Treatments of Autism Justified in Scientific Publication


Treatment

This section does not include psychological, teaching, or social treatment but rather the techniques of modifying the chemistry of the body generally using pharmacological methods.

 

To a large degree the treatment of autism is organised in three therapeutic directions:

1.  Prevention of the disease (e.g. genetics, maternal exposure, vaccination problems), 2. Treatment of the progress of the disease i.e. as if damage to the brain may take place early but continues to take place unless action is taken (leaky gut syndrome, immunotherapy, diets, vitamins, heavy metals, hormones, pioglitazone, oxidative stress).  3.  Treatment of the symptoms of the condition (naltrexone, melatonin, risperidone etc).

 

Symptomatic autism represents a range of disease and parents want to see any improvement that they can and so their report may well not be adequate. As such cases may well not respond in the same way as each other, and many findings may be oddly optimistic. 

 

There have been some reviews (see Neurochemistry modifiers) but some wider ones: Theoharides TC, Doyle R, Francis K, Conti P, Kalogeromitros D. Novel therapeutic targets for autism. Trends Pharmacol Sci. 2008 Aug;29(8):375-382. Epub 2008 Jul 6.

 

 

 

 

Various attempts at treatment assessment are carried out by parents through international organisations.  This is a very important factor simply because of the difficulty of carrying these out by medical and psychological professions.

 

 


Reviews

You should always remember that some reviews are aimed mainly at the subject that the author is particularly knowledge about and tends to avoid other aspects.  Because of this I would recommend reading several reviews if possible.

 

Autism: an emerging 'neuroimmune disorder' in search of therapy.  Theoharides TC, Kempuraj D, Redwood L.  Expert Opin Pharmacother. 2009 Sep;10(13):2127-43  Increased oxidative stress and immune dysregulation are present in ASDs. Mast-cell activation may contribute to gut-blood-brain barrier disruption and brain inflammation. No effective treatments have emerged. Well-designed clinical trials with nonpsychotropic drugs were few and ASD characteristics varied considerably, making conclusions difficult. Psychotropic drugs are often used for stereotypic and aggressive behaviours. Unique combinations with antioxidant and anti-inflammatory flavonoids hold promise. 

 
 
 

Anti-oxidants

The aim is to avoid the damage that takes place to brain tissue as a result of the inadequacy of anti-oxidants that are present (either because they are used up or they are inadequately produced). 

 

 

Vitamin C

Dolske MC, Spollen J, McKay S, Lancashire E, Tolbert L. A preliminary trial of ascorbic acid as supplemental therapy for autism. Prog Neuropsychopharmacol Biol Psychiatry 1993 Sep;17(5):765-74. (placebo-controlled trial exploring the effectiveness of ascorbic acid (8g/70kg/day) as a supplemental pharmacological treatment for autistic children in residential treatment. 2. Residential school children (N = 18) were randomly assigned to either ascorbate-ascorbate-placebo treatment order group or ascorbate-placebo-ascorbate treatment order group. Each treatment phase lasted 10 weeks and behaviors were rated weekly using the Ritvo-Freeman scale. 3. Significant group by phase interactions were found for total scores and also sensory motor scores indicating a reduction in symptom severity associated with the ascorbic acid treatment. 4. These results were consistent with a hypothesized dopaminergic mechanism of action of ascorbic acid.)

 

Dolske MC, Spollen J, McKay S, Lancashire E, Tolbert L. A preliminary trial of ascorbic acid as supplemental therapy for autism. Prog Neuropsychopharmacol Biol Psychiatry. 1993 Sep;17(5):765-74. (they felt that they were going to be acting directly on the brain with a dopaminergic action).

 

Modifiers of glutathione production:  see below.   The factors that may be involved in maintaining glutathione are B12, and tetrahydrofolate see below.   To understand its method see the oxidative stress page of the web site.

 

Also anti-oxidants: carnosine,  polyunsaturated fatty acids,  hyperbaric oxygen (you must read the articles to understand the mechanism of this as it seem odd), 

 

Sulphate uptake:  see Feingold diet

 

Coenzyme Q (known as Q10, Ubiquinone).  No data is available in autistic patients but can be shown to have a major action in mitochondrial disease and presumably in mitochondrial dysfunction, which may be more common than is realised.  However, see Young AJ, Johnson S, Steffens DC, Doraiswamy PM. Coenzyme Q10: a review of its promise as a neuroprotectant. CNS Spectr. 2007 Jan;12(1):62-8. Review

 

 

 

Idebenone or Ginko Biloba.  Most of the data is from other conditions in which oxidative stress in known to have a major effect (Parkinsonism) and in animal models.   In those conditions there has been statistical advantage from both this and Vitamin E to some degree.

First preliminary results of an observation of Ginkgo Biloba treating patients with autistic disorder .Phytother Res. Niederhofer H.

2009 Mar 9.   They tried giving three patients received 2 x 100 mg Ginkgo Biloba EGb 761 for 4 weeks and claim an advantage.   Clearly there can be no statistics from this but it suggests that research should be carried out.

 

Vitamin E, selenium, co enzyme Q10, grape seed extract (pycnogynol).  No published clinical data for advantage.

 

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Carnosine supplementation

It is supposed to act as a neuroprotective compound that could be absorbed from the gut.  It has an anti-oxidant activity

 

L-Carnosine

 

 

Chez MG, Buchanan CP, Aimonovitch MC, Becker M, Schaefer K, Black C, Komen J. Double-blind, placebo-controlled study of L-carnosine supplementation in children with autistic spectrum disorders. J Child Neurol. 2002 Nov;17(11):833-7.  (L-Carnosine, a dipeptide, can enhance frontal lobe function or be neuroprotective. It can also correlate with gamma-aminobutyric acid (GABA)-homocarnosine interaction, with possible anticonvulsive effects.They decided that they found a statistically significant improvement in the children involved and that this was without problems.  The exact reason for the improvement was unclear but has been claimed to be associated with an anti-oxidant activity)

 

 

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Hyperbaric Oxygen

 

Hyperbaric oxygen therapy (HBOT).  The known data is that  autistic children appear to have a lower blood flow to the brain and presumably a lower supply of oxygen.  The idea is that hypoxia causes a decrease in mitochondrial activity unless a high level of oxygen is present in the blood and increase mitochondrial activity.  For a full explanation see: Rossignol DA, Bradstreet JJ.  Evidence of mitochondrial dysfunction in autism and implications for treatment.  Am J Biochem and Biotechnol 2008;4:208-17. 

 

 

Rossignol DA, Rossignol LW, James SJ, Melnyk S, Mumper E. The effects of hyperbaric oxygen therapy on oxidative stress, inflammation, and symptoms in children with autism: an open-label pilot study. BMC Pediatr. 2007 Nov 16;7  (all is shows is that there doesn’t appear to be a toxicity problem with starting the study).  Rossignol appears to be going to produce useful data in the future.

 

Weiss HR, Liu X, Zhang Q, Chi OZ. Increased cerebral oxygen consumption in Eker rats and effects of N-methyl-D-aspartate blockade: Implications for autism. J Neurosci Res. 2007 Aug 15;85(11):2512-7. (the Eker rat is the model for tuberous sclerosis and they did not find any useful advantage except in that the brain of the rat had a higher oxygen consumption)

 

Rossignol DA. Hyperbaric oxygen therapy might improve certain pathophysiological findings in autism.

