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Monthly Archives: January 2012
Stem cells for dogs? New pain management therapy works for pets – Video
Posted: January 31, 2012 at 2:10 am
26-11-2011 11:06 SAN ANTONIO -- The healing power of stem cells is now helping dogs in pain. Vets are excited about this new therapy that's making a big difference for South Texans' beloved pets. Oscar is an 11-year-old Australian Terrier, an agility competitor that suffered from osteoarthritis, impacting his usual exuberant nature. "He was starting to really slow down and he was starting to suffer," said Oscar's owner, Judy Larson of San Antonio. Instead of medications that provide only marginal relief and create side effects, Larson turned to the Perrin/410 Animal Hospital for help. Doctors performed a new procedure called Adipose Stem Cell Therapy. "We treat the fat, process it, activate it, and then inject it back into the animal the same day," explained veterinarian Dr. Bryan Stuckey. The procedure takes about four hours. Doctors first harvest fat tissue from the abdomen. Then, they process it and activate the stem cells. Injections back into the joint promote regeneration of the damaged areas in the bone, cartilage, ligaments and tendons "And with this, there is no side effect," Stuckey said. "There's no harmful side effect. It's from the animal itself. It's injected back in so there is no donor involved." Pets start to show improvement in two weeks, and continue to get better over the next two to three months. "It was time going backwards," Larson stated. "You know, his eyes cleared up. He started to grow hair again. His energy level went back up. His appetite. It was like getting ...
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Stemcell therapy for pets – Mi Mascota – Video
Posted: January 31, 2012 at 2:10 am
13-12-2011 22:16 Dr. Marta Sanchez, Animal Health and Rehab Center, Miami, discusses the use of stemcell therapy for you pets
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Stemcell therapy for pets - Mi Mascota - Video
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Amazing Stem Cell Therapy Results | Before
Posted: January 31, 2012 at 2:10 am
16-12-2011 15:12 This is a compilation of a commercial teaser and two separate stories that Local 6 Orlando did on Val-U-Vet and Stem Cell Therapy.
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Amazing Stem Cell Therapy Results | Before
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Alzheimer Disease – New Drugs, Markets and Companies
Posted: January 31, 2012 at 2:10 am
NEW YORK , Jan. 3, 2012 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue:
Alzheimer disease - New drugs, markets and companies
Summary
Alzheimer's disease remains a challenge in management. With nearly 8 million sufferers from this condition in the seven major markets of the world and anticipated increases in the future. Considerable research is in progress to understand the pathomechanism of the disease and find a cure. The only drugs approved currently are acetylcholinesterase inhibitors but they do not correct the basic pathology of the disease, beta amyloid deposits and neurofibrillary tangles. Several new approaches emphasize neuroprotection as well.
Early diagnosis of Alzheimer's disease is an important first step in management. Several biomarkers in cerebrospinal fluid, blood and urine can detect the disease. They provide a valuable aid to the clinical examination and neuropsychological testing which are the main diagnostic methods supplemented by brain imaging. Genotyping, particularly of ApoE gene alleles is also useful in the evaluation of cases and planning management.
The current management of Alzheimer's disease is reviewed and it involves a multidisciplinary approach. Acetylcholinesterase inhibitors are mostly a symptomatic treatment but some claims are made about a neuroprotective effect. Currently the only approved neuroprotective therapy in is memantine. Management of these patients also require neuroleptics for aggressive behavior and antidepressants. There is an emphasis on early detection at the stage of mild cognitive impairment and early institution of neuroprotective measures. The value of mental exercise in delaying the onset of Alzheimer's disease is being recognized.
Research in Alzheimer's disease still aims at elucidating the basic pathomechanisms. Animal models are important for research, particularly in testing some of the potential therapeutic approaches. There is considerable research in progress at the various centers, some of which is funded by the National Institute of Aging of the National Institutes of Health.
Over 300 different compounds are at various stages of development for the treatment of Alzheimer's disease. These are classified and described. There are non-pharmacological approaches such as vagal nerve stimulation and cerebrospinal fluid shunting, which are in clinical trials. Approximately 180 clinical trials are listed, of which 127 are still in progress and 53 were discontinued for various reasons.
Alzheimer's disease market in the seven major markets is analyzed for the year 2010. Several new therapies are expected to be in the market and the shares of various types of approaches are estimated for the future up to the year 2020. As a background to the markets, pharmacoeconomic aspects of care of Alzheimer disease patients and patterns of practice are reviewed in the seven major markets.
Profiles of 140 companies involved in developing diagnostics and therapeutics for Alzheimer's disease are presented along with 110 collaborations. The bibliography contains over 850 publications that are cited in the report.The report is supplemented with 44 tables and 15 figures.
Table of Contents
0. Executive Summary 19
1. Clinical Features, Epidemiology and Pathology 21
Introduction 21
Historical aspects 21
Clinical features of Alzheimer disease 22
Seven stages of Alzheimer disease 24
AD as a terminal illness 26
Detection of AD in the preclinical phase 26
Differentiation of AD from other dementias 26
Differentiation of AD from non-dementing disorders 27
Cerebral insufficiency and AD 28
Memory deficits and preclinical AD 28
Mild cognitive impairment 29
Evolution of diagnostic criteria of AD 31
Revised criteria for the clinical diagnosis of AD 32
Epidemiology 33
Epidemiology of aging 33
Epidemiology of dementia 35
Epidemiology of AD 35
Prevalence of AD according to age 36
Mortality in AD 36
Pathophysiology of AD 37
Cerebral atrophy and neuronal loss 37
Neuritic plaques and neurofibrillary tangles 37
Sp proteins as markers of neuronal death in AD 38
Role of tau in the pathogenesis of AD 38
Amyloid precursor protein 39
Relation of APP mutations to CNS disorders 40
Relation of APP to A? deposits and pathogenesis of AD 40
APP intracellular domain 42
