BOOK
Hemoperfusion, Plasmaperfusion And Other Clinical Uses Of General, Biospecific, Immuno And Leucocyte Adsorbents
Chang Thomas Ming Swi | Endo Yoshihiro | Nikolaev Volodymyr G
(2017)
Additional Information
Book Details
Abstract
Written by 30 worldwide leading scientists, experts and medical doctors, this comprehensive book provides a broad, multi-disciplinary overview on hemoperfusion. The research of the subject was started by TMS Chang — the pioneer and inventor of microcapsules who is well known as the 'the Father of Microcapsules.' The book presents the numerous recent developments in this field. A series of tailor-made, toxin removing and cell separating adsorbents or microcapsules with unique properties have been designed, prepared and produced for use in the treatment of diseases such as autoimmune disease, drug over-dose, acute inflammation, etc., in which ordinary medical treatments shows little or no efficacy. Various modalities of hemoperfusion treatments and results are described to provide readers with up-to-date information on the highly interdisciplinary field of hemoperfusion.
Table of Contents
Section Title | Page | Action | Price |
---|---|---|---|
Contents | v | ||
I. Introduction | 1 | ||
Chapter 1 First Design and Clinical Use in Patients of Surface Modified Sorbent Hemoperfusion Based on Artificial Cells for Poisoning, Kidney Failure, Liver Failure and Immunology | 3 | ||
1. Introduction | 3 | ||
1.1. A Brief Historical Overview | 3 | ||
1.2. Basic Principle of Surface Modifications Based on the Principle of Artificial Cells | 5 | ||
1.3. Clinical Trials | 7 | ||
1.4. Treatment of Patients with Severe Accidental or Suicidal Poisoning | 8 | ||
1.5. Hemoperfusion for the Removal of Unwanted or Toxic Substances from Blood in Other Conditions Including Terminal Renal Failure, Liver Failure and Immunology | 9 | ||
1.6. Treatment of Patients with Terminal Kidney Failure | 9 | ||
1.7. Treatment of Patients with Hepatic Coma | 10 | ||
1.8. Immunoadsorbent and Specific Absorbents | 10 | ||
2. Detailed Analysis of the Principle of Artificial Cells in Surface Modification for Adsorbent Hemoperfusion | 11 | ||
2.1. Permeability and Transport Characteristics | 11 | ||
2.2. Experimental Analysis | 13 | ||
2.3. Artificial Cells Containing Activated Charcoal in Hemoperfusion | 14 | ||
2.4. Device Configuration | 16 | ||
2.5. Effects on Embolism | 17 | ||
2.6. Effects of Hemoperfusion on Platelets | 17 | ||
2.7. Clearance of the ACAC Artificial Cell Artificial Kidney | 19 | ||
2.8. Improvements in Hydrodynamic | 20 | ||
3. Hemoperfusion in Acute Suicidal or Accidental Poisoning | 22 | ||
3.1. Preclinical Studies | 22 | ||
3.2. Criteria for Drug Removal | 22 | ||
3.3. Protocol for Clinical Trials | 22 | ||
3.4. Result of Clinical Trial on 11 Adult Patients with Suicidal or Accidental Drug Poisoning | 24 | ||
3.5. Time–dose Cytotoxicity Relationship: Pediatric Patient with Accidental Theophylline Overdose | 30 | ||
3.7. Routine Clinical Uses in Patients Around the World | 33 | ||
4. Hemoperfusion in Terminal Renal Failure Patients | 34 | ||
4.1. Rationales | 34 | ||
4.2. Hemoperfusion Alone Supplemented by Hemodialysis | 35 | ||
4.3. Hemoperfusion and Removal of Uremic Metabolites | 40 | ||
4.4. Conjoint Hemoperfusion-Hemodialysis | 40 | ||
4.5. Miniaturized Artificial Kidney-basedon Hemoperfusi on-ultrafiltration | 44 | ||
4.6. Urea Removal Systems | 46 | ||
5. Hemoperfusion in Liver Failure | 47 | ||
5.1. First Observation of Recovery of Consciousness in Hepatic Coma | 47 | ||
5.2. Results around the World on Effect of Hemoperfusion on Hepatic Coma | 48 | ||
5.3. Control Studies in Galactosamine-induced Hepatic Failure Rats | 49 | ||
6. Selective Adsorbents and Immunosorbents | 51 | ||
6.1. Surface Modification in Immunoadsorption | 51 | ||
6.2. Synthetic Immunosorbents for Blood Group | 53 | ||
6.3. Selective Synthetic Adsorbent for Endotoxin | 54 | ||
7. APPENDIX | 55 | ||
7.1. Detailed Procedures for the Laboratory Preparation of the ACAC Hemoperfusion Device | 55 | ||
7.2. Procedure for Hemoperfusion | 55 | ||
8. Useful Websites | 55 | ||
9. References | 56 | ||
II. General Adsorbents | 79 | ||
Chapter 2 Hemoperfusion | 81 | ||
1. The Progress of Hemoperfusion | 81 | ||
2. The Principle of Hemoperfusion | 83 | ||
3. The Hemoperfusion Device | 83 | ||
3.1. Adsorptive Agent and Coating Technique | 83 | ||
3.1.1. Activated charcoal | 83 | ||
3.1.2. Resin | 84 | ||
3.1.3. Microcapsule technique | 85 | ||
3.1.4. Hemoditoxifier | 85 | ||
3.2. Hemoperfusion Device | 86 | ||
4. The Clinical Application of Hemoperfusion | 87 | ||
4.1. Drug or Toxin Poisoned Patients | 87 | ||
4.1.1. Characteristics of hemoperfusion | 88 | ||
4.1.2. Factors which impact the curative effect of hemoperfusion | 88 | ||
4.1.3. Curative effect evaluation in clinical | 88 | ||
4.2. Uremia | 89 | ||
4.3. Hepatic Encephalopathy | 91 | ||
4.4. Immune Diseases | 92 | ||
