Thread View: sci.life-extension
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Started by Hua Kul
Tue, 13 Jan 2004 01:55
Human study: Clioquinol stops Alzheimer's disease
Author: Hua Kul
Date: Tue, 13 Jan 2004 01:55
Date: Tue, 13 Jan 2004 01:55
192 lines
9967 bytes
9967 bytes
(The following is from the thread http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=afe2faf1.0308141829.d00f6d2%40posting.google.com&rnum=2&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dclioquinol%26btnG%3DGoogle%2BSearch%26meta%3Dgroup%253Dsci.life-extension) > Tim Tyler (tim@tt1.org) > Subject: Re: Copper & Alzheimer's Disease > A report of a previous study: > ``Research teams at Harvard Medical School, the University of Melbourne, > and Prana Biotechnology Ltd in Australia are working collaboratively on > giving Alzheimer's-prone mice copper chelators, substances that sop up > metals and eliminate them from the body. These new metal-binding drugs > effectively "melted" the amyloid plaques in living mice in as little as > nine weeks, and are now in clinical trials with Alzheimer's > patients. Results of the first of these drugs, clioquinol, should be > known within 12 months, and further trials of this approach are > currently in preparation.'' > - http://www.infoaging.org/d-alz-9-r-metals.html > -- __________ > |im |yler http://timtyler.org/ tim@tt1.org Here is a small study indicating clioquinol virtually halted progression of moderate AD in humans. ==================================================================== 1: Arch Neurol. 2003 Dec;60(12):1685-91. Related Articles, Links Comment in: Arch Neurol. 2003 Dec;60(12):1678-9. Metal-protein attenuation with iodochlorhydroxyquin (clioquinol) targeting Abeta amyloid deposition and toxicity in Alzheimer disease: a pilot phase 2 clinical trial. Ritchie CW, Bush AI, Mackinnon A, Macfarlane S, Mastwyk M, MacGregor L, Kiers L, Cherny R, Li QX, Tammer A, Carrington D, Mavros C, Volitakis I, Xilinas M, Ames D, Davis S, Beyreuther K, Tanzi RE, Masters CL. Departments of Pathology, The University of Melbourne, The Mental Health Research Institute of Victoria, Parkville, Victoria, Australia. BACKGROUND: Alzheimer disease (AD) may be caused by the toxic accumulation of beta-amyloid (Abeta). OBJECTIVE: To test this theory, we developed a clinical intervention using clioquinol, a metal-protein-attenuating compound (MPAC) that inhibits zinc and copper ions from binding to Abeta, thereby promoting Abeta dissolution and diminishing its toxic properties. METHODS: A pilot phase 2 clinical trial in patients with moderately severe Alzheimer disease. RESULTS: Thirty-six subjects were randomized. The effect of treatment was significant in the more severely affected group (baseline cognitive subscale score of the Alzheimer's Disease Assessment Scale, >/=25), due to a substantial worsening of scores in those taking placebo compared with minimal deterioration for the clioquinol group. Plasma Abeta42 levels declined in the clioquinol group and increased in the placebo group. Plasma zinc levels rose in the clioquinol-treated group. The drug was well tolerated. CONCLUSION: Subject to the usual caveats inherent in studies with small sample size, this pilot phase 2 study supports further investigation of this novel treatment strategy using a metal-protein-attenuating compound. Publication Types: Clinical Trial Clinical Trial, Phase II Randomized Controlled Trial PMID: 14676042 [PubMed - indexed for MEDLINE] http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14676042&dopt=Abstract ====================================================================== Here'a an article on the study. =============================================================== Drug used to treat athlete's foot 'slows down Alzheimer's' By Michael Day and Martyn Halle (Filed: 11/01/2004) A drug that is used in the treatment of athlete's foot could be used to treat Alzheimer's disease, according to a new study by British doctors. Iris Murdoch, who died in 1999, and her husband John Bayley The study, by a team from University College, London, found that clioquinol, a drug that is also used to treat ear infections and indigestion, can almost halt the progression of Alzheimer's. It discovered that clioquinol, which was developed 100 years ago, is able to absorb the zinc and copper atoms that concentrate in the brains of Alzheimer's sufferers before dementia sets in. Doctors believe that by absorbing these atoms, clioquinol can arrest the onset of dementia, potentially helping thousands of people. Dr Craig Ritchie, a psychiatrist at UCL and a Medical Research Council research fellow who led the trial, said that the results were "very exciting". "The patients on this trial had Alzheimer's that was mild to moderate, but there was very little change in their brains once they had started treatment," he said. "This drug could give your mind a chance to stay healthy as long as your body does. Particularly for patients who get this terrible disease in middle age, we need better treatments." The study was prompted by research at Melbourne University in Australia and Harvard University in the United States, which found that clioquinol could prevent zinc from building up on the surface of the brain. Academics from the universities speculated that by blocking zinc they could halt, and possibly reduce, the brain damage that causes Alzheimer's victims to lose their memory. To test their theory, the UCL doctors tested 13 Alzheimer's patients, giving them clioquinol over a nine-month period, and 13 other Alzheimer's sufferers who were given a placebo. The results, published in the Archives of Neurology, show that patients given clioquinol retained significantly more mental capacity than those who received