Mostrando 261 - 280 Resultados de 307 Para Buscar '"Homeostasis"', tiempo de consulta: 0.09s Limitar resultados
  1. 261
    Publicado 2018
    Tabla de Contenidos: “…Cerebral Angioplasticity: The Anatomical Contribution to Ensuring Appropriate Oxygen Transport to Brain -- Changes in Cytochrome-C-Oxidase Account for Changes in Attenuation of Near-Infrared Light in the Healthy Infant Brain -- Hyperspectral Imaging of the Hemodynamic and Metabolic States of the Exposed Cortex: Investigating a Commercial Snapshot Solution -- Impact of Aging on Metabolic Changes in the Ketotic Rat Brain: Glucose, Oxidative and 4-HNE Metabolism -- Increases in Microvascular Perfusion and Tissue Oxygenation via Vasodilatation after Anodal Transcranial Direct Current Stimulation in the Healthy and Traumatized Mouse Brain -- Fluctuations of Nutrition-associated Markers After Decompressive Hemicraniectomy in Middle Cerebral Artery Occlusion Patients -- Resuscitation Fluid with Drag Reducing Polymer Enhances Cerebral Microcirculation and Tissue Oxygenation after Traumatic Brain Injury Complicated by Hemorrhagic Shock -- Comparison of Quantitative and Qualitative Oxygen Extraction Fraction (OEF) in Acute Stroke Patients with Large Vessel Occlusion -- Relation Between Asymmetry of Prefrontal Activity and Autonomic Nervous System in Post-stroke Patients with a Disorder of Consciousness -- Cerebral Hemodynamics after Transcranial Direct Current Stimulation (tDCS) in Patients with Consequences of Traumatic Brain Injury -- Differences in Tissue Oxygenation, Perfusion and Optical Properties in Brain Areas Affected by Stroke: A Time-resolved NIRS Study -- Changes of Doublecortin-immunoreactive Cells from the Acute Phase to Chronic Phase after Transient Global Brain Ischemia in Rat Cingulate Cortex -- Post-resuscitation Arterial Blood Pressure on Survival and Change of Capillary Density following Cardiac Arrest and Resuscitation in Rats -- Monitoring of Brain Oxygenation During and After Cardiopulmonary Resuscitation: A Prospective Porcine Study -- Effects of Aerobic Cycling Training on O2 Dynamics in Several Leg Muscles in Early Post-Myocardial Infarction -- Evaluation of Functional Hyperemia using NIRTRS without the Influence of Fat Layer Thickness -- Changes in Spinal Muscle Oxygenation and Perfusion during the Biering-Sørensen Test: Preliminary Results of a Study Employing NIRS-based Muscle Oximetry -- Near Infrared Spectroscopy (NIRS) Observation of Vastus Lateralis (muscle) and Prefrontal Cortex (brain) Tissue Oxygenation during Synchronised Swimming Routines in Elite Athletes -- Impact of Changes in Systemic Physiology on fNIRS/NIRS Signals: Analysis Based on Oblique Subspace Projections Decomposition -- Changes in Cerebral Oxyhaemoglobin Levels During and After a Single 20-minute Bout of Moderate-intensity Cycling -- Changes in the Prefrontal Cortex Oxygenation Levels during Cycling in the Supine and Upright Positions -- Trail Making Test Induces Prefrontal Cortex Activation as Revealed by a cw Wearable-Wireless fNIRS/DOT Imager -- Prediction of MMSE Score Using Time-resolved Near-infrared Spectroscopy -- Broadband NIRS Cerebral Cytochrome-C-Oxidase Response to Anoxia Before and After Hypoxic-Ischaemic Injury in Piglets -- Synchronized Oscillations of Arterial Oxygen Saturation, Cerebral Tissue Oxygenation and Heart Rate in Preterm Neonates: Investigation of Long-Term Measurements with Multiple Einstein’s Cross Wavelet Analysis -- Multispectral Near-Infrared Optical Tomography for Cancer Hypoxia Study in Mice -- Hypoxia-/HIF-1α-Driven Factors of the Tumor Microenvironment Impeding Antitumor Immune Responses and Promoting Malignant Progression -- Differential Expression of PGC1α in Intratumor Redox Subpopulations of Breast Cancer -- Accounting for Two Forms of Hypoxia for Predicting Tumour Control Probability in Radiotherapy: An In Silico Study -- Impact of Temporal Heterogeneity of Acute Hypoxia on the Radiation Response of Experimental Tumors -- Mathematical Description of Changes in Tumour Oxygenation from Repeated Functional Imaging -- An In Vitro Model for Determining Tumor Cell Migration Under Metabolic