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Role of exosomal circular RNAs as microRNA sponges and potential targeting for suppressing hepatocellular carcinoma growth and progression

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World Journal of Gastroenterology 2024年第9期30卷 994-998页

作者： nikolaos Papadopoulos Eleni-Myrto Trifylli The second Department of Internal Medicine 401 General Army Hospital of AthensAthens 11525Greece The First Department of Internal Medicine 417 Share Army Fund HospitalAthens 11521Greece

In this editorial,we comment on the article by Lyu et al published in the recent issue of the World Journal of Gastroenterology(2023;2219-2840).Hepatocellular carcinoma(HCC)is a frequently encountered and highly aggressive primary liver cancer,which remains the third-commonest cause of cancer-related death despite the current therapeutic *** is urgency in developing novel thera-peutic approaches,such as by manipulating extracellular vesicles,which con-stitute a highly heterogeneous nanoparticle population that contains various *** cargoes have a pivotal role in cell-to-cell communication and can modify the functional level of the recipient cells via their uptake by other recipient *** non-coding RNAs have particular evolving significance in HCC,such as circular RNAs,which have been found differentially expressed in normal hepatic and HCC *** aberrations in their expression levels have a key role in the HCC development and progression and the overall *** this editorial,we will shed light on the emerging role of exosomal circular RNAs in HCC development and progression,focusing on the oncogenic or potentially tumor suppressive effect of mesenchymal stem cells-derived exosomal non-coding RNAs.

关键词： circular sponge progression

Drawing lines in the sand: The growing threat of obesity in type 1 diabetes

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World Journal of Diabetes 2024年第5期15卷 823-827页

作者： Theocharis Koufakis Dimitrios Patoulias Ioanna Zografou nikolaos Papanas Djordje s Popovic second Propedeutic Department of Internal Medicine Aristotle University of ThessalonikiThessaloniki 54642Greece Diabetes Centre Second Department of Internal MedicineDemocritus University of ThraceAlexandroupolis 68100Greece Clinic for Endocrinology Diabetes and Metabolic DisordersClinical Center of VojvodinaMedical FacultyUniversity of Novi SadNovi Sad 21000Serbia

In this editorial,we comment on the article by Zeng et al published in the recent issue of the World Journal of Diabetes in *** focus on the epidemiological,pathophysiological,and clinical interplay between obesity and type 1 diabetes mellitus(T1DM).Overweight and obesity represent a growing threat for modern societies and people with T1DM could not be an exception to this *** exogenous insulin administration,genetic and epigenetic factors,and psy-chosocial and behavioral parameters,along with the modern way of life that incorporates unhealthy eating patterns and physical inactivity,set the stage for the increasing obesity rates in *** our knowledge of the underlying mechanisms that lead to the development of obesity and hyperglycemia expands,it becomes clear that there are overlap zones in the pathophysiology of the two main types of *** regarding strict dividing lines between“autoimmune”and“metabolic”phenotypes increase the risk of trapping physicians into ineffective therapeutic approaches,instead of individualized diabetes *** this context,the use of adjuncts to insulin therapy that have the potential to alleviate cardiorenal risk and decrease body weight can reduce the burden of obesity in patients with T1DM.

关键词： Obesity Overweight Type 1 diabetes Metabolic syndrome

COVID-19 in pregnancy:Perinatal outcomes and complications

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World Journal of Virology 2024年第4期13卷 62-73页

作者： Karolina Akinosoglou Georgios schinas Evangelia papageorgiou Theodoros Karampitsakos VasilikiDimakopoulou Eleni Polyzou Argyrios Tzouvelekis Markos Marangos Despoina papageorgiou nikolaos spernovasilis George Adonakis Department of Medicine University of PatrasPatras 26504Greece Department of Obstetrics and Gynecology University General Hospital of PatrasPatras 26504Greece Department of Pneumonology University General Hospital of PatrasPatras 26504Greece Department of Infectious Diseases German Oncology CenterLimassol 4108LimassolCyprus

