Showing posts with label autism. Show all posts
Showing posts with label autism. Show all posts

Monday, August 08, 2011

Digestion troubles often linked to autism

Digestion problems could play a role in a child's susceptibility to autism or the severity of the condition. A new experimental drug is being fast-tracked by the Food and Drug Administration and could prove helpful in the fight against autism.

Doctors and specialists have long suspected a link between a child's ability to digest certain foods and autism. A new drug trial is being conducted in 12 study sites across the U.S., including Mount Sinai Medical Center in New York and The University of Texas Health Science Center at Houston. The study involves a randomized double blind placebo controlled trial involving a drug that affects ancreatic enzymes.

Participants in the study will mix the drug, called Luminez-AT(TM), into their food. It purportedly helps the body digest protein. It is believed that many children with autism cannot digest protein from foods. This would cause them to lack the necessary amino acids that are critical in producing neurotransmitters in the brain. Various symptoms of autism and behavioral issues may result.

The new phase of the study will look at children with autism between the ages of 3 to 8. The participant will take the actual medication or a placebo for 12 weeks. The medication is a tasteless drug sprinkled on food. The participants are required to come in for six clinical visits during the 12-week period.

In earlier studies of the drug that involved almost 500 children, few had side effects. Results of the new study will take about a year, but many people involved in the study already feel hopeful about the results for autism spectrum disorders (ASD).

According to Curemark, an organization spearheading the research, "A variant of the MET gene involved in brain development and gut repair has been implicated in autism." This could be the reason behind the low level of the pancreatic enzyme to digest protein in those with ASD.

Penn State University Hershey Children's Hospital, one of the sites where the phase III study is being conducted, offers this summary of the drug Luminez-AT:

LUMINEZ-AT(TM) is a lipid-encapsulated pancreatic enzyme concentrate (PEC) designed to release chymotrypsin and other proteases in the small intestine without extreme degradation. Research conducted by Curemark has indicated that digestive enzyme therapy with LUMINENZ-AT(TM) may lead to increased neurological function and a concomitant reduction in autistic and gastrointestinal symptoms. This study will further quantify the changes in the target population as measured by standardized behavioral and quality of life tests, physiological measures, as well as characterize the efficacy and safety of the product. The data from this study will help determine safety and efficacy of LUMINENZ-AT(TM) in pediatric patients with autism.

The digestion connection with autism could help the thousands of children who have ASD. The Centers for Disease Control and Prevention says that currently one in 110 children in the U.S. are diagnosed with autism spectrum disorders. Many children are not diagnosed with autism until they reach school age, and because autism diagnosis is largely based on a child's behavior, diagnosis is not an exact science.

Children with ASD have some similar symptoms:

* Problems developing nonverbal communication skills, such as eye-to-eye gazing, facial expressions, and body posture.

* Failure to establish friendships with children of the same age.

* Lack of interest sharing enjoyment.

* Lack of empathy.

* Delay or inability to learn to talk.

* A need for sameness or routine.

* Repetitive use of language.

If diagnosed early, symptoms of ASDmay be lessened through therapy. Others are hopeful that the new drug trial will provide another avenue for alleviating symptoms.



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Friday, June 25, 2010

MMR Link to Autism Debunked

MMR Link to Autism DebunkedThe debate continues regarding routine childhood vaccines and their possible link to autism. Many parents are concerned about having their infants and toddlers receive the recommended inoculations. However, a recent study retraction by the medical publication The Lancet may help individuals make more informed decisions regarding their children's health, especially about the MMR shot.

In February 2010, The Lancet retracted a controversial 1998 paper that linked the measles, mumps and rubella (MMR) vaccine to autism. The study was discredited by further research, and it was determined that the lead doctor on the study, Dr. Andrew Wakefield, had acted unethically. Investigations revealed that Dr. Wakefield had chosen a biased selection of patients.

Dr. Wakefield has denied any wrongdoing in a written statement and claims his Lancet paper never definitively said that MMR vaccines cause autism. He is quoted as saying, "The Lancet paper does not claim to confirm a link between the MMR vaccine and autism. Research into that possible connection is still going on."

Many parents who have held off on the MMR vaccine for their children or denied it entirely have quoted the 1998 paper as part of their reasoning. Dr. Wakefield surmised that it wasn't exactly the MMR vaccine that caused the autism in his studies, but a gastrointestinal reaction to the shot that led to autism. According to Wakefield, "the virus used in the vaccine grew in the intestinal tract, leading the bowel to become porous because of inflammation. Then material seeped from the bowel into the blood affecting the nervous system and causing autism." This theory has been since discredited.

Columbia University, Massachusetts General Hospital and the Centers for Disease Control and Prevention have since replicated parts of Dr. Wakefield's paper and found no correlation to GI problems or subsequent autism. Since Wakefield's study in 1998, more than 20 other studies have been conducted around the world finding no correlation between MMR vaccines and autism.

Parents who are still concerned about vaccines should always discuss their anxiety with their children's pediatrician. He or she can offer the most up-to-date information about childhood vaccines and potential side effects.

The CDC urges parents to remember that vaccines are generally safe and should be an important part of children's well visits.

CAPTION: The retraction of an important autism study sheds new light on the link between autism and MMR.



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