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Molecular, Genetic, And Cellular Advances In Cerebrovascular Diseases

Molecular, Genetic, And Cellular Advances In Cerebrovascular Diseases

Su Hua | Lawton Michael T

(2017)

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Book Details

Table of Contents

Section Title Page Action Price
Contents vii
Preface v
1. Imaging in Cerebrovascular Disease 1
1.1 Imaging of the Arterial and Venous Lumen 2
1.1.1 CT angiography (CTA/CTV ) 2
1.1.2 MR angiography (MRA/MRV ) 4
1.1.3 Catheter-based digital subtraction angiography 5
1.2 Dynamic Imaging of Blood Flow 7
1.3 Intracranial Vessel Wall Imaging 10
1.4 Imaging of Parenchymal Physiology 12
1.5 Anatomic Brain Imaging 17
1.6 Summary 20
Acknowledgments 20
References 21
2. Cell Mechanisms and Clinical Targets in Stroke 25
2.1 Neuroprotection 25
2.2 Reperfusion 26
2.3 Neurovascular Unit 27
2.4 Biphasic Penumbra 28
2.5 Cofactors and Comorbidities 29
2.6 Translational Opportunities 30
2.6.1 Stroke genetics 30
2.6.2 Remote conditioning 31
2.7 Summary 31
References 32
3. Neural Repair for Cerebrovascular Diseases 35
3.1 Current Therapies 36
3.2 Spontaneous Recovery from Stroke 36
3.3 Therapies to Promote Neural Repair 38
3.3.1 Growth factors 38
3.3.2 Monoaminergic drugs 40
3.3.2.1 Dopamine 41
3.3.2.2 Serotonin 41
3.3.2.3 Norepinephrine 42
3.3.2.4 Other drugs 43
3.3.3 Traditional and alternative medicines 43
3.3.4 Cell-based therapies 44
3.3.5 Other therapies 48
3.3.6 Brain stimulation 49
3.4 Principles of Neural Repair After Stroke 50
3.4.1 Time-sensitive 50
3.4.2 Experience-dependent 51
3.4.3 Patient stratification 51
3.4.4 Modality-specific measures 52
3.4.5 Brain organization 53
Acknowledgments 53
References 53
4. Brain AVM: Current Treatments and Challenges 69
4.1 Management 70
4.1.1 Observation 70
4.1.2 Microsurgical resection 70
4.1.3 Stereotactic radiosurgery 75
4.1.4 Endovascular embolization 75
4.2 Challenges in the Treatment of Brain AVMs 77
4.2.1 Unruptured AVMs 78
4.2.2 High-grade AVMs 78
References 79
5. Animal Models and Prospective Therapeutic Targets for Brain Arteriovenous Malformation 83
5.1 The Development of bAVM Models 83
5.1.1 Hemodynamic models 84
5.1.1.1 Carotid-jugular fistulae models 84
5.1.1.2 Rete mirabile models 85
5.1.2 Genetic models 85
5.1.2.1 Mutation of HHT causative genes 85
5.1.2.2 Zebrafish model 86
5.1.2.3 Mouse models 86
5.1.2.3.1 Alk1 or Eng knockout 86
5.1.2.3.2 Alk1 or Eng conditional knockout 87
5.1.2.3.3 Angiogenic stimulation 87
5.1.2.3.4 Adult onset bAVM mouse models 88
5.1.2.3.4.1 Brain focal Alk1 or Eng homozygous deletion plus angiogenic\rstimulation 88
5.1.2.3.4.2 Conditional deletion of Alk1 or Eng globally plus brain\rfocal angiogenic stimulation 89
5.1.2.3.4.3 Endothelial Alk1 gene deletion plus brain angiogenic\rstimulation 90
5.1.2.3.5 Developmental models 91
5.1.2.4.6 SMAD4 mutation 92
5.1.2.3.7 Other genetic bAVM mouse models 93
5.1.2.3.7.1 Mutation of matrix Gla protein (Mgp) 93
5.1.2.3.7.2 Notch gain or loss of function 93
5.1.2.3.7.3 Rbpj mutation 94
5.1.2.3.8 Integrin b8 (Itgb8) mutant 94
5.1.3 Future models 95
5.2 Knowledge Gained from Animal Models Regarding\rAVM Pathogenesis 95
5.2.1 Molecular pathways 95
5.2.1.1 TGF 95
5.2.1.2 Notch 96
5.2.1.3 RASA1 97
5.2.2 Loss of function of the normal allele (2nd hit) 97
5.2.2.1 Modifier genes 98
5.2.2.2 Angiogenesis 99
5.2.2.3 Endothelial gene mutation 100
5.2.2.4 Vascular integrity 100
5.2.2.5 Inflammation and other environmental factors 101
5.2.2.6 BM-derived cells 102
5.2.3 Therapeutic development 103
5.2.3.1 Anti-angiogenesis 103
5.2.3.2 Anti-inflammation 105
5.2.3.3 Improvement of vascular integrity 107
5.2.3.4 Bone marrow or bone marrow-derived monocyte transfusion 108
5.2.3.5 Promising drugs not tested for bAVM 109
5.3 Summary 110
Acknowledgments 111
References 111
6. Biology of Brain Aneurysms 127
6.1 Histopathology of Normal Intracranial Arteries\rand Aneurysms 128
6.2 Aneurysm Pathogenesis 128
6.3 Macrophage Infiltration in Aneurysms 129
6.4 Matrix Metalloproteinases in Aneurysms 130
6.5 Mast Cells in Aneurysms 130
6.6 Pharmacologic Treatments Targeting Inflammation 131
6.6.1 Statins 131
6.6.2 Peroxisome proliferator-activated receptor gamma\ragonists 132