the placebos. Dr Ritchie said that the patients taking clioquinol experienced a decline in their mental faculties of just 1.4 per cent. "You would normally see a drop of four points or more in someone with Alzheimer's over the period of time we treated these patients," he added. "For those taking the placebo, their mental decline was 8.9 per cent. It's a very large gap and indicated that the drug was working." Alzheimer's affects one in 10 people over the age of 65, and almost half of those aged 85 and over. The protective effect of clioquinol appears to be nearly twice as great as that of the latest generation of Alzheimer's drugs, such as donepezil, which are expensive and not always widely available. A survey by Pfizer, the drug company, revealed last week that the availability of treatments, which cost up to �100 a month, varied sharply across Britain. In the worst area, Lothian in Scotland, less than �1 a head was spent on these drugs in the over-65 population compared with more than �10 a head in Northern Ireland. Clioquinol should be much cheaper because it is no longer protected by a patent. Prana Technology, an Australian drug firm, provided clioquinol for the first small trial. Larger trials of the drug are expected to start shortly and will include British patients. Dr Ritchie said that animal studies had suggested that the drug might even reverse the progress of the dementia - something that current treatments are unable to do. "We know that in mice the disease was reversed. Everyone is excited but this was only a small trial and we have to do a larger trial. We think this drug will produce the same results in extended trials with humans. If we can get to them early, we might be able to treat patients and leave them with very little damage to their brain." One fear over the long-term use of clioquinol is that it may damage peripheral nerves and the nerves in the eye. Dr Ritchie said his team found no evidence of this during their trial. Dr Susanne Sorensen, the head of research at the Alzheimer's Society, said: "The UCL research suggests that there may be a novel use for this already existing drug in the treatment of Alzheimer's disease. But the trial is limited in its scale and we believe it would be valuable to see a larger scale trial. "The potential for new drugs that may interfere with or revert the progression of Alzheimer's disease gives hope to people with dementia and their carers." The plight of sufferers and their carers was brought home to millions two years ago when the film biography of the novelist Iris Murdoch was showered with awards for its touching and realistic portrayal of the writer's dementia. http://news.telegraph.co.uk/news/main.jhtml?xml=/news/2004/01/11/nalz11.xml&sSheet=/news/2004/01/11/ixhome.html/news/2004/01/11/nalz11.xml ===================================================================== --Hua Kul huaREMOVEkul@hotmail.com
Re: Human study: Clioquinol stops Alzheimer's disease
Author: k p Collins
Date: Tue, 13 Jan 2004 02:58
Date: Tue, 13 Jan 2004 02:58
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If one takes action that indiscriminantly 'blocks' the normal functions of zinc and copper ions, then one is blocking more than the roles that these ions play in the formation of 'plaques'. In my view, Alsheimer's results from larger dynamics in which the 3-D energydynamics that 'normally' focus selective addressing of the DNA-RNA are prematurely terminated, yielding incompletely- formed 'protein'-scraps that are what the "plaques" are. This's a classic instance of 'inability' to achieve sufficient TD E/I-minimization in which molecular- 'level' 3-D energydynamics are prematurely- terminated be-cause TD E/I-minimization does not procede to 'completion' - it's a "pawling" [AoK, Ap5]deficit within the TD E/I-minimization mech- anisms as they are discussed in AoK. The treatment that will work will re-establish the normal DNA-RNA-tuning durations by re-establish- ing the 'normal' functional-scopes of TD E/I-mini- mization. Look for the "pawling" deficit, and its causes. Blanket-blocking of this or that ion's action will not work. k. p. collins "Hua Kul" <gmp@adres.nl> wrote in message news:3da4c6e5.0401121755.7cecf1af@posting.google.com... > (The following is from the thread > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=afe2faf1 .0308141829.d00f6d2%40posting.google.com&rnum=2&prev=/groups%3Fhl%3Den%26lr% 3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dclioquinol%26btnG%3DGoogle%2BSearch%26met a%3Dgroup%253Dsci.life-extension) > > > Tim Tyler (tim@tt1.org) > > Subject: Re: Copper & Alzheimer's Disease > > > A report of a previous study: > > > ``Research teams at Harvard Medical School, the University of Melbourne, > > and Prana Biotechnology Ltd in Australia are working collaboratively on > > giving Alzheimer's-prone mice copper chelators, substances that sop up > > metals and eliminate them from the body. These new metal-binding drugs > > effectively "melted" the amyloid plaques in living mice in as little as > > nine weeks, and are now in clinical trials with Alzheimer's > > patients. Results of the first of these drugs, clioquinol, should be > > known within 12 months, and further trials of this approach are > > currently in preparation.'' > > > - http://www.infoaging.org/d-alz-9-r-metals.html > > -- > __________ > > |im |yler http://timtyler.org/ tim@tt1.org > > > Here is a small study indicating clioquinol virtually halted > progression of moderate AD in humans. > > ==================================================================== > 1: Arch Neurol. 2003 Dec;60(12):1685-91. Related Articles, Links > > Comment in: > Arch Neurol. 