Med Hypotheses. 2007;68(6):1208-27. Epub 2006 Dec 4.

Hyperbaric oxygen therapy in Thai autistic children.  Chungpaibulpatana J, Sumpatanarax T, Thadakul N, Chantharatreerat C, Konkaew M, Aroonlimsawas M. J Med Assoc Thai. 2008 Aug;91(8):1232-8  Improvement was shown in five domains with a significant level. Seventy-five percent of children shown improvement while 25% did not seem to respond to the treatment. 

Hyperbaric oxygen therapy in autism: is there evidence? Yildiz S, Aktas S, Uzun G.  Undersea Hyperb Med. 2008 Nov-Dec;35(6):453-5.

 

 

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Modifiers of neurochemistry: (Methyl phenidate, Memantine, Galantamine, Lamotragine, Risperidone, Atomexetine, Antipsychotics, SSRIs, Melatonin, Guanfacine, cycloserine, mirtizapine, naltrexone)

 

This involves the consideration that the damage in autism has already been done and that all we can now is to modify the symptoms that we see.  Attempts have been made with many chemical drugs, which are available and exceptionally active.  They have created as anti-psycholtics, anti-depressives, anti-anxiety drugs, etc.    Their main activities are through the modification of the activities of the neurones themselves  There are not enough controlled trials with specific drugs and some of them are difficult to compare with each other simply because they use assessments differently.  One good review: Hazell P. Drug therapy for attention-deficit/hyperactivity disorder-like symptoms in autistic disorder. J Paediatr Child Health. 2007 Jan-Feb;43(1-2):19-24. Review.  Also another review indicates that at this time we really should have enough data to have a good guess as to which direction to go in to look for neurochemical modifier drugs: Walker MA. Treatment of autism spectrum disorders: neurotransmitter signaling pathways involved in motivation and reward as therapeutic targets. Expert Opin Ther Targets. 2008 Aug;12(8):949-67. There are some reviews Pharmacologic treatment for the core deficits and associated symptoms of autism in children. West L, Waldrop J, Brunssen S. J Pediatr Health Care. 2009 Mar-Apr;23(2):75-89

 

 

 

Ritalin (methylphenidate)

Methylphenidate (MPH) is a prescription stimulant commonly used to treat Attention-deficit hyperactivity disorder, or ADHD.  A lot of parents claim that there is little advantage to the drug, but others disagree.  It is  not clear that it makes any long term advance but rather the attempt is to calm specific patients.

Coleman M, Steinberg G, Tippett J, Bhagavan HN, Coursin DB, Gross M, Lewis C, DeVeau L. A preliminary study of the effect of pyridoxine administration in a subgroup of hyperkinetic children: a double-blind crossover comparison with methylphenidate. Biol Psychiatry. 1979 Oct;14(5):741-51. (interesting in terms of the way in which they interpreted the response of the patient with serotonin chemistry)

 

Posey DJ, Aman MG, McCracken JT, Scahill L, Tierney E, Arnold LE, Vitiello B, Chuang SZ, Davies M, Ramadan Y, Witwer AN, Swiezy NB, Cronin P, Shah B, Carroll DH, Young C, Wheeler C, McDougle CJ. Positive effects of methylphenidate on inattention and hyperactivity in pervasive developmental disorders: an analysis of secondary measures. Biol Psychiatry. 2007 Feb 15;61(4):538-44.

 

Research Units on Pediatric Psychopharmacology Autism Network. Randomized, controlled, crossover trial of methylphenidate in pervasive developmental disorders with hyperactivity. Arch Gen Psychiatry. 2005 Nov;62(11):1266-74.  (Methylphenidate was superior to placebo on the primary outcome measure, with effect sizes ranging from 0.20 to 0.54 depending on dose and rater. Thirty-five (49%) of 72 enrolled subjects were classified as methylphenidate responders. However there were side effects, and the advantages were not only not present but also were often not great).  This article has a plenty of references to the drug as it has been used since the 1970s.

Positive effects of methylphenidate on social communication and self-regulation in children with pervasive developmental disorders and hyperactivity. Jahromi LB, Kasari CL, McCracken JT, Lee LS, Aman MG, McDougle CJ, Scahill L, Tierney E, Arnold LE, Vitiello B, Ritz L, Witwer A, Kustan E, Ghuman J, Posey DJ. J Autism Dev Disord. 2009 Mar;39(3):395-404.

 

 

 

Memantine: an NMDA inhibitor:

 

Chez MG, Burton Q, Dowling T, Chang M, Khanna P, Kramer C.Memantine as adjunctive therapy in children diagnosed with autistic spectrum disorders: an observation of initial clinical response and maintenance tolerability.J Child Neurol. 2007 May;22(5):574-9.  (They claim advances in speech, personality, and interaction..and few side effects: effectively acting as a glutamate inhibitor)

 

Niederhofer H. Glutamate antagonists seem to be slightly effective in psychopharmacologic treatment of autism. J Clin Psychopharmacol. 2007 Jun;27(3):317-8.

 

Erickson CA, Posey DJ, Stigler KA, Mullett J, Katschke AR, McDougle CJ.A retrospective study of memantine in children and adolescents with pervasive developmental disorders. Psychopharmacology (Berl). 2007 Mar;191(1):141-7. Epub 2006 Oct (Eighteen patients (15 male, 3 female; mean age=11.4 years, range 6-19 years) received memantine (mean dosage=10.1 mg/day, range 2.5-20 mg/day) over a mean duration of 19.3 weeks (range 1.5-56 weeks). Eleven of 18 (61%) patients were judged responders to memantine based on a rating of "much improved" or "very much improved" on the CGI-I. Significant improvement was also seen on the CGI-S. Improvement was primarily seen clinically in social withdrawal and inattention. Adverse effects occurred in 7 of 18 (39%) patients and led to drug discontinuation in 4 of 18 (22%) patients. This suggests a controlled trial would be a good idea)

Treating autism pharmacologically: also tacrine might improve symptomatology in some cases.Niederhofer H.  J Child Neurol. 2007 Aug;22(8):1054; author reply 1054-5.

 

 

 

Cycloserine (a partial antagonist of the NMDA glutamate receptor subtype)

 

Posey DJ, Kem DL, Swiezy NB, Sweeten TL, Wiegand RE, McDougle CJ.   A pilot study of D-cycloserine in subjects with autistic disorder.  Am J Psychiatry. 2004 Nov;161(11):2115-7  (cycloserine is an agonist for N-methyl-d-alanine and they claim that it caused a major improvement in the clinical condition of autistic children even when compared with controls.  This was single blind and so it may need to be done again but is an interesting finding).  

 

Galantamine.

 

Niederhofer H, Staffen W, Mair A. Galantamine may be effective in treating autistic disorder. BMJ. 2002 Dec 14;325(7377):1422. No specific drugs seem to improve autism significantly. Desipramine, dextroamphetamine, clonidine, neuroleptics, and methylphenidate are reported to be only slightly effective but also to have possible severe adverse effects.24 We conducted a placebo controlled, double blind crossover randomised controlled trial investigating the efficacy of galantamine in autistic disorders. They found a marginal advantage in irritability with galantamine.

