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  • Electronic books.  (3)
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  • 1
    Online Resource
    Online Resource
    Paris :Springer Paris,
    Keywords: Neovascularization. ; Electronic books.
    Description / Table of Contents: This book reviews recent advances in understanding of the molecular and cellular mechanisms of angiogenesis, with a focus on how to integrate these observations into the context of developmental, post-natal and pathological neovascularization.
    Type of Medium: Online Resource
    Pages: 1 online resource (501 pages)
    Edition: 1st ed.
    ISBN: 9782817804668
    DDC: 612.13
    Language: English
    Note: Intro -- Contents -- Angiogenesis: An Ever-Challenging Research Field -- Acknowledgment -- References -- Part I: Angiogenesis During Embryonic Development -- Chapter 1: Emergence of Endothelial Cells During Vascular Development -- 1.1 Introduction -- 1.2 Vasculogenesis -- 1.3 Hemangioblast -- 1.4 Remodeling of the Primary Capillary Plexus into Arteries and Veins -- 1.5 Role of Hemodynamic Forces in Remodeling -- 1.6 Guidance of Capillaries by Endothelial Tip Cells -- 1.7 Circulating Endothelial Cells in the Embryo -- 1.8 Perspectives -- References -- Chapter 2: Lymphatic Vascular Morphogenesis -- 2.1 Early Steps of Lymphatic Vascular Development -- 2.1.1 Lymphatic Endothelial Cell Specification -- 2.1.2 Lymphatic Vessel Sprouting from the Veins -- 2.1.3 Separation of Lymphatic and Blood Vasculatures -- 2.1.4 Non-venous Origins of Lymphatic Vasculature -- 2.2 Lymphatic Vessel Remodelling -- 2.2.1 Sprouting and Growth of Lymphatic Vessels -- 2.2.2 Regulation of Lymphatic Endothelial Cell-Cell Junctions -- 2.2.3 Valve Morphogenesis -- 2.2.4 Smooth Muscle Cells Recruitment to Collecting Lymphatic Vessels -- 2.3 Lymphatic Vasculature and Diseases -- 2.3.1 Lymphoedema -- 2.3.2 Inflammation -- 2.3.3 Tumour Metastasis -- 2.3.4 Lipid Absorption -- 2.4 Concluding Remarks -- References -- Part II: The Physiological Angiogenic Signal: Cellular and Molecular Mechanisms -- Chapter 3: Finding New Partnerships: The Function of Individual Extracellular Receptor Domains in Angiogenic Signalling by VEGF Receptors -- 3.1 Biology of VEGF Family Growth Factors and Their Receptors -- 3.1.1 Introduction to VEGF -- 3.1.2 Structure-Function Relationship of VEGF and VEGF Receptors -- 3.1.2.1 Receptor Specificity of VEGFs -- 3.1.2.2 Structural Analysis of VEGF Binding to VEGFR-1, VEGFR-2 and VEGFR-3 -- 3.1.2.3 Activation of VEGF Receptors. , 3.2 VEGFR-2 as Part of a Signalling Platform -- 3.2.1 Neuropilins (NRPs) -- 3.2.2 Ephrin-B2 -- 3.2.3 VE-Cadherin -- 3.2.4 Dopamine Receptor D2 -- 3.2.5 CD146 -- 3.2.6 CD44 -- 3.3 Extracellular Components of the VEGF/VEGFR Signalling Cascade as Targets for Therapy and Functional Inhibition -- 3.3.1 VEGF/VEGFRs in Disease -- 3.3.2 VEGF/VEGFRs as Targets in Therapeutic Inhibition -- 3.3.2.1 VEGF-Neutralising Agents -- 3.3.2.2 Anti-VEGFR-1 Agents -- 3.3.2.3 Anti-VEGFR-2 D23 Agents -- 3.3.2.4 Anti-VEGFR-2 D4-7 Agents -- 3.3.3 Limitations to VEGF/VEGFR Targeted Therapy -- 3.3.4 Outlook and Conclusions -- References -- Chapter 4: Wnt/Frizzled Signaling in the Vasculature -- 4.1 Introduction -- 4.1.1 Wnt Signal Transduction -- 4.1.1.1 The Canonical Pathway: Wnt/β-Catenin -- 4.1.1.2 The Planar Cell Polarity Pathway -- 4.1.1.3 The Calcium-Mediated Pathway -- 4.1.2 Wnt Inhibitors and Modulators -- 4.1.3 Atypical Receptors Kinases -- 4.2 Role of the Wnt/Frizzled in Vascular Development -- 4.2.1 Evidence of Wnt/Fzd Expression and Signaling in Endothelial Cells -- 4.2.2 Placental Development -- 4.2.3 Postnatal Retinal Angiogenesis -- 4.2.4 Brain Vasculature -- 4.3 Role of Wnt Regulation in Vascular Pathology -- 4.3.1 Choroidal Neovascularization and Oxygen-Induced Retinopathy -- 4.3.2 Wound Healing -- 4.3.3 Hind Limb and Cardiac Ischemia -- 4.4 Conclusion -- 4.5 Online Databases -- References -- Chapter 5: BMP9, BMP10, and ALK1: An Emerging Vascular Signaling Pathway with Therapeutic Applications -- 5.1 Bone Morphogenetic Proteins (BMPs) -- 5.2 BMP9/BMP10/ALK1 Signaling Complex -- 5.3 The Role of BMP9 and BMP10 in Vascular Development -- 5.3.1 Knowledge from Human Vascular Diseases -- 5.3.2 Knowledge from Animal Models: Mice and Zebrafish -- 5.3.2.1 Mice -- 5.3.2.2 Zebrafish -- 5.3.3 In Vitro Roles of BMP9 and BMP10 in Endothelial Cells. , 5.4 Therapeutic Applications of the BMP9/BMP10/ALK1 Signaling Pathway -- 5.4.1 HHT -- 5.4.2 BMP9, BMP10, and ALK1 as Biomarkers in Cancer -- 5.4.3 Therapeutic Applications of the BMP9/BMP10/ALK1 Signaling Pathway in Tumor Angiogenesis -- 5.4.3.1 ALK1 Extracellular Domain (ALK1 ECD) -- 5.4.3.2 Anti-ALK1 Antibody (PF-03446962) -- 5.4.3.3 Anti-endoglin Antibody (TRC105) -- 5.5 Conclusions and Perspectives -- References -- Chapter 6: Apelin Signaling in Retinal Angiogenesis -- 6.1 Apelin Signaling -- 6.1.1 Receptor Discovery and Isolation of the Endogenous Ligand -- 6.1.2 Multiple Active Ligands and Receptor Heterodimers -- 6.1.3 Gene Transcription and Mode of Signaling -- 6.1.4 Physiological Functions of Apelin Signaling -- 6.2 The Retina -- 6.2.1 Anatomy and Development -- 6.2.2 Astrocyte: The Key Mediator of Neuron/Endothelial Cell Interactions -- 6.2.3 Developmental Patterning of Retinal Vessels -- 6.2.4 Subpopulations of Endothelial Cells -- 6.3 Apelin Signaling and Formation of Retinal Vessels -- 6.3.1 Apelin: A Bona Fide Angiogenic Factor -- 6.3.2 Vascular Phenotype of Apelin or APJ Gene Invalidation -- 6.3.3 Temporal Expression of Apelin Signaling Coincides with the Angiogenic Phase -- 6.3.4 Apelin Receptor Gene: An Early Marker of the Venous Phenotype -- 6.3.5 Receptor and Ligand Gene as Potential Markers of Tip or Stalk Phenotype -- 6.3.6 Apelin Signaling as a Linker Between VEGF-Secreting Astrocytes and Proliferating Stalk Cells -- 6.3.7 Apelin Signaling Regulates LIF Secretion and Controls Astrocyte Maturation -- 6.4 Apelin Signaling and Pathological Retinal Angiogenesis -- 6.4.1 The Retinopathy of Prematurity -- 6.4.2 Diabetic Retinopathy -- 6.4.3 Telangiectatic Vessels -- 6.5 Clinical Implications -- References -- Chapter 7: Emerging Role of the Two Related Basic Helix-Loop-Helix Proteins TAL1 and LYL1 in Angiogenesis -- 7.1 Introduction. , 7.2 Properties of LYL1 and TAL1 -- 7.3 Hematopoietic Functions of Tal1, Lyl1, and Lmo2 -- 7.4 Tal1 and Lmo2 Are Required for Cardiovascular Development -- 7.5 TAL1 Activity Is Required in the Early Steps of Angiogenesis -- 7.5.1 TAL1 and LMO2 Initiate Tubulogenesis Through VE-Cadherin Upregulation -- 7.5.2 TAL1-LMO2 Complexes Controls Angiopoietin-2 Expression -- 7.6 LYL1 Is Required for the Maturation of New Blood Vessels -- 7.6.1 Lyl1 Deficiency Leads to Increased Angiogenic Responses -- 7.6.2 LYL1 Contributes to Vessel Maturation and Stabilization -- 7.7 Coordinated Activity of TAL1 and LYL1 to Regulate Angiogenic Processes -- References -- Part III: Hypoxia, Ischemia and Angiogenesis -- Chapter 8: Hypoxia and Extracellular Matrix Remodeling -- 8.1 Hypoxia Induction of Angiogenesis -- 8.2 Establishment of the Vascular BM -- 8.3 Extracellular Matrix Proteolytic Degradation -- 8.4 Regulation of Hypoxia-Induced Growth Factor Sequestration in the Extracellular Matrix -- 8.5 Matricellular Proteins -- 8.5.1 Group A Thrombospondins -- 8.5.2 Group B Thrombospondins -- 8.6 Conclusion -- References -- Chapter 9: Sphingosine-1-Phosphate