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Posts Tagged Autism

GAPS Diet

A correspondent asked me to look into the GAPS diet.  I did. I was sorry: it was a painful experience. What a mishmash of half-truths, pseudoscience, imagination, and untested claims!

GAPS stands for Gut and Psychology Syndrome. It is the invention of Dr. Natasha Campbell-McBride. According to her, a wide variety of health problems can be traced to a single cause: an imbalance of gut microbes.  She cites ancient wisdom: Hippocrates said all diseases begin in the gut. She says science confirmed that wisdom when it discovered that 90% of all cells and all genetic material in the human body belongs to the gut flora. She says the modern world poses many dangers for the gut flora, and once it is damaged, the health of the whole body enters a downward slide towards disease. She claims that autism and ADD, OCD, schizophrenia, epilepsy, depression, and numerous other ailments are all digestive disorders. (more…)

Posted in: Neuroscience/Mental Health, Nutrition, Vaccines

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The final nail in the coffin for the antivaccine rallying cry “Too many too soon”?

There are some weeks when I know what my topic will be—what it must be. These are weeks in which the universe gives the very appearance of handing to me my topic for the week on the proverbial silver platter with a giant hand descending from the clouds, pointing at it, and saying, “Blog about this, you idiot!” Usually, it’s because a study is released or something happens or a quack writes something that cries out for rebuttal. Whatever it is, it’s big and it’s unavoidable (for me, at least).

This is one of those weeks.

The reason it’s one of those weeks is because just last Friday, as I was driving to work, I heard a news story on NPR about a study that had just been released in the Journal of Pediatrics. The story, as it was reported, noted that the study being discussed looked specifically at a certain antivaccine trope and found for yet the umpteenth time that vaccines are not correlated with an increased risk of autism. Normally the news that a study had once again failed to find a link between vaccines and autism would be as surprising as a study finding that the sun rises in the east and sets in the west, or finding that water boils at 100° C at sea level. At this point, the evidence is so utterly overwhelming that there is not a whiff of a hint of a whisper of a correlation between vaccines and autism that it has become irritating that antivaccine activists keep pressuring scientists to do the same study over and over again, coming up with the same results over and over again, and then seeing antivaccinationists fail to believe those same results over and over again. Apparently, antivaccine activists think that if the same sorts of studies are done enough times, there will be a positive result implicating vaccines as a risk factor for or contributing cause to autism. By sheer random chance alone, this might happen someday, given the definition of statistical significance, but so far there has not been a single large, well-designed epidemiological study by reputable researchers that has found a link.
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Posted in: Epidemiology, Public Health, Vaccines

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Blame and magical thinking: The consequences of the autism “biomed” movement

That the myth that vaccines cause autism is indeed nothing more than a myth, a phantom, a delusion unsupported by science is no longer in doubt. In fact, it’s been many years now since it was last taken seriously by real scientists and physicians, as opposed to crank scientists and physicians, who are still selling the myth.  Thanks to them, and a dedicated cadre of antivaccine activists, the myth is like Jason Voorhees, Michael Myers, or Freddy Krueger at the end of one of their slasher flicks. The slasher or monster appears to be dead, but we know that he isn’t because we know that he’ll eventually return in another movie to kill and terrorize a new batch of unlucky and invariably not so bright teenagers. And he always does, eventually.

Unfortunately, the myth has a price, and autistic children pay it when they are unlucky enough to have parents who have latched on to this particular myth as an explanation for why their child is autistic. One price is blame. Parents who come to believe the myth that vaccines cause autism also express extreme guilt that they “did this” to their children, that it’s their fault that their children are autistic. At the same time, they have people and entities to blame: Paul Offit, big pharma, the FDA, the scientific community, pediatricians. As a result, the second price is paid: Their children are subjected to pure quackery, such as “stem cell” injections (which almost certainly aren’t actually stem cells, given the provenance of the clinics that offer such “therapies”) into their cerebrospinal fluid, and what in essence constitutes unethical human experimentation at the hands of “autism biomed” quacks. Meanwhile these same quacks reap the financial benefits of this belief by offering a cornucopia of treatments to “recover” autistic children that range from the ineffective and usually harmless (such as homeopathy) to the ineffective and downright dangerous (dubious “stem cell” injections by lumbar puncture into a child’s cerebrospinal fluid). These treatments drain the parents’ pocketbook and do nothing other than potential harm to the children. These prices are intertwined, and just last week I saw examples of both prices on full display at various antivaccine blogs. Worse, the concept appears to be metastasizing beyond vaccines. As more and more scientific evidence fails to find even a whiff of a hint of a correlation between vaccines and autism, the One True Cause of Autism, which was once vaccines or mercury in vaccines, has become the Many True Causes of Autism, in which vaccines (it’s always the vaccines) mix with pharmaceuticals, pollution, diet, and chemicals to produce autism in a manner that is a lot harder to falsify than the older, all too scientifically testable hypothesis that vaccines cause autism.
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Posted in: Health Fraud, Neuroscience/Mental Health, Science and the Media, Vaccines

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Bleaching away what ails you

I’ve been at this blogging thing for over seven years, over four of which I’ve been honored to be a part of this particular group blog dedicated to promoting science as a basis for rational medical therapies. For three or four years before that seven year period began, I had honed my chops on Usenet in a group known as misc.health.alternative (m.h.a.). So, although I haven’t been at this as long as Steve Novella, I’ve been at it plenty long, which led me to think I had seen just about everything when it comes to pseudoscience and quackery.