A prospective, open-label trial of galantamine in autistic disorder. Nicolson R, Craven-Thuss B, Smith J. J Child Adolesc Psychopharmacol. 2006 Oct;16(5):621-9 Eight of 13 participants were rated as responders on the basis of their improvement scores on the Clinical Global Impressions scale. Overall, galantamine was well-tolerated, with no significant adverse effects apart from headaches in one patient. CONCLUSION: In this open trial, galantamine was well-tolerated and appeared to be beneficial for the treatment of interfering behaviors in children with autism, particularly aggression, behavioral dyscontrol, and inattention.  This is interesting in that it is a acetylcholine esterase inhibitor that specific finds its way to act in the CNS.  It works to slow the clinical symptomatic progress of Alzheimer’s disease, and through this we can say that it is a safe drug.

Galantamine in the treatment of adult autism: a report of three clinical cases. Hertzman M. Int J Psychiatry Med. 2003;33(4):395-8

Galantamine and donepezil attenuate pharmacologically induced deficits in prepulse inhibition in rats. Hohnadel E, Bouchard K, Terry AV Jr. Neuropharmacology. 2007 Feb;52(2):542-51.

 

 

 

Lamotrigine (a modifier of glutamate release, used as an antiepileptic drug. Epilepsy is commonly found in autism, particularly young teens)

 

Belsito KM, Law PA, Kirk KS, Landa RJ, Zimmerman AW. Lamotrigine therapy for autistic disorder: a randomized, double-blind, placebo-controlled trial. J Autism Dev Disord. 2001 Apr;31(2):175-81. (they did not feel that any advantage was seen)

Enalapril (ACE inhibitor)

Understanding co-morbidities affecting children with epilepsy. Pellock JM. Neurology. 2004 Mar 9;62(5 Suppl 2):S17-23.

[Antiepileptic drugs in the treatment of autistic regression syndromes] García-Peñas JJ. Rev Neurol. 2005 Jan 15;40 Suppl 1:S173-6. Spanish

 

 

Risperidone

 

Nagaraj R, Singhi P, Malhi P. Risperidone in children with autism: randomized, placebo-controlled, double-blind study. J Child Neurol. 2006 Jun;21(6):450-5.   Risperidone was associated with increased appetite and a mild weight gain, mild sedation in 20%, and transient dyskinesias in three children. Risperidone improved global functioning and social responsiveness while reducing hyperactivity and aggression in children with autism and was well tolerated.

 

West L, Waldrop J.  Risperidone use in the treatment of behavioral symptoms in children with autism. Pediatr Nurs. 2006 Nov-Dec;32(6):545-9. Review

 

Chavez B, Chavez-Brown M, Rey JA. Role of risperidone in children with autism spectrum disorder. Ann Pharmacother. 2006 May;40(5):909-16.

 

Miral S, Gencer O, Inal-Emiroglu FN, Baykara B, Baykara A, Dirik E. Risperidone versus haloperidol in children and adolescents with AD : A randomized, controlled, double-blind trial. Eur Child Adolesc Psychiatry. 2008 Feb;17(1):1-8. Epub 2007 (they claim that risperidone is better, with both having low side effect, at keeping AD patient calmer)

 

Jesner OS, Aref-Adib M, Coren E. Risperidone for autism spectrum disorder.  Cochrane Database Syst Rev. 2007 Jan 24;(1):CD005040.  As in many other Cochrane studies, they decide that the assessment of value in autism is exceptionally difficult and with relatively small numbers.  As such they cannot state the specific value for the treatment.

 

Aman MG, Hollway JA, McDougle CJ, Scahill L, Tierney E, McCracken JT, Arnold LE, Vitiello B, Ritz L, Gavaletz A, Cronin P, Swiezy N, Wheeler C, Koenig K, Ghuman JK, Posey DJ. Cognitive effects of risperidone in children with autism and irritable behavior. J Child Adolesc Psychopharmacol. 2008 Jun;18(3):227-36 (all they could say really was that there was no detrimental effects of the drug on 38 children being tested. )

Atypical antipsychotics in children and adolescents with autistic and other pervasive developmental disorders. McDougle CJ, Stigler KA, Erickson CA, Posey DJ. J Clin Psychiatry. 2008;69 Suppl 4:15-20.

Abnormal movements with the addition of clindamycin to risperidone in a girl with autism. Malone RP, Harvey JA. J Child Adolesc Psychopharmacol. 2008 Apr;18(2):221-2.

Risperidone in the treatment of behavioral disorders associated with autism in children and adolescents. Canitano R, Scandurra V. Neuropsychiatr Dis Treat. 2008 Aug;4(4):723-30

Risperidone for attention-deficit hyperactivity disorder in people with intellectual disabilities. Thomson A, Maltezos S, Paliokosta E, Xenitidis K.  Cochrane Database Syst Rev. 2009 Apr 15;(2):CD007011.  This takes many of the assessments at treatment of symptoms and tried to find whether they were successful statistically and reliably.  CONCLUSIONS: There is no evidence from RCTs that risperidone is effective for the treatment of ADHD in people with ID. Prescribing in this population can only be based on open-label studies or extrapolation from research in people with autism and disruptive behaviour disorders; however these studies have not investigated people with ID separately so there are reservations regarding the applicability of these findings.

Does risperidone improve hyperacusia in children with autism? Ghanizadeh A. Psychopharmacol Bull. 2009;42(1):108-10.  This was a fascinating study in 5 patients. Hyperacusia was improved after initiation of risperidone and disappeared after discontinuation of risperidone. It re-happened in the re-challenge test. 

 

 

Atomoxetine

Atomexetine is an antidepressant, mainly used for treating attention deficit hyperactivedisorder (ADHD) in 2005 has been tried out on individual patients since then.

 

Arnold LE, Aman MG, Cook AM, Witwer AN, Hall KL, Thompson S, Ramadan Y. Atomoxetine for hyperactivity in autism spectrum disorders: placebo-controlled crossover pilot trial. J Am Acad Child Adolesc Psychiatry. 2006 Oct;45(10):1196-205.

 

Niederhofer H, Damodharan SK, Joji R, Corfield A. Atomoxetine treating patients with Autistic disorder. Autism. 2006 Nov;10(6):647-9.

Olanzapine (an antipsychotic, aimed against anxiety)

 

 

Antipsychotics

 

Posey DJ, Stigler KA, Erickson CA, McDougle CJ. Antipsychotics in the treatment of autism.  J Clin Invest. 2008 Jan;118(1):6-14.  They are frequently used to treat irritability and associated behaviours including aggression and self injury. They may also be efficacious for hyperactivity and stereotyped behavior.

 

Hollander E, Wasserman S, Swanson EN, Chaplin W, Schapiro ML, Zagursky K, Novotny S. A double-blind placebo-controlled pilot study of olanzapine in childhood/adolescent pervasive developmental disorder. J Child Adolesc Psychopharmacol. 2006 Oct;16(5):541-8. Basically showing that they could alleviate some symptoms.