Role of secretases in amyloid cascade 42
Role of exosomal proteins 44
Role of nicastrin 44
Neurotixicity of A? deposits 44
Relation of A? deposits to synaptic activity 45
Dysfunction of TGF-? signaling accelerates A? deposition 45
Role of TMP21 in presenilin complexes and A? formation 45
Role of A? dimers in the pathogenesis of AD 46
Structure–neurotoxicity relationships of A? oligomers 46
A? deposit and clearance 46
Impairment of mitochondrial energy metabolism 47
A?-binding alcohol dehydrogenase links AD to mitochondrial toxicity 48
Neural thread protein 48
Loss of synaptic proteins 48
AD and Down syndrome 49
Overlapping pathologies of AD and Parkinson disease 49
AD and age-related macular degeneration 50
Myelin hypothesis of AD 50
Blood-brain barrier in AD 50
Blood vessel damage in AD 52
Loss of serotonin 1A receptors in the brain 52
Factors in pathogenesis of AD 52
Aerobic glycolysis and AD 52
Astrocytes and AD 52
Axonal transport failure in AD 53
Cell-cycle hypothesis 53
Chronic heart failure link with AD 54
Creatine and AD 54
Disturbances of interaction of nervous system proteins 54
DENN/MADD expression and enhanced pro-apoptotic signaling in AD 54
Gonadotrophins and AD 55
Glutamate transport dysfunction in AD 55
Innate immune system and AD 56
Insulin, diabetes and AD 57
Mechanisms underlying cognitive deficits in AD 57
Monoamine oxidase and AD 58
Neuroinflammation and AD 58
Neurotransmitter deficits 59
Neurotrophic factors 60
NF-kB signaling and the pathogenesis of neurodegeneration 60
Nitric oxide and AD 61
Nogo receptor pathway 63
Oxidative stress and AD 63
Prostaglandins and AD 65
Quinolinic acid and AD 65
Retromer deficiency 65
Serotonin and AD 66
Spherotoxin 66
Synaptic failure in AD 66
Transmission of AD 67
Ubiquitin-proteasome system in pathogenesis of AD 67
Risk factors in the etiology of AD 68
Aging and developmental abnormalities of the cholinergic system 69
Cholesterol, dietary lipids, and A? 69
Exposure to magnetic fields 70
Family history of AD 70
Homocysteine and AD 70
Level of education/type of job and risk of AD 71
Metals and AD 72
Obesity 73
Proneness to psychological distress and risk of AD 74
Reduced muscle strength 74
Sleep deprivation 74
Traumatic brain injury and AD 75
Vascular risk factors for AD 76
Vitamin B12 and folate 77
AD versus non-dementing changes in the aging brain 77
AD and cognitive impairment with aging 78
Pathomechanism of memory impairment and AD 78
Concluding remarks on pathophysiology of AD 79
Genetics of AD 80
Familial AD 80
Presenilins and calcium channel leak in pathogenesis of familial AD 82
Late onset AD 82
Genomics of AD 82
Introduction to genomics 82
Genes associated with Alzheimer disease 83
AlzGene database 84
ApoE gene 84
ApoE genotype and nitric oxide 85
ApoE genotype modulates AD phenotype 86
APOE genotype and age-related myelin breakdown 86
ApoE receptor interaction with NMDA receptor 87
ApoE and ApoER2 87
ApoE receptor LR11 as regulator of Ab 88
Arctic mutation 88
CALHM1 polymorphism and AD 88
CLU, CRI and PICALM 88
CYP46 and risk for AD 89
DAPK1 gene variants and AD 89
Genetic variants associated with late-onset AD 89
Copy number variation (CNV) in LOAD 90
LRRTM3 as a candidate gene for AD 90
MTHFD1L gene variant associated with AD 90
OGG1 mutations associated with AD 91
SORL1 gene in AD 91
TOMM40 gene and risk of AD 91
International Genomics of Alzheimer's Project 91
Molecular neuropathology 92
Role of microRNAs in AD 92
AD as a polygenic disorder 93
Proteomics of AD 93
Introduction 93
Application of proteomic technologies to study AD 93
Protein misfolding in AD 95
Common denominators of AD and prion diseases 96
Amyloid fibrils as a common feature of AD and prion diseases 97
FE65 proteins and AD 97
2. Diagnostic Procedures for Alzheimer Disease 99
Importance of the diagnosis of Alzheimer disease 99
Methods of diagnosis of AD 99
Self-administered olfactory test 100
Neuropsychological testing 100
Assessment and evaluation 101
7-minute screen 101
15-point risk index 102
Measurement of aggregation in anterior segment of the eye 102
Activities of Daily Living 102
Alzheimer Disease Cooperative Study 103
CDR-SOB score 103
Clinician's Interview-Based Impression of Change 103
Resource Utilization in Dementia Battery 103
DETECTä System 103
Electrophysiology 104
EEG-based bispectral index 104
Event-related potentials 104
Correlation of electrical activity of the brain with cognition 104
Early detection of cataract associated with AD 105
Retinal imaging to detect A? deposits 105
Laboratory methods for diagnosis of AD 105
Monitoring of synthesis and clearance rates of A? in the CSF 105
Molecular diagnostics for AD 106
Genetic tests for AD 107
ApoE genotyping 107
Gene expression patterns in AD 108
Molecular fingerprinting of the immune system in AD 108
Microarray-based tests for AD 108
Monoclonal antibody-based in vitro diagnosis of AD from brain tissues 109
Biomarkers of AD 109
The ideal biomarker for AD 111
CSF biomarkers of AD 111
CSF sulfatide as a biomarker for AD 111
Glycerophosphocholine as CSF biomarker in AD 112
Protein biomarkers of AD in CSF 112
Amyloid precursor protein 114
Tau proteins in CSF 114
Tests for the detection of Ab in CSF 114
Tests combining CSF tau and Ab 115
Urine tests for AD 115
Blood tests for AD 116
Blood A? levels 116
Blood test for AD based on heme oxygenase-1 117
Blood test for AD based on RNA hybridization 117
GSK-3 elevation in white blood cells 117
Lymphocyte Proliferation Test 118
Protein kinase C in red blood cells 118
Sphingolipids 118
Tests based on protein biomarkers in blood 118
A skin test for early detection of AD 119
Saliva-based tests for AD 119
Saliva A?42 level as a biomarker of AD 119
Nanotechnology to measure A?-derived diffusible ligands 120
Simultaneous measurement of several biomarkers for AD 120
Plasma biomarkers of drug response in AD 121
A serum protein-based algorithm for the detection of AD 121
Concluding remarks about biomarkers for AD 121
Imaging in AD 122
Computed tomography 122
Magnetic resonance imaging 122
Arterial spin labeling with MRI 123
Magnetic resonance microscopy 123
Magnetic resonance spectroscopy 123
Single photon emission computed tomography and modifications 124
Positron emission tomography 125
In vivo imaging of Ab deposits by PET 126
Pittsburgh compound B and PET 127
Florbetapir-PET 128
Florbetaben-PET 128
In vivo detection of A? plaques by MRI 129
Imaging agents for A? and neurofibrillary tangles 129
Targeting of a chemokine receptor as biomarker for brain imaging 130
Radioiodinated clioquinol as a biomarker for A? 130
Imaging neuroinflammation in AD 130
Preclinical diagnosis of AD 131
Meta-analysis of literature on imaging in AD 132
Alzheimer Disease Neuroimaging Initiative 132
Concluding remarks on imaging for diagnosis of AD 133
Diagnosis of MCI and prediction of AD 133
Diagnosis of MCI 133