4.5. The Application of Hemoperfusion in Combined Tumor Chemotherapy | 93 | ||
4.6. Infection-related Conditions | 93 | ||
4.7. Other Diseases | 94 | ||
References | 94 | ||
Chapter 3 Pathophysiology and Types of Poisoning | 97 | ||
1. Introduction | 97 | ||
2. Poisoning Profile | 98 | ||
3. Influencing Factors of Blood Purification in Poison Removal | 100 | ||
4. Technical Points of Hemoperfusion | 102 | ||
5. Detoxification by Hemoperfusion | 103 | ||
5.1. Organophosphate Poisoning | 103 | ||
5.2. Caffeine Poisoning | 104 | ||
5.3. Herbicide Poisoning | 105 | ||
5.4. Acetaminophen Poisoning | 105 | ||
5.5. Digoxin Poisoning | 106 | ||
6. Hemoperfusion-related Side Effects | 107 | ||
7. The Future of Detoxification by Hemoperfusion | 107 | ||
8. References | 107 | ||
Chapter 4 Application of Hemoperfusion in Artificial Kidney | 111 | ||
1. Introduction | 111 | ||
2. Kidney Diseases and Artificial Kidney Technology | 112 | ||
2.1. An Overview of Kidney Disease | 112 | ||
2.2. Kidney Disease and Uremic Toxins | 113 | ||
2.3. Treatment of Kidney Disease with Artificial Kidney | 116 | ||
3. Hemoperfusion and Combined Artificial Kidney | 117 | ||
3.1. The Emergence of the Combined Artificial Kidney | 117 | ||
3.2. The Development of the Combined Artificial Kidney | 118 | ||
3.3 Treatment Modalities of the Combined Artificial Kidney | 120 | ||
4. The Clinical Application of the Combined Artificial Kidney | 121 | ||
4.1. Removal of Uremic Toxins | 122 | ||
4.2. Improvements in Clinical Symptoms | 129 | ||
5. The Promise of Hemoperfusion and the Artificial Kidney | 134 | ||
References | 135 | ||
Chapter 5 Fundamental Knowledge of Hemoperfusion and Plasmaperfusion | 141 | ||
1. Introduction | 141 | ||
1.1. What is Hemoperfusion? | 141 | ||
1.2. Usage of Module | 141 | ||
2. Selection of a Module with High Blood Compatibility | 142 | ||
2.1. Prevention of Release of Harmful Substances from Adsorbent | 143 | ||
2.1.1. Minute particles | 143 | ||
2.1.2. Heavy metal ions | 143 | ||
2.1.3. Solvent and reagent | 144 | ||
2.2. Prevention of Thrombus Formation | 144 | ||
2.2.1. Mechanism of blood coagulation | 144 | ||
2.3. Prevention of Thrombus during Hemoperfusion | 147 | ||
2.4. Features of Individual Anticoagulants | 147 | ||
2.5. Activation of Complement | 150 | ||
2.6. Prevention of Hypotension by Module | 151 | ||
2.7. Biocompatible Polymer | 153 | ||
2.8. Suppression of Hemolysis | 156 | ||
2.9. Suppression of Loss of Useful Substances | 156 | ||
3. Filter-type Module | 157 | ||
3.1. Hollow Fiber Membrane | 157 | ||
3.2. Theory of Preparation of Hollow Fiber Membrane | 158 | ||
3.3. Usage of Hollow Fiber Membrane | 159 | ||
4. Adsorbent-type Module | 159 | ||
4.1. Adsorption Phenomenon | 159 | ||
4.2. Estimation of Adsorptive Capacity of Adsorbent | 161 | ||
4.3. Design of Adsorbent | 163 | ||
4.4. Adsorbent for a Molecule of Low Molecular Weight | 164 | ||
4.5. Adsorbent of Endotoxin from Gram-Negative Bacteria | 165 | ||
4.6. Adsorbent of Lipoprotein | 167 | ||
4.7. Adsorbent of Protein Relative to Autoimmune Diseases | 168 | ||
4.8. Adsorbent of White Blood Cells | 169 | ||
5. Future Perspective | 169 | ||
5.1. Adsorbent of Immunosuppressive Protein | 169 | ||
6. References | 170 | ||
Chapter 6 Hemoperfusion in Artificial Liver Support Systems | 173 | ||
1. Introduction | 173 | ||
1.1. Metabolic Functions of the Liver | 173 | ||
1.2. Definition of Liver Failure | 174 | ||
1.3. Development of Artificial Liver Support System | 175 | ||
1.4. The Role of Hemoperfusion in Artificial Liver Support System | 177 | ||
2. Toxic Substances Accumulating in the Blood of Patients with Liver Failure | 179 | ||
2.1. The Pathophysiological Mechanism of Liver Failure | 179 | ||
2.2. Toxin Accumulation during Liver Failure | 179 | ||
2.3. Cytokines Released during Liver Failure | 180 | ||
2.4. Endotoxemia during Liver Failure | 181 | ||
2.5. Characteristics of Toxic Substances in Hepatic Failure | 181 | ||
3. Adsorbent Materials used in Liver Failure Hemoperfusion | 182 | ||
4. Removal of Toxic Substances by Hemoperfusion in Liver Failure Patients | 183 | ||
4.1. Bilirubin Adsorption | 183 | ||
4.2. Endotoxin and Hemoperfusion | 184 | ||
4.3. Other Absorbent and Endotoxemia | 185 | ||
4.4. Hemoperfusion and Cytokines Removal | 186 | ||
4.5. Remove Amino Acids through Hemoperfusion | 187 | ||
5. Application of only Hemoperfusion in Liver Failure Patients | 188 | ||
5.1. Bilirubin Adsorption | 188 | ||
5.2. The Effect of Hemoperfusion on Hepatic Coma Patients | 190 | ||
6. Li Non-Bioartificial Liver (LiNBAL) | 192 | ||
6.1. The Development of LiNBAL | 192 | ||
6.2. Effect of LiNBAL on Patients with Severe Viral Hepatitis: A Study of 400 Cases | 194 | ||
6.3. Paired Plasma Exchange Filtration Adsorption | 195 | ||
6.4. LiNBAL Combined with Liver Transplantation in the Treatment of Patients with Acute-on-Chronic Liver Failure | 197 | ||
7. Mars System | 199 | ||
7.1. MARS System Composition | 199 | ||
