Russell L. Blaylock, MD
Presentation + Questions & Answers
For ADD-Holistic Discussion Group
http://www.HolisticMed.Com/add/
Date: Sun, 30 Aug 1998 22:57:34 -0400 (EDT)
From: Mark Gold
To: add-holistic@mLists.net
Subject: ADD Introduction of Visiting Expert
Hi!
It is an honor to introduce our next Visiting Expert, Russell L. Blaylock,
MD. He is both an very experienced clinician and one of the world's most
knowledgable experts on one of the categories of toxic substances I
referred to in my last post. Here is Dr. Blaylock's bio:
I am a board certified neurosurgeon engaged in a private neurosurgical
practice for the past 21 years. During this time I have had a strong
interest in nutritional treatment of neurological disorders and in the
biochemical basis of diseases of the nervous system. ADD and ADHD have been
a part of my interest because of the relationship to the excitotoxic
process. In 1994 I wrote a book on this subject, Excitotoxins, The Taste
That Kills, and revised and updated it in 1998. I have written and
illustrated three chapters in medical textbooks and a patient care booklet
on multiple sclerosis. In addition I have published several papers in peer
reviewed journals on a variety of subjects from the pathology and treatment
of pituitary tumors to immunothearpy of brain tumors. I have appeared on
the 700 Club approximately 7 times, Life Style Magazine once, and 30 plus
syndicated radio programs discussing the book. While I do not treat ADD in
my practice, I have given advice to a number of mothers and have found that
a significant number improve and some quite dramatically.
I want to add that Dr. Blaylock's book, "Excitotoxins, The Taste That
Kills" is one of the best and most-readable sources of information (for
the public and practitioners) on excitotoxins (which play a large role in
many neurological disorders). I learned quite a bit from his book as well
as from his articles on the nutritional treatment of such disorders.
Dr. Blaylock's opening post should be sometimes on Monday.
Best Wishes,
- Mark
mgold@holisticmed.com
Holistic Healing Web Page
http://www.HolisticMed.com/
Date: Tue, 1 Sep 1998 18:36:30 -0500
To: add-holistic@mlists.net
From: "Russell Blaylock, M.D."
Subject: Post
My interest in ADD and ADHD arose from my studies on the process of
excitotoxicity. Excitotoxicity is a neurological phenomenon associated with
certain amino acids that produce a delayed degeneration of particular
neurons when exposure occurs outside the cell. This process has been
proposed as the central event in many neurological disorders, including
strokes, head injury, migraines, hypoglycemia, ischemia/hypoxia as well as
causing toxicity directly. We know that several of these excitotoxins play
a vital role in brain development, primarily glutamate and aspartate. It
must be appreciated that glutamate is the most abundant neurotransmitter in
the brain. But, elaborate steps are taken to assure that extracellular
concentrations of this substance remain only for a very short time (
milliseconds) and in very low concentrations.
During brain development, there are wide physiological fluctuation in
glutamate brain levels. This series of events plays a vital role in brain
development. Too much or too little glutamate can result in abnormal
development of the brain. For example, high concentration of glutamate in
utero can cause neuron death in special brain areas and even abnormal
formation of brain pathways. That is, the brain is mis-wired. This can
result in anything from mild learning difficulties to severe
neuroendocrine, behavioral and learning deficits. There is some evidence,
for example, that abnormally low concentrations of glutamate at critical
times can result in schizophrenia. Some neuroscientist are suggesting that
such conditions as ADD, ADHD and autism may be cause by such glutamate
abnormalities.
Clinically, we know that many such children will significantly improve when
taken off foods containing excitotoxins, such as MSG ( and its many
disguised forms) and aspartame. It appears that several neurotransmitters
are abnormally functioning in ADD, such as dopamine, norepinephrine,
serotonin, histamine, and acetylcholine. Almost a decade ago, it was found
that feeding pregnant animals MSG produced a form of learning difficulty
similar to ADD. The offspring had normal simple learning but showed
profound defects in complex learning. In a followup study of these
offspring, it was found that they had an 80% reduction in frontal lobe
acetylcholine levels and a 50% reduction in norepinephrine. The latter
plays a vital role in attention and ability to focus. We also know that
dopamine plays a vital role in performance and memory. Serotonin deficiency
appears to play a vital role in violent and antisocial behavior.
It is also of interest that a significant number of these children are
reactive hypoglycemics. We know that hypoglycemia not only precipitates the
release of glutamate in the brain, but that magnifies the toxic effect of
all excitotoxins. Unfortunately, many food have excitotoxins added to them
as taste enhancers.
The approach to this disorder requires first, the removal of all food borne
excitotoxins. This must be done as early as possible. The longer and more
intense the exposure the more likely permanent damage will develop.
Manipulating the various neurotransmitters by nutritional means is the next
step. This involves several avenues of approach. Each step requires
patience. Other methods, such as biofeedback, can be helpful during this
period. Remember, biofeedback can alter brain chemistry. We still have much
to learn about this disorder. You should also be aware that every child is
different. Treatment has to be tailored to each individual case.
Date: Wed, 2 Sep 1998 22:44:49 -0400 (EDT)
From: Mark Gold
To: add-holistic@mLists.net
Subject: ADD Question for Dr. Blaylock
Dr. Blaylock,
Thank you very much for your opening post! I have a couple of questions.