Gradients -- Expression of MicroRNAs in Fibroblasts and Macrophages Is Regulated by Hypoxia-Induced Extracellular Acidosis -- Influence of Extracellular Acidosis on Matrix Protein Homeostasis in Tumour Cells and Fibroblasts -- Novel Redox Active Tyrosine Mutations Enhance the Regeneration of Functional Oxyhemoglobin from Methemoglobin: Implications for Design of Blood Substitutes -- Septic-induced microRNA Expression Modulations are linked to Angiogenesis, Vasomotion, and Hypoxia-induced Processes -- Guidance to Transfer ‘Bench-ready’ Medical Technology into Usual Clinical Practice - Case Study: Sensors and Spectrometer used in EPR Oximetry -- Regulation of Oxygen Tension in the Mammalian Retina During Systemic Hyperoxia is Species Dependent -- Intravital Observation of Microvascular Remodeling during Chronic Exposure to Hypoxia in Mice -- Analysis of Aortic Remodeling and Stiffness in Patients with Obstructive Sleep Apnea Syndrome: Preliminary Results -- Does Vascular Endothelial Cell or Smooth Muscle affect the Decrease in Oxygen Consumption of Arteriolar Wall during Vasodilation -- Hyperbaric Oxygen Therapy in Necrotizing Soft Tissue Infections: A Retrospective Study -- Dynamic Exercise Elicits Dissociated Changes between Tissue Oxygenation and Cerebral Blood Flow in the Prefrontal Cortex: A Study using NIRS and PET -- Mucine-1 is Related to Cell-Mediated Immunoexpression and Blood Pressure in Pulmonary Artery in Pulmonary Arterial Hypertension (PAH): Preliminary Results -- The Mitochondrial Na+/Ca2+ Exchanger is Necessary but not Sufficient for Ca2+ Homeostasis and Viability -- Hemoglobin Dynamics in the Skeletal Muscle of Patients with Malignant Hematopoietic Disease -- Fatigue, Muscle Oxygen Consumption and Blood Flow to the Skeletal Muscle after Allogeneic Hematopoietic Stem Cell Transplantation -- Reliability of Wearable Two Channel CW-NIRS in Measurements of Brain Function -- Investigation of Confounding Factors in Measuring Tissue Saturation with NIRS Spatially Resolved Spectroscopy -- Discrimination of Complex Activation Patterns in Near Infrared Optical Tomography with Artificial Neural Networks -- ABroAD: A Machine Learning Based Approach to Detect Broadband NIRS Artefacts -- Absolute Values of Optical Properties (μa, μs', μeff and DPF) of Human Head Yissue: Dependence on Head Region and Individual -- Long-term Changes in Optical Properties (μa, μs', μeff and DPF) of Human Head Tissue during Functional Neuroimaging Experiments -- A Fibreless Multiwavelength NIRS System for Imaging Localised Changes in Cerebral Oxidised Cytochrome C Oxidase -- Use of a Turn Coil and Channel above a GMR-SV Device to Observe and Measure the Properties of Deoxidized Red Blood Cells Coupled to Magnetic Beads -- Long-term in vivo Oxygen Sensors for Peripheral Artery Disease Monitoring -- A New Method Based on Virtual Fluence Detectors and Software Toolbox for Handheld Spectral Optoacoustic Tomography -- Computerized Video-capillaroscopy Alteration Related to Diabetes Mellitus and its Complications -- Contrast Ratio Quantification during Visualization of Microvasculature -- In vitro Comparisons of Near-Infrared Spectroscopy Oximeters: Impact of Slow Changes in Scattering of Liquid Phantoms -- Liquid Blood Phantoms to Validate NIRS Oximeters: Yeast versus Nitrogen for Deoxygenation -- Visualization of Methemoglobin Distribution in Tissues: Phantom Validation -- Polyunsaturated Fatty Acids induce ROS Synthesis in Microvascular Endothelial Cells -- Effect of Chain Unsaturation and Temperature on Oxygen Diffusion through Lipid Membranes from Simulations -- Reduced Oxygen Permeability upon Protein Incorporation within Phospholipid Bilayers -- Sanal-Cell Cycle and Primo Vascular System: Regeneration via Sanals -- Role of CXCR4 antagonist in Megakaryocyte Reinstatement with Increased Sinusoidal Vessel Density -- Solid-phase Extraction with Packed-Fiber is a Biological Sample Preparation Tool for Neuro-active Molecule Detection -- Salivary Alpha-amylase and Behavior Reaction in Acute Stress and the Impact of Tridimensional Personality…”
    Libro electrónico
  2. 262
    por Institute of Medicine (U.S.).