2003 Dec;60(12):1678-9. > > Metal-protein attenuation with iodochlorhydroxyquin (clioquinol) > targeting Abeta amyloid deposition and toxicity in Alzheimer disease: > a pilot phase 2 clinical trial. > > Ritchie CW, Bush AI, Mackinnon A, Macfarlane S, Mastwyk M, MacGregor > L, Kiers L, Cherny R, Li QX, Tammer A, Carrington D, Mavros C, > Volitakis I, Xilinas M, Ames D, Davis S, Beyreuther K, Tanzi RE, > Masters CL. > > Departments of Pathology, The University of Melbourne, The Mental > Health Research Institute of Victoria, Parkville, Victoria, Australia. > > BACKGROUND: Alzheimer disease (AD) may be caused by the toxic > accumulation of beta-amyloid (Abeta). OBJECTIVE: To test this theory, > we developed a clinical intervention using clioquinol, a > metal-protein-attenuating compound (MPAC) that inhibits zinc and > copper ions from binding to Abeta, thereby promoting Abeta dissolution > and diminishing its toxic properties. METHODS: A pilot phase 2 > clinical trial in patients with moderately severe Alzheimer disease. > RESULTS: Thirty-six subjects were randomized. The effect of treatment > was significant in the more severely affected group (baseline > cognitive subscale score of the Alzheimer's Disease Assessment Scale, > >/=25), due to a substantial worsening of scores in those taking > placebo compared with minimal deterioration for the clioquinol group. > Plasma Abeta42 levels declined in the clioquinol group and increased > in the placebo group. Plasma zinc levels rose in the > clioquinol-treated group. The drug was well tolerated. CONCLUSION: > Subject to the usual caveats inherent in studies with small sample > size, this pilot phase 2 study supports further investigation of this > novel treatment strategy using a metal-protein-attenuating compound. > > Publication Types: > Clinical Trial > Clinical Trial, Phase II > Randomized Controlled Trial > > PMID: 14676042 [PubMed - indexed for MEDLINE] > > http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_ui ds=14676042&dopt=Abstract > > ====================================================================== > > Here'a an article on the study. > > =============================================================== > Drug used to treat athlete's foot 'slows down Alzheimer's' > By Michael Day and Martyn Halle > (Filed: 11/01/2004) > > > A drug that is used in the treatment of athlete's foot could be used > to treat Alzheimer's disease, according to a new study by British > doctors. > > > Iris Murdoch, who died in 1999, and her husband John Bayley > The study, by a team from University College, London, found that > clioquinol, a drug that is also used to treat ear infections and > indigestion, can almost halt the progression of Alzheimer's. > > It discovered that clioquinol, which was developed 100 years ago, is > able to absorb the zinc and copper atoms that concentrate in the > brains of Alzheimer's sufferers before dementia sets in. > > Doctors believe that by absorbing these atoms, clioquinol can arrest > the onset of dementia, potentially helping thousands of people. > > Dr Craig Ritchie, a psychiatrist at UCL and a Medical Research Council > research fellow who led the trial, said that the results were "very > exciting". > > "The patients on this trial had Alzheimer's that was mild to moderate, > but there was very little change in their brains once they had started > treatment," he said. > > "This drug could give your mind a chance to stay healthy as long as > your body does. Particularly for patients who get this terrible > disease in middle age, we need better treatments." > > The study was prompted by research at Melbourne University in > Australia and Harvard University in the United States, which found > that clioquinol could prevent zinc from building up on the surface of > the brain. > > Academics from the universities speculated that by blocking zinc they > could halt, and possibly reduce, the brain damage that causes > Alzheimer's victims to lose their memory. > > To test their theory, the UCL doctors tested 13 Alzheimer's patients, > giving them clioquinol over a nine-month period, and 13 other > Alzheimer's sufferers who were given a placebo. > > The results, published in the Archives of Neurology, show that > patients given clioquinol retained significantly more mental capacity > than those who received the placebos. Dr Ritchie said that the > patients taking clioquinol experienced a decline in their mental > faculties of just 1.4 per cent. > > "You would normally see a drop of four points or more in someone with > Alzheimer's over the period of time we treated these patients," he > added. "For those taking the placebo, their mental decline was 8.9 per > cent. It's a very large gap and indicated that the drug was working." > > Alzheimer's affects one in 10 people over the age of 65, and almost > half of those aged 85 and over. > > The protective effect of clioquinol appears to be nearly twice as > great as that of the latest generation of Alzheimer's drugs, such as > donepezil, which are expensive and not always widely available. > > A survey by Pfizer, the drug company, revealed last week that the > availability of treatments, which cost up to �100 a month, varied > sharply across Britain. In the worst area, Lothian in Scotland, less > than �1 a head was spent on these drugs in the over-65 population > compared with more than �10 a head in Northern Ireland. > > Clioquinol should be much cheaper because it is no longer protected by > a patent. > > Prana Technology, an Australian drug firm, provided clioquinol for the > first small trial. Larger trials of the drug are expected to start > shortly and will include British patients. > > Dr Ritchie said that animal studies had suggested that the drug might > even reverse the progress of the dementia - something that current > treatments