- You mention ischemia/hypoxia as causing excitotoxicity. Besides
the fetus being exposed to to food-borne excitotoxins, are there
any other events that can lead to the fetus being exposed to high
levels of excitotoxins? One lady recently mentioned that the cord
was wrapped around the fetus' neck. Would that cause hypoxia and
potentially lead to excitotoxicity?
- Are there certain nutrients/supplements that you recommend for persons
who have suffered from traumatic brain injury, hypoxia, and other
events that lead to excitotoxicty? I believe you said that your
suggestions are individualized. But are there any important nutrients
or supplements that are common to these cases?
- If someone (a child for example) is exposed to an excitotoxin, will
they have some immediate symptom which signifies that it is causing
damage?
I believe that Dr. Blaylock lists various forms of food-borne excitotoxins
in his book (for those who are interested).
Thanks.
Best Wishes,
- Mark
From: FJBCIII@aol.com
Date: Thu, 3 Sep 1998 16:11:07 EDT
To: add-holistic@mLists.net
Subject: Re: ADD Opening Post from Dr. Russell Blaylock
In a message dated 98-09-02 22:49:17 EDT, you write:
<< The approach to this disorder requires first, the removal of all food borne
excitotoxins. This must be done as early as possible. >>
Dr. Blaylock
If possible , could you list a more indepth list of food borne excitotoxins
for us viewers in the list ?, thanks ...
Aloha
Frank
Date: Thu, 3 Sep 1998 19:39:02 -0500
To: add-holistic@mlists.net
From: "Russell Blaylock, M.D."
Subject: ADD excitotoxins
Thanks for the questions.
- Concerning the person who inquired about the baby having the unbilical
cord wrapped around its neck, and the relationship to hypoxia induced
excitotoxicity. If the cord was indeed compressing the carotid arteries or
interfering with breathing then sufficient hypoxia/ischemia to the baby's
brain could occur and produce a rise in brain glutamate and aspartate
levels. This is a natural response to low oxygen levels (hypoxia) and
reduced blood supply ( ischemia). The degree of damage would depend on the
severity of the hypoxia/ischemia episode and its duration. We know that the
fetal brain is especially sensitive to excitotoxic injury. And, as I stated
in the post, excitotoxin excess during these critical developmental stages
can result in destruction of groups of brain cells ( called nuclei) and
alter how the brain's pathways would form.
The former would cause damage to such critical areas as the arcuate nuclei
( most sensitive), supraoptic nuclei and paraventricular nuclei of the
hypothalamus. This can result in endocrine problems later in life. It is
interesting that thyroid problems have been seen in cases of ADD with
increased frequency. In fact, hypothalamic axis disorders are seen in 50%
of such children. This could present as problems with reproduction later in
life, thyroid problems, adrenal problems, or weight problems, as well as
behavioral difficulties. Obesity is one of the most common defects seen
with excitotoxin hypothalamic damage. It is ironic that we are seeing a
significant rise in childhood obesity and ADD.
Abnormal pathway development means that the connections ( that number in
the trillions) between neurons would be altered. Minor alterations may
cause little problems, but major alterations could result in severe
learning difficulty, episodic outburst of violence, emotional dyscontrol
and attention problems. In my book I have a whole chapter on the effects of
excitotoxins on brain development. As I stated in my post, experimentally
it has been shown that fetal exposure to maternal glutamate ( as MSG)
resulted in profound changes in brain neurotransmitters that persisted
until adulthood. It has also been shown that early postnatal exposure to
glutamate can result in a 56% rise in brain free radical levels over
several years.
- As for nutritional ways to prevent excitotoxicity, there are several
principles that have shown benefit. We know, for example, that low energy
supply to neurons greatly magnifies excitotoxicity. An example of this
would be hypoglycemia, which can be very common in newborns and toddlers.
For example, poor dietary intake during illness, or with prolonged
diarrhea, aspirin consumption, and sensitivity to certain amino acids, such
as leucine sensitivity, can all cause hypoglycemia. This can not only
magnify excitotoxicity but can cause the brain to release its stores of
glutamate as well.
Second, low magnesium also magnifies excitotoxicity. This can occur with
vomiting, poor dietary intake of prolong diarrhoea. Magnesium
supplementation protects the brain from excitotoxic damage.
Here is a short list of supplements shown to protect against excitotoxicity:
- acetyl- L- carnitine
- Phosphotidylserine
- Vitamin C, E, and the carotonoids ( beta carotene, lycopene, alpha
carotene, etc)
- Coenzyme Q10
- N-acetyl-l-cysteine ( NAC)
- magnesium
- methylcobalamin ( Vitamin B12)
- pyridoxine, thiamine, riboflavin, niacinamide
- grape seed extract ( and other flavonoids)
- Zinc
- Juice plus+ is a well compounded formula with high concentrations of
flavonoids, vitamins and minerals.
The dose depends on size and weight of the child or age of adult.
Supplements to avoid:
- cysteine
- glutathione (converted to cysteine in brain )
- glycine
- aspartate
- aspartame
N-acetyl-L-cysteine is safe because it is converted to cysteine within the
neuron, where it is then converted to glutathione. Cystine is also safe.
- As for a list of excitotoxin names in food, the major ones are:
- hydrolyzed vegetable protein
- vegetable protein
- textured protein
- hydrolyzed soy protein ( or any other processed protein)
- natural flavoring
- sodium or calcium caseinate
- yeast extract ( autolyzed yeast extract)
- monosodium glutamate ( or potasium glutamate)
- aspartame, NutraSweet, equal
- accent
- malt flavoring or extract
- broth
- bouillon
- stock
There are more, so see book. The food industry changes the names all the time.