7.2. MARS Complications and Countermeasures | 200 | ||
7.3. The Clinical Applications of MARS | 201 | ||
8. Prometheus System | 203 | ||
9. Simple Albumin Dialysis (SAD) | 206 | ||
10. Continued Albumin Purification System (CAPS) and Protein Adsorbent Recirculating System (PARS) | 206 | ||
11. Biologic-DT System and Biologic-DTPF System | 208 | ||
12. The Application of Hemoperfusion in Bioartificial Liver | 211 | ||
12.1. Hemoperfusion Enrolled as the Non-Biological Component | 212 | ||
12.2. Hemoperfusion Enrolled as the Biological Part | 214 | ||
References | 216 | ||
Chapter 7 Sorption Therapy with the Use of Activated Carbons: Effects on Regeneration of Organs and Tissues | 221 | ||
Summary | 221 | ||
1. Introduction | 222 | ||
2. Hemosorption (DHP) | 224 | ||
3. Enterosorption | 230 | ||
4. Application-Sorption Therapy | 236 | ||
Conclusion | 239 | ||
References | 240 | ||
Chapter 8 Adsorptive Treatment of Acute Radiation Sickness: Past Achievements and New Prospects | 245 | ||
Abstract | 245 | ||
Introduction | 246 | ||
Radiation Injuries Today | 247 | ||
Sorption Therapy of Acute Radiation Sickness | 248 | ||
Myelostimulating Cytokines for Treatment of Bone Marrow Syndrome in Acute Radiation Sickness | 250 | ||
Possibilities of Enterosorption upon Cytostatic Myelodepression | 251 | ||
Acknowledgements | 253 | ||
References | 253 | ||
III. Selective Adsorbents | 257 | ||
Chapter 9 Hemoperfusion Selective Removal | 259 | ||
References | 262 | ||
Chapter 10 Hemoperfusion Method for Removing Endotoxin | 265 | ||
1. Introduction | 265 | ||
2. Endotoxin and Septicemia | 266 | ||
3. Removal of Endotoxins by Adsorbents in Hemoperfusion | 269 | ||
3.1. Activated Charcoal and Resin Adsorbents | 269 | ||
3.2. Adsorbents with Polymyxin B and other Cations as Ligands | 270 | ||
3.3. Immunosorbent | 273 | ||
3.4. Adsorbents with Amino Acids and Small Peptide Molecules as Ligands | 274 | ||
3.5. Adsorbent with Supramolecular Compounds as the Ligand | 276 | ||
3.6. Adsorbents with Other Compounds as Ligands | 277 | ||
4. Conclusion | 278 | ||
References | 279 | ||
Chapter 11 Direct Hemoperfusion with b2-microglobulin Adsorption Column for Patients with End-stage Kidney Disease | 285 | ||
1. Introduction | 285 | ||
2. b2-microglobulin in Patients with Chronic Kidney Disease | 286 | ||
3. Dialysis-related Amyloidosis | 287 | ||
3.1. Dialysis-related Amyloidosis as One of Systemic Amyloidosis | 287 | ||
3.2 Clinical Characteristics of Dialysis-related Amyloidosis | 287 | ||
4. Motility | 289 | ||
5. Removal of β2-microgloblin with Blood Purification | 290 | ||
5.1. Overview | 290 | ||
5.2. b2-m Adsorption Column | 290 | ||
6. Conclusion | 294 | ||
References | 294 | ||
Chapter 12 Endotoxin Adsorption: Direct Hemoperfusion with a Polymyxin B-Immobilized Fiber Column (Toraymyxin) | 297 | ||
1. Introduction | 297 | ||
2. Development of Polymyxin B-Immobilized Fibers | 299 | ||
2.1. Polymyxin B-Immobilized Fibers | 299 | ||
2.2. Endotoxin Adsorption Capacity of Polymyxin B-Immobilized Fibers In Vitro | 300 | ||
2.3. Endotoxin Adsorption Capacity of Polymyxin B-Immobilized Fibers In Vivo | 302 | ||
3. Toraymyxin for Human Use | 303 | ||
3.1. Architecture and Specification of Toraymyxin | 303 | ||
3.2. Use of Toraymyxin in Hemoperfusion | 306 | ||
4. Clinical Efficacy of Toraymyxin Therapy for Endotoxemia and Septic Shock | 307 | ||
5. Mechanism of Favorable Effects of Toraymyxin Therapy in Sepsis | 312 | ||
5.1. Removal of Endotoxin | 312 | ||
5.2. Other Potential Mechanisms of Toraymyxin Therapy | 313 | ||
References | 315 | ||
Chapter 13 Polyvinyl Alcohol Adsorbent in Hemoperfusion | 319 | ||
1. Introduction | 319 | ||
2. PVA Synthesis and Characteristics | 320 | ||
2.1. PVA Synthesis | 320 | ||
2.2. Biocompatibility of PVA | 321 | ||
3. Applications in Hemoperfusion | 322 | ||
3.1. PVA Adsorbents for Bilirubin Removal | 322 | ||
3.2. PVA Adsorbents for TG and LDL Removal | 325 | ||
3.3. PVA Adsorbents for the Removal of other Endogenous Toxins | 330 | ||
4. Influencing Factors of PVA-based Adsorbent on Adsorption Performance | 332 | ||
1. Crosslinking Degree of Adsorbents | 332 | ||
2. Ligand Immobilized to Adsorbents | 333 | ||
3. Particle Size of Adsorbent | 335 | ||
4. Temperature | 337 | ||
References | 339 | ||
Chapter 14 Ion Exchange Resin in Hemoperfusion | 341 | ||
1. Introduction | 341 | ||
1.1. Ion Exchange Resin | 341 | ||
1.2. Basic Features of Ion Exchange Resin for Use in Hemoperfusion | 343 | ||
1.2.1. Exchange capacity | 343 | ||
1.2.2. Selectivity | 344 | ||
1.2.3. Porosity | 344 | ||
1.3. Hemoperfusion by Ion Exchange Resin | 344 | ||
2. Ion Exchange Resins in Hemoperfusion | 346 | ||
2.1. Ion Exchange Resins Used in Removing Ions and Drugs | 346 | ||
2.2. Ion Exchange Resin Used in Removing Bilirubin | 348 | ||
2.2.1. Ion exchange resin with quaternary aligand | 349 | ||
2.2.2. Ion exchange resin with amino ligand | 352 | ||
2.2.3. Ion exchange resin with amino acid ligand | 354 | ||
