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HEALTH EFFECTS: Fluoride & the Brain
http://www.fluoridealert.org/health/brain/
Fluoride Linked to Low IQ, Studies Show
http://fluoridealert.org/news/1655.html
Top 10 Fluoride Toxicity Papers of 2006
FAN Science Watch, January 22, 2007
http://www.manataka.org/page228.html
From: Paul Connett <paul@fluoridealert.org>
To: "fan_bulletins@lists.eggplantmedia.com" <fan_bulletins@mailman.eggplantmedia.com>
Subject: [FAN Bulletins] 787: Two more hammer blows against fluoridation
Date: Fri, 06 Apr 2007 17:34:06 -0400
FLUORIDE ACTION NETWORK
http://www.FluorideAction.net
FAN Bulletin 787: Two more hammer blows against fluoridation
April 6, 2007
Two more hammer blows
Today, I received one abstract and one full paper which between them deliver
two more huge hammer blows to the ³official² mantra that fluoridation is
³safe and effective.²
The abstract (see below), is from yet another paper which shows that
fluoride can lower the IQ of children. This joins 18 studies from China
(some of which are now being translated from the original Chinese) which
show the same thing. However, this is the first time that such an article
has appeared in a dental journal (I am trying to get the name)!
The study found an average difference of 11 IQ points in children between
two villages, one with a fluoride concentration of 2.5 ppm and the other 0.4
ppm. We are most anxious to read the whole paper and would be grateful if
there is someone out there who can translate Persian (Iranian). We have the
whole paper as a pdf file. The findings are remarkably similar to those of
Xiang et al. (2003 a) and b)).
While we have to hold out the possibility that all 19 of these studies have
not taken into account some unidentified confounding factor, the pattern
being seen is remarkably consistent. If this was not a ³real² finding, by
now one would have expected to see other studies, which did not find a
lowering of IQ associated with ³high² fluoride exposure. 19 to 0 does not
look good for those who want to believe that these results are merely a
coincidence and not related to fluoride.
I would remind our readers that the average level of fluoride in mothers
milk in unfluoridated areas is 0.004 ppm and that at birth the baby¹s blood
brain barrier is not fully developed. This is not the time to expose the
baby¹s developing brain to 250 times the level of fluoride that nature
intended.
A second paper was published in the latest issue of Annals of Anatomy (Ann
Anat, 189 (2007) 175-181) and was sent to me by the author (at the
suggestion of Japanese FAN representative Dr. Tohru Murukami). This paper
strikes another blow against the notion that ingesting fluoride is
beneficial to the growing tooth enamel and the growing bone. In an elegant
study, combining electron microscopy and biochemical analyses, Japanese
researchers M. Kakei et al. (m-kakei@dent.meikai.ac.jp ) have shown in a rat
study that ³regardless of its amount, fluoride intake has harmful effects on
both tooth and bone formation.² Electron microscopy ³revealed that fluoride
ions could interrupt the crystal nucleation process, resulting in crystal
perforation in the developing tooth enamel and the presence of amorphous
minerals in bone crystals² and their biochemical analyses ³indicated that
fluoride directly interfered with the synthesis of (the enzyme) carbonic
anhydrase by the enamel forming cells.² These biochemical effects, which the
authors relate to the crystal perforations observed with the electron
microscope, were observed at the lowest doses to which the animals were
exposed: 0.1 ppm in their drinking water!
Remembering that you need approximately 5 times as much fluoride in the
drinking water of a rat to reach the same plasma concentration in a human,
this low dose is equivalent to 0.02 ppm fluoride in human drinking water.
That¹s 50 times lower than we fluoridate water! Again we might be seeing
another reason why nature kept fluoride away from a new born baby and our
foolishness in gambling with higher levels.
Paul Connett
--------------------------------------------------------
Effect of high fluoride concentration in drinking water on children¹s
intelligence.
Seraj B., Shahrabi, M., Falahzade, M., Falahzade, F. and Akhondi, N.
In their abstract, the authors write:
Materials and Methods: ³In this cross sectional study, 41 children were
selected from the high fluoride area with 2.5 mg/L (ppm) fluoride in the
drinking water and 85 children were selected from low fluoride area with
0.4 mg/L (ppm) fluoride in the drinking water. The intelligence quotient
(IQ) of each child was measured by the Raven¹s test. The history of illness
affecting the nervous system, head trauma, birth weight (>2.5 kg or < 2.5
kg), residential history, age and sex of children were investigated by
questionnaires completed by the children¹s parents. Data were analyzed by
the Chi-Square test with p < 0.05 as the limit of significance.
Results: I the high fluoride area the mean IQ of children (87.9 +/- 11) was
significantly lower than in the low fluoride area (98.9 +/- 12.9) (p=
0.025).