BACKGROUND The risk of severe coronavirus disease 2019(COVID-19)in pregnant women is *** To examine the outcomes of pregnant women with COVID-19 and report perinatal outcomes and complications,while providing a brief review of current *** The study included pregnant women presenting from April 2020 to February 2022 to the emergency department(ED)of a tertiary *** retrospectively recorded the maternal and perinatal files,including patient epidemiological and clinical characteristics,laboratory values,outcomes,treatment modalities and associations were *** Among the 60 pregnant women,25%required hospitalization,all of whom were *** delivery occurred in 30%of *** percent of neonates required admission to the neonatal intensive care unit,and 5%were classified as small for their gestational *** mothers survived COVID-19 and pregnancy,with 6.6%requiring invasive mechanical *** delivery rates did not differ between hospitalized and non-hospitalized pregnant women;composite unfavorable perinatal outcomes,including stillbirth,small for gestational age,or neonatal intensive care unit(ICU)admission,did not significantly increase in the cases hospitalized for COVID-19(P=0.09).The odds of hospitalization increased 2.3-fold for each day of delayed ED presentation[***(95%CI:1.46-3.624),Pstatus was an independent predictor of hospitalization,albeit with marginal significance[***=16.13(95%CI:1.021-255.146),P=0.048].No independent predictors of adverse fetal outcome(composite)were identified,and eventual hospitalization failed to reach statistical significance by a slight margin(P=0.054).CONCLUsION Delayed ED presentation and comorbidities increase hospitalization *** study highlights the importance of continuous and specific guidance for managing pregnant COVID-19 patients,including timely and appropriate interventions to minimize maternal and perinatal morbidity an

关键词： sARs-CoV-2 COVID-19 Pregnancy Maternal outcomes Preterm delivery

Multifunctional HDPE/Cu biocidal nanocomposites for MEX additive manufactured parts: Perspectives for the defense industry

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Defence Technology（防务技术） 2024年第8期38卷 16-32页

作者： Nectarios Vidakis nikolaos Michailidis Markos Petousis Nektarios K.Nasikas Vassilios saltas Vassilis Papadakis nikolaos Mountakis Apostolos Argyros Mariza spiridaki Ioannis Valsamos Department of Mechanical Engineering Hellenic Mediterranean UniversityHeraklion 71410Greece Physical Metallurgy Laboratory Mechanical Engineering DepartmentSchool of EngineeringAristotle University of ThessalonikiThessaloniki 54124Greece Centre for Research&Development of Advanced Materials(CERDAM) Center for Interdisciplinary Research and InnovationBalkan CentreThessaloniki 57001Greece Division of Mathematics and Engineering sciences Department of Military SciencesHellenic Army AcademyVari GR16673AtticaGreece Department of Electronic Engineering Hellenic Mediterranean UniversityChania 73133Greece Department of Industrial Design and Production Engineering University of West AtticaAthens 12244Greece Institute of Electronic structure and Laser Foundation for Research and Technology-HellasHeraklion 70013Greece

In this study, we investigated the performance improvement caused by the addition of copper(Cu)nanoparticles to high-density polyethylene(HDPE) matrix material. Composite materials, with filler percentages of 0.0, 2.0, 4.0, 6.0, 8.0, and 10.0 wt% were synthesized through the material extrusion(MEX)3D printing technique. The synthesized nanocomposite filaments were utilized for the manufacturing of specimens suitable for the experimental procedure that followed. Hence, we were able to systematically investigate their tensile, flexural, impact, and microhardness properties through various mechanical tests that were conducted according to the corresponding standards. Broadband Dielectric spectroscopy was used to investigate the electrical/dielectric properties of the composites. Moreover, by employing means of Raman spectroscopy and thermogravimetric analysis(TGA) we were also able to further investigate their vibrational, structural, and thermal properties. Concomitantly, means of scanning electron microscopy(sEM), as well as atomic force microscopy(AFM), were used for the examination of the morphological and structural characteristics of the synthesized specimens, while energy-dispersive Xray spectroscopy(EDs) was also performed in order to receive a more detailed picture on the structural characteristics of the various synthesized composites. The corresponding nanomaterials were also assessed for their antibacterial properties regarding staphylococcus aureus(s. aureus) and Escherichia coli(E. coli) with the assistance of a method named screening agar well diffusion. The results showed that the mechanical properties of HDPE benefited from the utilization of Cu as a filler, as they showed a notable improvement. The specimen of HDPE/Cu 4.0 wt% was the one that presented the highest levels of reinforcement in four out of the seven tested mechanical properties(for example, it exhibited a 36.7%improvement in the flexural strength, compared to the pure matrix). At the same

