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Imaging features of malignant vs stone-induced biliary obstruction:Aspects to consider

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World Journal of Clinical Cases 2024年第15期12卷 2678-2681页

作者： cristian lindner Department of Radiology Faculty of MedicineUniversity of ConcepciónConcepción 4030000Chile

Radiological studies play a crucial role in the evaluation of patients with biliary duct obstruction,allowing for the guidance of clinical diagnosis towards a malignant or stone-induced etiology through the recognition of relevant imaging features,which must be continuously revisited given their prognostic significance.This article aims to emphasize the importance of recognizing crucial imaging aspects of malignant and stone-induced biliary obstruction.

关键词： Malignant biliary obstruction Choledocholithiasis Dilated bile ducts Magnetic resonance Multidetector computed tomography

Emerging and multifaceted potential contributions of polyphenols in the management of type 2 diabetes mellitus

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World Journal of Diabetes 2024年第2期15卷 154-169页

作者： Ileana González cristian lindner Ivan Schneider Erik Diaz Miguel Angel Morales Armando Rojas Biomedical Research Laboratories Faculty of MedicineCatholic University of MauleTalca 34600000Chile Department of Radiology Faculty of MedicineUniversity of ConcepciónConcepción 4030000Chile Centre of Primary Attention South Metropolitan Health ServiceSantiago 3830000Chile Faculty of Medicine Catholic University of MauleTalca 3460000Chile Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000Chile

Type 2 diabetes mellitus(T2DM)is recognized as a serious public health concern with a considerable impact on human life,long-term health expenditures,and substantial health losses.In this context,the use of dietary polyphenols to prevent and manage T2DM is widely documented.These dietary compounds exert their beneficial effects through several actions,including the protection of pancreatic islet β-cell,the antioxidant capacities of these molecules,their effects on insulin secretion and actions,the regulation of intestinal microbiota,and their contribution to ameliorate diabetic complications,particularly those of vascular origin.In the present review,we intend to highlight these multifaceted actions and the molecular mechanisms by which these plant-derived secondary metabolites exert their beneficial effects on type 2 diabetes patients.

关键词： Polyphenols Antioxidants Oxidative stress Type 2 diabetes mellitus Health benefits

Improving the radiological diagnosis of hepatic artery thrombosis after liver transplantation: Current approaches and future challenges

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World Journal of Transplantation 2024年第1期14卷 1-8页

作者： cristian lindner Raúl Riquelme Rodrigo San Martín Frank Quezada Jorge Valenzuela Juan P Maureira Martín Einersen Department of Radiology Faculty of MedicineUniversity of ConcepciónConcepción 4030000Chile Department of Radiology Hospital Clínico Regional Guillermo Grant BenaventeConcepción 4030000Chile Department of Statistics Catholic University of MauleTalca 3460000Chile Neurovascular Unit Department of RadiologyHospital Clínico Regional Guillermo Grant BenaventeConcepción 4030000Chile

Hepatic artery thrombosis(HAT)is a devastating vascular complication following liver transplantation,requiring prompt diagnosis and rapid revascularization treatment to prevent graft loss.At present,imaging modalities such as ultrasound,computed tomography,and magnetic resonance play crucial roles in diagnosing HAT.Although imaging techniques have improved sensitivity and specificity for HAT diagnosis,they have limitations that hinder the timely diagnosis of this complication.In this sense,the emergence of artificial intelligence(AI)presents a transformative opportunity to address these diagnostic limitations.The development of machine learning algorithms and deep neural networks has demonstrated the potential to enhance the precision diagnosis of liver transplant complications,enabling quicker and more accurate detection of HAT.This article examines the current landscape of imaging diagnostic techniques for HAT and explores the emerging role of AI in addressing future challenges in the diagnosis of HAT after liver transplant.