    Publicado 1991
    Tabla de Contenidos: “…Health Promotion and Disease Prevention in Old Age -- Studies of Geriatric Syndromes -- Failure to Thrive (Inanition) -- Impaired Postural Stability, Strength, and Mobility -- Mismanagement of Medications -- Urinary Incontinence -- Delirium -- Cardiovascular Disease -- Dementia, Pseudodementia, and Psychiatric Disorders -- Musculoskeletal Disorders -- Infectious Disease and Immunosenescence -- Neoplasia -- Disorders of Metabolism and Homeostasis -- ADDITIONAL RESEARCH OPPORTUNITIES -- RESOURCE RECOMMENDATIONS -- CROSSCUTTING ISSUES -- REFERENCES -- 4 Behavioral and Social Sciences -- JUSTIFICATION AND MAJOR THEMES -- The Dynamic Interaction of Individuals and Sociocultural Contexts -- Differentiation -- Modifiability -- RESEARCH PRIORITIES -- ADDITIONAL RESEARCH OPPORTUNITIES -- METHODOLOGICAL NEEDS -- Tests and Instruments -- Coordination of Large-Scale Research -- Field Intervention Studies -- RESOURCE RECOMMENDATIONS -- CROSS-DISCIPLINARY AND CROSSCUTTING ISSUES -- Gender -- Race and Ethnicity, Socioeconomic Status, and Other Cultural Factors -- Population Dynamics -- Brain, Environment, Society, and Behavior -- REFERENCES -- 5 Health Services Delivery Research -- LONG-TERM CARE AND CONTINUITY OF CARE FOR OLDER PERSONS -- Characteristics of Older Persons Requiring Long-Term Care -- Informal Providers of Long-Term Care -- Formal Long-Term Care -- Supply of Personnel for Long-Term Care -- Locus of Long-Term Care -- Quality Assurance -- Technologies -- FINANCING OF HEALTH CARE FOR OLDER PERSONS -- DRUG USE -- Inappropriate Prescribing -- Noncompliance -- Drug Costs and Older Persons -- MENTAL HEALTH SERVICES -- DISABILITY/DISEASE PREVENTION AND HEALTH PROMOTION SERVICES -- RESEARCH PRIORITIES -- ADDITIONAL RESEARCH OPPORTUNITIES -- RESOURCES REQUIRED -- CROSS-DISCIPLINARY AND CROSSCUTTING ISSUES -- REFERENCES -- 6 Research in Biomedical Ethics…”
    Libro electrónico
  3. 263
    por Montoreano, Ricardo
    Publicado 2004
    Tabla de Contenidos: “…2.2 MEDIO INTERNO Y HOMEOSTASIS2.3 MOVIMIENTO DE AGUA Y DE SOLUTOS A TRAVES DE LOS EPITELIOS Y ENTRE LOS COMPARTIMIENTOS INTRA Y EXTRACELULAR; - Mecanismos por los cuales se mueven el agua y los solutos.; Difusión; - Flujo unidireccional y flujo neto; - Ley de Fick.; - Viaje de un ion en el agua extracelular Imaginemos un ion Na+ en el agua plasmática, dentro de un capilar.; - Consecuencias de un flujo difusional; DIFUSION FACILITADA:; - Consecuencias de la presencia de transportadores: inhibición competitiva y no competitlva.; Filtración; - Volumen molar parcial del agua ( V )…”
    Libro electrónico
  4. 264
    Publicado 2018
    Tabla de Contenidos: “…TRÁNSITO DESDE LO FENOMENOLÓGICO HASTA LO FENOMÉNICO -- LA MUERTE COMO TEMPORALIDAD -- HEURÍSTICA DE LA EPOJÉ DESDE EL RECONOCIMIENTO DE UNA HOMEOSTASIS PARA UN TIEMPO-SER -- NIVELES PRIMARIOS EPISTÉMICOS DE LA MUERTE ANTE LA VIDA O NACIMIENTO -- EXÉGESIS DIALÉCTICO-DOCTRINAL DE LA MUERTE. …”
    Libro electrónico
  5. 265
    Publicado 2014