From: FJBCIII@aol.com
Date: Thu, 3 Sep 1998 23:41:18 EDT
To: add-holistic@mLists.net
Subject: Re: ADD excitotoxins
In a message dated 98-09-03 21:39:20 EDT, you write:
<< As for a list of excitotoxin names in food, the major ones are:
hydrolyzed vegetable protein
vegetable protein
textured protein
hydrolyzed soy protein ( or any other processed protein)>>>>>>
Hi i am not sure why protein is listed as excitotoxins...
I take up to 40 grams a day Organic Brown Rice protein (processed with
enzymes) and i find that i have good assimulation of it with no adverse
stimulation of my condition, in fact , it really does the opposite ... but
,whey , Soy and a milk and egg protein give me the undesired effect .. could
you elaborate more on Proteins and processed and their effects .....
Date: Fri, 4 Sep 1998 13:29:37 -0500
To: add-holistic@mlists.net
From: "Russell Blaylock, M.D."
Subject: ADD Processed proteins
Concerning the question about hydrolyzed protein products. First, you must
keep in mind that in most cases the food processing companies are adding
processed proteins for the specific purpose of taste enhancement, not
nutrition. Therefore, they choose sources that are known to have high
contents of taste enhancing excitatory amino acids- such as glutamate,
aspartate, and cysteine. Soy, whey, and milk proteins meet those criteria.
By hydrolyzing them or treating them with protease enzymes, they can
concentrate these amino acids.
Organic brown rice, probably has rather low concentrations of these three
excitotoxins, and this is why you are able to tolerate it better than soy,
whey or milk protein. But, you should also be aware that
" feeling" better is a rather poor way to judge toxicity. Amphetamines,
cocaine and other neurostimulant drugs can also produce a sense of euphoria
or well being, yet they are quite neurotoxic. Also, many of the toxic
effects of excitotoxins are quite subtle, so that those being affected may
notice little outward effects for years. But, this subtle damage can, over
a long period of time, produce serious neurological disorders. Take for
example thyroid deficits induced by glutamate exposure. One may feel tired,
cold intolerant and develop many subtle symptoms that they, as well as
their physicians, would never connect to excitotoxin exposure. The same is
true of behavioral problems, learning difficulties, episodic violence, etc.
Yet, throughout this period of development they may feel " fine".
Hydrolyzed vegetable protein is the most dangerous of the protein products
because it contain three powerful excitotoxins as well as carcinogenic
substances. Its use is growing every day. Chicken is painted with it and
even injected with it. A new program is calling for the spraying of
vegetable crops with MSG. So, the use of excitotoxins is growing very
rapidly.
From: FJBCIII@aol.com
Date: Fri, 4 Sep 1998 18:37:37 EDT
To: add-holistic@mLists.net
Subject: Re: ADD Processed proteins
What would be suggested for protein nourishment? lets say for a developing 7
month old ( genetically predispositioned to ADHD )that isnt able to breast
feed (momie is dried up) and Similac is full of sugar and whey....
also what choices do we have to avoid these excitotoxins in diet for protein
resources?
Thanks for you answers
Aloha Frank
From: FJBCIII@aol.com
Date: Fri, 4 Sep 1998 18:43:08 EDT
To: add-holistic@mLists.net
Subject: Re: ADD Processed proteins
In a message dated 98-09-04 15:27:35 EDT, you write:
<< Organic brown rice, probably has rather low concentrations of these three
excitotoxins, and this is why you are able to tolerate it better than soy,
whey or milk protein. >>
where would you suggest that i get my protein from ?
The Organic Brown rice protein has notheing added to it for flavor , it is
very bland ..
From: Cpperwmn@aol.com
Date: Fri, 4 Sep 1998 19:45:22 EDT
To: add-holistic@mLists.net
Subject: Re: ADD Processed proteins
In a message dated 9/4/98 12:27:35 PM Pacific Daylight Time,
russell@mail.misnet.com writes:
<< Its use is growing every day. Chicken is painted with it and
even injected with it. A new program is calling for the spraying of
vegetable crops with MSG. So, the use of excitotoxins is growing very
rapidly.
>>
I don't doubt this for a moment! But, what is the purpose of painting a
chicken, or spraying the crops with MSG? (Is that how the giant gets 'tender'
young peas?) How does it enhance (?) the chicken? Does the MSG double as a bug
repellant, or such?
Copper
Date: Fri, 04 Sep 1998 19:00:06 -0700
To: add-holistic@mLists.net
From: Amy
Subject: ADD Processed proteins
At 01:29 PM 9/4/98 -0500, Blaylock wrote:
>Hydrolyzed vegetable protein is the most dangerous of the protein products
>because it contain three powerful excitotoxins as well as carcinogenic
>substances. Its use is growing every day. Chicken is painted with it and
>even injected with it. A new program is calling for the spraying of
>vegetable crops with MSG. So, the use of excitotoxins is growing very rapidly.
What? Why? How? How can we be going backwards? Who is behind all these
additions to our foods? ACKKKKKKKKKKKKKK
Love,
Amy
Date: Sat, 5 Sep 1998 16:42:08 -0500
To: add-holistic@mlists.net
From: "Russell Blaylock, M.D."
