Showing posts with label Dr. Philip Landrigan. Show all posts
Showing posts with label Dr. Philip Landrigan. Show all posts

Sunday, December 12, 2010

Autism Speaks Role in Exploring the Environmental Causes of Autism and Other Learning Disabilities


Autism Speaks has been open to legitimate criticism on several aspects of its autism advocacy of late including promoting the views of those who do not view autism disorders as medical disorders and do not think that autism disorders should be cured.  AS even promotes the views of Alex Plank, a very high functioning young man, with no obvious or apparent autism deficits, who runs a forum which, amongst other disreputable behavior, actually permitted posters to cheer the passing of Dr. Ivar Lovaas.  On its official blog site though Autism Speaks has just given notice  that it can still engage in some  genuine, and much needed, autism advocacy with its sponsorship of, and reporting on, the Mount Sinai Children's Environmental Health Center's workshop "Exploring the Environmental Causes of Autism and Other Learning Disabilities".     , 

In Feeling exposed? Insights from a new meeting on environmental impacts in autism Autism Speaks board member, and co-founder and Executive Director of Safe Minds, Sallie Bernard provides an overview of “Exploring the Environmental Causes of Autism and Learning Disabilities” a conference  organized  by the Children’s Center for Environmental Health at the Mount Sinai School of Medicine in New York City run by Dr. Phil Landrigan.

Dr. Landrigan is no vaccine patent holder or industrial  or  pharmaceutical company apologist. His credibility on children's health areas is well summarized on Wikipedia.

"Landrigan's reputation rests largely on his role as a highly credible evidence-based advocate for public health, specifically in his focus on reducing the level of children's exposure to lead and pesticides and for his participation in the World Health Organization's global campaign to eradicate smallpox. 


He was also a central figure in developing the National Children's Study[1][3] and in the medical and epidemiological studies that followed the destruction of the World Trade Center on September 11, 2001.[4] Additionally, from 1995 to 1997, Landrigan served on the Presidential Advisory Committee on Gulf War Veteran’s Illnesses,[5] and, in 1997 and 1998, served as Senior Advisor on Children's Health to the Administrator of the U.S. Environmental Protection Agency, where he helped establish the Office of Children's Health Protection.


He has been awarded the Meritorious Service Medal of the US Public Health Service[6] and is a frequent consultant to the World Health Organization, which called Landrigan's work "instrumental in passing the Food Quality Protection Act of 1996."


In 2005, Landrigan, along with Drs. Ramon Murphy and David Muller, founded the Global Health Center, a division of the Mount Sinai Medical Center dedicated to finding evidence-based solutions to global health problems.[7]"

The Autism Speaks summary of the conference points out that the primary purpose of the conference was to highlight the fact that environmental autism science should now be considered mainstream.  Hopefully if this message permeates the consciousness of mainstream media decision makers it will  lead to fewer personal attacks on those who advance environmental theories of autism causation and more serious investigation of all possible environmental causes of autism disorders.  Some of the key points as reported by Autism Speaks:

"A few interesting bits of information came out of the conference. One was the definition of “environment” that the insiders use. It covers synthetic chemicals like pesticides, flame retardants and plasticizers; heavy metals like arsenic, lead and mercury; combustion and industrial by-products; diet and nutrients; medications, medical interventions, and substance abuse; infections; the microbiome; heat and radiation; and lifestyle factors. Some may be harmful; others protective. They may operate before conception, during pregnancy or in early life, and some may alter gene expression through epigenetic modifications to chemicals surrounding our genes. Craig Newshaffer, who runs the EARLI study to look at environmental factors among younger autism siblings, referred to the concept of the “exposome”, that is, everything we are exposed to and its effects on health. Dr. Birnbaum’ made the point that health does not equal medicine, and prevention through reduction in chemical exposures is of equal importance to health. Colleen Boyle from the CDC stated that the next prevalence report will be issued in April 2011. We will see if the 1 in 110 number from last year’s report has changed. New research from Korea was unable to confirm increased risk of autism due to parental age or low birth weight, which have been identified as risk factors in Western studies.


The most informative talk was by Dr. Irva Hertz-Picciotto from UC-Davis. She explained how changes in diagnosis do not account for most of the increase in autism rates, and how recent research by their group on mercury and flame retardant blood levels do not address whether these substances are causative for autism because the blood samples were taken years after the autism diagnosis. A paper out this week from UC-Davis found that proximity to traffic air pollution during pregnancy almost doubles the risk of autism. Another paper just accepted by a journal has found higher antibodies to cerebellar tissue in children with autism relative to controls, highlighting the immune component in autism.

Other than these interesting items, the conference covered minimal new ground as far as the science goes. Rather, the points of the meeting seemed to be to make the case that environmental factors research in autism must now be considered mainstream science and to showcase the work being done or about to be done to investigate the issue. Dr. Landrigan made the case for an environmental role by noting that the rate of autism has increased too much to be solely genetic, and that at most, genetics alone will end up explaining 40% of autism cases with the likely percentage much lower."

I appreciate Autism Speaks and Sallie Bernard's  reporting on this conference. I depart from Ms Bernard's description slightly in referring to the information as being just "interesting" points.  In my view it is critically important that the mainstream media, dependent as it is on advertising dollars from business interests, to hear directly from such credible sources as Dr. Landrigan that genetics alone does not explain the incredible increases in autism diagnoses, that environmental factors play a role.  It is also very important for people to understand that the environment can impact child neurological development in many different ways at different developmental times.  The specific reports by Dr. Hertz-Piccotto, herself a leading figure in environmental autism research, are worthy of substantial mainstream media attention.