As usual whenever I think I’ve seen it all, I was wrong.

I’m referring to something that has been mentioned once before on this blog, namely something called “Miracle Mineral Solution” (MMS). I must admit that after a brief reaction of “WTF?” I basically forgot about it. I shouldn’t have; I should have looked into it in more detail at the time. Fortunately, being a blogger means never having to say you’re sorry (at least about not having caught a form of quackery the first time it made big news), and fortunately MMS was brought to my attention in the context of an area of quackery that I frequently blog about. You’ll see what I mean in a minute.

What happened is that MMS was brought to my attention again by a couple of readers and, not remembering it other than vaguely, I did what I always do when confronted with these situations. I Googled, and I found what I needed to know. Basically, MMS is 28% sodium chlorite in distilled water. In essence, MMS is equivalent to industrial strength bleach. Proponents recommend diluting MMS in either water or a food acid, such as lemon juice, which results in the formation of chlorine dioxide.
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Posted in: Health Fraud, Neuroscience/Mental Health, Vaccines

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Autism prevalence: Now estimated to be one in 88, and the antivaccine movement goes wild

Editor’s Note: Some of you might have seen this before, but it’s an important (and timely) enough topic that I figure it’s worth exposing to a different audience. It’s been updated and edited to style for SBM. Enjoy.

If there’s one thing that I’ve learned that I can always—and I do mean always—rely on from the antivaccine movement, it’s that its members will always be all over any new study regarding vaccines and/or autism in an effort to preemptively put their pseudoscientific spin on the results. It’s much the same way that they frequently storm into discussion threads after stories and posts about vaccines and autism like the proverbial flying monkeys, dropping their antivaccine poo hither and yon all over science-based discussions.

In any case, antivaxers are also known for not respecting embargoes. They infiltrate their way into mailing lists for journalists in which newsworthy new studies are released to the press before they actually see print and then flood their propaganda websites with their spin on the studies, either attacking the ones they don’t like or trying to imprint their interpretation on ones on which they can, all before the skeptical blogosophere—or even the mainstream press—has a chance to report. So it was late last week, when vaccine-autism cranks jumped the embargo on a CDC study that announced new autism prevalence numbers. This is nothing new; it’s the antivaccine movement’s modus operandi, which makes me wonder why the various journals don’t shut off the flow. The study, of course, was announced in press conferences and a number of news stories. No doubt by now many of you have seen them. The stories I’ve seen thus far have focused on the key finding of the CDC study, which is that the prevalence of autism in the U.S. has risen to approximately 1 in 88, a finding reported in the CDC’s Morbidity and Mortality Weekly Report.

This is how the CDC came up with the new prevalence:
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Posted in: Neuroscience/Mental Health, Public Health, Science and the Media, Vaccines

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Autism and Prenatal Vitamins

Science has found no evidence that vaccines cause autism; but the true cause(s) of autism have not yet been determined. So far the available evidence has pointed towards a largely genetic cause with possible interaction with environmental factors. A new study supports that interpretation. It also supports previous evidence that autism is triggered prior to birth, rather than at the time of vaccinations.

Schmidt et al. published a study in Epidemiology on May 23, 2011, entitled “Prenatal Vitamins, One-carbon Metabolism Gene Variants, and Risk for Autism.” It was a population-based case control study of 566 subjects comparing a group of autistic children to a matched control group of children with normal development. They looked at maternal intake of prenatal vitamins in the 3 months before conception and the first month of pregnancy, and they looked for genotypes associated with autism. They found that mothers who didn’t take prenatal vitamins were at greater risk of having an autistic child, and certain genetic markers markedly increased the risk. There was a dose/response relationship: the more prenatal vitamins a woman took, the less likely she would have an autistic child. There was no association with other types of multivitamins, and no association with prenatal vitamin intake during months 2-9 of pregnancy. (more…)

Posted in: Neuroscience/Mental Health, Nutrition

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Autism Prevalence Higher than Thought

Crossposted from NeuroLogica Blog

Over the last 20 years the prevalence of autism (now part of autism spectrum disorder, ASD) has been increasing. The medical community is largely agreed that this increase is mostly due to expanding the diagnostic category and greater efforts at surveillance. There remains some controversy over whether or not these factors explain all of the measured increase, or if there is a small real increase hidden in there as well. But largely – we are finding more children with ASD because we are casting a wider net with smaller holes.