in Hypoxic Signaling -- 9.1 Hypoxia Significance and Impact on Clinical Outcome -- 9.2 The Hypoxia-Inducible Factors -- 9.3 Sphingosine 1-Phosphate Metabolism in Cancer -- 9.4 Sphingosine 1-Phosphate Signaling in Hypoxia -- 9.5 Sphingosine 1-Phosphate Signaling as a Target for Anti- hypoxic Strategy -- 9.6 Concluding Remarks -- References -- Chapter 10: Reciprocal Crosstalk Between Angiogenesis and Metabolism -- 10.1 Regulation of Angiogenesis by Oxygen and Metabolism -- 10.1.1 PHDs and HIF: The Molecular Players of Angiogenesis Are Regulated by Oxygen and Metabolic Intermediates -- 10.1.2 Modulators of HIF and PHDs by Nonhypoxic Stimuli -- 10.1.2.1 TCA Cycle and Other Metabolic Intermediates. , 10.1.2.2 Reactive Oxygen Species -- 10.1.3 Modulation of Angiogenesis by Metabolic Regulators -- 10.2 EC Metabolism Impacts Vessel Sprouting -- 10.2.1 EC Survival and Functions Are Dependent on Glycolysis -- 10.2.2 Metabolic Changes During Vascular Sprouting -- 10.3 Regulation of Metabolism by Angiogenesis -- Bibliography -- Chapter 11: Endothelial Progenitor Cells and Cardiovascular Ischemic Diseases: Characterization, Functions, and Potential Clinical Applications -- 11.1 Introduction -- 11.2 Cultured EPC -- 11.3 Recruitment of EPCs to the Ischemic Tissue -- 11.3.1 CXCL12/CXCR4 -- 11.3.2 Integrins and Selectins -- 11.3.3 Hemostatic Partners, Thrombospondin, and Thrombin Interaction with EPCs -- 11.3.4 Other Factors -- 11.4 Mechanisms of EPC-Related Effects on Postischemic Revascularization -- 11.4.1 Differentiation into Endothelial Cells -- 11.4.2 Paracrine Effects -- 11.4.3 Interaction with the Host Environment -- 11.5 EPCs as Diagnostic and Prognostic Tools -- 11.5.1 EPCs as Biomarkers of Cardiovascular Diseases -- 11.5.1.1 EPCs and Cardiovascular Risk Factors -- 11.5.1.2 EPCs and the Prevalence of CVDs -- 11.5.2 Are EPCs a Useful Prognostic Factor for Cardiovascular Diseases? -- 11.6 EPCs as Therapeutic Tools -- 11.6.1 Adult Stem/Progenitor Cells -- 11.6.2 Alternative Sources of EPCs -- 11.6.2.1 Embryonic Stem Cells (ESCs) -- 11.6.2.2 Induced Pluripotent Stem Cells (iPSCs) -- 11.6.2.3 Local Source of Stem/Progenitor Cells -- 11.7 Conclusion -- References -- Part IV: Tumor Angiogenesis -- Chapter 12: Endothelial Cell Reactions to Oxygen: Implications for Cancer -- 12.1 Overview of Oxygen-Mediated Pathways -- 12.2 Hypoxia-Inducible Factors Mediate Cellular Oxygen Signaling -- 12.3 The Function of Prolyl Hydroxylase Domain Proteins and Factor Inhibiting HIF as Oxygen Sensors. , 12.4 Role of Oxygen Signaling in Physiological and Pathophysiological Angiogenesis.
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  • 2
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (153 pages)
    Edition: 1st ed.
    ISBN: 9788412661675
    Language: Spanish
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  • 3
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (28 pages)
    Edition: 1st ed.
    ISBN: 9782346046713
    DDC: 500
    Language: French
    Note: Intro -- À propos de Collection XIX -- Titre -- CONFÉRENCE DE M. LOUIS BOSCH - Professeur de Mathématiques au Collège -- CONFÉRENCE DE M. ÉMILE PAGÈS - Professeur de Philosophie an Collège -- Note au lecteur -- Page de titre de l'édition imprimée -- Copyright.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 189 (1997), S. 81-89 
    ISSN: 1573-5036
    Keywords: methodology ; minirhizotron ; model ; root system