关键词： Liver transplantation Postoperative complications Hepatic artery Thrombosis Radiology Artificial intelligence

Contributions of the receptor for advanced glycation end products axis activation in gastric cancer

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World Journal of Gastroenterology 2023年第6期29卷 997-1010页

作者： Armando Rojas cristian lindner Iván Schneider Ileana González Miguel Angel Morales Biomedical Research Laboratories Medicine FacultyCatholic University of MauleTalca 34600000Chile Medicine Faculty Catholic University of MauleTalca 34600000Chile Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000Chile

Compelling shreds of evidence derived from both clinical and experimental research have demonstrated the crucial contribution of receptor for advanced glycation end products(RAGE)axis activation in the development of neoplasms,including gastric cancer(GC).This new actor in tumor biology plays an important role in the onset of a crucial and long-lasting inflammatory milieu,not only by supporting phenotypic changes favoring growth and dissemination of tumor cells,but also by functioning as a pattern-recognition receptor in the inflammatory response to Helicobacter pylori infection.In the present review,we aim to highlight how the overexpression and activation of the RAGE axis contributes to the proliferation and survival of GC cells as and their acquisition of more invasive phenotypes that promote dissemination and metastasis.Finally,the contribution of some single nucleotide polymorphisms in the RAGE gene as susceptibility or poor prognosis factors is also discussed.

关键词： Gastric cancer Advanced glycation end-products Receptor of advanced glycation end-products Alarmins Helicobacter pylori Chronic inflammation

Receptor of advanced glycation end-products axis and gallbladder cancer:A forgotten connection that we should reconsider

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World Journal of Gastroenterology 2022年第39期28卷 5679-5690页

作者： Armando Rojas cristian lindner Iván Schneider Ileana Gonzàlez Miguel Angel Morales Biomedical Research Laboratories Catholic University of MauleTalca 34600000MauleChile Medicine Faculty Catholic University of MauleTalca 34600000MauleChile Department of Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000SantiagoChile

Compelling evidence derived from clinical and experimental research has demonstrated the crucial contribution of chronic inflammation in the development of neoplasms,including gallbladder cancer.In this regard,data derived from clinical and experimental studies have demonstrated that the receptor of advanced glycation end-products(RAGE)/AGEs axis plays an important role in the onset of a crucial and long-lasting inflammatory milieu,thus supporting tumor growth and development.AGEs are formed in biological systems or foods,and food-derived AGEs,also known as dietary AGEs are known to contribute to the systemic pool of AGEs.Once they bind to RAGE,the activation of multiple and crucial signaling pathways are triggered,thus favoring the secretion of several proinflammatory cytokines also involved in the promotion of gallbladder cancer invasion and migration.In the present review,we aimed to highlight the relevance of the association between high dietary AGEs intakes and high risk for gallbladder cancer,and emerging data supporting that dietary intervention to reduce gallbladder cancer risk is a very attractive approach that deserves much more research efforts.

关键词： Gallbladder cancer Advanced glycation end-products Receptor of advanced glycation end-products Chronic inflammation Nutrition

Receptor for advanced glycation end-products axis and coronavirus disease 2019 in inflammatory bowel diseases:A dangerous liaison?

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World Journal of Gastroenterology 2021年第19期27卷 2270-2280页

作者： Armando Rojas Ivan Schneider cristian lindner Ileana Gonzalez Miguel Angel Morales Medicine Faculty Catholic University of MauleTalca 3634000Chile Department of Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000Chile

Compelling evidence supports the crucial role of the receptor for advanced glycation end-products(RAGE)axis activation in many clinical entities.Since the beginning of the coronavirus disease 2019 pandemic,there is an increasing concern about the risk and handling of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection in inflammatory gastrointestinal disorders,such as inflammatory bowel diseases(IBD).However,clinical data raised during pandemic suggests that IBD patients do not have an increased risk of contracting SARS-CoV-2 infection or develop a more severe course of infection.In the present review,we intend to highlight how two potentially important contributors to the inflammatory response to SARS-CoV-2 infection in IBD patients,the RAGE axis activation as well as the cross-talk with the renin-angiotensin system,are dampened by the high expression of soluble forms of both RAGE and the angiotensin-converting enzyme(ACE)2.The soluble form of RAGE functions as a decoy for its ligands,and soluble ACE2 seems to be an additionally attenuating contributor to RAGE axis activation,particularly by avoiding the transactivation of the RAGE axis that can be produced by the virus-mediated imbalance of the ACE/angiotensin II/angiotensin II receptor type 1 pathway.