Subject: ADD excitotoxins and proteins
Several questions addressed the topic of processed proteins. It appears
that many do not quite understand the process. First, it is well known that
certain amino acids ( the building blocks of proteins) act by stimulating
certain neurons to the point that they will die ( excitotoxicity). It has
been observed that these amino acids ( primarily glutamate, aspartate and
cysteine) can greatly magnify the pleasant taste of foods. Following a
conference in 1945, involving most of the major food processors, glutamate,
in the form MSG, was added to numerous foods, especially soups and packaged
food products. Since that time many other forms of high glutamate additives
have been discovered, including casinate and hydrolyzed vegetable protein.
Some foods, including toddler foods, will contain two or even four such
taste enhancing excitotoxic amino acids.
Recently, several of the poultry processing houses, have either dipped,
painted or injected such excitotoxin taste additives in their chicken meat
and turkey meat products. You can read it on the package yourself if you
are in doubt. The purpose is to enhance the taste of the chicken, etc.
It has been demonstrated over and over in numerous neuroscientific studies
that infants are significantly more sensitive to such food borne
excitotoxins than are adults. In fact, babies are 4X more sensitive than
adults. Why they have decided to begin spraying vegetable crops with MSG is
beyond me, but it too is a fact.
We also know that the toxic effects of excitotoxins are dose dependent, and
that subtoxic doses, given over a course of time, are additive to the
point of being fully toxic as would be a single dose. What this means is,
that over the course of a day, one is exposed to multiple sources of
excitotoxin food additives and that these are fully toxic to the nervous
system, especially in the fetus and newborn.
As far as who is behind these practices - The food processors ( Campbell's,
Libby, Oscar Mayer, etc) and the company who sells these additives, the
Ajinomoto company. We are talking about billions of dollars. Campbell's
Soup Company adds multiple forms of excitotoxin additives to each can of
their soup. Check the label.
I get the impression that several of you are skeptic to the point of anger.
That is unfortunate, since you are denying reality. In my book, I list all
references documenting what I am saying. Since writing the book, mountains
of new evidence confirms what I, and neuroscientists, have been saying.
These referenced articles are all from peer reviewed articles.
For those of you who are still interested. It becomes obvious that the
Feingold diet has two properties that make it perfect for improving
children with ADD. First, it is a diet that would be used to correct
reactive hypoglycemia. Second, it removes "junk" food , which also happens
to be very high in excitotoxin food additives. There is no question that
several of the food dyes are also neurotoxic. But, I feel that the former
two reasons given are why the diet has such a high degree of success.
As for episodic violence and emotional dyscontrol, we know that first, it
is the limbic system that plays such a vital role in emotional elaboration.
Second, it has been demonstrated that excitatory amino acids are the major
neurotransmitters in this system and that microinjection of MSG into the
hypothalamus can result is explosive violence. Further, it is known that
excitotoxin excess can alter other neurotransmitters, as stated earlier,
and that one of these is serotonin, a neurotransmitter suspected to be
deficient in ADD cases exhibiting emotional dyscontrol.
Finally, as for the question- What should we use as a source of protein? I
suggest whole proteins- especially those low in fats. The advantage of
using whole proteins is that when the GI tract breaks them down, it does so
slowly, so that the glutamate and other excitatory amino acids are released
slowly, allowing them to be metabolized by the liver and muscles. Free
excitatory amino acids, on the other hand, flood the system, causing
drastic rises in blood glutamate levels. This is especially so with liquid
forms of amino acids, or when excitotoxins are added to liquid foods (e.g.
Gravies). Enzymes, or the hydrolyzation process, releases the free amino
acids- concentrating the taste enhancing excitotoxic amino acids. This is
the only reason they are added to foods. But, the same process occurs if
you consume free amino acids or hydrolyzed vegetable protein, or enzyme
treated protein.
NutraSweet contains two amino acids and a neurotoxin- methanol. One of the
amino acids is an excitotoxin- aspartate, and the other is a recognized
neurotoxin ( phenylalanine). With time, especially when exposed to heat,
aspartame breaks down into a substance called diketopiperzine. This class
of substances are known to be significantly carcinogenic. Experimental
studies have shown that aspartame feeding, at all dose levels, increased
tumor formation in multiple organs, including brain, ovaries, testies,
uterus, breast, and pancreas. Also, separate studies have shown that
aspartame is a moderately powerful genotoxin ( gene toxin).
Fat type is also vital for brain development. It has been shown that the
fatty acids DHA and arachidonic acid play a critical role in brain
development. Human breast milk is higher in DHA than is cow's milk, and
formula, until recently, contained no DHA. The mother's diet plays a
critical role in DHA levels in her breast milk. Dieting, poor nutrition or
poor selection of fats can lead to significant lowering of DHA and
arachidonic acid in breast milk, as well as in the placental fat transfer.
Formula is also deficient in taurine, which is necessary to reduce the
toxicity of the excitotoxin- cysteine.
Most have now heard that prenatal vitamins containing vitamins B6, folate
and B12 can reduce neural defects in newborns drastically. It is now known
that it is homocysteine that is the culprit, the same chemical connected to
heart attacks and strokes. Interestingly, homocysteine is an excitotoxin.
This group of vitamins lower homocysteine levels.
Exposure to caffeine during pregnancy, even in relatively small doses, can
have a significant deleterious effects on brain development. Certain metals
can also affect brain function and development, such as mercury, lead, and
manganese. Much research is being done in this area.