2.2.4. Ion exchange resin with guanidine ligand | 354 | ||
2.2.5. General discussion | 355 | ||
2.3. Ion Exchange Resin Used in Removing Low Density Lipoprotein (LDL)\r | 356 | ||
2.3.1. Ion exchange resin with heparin ligand | 356 | ||
2.3.2. Ion exchange resin with dextran sulfate or sulfuric acid ligand | 357 | ||
2.3.3. Ion exchange resin with polyacrylate or carboxyl ligand | 358 | ||
2.3.4. Ion exchange resin with phosphate ligand | 359 | ||
2.3.5. Ion exchange resin with amino acid ligand | 360 | ||
2.3.6. Ion exchange resin with amphiphilic ligand | 361 | ||
2.3.7. General discussion | 361 | ||
2.4. Ion Exchange Resin Used in Removing Endotoxin | 363 | ||
2.4.1. Ion exchange resin with polymyxin B ligand | 363 | ||
2.4.2. Ion exchange resin with amino acid ligand | 366 | ||
2.4.3. Ion exchange resin with other cationic or polycationicligand | 369 | ||
2.4.4. General discussion | 370 | ||
3. Mechanism and Features of Ion Exchange Resins in Hemoperfusion | 371 | ||
4. The Key Issues of Ion Exchange Resins in Hemoperfusion | 373 | ||
References | 374 | ||
Chapter 15 LDL Adsorption | 385 | ||
1. Introduction | 385 | ||
2. Method of LDL Selective Absorption | 386 | ||
3. Preventive Effects of LDL Apheresis on Atherosclerosis | 387 | ||
3.1. Mechanism of Preventive Effect on Atherosclerosis | 387 | ||
3.2. Clinical effect of LDL apheresis and therapeutical target LDLC level | 388 | ||
3.2.1. LDL apheresis in homozygous FH | 388 | ||
3.2.2. LDL apheresis in heterozygous FH | 391 | ||
3.2.3. LDL apheresis in PAD | 392 | ||
3.2.4. LDL apheresis in FSGS | 393 | ||
4. Conclusion | 393 | ||
References | 394 | ||
Chapter 16 Treatment of Metabolic Diseases by Hemoperfusion | 399 | ||
1. Introduction | 399 | ||
2. The Technical Characteristics of the Extracorporeal Lipid Purification Therapy | 400 | ||
2.1. Non-Selective | 400 | ||
2.1.1. Plasma exchange (PE) | 400 | ||
2.2. Semi-Selective | 400 | ||
2.2.1. Double filtration plasmapheresis therapy (DFPP) | 400 | ||
2.3. Highly Selective | 403 | ||
2.3.1. Immunosorbent assay (immunoadsorption, IA) | 403 | ||
2.3.2. Dextran sulfate cellulose adsorption, DSA | 405 | ||
2.3.3. Heparin mediated extracorporeal LDL precipitation system (HELP) (Seidel D et al., 1996): | 405 | ||
2.3.4. Direct adsorption of lipoprotein from whole blood (DALI) | 406 | ||
3. Evaluation of Extracorporeal Blood Lipid Purification Treatments | 408 | ||
4. Effect of Extracorporeal Blood Lipid Purification Treatment | 410 | ||
4.1. Regulate Plasma Lipids | 410 | ||
4.2. Improvement of Hemorheology | 412 | ||
4.3. Significant Decrease of Oxidative Stress and Inflammation | 413 | ||
4.4. Improvement of the Endothelial Function | 414 | ||
5. Clinical Application of Extracorporeal Blood Lipid Purification Treatments | 414 | ||
5.1. Indications (Bohl S et al., 2009; Schwartz J et al., 2013) | 414 | ||
5.1.1. Familial hyperlipidemia with high LDL levels | 414 | ||
5.1.2. Phytanic acid storage disease (Refsum disease) | 415 | ||
5.1.3. Acute ischemic vascular disease with lipid metabolism or microcirculation disorder | 415 | ||
5.1.4. Acute pancreatitis with severe disorders of lipid metabolism | 415 | ||
5.2. Clinical Applications | 415 | ||
5.2.1. Cardiovascular disease | 415 | ||
5.2.2. Acute ischemic stroke | 417 | ||
5.2.3. Acute occlusive arterial sclerosis | 420 | ||
5.2.4. Hormone resistance of nephritic syndrome | 420 | ||
5.2.5. Other diseases | 421 | ||
6. Adverse Reactions of Extracorporeal Lipid Purification Therapy | 422 | ||
6.1. Symptomatic Hypotension | 422 | ||
6.2. Allergic Reactions | 423 | ||
6.3. Fever and Sepsis | 423 | ||
6.4. Non-specific Reactions | 423 | ||
6.5. Hemolysis | 423 | ||
6.6. Anemia | 424 | ||
6.7. Puncture Site Hematoma | 424 | ||
6.8. Bleeding | 424 | ||
7. Contraindications of Lipid Separation Therapy | 424 | ||
8. Conclusion: Clinical Comparison of Vitro Blood Lipid Purification Treatment | 425 | ||
References | 426 | ||
Chapter 17 Cytokine Adsorbing Membrane: PMMA | 433 | ||
1. Introduction | 433 | ||
1.1. Development of the PMMA Membrane | 433 | ||
1.2. Features of the PMMA Membrane | 434 | ||
2. Development of Continuous Hemodiafiltration using a PMMA Membrane Hemofilter | 435 | ||
3. Cytokine Removal with PMMA Membrane | 436 | ||
3.1. Investigation in Clinical Cases | 436 | ||
3.2. In Vitro Study | 440 | ||
3.3. Mechanism of Cytokine Adsorption using PMMA Membrane | 442 | ||
4. Clinical Application of PMMA-CHDF | 443 | ||
4.1. Introduction of a Rapid Assay for IL-6 | 443 | ||
4.2. Efficacy on Severe Acute Pancreatitis (SAP) | 445 | ||
4.3. Efficacy on Severe Sepsis/Septic Shock | 445 | ||
5. Future Perspective | 448 | ||
References | 449 | ||
Chapter 18 Clinical Aspects of Biospecific Sorbents | 453 | ||
1. Introduction | 453 | ||
2. Biospecific Anti-Proteinase Hemosorbent in Treatment of Acute Destructive Pancreatitis | 454 | ||
3. Hemoperfusion in Treatment of IgE-dependent Pathology | 460 | ||