are unable to do. > > "We know that in mice the disease was reversed. Everyone is excited > but this was only a small trial and we have to do a larger trial. We > think this drug will produce the same results in extended trials with > humans. If we can get to them early, we might be able to treat > patients and leave them with very little damage to their brain." > > One fear over the long-term use of clioquinol is that it may damage > peripheral nerves and the nerves in the eye. Dr Ritchie said his team > found no evidence of this during their trial. > > Dr Susanne Sorensen, the head of research at the Alzheimer's Society, > said: "The UCL research suggests that there may be a novel use for > this already existing drug in the treatment of Alzheimer's disease. > But the trial is limited in its scale and we believe it would be > valuable to see a larger scale trial. > > "The potential for new drugs that may interfere with or revert the > progression of Alzheimer's disease gives hope to people with dementia > and their carers." > > The plight of sufferers and their carers was brought home to millions > two years ago when the film biography of the novelist Iris Murdoch was > showered with awards for its touching and realistic portrayal of the > writer's dementia. > > http://news.telegraph.co.uk/news/main.jhtml?xml=/news/2004/01/11/nalz11.xml& sSheet=/news/2004/01/11/ixhome.html/news/2004/01/11/nalz11.xml > > ===================================================================== > > > --Hua Kul > huaREMOVEkul@hotmail.com
Re: Human study: Clioquinol stops Alzheimer's disease
Author: Suzanne Gall
Date: Tue, 13 Jan 2004 04:12
Date: Tue, 13 Jan 2004 04:12
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Thanks for the info - but what's your point? In layman's terms please. "k p Collins" <kpaulc@[----------]earthlink.net> wrote in message news:D9JMb.5155$q4.1649@newsread3.news.atl.earthlink.net... > If one takes action that indiscriminantly 'blocks' the > normal functions of zinc and copper ions, then one > is blocking more than the roles that these ions play > in the formation of 'plaques'. > > In my view, Alsheimer's results from larger dynamics > in which the 3-D energydynamics that 'normally' > focus selective addressing of the DNA-RNA are > prematurely terminated, yielding incompletely- > formed 'protein'-scraps that are what the "plaques" > are. > > This's a classic instance of 'inability' to achieve > sufficient TD E/I-minimization in which molecular- > 'level' 3-D energydynamics are prematurely- > terminated be-cause TD E/I-minimization does > not procede to 'completion' - it's a "pawling" [AoK, > Ap5]deficit within the TD E/I-minimization mech- > anisms as they are discussed in AoK. > > The treatment that will work will re-establish the > normal DNA-RNA-tuning durations by re-establish- > ing the 'normal' functional-scopes of TD E/I-mini- > mization. > > Look for the "pawling" deficit, and its causes. > > Blanket-blocking of this or that ion's action will > not work. > > k. p. collins > > "Hua Kul" <gmp@adres.nl> wrote in message > news:3da4c6e5.0401121755.7cecf1af@posting.google.com... > > (The following is from the thread > > > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=afe2faf1 > .0308141829.d00f6d2%40posting.google.com&rnum=2&prev=/groups%3Fhl%3Den%26lr% > 3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dclioquinol%26btnG%3DGoogle%2BSearch%26met > a%3Dgroup%253Dsci.life-extension) > > > > > Tim Tyler (tim@tt1.org) > > > Subject: Re: Copper & Alzheimer's Disease > > > > > A report of a previous study: > > > > > ``Research teams at Harvard Medical School, the University of Melbourne, > > > and Prana Biotechnology Ltd in Australia are working collaboratively > on > > > giving Alzheimer's-prone mice copper chelators, substances that sop up > > > metals and eliminate them from the body. These new metal-binding drugs > > > effectively "melted" the amyloid plaques in living mice in as little > as > > > nine weeks, and are now in clinical trials with Alzheimer's > > > patients. Results of the first of these drugs, clioquinol, should be > > > known within 12 months, and further trials of this approach are > > > currently in preparation.'' > > > > > - http://www.infoaging.org/d-alz-9-r-metals.html > > > -- > > __________ > > > |im |yler http://timtyler.org/ tim@tt1.org > > > > > > Here is a small study indicating clioquinol virtually halted > > progression of moderate AD in humans. > > > > ==================================================================== > > 1: Arch Neurol. 2003 Dec;60(12):1685-91. Related Articles, Links > > > > Comment in: > > Arch Neurol. 2003 Dec;60(12):1678-9. > > > > Metal-protein attenuation with iodochlorhydroxyquin (clioquinol) > > targeting Abeta amyloid deposition and toxicity in Alzheimer disease: > > a pilot phase 2 clinical trial. > > > > Ritchie CW, Bush AI, Mackinnon A, Macfarlane S, Mastwyk M, MacGregor > > L, Kiers L, Cherny R, Li QX, Tammer A, Carrington D, Mavros C, > > Volitakis I, Xilinas M, Ames D, Davis S, Beyreuther K, Tanzi RE, > > Masters CL. > > > > Departments of Pathology, The University of Melbourne, The Mental > > Health Research Institute of Victoria, Parkville, Victoria, Australia. > > > > BACKGROUND: Alzheimer disease (AD) may be caused by the toxic > > accumulation of beta-amyloid (Abeta). OBJECTIVE: To test this theory, > > we developed a clinical intervention using clioquinol, a > > metal-protein-attenuating compound (MPAC) that inhibits zinc and > > copper ions from binding to Abeta, thereby promoting Abeta dissolution > > and diminishing its toxic properties. METHODS: A pilot phase 2 > > clinical trial in patients with moderately severe Alzheimer disease. > > RESULTS: Thirty-six subjects were