For a more complete discussion of all of these areas I suggest you read my
book, Excitotoxins: The Taste That Kills. And finally, what would I
suggest for a 7 month old who cannot get mother's milk? I would suggest
either commercial human breast milk or goats milk. Human milk has
significantly lower glutamic acid levels than cow's milk.
From: FJBCIII@aol.com
Date: Sat, 5 Sep 1998 20:05:27 EDT
To: add-holistic@mLists.net
Subject: Re: ADD excitotoxins and proteins
In a message dated 98-09-05 18:40:03 EDT, you write:
<< I get the impression that several of you are skeptic to the point of anger.
That is unfortunate, since you are denying reality. In my book, I list all
references documenting what I am saying. Since writing the book, mountains
of new evidence confirms what I, and neuroscientist, have been saying.
These referenced articles are all from peer reviewed articles. >>
I have no anger in my post , just curiousity to learning more about
Excitotoxins and what they are in my diet ..and others (Who dont participate
on this list yet ) who are curious to know more about it ...Please continue on
, dont take an offensive position we are here to share ..... Excitotoxins is
information that is new to most of us here and we are very curious about
analysing what we now eat to see how to eliminate and maximise our health
optimaly ...
aloha from Hawaii
Frank
From: FJBCIII@aol.com
Date: Sat, 5 Sep 1998 20:08:56 EDT
To: add-holistic@mLists.net
Subject: Re: ADD excitotoxins and proteins
In a message dated 98-09-05 18:40:03 EDT, you write:
<< commercial human breast milk >>
anyone know where to get a commercial human breast milk ?, they havent heard
of it out here in Hawaii ( kind of behind the times in isolation )
Date: Sat, 5 Sep 1998 20:20:52 -0400 (EDT)
From: Mark Gold
To: add-holistic@mLists.net
Subject: Re ADD excitotoxins
Dr. Blaylock,
Thank you very much for your detailed and comprehensive answers. I'm
learning alot. I have a couple of short questions about one of your
posts:
> Here is a short list of supplements shown to protect against
> excitotoxicity:
> 1. acetyl- L- carnitine
> 2. Phosphotidylserine
> 3. Vitamin C, E, and the carotonoids ( beta carotene, lycopene, alpha
> carotene, etc)
> 4. Coenzyme Q10
> 5. N-acetyl-l-cysteine ( NAC)
> 6. magnesium
> 7. methylcobalamin ( Vitamin B12)
> 8. pyridoxine, thiamine, riboflavin, niacinamide
> 9. grape seed extract ( and other flavonoids)
> 10. Zinc
> 11. Juice plus+ is a well compounded formula with high concentrations of
> flavonoids, vitamins and minerals.
> The dose depends on size and weight of the child or age of adult.
- Are you saying that Juice plus+ provides most (or all?) of the
nutrients mentioned in 1-10 above? Where is Juice plus+ sold, at
health food stores or through mail order?
- For persons with ADD, do you usually recommend all of the supplements
mentioned above? Or are there one or two of them that you feel are
particularly important and recommend starting with them?
Thanks again!
Best Wishes,
- Mark
mgold@holisticmed.com
Holistic Healing Web Page
http://www.HolisticMed.com/
From: randy1@ibm.net
Date: Sat, 05 Sep 1998 20:23:21 -0500
To: add-holistic@mLists.net
Subject: Re: ADD excitotoxins and proteins
Dr. Blaylock, isn't phenylalanine one of the precursors of dopamine (via
hydroxylation to tyrosine) and norepinephrine (via dopamine and DOPA -
"dihydroxyphenylalanine"), which are also neurotransmitters thought to be
deficient (by some including Hallowell and Ratey) in ADD?
I understand that phenylalanine is certainly toxic in some cases, such as
phenylketonuria, but is it truly toxic to all people?
Russell Blaylock, M.D. wrote:
> Several questions addressed the topic of processed proteins. It appears
> that many do not quite understand the process. First, it is well known that
> certain amino acids ( the building blocks of proteins) act by stimulating
> certain neurons to the point that they will die ( excitotoxicity)...
> ...Further, it is known that excitotoxin excess can alter other
> neurotransmitters, as stated earlier, and that one of these is serotonin, a
> neurotransmitter suspected to be
> deficient in ADD cases exhibiting emotional dyscontrol.
> ...
> ...NutraSweet contains two amino acids and a neurotoxin- methanol. One of the
>
> amino acids is an excitotoxin- aspartate, and the other is a recognized
> neurotoxin ( phenylalanine).
Date: Sun, 06 Sep 1998 10:29:00 -0600
From: John Dommisse
To: add-holistic@mLists.net
Subject: Re: ADD excitotoxins and proteins
Dear Dr Blaylock,
I thank you for
participating in this mailing-list: I believe you have made a very valuable
contribution to world awareness of excitotoxins, and I think this knowledge is
especially applicable to ADHD. However, I think you go a bit overboard on
occasion. 'Randy' has already asked you about your statements on
phenylalanine, an important amino-acid precursor of dopamine and noradrenaline
in the brain. I have founf the combination of DL-PA and 5H-Tryptophan, both in
high doses, to be as effective as any antidepressant medication and usually w/o
any side-effects. Except for mild over-stimulation in a small minority of
patients who were anxious to begin with, i have not seen any negative effects
of phenylalanine.