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In order to help design experiments with minirhizotrons or interpret data from such experiments, a modelling approach is a valuable tool to complement empirical approaches. The general principle of this modelling approach is to calculate and to study the part of a theoretical root system that is intersected by passes through a virtual minirhizotron tube (modelled here as a cylinder). Various outputs can be calculated from this part of the root system, and related to the surrounding root system which is perfectly known, since it has been simulated and stored in a data structure. Therefore, the method involves two levels of modelling that are presented and discussed: the root system architecture of a crop, and the observations that can be achieved with minirhizotron tubes. Illustrations of the method are presented to study the effect of several factors on the rooting depth curves, and to show how images may be calculated to mimic what can actually be viewed from inside the tube. These first results show that the maximum rooting depth curves, as virtually observed in the minirhizotron tube, present large variations and strongly underestimate the maximum rooting depth of the modelled root system (up to 60 cm in average). The underestimation is still more critical when the radius of the tube is lower than 3 cm, and when the tube is close to the vertical (angle lower than 0.2 rad). The use of the 0.9 quantile instead of the average value, for each of the observation dates, leads to a better estimation of the maximum rooting depth.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1573-5036
    Keywords: architecture ; model ; root map ; root profile ; root system ; soil bulk density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Differences between observed and simulated vertical root maps were studied in an attempt to evaluate the predictive ability of a simulation model of root system architecture under field conditions on mature plants, and to identify avenues for improvement. Some methodological problems associated with root mapping in the field are considered with a sensitivity analysis. Comparisons were made on a maize crop (early maturing hybrid F1 cultivar ‘Dea’) 15 days after silking. Four vertical root maps, perpendicular to the row and midway between two successive plants, were observed. Simulated root maps for different locations along the row showed essentially the same pattern, attesting of an approximately two-dimensional distribution of the roots in such a crop. Simulation of the intesection of roots with thin layers (thickness from 0 to 20 mm) instead of a perfect plane allowed us to assess effects due to the roughness of actual trench walls, and possible artefacts in the observation of root intersections. The simulated root profiles were very sensitive to this thickness, especially in the 0–5 mm range, in both average values, and overall shape. Actual data were close to the 3 mm thick simulations. This value seems plausible under our field conditions. Differences between simulated and actual root maps were shown to be mostly accounted for by the variations in soil bulk density. Thus, this environmental parameter appears as the most important one to include into the model for improving its predictions.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-5036
    Keywords: maize ; model ; root architecture ; root intersection ; root length ; stochastic geometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The spatial distribution of root length density (RLD) is important because it affects water and nutrient uptake. It is difficult to obtain reliable estimates of RLD because root systems are very variable and heterogeneous. We identified systematic trends, clustering, and anisotropy as geometrical properties of root systems, and studied their consequences for the sampling and observation of roots. We determined the degree of clustering by comparing the