    Tabla de Contenidos: “…Agents Affecting Mineral Ion Homeostasis and Bone Turnover -- Section VI: Drugs Affecting Gastrointestinal Function -- 45. …”
    Libro electrónico
  6. 266
    por Santos Nalda, José
    Publicado 2011
    “…En consecuencia, mejora la salud mental, entendida como una homeostasis (equilibrio) corporal y mental. El zen es una forma de vivir la vida, una norma de conducta, llegando a conocer sin pretender conocer, llegando a comprender sin pretender comprender, llegando a aprehender sin pretenderlo. …”
    Libro electrónico
  7. 267
    por Yuan, Sarah Y.
    Publicado 2011
    “…Plasma leakage disturbs fluid homeostasis and impairs tissue oxygenation, a pathophysiological process contributing to multiple organ dysfunction associated with trauma, infection, metabolic disorder, and other forms of disease. …”
    Libro electrónico
  8. 268
    por Mateo Rodríguez, José Manuel
    Publicado 2008
    Tabla de Contenidos: “…-Los mecanismos de regulación y la homeostasis de los geosistemas.; 9.2- La resiliencia y la estabilidad de los paisajes:; 9.3.…”
    Libro electrónico
  9. 269
    Publicado 2013
    Tabla de Contenidos: “…INTRODUCCIÓN; 2.2. CONCEPTO DE HOMEOSTASIS…”
    Libro electrónico
  10. 270
    por Carrillo Esper, Raul
    Publicado 2009
    “…Un aspecto fundamental que hay que considerar en la enfermedad critica es la homeostasis endocrina, de la que depende un sinnumero de vias de senalizacion intracelulares e intercelulares que se traducen en la sincronizacion de funciones metabolicas y organicas…”
    Libro electrónico
  11. 271
    por Rao, Jaladanki N.
    Publicado 2011
    “…The mammalian gastrointestinal mucosa is a rapidly self-renewing tissue in the body, and its homeostasis is preserved through the strict regulation of epithelial cell proliferation, growth arrest, and apoptosis. …”
    Libro electrónico
  12. 272
    Publicado 2003
    Tabla de Contenidos: “…Consciousness, Emotional Self-Regulation and the Brain -- Editorial page -- Title page -- LCC page -- Table of contents -- List of contributors -- Introduction -- Overview of chapter contents -- Acknowledgements -- Emotion self-regulation -- Introduction -- Components of emotion -- Gross' process model of emotion self-regulation -- Theoretical and empirical challenges in measuring antecedent emotion self-regulation -- Izard's multi-system model of emotion generation -- Implications of Izard's multi-system model of emotion activation for emotion self-regulation -- Emotion self-regulation and emotional homeostasis -- A sequential model of emotion self-regulation -- Control regulation -- Emotional dissociation -- Enhancing and suppressing emotional expression -- Anticipatory regulation -- Exploratory regulation -- Emotion self-regulation as a contextually-bound process -- Summary and future research directions -- References -- Temperament and emotional regulation -- Introduction -- Theoretical and empirical approaches to emotional regulation -- Emotional regulation in early childhood: Normative development -- Temperament and early