3.1. Efferent Methods in Complex Treatment of Septic Pathology | 463 | ||
References | 469 | ||
Chapter 19 Macroporous Polystyrene Adsorbent Resin and Its Application in Hemoperfusion | 471 | ||
1. Introduction | 471 | ||
1.1. History and Development of Polystyrene Adsorbent Resins | 473 | ||
2. Preparation and Properties of Macroporous Polystyrene Adsorbent Resin | 477 | ||
2.1. Preparation of Adsorbent Resin by Suspension Polymerization | 477 | ||
2.2. Post-crosslinking Preparation of Adsorbent Resin | 479 | ||
2.2.1. Friedel–Crafts crosslinking reaction of linear polystyrene | 481 | ||
2.2.1.1. Friedel–Crafts crosslinking reaction of Gel-type S-DVB copolymers | 481 | ||
2.2.1.2. Friedel–Crafts crosslinking of macroporous low crosslinking S-DVB copolymers | 482 | ||
2.2.1.3. Friedel–Crafts crosslinking of macroporous low crosslinking copolymers of S-DVB and polar monomers\r | 482 | ||
2.3. Parameters of Macroporous Polystyrene Network | 483 | ||
2.3.1. Specific surface area | 484 | ||
2.3.2. Pore size and its distribution | 484 | ||
2.4. Effect of Porogen | 484 | ||
2.4.1. Using good solvent as porogen (ν-induced syneresis) | 486 | ||
2.4.2. Using nonsolvent as porogen | 487 | ||
2.4.3. Using linear polymers as porogen | 487 | ||
2.4.4. Using oligomers as porogen | 488 | ||
2.5. Effect of Crosslinking Agent | 490 | ||
3. Application of Macroporous Polystyrene Adsorbent in Hemoperfusion | 495 | ||
3.1. Removal of Endogenous Toxins | 498 | ||
3.1.1. β2 Microglobulin | 498 | ||
3.1.2. Lysozyme | 500 | ||
3.1.3. Cytokines | 500 | ||
3.1.4. Bilirubin | 501 | ||
3.1.5. Low Density Lipoprotein (LDL) | 503 | ||
3.1.6. Bile acid | 503 | ||
3.2. Removal of the Exogenous Toxins | 507 | ||
References | 509 | ||
IV. Immunosorbent | 515 | ||
Chapter 20 Immunoadsorbent in Hemoperfusion | 517 | ||
1. Introduction | 517 | ||
1.1. Protein A as Ligand | 520 | ||
1.2. Tryptophane as Ligand | 522 | ||
1.3. Phenylanaline as Ligand | 523 | ||
1.4. DNA as Ligand | 524 | ||
1.5. Dextran Sulfate as Ligand | 531 | ||
1.6. Synthetic or Recombinant Peptide as Ligand | 532 | ||
1.7. LDL Antibody as Ligand | 534 | ||
1.8. Anti-HBs as Ligand | 535 | ||
1.9. Immunoglobulin as Ligand | 536 | ||
1.10. IgG as Ligand | 538 | ||
1.11. IgE Antibody as Ligand | 539 | ||
1.12. IgA as Ligand | 540 | ||
1.13. C1q as Ligand | 540 | ||
1.14. Heparin as Ligands | 541 | ||
1.15. Poly-L-Lysine as Ligand | 543 | ||
1.16. Polyanion as Ligand | 544 | ||
1.17. 4-Mercaptoethylpyridine as Ligand | 544 | ||
1.18. Cell Membrane Proteins as Ligand | 545 | ||
1.19. Avidin as Ligand for Cancer Therapy | 545 | ||
1.20. Receptor for AGE (RAGE) as Ligand | 546 | ||
1.21. scFv as Ligand | 546 | ||
1.22. Other Ligands | 548 | ||
2. Mechanism and Features of Immunoadsorbent | 548 | ||
2.1. Comparison of Surface Area for Small and Large-Size Particles | 551 | ||
2.2. Pore Size | 553 | ||
2.3. Chemical Structure | 554 | ||
2.4. Adsorption Kinetics | 554 | ||
2.5. Spacer Effect | 555 | ||
2.6. Diseases Treated with Immunoadsorbents | 556 | ||
3. General Discussions | 557 | ||
3.1. Perspectives of Immunoadsorbent | 557 | ||
3.2. Carriers | 557 | ||
3.3. Ligand | 560 | ||
3.4. Spacer | 565 | ||
3.5. Social and Economic Impact | 566 | ||
References | 568 | ||
Chapter 21 Natural Polysaccharide Adsorbent in Hemoperfusion | 583 | ||
1. Introduction | 583 | ||
2. Preparation, Activation and Evaluation of Natural Polysaccharide Adsorbent in Hemoperfusion | 585 | ||
2.1. Preparation and Activation of Agarose (Agarose/Agar) Beads | 585 | ||
2.1.1. Preparation of agarose (agarose/agar) beads | 585 | ||
2.1.2. Activation of agarose (agarose/agar) beads | 586 | ||
2.2. Preparation and Activation of Cellulosic Beads | 587 | ||
2.2.1. Preparation of cellulosic beads | 587 | ||
2.2.2. Activation of cellulose beads | 588 | ||
2.3. Preparation and Activation of Chitosan Beads | 589 | ||
2.3.1. Preparation of chitosan beads | 589 | ||
2.3.2. Activation of chitosan beads | 591 | ||
2.4. Preparation and Activation of Dextran Beads | 592 | ||
2.4.1. Preparation of dextran beads | 592 | ||
2.4.2. Activation of dextran beads | 593 | ||
2.5. Evaluation of Natural Polysaccharide Beads | 593 | ||
3. Typical Natural Polysaccharide Bioactive Bead Adsorbent for use in Blood Purification | 594 | ||
3.1. Agarose/Agar-based Adsorbent in Hemoperfusion | 594 | ||
3.1.1. Agarose bead-based adsorbent for the treatment of IgA nephropathy | 594 | ||
3.1.2. Agar bead-based adsorbent for the treatment of rheumatoid arthritis | 596 | ||
3.1.3. Agar bead-based IgE adsorbents for the treatment of bronchial asthma | 596 | ||
3.1.4. Agar bead-based adsorbents for the removal of TNF-α | 601 | ||
3.1.5. Agar bead-based adsorbents for the removal of LDL | 602 | ||
3.2. Cellulosic Adsorbent in Hemoperfusion | 602 | ||
3.2.1. Cellulosic adsorbents for removing low-density lipoprotein-cholesterol (LDL-C) | 602 | ||
3.2.2. Cellulosic adsorbents for the removal of rheumatoid factors | 606 | ||