Computer-Administered Neurophychological screen for MCI 133
Infrared eye-tracking technology to detect MCI 133
PET for detection of MCI 134
MRI for detection of MCI 134
Presymptomatic detection of AD 134
PredictAD project 135
Prediction of AD in patients with MCI 135
Combination of MMSE and a memory test for prediction of AD 135
Biochemical biomarkers in CSF for prediction of AD 135
Structural MRI biomarkers for prediction of AD 136
Magnetoencephalography for detection of MCI and AD 136
Concluding remarks about prediction of AD in MCI 137
Criteria for diagnosis of AD 137
Role of biomarkers in diagnosis of AD dementia 138
Ethical aspects of diagnostics for AD 138
Genetic testing for AD 138
Ethical issues of brain imaging in AD 139
Companies involved in diagnosis of AD 139
3. Management of Alzheimer Disease 141
Introduction 141
Cholinergic approaches 141
Mechanism of action of cholinesterase inhibitors 142
Choline and lecithin 143
Donepezil 144
Rivastigmine 145
Galantamine 146
Duration of treatment with ChE inhibitors 147
Comparative studies of ChE inhibitors 147
Donepezil versus rivastigmine 148
Donepezil versus galantamine 148
An assessment and future prospects of anticholinergic therapies 148
Neuroprotection in Alzheimer's disease 149
Memantine 150
Combination of memantine with ChE inhibitors 153
Monoamine oxidase inhibitors 153
Selegiline 154
Synaptoprotection in AD 154
Drugs for noncognitive symptoms in AD 154
Antidepressants 154
Antipsychotics 155
ChE inhibitors for behavioral and psychological disorders in AD 155
Concluding remarks and other drugs for agitation in AD 156
Sensory stimulation 156
Non-pharmacological treatments of AD 157
Management of memory loss in AD 157
Exposure to electromagnetic fields for treatment of AD 158
Application of electrical fields for improvement of cerebral function 158
High-frequency electromagnetic field treatment of AD 158
Vagal nerve stimulation 158
Cerebrospinal fluid shunting 159
Omental transposition 160
Microchip-based hippocampal prosthesis for AD 160
Nutritional therapies for AD 160
Axona 160
Cocktail of dietary supplements for AD 160
Docosahexaenoic acid 161
Magnesium 162
Nicotinamide for the treatment of AD 163
Omega-3 fatty acids 163
Preventing decline of mental function with aging and dementia 164
Prevention of Alzheimer disease 164
Mental training 165
Physical exercise 165
Higher level of conscientiousness and decreased risk of AD 166
Caloric restriction 166
Nutritional factors in prevention of AD 166
Grapes and red wine 167
Black and green teas 168
Caffeine 168
Drugs to prevent Alzheimer disease 169
Preimplantation genetic diagnosis of inherited Alzheimer disease 169
Presymptomatic detection of AD 169
Management of mild cognitive impairment 169
Management of Down syndrome 171
Guidelines for use of anti-dementia drugs in clinical practice 171
Donepezil and/or memantine 172
General care of the Alzheimer disease patients 173
Strategies for the management of Alzheimer disease 173
4. Research in Alzheimer Disease 175
Introduction 175
Animal models of Alzheimer disease 175
Lesional models 175
Cerebroventricular injection of A? in rats 175
Lentiviral vector-based models of amyloid pathology 176
AAV-mediated gene transfer to increase hippocampal Ab 176
Transgenic mouse models 176
Quantitative assessment of amyloid load in transgenic models 178
In vivo magnetic resonance microimaging in transgenic models of AD 178
Transgenic model of AD with suppression of A? production 178
Transgenic AD11 anti-NGF mice 179
Genetically altered mice with deficiency of vesicular ACh transporter 179
Limitations of mouse models of Alzheimer disease 179
Cholesterol-fed rabbits as models for AD 180
Zebrafish model for AD 180
Transgenic invertebrate models of Alzheimer disease 181
Drosophila model of AD 181
Caenorhabditis elegans Alzheimer disease model 182
Cell systems for AD research 182
In vitro neuronal cell Lines 182
Single-gene expression system for use in cell culture 183
Transgenic cells 183
In silico models 184
Estimation of progression rates of Alzheimer disease 184
Clinical trial methods in Alzheimer disease 185
Molecular imaging as a guide to drug development 185
Use of MRI and PET in clinical trials 186
Cognitive-function assessment in clinical trials 186
Clinical trials in mild cognitive impairment 187
Research in AD as a basis for future therapies 187
Use of microarrays for studying pathogenesis of AD 187
Computational brain mapping in AD 187
Study of neurogenesis in AD 188
Study of 3D structure of A? 188
Solid-state NMR to study precursors of A? 188
Research in Alzheimer disease at academic centers 188
Role of NIH in AD research 189
NIH Clinical Trials Database for AD 189
Alzheimer Research Consortium 189
The National Institute on Aging and AD research 189
5. Drug Discovery & Development for Alzheimer Disease 191
Introduction 191
Categories of drugs in development for AD 191
Memory-enhancing drugs 193
Enhancing memory by drugs that block eIF2? phosphorylation 193
Drugs based on cholinergic approaches 193
AP2238 194
Butyrylcholinesterase inhibitors 194
Donepezil-tacrine hybrids 194
Drugs modulating gamma-aminobutyric acid receptors 195
Ganstigmina 195
Methanesulfonyl fluoride 195
Muscarinic receptor modulators 196
Muscarinic M1 agonists 196
Muscarinic M2 antagonists 197
Nicotine and nicotinic receptor modulators 197
Nicotine 197
Nicotinic receptor modulators 198
GTS21 199
Ispronicline 199
JWB1-84-1 200
Neuropeptide/neurotransmitters 200
Somatostatin release enhancers 200
Glutamate receptor modulators 200
Physiology and pharmacology of glutamate receptors 201
NMDA receptor ion channel complex 201
Metabotropic glutamate receptors 203
Glutamate receptor modulators as potential therapeutics for AD 204
Non-competitive NMDA modulators 205
AMPA modulators 205
Drugs affecting multiple neurotransmitters 206
Ensaculin 206
NS2330 206
RS-1259 206
Lecozotan 207
Vaccines for AD 207
Active immunization with Ab 208
AN-1792 vaccine 208
Complications in clinical trials with AN-1792 208
Effects of A? vaccine on the brain 208
Strategies to avoid undesirable effect of A? vaccination 209
Passive immunization in AD 210
Passive immunization with MAbs 210
Delivery of the passive antibody directly to the brain 212
Systemic injection of MAbs to treat AD 213
Combination of Ab immunotherapy and CD40-CD40L blockade 213
Shaping the immune responses elicited against Ab 213
Delivery of AD vaccines 214
Gene vaccination 214
Modified A? nasal vaccine 214
Transdermal A? vaccination 214
Other vaccines for AD 215
Nasal vaccination with ProteosomeÔ adjuvant 215
T-cell vaccination with glatiramer acetate adjuvant 216
Early start of immunotherapy to clear Ab plaques 216
Reversal of cholinergic dysfunction by anti-Ab antibody 216
Immune modulation via TRL9 to reduce A? 216
Mechanisms by which Ab antibodies reduce amyloid accumulation in the brain 217