emotional development -- Temperament and the development of emotional regulation -- Direct effects of temperament -- Moderated effects of temperament -- Mediational effects of temperament -- Future directions in the study of temperament and emotional regulation -- Summary -- Acknowledgements -- References -- Emotion dysregulation and psychopathology -- Introduction -- Functionalist theory -- Emotion regulation and dysregulation -- What gets regulated in emotion regulation? …”
    Libro electrónico
  13. 273
    Publicado 2020
    Tabla de Contenidos: “…DISTRIBUCIÓN DEL AGUA EN EL CUERPO -- 1.3. LA DESEADA HOMEOSTASIS HÍDRICO-ELECTROLÍTICA -- 1.4. INGRESOS DE AGUA -- 1.5. …”
    Libro electrónico
  14. 274
    Publicado 2018
    Tabla de Contenidos: “…Intro -- Cover -- Title Page -- Copyright Page -- Preface -- Acknowledgments -- Contents -- Chapter 1 THE HUMAN BODY: AN ORIENTATION -- An Overview of Anatomy and Physiology -- Levels of Structural Organization -- Maintaining Life -- Homeostasis -- The Language of Anatomy -- At the Clinic -- The Finale: Multiple Choice -- Chapter 2 BASIC CHEMISTRY -- Concepts of Matter and Energy -- Composition of Matter -- Molecules, Chemical Bonds, and Chemical Reactions -- Biochemistry: The Composition of Living Matter -- Incredible Journey: A Visualization Exercise for Biochemistry -- At the Clinic -- The Finale: Multiple Choice -- Chapter 3 CELLS AND TISSUES -- Cells -- Overview -- Anatomy of a Generalized Cell -- Cell Physiology -- Body Tissues -- Tissue Repair -- Developmental Aspects of Cells and Tissues -- Incredible Journey: A Visualization Exercise for the Cell -- At the Clinic -- The Finale: Multiple Choice -- Chapter 4 SKIN AND BODY MEMBRANES -- Classification of Body Membranes -- Integumentary System (Skin) -- Basic Functions of the Skin -- Basic Structure of the Skin -- Appendages of the Skin -- Homeostatic Imbalances of the Skin -- Developmental Aspects of the Skin and Body Membranes -- Incredible Journey: A Visualization Exercise for the Skin -- At the Clinic -- The Finale: Multiple Choice -- Chapter 5 THE SKELETAL SYSTEM -- Bones-An Overview -- Axial Skeleton -- Skull -- Vertebral Column -- Thoracic Cage -- Appendicular Skeleton -- Bone Fractures -- Joints -- Homeostatic Imbalances of Bones and Joints -- Developmental Aspects of the Skeleton -- Incredible Journey: A Visualization Exercise for the Skeletal System -- At the Clinic -- The Finale: Multiple Choice -- Chapter 6 THE MUSCULAR SYSTEM -- Overview of Muscle Tissues -- Microscopic Anatomy of Skeletal Muscle -- Skeletal Muscle Activity -- Muscle Movements, Types, and Names…”
    Libro electrónico
  15. 275
    Publicado 2007
    Tabla de Contenidos:
    Libro electrónico
  16. 276
    Publicado 2021
    Tabla de Contenidos: “…DiPiro -- Chapter 73: Acid-Base Disorders -- Chapter 74: Acute Kidney Injury -- Chapter 75: Chronic Kidney Disease -- Chapter 76: Electrolyte Homeostasis -- SECTION 15: RESPIRATORY DISORDERS Edited by Terry L. …”
    Libro electrónico
  17. 277
    por Institute of Medicine (U.S.).