3.2.3. Cellulosic adsorbents for removal of endotoxin | 608 | ||
3.2.4. Cellulosic adsorbents for the removal of anti-DNA antibodies in the treatment of systematic lupus erythematosus | 610 | ||
3.2.5. Cellulosic adsorbent for the treatment of myasthenia gravis | 612 | ||
3.2.6. Cellulosic adsorbents for the treatment of IgA nephropathy | 614 | ||
3.2.7. Cellulosic adsorbents for the removal of bilirubin | 616 | ||
3.3. Chitosan-based Adsorbents in Hemoperfusion | 616 | ||
3.3.1. Chitosan bead-based adsorbent for the treatment of MODS | 616 | ||
3.3.2. Chitosan bead-based adsorbents for the removal of LDL | 619 | ||
3.3.3. Chitosan bead-based adsorbents for the removal of bilirubin | 620 | ||
3.4. Dextran-based Adsorbents in Hemoperfusion | 620 | ||
3.4.1. Dextran-based adsorbent for the removal of LDL | 620 | ||
4. Conclusion and Future Perspectives | 622 | ||
References | 622 | ||
Chapter 22 Adsorbents for the Treatment of Autoimmune Diseases through Hemoperfusion | 629 | ||
1. Introduction | 629 | ||
2. Commercial Adsorbents for Autoimmune Diseases | 631 | ||
2.1. Non-Selective Adsorbents | 631 | ||
2.2. Semi-Selective Adsorbents | 633 | ||
2.3. Highly-selective Adsorbents | 636 | ||
3. Recent Developments on Adsorbents for Autoimmune Diseases | 637 | ||
3.1. Adsorbents Using Phema Membrane and Cryogel as Matrices | 637 | ||
3.2. Adsorbents Using Mep As Ligand | 639 | ||
4. Perspectives | 644 | ||
References | 644 | ||
Chapter 23 Treatment of Dermatonosus by Hemoperfusion | 649 | ||
1. Psoriasis | 649 | ||
1.1. Pathogenesis of Psoriasis | 650 | ||
1.1.1. Genes associated with psoriasis | 650 | ||
1.1.2. Environmental factors | 651 | ||
1.1.3. Viral infection | 652 | ||
1.1.4. Neovascularization | 653 | ||
1.1.5. Immunological pathogenesis of psoriasis | 653 | ||
1.1.5.1. The role of T cells in psoriatic lesions | 653 | ||
1.1.5.2. The interaction between T cells and KCs | 654 | ||
1.1.5.3. Dendritic cells | 655 | ||
1.1.5.4. Cytokine abnormalities in psoriasis | 656 | ||
1.1.5.5. Vascular endothelial cells, adhesion molecules and complements | 658 | ||
1.2. General Treatments of Psoriasis | 659 | ||
1.2.1. Ultraviolet (UV) light therapy | 659 | ||
1.2.2. Psoralen-Ultraviolet A (PUVA) therapy | 659 | ||
1.2.3. Topical treatments | 660 | ||
1.2.4. Methotrexate (MTX) | 660 | ||
1.2.5. Cyclosporine | 661 | ||
1.2.6. Alitretinoin | 661 | ||
1.2.7. Clinical application of combination therapy | 661 | ||
1.2.8. Strategies for antibody treatments for psoriasis | 661 | ||
1.2.8.1. Anti-CD4 antibody | 662 | ||
1.2.8.2. Anti-CD25 antibody | 662 | ||
1.2.8.3. Anti-tumor necrosis factor α (TNF-α) antibody | 663 | ||
1.2.8.4. CD11a antibody | 663 | ||
1.2.8.5. Anti-IL-8 antibody | 663 | ||
1.2.8.6. Anti-IL-12 antibody | 664 | ||
1.2.8.7. Anti-IL-6R antibody | 664 | ||
1.3. Hemadsorption Treatment of Psoriasis | 664 | ||
References | 673 | ||
2. Pemphigus | 678 | ||
2.1. Introduction | 678 | ||
2.2. Pathogenesis of Pemphigus | 679 | ||
2.2.1. The pemphigus antigen | 679 | ||
2.2.2. The pemphigus “clinical drift” phenomenon | 681 | ||
2.2.3. Protease and pemphigus | 681 | ||
2.2.4. Pemphigus and cell-mediated immunity | 682 | ||
2.3. The Diagnosis of Pemphigus | 685 | ||
2.4. General Treatment of Pemphigus | 687 | ||
24.1. Corticosteroids | 687 | ||
2.4.2. Other immunosuppressive drugs | 688 | ||
2.4.3. Intravenous immune globulin method | 690 | ||
2.4.4. Photochemical therapy and hematopoietic stem cell transplantation | 690 | ||
2.5. Circulative Clearing Therapy for Pemphigus | 691 | ||
2.5.1. Plasmapheresis | 691 | ||
2.5.2. Immunoadsorption therapy | 700 | ||
References | 707 | ||
Chapter 24 Use of Sorption-based Methods in Treatment of Asthma and Allergic Diseases\r | 715 | ||
Abstract | 715 | ||
1. Introduction: Types and Clinical Impact of Allergic Reactions | 716 | ||
1.1. Types of Allergic Reactions | 716 | ||
1.2. Allergic Diseases and Basic Principles of Their Treatment | 718 | ||
1.2.1. Pharmacotherapy of allergic diseases | 719 | ||
1.2.2. Allergen-specific immunotherapy | 721 | ||
2. Physical-Chemical Basis and Clinical Effects of Efferent Methods of Therapy | 721 | ||
2.1. Historical Perspective on Efferent Methods of Therapy in Russia | 721 | ||
2.2. Physical and Chemical Basis for Therapeutic Efficiency of Sorption-Based Methods of Therapy | 722 | ||
3. Our Clinical Experience in The Use of Sorption-based Methods in Treatment of Allergic Diseases | 725 | ||
3.1. Non-selective Hemosorption | 727 | ||
3.1.1. Clinical case no. 1 | 728 | ||
3.1.2. Clinical case no. 2 | 729 | ||
3.2. Selective Hamosorption | 733 | ||
3.2.1. Clinical case no. 3 | 736 | ||
3.2.2. Clinical case no. 4 | 736 | ||
3.3. Plasma Sorption | 739 | ||
3.4. Enterosorption | 740 | ||
3.5. Hemosorption Use in Treatment of Other Allergic Diseases | 740 | ||
3.6. Adverse Effects of Hemosorption | 740 | ||
3.7. General Considerations on the Use of Efferent Therapy in Treatment of Allergic Diseases | 742 | ||
Conclusions | 746 | ||