6.6.3 Renin–angiotensin system 132
6.7 Conclusion 132
References 133
7. Intracranial Aneurysms: Imaging, Hemodynamics, and Remodeling 137
7.1 Origin and History of Intracranial Aneurysms 138
7.2 Treatment Options 140
7.3 Geometric Morphology of Intracranial Aneurysms 141
7.4 In vivo Imaging of the Lumen of Intracranial Aneurysms 143
7.5 In vivo Imaging of the Vessel Wall and the Velocity Field 148
7.6 Computational Fluid Dynamics 149
7.7 Image-based Monitoring of Cerebral Aneurysms 153
7.8 Relationship of Aneurysmal Changes to Hemodynamics 156
7.9 Summary 158
Acknowledgments 159
References 159
8. Recent Advances in CADASIL Research 169
8.1 Discovery 170
8.2 Epidemiology 171
8.3 Pathology and Pathogenesis 172
8.3.1 Unique features of genetic defects 172
8.3.2 Pathology 173
8.3.3 Pathogenesis 175
8.3.3.1 Cerebral vasculature dysfunction 175
8.3.3.2 Impaired N3ECD processing in VSMCs and ECs 177
8.3.3.3 GOM deposition and impaired biological functions 179
8.4 Clinical Syndromes and Neuroimaging Features 180
8.4.1 Clinical syndromes 180
8.4.1.1 Migraine with aura 181
8.4.1.2 Recurrent ischemic strokes 181
8.4.1.3 Mood disturbance and apathy 181
8.4.1.4 Cognitive impairment and dementia 182
8.4.2 Neuroimaging features 182
8.5 Treatment 183
8.6 Conclusion 184
Acknowledgments 185
References 185
9. Dural Fistula 191
9.1 Definition 191
9.2 Epidemiology 192
9.3 Anatomy 194
9.4 Pathophysiology 195
9.4.1 Anatomy 195
9.4.2 Hemodynamic 196
9.4.3 Basic science 197
9.4.4 Environmental factors 199
9.4.5 Summary: Pathophysiology 199
9.5 Natural History 200
9.5.1 Classification 200
9.5.2 Prognostic risk stratification; angioarchitecture 201
9.5.3 Prognostic risk stratification; clinical presentation 202
9.5.4 Prognostic risk stratification: clinical outcomes 204
9.5.5 Summary: Natural history 204
9.6 Clinical Presentation 205
9.6.1 Summary: Clinical presentation 209
9.7 Diagnosis 209
9.7.1 Overview 209
9.7.2 Computed tomography 210
9.7.3 Magnetic resonance 210
9.7.4 Adjuvant MR techniques 213
9.7.5 Digital subtraction angiography 215
9.7.6 Summary: Diagnosis 217
9.8 Treatment 218
9.8.1 Overview 218
9.8.2 Endovascular 218
9.8.3 Transarterial 219
9.8.4 Transvenous 219
9.9 Embolic Agents 220
9.10 Anatomic Considerations 222
9.11 Follow-up 224
9.12 Treatment 225
9.12.1 Surgery 225
9.12.2 Radiosurgery 226
9.12.3 Pediatric 226
9.12.4 Alternative therapies and research 227
9.13 Conclusion 228
References 229
10. Interventional Therapies for Cerebrovascular Diseases 249
10.1 Acute Ischemic Stroke 249
10.2 Atherosclerotic Cerebrovascular Disease—Extracranial\rCarotid Disease 255
10.2.1 Management 257
10.2.1.1 Conservative 257
10.2.1.2 Surgical treatment 257
10.2.1.3 Carotid angioplasty and stenting 258
10.2.1.4 Evidence from the literature for carotid stenting 258
10.3 Arteriovenous Malformations 262
10.3.1 Natural history 262
10.3.2 Role of catheter angiography 263
10.3.3 AVM treatment 263
10.3.4 Embolic agents 266
10.3.5 Technique 268
10.4 Intracranial Aneurysms 269
10.4.1 Ruptured aneurysms 269
10.4.2 Unruptured aneurysms 270
Acknowledgments 275
References 275
11. Stem Cell-mediated Biobridge: Crossing the Great Divide Between Bench and Clinic in Translating Cell Therapy for Stroke 285
11.1 Benefits of Stem Cell Treatment in Stroke 286
11.2 Secondary Cell Death in Stroke as a Therapeutic\rTarget for Stem Cell Transplantation 286
11.3 Inciting the Self-regenerative Mechanism in Stroke 287
11.4 Regenerative Medicine Circumvents the Restricted\rTherapeutic Window for Stroke 288
11.5 Stem Mobilization as Standalone and in\rCombination Therapy 289
11.5.1 Directing stem cells under the influence of drugs 289
11.5.2 Nourishing stem cells in a microenvironment favorable for regeneration 290
11.6 Multitude of Options, but Transplantable Stem Cells Need to be Identified 291
11.7 Safety of MSCs is Only Half the Story, with their\rClinical Efficacy Unproven 292
11.8 Biobridge: Stem Cell-paved Path Between Endogenous\rNeurogenic Niche and Remote Injured Brain Areas 294
11.9 Translational Caveats of Biobridge Formation\rfrom Bench to Clinic 297
11.10 Outstanding Issues Relevant to Stem Cell\rTherapy in Stroke 298
11.11 Conclusion 299
Acknowledgments 299
References 300
Index 309