Perspectives on vaccines for AD 217
Companies involved in AD vaccines 219
Inhibition of amyloid precursor protein aggregation 220
Secretase modulators 220
Neuroprotection by ?-secretase cleaved APP 221
Inhibitors of ?-secretase 221
Inhibitors of ?-secretase 222
Amyloid-derived diffusible ligands 223
GABA receptor modulation by etazolate and APP processing 224
Depletion of serum amyloid P 224
Trojan-horse approach to prevent build-up of A? aggregates 224
Drugs that inhibit the formation of A? 225
22R-hydroxycholesterol 225
Acylaminopyrazole 226
Cadmium telluride nanoparticles prevent A? fibril formation 226
Cannabinoids 226
Chelation therapy for AD 227
Clioquinol and PBT2 227
Copper chelation by FKBP52 228
Zinc chelation from amyloid plaques 229
Next generation multifunctional chelating agents for AD 229
Heparin and its derivatives 229
A reassessment of the role of heparin in AD 229
Enoxaparin 230
Heparan sulfate 230
Imatinib mesylate 230
Laminin 231
NSAIDs 231
Flurbiprofen analogs with Ab42-lowering action 232
Nitric oxide-donating NSAIDs 233
In vivo demonstration of the effects of NSAIDs on brain in AD 233
Paclitaxel 233
Phenserine 234
Tolserine 234
Platinum-based inhibitors of Ab 235
Scyllo-cyclohexanehexol 235
Ubiquitin C-terminal hydrolase L1 235
Drugs to prevent the formation of NFTs 235
Tau suppression 236
ApoE4 as a therapeutic target in AD 237
Strategies to prevent deposits and enhance clearance of A? 237
4,5-dianilinophthalimide for disruption of A?1-42 fibrils 238
ABCA1 overexpression to lower amyloid deposits 239
Beta-sheet breakers 239
Blocking ApoE/Ab interaction to reduce A? plaques 239
Clearance of A? across the blood-brain barrier 240
Enhanced PKC? activity promotes clearance of A? 240
Galantamine-induced A? clearance 240
Inhibitors of A? dehydrogenase 241
Intravenous immune globulin 241
Meptides 242
Monoclonal antibodies for removal of A? 242
Nanotechnology for removal of A? deposits 243
Role of matrix metalloproteinases in clearance of A? 243
SAN-61 for cleavage of fibril and soluble amyloid 243
Serum amyloid P component depletion 244
Small molecule DAPH for clearance of amyloid 244
Companies developing A?-directed therapeutics for AD 244
Antiinflammatory and antimicrobial drugs 246
Dapsone 246
Antimicrobial drugs against C. pneumoniae 246
PPAR-gamma agonists 246
Inhibitors of neuroinflammation 247
Cyclophosphamide 247
Etanercept 247
MW01-5-188WH 248
Antidiabetic drugs 248
Rosiglitazone 248
Pioglitazone 249
Nootropics 249
Acetyl-L-carnitine 249
Cerebrolysin 250
Ergot derivatives 250
Lisuride 250
Dihydroergocryptine 251
Neuroprotective effect drugs not primarily developed for AD 251
Antihypertensive drugs 252
Angiotensin-converting enzyme inhibitors 252
Angiotensin receptor blockers 252
Dimebolin 252
Drugs acting on estrogen receptors 253
Estrogen 254
Raloxifene 254
Neurosteroids 255
Pregnenolone sulfate 255
Dehydroepiandrosterone 255
Lithium 256
MAO-B inhibitors 256
Ladostigil tartrate 256
Memoquin 257
Methylene blue 257
Nimodipine 257
Rapamycin 258
Statins 258
Testosterone 259
Valproic acid 260
Future prospects of neuroprotection in AD 260
Targeting Cdk5 pathway 261
Antioxidants 261
Colostrinin 262
Curcumin 262
Melatonin 263
Synthetic catalytic scavengers 263
Dehydroascorbic acid 263
Omega-3 fatty acids 264
Vitamins 264
Vitamin E as antioxidant 264
Vitamins to lower homocysteine 264
Folic acid 265
Aminopyridazines 265
Nanobody-based drugs for AD 265
Nitric oxide based therapeutics for AD 266
Nitric oxide mimetics 266
iNOS inhibitors for AD 266
Novel drugs for AD from natural resources 267
Berberine chloride 267
Centella asiatica 268
Ginko biloba 268
Huperzine-A 269
Hyperforin 270
Melissa officinalis 270
Nostocarboline derived from cyanobacteria 270
PTI-00703 271
Salvia 271
Securinega suffruticosa 271
Withania somnifera 271
ZT-1 272
Cholesterol and AD 272
ACAT inhibitors 273
Role of gene for cholesterol ester transfer protein 274
Cholesterol 24S-hydroxylase as a drug target for AD 274
Selectively increase of ApoA-I production 274
Neurotrophic factors 275
Activity-dependent neuroprotective protein 275
Brain derived neurotrophic factor 275
Insulin-like growth factor-1 275
Nerve growth factor 276
Neotrofin (AIT-082) 277
Limitations of the use of NTFs for AD 277
Role of serotonin modulators in AD 278
Xaliproden 278
5-HT1A receptor antagonists 278
5-HT6 antagonists 278
5-HT4 receptor agonists 279
PRX-03140 279
Cell therapy for AD 280
Stem cell transplantation for AD 280
Potential benefits of grafting NSCs in AD 280
NSCs improve cognition in AD via BDNF 281
Drugs for enhancing neuronal differentiation of implanted NSCs 281
Implantation of encapsulated cells for delivering NGF 281
Gene therapy for AD 281
ApoE gene therapy 282
FGF2 gene transfer in AD 282
Humanin gene therapy 282
Neprilysin gene therapy 282
NGF gene therapy 283
Targeting plasminogen activator inhibitor type-1 gene 284
Antisense approaches to AD 284
RNAi approaches to AD 285
Combined therapeutic approaches to AD 286
Drug delivery for Alzheimer disease 286
Delivery of thyrotropin-releasing hormone analogs by molecular packaging 286
Nanoparticle-based drug delivery for Alzheimer's disease 287
Transdermal drug delivery in Alzheimer's disease 288
Transdermal rivastigmine 288
Intranasal delivery of therapeutics for AD 288
Intranasal delivery of tacrine 288
Intranasal delivery of nerve growth factor to the brain 289
Circadian rhythms and timing of cholinesterase inhibitor therapy 289
Clinical trials for AD 289
Drugs for AD that were discontinued in clinical trials 294
Evaluation of clinical trials of AD 296
Monitoring of cognitive function during clinical trials 297
Drug discovery for AD 297
Drugs acting on signaling pathways 297
Activation of GTPase signaling by Cytotoxic Necrotizing Factor 1 297
Drugs to reverse inhibition of the PKA/CREB pathway in AD 297
Inhibition of the CD40 signaling pathway 298
JNK pathway as a target 298
Mitogen-activated protein kinase pathway as target 299
Protein kinase C activators 299
Electrophysiological detection of drug target for neuroprotection in early AD 299
Genomics-based drug discovery 300
High through screening for AD drug candidates 300
Proteomics and drug discovery for AD 301
Small molecule compounds binding to neurotrophin receptor p75NTR 302
Targeting Vav in tyrosine kinase signaling pathway 303
Novels targets/receptors for AD drug discovery 303
Activation of cerebral Rho GTPases 304
Activators of insulin-degrading enzyme 304
Blockade of TGF-b-Smad2/3 signaling in peripheral macrophages 304
Calcium channel blockers 305
Casein kinase 1 305
Cyclin-dependent kinase-5 305
Heat shock protein 90 inhibitors 306
Histone deacetylase 1 306
Inactivation of aph-1 and pen-2 reduces APP cleavage 306
NF-kB inhibitors 307
Kinases and phosphatases as targets for AD therapeutics 307
Neutral sphingomyelinase inhibitors 307
