Medical Forum / Diseases and Disorders / Alzheimer's / August 2007
Cocktails and A;zheimers
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ironjustice@aol.com - 13 Aug 2007 20:57 GMT <<snip>> implementation of iron chelation <<snip>>
doi:10.1016/j.pneurobio.2007.06.001 Copyright © 2007 Elsevier Ltd All rights reserved. Iron dysregulation in Alzheimer's disease: Multimodal brain permeable iron chelating drugs, possessing neuroprotective-neurorescue and amyloid precursor protein-processing regulatory activities as therapeutic agents
Silvia Mandela, Tamar Amita, Orit Bar-Ama and Moussa B.H. Youdim, a, aEve Topf and USA NPF Centers of Excellence, Technion-Faculty of Medicine, Department of Pharmacology, Israel Received 20 December 2006; revised 11 April 2007; accepted 11 June 2007. Available online 19 June 2007.
Abstract
Considering the multi-etiological character of Alzheimer's disease (AD), the current pharmacological approaches using drugs oriented towards a single molecular target possess limited ability to modify the course of the disease and thus, offer a partial benefit to the patient. In line with this concept, novel strategies include the use of a cocktail of several drugs and/or the development of a single molecule, possessing two or more active neuroprotective-neurorescue moieties that simultaneously manipulate multiple targets involved in AD pathology. A consistent observation in AD is a dysregulation of metal ions (Fe2+, Cu2+ and Zn2+) homeostasis and consequential induction of oxidative stress, associated with beta-amyloid aggregation and neurite plaque formation. In particular, iron has been demonstrated to modulate the Alzheimer's amyloid precursor holo- protein expression by a pathway similar to that of ferritin L-and H- mRNA translation through iron-responsive elements in their 5′UTRs. This review will discuss two separate scenarios concerning multiple therapy targets in AD, sharing in common the implementation of iron chelation activity: (i) novel multimodal brain-permeable iron chelating drugs, possessing neuroprotective-neurorescue and amyloid precursor protein-processing regulatory activities; (ii) natural plant polyphenols (flavonoids), such as green tea epigallocatechin gallate (EGCG) and curcumin, reported to have access to the brain and to possess multifunctional activities, such as metal chelation-radical scavenging, anti-inflammation and neuroprotection.
Keywords: Alzheimer's disease; Aβ-peptide; Iron homeostasis; APP mRNA; Multi-functional drugs; Iron-chelator
Abbreviations: AD, Alzheimer's disease; ALS, amyotrophic lateral sclerosis; APP, amyloid precursor protein; BDNF, brain-derived neurotrophic factor; Aβ, beta-amyloid peptide; β-CTF, beta-C-terminal fragment; EGCG, epigallocatechin gallate; DFO, desferrioxamine; ERK1/2, extracellular signal-regulated kinases 1 and 2; GAP-43, growth- associated protein-43; HFE, haemochromatosis; HO-1, heme oxygenase; HIF, hypoxia-inducible factor; IREG-1, iron regulated transporter protein-1; IRP, iron regulatory protein; NFT, neurofibrillary tangles; PHFτ, hyperphosphorylated τ; OS, oxidative stress; PD, Parkinson's disease; PKC, protein kinase C; sAPP α, soluble APPα; ROS, reactive oxygen species
Corresponding author at: Department of Pharmacology, Technion-Faculty of Medicine, P.O.B. 9697, 31096 Haifa, Israel. Tel.: +972 4 8295290; fax: +972 4 8513145.
Progress in Neurobiology Volume 82, Issue 6, August 2007, Pages 348-360
Who loves ya. Tom
Jesus Was A Vegetarian! http://jesuswasavegetarian.7h.com
Man Is A Herbivore! http://tinyurl.com/a3cc3
DEAD PEOPLE WALKING http://tinyurl.com/zk9fk
stopalz@gmail.com - 14 Aug 2007 15:02 GMT On Aug 13, 4:57 pm, "ironjust...@aol.com" <ironjust...@aol.com> wrote:
> <<snip>> > implementation of iron chelation [quoted text clipped - 71 lines] > DEAD PEOPLE WALKING > http://tinyurl.com/zk9fk Please, pay attention, this is quite new, the paper published at the J Neurol (Barcelona) at the beginning of 2007
THE ALTERNATIVE THEORY FOR THE ALZHEIMER PROCESS
DIFFUSION TEXT ALZHEIMER PROJECT ARGENTINE, AUGUST 2007
The Chronic Progressive Dementization, (CPD), the scientific name of that vulgarly called alzheimer, is a quite different question than depression, different types of psychosis and obviously of sometimes surprising behaviors of the normal aging, and in the long run much more serious.