References | 746 | ||
Chapter 25 Immunoadsorption for Collagen and Rheumatic Diseases\r | 749 | ||
1. Introduction | 749 | ||
2. Indications and Target Conditions | 750 | ||
3. Types and Methods | 750 | ||
3.1. Phenylalanine Columns | 752 | ||
3.2. Dextran Sulfate Columns | 754 | ||
3.3. Protein A Columns | 755 | ||
3.4. Ig-Columns | 756 | ||
3.5. Gam-Columns | 756 | ||
4. Immunoadsorption Plasmapheresis to Treat Collagen and Rheumatic Diseases | 757 | ||
4.1. Rheumatoid Arthritis (RA) | 757 | ||
4.2. Systemic Lupus Erythematosus (SLE) | 758 | ||
5. Summary | 761 | ||
References | 762 | ||
Chapter 26 Treatment of Rheumatoid Arthritis by Hemoperfusion | 765 | ||
1. The Characteristics of Rheumatoid Arthritis (RA) | 765 | ||
1.1. Etiology and Pathogenesis | 766 | ||
1.2. Clinical Manifestation | 766 | ||
1.3. Diagnosis | 767 | ||
1.4. Treatment | 767 | ||
2. Terms and Technical Features of Hemoperfusion and General Efficacy on Rheumatic and Autoimmune Diseases | 768 | ||
2.1. The Term “Hemoperfusion” | 768 | ||
2.2. SPA Immunoadsorption | 769 | ||
3. Application of Hemoperfusion Therapies in Treating RA | 771 | ||
3.1. Staphylococcal Protein A (SPA) Immnoadsorption in Treating RA | 771 | ||
3.2. Other Immunoadsorbent Columns in Treating RA | 773 | ||
3.3. Other Plasmapheresis Techniques in Treating RA | 775 | ||
4. Complications of Hemoperfusion | 776 | ||
5. Conclusions | 778 | ||
References | 778 | ||
Chapter 27 Immunomodulator of Nervous System Disease | 781 | ||
1. Introduction | 781 | ||
2. Immunomodulation by Immunoadsorption Plasmapheresis | 782 | ||
3. Immunoadsorption in Myasthenia Gravis | 783 | ||
3.1. Immunoadsorption with IM-TR | 783 | ||
3.2. Immunoadsorption with Protein A | 785 | ||
3.3. Approaches to Specific Removal of Anti-Acetylcholine Receptor Antibodies in Myasthenia Gravis | 786 | ||
4. Immunoadsorption in Guillain-Barré Syndrome and Fisher’s Syndrome | 787 | ||
4.1. Immunoadsorption with IM-TR | 787 | ||
4.2. Immunoadsorption with Disialylgalactose Glycoconjugate | 789 | ||
5. Immunoadsorption in Chronic Inflammatory Demyelinating Polyradiculoneuropathy | 789 | ||
6. Immunoadsorption in Multiple Sclerosis | 790 | ||
7. Immunoadsorption in Neuromyelitis Optica | 791 | ||
8. Immunoadsorption in other Neurological Disorders | 793 | ||
8.1. Immunoadsorption in Acquired Neuromyotonia | 793 | ||
8.2. Immunoadsorption in Autoimmune Encephalitis | 793 | ||
8.3. Immunoadsorption in Paraneoplastic Syndromes | 794 | ||
References | 795 | ||
V. Selective Cell Removal | 801 | ||
Chapter 28 Leukocyte Apheresis Using Adsorbent | 803 | ||
References | 805 | ||
Chapter 29 White Blood Cell Adsorption: LCAP (Basic Aspect) | 807 | ||
1. Introduction | 807 | ||
2. Basic Principle of Leukocyte Apheresis with Microfiber Non-Woven Cloth\r | 809 | ||
3. Application of Leukocyte Removal Filters to Blood Transfusion | 811 | ||
4. CELLSORBA® System for Leukocyte Apheresis | 814 | ||
4.1. Types of CELLSORBA | 815 | ||
4.2. Basic Structure of CELLSORBA | 816 | ||
4.3. CELLSORBA CS-100 and CS-180S | 817 | ||
4.4. CELLSORBA-E Type (EX and EI) | 819 | ||
4.5. Efficacy and Safety of CELLSORBA | 821 | ||
4.5.1 Prevention of clogging by blood coagulation | 821 | ||
4.5.2. Inhibition of negative charge on the surface of fibers | 824 | ||
4.5.3. Adsorptivity of drug | 825 | ||
5. Extracorporeal System for CELLSORBA | 828 | ||
5.1 Plasauto-LC | 828 | ||
5.2 Plasauto-Σ | 830 | ||
6. Extension of the Technique to Separation of Targeted Materials by Antibody Fixation (Onodera et al., 1998) | 831 | ||
7. Conclusion | 832 | ||
References | 833 | ||
Chapter 30 Leukocytapheresis (LCAP) with Cellsorba Leukocyte Removal Filter Column as One Therapeutic Option for Inflammatory Bowel Disease | 835 | ||
1. Introduction | 835 | ||
2. The First Report for the Patients with LCAP (Non-Centrifugal Method) | 840 | ||
3. Overshoot Phenomenon for the Leukocyte Count after LCAP (Fig. 30.4) | 840 | ||
4. Prospective Multicenter Pilot Study for Crohn’s Disease using LCAP | 842 | ||
5. Multicenter Randomized Controlled Trial for the Treatment of Ulcerative Colitis with a Leukocytapheresis Column | 843 | ||
6. Leukocytapheresis in Ulcerative Colitis: Results of a Multicenter Double-Blind Prospective Case-Control Study with Sham Apheresis as Placebo Treatment\r | 843 | ||
7. Leukocytapheresis for Management of Fulminant Ulcerative Colitis with Toxic Megacolon\r | 845 | ||
8. A Large-Scale, Prospective, Observational Study of Leukocytapheresis for Ulcerative Colitis: Treatment Outcomes of 847 Patients in Clinical Practice | 846 | ||
9. Safety of Leukocytapheresis for Patients with UC ((Yokoyama et al., 2014; Nagase et al., 1998; Ashizuka et al., 2006; Muratov et al., 2010) | 846 | ||
10. Mechanism of LCAP Action | 847 | ||
11. Japanese Food “WASHOKU,” Traditional Dietary Cultures of the Japanese May Well Match Cytapheresis Treatment | 848 | ||
References | 849 | ||