    Publicado 1990
    Tabla de Contenidos: “…PREVIOUS RECOMMENDATIONS FROM PROFESSIONAL ORGANIZATIONS -- USAGE PATTERNS -- SCOPE OF REPORT -- UNDERLYING ASSUMPTIONS -- ORGANIZATION OF THE REPORT -- References -- 12 Assessment of Nutrient Needs -- NUTRIENT HOMEOSTASIS -- ASSESSMENT OF NUTRITIONAL STATUS -- ASSESSMENT OF NUTRIENT NEEDS -- ASSESSMENT OF DIETARY ADEQUACY -- RECOMMENDED DIETARY ALLOWANCES -- FACTORS INFLUENCING NUTRIENT REQUIREMENTS AND THE NEED FOR SUPPLEMENTATION -- NUTRIENT-NUTRIENT INTERACTIONS -- NUTRIENT TOXICITIES -- SUMMARY -- CLINICAL IMPLICATIONS -- References -- 13 Dietary Intake During Pregnancy -- AVAILABLE DIETARY DATA -- LIMITATIONS OF THE DATA -- NUTRIENT INTAKES OF PREGNANT WOMEN -- ASSOCIATIONS OF MATERNAL CHARACTERISTICS WITH NUTRIENT INTAKE DURING PREGNANCY -- Ethnic Background -- Socioeconomic and Demographic Factors -- WIC Participation -- Maternal Age -- SUMMARY -- References -- 14 Iron Nutrition During Pregnancy -- IMPORTANCE OF IRON DURING PREGNANCY -- Definition of Anemia and Iron Deficiency -- Effects of Maternal Anemia on the Newborn -- PREVALENCE OF IRON DEFICIENCY -- SPECIAL GROUPS AT RISK -- Socioeconomic Indicators -- Racial and Ethnic Backgrounds -- Adolescents -- IRON METABOLISM IN RELATION TO PREGNANCY -- Essential and Storage Iron -- Iron Loss -- Regulation of Body Iron -- Absorption of Nonheme and Heme Iron from Food -- Intestinal Regulation -- IRON REQUIREMENTS FOR PREGNANCY -- CHARACTERISTICS OF IRON DEFICIENCY DURING PREGNANCY -- Laboratory Characteristics of Impaired Hemoglobin Production -- Physiologic Changes in Hemoglobin Concentration and Criteria for Anemia During Pregnancy -- ABSORPTION OF IRON SUPPLEMENTS -- Absorption from a Test Dose -- Therapeutic Trials -- How Much Extra Iron Must Be Absorbed from a Supplement in Order To Prevent Iron Deficiency? …”
    Libro electrónico
  18. 278
    Publicado 2021
    Tabla de Contenidos: “…4.1 The RtcA RNA Cyclase -- 4.2 The RtcB RNA Ligase -- 4.3 The RtcB RNA Ligase in Prokaryotes -- 4.4 The RtcB RNA Ligase in Metazoans -- 5 The Bacterial Rtc RNA Repair System -- 5.1 Diversity of the rtc Operon in Bacteria -- 5.2 The RtcR Transcriptional Regulator and Its CARF Domain -- 5.3 Expression and Function of the Rtc System in Bacteria -- 6 Conclusions -- References -- Part II: RNA Damage and Repair in Eukaryotes -- Oxidative and Nitrative RNA Modifications in Plants -- 1 Introduction -- 2 Oxidative Modifications of RNA in Plants -- 3 Nitrative Modifications of RNA in Plants -- 4 Conclusions -- References -- The Role of Ribonucleases in RNA Damage, Inactivation and Degradation -- 1 Introduction -- 2 Quality Control Mechanisms to Manage Damaged RNA -- 3 Ribosome Quality Control (RQC) and No-Go-Decay (NGD) -- 4 Xrn1, a 5'-3' Exoribonuclease, and the Exosome, a 3'-5' Exoribonuclease Complex -- 5 Cue2 as a Potential NGD Endonuclease -- 6 The Role of Ribonucleases in Targeting and Inactivating Host and Foreign RNA -- 7 Regulatory RNase 1 (Regnase-1) -- 8 NEDD4-Binding Protein 1 (N4BP1) -- 9 Zinc Finger Antiviral Protein (ZAP) and Co-Factor Nucleases -- 10 ZAP and KHNYN -- 11 ZAP and the Exosome Complex -- 12 The 2',5'-Oligoadenylate Synthetase (OAS)/RNAse L System -- 13 Conclusion -- References -- Cytoplasmic mRNA Recapping: An Unexpected Form of RNA Repair -- 1 The Nature of the Cap and Its Role in mRNA Metabolism -- 2 Decapping and 5' Decay -- 3 Early Evidence for Uncapped and Recapped Transcripts -- 4 The Discovery of Cytoplasmic Capping -- 5 The Proteins of the Cytoplasmic Capping Complex -- 6 Cap Homeostasis as an RNA Repair Mechanism That Modulates Translation, mRNA Decay, and Translational Control -- 7 Is There a Relationship Between Recapped Ends and CAGE Tags? …”