The role of antipsychotics in the management of behavioural symptoms in children and adolescents with autism. Malone RP, Waheed A. Drugs. 2009;69(5):535-48. It admits that the  major use for these can only be for severe tantrums.  The most studied antipsychotic drugs include haloperidol and risperidone, although studies of other antipsychotic drugs are underway. Safety concerns associated with treatment include the risk of drug-related dyskinesias, which is greater with the first-generation drugs, and the risk of weight gain and associated metabolic problems (i.e. increases in glucose and lipids), which is greater with second-generation agents. Prescription of antipsychotic drugs requires careful monitoring because of these safety risks and the likelihood of long-term use. Drug administration should be initiated at low dosages and subsequent dosage changes should be based on tolerability and clinical response

Ziprasidone in adolescents with autism: an open-label pilot study. Malone RP, Delaney MA, Hyman SB, Cater JR. J Child Adolesc Psychopharmacol. 2007 Dec;17(6):779-90. (A very small pilot study)

The effect of a switch to ziprasidone in an adult population with autistic disorder: chart review of naturalistic, open-label treatment. Cohen SA, Fitzgerald BJ, Khan SR, Khan A. J Clin Psychiatry. 2004 Jan;65(1):110-3.  This was mainly a trying of a new antipsychotic because older ones made the recipient obese etc.  The mean +/- SD daily dose of ziprasidone was 128 +/- 41 mg, and all 10 patients continued with this same treatment after completion of the 6-month trial. Seven patients were found to have an improvement or no change in their maladaptive behavior. Eight patients (80%) lost weight (mean change = -13.1 +/- 7.0 lb [-5.9 +/- 3.2 kg]), 4 (80%) of 5 patients had a decrease in total cholesterol level, and 3 (60%) of 5 had a decrease in triglyceride levels. Data on lipid levels were available for 5 of the 10 patients. Behavioral activation was not noted in this population. There were no significant adverse effects associated with ziprasidone.

 

 

Selective serotonin reuptake inhibitors (also see SSRI in Serotonin)

These were considered because of the high levels of serotonin uptake that is seen in cells of autistics (again the reason is unclear).

 

Kolevzon A, Mathewson KA, Hollander E. Selective serotonin reuptake inhibitors in autism: a review of efficacy and tolerability. J Clin Psychiatry. 2006 Mar;67(3):407-14. (a review including the use of fluoxetine, the commonest in the UK.  Their meta-analysis, as many do, showed the current work warranted further randomised studies, and they also highlighted the side effects that workers had seen).

 

Fatemi SH, Realmuto GM, Khan L, Thuras P. Fluoxetine in treatment of adolescent patients with autism: a longitudinal open trial. J Autism Dev Disord. 1998 Aug;28(4):303-7. Improvement from baseline was seen in four subscales: irritability (21%), lethargy (37%), stereotype (27%), and inappropriate speech (21%).  Hyperactivity subscale improved by 14% but did not attain statistical significance. Fluoxetine appears to have important behavioral effects in treatment of clinic-referred autistic children.

 

 

Melatonin (also see hormones)

 

Garstang J, Wallis M. Randomized controlled trial of melatonin for children with autistic spectrum disorders and sleep problems. Child Care Health Dev. 2006 Sep;32(5):585-9. (Although the study was small owing to recruitment difficulties, it still provides evidence of effectiveness of melatonin in children with sleep difficulties and ASD, which we predict a larger study would confirm)

Nocturnal excretion of 6-sulphatoxymelatonin in children and adolescents with autistic disorder.Tordjman S, Anderson GM, Pichard N, Charbuy H, Touitou Y. Biol Psychiatry. 2005 Jan 15;57(2):134-8.

 

Giannotti F, Cortesi F, Cerquiglini A, Bernabei P. An open-label study of controlled-release melatonin in treatment of sleep disorders in children with autism. J Autism Dev Disord. 2006 Aug;36(6):741-52  (During treatment sleep patterns of all children improved. After discontinuation 16 children returned to pre-treatment score, readministration of melatonin was again effective. Treatment gains were maintained at 12 and 24-month follow-ups. No adverse side effects were reported. In conclusion, controlled-release melatonin may provide an effective and well-tolerated treatment for autistic children with chronic sleep disorders.)

 

Gupta R, Hutchins J. Melatonin: a panacea for desperate parents? (Hype or truth). Arch Dis Child. 2005 Sep;90(9):986-7.

Abnormal melatonin synthesis in autism spectrum disorders. Melke J, Goubran Botros H, Chaste P, Betancur C, Nygren G, Anckarsäter H, Rastam M, Ståhlberg O, Gillberg IC, Delorme R, Chabane N, Mouren-Simeoni MC, Fauchereau F, Durand CM, Chevalier F, Drouot X, Collet C, Launay JM, Leboyer M, Gillberg C, Bourgeron T.  Mol Psychiatry. 2008 Jan;13(1):90-8.  A low melatonin level has been reported in individuals with autism spectrum disorders (ASD), but the underlying cause of this deficit was unknown.  They are saying that there is a poor connection between daytime and night time vs the production of melanin in autistic children.  Also they follow the gene that produces it and suggest that this may be involved.

Assessment and pharmacologic treatment of sleep disturbance in autism. Johnson KP, Malow BA. Child Adolesc Psychiatr Clin N Am. 2008 Oct;17(4):773-85, viii. Review.

Melatonin for insomnia in children with autism spectrum disorders. Andersen IM, Kaczmarska J, McGrew SG, Malow BA.  J Child Neurol. 2008 May;23(5):482-5.

A randomized, placebo-controlled trial of controlled release melatonin treatment of delayed sleep phase syndrome and impaired sleep maintenance in children with neurodevelopmental disabilities. Wasdell MB, Jan JE, Bomben MM, Freeman RD, Rietveld WJ, Tai J, Hamilton D, Weiss MD. J Pineal Res. 2008 Jan;44(1):57-64. Overall, the therapy improved the sleep of 47 children and was effective in reducing family stress. Children with neurodevelopmental disabilities, who had treatment resistant chronic delayed sleep phase syndrome and impaired sleep maintenance, showed improvement in melatonin therapy

Melatonin in treatment of chronic sleep disorders in adults with autism: a retrospective study. Galli-Carminati G, Deriaz N, Bertschy G. Swiss Med Wkly. 2009 May 16;139(19-20):293-6

 

 

 

Guanfacine

 

Posey DJ, McDougle CJ.  Guanfacine and guanfacine extended release: treatment for ADHD and related disorders.

CNS Drug Rev. 2007 Winter;13(4):465-74 (Small placebo-controlled trials support the use of guanfacine for the treatment of ADHD. There is more limited research on the use of guanfacine in treating hyperactivity occurring in children diagnosed with PDD)

 

Handen BL, Sahl R, Hardan AY. Guanfacine in Children with Autism and/or Intellectual Disabilities.  J Dev Behav Pediatr. 2008 Jun 12. Guanfacine, an alpha2-adrenergic receptor agonist, has shown some promise as an alternative to psychostimulants.  Significant benefits were observed on the Hyperactivity subscale of the parent and teacher Aberrant Behavior Checklist (ABC) and Global Improvement Ratings. No gains were noted on other ABC subscales. Five of the 11 subjects (45%) were judged to be responders based on a 50% decrease in the ABC Hyperactivity subscale score between the placebo and guanfacine conditions. Several side effects were reported, including drowsiness and irritability.