randomized. The effect of treatment > > was significant in the more severely affected group (baseline > > cognitive subscale score of the Alzheimer's Disease Assessment Scale, > > >/=25), due to a substantial worsening of scores in those taking > > placebo compared with minimal deterioration for the clioquinol group. > > Plasma Abeta42 levels declined in the clioquinol group and increased > > in the placebo group. Plasma zinc levels rose in the > > clioquinol-treated group. The drug was well tolerated. CONCLUSION: > > Subject to the usual caveats inherent in studies with small sample > > size, this pilot phase 2 study supports further investigation of this > > novel treatment strategy using a metal-protein-attenuating compound. > > > > Publication Types: > > Clinical Trial > > Clinical Trial, Phase II > > Randomized Controlled Trial > > > > PMID: 14676042 [PubMed - indexed for MEDLINE] > > > > > http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_ui > ds=14676042&dopt=Abstract > > > > ====================================================================== > > > > Here'a an article on the study. > > > > =============================================================== > > Drug used to treat athlete's foot 'slows down Alzheimer's' > > By Michael Day and Martyn Halle > > (Filed: 11/01/2004) > > > > > > A drug that is used in the treatment of athlete's foot could be used > > to treat Alzheimer's disease, according to a new study by British > > doctors. > > > > > > Iris Murdoch, who died in 1999, and her husband John Bayley > > The study, by a team from University College, London, found that > > clioquinol, a drug that is also used to treat ear infections and > > indigestion, can almost halt the progression of Alzheimer's. > > > > It discovered that clioquinol, which was developed 100 years ago, is > > able to absorb the zinc and copper atoms that concentrate in the > > brains of Alzheimer's sufferers before dementia sets in. > > > > Doctors believe that by absorbing these atoms, clioquinol can arrest > > the onset of dementia, potentially helping thousands of people. > > > > Dr Craig Ritchie, a psychiatrist at UCL and a Medical Research Council > > research fellow who led the trial, said that the results were "very > > exciting". > > > > "The patients on this trial had Alzheimer's that was mild to moderate, > > but there was very little change in their brains once they had started > > treatment," he said. > > > > "This drug could give your mind a chance to stay healthy as long as > > your body does. Particularly for patients who get this terrible > > disease in middle age, we need better treatments." > > > > The study was prompted by research at Melbourne University in > > Australia and Harvard University in the United States, which found > > that clioquinol could prevent zinc from building up on the surface of > > the brain. > > > > Academics from the universities speculated that by blocking zinc they > > could halt, and possibly reduce, the brain damage that causes > > Alzheimer's victims to lose their memory. > > > > To test their theory, the UCL doctors tested 13 Alzheimer's patients, > > giving them clioquinol over a nine-month period, and 13 other > > Alzheimer's sufferers who were given a placebo. > > > > The results, published in the Archives of Neurology, show that > > patients given clioquinol retained significantly more mental capacity > > than those who received the placebos. Dr Ritchie said that the > > patients taking clioquinol experienced a decline in their mental > > faculties of just 1.4 per cent. > > > > "You would normally see a drop of four points or more in someone with > > Alzheimer's over the period of time we treated these patients," he > > added. "For those taking the placebo, their mental decline was 8.9 per > > cent. It's a very large gap and indicated that the drug was working." > > > > Alzheimer's affects one in 10 people over the age of 65, and almost > > half of those aged 85 and over. > > > > The protective effect of clioquinol appears to be nearly twice as > > great as that of the latest generation of Alzheimer's drugs, such as > > donepezil, which are expensive and not always widely available. > > > > A survey by Pfizer, the drug company, revealed last week that the > > availability of treatments, which cost up to �100 a month, varied > > sharply across Britain. In the worst area, Lothian in Scotland, less > > than �1 a head was spent on these drugs in the over-65 population > > compared with more than �10 a head in Northern Ireland. > > > > Clioquinol should be much cheaper because it is no longer protected by > > a patent. > > > > Prana Technology, an Australian drug firm, provided clioquinol for the > > first small trial. Larger trials of the drug are expected to start > > shortly and will include British patients. > > > > Dr Ritchie said that animal studies had suggested that the drug might > > even reverse the progress of the dementia - something that current > > treatments are unable to do. > > > > "We know that in mice the disease was reversed. Everyone is excited > > but this was only a small trial and we have to do a larger trial. We > > think this drug will produce the same results in extended trials with > > humans. If we can get to them early, we might be able to treat > > patients and leave them with very little damage to their brain." > > > > One fear over the long-term use of clioquinol is that it may damage > > peripheral nerves and the nerves in the eye. Dr Ritchie said his team > > found no evidence of this during their trial. > > > > Dr Susanne Sorensen, the head of research at the Alzheimer's Society, > > said: "The UCL research suggests that there may be a novel use for > > this already existing drug in the treatment of Alzheimer's disease. > > But the trial is limited in its scale and we believe it would be > > valuable to see a larger scale trial. > > > > "The potential for new drugs that may interfere with or revert the > > progression of Alzheimer's disease gives hope to people with dementia > > and their carers." > > > > The plight of sufferers and their carers was brought home to millions > > two years ago when the film biography of the novelist Iris Murdoch was > > showered with awards for its touching and realistic portrayal of the > > writer's dementia. > > > > > http://news.telegraph.co.uk/news/main.jhtml?xml=/news/2004/01/11/nalz11.xml& > sSheet=/news/2004/01/11/ixhome.html/news/2004/01/11/nalz11.xml > > > > ===================================================================== > > > > > > --Hua Kul > > huaREMOVEkul@hotmail.com > >