关键词： High-density polyethylene(HDPE) Copper(Cu) Material extrusion(MEX) Mechanical performance Electrical properties Antibacterial Defense and security

A novel comparison framework for epidemiological strategies applied to age-based restrictions versus horizontal lockdowns

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Infectious Disease Modelling 2024年第4期9卷 1301-1328页

作者： Vasiliki Bitsouni nikolaos Gialelis Vasilis Tsilidis Department of Mathematics University of PatrasGR-26504Rio PatrasGreece Department of Mathematics National and Kapodistrian University of AthensGR-15784AthensGreece school of Medicine National and Kapodistrian University of AthensGR-11527AthensGreece

During an epidemic,such as the COVID-19 pandemic,policy-makers are faced with the decision of implementing effective,yet socioeconomically costly intervention strategies,such as school and workplace closure,physical distancing,*** this study,we propose a rigorous definition of epidemiological *** addition,we develop a scheme for comparing certain epidemiological strategies,with the goal of providing policy-makers with a tool for their systematic ***,we put the suggested scheme to the test by employing an age-based epidemiological compartment model introduced in Bitsouni et al.(2024),coupled with data from the literature,in order to compare the effectiveness of age-based and horizontal *** general,our findings suggest that these two are comparable,mainly at a low or medium level of intensity.

关键词： Epidemiological strategy Comparison scheme Basic reproductive number Horizontal restrictions Aged-based interventions Asymptomatic infectious

Downstaging strategies for unresectable hepatocellular carcinoma

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World Journal of Gastroenterology 2024年第20期30卷 2731-2733页

作者： Georgia sofia Karachaliou nikolaos Dimitrokallis Dimitrios P Moris Division of Gastroenterology Department of MedicineDuke University Medical CenterDurhamNC 27710United States First Department of surgery&Organ Transplant Unit Evangelismos General HospitalAthens 10676Greece Department of surgery Duke University Medical CenterDurhamNC 27710United States

A significant number of patients with hepatocellular carcinoma(HCC)are usually diagnosed in advanced stages,that leads to inability to achieve *** options are focusing on downstaging a locally advanced *** is wellsupported in the literature that patients with HCC who undergo successful conversion therapy followed by curative-intent surgery may achieve a significant survival benefit compared to those who receive chemotherapy alone or those who are successfully downstaged with conversion therapy but not treated with *** artery infusion chemotherapy can be a potential downstaging strategy,since recent studies have demonstrated excellent outcomes in patients with colorectal liver metastatic disease as well as primary liver malignancies.

关键词： Unresectable hepatocellular carcinoma Hepatic arterial infusion chemotherapy Downstaging Hepatocellular carcinoma

Time to say goodbye: from Barcelona to Milan and the modern management of hepatocellular carcinoma

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Hepatobiliary surgery and Nutrition 2024年第3期13卷 548-550页

作者： Georgia sofia Karachaliou nikolaos Dimitrokallis Dimitrios Moris Division of Gastroenterology Department of MedicineDuke University Medical CenterDurhamNCUSA st Department of surgery&Organ Transplant Unit Evangelismos General HospitalAthensGreece Department of surgery Duke University Medical CenterDurhamNCUSA