The other element you mentioned in a negative context that I would
take issue with is 'manganese' in fetal brain development. Everyone knows that
anything in excess, especially minerals, is harmful but what evidence do you
have that manganese, in which far more patients are deficient than toxic - I do
blood-levels of all these substances on every patient - has ever caused a
problem in fetal development, and how would anyone know if it did, in the
absence of accurate measuremnt of this mineral in any fluid or tissue in the
pregnant woman or developing fetus?
I look forward to your response, and I hope you are having a
pleasant long weekend.
John
Date: Sun, 6 Sep 1998 13:55:37 -0500
To: add-holistic@mlists.net
From: "Russell Blaylock, M.D."
Subject: ADD answers to questions
Thanks for the interesting questions:
To Randy, concerning his questions about phenylalanine as a precursor of
the catecholamines- dopamine, epinephrine and nor-epinephrine. It is true
that dopamine( an integral neurotransmitter of the mesocortical
dopaminergic system) and norepinephrine ( vital to the locus
ceruleus-cortical system) are reduced in ADD. But, the danger of aspartame
goes beyond this. Remember, its two other constituents, methanol and
aspartate. Aspartate and the other exicitotoxins may be the cause of the
decreased norepinephrine and dopamine in the first place. The real danger
is the consumption of these products before the baby is born - while in
utero. This is a very vulnerable period because of the rapid growth and
internal development of the baby's brain.
I have known numerous mothers and fathers, who have noticed consistently
that their children, especially with ADHD, are considerably worse when they
are exposed to NutraSweet or MSG products. Conversely, they get much better
when they avoid them. It is also known that phenylanine can not only
precipitate seizures, but also that it can produce long-lasting behavioral
abnormalities in experimental animals
( Schlock RL and Kloper FD. 168: 147-151, 1967) It has also been shown that
high concentrations of aspartame can cause delay in developmental
milestones and decreased brain weights.( Brunner RL, et al. Neurobehavioral
Toxicology 1: 79-86, 1979)
Interestingly, phenylalanine has been shown to be a unique amino acid in
that it is actually concentrated by the placenta on the fetal side. This
means that when the mother consumes phenylalanine ( as in NutraSweet) the
phenylalanine levels are significantly higher in the fetus than in the
mother. This can have toxic effects on neurodevelopment. You must remember,
just because the brain utilizes a particular substance as a
neurotransmitter, it is not safe in all concentrations. Dopamine, for
example, is carefully regulated by the striatal brain system. When levels
are too high, it is degraded into 6-hydroxydopamine, an excitotoxin that is
6X more potent than glutamate. In this state it undergoes autoxidation,
producing H202, which then, in the presence of free iron, generates the
very powerful hydroxyl free radical.
One of the ways stress damages the nervous system is via this system. (
Stress can dramatically increase free radical production within the brain.)
It plays a vital role in neurodegeneration and subsequent development of
Parkinson's disease. Many of these neurodegenerative diseases appear to
begin their development long before their clinical presentation, perhaps
even childhood or young adulthood.
As for the question about manganese, yes it has been shown to effect
neurodevelopment. Manganese toxicity ( very high levels) in adults are
known to produce a disorder very similar to Parkinson's disease. There is
some evidence that in some cases of ADD there is an excess of tissue
manganese. Studies are very early, but I would avoid over- supplementing
with manganese. As for the other neurotransmitters, as you will remember
from my original post, I mentioned serotonin as one of the deficient
transmitters in ADD associated with violent outburst. And, there is some
indication that supplementation with its precursor, 5-HTP can ameliorate
some of this violent dyscontrol. The same is true of adults as well. But,
you should be aware that one of the metabolic breakdown products of
serotonin is quinolinic acid, a powerful excitotoxin. In fact, accumulation
of this excitotoxin is associated with AIDS dementia as well as other
serious neurological disorders. Also, as I stated, excitotoxins can also
trigger intense violent outburst. With low serotonin levels, one would
expect an exaggerated violent outburst effect. Can, phenylalamine
supplementation improve the symptoms of ADD? It's possible, but the dosage
should be carefully titrated.
As to FJBCIII's question on tuna fish and tofu, Tuna has two drawbacks.
Most canned tuna has HVP
( hydrolyzed vegetable protein) added, and tuna is notorious for its high
mercury levels. Tofu has elevated glutamate levels, so I wouldn't get in
the habit of eating it regularly or in large quantities.
In closing, excitotoxins are occupying center stage in many neurological
disorders and I am convinced that the dramatic increases in many of these
neurological disorders, such as Alzheimer's dementia, Parkinson's, ALS and
neurodevelopmental disorders are related to the massive amounts of
excitotoxins being added to foods.
I thank you for your very interesting questions and for inviting me to
participate.
Russell L. Blaylock, M.D.
From: YCaryl@aol.com
Date: Sun, 6 Sep 1998 20:27:45 EDT
To: add-holistic@mLists.net
Subject: Re: Re: ADD excitotoxins and proteins
Dr. Blaylock, you have really stretched my understanding. I knew nothing
about excitotoxins. I am finding wonderful relief from depression with l-
tyrosene. The kind I bought (TwinLabs) has B6 and C in it. Does l-tyrosene
help reverse the effects of excitotoxins?
Caryl Wattman
From: MarkDGold@aol.com
Date: Sun, 6 Sep 1998 23:38:19 EDT
To: add-holistic@mLists.net
Subject: Re: ADD and Excitotoxins
Hi!