 

 

 

Mirtizapine

 

Coskun M, Mukaddes NM. Mirtazapine treatment in a subject with autistic disorder and fetishism. J Child Adolesc Psychopharmacol. 2008 Apr;18(2):206-9. (this is basically in the treatment for sexual fetishism)

 

 

St John’s Wort (a small yellow plant found throughout Europe).  It produces compounds which are known to calm patients

St John's Wort treating patients with autistic disorder. Niederhofer H. Phytother Res. 2009 Mar 9. Subjects were included in the study if their eye contact and expressive language was inadaequate for their developmental level and if they had not tolerated or responded to other psychopharmacologic treatments (methylphenidate, clonidine or desipramine). Parent and mentor ratings on the Aberrant Behavior Checklist, irritability, stereotypy, and inappropriate speech factors improved slightly during treatment with St John's Wort. Clinician ratings (Psychiatric Rating Scale Autism, Anger and Speech Deviance factors; Global Assessment Scale; Clinical Global Impressions efficacy) did not improve significantly.

 

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Anti-infective Agents

The aim being to change the number and type of bacteria and yeast present in the gut:  See site concerning gut flora.  Notably see the section concerning probiotics (i.e. taking in low pathogenicity bacteria and yeasts in the diet) as the section goes into the use of these in other inflammatory conditions of the gut. 

 

Anti-fungals: aimed at stopping the overgrowth of yeasts in the gut flora. E.g. fluconazole.  No useful scientific data available.

 

Anti-bacterials aimed at the anaerobes: e.g. metronidazole.  No useful scientific data although this has been stated at conferences with Finegold.

 

Vancomycin (active against all Gram-positive bacteria).  Shown to have a notable activity in improving autism.  See Sandler in the gut flora section of the web site.  The reason for this is currently uncertain and the drug is only available by medical prescription. The drug is very expensive and effect appears to go after it is stopped.

 

Monolaurin, a small chain fatty acid type antibiotic that is given orally.  There is no scientific published evidence that it is of any advantage but many individual parents claiming its activity.  Available over the internet.

 

Acyclovir (an inhibitor of the ability of herpes viruses to infect cells) .  Now there is suggestions  that this has no significant value.

Antibiotics: a possible treatment for regressive-onset autism. Whelan J.  Drug Discov Today. 2000 Nov 1;5(11):487-488. (this is a review of what has been found as this point). 

Short-term benefit from oral vancomycin treatment of regressive-onset autism. Sandler RH, Finegold SM, Bolte ER, Buchanan CP, Maxwell AP, Väisänen ML, Nelson MN, Wexler HM.  J Child Neurol. 2000 Jul;15(7):429-35.  This doesn’t say a lot but it is clearly an important result in which autistic children were treated with vancomycin and there was improvement.  When the drug was stopped the effect disappeared.  This suggested that gut bacterial things will alter the psyche of the child.

 


 

Serotonin (see above).

Explanation is complex: partly because we simply don’t know why in a large proportion of autistic cases there is an change in serotonin distribution in the blood. See serotonin

 

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Immunotherapy (Pioglitazone, Transfer Factor, Phosphodiesterase inhibitor, Steroids/ACTH, Thalidomide, Pentosan, Gamma-globulin)

The aim being to decrease the inflammation seen in the gut wall and to some degree in the brain.  As a result several drugs have been tested but with only minor reports for some. 

 

Sperner-Unterweger B. Immunological aetiology of major psychiatric disorders: evidence and therapeutic implications.

Drugs. 2005;65(11):1493-520. Review.  (a wide review)

 

Gupta S.  Immunological treatments for autism. J Autism Dev Disord. 2000 Oct;30(5):475-9.  review e.g. Steroids.  The idea is to decrease the immune response to external factors and to internal autoimmunes. 

 

 

Pioglitazone

In fact this is a drug used in diabetes that for some reason appeared to have some advantage in Alzheimer’s disease, in which a specific form of damage takes place in the brain. 

 

Boris M, Kaiser CC, Goldblatt A, Elice MW, Edelson SM, Adams JB, Feinstein DL. Effect of pioglitazone treatment on symptoms in autistic children. J Neuroinflammation. 2007 Jan 5;4:3 (small numbers, anti-inflammatory effect in brain etc).  Feinstein DL Therapeutic potential of peroxisome proliferator-activated receptor agonists for neurological disease.  Diabetes Technol Ther. 2003;5(1):67-73.  They did work in vitro on cell cultures looking at the PPAR activation, which can have additional effects upon cellular physiology, including anti-proliferative and anti-inflammatory. These effects are observed in many cell types, including brain glial cells and blood lymphocytes, cells whose activation contributes to the initiation and progression of damage occurring in neurological diseases such as Alzheimer's disease (AD) and multiple sclerosis (MS). In view of the need for development of additional therapeutic options, several recent studies have tested the possibility that PPAR agonists would be neuroprotective in these diseases.  Notably the effect is probably also seen in autism.  (don’t forget other PPARs like rosiglitazone and others e.g. Pershadsingh HA. Peroxisome proliferator-activated receptor-gamma: therapeutic target for diseases beyond diabetes: quo vadis? Expert Opin Investig Drugs. 2004 Mar;13(3):215-28.  The reasons behind it all are to do with decreasing the action of microglia and astrocytes: Storer PD, Xu J, Chavis J, Drew PD. Peroxisome proliferator-activated receptor-gamma agonists inhibit the activation of microglia and astrocytes: implications for multiple sclerosis. J Neuroimmunol. 2005 Apr;161(1-2):113-22. and that may make sense when you see this paper:  Vargas DL, Nascimbene C, Krishnan C, Zimmerman AW, Pardo CA. Neuroglial activation and neuroinflammation in the brain of patients with autism. Ann Neurol. 2005 Jan;57(1):67-81. Erratum in: Ann Neurol. 2005 Feb;57(2):304

 

Pioglitazone as a therapeutic agent in autistic spectrum disorder. Emanuele E, Lossano C, Politi P, Barale F. Med Hypotheses. 2007;69(3):699. (this explains how the immune effects of pioglitazone may actually be therapeutic. )

 

 

 

Gamma globulin

This was tried out in the idea of the transfer factor being simply a gamma globulin and the reports from elsewhere being that there would be some advantage.  See immunology.

 

 

Transfer Factor

This is a fairly non-specific affair in which a compound (protein, chemical but not a cell) can be transferred from the blood of a well animal and cause the alleviation of disease in humans.  Because it is not a specific serum-derived injection it cannot be a pharmaceutical as such and very difficult to demonstrate as safe.  However, simply finding it as being effective in any way would be an insight into the pathology of the disease: see Fudenberg.   

 

Lawrence HS, Borkowsky W. Transfer factor--current status and future prospects. Biotherapy. 1996;9(1-3):1-5.

 

Fudenberg HH, Fudenberg HH. Transfer factor: past, present and future. Annu Rev Pharmacol Toxicol. 1989;29:475-516. Review.