Re: Human study: Clioquinol stops Alzheimer's disease
Author: Hua Kul
Date: Tue, 13 Jan 2004 05:54
Date: Tue, 13 Jan 2004 05:54
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"k p Collins" <kpaulc@[----------]earthlink.net> wrote in message news:<D9JMb.5155$q4.1649@newsread3.news.atl.earthlink.net>... > > Blanket-blocking of this or that ion's action will > not work. > Apparently it did work. --Hua Kul
Re: Human study: Clioquinol stops Alzheimer's disease
Author: k p Collins
Date: Tue, 13 Jan 2004 09:53
Date: Tue, 13 Jan 2004 09:53
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I discussed a bit more [for folks who are familiar with other stuff that I've discussed], but the 'main point' is that a generalized 'washing' of zinc and copper ions won't cure Alzheimer's - unless the occurrence of zinc and copper ions within the brain is, itself, due to a disease eleswhere. [I should have looked things up before I posted my reply, but I'm 'tired', and it doesn't actually make a difference, any- way.] Cheers, Suzanne, ken "Suzanne Gall" <suzannegall@rogers.com> wrote in message news:zeKMb.2941$ZuL1.2560@twister01.bloor.is.net.cable.rogers.com... > Thanks for the info - but what's your point? In layman's terms please. > > "k p Collins" <kpaulc@[----------]earthlink.net> wrote in message > news:D9JMb.5155$q4.1649@newsread3.news.atl.earthlink.net... > > If one takes action that indiscriminantly 'blocks' the > > normal functions of zinc and copper ions, then one > > is blocking more than the roles that these ions play > > in the formation of 'plaques'. > > > > In my view, Alsheimer's results from larger dynamics > > in which the 3-D energydynamics that 'normally' > > focus selective addressing of the DNA-RNA are > > prematurely terminated, yielding incompletely- > > formed 'protein'-scraps that are what the "plaques" > > are. > > > > This's a classic instance of 'inability' to achieve > > sufficient TD E/I-minimization in which molecular- > > 'level' 3-D energydynamics are prematurely- > > terminated be-cause TD E/I-minimization does > > not procede to 'completion' - it's a "pawling" [AoK, > > Ap5]deficit within the TD E/I-minimization mech- > > anisms as they are discussed in AoK. > > > > The treatment that will work will re-establish the > > normal DNA-RNA-tuning durations by re-establish- > > ing the 'normal' functional-scopes of TD E/I-mini- > > mization. > > > > Look for the "pawling" deficit, and its causes. > > > > Blanket-blocking of this or that ion's action will > > not work. > > > > k. p. collins > > > > "Hua Kul" <gmp@adres.nl> wrote in message > > news:3da4c6e5.0401121755.7cecf1af@posting.google.com... > > > (The following is from the thread > > > > > > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=afe2faf1 > > > .0308141829.d00f6d2%40posting.google.com&rnum=2&prev=/groups%3Fhl%3Den%26lr% > > > 3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dclioquinol%26btnG%3DGoogle%2BSearch%26met > > a%3Dgroup%253Dsci.life-extension) > > > > > > > Tim Tyler (tim@tt1.org) > > > > Subject: Re: Copper & Alzheimer's Disease > > > > > > > A report of a previous study: > > > > > > > ``Research teams at Harvard Medical School, the University of > Melbourne, > > > > and Prana Biotechnology Ltd in Australia are working collaboratively > > on > > > > giving Alzheimer's-prone mice copper chelators, substances that sop > up > > > > metals and eliminate them from the body. These new metal-binding > drugs > > > > effectively "melted" the amyloid plaques in living mice in as little > > as > > > > nine weeks, and are now in clinical trials with Alzheimer's > > > > patients. Results of the first of these drugs, clioquinol, should be > > > > known within 12 months, and further trials of this approach are > > > > currently in preparation.'' > > > > > > > - http://www.infoaging.org/d-alz-9-r-metals.html > > > > -- > > > __________ > > > > |im |yler http://timtyler.org/ tim@tt1.org > > > > > > > > > Here is a small study indicating clioquinol virtually halted > > > progression of moderate AD in humans. > > > > > > ==================================================================== > > > 1: Arch Neurol. 2003 Dec;60(12):1685-91. Related Articles, Links > > > > > > Comment in: > > > Arch Neurol. 