关键词： COVID-19 Inflammatory bowel diseases Advanced glycation Angiotensinconverting enzyme 2 Alarmins Receptor for advanced glycation end-products Receptor for advanced glycation end-products axis Inflammation

Advanced-glycation end-products axis:A contributor to the risk of severe illness from COVID-19 in diabetes patients

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World Journal of Diabetes 2021年第5期12卷 590-602页

作者： Armando Rojas cristian lindner Ileana Gonzàlez Miguel Angel Morales Biomedical Research Labs Medicine FacultyCatholic University of MauleTalca 3460000Chile Medicine Faculty Catholic University of MauleTalca 3460000Chile Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000Chile

Compelling pieces of evidence derived from both clinical and experimental research has demonstrated the crucial role of the receptor for advanced-glycation end-products(RAGE)in orchestrating a plethora of proinflammatory cellular responses leading to many of the complications and end-organ damages reported in patients with diabetes mellitus(DM).During the coronavirus disease 2019(COVID-19)pandemic,many clinical reports have pointed out that DM increases the risk of COVID-19 complications,hospitalization requirements,as well as the overall severe acute respiratory syndrome coronavirus 2 case-fatality rate.In the present review,we intend to focus on how the basal activation state of the RAGE axis in common preexisting conditions in DM patients such as endothelial dysfunction and hyperglycemia-related prothrombotic phenotype,as well as the contribution of RAGE signaling in lung inflammation,may then lead to the increased mortality risk of COVID-19 in these patients.Additionally,the crosstalk between the RAGE axis with either another severe acute respiratory syndrome coronavirus 2 receptor molecule different of angiotensin-converting enzyme 2 or the renin-angiotensin system imbalance produced by viral infection,as well as the role of this multi-ligand receptor on the obesity-associated lowgrade inflammation in the higher risk for severe illness reported in diabetes patients with COVID-19,are also discussed.

关键词： COVID-19 Diabetes mellitus Advanced glycation Alarmins Advancedglycation end-products axis Inflammation

Diabetes mellitus contribution to the remodeling of the tumor microenvironment in gastric cancer

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World Journal of Gastrointestinal Oncology 2021年第12期13卷 1997-2012页

作者： Armando Rojas cristian lindner Iván Schneider Ileana Gonzàlez Hernan Araya Erik Morales Milibeth Gómez Nelson Urdaneta Paulina Araya Miguel Angel Morales Biomedical Research Lab. Medicine FacultyCatholic University of MauleTalca 34600000Chile Department of Clinical Sciences Medicine FacultyCatholic University of MauleTalca 34600000Chile Servicio de Oncología Hospital Regional de TalcaTalca 34600000Chile Servicio de Anatomía Patologica Hospital Regional de TalcaTalca 34600000Chile Department of Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000Chile

Compelling pieces of evidence derived from both clinical and experimental research has demonstrated the crucial contribution of diabetes mellitus(DM)as a risk factor associated with increased cancer incidence and mortality in many human neoplasms,including gastric cancer(GC).DM is considered a systemic inflammatory disease and therefore,this inflammatory status may have profound effects on the tumor microenvironment(TME),particularly by driving many molecular mechanisms to generate a more aggressive TME.DM is an active driver in the modification of the behavior of many cell components of the TME as well as altering the mechanical properties of the extracellular matrix(ECM),leading to an increased ECM stiffening.Additionally,DM can alter many cellular signaling mechanisms and thus favoring tumor growth,invasion,and metastatic potential,as well as key elements in regulating cellular functions and cross-talks,such as the microRNAs network,the production,and cargo of exosomes,the metabolism of cell stroma and resistance to hypoxia.In the present review,we intend to highlight the mechanistic contributions of DM to the remodeling of TME in GC.

关键词： Diabetes mellitus Gastric cancer Tumor microenvironment Hyperglycemia Chronic inflammation

Isoform-and cell-state-specific APOE homeostasis and function

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Neural Regeneration Research 2024年第11期19卷 2456-2466页

作者： Karina lindner Anne-Claude Gavin Department of Cell Physiology and Metabolism Faculty of MedicineUniversity of GenevaGenevaSwitzerland Diabetes Center Faculty of MedicineUniversity of GenevaGenevaSwitzerland

Apolipoprotein E is the major lipid transporter in the brain and an important player in neuron-astrocyte metabolic coupling.It ensures the survival of neurons under stressful conditions and hyperactivity by nourishing and detoxifying them.Apolipoprotein E polymorphism,combined with environmental stresses and/or age-related alterations,influences the risk of developing late-onset Alzheimer’s disease.In this review,we discuss our current knowledge of how apolipoprotein E homeostasis,i.***.its synthesis,secretion,degradation,and lipidation,is affected in Alzheimer’s disease.

关键词： Alzheimer’s disease apolipoprotein E autophagy cholesterol lipid detoxification lipid transport lysosomal failure metabolic impairment triacylglycerol