 

Fudenberg HH.. Dialysable lymphocyte extract (DLyE) in infantile onset autism: a pilot study. Biotherapy. 1996;9(1-3):143-7. (They found that a high proportion of the children improved dramatically and the effect went away when the treatment was stopped) (I’m quite surprised that it got the OK for the research on what was clearly such a baseline piece of study! It is mentioned in Phillis Kidd’s review: Kidd PM. Autism, an extreme challenge to integrative medicine. Part 2: medical management. Altern Med Rev. 2002 Dec;7(6):472-99. and review: Sperner-Unterweger B. Immunological aetiology of major psychiatric disorders: evidence and therapeutic implications. Drugs. 2005;65(11):1493-520.

Immunoglobulins: see under immunology above

 

Schneider CK, Melmed RD, Barstow LE, Enriquez FJ, Ranger-Moore J, Ostrem JA. Oral human immunoglobulin for children with autism and gastrointestinal dysfunction: a prospective, open-label study. J Autism Dev Disord. 2006 Nov;36(8):1053-64. (They carried out twelve male subjects diagnosed with AD were evaluated using a GI severity index (GSI) while receiving daily dosing with encapsulated human immunoglobulin. Following eight weeks of treatment, 50% of the subjects met prespecified criteria for response in GI signs and symptoms and showed significant behavioral improvement as assessed by the Autism Behavior Checklist) However this was not a controlled trial and the data was not present for stopping the drug.

 

 

 

A phosphodiesterase inhibitor, which acts against the action of TNF-alpha.

Plioplys G.  Intravenous immunoglobulin treatment of children with autism.  J Child Neurol 1998;13:79-82.

Pentoxifylline: A selective phosphdiesterase inhibitor that acts against allergies partly by inhibiting TNF-alpha.  It also increases the blood flow to the brain by allowing an increase in the deformability of the red cell membranes.  This must be one of the many drugs that are now useful for use in the treatment of inflammatory bowel disease..showing that many further ones have not yet been considered in autism.

 

 

 

Steroids and ACTH

 

Geier MR, Geier DA. The potential importance of steroids in the treatment of autistic spectrum disorders and other disorders involving mercury toxicity. Med Hypotheses. 2005;64(5):946-54.  (This is the hepothesis that if you can do something about the immunity against the mercury of the vaccines etc then improvement may be seen)

 

Matarazzo EB.  Treatment of late onset autism as a consequence of probable autommune processes related to chronic bacterial infection.  World J Biol Psychiatry. 2002 Jul;3(3):162-6. Adrenocorticotrophic hormone (ACTH), prescribed in the first months of the disease, cured one case. The other patient, who was two years old when autistic symptoms appeared and was treated only six years later, showed a partial but definitive improvement with the immunosuppressive treatment.

 

 

Spironolactone

This is an inhibitor of aldosterone, a steroid hormone produced by the adrenal gland, and its job is to modify the sodium and potassium levels in the blood by altering the absorption by the kidney tubeules.  It does claim potent immune modifying properties that might make it an excellent medical intervention in autism (hence the hypothesis below)

 

Bradstreet JJ, Smith S, Granpeesheh D, El-Dahr JM, Rossignol D.Spironolactone might be a desirable immunologic and hormonal intervention in autism spectrum disorders. Med Hypotheses. 2007;68(5):979-87. Epub 2006 Dec 5 (they also tried it out on a single patient, who appeared to improve)

 

 

Thalidomide 

 

I can find no data on its use in autism but it would seem reasonable to have tried.  The drug, apart from awful effect on the foetus, and it effect in calming and inducing sleep, was noticed in Africa to have an amazing effect on erythema nodosum leprosum.  This took place in people treated for leprosy in which the dead bacteria in the skin were destroyed by the body’s immune system and released cytokines that damaged the skin at the same time.  It was very serious and so thalidomide, which made a dramatic effect, is now the standard treatment for ENL.  The mechanism by which it worked was by inhibiting the production of TNF-alpha, neutrophil phagocytosis, monocyte chemotaxis and angiogenesis (and probably plenty more).  There are other (not licensed) derivatives of thalidomide that do all these things without the psychological side effects.  For data on its use in inflammatory bowel disease see ‘gut flora’.

 

 

Pentosan polysulphate. 

 

Acts against cytokines by interacting with heparan binding sites on cell surfaces.  Given orally the attempt is to decrease the inflammatory nature of the gut without steroids. No published data.

 

Gamma-globulins from other people:  this is taken as a serum fragment from a normal person and injected into the autistic one. See inflammation.

 

 

Bacteria flora for the gut:  the idea being that prevent any other infection getting in.

Saccharomyces boulardii: potential adjunctive treatment for children with autism and diarrhea. Linday LA. J Child Neurol. 2001 May;16(5):387.

 

 

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Thyroid hormones

This is suggesting that the thyroid releasing hormone changes and autoimmunity against thyroid factors may be involved.  No good data concerning treatment using thyroid hormones.

 

Cook EH. Autism: review of neurochemical investigation. Synapse 1990;6:292-308. Showed a high rate of abnormal response to TRH challenge

 

Adams JB, Holloway CE, George F, Quig D.  Analyses of toxic metals and essential minerals in the hair of Arizona children with autism and associated conditions, and their mothers. Biol Trace Elem Res. 2006 Jun;110(3):193-209. One study by Adams et al found that many children with autism have unusually low levels of iodine in their hair, which possibly suggests a low level in their body and need for more.

 

Román GC. Autism: transient in utero hypothyroxinemia related to maternal flavonoid ingestion during pregnancy and to other environmental antithyroid agents. J Neurol Sci. 2007 Nov 15;262(1-2):15-26. Epub 2007 Jul 24. (they have tried giving a thyroid hormone decrease to animals for a short period during pregnancy.  This caused neurological illness in the offspring.  The association between autoimmunity in autism is seen above (see Singh-K) and how immunity against the thyroid has been seen.

 

 

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Nutrient Therapy.  Also see folate, B12, tetrahyrobiopterin, fatty acids

One reason why this can be at least tried easily by parents is that commonly it does not involve pharmaceuticals and because vitamins are easily available from local pharmacies or on the internet.  However filled with good ideas, the data for many of the claims is missing.

 

Isaacson et al., “Autism: A Retrospective Outcome Study of Nutrient Therapy,” Journal of Applied Nutrition, vol. 48, No. 4, 1996. 

 

Kidd PM. Autism, an extreme challenge to integrative medicine. Part 2: medical management. Altern Med Rev. 2002 Dec;7(6):472-99.

 

Johnson S. Micronutrient accumulation and depletion in schizophrenia, epilepsy, autism and Parkinson's disease? Med Hypotheses. 2001 May;56(5):641-5  (Johnson goes into why there may be significance in diet)

 

Raiten DJ, Massaro T  Perspectives on the nutritional ecology of autistic children.  Autism Dev Disord. 1986 Jun;16(2):133-43.  (this is an interesting article in that it showed no nutritional inadequacy in autistic children, and only being less than controls with vitamin A, C and fats.  It does mean that vitamin treatment may not be fully rational unless there is specific biochemistry that is pushing it forward)

 

Rimland B. Controversies in the treatment of autistic children: vitamin and drug therapy. J Child Neurol. 1988;3 Suppl:S68-72.