Phosphodiesterase inhibitors 308
Pin 1 as a target in AD 308
Protein phosphatase 5 as a neuroprotective in AD 309
Src homology-containing protein-1 inhibitors 309
Targeting GABAergic system 309
Pharmacogenomics of Alzheimer disease 309
Personalized therapy of AD 310
Genotyping and AD therapeutics 310
Biomarkers and companion diagnostics for AD 311
Regulatory aspects of drug development for AD 312
EMEA guidelines for drug development for AD 312
Concluding remarks and future prospects of drugs for AD 312
6. Markets & Finances of AD Care 315
Introduction 315
Pharmacoeconomics of treatment of AD 315
Quality of Life in relation to economics of AD 315
Costs associated with Alzheimer disease 315
Pharmacoeconomics of donepezil 316
Pharmacoeconomics studies using rivastigmine 316
Pharmacoenonomics studies using galantamine 317
A comparison of pharmacoenonomics outcomes with different ChE inhibitors 317
Pharmacoenonomics studies using memantine 318
Patterns of AD care in major markets 318
Care of AD patients in the US 318
Cost of care 318
Medicare and AD 319
Patterns of practice in AD care 320
Opinions of physicians' organizations on drugs for dementia 320
Care of AD patients in the UK 321
Cost of care 321
Patterns of practice in AD care 321
Retraction of NICE recommendations to NHS 322
Care of AD patients in Germany 323
Care of AD patients in France 323
Care of AD patients in Italy 324
Care of AD patients in Spain 324
Care of AD patients in Japan 324
Markets for AD diagnostics 325
Markets for AD therapeutics 325
Geographical markets for AD 325
Markets for currently approved drugs for AD 326
Markets for generic AD drugs 326
Future growth of AD market 327
Statins 327
Limitations of AD drug development by the biotechnology industry 327
Unmet needs in the management of AD 328
Drivers of AD markets 329
Increase of the aged populations 330
Increase in the number of approved drugs for AD 330
Limitations of the current therapies 330
Improvements in diagnosis 330
Increasing awareness of the disease 331
7. Companies 333
Introduction 333
Profiles of companies 333
Collaborations 480
8. References 485
Tables
Table 1-1: Historical landmarks relevant to Alzheimer disease 21
Table 1-2: Clinical features of Alzheimer disease 22
Table 1-3: Non-Alzheimer dementias 27
Table 1-4: A guide to evaluation for MCI due to AD 30
Table 1-5: NINCDS-ADRDA Criteria for diagnosis of Alzheimer disease 31
Table 1-6: Relation of mutations in amyloid precursor protein to CNS disorders 40
Table 1-7: Risk factors for Alzheimer's disease 68
Table 1-8: Genes linked to AD 83
Table 1-9: Abnormalities of expression of brain proteins in Down's syndrome and AD 94
Table 2-1: Classification of methods of diagnosis of Alzheimer disease 99
Table 2-2: Neuropsychological test batteries and scales for Alzheimer's disease 100
Table 2-3: Available molecular diagnostic tests for Alzheimer disease 106
Table 2-4: Classification of biomarkers of AD in blood and CSF 109
Table 2-5: Characteristics of an ideal biomarker for Alzheimer disease 111
Table 2-6: Role of biomarkers in diagnosis of AD dementia 138
Table 2-7: Companies involved in the diagnosis of Alzheimer disease 139
Table 3-1: Classification of treatments for Alzheimer disease 141
Table 3-2: Cholinergic approaches used in the treatment of Alzheimer disease 142
Table 3-3: Categories of neuroprotective agents for Alzheimer disease 150
Table 3-4: Strategies for prevention of Alzheimer disease 164
Table 3-5: Guidelines for the treatment of dementia 171
Table 4-1: Transgenic mouse models of Alzheimer disease 176
Table 5-1: Classification of therapies in development for Alzheimer disease 191
Table 5-2: Drugs for AD targeting nACh receptors 199
Table 5-3: Ionotropic glutamate receptors 201
Table 5-4: Classification of mGluRs 201
Table 5-5: Glutamate receptor modulators as potential therapeutic agents in AD 204
Table 5-6: Companies involved in developing vaccines for AD 219
Table 5-7: Secretase modulators in clinical trials 220
Table 5-8: Companies developing A--directed therapeutics for AD 244
Table 5-9: Innovative neuroprotective approaches for Alzheimer disease 251
Table 5-10: Herbal therapies for AD 267
Table 5-11: Novel drug delivery methods for Alzheimer disease therapies 286
Table 5-12: Clinical trials in Alzheimer disease 289
Table 5-13: Discontinued, failed or inconclusive clinical trials of Alzheimer disease 294
Table 6-1: Direct and indirect costs associated with Alzheimer disease 316
Table 6-2: Prevalence of AD in major markets 2011-2021 325
Table 6-3: AD market values from 2011-2021 in major world markets 326
Table 6-4: Markets for currently approved AD drugs 2011-2021 326
Table 6-5: Potential markets for drugs in development 2011-2021 327
Table 6-6: Limitations of AD drug discovery and development by the biotechnology industry 328
Table 6-7: Factors that drive AD markets 329
Table 7-1: Major players in Alzheimer's disease therapeutics 333
Table 7-2: Collaborations relevant to Alzheimer disease 480
Figures
Figure 1-1: Percentages of world population of people over the age of 65 according to more developed and less developed portions - 2000 to 2050. 33
Figure 1-2: Correlation between aging and AD in the US from 2000 to 2020 34
Figure 1-3: Prevalence of different types of dementia 35
Figure 1-4: Mechanisms of A- clearance 47
Figure 1-5: Nitric oxide neurotoxicity and neuroprotection in relation to Alzheimer disease 62
Figure 1-6: Oxidative stress and Alzheimer disease 64
Figure 1-7: Role of proteosome inhibition in A- generation and neurodegeneration 68
Figure 1-8: Pathomechanism of AD 80
Figure 3-1: Metabolism of acetylcholine 143
Figure 3-2: Neuroprotective effective of galantamine in AD 147
Figure 3-3: Strategies for the management of Alzheimer disease 173
Figure 5-1: NMDA receptor ion channel complex. 203
Figure 5-2: Neurotoxicity due to misfolding of Ab1-42 238
Figure 5-3: Role of proteomics in drug discovery and development for Alzheimer disease 302
Figure 6-1: Unmet needs in the management of Alzheimer disease 329
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Alzheimer Disease - New Drugs, Markets and Companies
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Stanford scientists turn skin cells into neural precusors, bypassing stem-cell stage
Posted: January 31, 2012 at 2:09 am
Public release date: 30-Jan-2012
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Contact: Krista Conger
kristac@stanford.edu
650-725-5371
Stanford University Medical Center
STANFORD, Calif. ? Mouse skin cells can be converted directly into cells that become the three main parts of the nervous system, according to researchers at the Stanford University School of Medicine. The finding is an extension of a previous study by the same group showing that mouse and human skin cells can be directly converted into functional neurons.