I'm at a different email address today. But I thought I would
provide add a little bit of information to Dr. Blaylock's comments
about the neurotoxicity of phenylalanine in pregnency. This is
from a draft review I wrote several years ago.
- Mark
mgold@holisticmed.com
Here are the thoughts of two experts who testified before
the U.S. Congress in 1987 (Elsas 1987; Pardridge 1987):
Louis J. Elsas, II, M.D., Director,
Division of Medical Genetics
----------------------------
"I have no previous contact with this type of
hearing. But that is probably appropriate because
I am a pediatrician, a Professor of Pediatrics at
Emory, and have spent 25 years in the biomedical
sciences, trying to prevent mental retardation and
birth defects caused by excess phenylalanine
.....
"First of all, in the developing fetus -- a
situation not considered previously -- the mother
is supplying that fetus with nutrients. And if she
were dieting, let's say, and increasing her blood
phenylalanine uniquely by taking Crystal Lite or
Kool Aid, or any of the various diet foods now, to
maintain her weight, and increased her blood
phenylalanine from its normal 50 to 150
umoles/liter by chronic ingestion at 35
milligrames of aspartame per kilo per day -- which
everyone agrees could be reached -- the placenta
will concentrate her blood phenylalanine two-fold.
So the fetal blood circulation to her baby in
utero, is now 300 umole per liter of
phenylalanine. The fetal brain then, as Dr.
Pardridge will tell you, will increase further
that concentration into the brain cells of that
baby two- to four-fold. Those are neurotoxic
levels in tissue culture and in many other
circumstances.
William M. Pardridge, M.D.
Professor of Medicine
---------------------
"I am a Professor of Medicine at the University of
California, a practicing endocrinologist, and I
have been doing neuroscience research on the blood-
brain barrier transport of phenylalanine and other
substances since 1970
.....
"...the third question that must now be addressed
is, are there any untoward effects on the human
brain that are associated with a four-fold
increase in phenylalanine, bearing in mind that
this molecule is a know neurotoxin? And three
studies come to mind. One study shows that when
blood phenylalanine in pregnant mothers is
increased five-fold [to ~250 umole/l], there is a
10-point drop inthe I.Q. of the baby born of that
mother.
"A second study shows that if you measure choice
reaction time, a test of higher cognitive function
in humans, that when their blood phenylalanine is
increased six-fold, there is a 10 percent shift in
your ability to make a key decision before a video
screen.
"And a more recent study by Dr. Elsas has shown
that there are quantitative changes in the human
electroencephalogram when the blood phenylalanine
is raised three-fold [to ~150-200 umole/l] --
something that clearly will happen in children who
consume near 5 servings per 50-pound body weight."
Levy (1994) found that plasma phenylalanine levels of around
400 umol/L in patients with mild hyperphenylalaninaemia were
associated with a slightly lower birth measurements and
offspring IQ than lower plasma phenylalanine measurements.
However, Levy (1994) did not found any additional fetal
loss, congenital heart disease or severe non-cardiac
anomalies when compared to the control group. Smith (1995)
pointed out that for every 100 umol/L
rise in plasma phenylalanine levels, there is a clinically
important change. Levy (1995) concurred that there is not a
threshold level at 400 umol/L plasma phenylalanine.
Date: Mon, 07 Sep 1998 11:06:11 -0600
From: John Dommisse
To: add-holistic@mLists.net
Subject: Re: ADD answers to Mn & PA questions
Dr Blaylock,
I agreed that any mineral in
excess can be toxic but I found it strange that you singled out manganese
together with mercury and lead as particularly prone to cause toxicity. I do
manganese - and other mineral, vitamin, amino-acid, multiple hormone, and other
levels - on virtually every patient I see, repeatedly, and have thus measured
manganese levels in the blood literally thousands of times. I am aware that
parkinsonism is supposed to be the effect of this toxicity. Yet, among all
these levels, I can count the high ones on one or two hands, while the
deficiencies - of which the effects are depression, anxity, fatigue,
memory-problems and glucose-intolerance - can be counted in the hundreds or
thousands. So just wanted to balance your statement with what I think is a
much-more-prevalent problem with manganese - its deficiency. Similarly, I
believe the talk of iron-overload is greatly overblown and there are still far
more people with iron deficiency than its excess. If one measures both the
serum iron and the ferritin level, and realises that a high ferritin level can
be caused by conditions other than excessive iron storage, one doesn't diagnose
too many cases of iron-overload and they are almost all in men, not women.
On phenylalanine: Could you clarify whether you are against the
use of aspartame (including its phenylalanine content) or are you against the
use of phenylalanine (on its own) as a prescription for depression, ADHD,
etc.? I prescribe 500-1500mg (depending on size of pt, and other factors) of
DL-PA after brkfst and lunch daily in these conditions - if their PA level is
low in a blood-test. I then re-test. The PA level has never gone above the
normal range in these patients, on these doses.
Thanks for your input.
John
Date: Mon, 7 Sep 1998 11:40:13 -0500
To: mgold@holisticmed.com
From: "Russell Blaylock, M.D."