If this is true, then we do not yet know what the true prevalence of ASD is. There must be a pool of undiagnosed children out there. Eventually the measured prevalence will hit the ceiling of the true prevalence (unless, of course, we expand the definition further) – but where is the ceiling?

That is the question researchers recently set out to answer, and they did so with a comprehensive 5 year study conducted in South Korea. The results surprised even them:
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Posted in: Neuroscience/Mental Health

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“Piltdown medicine” and Andrew Wakefield’s MMR vaccine fraud

Pity poor Andrew Wakefield. Well, not really. I tend to view what’s happening to him yet again as the chickens coming home to roost.

Let’s put it this way. 2010 was a terrible year for him, and 2011 is starting out almost as bad. In February 2010, the General Medical Council in the U.K. recommended that Wakefield be stripped of his license to practice medicine in the U.K. because of scientific misconduct related to his infamous 1998 case series published in The Lancet, even going so far as to refer to him as irresponsible and dishonest, and in May 2010 he was. This case series, thanks to Wakefield’s scientific incompetence and fraud, coupled with his flair for self-promotion and enabled by the sensationalistic credulity of the British press, ignited a scare about the measles-mumps-rubella (MMR) vaccine in which, afraid that the MMR vaccine causes autism, parents in the U.K. eschewed vaccinating their children in droves. As a result, vaccination rates plummeted far below the level necessary for herd immunity, with the entirely predictable result of massive measles outbreaks in the U.K. Measles, which as of the mid-1990s had been declared under control by British and European health authorities, came roaring back to the point where in 2008 it was declared once again endemic in the British Isles. In a mere decade and a half, several decades of progress in controlling this scourge had been unravelled like a thread hanging off a cheap dress, all thanks to Andrew Wakefield and scandal mongers in the British press.

True, Wakefield had long since moved to Texas, the better to be the founding “scientific director” of a house of autism woo known as Thoughtful House. Thus, the removal of his license to practice had little practical import (or effect on his ability to earn a living), or so it seemed at the time, given that Wakefield did not treat patients and hauled in quite the hefty salary for his promotion of anti-vaccine pseudoscience. Fortunately, karma’s a bitch, and, as a result of the GMC’s action, in short order The Lancet retracted Wakefield’s 1998 paper; Wakefield was pushed out of Thoughtful House; and his latest attempt to “prove” that vaccines cause autism in an animal study was also retracted. Investigative reporter Brian Deer’s investigation finding that Andrew Wakefield had committed scientific fraud in carrying out his Lancet study joined prior findings that Wakefield had been in the pocket of trial lawyers (to the tune of £435 643, plus expenses) seeking to sue the vaccine industry at the time he carried out his “research” and the allegations by renowned PCR expert Stephen Bustin during the Autism Omnibus as to how shoddily Wakefield’s other research was carried out. Finally, the mainstream media started to back away from its previous embrace of Wakefield and his claims. As a result, for a while at least, Wakefield was reduced to lame appearances at sparsely attended anti-vaccine rallies last spring.
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Posted in: Health Fraud, Neuroscience/Mental Health, Vaccines

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Vaccine Wars: the NCCAM Drops the Ball

If you go to the website of the National Center for Complementary and Alternative Medicine (NCCAM), you’ll find that one of its self-identified roles is to “provide information about CAM.” NCCAM Director Josephine Briggs is proud to assert that the website fulfills this expectation. As many readers will recall, three of your bloggers visited the NCCAM last April, after having received an invitation from Dr. Briggs. We differed from her in our opinion of the website: one of our suggestions was that the NCCAM could do a better job providing American citizens with useful and accurate information about “CAM.”

We cited, among several examples, the website offering little response to the dangerous problem of widespread misinformation about childhood immunizations. As Dr. Novella subsequently reported, it seemed that we’d scored a point on that one:

…Dr. Briggs did agree that anti-vaccine sentiments are common in the world of CAM and that the NCCAM can do more to combat this. Information countering anti-vaccine propaganda would be a welcome addition to the NCCAM site.

In anticipation of SBM’s Vaccine Awareness Week, I decided to find out whether such a welcome addition has come to fruition. The short answer: nope.

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Posted in: Chiropractic, Health Fraud, Homeopathy, Legal, Medical Ethics, Naturopathy, Politics and Regulation, Public Health, Science and the Media

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Journal Club Debunks Anti-Vaccine Myths

American Family Physician, the journal of the American Academy of Family Physicians, has a feature called AFP Journal Club, where physicians analyze a journal article that either involves a hot topic affecting family physicians or busts a commonly held medical myth. In the September 15, 2010 issue they discussed “Vaccines and autism: a tale of shifting hypotheses,” by Gerber and Offit, published in Clinical Infectious Diseases in 2009.  

The article presented convincing evidence to debunk 3 myths:

  1. MMR causes autism.
  2. Thimerosal (mercury) causes autism.
  3. Simultaneous administration of multiple vaccines overwhelms and weakens the immune system, triggering autism in a susceptible host.

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Posted in: Vaccines

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