    Libro electrónico
  19. 279
    Publicado 2013
    Tabla de Contenidos: “…Summary -- Introduction -- 1.1 Protein aggregation and amyloidoses -- 1.1.1 Mechanisms of amyloid fibril formation -- 1.1.2 Oligomer structural polymorphism: fibrillar and prefibrillar oligomers -- 1.1.3 Oligomer toxicity: common mechanism of pathogenesis -- 1.1.4 Amyloid formation is an inherent property of polypeptide chains: functional amyloid and disease unreleated amyloid -- 1.2 HypF-N: model protein of amyloid aggregation unrelated to disease -- 1.2.1 Function, structure and aggregation of HypF-N -- 1.2.2 HypF-N protofibrils interact with cell membranes originating a cytotoxic cascade -- 1.2.3 A causative link between the structure of HypF-N oligomers and their ability to cause cellular dysfunction -- 1.3 Alzheimer's disease -- 1.3.1 The Alzheimer phenotype -- 1.3.2 The elaborate processing of APP -- 1.3.3 The genetics of Alzheimer's disease -- 1.3.4 Peripheral cells as a tool to identify and test hypotheses on AD pathophysiology -- 1.3.5 Adult neurogenesis and stem cell technology for AD -- 1.4 Cholesterol and gangliosides in the central nervous system (CNS) -- 1.4.1 Brain cholesterol metabolism -- 1.4.2 Ganglioside metabolism -- 1.4.3 Lipid rafts -- 1.4.4 Role of cholesterol in AD -- 1.4.5 Role of gangliosides in AD -- 1.5 Aim of the study -- Materials & Methods -- 2.1 Materials -- 2.1.1 Chemicals -- 2.1.2 Fluorescent probes -- 2.1.3 Peptides and aggregation protocols -- 2.2 Cell cultures -- 2.3 Methods -- 2.3.1 Separation processes -- 2.3.2 Differentiation of human mesenchymal stromal cells -- 2.3.3 Modulation of membrane cholesterol levels -- 2.3.4 Modulation of membrane GM1 levels -- 2.3.5 Cholesterol content measurements -- 2.3.6 GM1 content measurements -- 2.3.7 Cell exposure to peptide aggregates -- 2.3.8 Analysis of aggregate interaction with the cells -- 2.3.9 Analysis of aggregate interaction with GM1 -- 2.3.10 Analysis of aggregate internalisation -- 2.3.11 Analysis of membrane permeability -- 2.3.12 Analysis of cytosolic Ca2+ dyshomeostasis -- 2.3.13 Evaluation of ROS production -- 2.3.14 Analysis of lipid peroxidation -- 2.3.15 Cytotoxicity assay and cell death analysis: apoptotic and necrotic markers -- 2.3.16 Steady-state fluorescence anisotropy -- 2.3.17 Atomic force microscopy (AFM) -- 2.3.18 Measurements of the fluorescence intensities -- 2.3.19 Statistical analysis -- Results -- 3.1 Results I -- 3.1.1 A protective role for lipid raft cholesterol against amyloidinduced membrane damage in human neuroblastoma cells -- 3.1.2 Aß42 oligomer binding to the cell surface and its cytotoxic effect are modulated by membrane cholesterol content -- 3.1.3 Aß42 oligomers colocalize with lipid rafts -- 3.1.4 Isolation and characterization of DRMs -- 3.1.5 Effects of ADDLs on lipid raft structural order -- 3.1.6 AFM imaging of supported DRMs purified from cells exposed to ADDLs -- 3.2 Results II -- 3.2.1 Lipid rafts mediate amyloid-induced calcium dyshomeostasis and oxidative stress in Alzheimer's disease -- 3.2.2 Lipid rafts are primary interaction sites for Aß42 oligomers at the plasma membrane -- 3.2.3 Cholesterol and GM1 mediate Aß42 accumulation at the plasma membrane -- 3.2.4 Cholesterol and GM1 mediate Ca2+ dyshomeostasis and extensive membrane permeabilization induced by Aß42 oligomers -- 3.2.5 GM1 modulates lipid peroxidation