The multiple successes of the direct conversion method could refute the idea that pluripotency (a term that describes the ability of stem cells to become nearly any cell in the body) is necessary for a cell to transform from one cell type to another. Together, the results raise the possibility that embryonic stem cell research and another technique called "induced pluripotency" could be supplanted by a more direct way of generating specific types of cells for therapy or research.
This new study, which will be published online Jan. 30 in the Proceedings of the National Academy of Sciences, is a substantial advance over the previous paper in that it transforms the skin cells into neural precursor cells, as opposed to neurons. While neural precursor cells can differentiate into neurons, they can also become the two other main cell types in the nervous system: astrocytes and oligodendrocytes. In addition to their greater versatility, the newly derived neural precursor cells offer another advantage over neurons because they can be cultivated to large numbers in the laboratory ? a feature critical for their long-term usefulness in transplantation or drug screening.
In the study, the switch from skin to neural precursor cells occurred with high efficiency over a period of about three weeks after the addition of just three transcription factors. (In the previous study, a different combination of three transcription factors was used to generate mature neurons.) The finding implies that it may one day be possible to generate a variety of neural-system cells for transplantation that would perfectly match a human patient.
"We are thrilled about the prospects for potential medical use of these cells," said Marius Wernig, MD, assistant professor of pathology and a member of Stanford's Institute for Stem Cell Biology and Regenerative Medicine. "We've shown the cells can integrate into a mouse brain and produce a missing protein important for the conduction of electrical signal by the neurons. This is important because the mouse model we used mimics that of a human genetic brain disease. However, more work needs to be done to generate similar cells from human skin cells and assess their safety and efficacy."
Wernig is the senior author of the research. Graduate student Ernesto Lujan is the first author.
While much research has been devoted to harnessing the pluripotency of embryonic stem cells, taking those cells from an embryo and then implanting them in a patient could prove difficult because they would not match genetically. An alternative technique involves a concept called induced pluripotency, first described in 2006. In this approach, transcription factors are added to specialized cells like those found in skin to first drive them back along the developmental timeline to an undifferentiated stem-cell-like state. These "iPS cells" are then grown under a variety of conditions to induce them to re-specialize into many different cell types.
Scientists had thought that it was necessary for a cell to first enter an induced pluripotent state or for researchers to start with an embryonic stem cell, which is pluripotent by nature, before it could go on to become a new cell type. However, research from Wernig's laboratory in early 2010 showed that it was possible to directly convert one "adult" cell type to another with the application of specialized transcription factors, a process known as transdifferentiation.
Wernig and his colleagues first converted skin cells from an adult mouse to functional neurons (which they termed induced neuronal, or iN, cells), and then replicated the feat with human cells. In 2011 they showed that they could also directly convert liver cells into iN cells.
"Dr. Wernig's demonstration that fibroblasts can be converted into functional nerve cells opens the door to consider new ways to regenerate damaged neurons using cells surrounding the area of injury," said pediatric cardiologist Deepak Srivastava, MD, who was not involved in these studies. "It also suggests that we may be able to transdifferentiate cells into other cell types." Srivastava is the director of cardiovascular research at the Gladstone Institutes at the University of California-San Francisco. In 2010, Srivastava transdifferentiated mouse heart fibroblasts into beating heart muscle cells.
"Direct conversion has a number of advantages," said Lujan. "It occurs with relatively high efficiency and it generates a fairly homogenous population of cells. In contrast, cells derived from iPS cells must be carefully screened to eliminate any remaining pluripotent cells or cells that can differentiate into different lineages." Pluripotent cells can cause cancers when transplanted into animals or humans.
The lab's previous success converting skin cells into neurons spurred Wernig and Lujan to see if they could also generate the more-versatile neural precursor cells, or NPCs. To do so, they infected embryonic mouse skin cells ? a commonly used laboratory cell line ? with a virus encoding 11 transcription factors known to be expressed at high levels in NPCs. A little more than three weeks later, they saw that about 10 percent of the cells had begun to look and act like NPCs.
Repeated experiments allowed them to winnow the original panel of 11 transcription factors to just three: Brn2, Sox2 and FoxG1. (In contrast, the conversion of skin cells directly to functional neurons requires the transcription factors Brn2, Ascl1 and Myt1l.) Skin cells expressing these three transcription factors became neural precursor cells that were able to differentiate into not just neurons and astrocytes, but also oligodendrocytes, which make the myelin that insulates nerve fibers and allows them to transmit signals. The scientists dubbed the newly converted population "induced neural precursor cells," or iNPCs.
In addition to confirming that the astrocytes, neurons and oligodendrocytes were expressing the appropriate genes and that they resembled their naturally derived peers in both shape and function when grown in the laboratory, the researchers wanted to know how the iNPCs would react when transplanted into an animal. They injected them into the brains of newborn laboratory mice bred to lack the ability to myelinate neurons. After 10 weeks, Lujan found that the cells had differentiated into oligodendroytes and had begun to coat the animals' neurons with myelin.