Autism Speaks has stepped up to the plate with its support for this important conference and by reporting it on their official blog site.  But Autism Speaks can, and should, do more. No one can question the demonstrated ability of Autism Speaks to raise media attention for autism disorders.  Autism Speaks should use its ability to  break through the fog of mainstream media understanding of autism disorders and convince institutions like CNN, CBC, NY Times, Newseek, and all the major television networks to start understanding the environmental component of autism.

The Offit Offensive, with its focus on personally discrediting anyone who questions possible vaccine autism connections,  has dominated mainstream media discussion of any environmental component of autism.  That offensive has not worked and may have been counter productive. Regardless, the vaccine issue is only one component of possible environmental contributors to autism disorder increases as the conference highlights.  It is time that mainstream media began to demonstrate awareness of this reality. No one is better able to help the mainstream media understand the full scope of environmental issues and autism disorders  than Autism Speaks.  I hope  Autism Speaks dedicates more of its impressive resources to doing exactly that. 

Wednesday, July 07, 2010

Dr. Philip J. Landrigan Calls for Expanded Research Into Environmental Causes of Autism

Dr. Philip J. Landrigan  has published, in the April 201 edition of Current Opinion in Pediatrics,   an article  titled  What causes autism? Exploring the environmental contribution in which the he calls for expanded research into environmental causes of autism.  As set out in the abstract summary:

"Expanded research is needed into environmental causation of autism. Children today are surrounded by thousands of synthetic chemicals. Two hundred of them are neurotoxic in adult humans, and 1000 more in laboratory models. Yet fewer than 20% of high-volume chemicals have been tested for neurodevelopmental toxicity. I propose a targeted discovery strategy focused on suspect chemicals, which combines expanded toxicological screening, neurobiological research and prospective epidemiological studies."

Dr. Landrigan notes that genetic factors are implicated in causing autism but only in a very small number of cases and they do not explain key clinical and epidemiological features. He suggests as a hypotheses that early environmental factors could contribute.  Dr. Landrigan notes two important indirect sources of support for the hypothesis: "studies demonstrating the sensitivity of the developing brain to external exposures such as lead, ethyl alcohol and methyl mercury" and, more importantly, "studies specifically linking autism to exposures in early pregnancy – thalidomide, misoprostol, and valproic acid; maternal rubella infection; and the organophosphate insecticide, chlorpyrifos."


"measured 212 chemicals in people's blood or urine—75 of which have never before been measured in the U.S. population. The new chemicals include acrylamide, arsenic, environmental phenols, including bisphenol A and triclosan, and perchlorate"

I noted that this alarming report had been released just days before Christmas when it would attract little public attention. But I am not a scientist and even worse, I am a parent of an autistic child, which means that my opinion about the realities of autism disorders,  is generally worth less than nothing in public health authority circles.  I am very pleased that someone as distinguished as Dr. Landrigan has in fact been paying attention to the possible role played by untested synthetic chemicals in causing autism in children. For those who do not know who Dr. Philp J. Landrigan is I am citing, in full his bio,  as listed on the Environmental Health Perspectives site:

"Philip J. Landrigan, MD
Center for Children's Health and the Environment
Department of Community &  Preventive Medicine
Mount Sinai School of Medicine

Philip J. Landrigan, a pediatrician, is the Ethel H. Wise Professor and chair of the Department of Community and Preventive Medicine at the Mount Sinai School of Medicine. He also holds a professorship in pediatrics at Mount Sinai. He directs the Mount Sinai Center for Children's Health and the Environment. Landrigan is a member of the Institute of Medicine of the National Academy of Sciences (NAS) and is currently editor-in-chief of the American Journal of Industrial Medicine. He has served in many other capacities, including editor of Environmental Research and committee chair at the NAS on Environmental Neurotoxicology (NAS 1992) and on Pesticides in the Diets of Infants and Children (NAS 1993).

The report of the NAS committee that Landrigan chaired on pesticides and children's health was instrumental in securing passage of the Food Quality Protection Act of 1996, the major federal pesticide law in the United States. In New York City, he served on the Mayor's Advisory Committee to Prevent Childhood Lead Paint Poisoning and on the Childhood Immunization Advisory Committee. He is chair of the New York State Advisory Council on Lead Poisoning Prevention. From 1995 to 1997, Landrigan served on the Presidential Advisory Committee on Gulf War Veteran's Illnesses. In 1997 and 1998, he served as senior advisor on children's health to the administrator of the U.S. Environmental Protection Agency (EPA). He was responsible at the U.S. EPA for helping to establish a new Office of Children's Health Protection."

Hopefully Dr. Insel and the IACC will take seriously the warning sounded by Dr. Landrigan. With his qualifications and experience his is a voice that should be heeded if we are to ever find out what is happening to our children, what is causing them to develop so many neurodevelomental disorders in such alarming numbers.  Rooting endlessly through the genetic family histories of autistic children has not  helped.  Fudging the facts, distorting the picture by periodic DSM changes will not help our children. It is time the IACC and other public health authorities joined respected voices like Dr. Landrigan, Dr. Irva Hertz-Picciotto, Dr. Jon Poling and others who have called for research into the environmental causes of autism disorders.  

Autism is rising. It is time to quit the genetic stalling game and find out why.