2003 Dec;60(12):1678-9. > > > > > > Metal-protein attenuation with iodochlorhydroxyquin (clioquinol) > > > targeting Abeta amyloid deposition and toxicity in Alzheimer disease: > > > a pilot phase 2 clinical trial. > > > > > > Ritchie CW, Bush AI, Mackinnon A, Macfarlane S, Mastwyk M, MacGregor > > > L, Kiers L, Cherny R, Li QX, Tammer A, Carrington D, Mavros C, > > > Volitakis I, Xilinas M, Ames D, Davis S, Beyreuther K, Tanzi RE, > > > Masters CL. > > > > > > Departments of Pathology, The University of Melbourne, The Mental > > > Health Research Institute of Victoria, Parkville, Victoria, Australia. > > > > > > BACKGROUND: Alzheimer disease (AD) may be caused by the toxic > > > accumulation of beta-amyloid (Abeta). OBJECTIVE: To test this theory, > > > we developed a clinical intervention using clioquinol, a > > > metal-protein-attenuating compound (MPAC) that inhibits zinc and > > > copper ions from binding to Abeta, thereby promoting Abeta dissolution > > > and diminishing its toxic properties. METHODS: A pilot phase 2 > > > clinical trial in patients with moderately severe Alzheimer disease. > > > RESULTS: Thirty-six subjects were randomized. The effect of treatment > > > was significant in the more severely affected group (baseline > > > cognitive subscale score of the Alzheimer's Disease Assessment Scale, > > > >/=25), due to a substantial worsening of scores in those taking > > > placebo compared with minimal deterioration for the clioquinol group. > > > Plasma Abeta42 levels declined in the clioquinol group and increased > > > in the placebo group. Plasma zinc levels rose in the > > > clioquinol-treated group. The drug was well tolerated. CONCLUSION: > > > Subject to the usual caveats inherent in studies with small sample > > > size, this pilot phase 2 study supports further investigation of this > > > novel treatment strategy using a metal-protein-attenuating compound. > > > > > > Publication Types: > > > Clinical Trial > > > Clinical Trial, Phase II > > > Randomized Controlled Trial > > > > > > PMID: 14676042 [PubMed - indexed for MEDLINE] > > > > > > > > > http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_ui > > ds=14676042&dopt=Abstract > > > > > > ====================================================================== > > > > > > Here'a an article on the study. > > > > > > =============================================================== > > > Drug used to treat athlete's foot 'slows down Alzheimer's' > > > By Michael Day and Martyn Halle > > > (Filed: 11/01/2004) > > > > > > > > > A drug that is used in the treatment of athlete's foot could be used > > > to treat Alzheimer's disease, according to a new study by British > > > doctors. > > > > > > > > > Iris Murdoch, who died in 1999, and her husband John Bayley > > > The study, by a team from University College, London, found that > > > clioquinol, a drug that is also used to treat ear infections and > > > indigestion, can almost halt the progression of Alzheimer's. > > > > > > It discovered that clioquinol, which was developed 100 years ago, is > > > able to absorb the zinc and copper atoms that concentrate in the > > > brains of Alzheimer's sufferers before dementia sets in. > > > > > > Doctors believe that by absorbing these atoms, clioquinol can arrest > > > the onset of dementia, potentially helping thousands of people. > > > > > > Dr Craig Ritchie, a psychiatrist at UCL and a Medical Research Council > > > research fellow who led the trial, said that the results were "very > > > exciting". > > > > > > "The patients on this trial had Alzheimer's that was mild to moderate, > > > but there was very little change in their brains once they had started > > > treatment," he said. > > > > > > "This drug could give your mind a chance to stay healthy as long as > > > your body does. Particularly for patients who get this terrible > > > disease in middle age, we need better treatments." > > > > > > The study was prompted by research at Melbourne University in > > > Australia and Harvard University in the United States, which found > > > that clioquinol could prevent zinc from building up on the surface of > > > the brain. > > > > > > Academics from the universities speculated that by blocking zinc they > > > could halt, and possibly reduce, the brain damage that causes > > > Alzheimer's victims to lose their memory. > > > > > > To test their theory, the UCL doctors tested 13 Alzheimer's patients, > > > giving them clioquinol over a nine-month period, and 13 other > > > Alzheimer's sufferers who were given a placebo. > > > > > > The results, published in the Archives of Neurology, show that > > > patients given clioquinol retained significantly more mental capacity > > > than those who received the placebos. Dr Ritchie said that the > > > patients taking clioquinol experienced a decline in their mental > > > faculties of just 1.4 per cent. > > > > > > "You would normally see a drop of four points or more in someone with > > > Alzheimer's over the period of time we treated these patients," he > > > added. "For those taking the placebo, their mental decline was 8.9 per > > > cent. It's a very large gap and indicated that the drug was working." > > > > > > Alzheimer's affects one in 10 people over the age of 65, and almost > > > half of those aged 85 and over. > > > > > > The protective effect of clioquinol appears to be nearly twice as > > > great as that of the latest generation of Alzheimer's drugs, such as > > > donepezil, which are expensive and not always widely available. > > > > > > A survey by Pfizer, the drug company, revealed last week that the > > > availability of treatments, which cost up to �100 a month, varied > > > sharply across Britain. In the worst area, Lothian in Scotland, less > > > than �1 a head was spent on these drugs in the over-65 population > > > compared with more than �10 a head in Northern Ireland. > > > > > > Clioquinol should be much cheaper because it is no longer protected by > > > a patent. > > > > > > Prana Technology, an Australian drug firm, provided clioquinol for the > > > first small trial. Larger trials of the drug are expected to start > > > shortly and will include British patients. > > > > > > Dr Ritchie said that animal studies had suggested that the drug might > > > even reverse the progress of the dementia - something that current > > > treatments are unable to do. > > > > > > "We know that in mice the disease was