"Not only do these cells appear functional in the laboratory, they also seem to be able to integrate appropriately in an in vivo animal model," said Lujan.
The scientists are now working to replicate the work with skin cells from adult mice and humans, but Lujan emphasized that much more research is needed before any human transplantation experiments could be conducted. In the meantime, however, the ability to quickly and efficiently generate neural precursor cells that can be grown in the laboratory to mass quantities and maintained over time will be valuable in disease and drug-targeting studies.
"In addition to direct therapeutic application, these cells may be very useful to study human diseases in a laboratory dish or even following transplantation into a developing rodent brain," said Wernig.
###
In addition to Wernig and Lujan, other Stanford researchers involved in the study include postdoctoral scholars Soham Chanda, PhD, and Henrik Ahlenius, PhD; and professor of molecular and cellular physiology Thomas Sudhof, MD.
The research was supported by the California Institute for Regenerative Medicine, the New York Stem Cell Foundation, the Ellison Medical Foundation, the Stinehart-Reed Foundation and the National Institutes of Health.
The Stanford University School of Medicine consistently ranks among the nation's top medical schools, integrating research, medical education, patient care and community service. For more news about the school, please visit http://mednews.stanford.edu. The medical school is part of Stanford Medicine, which includes Stanford Hospital & Clinics and Lucile Packard Children's Hospital. For information about all three, please visit http://stanfordmedicine.org/about/news.html.
PRINT MEDIA CONTACT: Krista Conger at (650) 725-5371 (kristac@stanford.edu)
BROADCAST MEDIA CONTACT: M.A. Malone at (650) 723-6912 (mamalone@stanford.edu)
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Stanford scientists turn skin cells into neural precusors, bypassing stem-cell stage
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StemCells, Inc. Announces Publication of Preclinical Data Demonstrating Its Human Neural Stem Cells Preserve Vision
Posted: January 30, 2012 at 4:29 pm
NEWARK, Calif., Jan. 30, 2012 (GLOBE NEWSWIRE) -- StemCells, Inc.
(Nasdaq:STEM
-
News) today announced the publication of preclinical data
demonstrating that its proprietary HuCNS-SC(R) cells (purified
human neural stem
cells) protect host photoreceptors and preserve vision
in an animal model of retinal disease. The preclinical
results are highly relevant to human disorders of vision loss,
the most notable of which is dry age-related macular degeneration
(AMD). The study is available online at
http://onlinelibrary.wiley.com/doi/10.1111/j.1460-9568.2011.07970.x/abstract
and will be featured as the cover article in the February issue
of the international peer-reviewed European Journal of
Neuroscience.
This research was conducted in collaboration with a team of
researchers led by Raymond Lund, Ph.D., Professor Emeritus of
Ophthalmology, and Trevor McGill, Ph.D., Research Assistant
Professor at the Casey Eye Institute, Oregon Health and Science
University.
The results of the study show that photoreceptors, the key
cells of the eye involved in vision, were protected from
degeneration following transplantation of HuCNS-SC cells into
the Royal College of Surgeons (RCS) rat. The RCS rat is a
well-established model of retinal disease which has been used
extensively to evaluate potential cell therapies. Moreover, the
number of cone photoreceptors, which are responsible for
central vision, remained constant over an extended period,
consistent with the sustained visual acuity and light
sensitivity observed in the study. In humans, degeneration of
the cone photoreceptors account for the unique pattern of
visual loss in dry AMD.
"These results are the most robust shown to date in this animal
model," said Dr. Lund, one of the study's lead investigators.
"One of the more striking findings is that the effect on vision
was long-lasting and correlated with the survival of HuCNS-SC
cells more than seven months after transplantation, which is
substantially longer than other cell types transplanted into
this same model. Also important, particularly for potential
clinical application, was that the cells spread from the site
of initial application to cover more of the retina over time.
These data suggest that HuCNS-SC cells appear to be a
well-suited candidate for cell therapy in retinal degenerative
conditions."
Alexandra Capela, Ph.D., another of the study's investigators
and a senior scientist at StemCells, commented, "This study
showed that the HuCNS-SC cells persisted and migrated
throughout the retina, with no evidence of abnormal cell
formation, which supports our hypothesis of a single transplant
therapeutic. With this research, then, we have shown that
vision can be positively impacted with a simple approach that
does not require replacing photoreceptors or the RPE cells. We
look forward to investigating this promising approach in the
clinic later this year."
About StemCells, Inc.
StemCells, Inc. is engaged in the research, development, and
commercialization of cell-based therapeutics and tools for use
in stem cell-based research and drug discovery. The Company's lead
therapeutic product candidate, HuCNS-SC(R) cells (purified
human neural stem cells), is currently in development as a
potential treatment for a broad range of central nervous system
disorders. Clinical trials are currently underway in spinal
cord injury and in Pelizaeus-Merzbacher disease (PMD), a fatal
myelination disorder in children. In addition, the Company
plans to initiate a clinical trial of HuCNS-SC cells in the dry
form of age-related macular degeneration in 2012, and is also
pursuing preclinical studies of its HuCNS-SC cells in
Alzheimer's disease. StemCells also markets stem cell research
products, including media and reagents, under the SC Proven(R)
brand, and is developing stem cell-based assay platforms for
use in pharmaceutical research, drug discovery and drug
development. Further information about StemCells is available
at
http://www.stemcellsinc.com.
The StemCells, Inc. logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=7014
Apart from statements of historical fact, the text of this
press release constitutes forward-looking statements within the
meaning of the Securities Act of 1933, as amended, and the
Securities Exchange Act of 1934, as amended, and is subject to
the safe harbors created therein. These statements include, but
are not limited to, statements regarding the prospect of the
Company's HuCNS-SC cells to preserve vision in animal models of
retinal disease; the prospect of successful results from this
research collaboration and advancing to clinical testing in
age-related macular degeneration or other retinal disease; the
potential of the Company's HuCNS-SC cells to treat a broad
range of central nervous system disorders; the prospect and
timing associated with initiating a clinical trial in a retinal
disorder; and the future business operations of the Company,
including its ability to conduct clinical trials as well as its
other research and product development efforts. These
forward-looking statements speak only as of the date of this
news release. The Company does not undertake to update any of
these forward-looking statements to reflect events or
circumstances that occur after the date hereof. Such statements
reflect management's current views and are based on certain
assumptions that may or may not ultimately prove valid. The
Company's actual results may vary materially from those
contemplated in such forward-looking statements due to risks
and uncertainties to which the Company is subject, including
the fact that additional trials will be required to demonstrate
the safety and efficacy of the Company's HuCNS-SC cells for the
treatment of any disease or disorder; uncertainty as to whether
the results of the Company's preclinical studies in retinal
disease will be replicated in humans; uncertainty as to whether
the FDA or other applicable regulatory agencies will permit the
Company to continue clinical testing in spinal cord injury, PMD
or in future clinical trials of proposed therapies for other
diseases or conditions given the novel and unproven nature of
the Company's technologies; uncertainties regarding the
Company's ability to recruit the patients required to conduct
its clinical trials or to obtain meaningful results;
uncertainties regarding the Company's ability to obtain the
increased capital resources needed to continue its current and
planned research and development operations; uncertainty as to
whether HuCNS-SC and any products that may be generated in the
future in the Company's cell-based programs will prove safe and
clinically effective and not cause tumors or other adverse side
effects; uncertainties regarding the Company's ability to
commercialize a therapeutic product and its ability to
successfully compete with other products on the market; and
other factors that are described under the heading "Risk
Factors" in the Company's Annual Report on Form 10-K for the
year ended December 31, 2010, and in its subsequent reports on
Forms 10-Q and 8-K.