coefficient of variation of a simulated root system with that of a Boolean model. We also present an alternative theoretical derivation of the relation between RLD and root intersection density (RID) based on the theory of random processes of fibres. We show how systematic trends, clustering and anisotropy affect the theoretical relation between RLD and RID, and the consequences this has for measurement of RID in the field. We simulated the root systems of one hundred maize crops grown for a thermal time of 600 K d, and analysed the distribution of RLD and root intersection density RID on regular grids of locations throughout the simulated root systems. Systematic trends were most important in the surface layers, decreasing with depth. Clustering and anisotropy both increased with depth. Roots at depth had a bimodal distribution of root orientation, causing changes in the ratio of RLD/RID. The close proximity of the emerging lateral roots and the parent axis caused clustering which increased the coefficient of variation.
    Type of Medium: Electronic Resource
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  • 7
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    In:  http://aquaticcommons.org/id/eprint/8536 | 424 | 2012-03-17 07:59:49 | 8536 | Centre de Recherches Océanographiques, Côte d'Ivoire
    Publication Date: 2021-07-03
    Description: Details are presented of a bacteriological study in Ebrié Lagoon (Abidjan-Côte d'Ivoire) conducted during Oct-Dec 1974. Sampling sites are shown, and estimated and confirmed values for coliforms are given. The significance of the values obtained is briefly discussed, but further important factors, such as meteorological conditions and state of the sea, need clarification before definite conclusions can be made.
    Keywords: Biology ; Ecology ; Environment ; Pollution ; Côte d'Ivoire ; Lagune Ebrié ; lagoons ; bacteria ; microbial contamination
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 97-101
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  • 8
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    In:  http://aquaticcommons.org/id/eprint/7950 | 424 | 2012-03-07 15:32:53 | 7950 | Centre de Recherches Océanographiques, Côte d'Ivoire
    Publication Date: 2021-06-26
    Description: The total coliforms, fecal coliforms and fecal streptococci were counted over 1 year at 33 stations in the Ebrié Lagoon near Abidjan (Ivory Coast). Most of the waters show high numbers of bacteria, (D category of the American standards). For the sea-beaches, high numbers of fecal germs are found where the human population is abundant.
    Keywords: Environment ; Health ; Pollution ; Côte d'Ivoire ; Lagune Ebrié ; Abidjan ; bacteria ; coloforms ; germs ; streptococci
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 43-50
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/7491 | 424 | 2012-01-01 08:38:01 | 7491 | Centre de Recherches Océanographiques, Côte d'Ivoire
    Publication Date: 2021-07-03
    Description: Total CO2 of brackish water (Ebrié lagoon) is measured with a simple method: degassing and trapping CO2 in NaOh solution, the conductivity of which is a function of the trapped CO2 quantity. A relation CO2 versus salinity is deduced; it is nearly the same as the one deduced from CO2 measurements performed from alkalinity. Dissolved organic C is evaluated with a CHN analyser by evaporating 0.5 ml of acidified sample. Variation coefficient is near 10% for the lagoon values.
    Keywords: Ecology ; Environment ; Côte d'Ivoire ; organic carbon ; brackish water ; data analysis
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 27-36
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