 

 

Vitamins of various kinds as mixtures

 

Adams JB, Holloway C.Pilot study of a moderate dose multivitamin/mineral supplement for children with autistic spectrum disorder. J Altern Complement Med. 2004 Dec;10(6):1033-9.  (see fatty acids above)

 

Lonsdale D, Shamberger RJ, Audhya T. Treatment of autism spectrum children with thiamine tetrahydrofurfuryl disulfide: a pilot study. Neuro Endocrinol Lett. 2002 Aug;23(4):303-8. Thiamine tetrahydrofurfuryl disulfide appears to have a beneficial clinical effect on some autistic children, since 8 of the 10 children improved clinically. We obtained evidence of an association of this increasingly occurring disease with presence of urinary SH-reactive metals, arsenic in particular.

 

Niacin and B6:  Kleijnen J, Knipschild P.  Niacin and vitamin B6 in mental functioning: a review of controlled trials in humans.Biol Psychiatry. 1991 May 1;29(9):931-41 (Fifty-three controlled trials of the effects of niacin, vitamin B6, and multivitamins on mental functions are reviewed. The results are interpreted with emphasis on the methodological quality of the trials. It turns out that virtually all trials show serious short-comings: in the number of participants, the presentation of baseline characteristics and outcomes, and the description of changes in concomitant treatments. Only in autistic children are some positive results are found with very high dosages of vitamin B6 combined with magnesium, but further evidence is needed before more definitive conclusions can be drawn.’)

 

Rimland B, Callaway E, Dreyfus P. The effect of high doses of vitamin B6 on autistic children: a double-blind crossover study. Am J Psychiatry. 1978 Apr;135(4):472-5. (they felt there was an advantage)

 

 

Vitamin D3:  No useful scientific data available.

 

High dose Vitamin A (very high doses for short period suggested to clear the body of measles virus).   No scientific data available in terms of treatment.  There is an hypothesis that autism is associated with a G-protein modification, which is brought back to normal using Vit A see Megson-M.  in 2000.

 

Activated B6.  (see the literature on magnesium and activated B6)

This is considered because pyridoxal (B6) seems to be in high concentrations and this suggests that it is not being turned into pyrodoxal-5-phosphate (activated B6) in the body adequately.

 

Adams JB, George F, Audhya T. Abnormally high plasma levels of vitamin B6 in children with autism not taking supplements compared to controls not taking supplements. J Altern Complement Med. 2006 Jan-Feb;12(1):59-63. (indicating that the body has difficulty in changing the B6 to the phosphated form).  Adams also has tried to show an advantage (or not) clinically in cases with autism that were taking the activated B6

 

Coleman M, Steinberg G, Tippett J, Bhagavan HN, Coursin DB, Gross M, Lewis C, DeVeau L. A preliminary study of the effect of pyridoxine administration in a subgroup of hyperkinetic children: a double-blind crossover comparison with methylphenidate.

Biol Psychiatry. 1979 Oct;14(5):741-51. (The children had had low whole blood serotonin levels – which is a bit odd in itself - and a history of previous responsiveness to methylphenidate. The results of the double-blind clinical evaluation showed trends suggesting that both pyridoxine and methylphenidate were more effective than placebo in suppressing the symptoms of hyperkinesis. Pyridoxine elevated whole-blood serotonin levels, methylphenidate did not. Clinical and laboratory evidence indicated that the pyridoxine effects persisted after the 3-week period when the vitamin had been given in this experimental design.  Inadequate statistics were put with the data)

 

Taurine: 

Gaull GE. Taurine in pediatric nutrition: review and update. Pediatrics. 1989 Mar;83(3):433-42. Review

No evidence of significance in autism. Moreno-Fuenmayor H, Borjas L, Arrieta A, Valera V, Socorro-Candanoza L. Plasma excitatory amino acids in autism. Invest Clin. 1996 Jun;37(2):113-28. (they showed no particular oddity for the levels of taurine in the  blood of autistic children but eleven children had increased aspartic acid and eight children had high levels of glutamate; seven of these children had a concomitant increment of taurine.)

 

Terahydrobiopterin: clinical advantage but complex study: see below.  Folate: no advantage found: see below

 

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Gut modifiers: 

 

Enzymes as part of the diet. 

The suggestion is that the inflammation that appears to take place in the upper bowel may give rise to a lack of disaccharidases and other similar enzymes that are generally present in the gut wall.   The problem with the theorising is that there is no clinical study published that assesses the value of giving oral enzymes (generally derived gut and pancreas of cattle at slaughter).

 

Horvath K et al, Gastrointestinal abnormalities in children with autistic disorder,” J. Pediatrics 135;no. 5 (1999) 559-563.

 

Horvath K and Perman JA  “Autistic disorder and gastrointestinal disease,” Curr. Opinion in Pediatrics, 14 (2002) 583.

 

Kushak R and Buie T “Disaccharidase deficiencies in patients with autistic spectrum disorders,” presented at DAN! New Orleans Jan 2004.

 

Kushak R, Winter W, Farber N, Buie T.  Gastrointestinal symptoms and intestinal disaccharidase activities in children with autism.  J Pediatri Gastroenterol Nutr.  2005;41:508.

 

 

Larazotide: Modifier of gut membrane tight junctions

The data that the gut of an autistic child will absorb larger compounds to a much greater degree than a control, and the possibility that it will permit the penetration of compounds from the gut (e.g. bacteria associated peptides or poorly digested food) that would not otherwise enter the portal system to the liver both suggest that tight junctions may be involved.  These are the attachments of one cell to the next between all the cells of the surface membranes of the gut wall.  With tight junctions being active it is found that many compounds cannot bypass the cells and enter the blood, but must pass through the cells themselves to get into the body.  However, if the tight junctions are inadequate what happens is that the blockage of many compounds does not take place.  

 

 An epithelial cell on the gut wall that is joined to the one next to it by tight junctions (pink) and various other complex systems that allow compounds to pass from within one cell to the next.  The most important factor about the tight junction is that it prevents compounds bypassing the cell to get into the body.  As a result, absorbed compounds are much more decided by the cellular action than if the tight junctions were not active.

The claim is that larazotide (AT 1001) is able to cause tight junction to act more efficiently or appear again whereas previously they no longer acted. 

Tight junctions, leaky intestines, and pediatric diseases. Liu Z, Li N, Neu J. Acta Paediatr. 2005 Apr;94(4):386-93. This review provides an overview of evidence for the role of tight junctions breakdown in diseases such as systemic inflammatory response syndrome (SIRS), inflammatory bowel disease, type 1 diabetes, allergies, asthma, and autism.

The safety, tolerance, pharmacokinetic and pharmacodynamic effects of single doses of AT-1001 in coeliac disease subjects: a proof of concept study. Paterson BM, Lammers KM, Arrieta MC, Fasano A, Meddings JB. Aliment Pharmacol Ther. 2007 Sep 1;26(5):757-66

Reducing small intestinal permeability attenuates colitis in the IL10 gene-deficient mouse. Arrieta MC, Madsen K, Doyle J, Meddings J. Gut. 2009 Jan;58(1):41-8.

 

Larazotide (image from ChemBlink) = AT1001

 

As you can see, Larazotide is an octapeptide.  To some degree it is not surprising that it penetrates the gut in order to carry out its action on tight junctions in that this type of penetration is carried out by many small peptides.  However, in ASD we may well find that it has exceptionally good penetration.