Conclusion: Based on the findings of this study, exposure of children to
high levels of fluoride may carry the risk of impaired development of
intelligence.
http://www.fluoridealert.org/health/brain/
Fluoride Linked to Low IQ, Studies Show
http://fluoridealert.org/news/1655.html
Top 10 Fluoride Toxicity Papers of 2006
FAN Science Watch, January 22, 2007
http://www.manataka.org/page228.html
From: Paul Connett <paul@fluoridealert.org>
To: "fan_bulletins@lists.eggplantmedia.com" <fan_bulletins@mailman.eggplantmedia.com>
Subject: [FAN Bulletins] 787: Two more hammer blows against fluoridation
Date: Fri, 06 Apr 2007 17:34:06 -0400
FLUORIDE ACTION NETWORK
http://www.FluorideAction.net
FAN Bulletin 787: Two more hammer blows against fluoridation
April 6, 2007
Two more hammer blows
Today, I received one abstract and one full paper which between them deliver
two more huge hammer blows to the ³official² mantra that fluoridation is
³safe and effective.²
The abstract (see below), is from yet another paper which shows that
fluoride can lower the IQ of children. This joins 18 studies from China
(some of which are now being translated from the original Chinese) which
show the same thing. However, this is the first time that such an article
has appeared in a dental journal (I am trying to get the name)!
The study found an average difference of 11 IQ points in children between
two villages, one with a fluoride concentration of 2.5 ppm and the other 0.4
ppm. We are most anxious to read the whole paper and would be grateful if
there is someone out there who can translate Persian (Iranian). We have the
whole paper as a pdf file. The findings are remarkably similar to those of
Xiang et al. (2003 a) and b)).
While we have to hold out the possibility that all 19 of these studies have
not taken into account some unidentified confounding factor, the pattern
being seen is remarkably consistent. If this was not a ³real² finding, by
now one would have expected to see other studies, which did not find a
lowering of IQ associated with ³high² fluoride exposure. 19 to 0 does not
look good for those who want to believe that these results are merely a
coincidence and not related to fluoride.
I would remind our readers that the average level of fluoride in mothers
milk in unfluoridated areas is 0.004 ppm and that at birth the baby¹s blood
brain barrier is not fully developed. This is not the time to expose the
baby¹s developing brain to 250 times the level of fluoride that nature
intended.
A second paper was published in the latest issue of Annals of Anatomy (Ann
Anat, 189 (2007) 175-181) and was sent to me by the author (at the
suggestion of Japanese FAN representative Dr. Tohru Murukami). This paper
strikes another blow against the notion that ingesting fluoride is
beneficial to the growing tooth enamel and the growing bone. In an elegant
study, combining electron microscopy and biochemical analyses, Japanese
researchers M. Kakei et al. (m-kakei@dent.meikai.ac.jp ) have shown in a rat
study that ³regardless of its amount, fluoride intake has harmful effects on
both tooth and bone formation.² Electron microscopy ³revealed that fluoride
ions could interrupt the crystal nucleation process, resulting in crystal
perforation in the developing tooth enamel and the presence of amorphous
minerals in bone crystals² and their biochemical analyses ³indicated that
fluoride directly interfered with the synthesis of (the enzyme) carbonic
anhydrase by the enamel forming cells.² These biochemical effects, which the
authors relate to the crystal perforations observed with the electron
microscope, were observed at the lowest doses to which the animals were
exposed: 0.1 ppm in their drinking water!
Remembering that you need approximately 5 times as much fluoride in the
drinking water of a rat to reach the same plasma concentration in a human,
this low dose is equivalent to 0.02 ppm fluoride in human drinking water.
That¹s 50 times lower than we fluoridate water! Again we might be seeing
another reason why nature kept fluoride away from a new born baby and our
foolishness in gambling with higher levels.
Paul Connett
--------------------------------------------------------
Effect of high fluoride concentration in drinking water on children¹s
intelligence.
Seraj B., Shahrabi, M., Falahzade, M., Falahzade, F. and Akhondi, N.
In their abstract, the authors write:
Materials and Methods: ³In this cross sectional study, 41 children were
selected from the high fluoride area with 2.5 mg/L (ppm) fluoride in the
drinking water and 85 children were selected from low fluoride area with
0.4 mg/L (ppm) fluoride in the drinking water. The intelligence quotient
(IQ) of each child was measured by the Raven¹s test. The history of illness
affecting the nervous system, head trauma, birth weight (>2.5 kg or < 2.5
kg), residential history, age and sex of children were investigated by
questionnaires completed by the children¹s parents. Data were analyzed by
the Chi-Square test with p < 0.05 as the limit of significance.
Results: I the high fluoride area the mean IQ of children (87.9 +/- 11) was
significantly lower than in the low fluoride area (98.9 +/- 12.9) (p=
0.025).
Conclusion: Based on the findings of this study, exposure of children to
high levels of fluoride may carry the risk of impaired development of
intelligence.