reversed. Everyone is excited > > > but this was only a small trial and we have to do a larger trial. We > > > think this drug will produce the same results in extended trials with > > > humans. If we can get to them early, we might be able to treat > > > patients and leave them with very little damage to their brain." > > > > > > One fear over the long-term use of clioquinol is that it may damage > > > peripheral nerves and the nerves in the eye. Dr Ritchie said his team > > > found no evidence of this during their trial. > > > > > > Dr Susanne Sorensen, the head of research at the Alzheimer's Society, > > > said: "The UCL research suggests that there may be a novel use for > > > this already existing drug in the treatment of Alzheimer's disease. > > > But the trial is limited in its scale and we believe it would be > > > valuable to see a larger scale trial. > > > > > > "The potential for new drugs that may interfere with or revert the > > > progression of Alzheimer's disease gives hope to people with dementia > > > and their carers." > > > > > > The plight of sufferers and their carers was brought home to millions > > > two years ago when the film biography of the novelist Iris Murdoch was > > > showered with awards for its touching and realistic portrayal of the > > > writer's dementia. > > > > > > > > > http://news.telegraph.co.uk/news/main.jhtml?xml=/news/2004/01/11/nalz11.xml& > > sSheet=/news/2004/01/11/ixhome.html/news/2004/01/11/nalz11.xml > > > > > > ===================================================================== > > > > > > > > > --Hua Kul > > > huaREMOVEkul@hotmail.com > > > > > >
Re: Human study: Clioquinol stops Alzheimer's disease
Author: k p Collins
Date: Tue, 13 Jan 2004 10:12
Date: Tue, 13 Jan 2004 10:12
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Cross-posted again. Forgive me, please, if I await further information. [Unless you can tell me that zinc and copper ions are not normal constituents of the brain.] k. p. collins "Hua Kul" <gmp@adres.nl> wrote in message news:3da4c6e5.0401122154.2a7e71c5@posting.google.com... > "k p Collins" <kpaulc@[----------]earthlink.net> wrote in message news:<D9JMb.5155$q4.1649@newsread3.news.atl.earthlink.net>... > > > > Blanket-blocking of this or that ion's action will > > not work. > > > > Apparently it did work. > > --Hua Kul
Re: Human study: Clioquinol stops Alzheimer's disease
Author: Darryl
Date: Tue, 13 Jan 2004 12:41
Date: Tue, 13 Jan 2004 12:41
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>Cross-posted again. > >Forgive me, please, if I await further information. > >[Unless you can tell me that zinc and copper >ions are not normal constituents of the brain.] > >> > Blanket-blocking of this or that ion's action will >> > not work. >> Apparently it did work. The abstract alone states this; however, it only mentions a decrease in one of the markers (Abeta42). I think we agree that chelation of divalent ions is not a good thing. Nevermind the fact that it's only a study of 36 subjects.
Re: Human study: Clioquinol stops Alzheimer's disease
Author: Thomas Carter
Date: Tue, 13 Jan 2004 18:18
Date: Tue, 13 Jan 2004 18:18
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"k p Collins" <kpaulc@[----------]earthlink.net> wrote in message news:<_vPMb.6552$i4.827@newsread1.news.atl.earthlink.net>...
> Cross-posted again.
>
> Forgive me, please, if I await further information.
>
> [Unless you can tell me that zinc and copper
> ions are not normal constituents of the brain.]
>
> k. p. collins
>
> "Hua Kul" <gmp@adres.nl> wrote in message
> news:3da4c6e5.0401122154.2a7e71c5@posting.google.com...
> > "k p Collins" <kpaulc@[----------]earthlink.net> wrote in message
> news:<D9JMb.5155$q4.1649@newsread3.news.atl.earthlink.net>...
> > >
> > > Blanket-blocking of this or that ion's action will
> > > not work.
> > >
> >
> > Apparently it did work.
> >
> > --Hua Kul
Hi,
K. P., apparently you have misunderstood the peer reviewed paper.
Whenever such an abstract accompanies a popular press article, give it
more attention. Only the pop article speaks of anything that could be
interpreted as "blanket-blocking". The abstract clearly referes to a
specific amyloid-ion effect.
I will also give you another little hint that could be quite
useful in furthering your general medical understanding. Theoretical
molecular considerations, espeacially the dubious type your seem to
place such stock in, must always take a back seat to clinical trials,
even small phase II ones.
If I had Alzheimer's, I would be on this Clioquinol like a duck on
a June bug, while awaiting further studies. I will never understand
why people have so much trouble appreciating the value of good
"risk/benefit" analysis.
Thomas
Re: Human study: Clioquinol stops Alzheimer's disease
Author: RArmant
Date: Wed, 14 Jan 2004 19:36
Date: Wed, 14 Jan 2004 19:36
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The major research paper to this study can be found at: http://www.pranabio.com/research/major_published_papers.asp
Re: Human study: Clioquinol stops Alzheimer's disease
Author: r norman
Date: Wed, 14 Jan 2004 20:46
Date: Wed, 14 Jan 2004 20:46
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On Wed, 14 Jan 2004 11:36:14 -0800, RArmant <av139@lafn.org> wrote: >The major research paper to this study can be found at: >http://www.pranabio.com/research/major_published_papers.asp > Only the more severely affected patients in a limited pilot Phase 2 clinical trial benefitted from the treatment. This is a potentially very usefule and important development, but it is a far cry from the subject line of this post: "Clioquinol STOPS Alzheimer's disease"! The unwary reader may easily get a very wrong impression.
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