maria Philokyprou Aimilios Michael eleni Malaktou Department of Architecture University of Cyprus1678 NicosiaCyprus

Semi-open spaces-largely incorporated in vernacular dwellings in Cyprus during the 19th and 20th centuries-formed diachronically significant socio-cultural, functional and environmental features of the vernacular architecture of the area. The climate of the Eastern Mediterranean region, i.e., hot summers and mild winters, encouraged the use of open weather protected spaces, thus leading to the widespread incorporation of such spaces in the vernacular architecture of the region. This paper focuses on the interconnections between architectural forms and human comfort, convenience or pleasure in relation to the semiopen spaces found in the vernacular architecture of Cyprus-an island in the Eastern Mediterranean region. For the purpose of this research, characteristic traditional settlements found in the coastal, lowland and mountainous areas-which represent three different climatic regions and topographies of the island-were selected for an in-depth investigation. The findings confirm a high frequency of semi-open spaces, as well as the existence of a remarkable richness of typologies. Although semi-open spaces constitute a fundamental part of the structure of these vernacular dwellings in all climatic regions examined, they dominate in the lowland regions due to the particularly hot climate, as well as the specific activities of the inhabitants of these areas. The prevailing architectural forms and constructions of these spaces in each climatic region under investigation was found to be closely adapted to the local resources, terrain and climate, while also being related to the social, household and agricultural needs of the inhabitants, thus underlining their sustainable and locus-specific conception. Research findings can contribute towards critically re-thinking semi-open spaces and their inherent value in rehabilitation projects, as well as in contemporary residential architecture.

关键词： Semi-open spaces Vernacular residential architecture Different climatic regions and topographies Typology Environmentally responsive design Socio-cultural aspects

Development of a Soft Actor Critic deep reinforcement learning approach for harnessing energy flexibility in a Large Office building

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能源与人工智能(英文) 2021年第3期5卷 228-241页

作者： Anjukan Kathirgamanathan eleni Mangina Donal P.Finn School of Mechanical and Materials Engineering University College DublinIreland UCD Energy Institute O’Brien Centre for ScienceUniversity College DublinIreland School of Computer Science University College DublinIreland

This research is concerned with the novel application and investigation of‘Soft Actor Critic’based deep reinforcement learning to control the cooling setpoint(and hence cooling loads)of a large commercial building to harness energy *** research is motivated by the challenge associated with the development and application of conventional model-based control approaches at scale to the wider building *** Actor Critic is a model-free deep reinforcement learning technique that is able to handle continuous action spaces and which has seen limited application to real-life or high-fidelity simulation implementations in the context of automated and intelligent control of building energy *** control techniques are seen as one possible solution to supporting the operation of a smart,sustainable and future electrical *** research tests the suitability of the technique through training and deployment of the agent on an EnergyPlus based environment of the office *** agent was found to learn an optimal control policy that was able to minimise energy costs by 9.7%compared to the default rule-based control scheme and was able to improve or maintain thermal comfort limits over a test period of one *** algorithm was shown to be robust to the different hyperparameters and this optimal control policy was learnt through the use of a minimal state space consisting of readily available *** robustness of the algorithm was tested through investigation of the speed of learning and ability to deploy to different seasons and *** was found that the agent requires minimal training sample points and outperforms the baseline after three months of operation and also without disruption to thermal comfort during this *** agent is transferable to other climates and seasons although further retraining or hyperparameter tuning is recommended.

关键词： Deep Reinforcement Learning(DRL) Building energy flexibility Soft Actor Critic(SAC) Machine learning Smart grid

Antidiabetic treatment on memory and spatial learning: From the pancreas to the neuron

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World Journal of Diabetes 2019年第3期10卷 169-180页

作者： eleni Xourgia Athanasia Papazafiropoulou Andreas Melidonis 1~(st) Department of Internal Medicine and Diabetes Center Tzaneio General Hospital of Piraeus

The detrimental effects of constant hyperglycemia on neural function have been quantitatively and qualitatively evaluated in the setting of diabetes mellitus. Some of the hallmark features of diabetic encephalopathy (DE) are impaired synaptic adaptation and diminished spatial learning capacity. Chronic and progressive cognitive dysfunction, perpetuated by several positive feedback mechanisms in diabetic subjects, facilitates the development of early-onset dementia and Alzheimer’s disease. Despite the numerous clinical manifestations of DE having been described in detail and their pathophysiological substrate having been elucidated in both type 1 and type 2 diabetes mellitus, an effective therapeutic approach is yet to be proposed. Therefore, the aim of this review is to summarize the growing body of evidence concerning the effect of current antidiabetic treatment options on diabetic and non-DE.

关键词： Memory Spatial learning Cognitive Neural remodeling Type 2 diabetes mellitus Antidiabetic drugs

VPOT:A Customizable Variant Prioritization Ordering Tool for Annotated Variants

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Genomics, Proteomics & Bioinformatics 2019年第5期17卷 540-545页

作者： Eddie Ip Gavin Chapman David Winlaw Sally LDunwoodie eleni Giannoulatou Victor Chang Cardiac Research Institute Sydney 2010Australia St Vincent’s Clinical School University of New South WalesSydney 2052Australia Heart Centre for Children The Children’s Hospital at WestmeadSydney 2145Australia Sydney Medical School University of SydneySydney 2050Australia School of Biotechnology and Biomolecular Sciences University of New South WalesSydney 2033Australia

Next-generation sequencing(NGS) technologies generate thousands to millions of genetic variants per *** of potential disease-causal variants is labor intensive as it relies on filtering using various annotation metrics and consideration of multiple pathogenicity prediction *** have developed VPOT(variant prioritization ordering tool),a python-based command line tool that allows researchers to create a single fully customizable pathogenicity ranking score from any number of annotation values,each with a user-defined *** use of VPOT can be informative when analyzing entire cohorts,as variants in a cohort can be *** also provides additional functions to allow variant filtering based on a candidate gene list or by affected status in a family *** outperforms similar tools in terms of efficacy,flexibility,scalability,and computational *** is freely available for public use at Git Hub(https://***/VCCRI/VPOT/).Documentation for installation along with a user tutorial,a default parameter file,and test data are provided.

关键词： Next-generation sequencing Pathogenicity predictions Variant prioritization Customizable ranking Genomic annotation