Chapter 31 Adacolumn for Hemoperfusion to Deplete Inflammatory Leucocytes as an Alternative or Complementary to Drug Therapy in Patients with Immune Disorders: Basic Mechanisms and Concepts for Therapeutic Efficacy | 853 | ||
Abstract | 853 | ||
1. Introduction | 855 | ||
1.1. The Evolution of Apheresis as a Therapeutic Practice | 855 | ||
2. The Work Featured in this Chapter | 857 | ||
3. The Adacolumn Design Features | 858 | ||
4. The Perceptions that Inspired Development of the Adacolumn | 859 | ||
5. Target Cells for the Adacolumn GMA | 860 | ||
6. The Adacolumn Hemoperfusion System | 864 | ||
7. GMA Related Potential Immunomodulatory Observations | 866 | ||
8. Down-Modulation of the Chemokine Receptor CXCR3 | 869 | ||
9. Effect of GMA on Tissue Level of Myeloid Leucocytes | 869 | ||
10. The Incurable Nature of a Dysfunctioning Immune System | 872 | ||
11. The Logics of Therapeutic GMA in IBD Patients | 873 | ||
12. Effective Dosage of GMA in UC Patients | 874 | ||
13. GMA Responder and Non-Responder Features of IBD Patients | 876 | ||
14. Colonoscopic Features of GMA Responders and Non-Responders | 877 | ||
15. GMA to Suppress Clinical Relapse in IBD Patients | 879 | ||
16. GMA in other Diseases Involving Leucocytes | 880 | ||
16.1. Rheumatoid Arthritis | 880 | ||
16.2. Patients with HIV Infection | 881 | ||
16.3. Treatment of Pyoderma Gangrenosum and Psoriasis-Like Skin Lesions | 883 | ||
16.4. Hepatitis C Infection | 884 | ||
16.5. Behcet’s Disease | 885 | ||
17. Conclusions & Future Perspectives | 886 | ||
18. Acknowledgements | 888 | ||
List of Abbreviations used in this Chapter | 888 | ||
References | 889 | ||
Chapter 32 Efficacy Outcomes for Adacolumn Adsorptive Granulocyte and Monocyte Apheresis Applied as a Non-Pharmacologic Treatment Option in Patients with Inflammatory Bowel Disease | 901 | ||
Abstract | 901 | ||
1. Introduction | 903 | ||
2. GMA, Mechanisms of Action in Brief | 904 | ||
3. GMA Procedures | 905 | ||
4. GMA in the Treatment of Patients with UC | 905 | ||
4.1. The Existing Concept | 905 | ||
4.2. The Efficacy of GMA in UC Patients | 906 | ||
4.3. The Efficacy Outcomes for GMA Evaluated in a Retrospective Setting | 908 | ||
4.4. The Relationship between GMA Processed Blood Volume and Bodyweight | 913 | ||
4.5. GMA as Maintenance Therapy in UC Patients | 915 | ||
4.6. Factors Associated with Long-term Prognosis of UC patients Undergoing GMA | 916 | ||
5. GMA in the Treatment of Crohn’s Disease | 924 | ||
5.1. Background | 924 | ||
5.2. The Efficacy of GMA in CD Patients | 924 | ||
5.3. The Efficacy of GMA in a CD Case Complicated by Hepatitis B Virus | 925 | ||
6. Concluding Remarks | 928 | ||
Acknowledgements | 928 | ||
List of Abbreviations used in this Chapter | 928 | ||
References | 929 | ||
Chapter 33 Granulocyte and Monocyte Adsorption Apheresis (GMA) in Dermatology | 935 | ||
1. Introduction | 935 | ||
1.1. Neutrophils | 935 | ||
1.2. Pyoderma Gangrenosum | 936 | ||
1.3. Arthropathy Associated with Neutrophilic Dermatosis | 936 | ||
1.4. Granulocyte and Monocyte Adsorption Apheresis | 937 | ||
1.5. Assessment of the Therapeutic Efficacy of GMA in Pyoderma Gangrenosum | 937 | ||
1.6. Activated Neutrophils and Mac-1 | 939 | ||
2. Clinical Study of GMA for Skin Disorders and Related Arthropathy | 939 | ||
2.1. Patients | 939 | ||
2.2. GMA | 940 | ||
2.3. Clinical and Laboratory Evaluation | 941 | ||
2.4. Results of the Clinical Study | 942 | ||
2.4.1. Response of skin lesions to GMA | 942 | ||
2.4.2. Response of arthropathy to GMA | 943 | ||
2.4.3. Laboratory examinations | 945 | ||
2.4.4. Adverse events | 945 | ||
2.5. Conclusion of the Clinical Study | 945 | ||
3. Prospective and Multi-Center Study of GMA for Pustular Psoriasis | 945 | ||
3.1. Pustular Psoriasis | 945 | ||
3.2. Patients | 946 | ||
3.3. Determination of GPP Severity and Treatment Efficacy | 946 | ||
3.4. GMA Procedures | 948 | ||
3.5. Ethical Considerations | 948 | ||
3.6. Results of the Multi-Center Study | 949 | ||
3.6.1. Patients’ baseline demographic variables | 949 | ||
3.6.2. Study safety and patient compliance | 949 | ||
3.6.3. Efficacy outcomes | 950 | ||
3.7. Conclusion of the Multi-Center Study | 952 | ||
4. Conclusion and the Future of GMA for Skin Diseases | 953 | ||
References | 953 | ||
Chapter 34 New White Blood Cell Adsorbent: Immunopure | 957 | ||
Abstract | 957 | ||
1. Introduction | 958 | ||
1.1. Platelets as Therapeutic Targets in Inflammatory Bowel Disease | 958 | ||
1.2. Adsorptive Cytapheresis — Current Situation | 962 | ||
1.3. Immunopure Adsorber | 963 | ||
2. Basic Aspects | 965 | ||
2.1. In Vitro Circulation Experiments — Setup | 965 | ||
2.2. In Vitro Circulation Experiments — Results | 966 | ||
2.3. Adsorptive-Type Cytapheresis in a Pig Model | 976 | ||
3. Clinical Aspects | 984 | ||
3.1. Introduction | 984 | ||
3.2. Uncontrolled Studies — Results | 985 | ||
3.3. Controlled Studies | 992 | ||
Acknowledgements | 993 | ||
Abbreviations | 993 | ||
References | 994 | ||
Index | 999 |