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Gingrich Vows to Ban Embryonic Stem Cell Research
Posted: January 30, 2012 at 4:28 pm
(Photo: REUTERS/Shannon Stapleton)
U.S. Republican presidential candidate and former Speaker
of the House Newt Gingrich (R) speaks to the media after
attending a church service at the Exciting Idlewild
Baptist Church in Lutz, Florida January 29, 2012.
"I believe life begins at conception," the Republican
presidential hopeful stressed Sunday at a news conference
outside a Baptist church in Lutz, Fla.
"The question I was raising was what happens to embryos in
fertility clinics," Gingrich added, referring to the remarks he
made a day earlier at another Baptist church in Winter Park,
that embryonic stem-cell research amounts to "the use of
science to
desensitize society over the killing of babies."
Gingrich's proposal was seen as an attempt to woo evangelical
voters and gain an edge over former Mass. Gov. Mitt Romney, his biggest opponent in
Florida.
Gingrich went on to say he was in favor of a commission to
"look seriously" at the ethics of how fertility clinics are
managed. "If you have in vitro fertilization, you are creating
life; therefore, we should look seriously at what the rules
should be for clinics that are doing that, because they are
creating life," The Associated Press quoted him as saying
outside Exciting Idlewild Baptist Church.
Gingrich, who vocally supported federally funded research about
a decade ago, said he was also against the use of leftover
embryos for stem cell research.
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In vitro fertilization or IVF refers to formation of an embryo
outside a woman's body for implant inside the womb. Human
embryos can also be used in treatment or cure of illnesses and
injuries but they have life, conservatives say.
In 2009, President Barack Obama lifted restrictions on federal
funding for stem cell research, which were put in place by his
predecessor, George W. Bush in 2001.
Romney, who is not against the use of stem cell research on
excess embryos in fertility clinics, is leading in polls in
Florida. Reuters/Ipsos online poll results released Sunday
showed Romney having the support of 42 percent of likely voters
while Gingrich's support stood at 30 percent.
"It's clear that Romney's run a much more focused and effective
campaign in Florida than Newt," Republican strategist Matt
Mackowiak said Sunday, according to Reuters. "Newt's playing
defense every single day in every way and doesn't seem to be
able to make Romney play defense."
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Gingrich Vows to Ban Embryonic Stem Cell Research
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Stem cell treatment for animals – Video
Posted: January 30, 2012 at 11:48 am
26-01-2012 02:37 Animacel ltd. is offering your animal stem cell treatment with newly developed stem cell therapy. At the moment, excellent results are with treatments of different joint problems (arthritis and injury/damage of cartilage, hip dysplasia), tendon problems and supporting/adjuvant stem cell therapy for faster healing of broken bones. We are also developing treatment for heart insufficiency, eye dissease, diabetes, etc. See our webpage http://www.animacel.com
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Stem cell treatment for animals - Video
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Lecture by stem cell researcher tomorrow
Posted: January 29, 2012 at 8:06 pm
Celebrated adult stem cell researcher Shinya Yamanaka will
deliver a lecture, ‘New era of medicine with iPS cells', here
on Monday as part of a three-city lecture series. Prof.
Yamanaka's scientific breakthrough was the creation of
embryonic-like stem cells from adult skin cells.
The lecture by this Japanese physician is the third edition of
The Cell Press-TNQ India Distinguished Lectureship Series. He
will also deliver it in Chennai on February 1 and New Delhi on
February 3. The lecture series is co-sponsored by Cell Press
and TNQ Books and Journals.
Quantum leap
The stated goal of Prof. Yamanaka's laboratory has been to
generate pluripotent stem cells from human somatic cells. The
ability to re-programme adult cells back into an earlier,
undifferentiated state has helped to reshape the ethical debate
over stem cell research by providing an approach to obtain
pluripotent stem cells that need not be harvested from an
embryo.
Prof. Yamanaka, who was awarded the Albert Lasker Prize in 2009
and the Wolf Prize in 2011, is the director of the Centre for
iPS Cell Research and Application and professor at the
Institute for Frontier Medical Sciences at Kyoto University. He
is also a senior investigator at the UCSF-affiliated J. David
Gladstone Institutes and a professor of Anatomy at the
University of California in San Francisco.
Previous lectures
The inaugural speaker of the lecture series was American
biologist David Baltimore, who won the 1975 Nobel. The second
speaker was Australia-born American biological researcher
Elizabeth Blackburn, awarded the 2009 Nobel.
The lecture in Bangalore will commence at 4.30 p.m. at J.N.
Tata Auditorium, National Science Seminar Complex, Indian
Institute of Science, C.V. Raman Road.
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Lecture by stem cell researcher tomorrow
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Colon Cancer Screening Needed Less Than Every 5 Years
Posted: January 29, 2012 at 4:55 pm
Colon Cancer Screening Needed Less Than Every 5 Years - Colon cancer is easily treated if found early enough, but it appears current recommendations for scope screening every 5 years is unnecessarily frequent.
Sigmoidoscopy screening for colon cancer is recommended every five years for people over 50, however a new study found that screening that often may be unnecessary.
Sigmoidoscopy screening allows a doctor to identify polyps, or small growths, in the colon that could turn into cancer. Other colon cancer screening methods include fecal occult blood testing, which identifies blood in the stool, and colonoscopy, which examines the entire colon (sigmoidoscopy only examines the lower part).
While the American Cancer Society recommends that adults over 50 receive sigmoidoscopy screening every five years and a fecal occult blood test annually, some say this may be overly aggressive.
According to experts, it could take up to 15 years for polyps to develop into cancer and it may be that a one-time sigmoidoscopy screening is enough for those at average-risk. Read more...
AyurGold for Healthy Blood
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