Subject: answers
As far as the supplements found to be most useful:
in general, the most often used with success include:
- DMAE ( increases brain acetylcholine levels)
- phosphotidylserine ( a glutamate blocker)
- DHA ( Very critical role in brain development)
- zinc ( plays a critical role in brain development)
- magnesium ( Most important neuroprotectant known)
- multi-"B" vitamins
- methylcobalamin ( also glutamate blocker)
As for Juice plus+, it is a product developed by NSA and sold as a
multilevel marketing product, but it is one of the best compounded products
I have seen in along time. It consist of a concentrated form of 17 fruits
and vegetables, plus enzymes. The most important usefulness for this
product is the high concentration of flavonoids. It is suspected that one
of the problems in ADD is an excess of histamine in the brain. In the
brain, histamine acts as a neurotransmitter. Several of the flavonoids act
as antihistamines, but in a way different than drugs, since there is no
drowseness. I have spoken to several mothers who have had thier childen on
juice plus+ and have reported significant improvement.
To obtain the product you will have to contact a dealer. I do handle the
product and my whole family takes it because of its powerful effect in
reducing cancer and preventing neurodegeneration. If you have someone who
is interested let me know and I can have the company either find them
someone close or I will be glad to do it for them.
Date: Sun, 13 Sep 1998 12:54:52 -0400 (EDT)
From: Mark Gold
To: add-holistic@mLists.net
Subject: ADD Excitotoxins (Alternatives)
Hi!
I will have a few short posts before introducing the next honored Visiting
Expert later tonight. Here's the first one. :-)
Dr. Blaylock mentioned a number of excitotoxins found in foods. One which
he mentioned containing an excitotoxin was the artificial sweetener,
aspartame. I wanted to suggest to people who are looking to switch to a
healthier sweetener that they consider downloading the Healthier Sweetener
Resource List I put together a while ago. It lists sweeteners which are
generally safe and those to avoid because of toxicity/health concerns.
The web address is:
http://www.holisticmed.com/sweet/
Best Wishes,
- Mark
mgold@holisticmed.com
Holistic Healing Web Page
http://www.HolisticMed.com/
From: owner-add-holistic@mLists.net
Date: Wed, 6 Jan 1999 09:38:15 -0700 (MST)
To: add-holistic@mLists.net
Subject: Re: Magnesium and ADD/ADHD
I forwarded that abstract about magnesium deficiency in ADHD children
and significant improvement after supplementation to Dr. Russell
Blaylock. (I also forwarded to him another abstract that he refers
to.) I thought his comments would be of interest to the list:
Date: Wed, 30 Dec 1998 16:17:45 -0500
From: "Russell Blaylock, M.D."
Subject: Re: Magnesium and ADD/ADHD
>Ann Acad Med Stetin 1998;44:297-314
>The aim of my work was the answer to the following questions: how often does
>the deficiency of magnesium, copper, zinc, calcium, iron occur among
>hyperactive children in comparison with healthy children, deficiency of which
....
Thank you for passing the paper along.
It has been something that I suspected all along. A group working out of
Covington, La that I work with asked me about excitotoxins and ADD and I
suggested that they add magnesium supplimentation to their protecol. They
have found it to be very helpful. As you know, magnesium acts by blocking
the voltage gated NMDA receptor physiologically. Magnesium deficiency is
very common because of poor diets and use of carbonated soft drinks. I have
researched most of the papers concerned with magnesium and neurological
function and have found it to be one of the most remarkable
neuroprotectants. I use it on all of my surgical cases, especially with
brain trauma, subarachnoid hemorrhages and strokes with great success.
unfortunately, most neurosurgeons do not use it.
I also appreciate the abstract you sent me concerning formaldehyde
formation from NutraSweet esposure. It was a very interesting paper, that
demonstrates that formaldehyde formation from aspartame ingestion is very
common and does indeed accumulate within the cell, reacting with cellular
proteins ( mostly enzymes) and DNA ( both mitochondrial and nuclear). The
fact that it accumulates with each dose, indicates grave consequences among
those who consume diet drinks and foodstuffs on a daily basis.
I have also discovered that MSG excitotoxicity is greatly magnified in the
presence of lead. This would have importance in children with ADD having
elevated tissue lead levels. Likewise, recent studies have shown that MSG
dramatically elevates free radical generation within all tissues, not just
brain, and that it does so for a prolonged periods of time following even a
single dose. The importance of this observation is that this would also
raise the likelihood of cancer induction in several exposed tissues,
including brain, by oncogene activation by said free radicals.
It is unfortunate that so few in the field of ADDand ADHD care giving
understand the central importance of excitotoxins. Many of the treatment
that I have seen relate back to excitotoxicity, despite other explinations
being given. For example, the Feingold diet. Close adherence to the diet
eleminates many excitotoxins from the diet. I suspect this is why it works
so well. Remember, excitotoxins interplay with many neurotransmitters,
stimulate free radical production, damage brain lipids, interact with many
trace metals, and that elevated intake of excitotoxins is associated with
eicosanoid injury to neurons, which would explain thier relationship to
omega-3-fatty acids. These are very powerful substances and not only can
they kill neurons, but they affect their physiology and even brain
development itself.
[followup comments]
With the newer studies linking excitotoxicity with free radical
generation, I think it will be very difficult for those selling these toxin
to defend them as safe much longer. I am especially concerned because the
free radical generation caused by excitotoxins is so prolonged. It must be
related to all degenerative diseases, including cancer. In the case of
aspartame, the effects of formaldehyde on cellular proteins and DNA (
oncogene activation and p53 tumor suppressor gene alteration) in
conjunction with free radical generation would certainly lead to a high
incidence of neuronal dysfunction. I think this is why I receive so many
calls from young women who have developed brain tumors ( mostly
astrocytomas) following prolonged use of NutraSweet.
Russell