Although the final phase of cerebral disintegration is similar, there are two types of processes: the one that occurs in young adults or greater adults, and another different one that it happens in very greater adults, around 80 years or more. In these, at the final phase the problem it is “simply” the loss of the vital motivation, the exhaustion of desire to continue living. Abandonment of dreams, as Miguel de Unamuno would say on the cession of such dreams that Don Quixote in favor of Sancho did, and then, obviously, dying.
Persons with risk for a CPD (alzheimer) are those that generally have an introverted personality, few and restricted social relations, with and isolation tendency, coping deficit for difficulties and losses, tendency to depend on others, to had constructed their personal identity in the shade of another one (the woman of the doctor, the husband of…) or some other equivalent transference, tendency to be obstinate to proper painful events or of the other’s life, which is diagnosed in general like depression.
THEN, IN ANY WAY IT TOUCHES TO ANYONE.
There is nothing of chance’s dependence, neither suddenly nor no magician in it. Logically with advance into years the probability that these people suffer a painful loss increases, obviously, like everybody. With its coping deficit the risk increases enormously when they have a painful loss, for example her husband who gave or lent the personal identity, or a son or daughter who gave sense to their life, of their work that justified the existence to him, of their corporal and mental capacity to which he had bet or concentrated, and when not counting on a familiar network and a social network that stopped its fall after the duel impossible to elaborate and to go on, the person collapses.
It is the beginning of the aim. It can have 40 years old (the younger case than we have was a woman of 38 years), or 80 yo. It does not related to aging, but only that when they advance the years is more probable that we suffer painful losses. Until this moment its brain is totally normal, does not show absolutely anything abnormal and is totally useless to want to see something in images or less even in electroencephalograms, that it is something so coarse and inadequate as a toad arrives of a luxurious piano of tail.
The landslide of the person, its “delivery” as much in the dictionary of the Real Spanish Academy like in the original dictionaries of all the languages, is expressed in the idea to wish to die, in the fixation of the attention in its own one and wished death. Then the abnormal thing begins, the unnatural thing, the destructive thing, because in fact we are programmed biologically, ancestrally, for all the opposite, as it is to explore, to fight, to defend to us, to hunt (in the literal sense and the symbolic sense), to attack, to ask to us, to inquire to us, and our attention concentrated in each objective part of a basic alert status that we never lose, except for when we slept very well. We are not programmed to give to us tamely, as it is not it in any animal.
How takes place then the cerebral damage that leads to the death?
To understand this we need to explain some very basic things, although surprising little known. In the first place that we have nine senses: vision, hearing, equilibrium, tact, space perception/orientation, taste, sense of smell, sense of strange it (or familiarity sense) and of the corporal perception. All these senses, and perhaps others more, are active in the basic alert status and they have two components: an automatic one of immediate reaction (one falls in love a light and blinking, it smells sulphydric vapors, the substance that is put to the gas tubes to detect a loss immediately, and I separate, etc.), and another component of recognition, in which the stimuli are sent to the brain and there it is collated if that information has been loaded. They are the sensorial recognition systems we have.
Then, EVERYTHING WHAT WE DO, EVERYTHING WHAT WE THOUGHT, BY MORE BANAL OR INSIGNIFICANT THAN IS, IS RECORDED IN THE BRAIN IN FORM OF NEURONAL NETWORK IN WHICH PARTICIPATE NEURONS OF THIS SENSORIAL RECOGNITION ´S SYSTEMS OF THE NINE CHANNELS, INEXORABLY.
And those networks that are armed in our brain also were reinforced when we return to make the same act or the same thought. But in addition BECAUSE IN FACT ALL IS CONCECTED WITH ALL, WHICH WE ARE GOING TO DO WAS CONNECTED IN MORE OR LESS STRAIGHT FORWARD FORM WITH WHICH ALREADY WE HAVE DONE AND LOADED LIKE NEURONAL NETWORKS IN OUR BRAIN.
Some of those connections have a great importance in the every day actions and others very remotely: although the door seems to be very heavy, already we know that the force that we must make to open it isn’t so high. Or for example the natural attraction by rhythm that are multiple or sub multiple of the heart rate (that we listened for the first time in our mother’s uterus), seems like related with this indeed. That is to say, to live means to be stimulating everything somehow what we have done, lived and thought. It seems exhausting, but it is a fascinating question.
However, when a person fix attention to death, that is something abstract that does not required any motor or cognitive reply, AND RESORTING TO THE NATURAL AND AVAILABLE MECHANISM DISPOSED IN ALL PERSONS THEY TO BLOCK THE RECEPTION OF OTHER STIMULI WHEN WE CONCENTRATED THE ATTENTION IN SOMETHING INTENSIVELY ATTRRACTED, THESE PEOPLE HAPPEN TO BLOCK, at the outset in oscillating form, with variations throughout a day or of days, THE SENSORIAL STIMULI OF THE DIFFERENT CHANNELS. It is a biological basic mechanism since we must be concentrated in the tiger that attacks to us and we cannot disperse with the colored birds that are jumping back: it’s a survival principle. Who know more the utility of this principle are the pickpockets of the human agglomerates: one of them produces a smaller but clear aggression on the victim. In reaction the victim is put in guard and concentrates its attention on the aggressor, while his companion removes the wallet or cuts the portfolio’s strap, because we have blocked the tact and the corporal perception when putting to us in guard in front of the aggressor and concentrating the attention in him.