and cytotoxicity induced by Aß42 oligomers -- 3.2.6 GM1 mediates Aß42-induced Ca2+ dyshomeostasis, lipid peroxidation and cytotoxicity in rat cortical neurons -- 3.3 Results III -- 3.3.1 Membrane lipid composition and its physicochemical properties define cell vulnerability to aberrant protein oligomers -- 3.3.2 Membrane cholesterol content modulates oligomer cytotoxicity -- 3.3.3 Membrane cholesterol modulates oligomer-induced alteration of intracellular Ca2+ homeostasis and ROS levels -- 3.3.4 Cholesterol levels modulate membrane permeability to the oligomers -- 3.3.5 Membrane GM1 affects the cytotoxic and permeabilizing effects of HypF-N oligomers -- 3.3.6 GM1, rather than cholesterol, plays a dominant role in oligomer cytotoxicity and membrane permeability -- 3.4 Results IV -- 3.4.1 Neuronal differentiation of human mesenchymal stromal cells increases their resistance to Aß42 aggregate toxicity -- 3.4.2 Neuronal differentiation of hMSCs results in reduced levels of membrane GM1 -- 3.4.3 Neuronal differentiation of hMSCs reduces the interaction of Aß42 oligomers with the cell surface -- 3.4.4 Neuronal differentiation of hMSCs reduces Aß42 oligomerinduced intracellular Ca2+ dyshomeostasis and oxidative stress -- 3.4.5 Neuronal differentiation of hMSCs increases cell resistance to Aß42 aggregates Discussion -- 4.1 A protective role for lipid raft cholesterol against amyloid-induced membrane damage in human neuroblastoma cells -- 4.2 Lipid rafts mediate amyloid-induced calcium dyshomeostasis and membrane permeabilization in Alzheimer's fibroblasts -- 4.3 Membrane lipid composition and its physicochemical properties define cell vulnerability to aberrant protein oligomers -- 4.4 Neuronal differentiation of human mesenchymal stromal cells increases their resistance to Aß42 aggregate toxicity -- 4.5 Concluding remarks -- Abbreviations -- References…”
    Libro electrónico
  20. 280
    Publicado 2016
    Tabla de Contenidos: “…Overview of Violations and Noncompliance -- Key Points -- 7.1 Human error -- Models of Human Error -- The Skills, Rules, Knowledge Framework -- Slips, Lapses, and Mistakes -- Human Information Processing Model -- Model of Situational Awareness -- Human Errors in the Context of a Flawed System -- Prevalence of Human Error -- Performance Shaping Factors -- Human Limits and Susceptibility to Bias -- Potential Solutions for Managing Human Error -- Summary: Human Error -- Key Points -- References -- 7.2 Intentional noncompliance -- Recognizing Intentional Noncompliance -- Tools and Methods for Analyzing Noncompliant Behaviors -- Work Compatibility Model -- ABC Model -- Theory of Planned Behavior -- The Links Between Noncompliance and Safety Culture -- Risk Homeostasis and Safety Noncompliance -- Actions to Reduce Intentional Noncompliances -- Summary: Intentional Noncompliance -- Key Points -- References -- References -- 8 Human factors in incident investigation -- List of Abbreviations -- The Investigation Process -- Key Stages of an Investigation -- Investigation Methods -- Advantages of Mainstream Methods -- Disadvantages of Mainstream Methods -- Choice of Method -- Including Human Factors Within Existing Investigation Methods -- Human Factors Considerations for Investigators -- Key Qualities of Investigators -- Interviewing Skills -- Cognitive Bias in the Investigation Process -- Managing Investigation Capability -- Proactive Application of Human Factors Analysis -- Summary: Human Factors in Incident Investigation -- Key Points -- References -- III. …”
    Libro electrónico