The Microchip and Cancer Link
I had considered getting one of these and was talked out of it by
my SATZ training group. I just read this and thought I would pass it along.
~~~~~
Itchmo Pet News Daily Digest
Microchip Implants Linked To Animal Tumors In Research Animals
Posted: 09 Sep 2007 08:51 AM CDT
Various veterinary and toxicology studies done since the mid-1990s found
that microchip implants were linked to malignant tumors in some lab
mice and
rats.
"The transponders were the cause of the tumors," said Keith Johnson, a
retired toxicologic pathologist, said in regards to a 1996 study he
led at Dow
Chemical.
The Associated Press is reporting the results of these studies were not
made public by microchip companies or federal regulatory agencies.
When the FDA
was asked which studies they were aware of, they declined to answer.
Microchip
companies and even the American Medical Association said they were
unaware of
these studies.
The studies found that lab mice and rats injected with microchips
sometimes developed subcutaneous "sarcomas" - malignant tumors, most
of them
encasing the implants.
In 1998, a Connecticut study including 177 mice reported cancer incidence
to be slightly higher than 10 percent of research animals implanted with
microchips.
A 2006 study done in France showed tumors in 4.1 percent of 1,260
microchipped mice.
In 1997, a study in Germany reported cancers in 1 percent of 4,279 mice.
The researchers wrote that the tumors "are clearly due to the implanted
microchips."
For some cancer specialists, seeing these results from lab studies is
alarming.
"There's no way in the world, having read this information, that I would
have one of those chips implanted in my skin, or in one of my family
members,"
said Dr. Robert Benezra, head of the Cancer Biology Genetics Program
at the
Memorial Sloan-Kettering Cancer Center in New York.
Dr. Cheryl London, a veterinarian oncologist at Ohio State University said
tens of thousands of dogs have been chipped. So far, veterinary
pathologists
have not reported outbreaks of tumors in the area of the neck, where
canine
implants are mostly done.
The Associated Press reported that there were two published reports about
malignant tumors in two chipped dogs. In one incident, the researchers
said
cancer seemed to be linked to the implant of the microchip. In the
other case,
the cause of the cancer was uncertain.
She added that there is a need for a 20-year study of microchipped dogs to
see the biological effects. Another veterinary oncologist at the
National Cancer
Institute agreed and said this evidence "does suggest some reason to be
concerned about tumor formations."
Source: The Associated Press
my SATZ training group. I just read this and thought I would pass it along.
~~~~~
Itchmo Pet News Daily Digest
Microchip Implants Linked To Animal Tumors In Research Animals
Posted: 09 Sep 2007 08:51 AM CDT
Various veterinary and toxicology studies done since the mid-1990s found
that microchip implants were linked to malignant tumors in some lab
mice and
rats.
"The transponders were the cause of the tumors," said Keith Johnson, a
retired toxicologic pathologist, said in regards to a 1996 study he
led at Dow
Chemical.
The Associated Press is reporting the results of these studies were not
made public by microchip companies or federal regulatory agencies.
When the FDA
was asked which studies they were aware of, they declined to answer.
Microchip
companies and even the American Medical Association said they were
unaware of
these studies.
The studies found that lab mice and rats injected with microchips
sometimes developed subcutaneous "sarcomas" - malignant tumors, most
of them
encasing the implants.
In 1998, a Connecticut study including 177 mice reported cancer incidence
to be slightly higher than 10 percent of research animals implanted with
microchips.
A 2006 study done in France showed tumors in 4.1 percent of 1,260
microchipped mice.
In 1997, a study in Germany reported cancers in 1 percent of 4,279 mice.
The researchers wrote that the tumors "are clearly due to the implanted
microchips."
For some cancer specialists, seeing these results from lab studies is
alarming.
"There's no way in the world, having read this information, that I would
have one of those chips implanted in my skin, or in one of my family
members,"
said Dr. Robert Benezra, head of the Cancer Biology Genetics Program
at the
Memorial Sloan-Kettering Cancer Center in New York.
Dr. Cheryl London, a veterinarian oncologist at Ohio State University said
tens of thousands of dogs have been chipped. So far, veterinary
pathologists
have not reported outbreaks of tumors in the area of the neck, where
canine
implants are mostly done.
The Associated Press reported that there were two published reports about
malignant tumors in two chipped dogs. In one incident, the researchers
said
cancer seemed to be linked to the implant of the microchip. In the
other case,
the cause of the cancer was uncertain.
She added that there is a need for a 20-year study of microchipped dogs to
see the biological effects. Another veterinary oncologist at the
National Cancer
Institute agreed and said this evidence "does suggest some reason to be
concerned about tumor formations."
Source: The Associated Press
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