The displacement of the attention towards different objectives is a normal and a routinely task, but in the people who enter CPD process they are persistently blocking the reception of stimuli by the different sensorial channels and the consequent arrived to the brain, so that the neurons of the sensorial recognition systems that comprise of the sensorial networks doesn’t receive stimuli, with which in the long run lose the synaptic connections and the networks are disarmed. Something equivalent to the atrophy of a muscle we never use. This avoid progressively all the recognition tasks. No longer they recognize, no longer have capacity of recovery of recent events (weak neuronal networks, with low sensorial stimulation), and however still can recover events of the past. But not anyone, but THOSE IN WHICH THE LIVED EVENTS (SENSORIAL NETWORKS ARMED IN THE PAST) WERE POSSIBLE WITH A GREAT STIMULATION (EMOTIONAL), PROLONGED REINFORCED AND CONNECTED WITH MULTIPLE OTHER SENSORIAL NETWORKS, LIKE THE DOOR OF OUR HOME AT OUR CHILDHOOD, by where we did not shelter, by where we shook to arrive all smeared, by where we arrived to eat, etc.
Thus, those faults of the systems of sensorial recognition were the more consistent biological indicators to detect that a person is in a dementia of this type.
THE PROGRESSIVE DISINTEGRATION OF THE NEURONAL NETWORKS IN OUR BRAIN BY STIMULATION DEFICIT OF THE RECOGNITION SENSORIAL SYSTEMS IS THE ESSENCE OF THE DEMENTIZATION PROCESS, AND LEADS TO THE DEATH BECAUSE AN AUTOMATIC ESSENTIAL SYSTEM HAS CONNECTIONS WITH SENSORIAL NETWORKS YOU, THAT WHEN ALSO THEY GET TO BE AFFECTED, CAUSES THE DEATH.
Then isn’t properly a disease (“signs and symptoms that responds to a well-known cause”), isn’t genetic, it doesn’t have relation with aging (confusion comes from that to greater age is the probability of suffering painful losses, that are a very frequent trigger one, since we have already said), does not begin with any damage in the brain but that concludes in the long run in this, isn’t a problem of the memory but of the attention, and before this one of the desire, and before this one of the satisfaction search, and before this one of the biological and psychological impulsions arranged by the will, and even before the basal state of alert that characterizes to us. One of the last forms of the expression of the process is the problem with the memory, but in fact the difficulty to recover events is the last link of a very long chain, and to have concentrated in it and not in the attention’s deficit of can be the reason of the delayed to understand the process, we think.
And finally, isn’t irreversible, since it is possible and it gives clear and forceful result, to elevate to those people the self-esteem and the attention to him, and to permute the abstract idea to him of death wished by the one of real life that surrounds it, the shade by the light that surrounds us to all to little that we lend a little attention, taken care of and love, and inserting it in a new extolling routine for the dairy life. It is not easy, is an abyss of difference with giving a tablet, but it is tremendously positive as much for the affected ones as for which we worked with the protocols derived from the psycho-social neuro sensorial disintegrative theory of the chronic progressive dementization.
Prof.Lic.Luis María Sánchez de Machado, Neurobiologist, Director, Alzheimer´s Project Argentina TE 0054 3442 431442 stopalz@gmail.com www.stopalz.org
Bud - 14 Aug 2007 18:21 GMT >> implementation of iron chelation Talketh much but sayeth little. ;-)
august - 14 Aug 2007 20:18 GMT On Aug 13, 4:57 pm, "ironjust...@aol.com" <ironjust...@aol.com> wrote:
> <<snip>> Prof.Lic.Luis María Sánchez de Machado, Neurobiologist, Director, Alzheimer´s Project Argentina
You are replying to a well known troll - internet troublemaker. The best place for ironjustice is in your kill file.
California Poppy - 14 Aug 2007 23:13 GMT On Aug 14, 7:02�am, "stop...@gmail.com" <stop...@gmail.com> wrote:
> Prof.Lic.Luis Mar�a S�nchez de Machado, > Neurobiologist, Director, > Alzheimer�s �Project Argentina > TE 0054 3442 431442 � stop...@gmail.com � �www.stopalz.org There are multiple causes of dementia. One of them is Alzheimer's. Another is atherosclerosis. A third is a stroke. All of them are inherited and we don't know how to cure any of them.
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