Hepatocellular carcinoma(HCC)is the most common primary liver malignancy and one of the most common causes of cancer-related death with the projection to increase during the next few decades(1).During the last 3 decades,several staging systems have been introduced for the stratification of the prognosis and management of HCC of all *** is no consensus regarding the universal implementation of one staging system since all the proposed classifications have limitations(2).The Barcelona Clinic Liver Cancer(BCLC)staging system remains the most widely classification system used for HCC management guidelines that incorporates tumor size,presence of metastatic disease,portal hypertension,Child-Turcotte-Pugh score,total bilirubin and performance ***,it does not account for tumoral behavior,and it is very“conservative”(restrictive)regarding resectability,especially for BCLC-B patients who might benefit from surgical management(3,4).Recent advances in systemic and locoregional therapies have led to changes in many guidelines regarding systemic therapy,as well as the possibility for downstaging patients to undergo surgery or transplant with curative intent.

关键词： Hepatocellular carcinoma(HCC) Barcelona Clinic Liver Cancer(BCLC) tumor burden score

Beamline design for multipurpose muon beams at CsNs EMus

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Nuclear science and Techniques 2024年第5期35卷 1-12页

作者： Yang Hong Ying-Peng song Lu-Ping Zhou Jing-Yu Tang Zhi-Hao Zhou nikolaos Vassilopoulos Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China spallation Neutron source science Center Dongguan 523803China University of Chinese Academy of sciences Beijing 100049China Radiotherapy Physics and Technology Center Cancer CenterWest China HospitalSichuan UniversityChengdu 610041China Xi’an Jiaotong University Health science Center Xi’an 710049China Department of Radiation Oncology First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710049China school of Nuclear science and Technology University of Science and Technology of ChinaHefei 230027China

A new muon beam facility,called the Experimental Muon source(EMus),was proposed for construction at the China spallation Neutron source(CsNs).The design of the complex muon beamlines for the EMus baseline scheme,which is based on superconducting solenoids,superferric dipoles and room-temperature magnets,is presented *** muon beams,including surface muons,decay muons and low energy muons,have been developed for multipurpose *** optics design and simulation results of the trunk beamline and branch beamlines are *** a proton beam power of 25 kW at a standalone target station that consists of a conical graphite target and high-field superconducting solenoids,the muon beam intensity in the trunk beamline varies from 10^(7)/s for surface muons to 10^(10)/s for high-momentum decay *** at the endstations,these values vary from 10^(5)/s for surface muons to 10^(8)/s for decay muons.

关键词： surface muons Decay muons Muon beamline superconducting solenoids Multi-channel electrostatic separator

slope stability of reclaimed coal mines through a new water filling index

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 828-839页

作者： Antonios Mikroutsikos Alexandros I.Theocharis nikolaos C.Koukouzas Ioannis E.Zevgolis Chemical Process&Energy Resources Institute Centre for Research&Technology HellasAthensGreece school of Mining and Metallurgical Engineering National Technical University of AthensAthensGreece

A common reclamation practice for closed coal surface mines is filling them with water to form pit *** creation and sustainability of these lakes are significantly affected by the stability of the corresponding *** present study provides a general framework for analyzing the water filling’s effect on slope stability based on a new water filling index,which can indirectly consider the factors affecting the process and efficiently quantify the filling speed’s *** assumptions of the proposed approach are thoroughly discussed,and the range of the water filling index is ***,the safety factor is calculated using the finite element method with the shear strength reduction technique during the filling process for various conditions(soil properties,slope geometry,hydraulic conditions,and water filling speed).Results are presented as normalized stability charts for practical *** the water filling,the stability gradually decreases until the reservoir reaches a critical level of 10%e40%of the total height;it then increases to even more stable conditions than the initial ***,the present analysis allows for the preliminary stability evaluation of a coal mine during the formation of a pit lake and the appropriate quantification of the water filling’s effect.

关键词： Post-coal era Open-pit flooding stability charts Critical level