 

At the moment the research is going towards the most obvious usage; the treatment of patients with celiac disease and they claim that the drug appears to work in that condition but with relatively low case numbers.  A major trial with the disease is imminent.  However the researcher, Alessio Fasano is quite clear in his ability to look into many other aspects of its usage and included autism in this. 

 


 

 

Gluten-free, casein-free diets (and some with low sugars and low additives)

This follows the suggestion that opioid peptides present in diet penetrate into the brain and cause a change in its activity.  The data is varying according to the researcher but there does appear to be some evidence that it has some ability.  Claims by parents that the return of even minute amounts of the food to the diet by mistake may cause a clear  affect on the autism is interesting (simply because there is a tendency for neurones to produce more receptors when there is a lack of stimulating compound), but there is no scientific data currently.  Also see naltrexone.

 

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Carnitine   

A simple compound that is involved in the it is required for the transport of fatty acids from the cytosol into the mitochondria during the breakdown of lipids (or fats) for the generation of metabolic energy.  The carnitines exert a substantial antioxidant action, thereby providing a protective effect against lipoperoxidation of phospholipid membranes and against oxidative stress induced at the myocardial and endothelial cell level. 

 

 

 

Filipek PA, Juranek J, Nguyen MT, Cummings C, Gargus JJ. Relative carnitine deficiency in autism. J Autism Dev Disord. 2004;34:615-623. A random retrospective chart review was conducted to document serum carnitine levels on 100 children with autism. Concurrently drawn serum pyruvate, lactate, ammonia, and alanine levels were also available in many of these children. Values of free and total carnitine (p < 0.001), and pyruvate (p = 0.006) were significantly reduced while ammonia and alanine levels were considerably elevated (p < 0.001) in our autistic subjects. The relative carnitine deficiency in these patients, accompanied by slight elevations in lactate.  There does not appear to be clinical evaluation of giving carnitine as a therapeutic measure currently.

 

 

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Glutathione

Used as an antioxidant supply of SH (may use other liver herbs with it).  The problem is that it should not be given as an oral drug in that it will not reach most tissues in the body.  Because of this it seems extremely difficult to carry out studies concerning the treatment using glutathione.

The formation of glutathione, in order to act as an antioxidant..  Large amounts of work (involving Aw-T) has been to see the changes in gut wall oxidation and glutathione in inflammatory bowel diseases.

 

 

Aw TY. Intestinal glutathione: determinant of mucosal peroxide transport, metabolism, and oxidative susceptibility. Toxicol Appl Pharmacol. 2005 May 1;204(3):320-8. (summarizes our current understanding of the determinants of intestinal absorption and metabolism of peroxidized lipids. Supporting the pivotal role that glutathione (GSH) and reduced nicotinamide adenine dinucleotide phosphate (NADPH) play in mucosal transport and metabolism of lipid hydroperoxides and how reductant availability can be compromised under chronic stress such as hypoxia)

 

Aw TY, Wierzbicka G, Jones DP. Oral glutathione increases tissue glutathione in vivo. Chem Biol Interact. 1991;80(1):89-97. (it probably means in the gut wall)

 

Favilli F, Marraccini P, Iantomasi T, Vincenzini MT.Effect of orally administered glutathione on glutathione levels in some organs of rats: role of specific transporters. Br J Nutr. 1997 Aug;78(2):293-300 (GSH levels were measured simultaneously in various organs after oral GSH administration to untreated rats.  However levels were not increased in the liver where it interacted with gammaGT)

 

Williams TA, Mars AE, Buyske SG, Stenroos ES, Wang R, Factura-Santiago MF, Lambert GH, Johnson WG. Risk of autistic disorder in affected offspring of mothers with a glutathione S-transferase P1 haplotype. Arch Pediatr Adolesc Med. 2007 Apr;161(4):356-61. (They felt that the mother’s inability to deal with toxic factors permitted the damage to the foetus that had been seen)

 

Aw TY, Wierzbicka G, Jones DP. Oral glutathione increases tissue glutathione in vivo. Chem Biol Interact. 1991;80(1):89-97. (In a way it is surprising to find this as a pharmacokinetics for the oral product.  The reason being that is might be expected to excreted or broken down very easily.  As a result of this it may turn out to  be very useful)

 

Golse B, Debray-Ritzen P, Durosay P, Puget K, Michelson AM.  [Alterations in two enzymes: superoxide dismutase and glutathion peroxidase in developmental infantile psychosis (infantile autism) (author's transl)] Rev Neurol (Paris). 1978 Nov;134(11):699-705. (very poor stats with this one but they do suggest that there are changes that can be measured and potentially changed)

 

 

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Slippery elm and gut supporting herbs e.g. aloe vera, glutamine, peppermint and ginger:  No data is available.

 


 

Metal modification in the diet

The data concerning the use of many of these must be difficult to interpret in that there is argument concerning whether the patient has (or does not) and excess. 

 

 

Hypocalcinurics Improve with Calcium Supplementation Lower Hair Calcium in Autistics Reported (Dev Brain Dysfunct 1994; 7: 63-70)

Gamma amino butyric acid.  Cohen BI. Use of a GABA-transaminase agonist for treatment of infantile autism.  Med Hypotheses. 2002 Jul;59(1):115-6.  (so far there is no data that GABA is an advantage)

 

 

Magnesium sulphate salts.  Epsom salts in the bath as an attempt to cause a greater uptake of sulphate.  The reason for this is that there is poor penetration and absorption of magnesium from the gut or sulphate in adequate amounts.  However it has been suggested that this is not through the skin. See Magnesium

 

Ferritin:  No scientific data is available.

 

Zinc.  No scientific data is available.

 


 

 

Pentoxifylline: blood flow increase

This, and it metabolites appear to increase the amount of oxygen present in tissues by improving microcirculation.  This may be by altering the deformability of red cells as they pass through.   Note that oxypentofylline as an action against the production of TNF-alpha.

 

Gupta S, Rimland B, Shilling PD. Pentoxifylline: brief review and rationale for its possible use in the treatment of autism. J Child Neurol. 1996 Nov;11(6):501-4. Review. (Little data)

 

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Heavy metals:  See metals for the systems used to modify the levels of mercury and others found in the body.

 


 

Tetrahydrobiopterin (BH4)

This is involved in the sulphation and cycle:  see the page concerning oxidation. 

 

 

 

Messahel S, Pheasant AE, Pall H, et al. Urinary levels of neopterin and biopterin in autism. Neurosci Lett 1998:241:17-20.

 

Fernell E, Watanabe Y, Adolfsson I, et al. Possible effects of tetrahydrobiopterin treatment in six children with autism--clinical and positron emission tomography data: a pilot study. Dev Med Child Neurol 1997;39:313-318. (During the treatment period, all parents reported improvements in the child's social functioning-mainly eye contact and desire to interact-and in the number of words or sounds which the child used. Small positive changes were noted on the Griffiths Developmental Scales between the two testing occasions. THBPt levels in CSF increased significantly after treatment.

 

Danfors T, von Knorring AL, Hartvig P, Langstrom B, Moulder R, Stromberg B, Torstenson R, Wester U, Watanabe Y, Eeg-Olofsson O. Tetrahydrobiopterin in the treatment of children with autistic disorder: a double-blind placebo-controlled crossover study.  J Clin Psychopharmacol. 2005 Oct;25(5):485-9. (Small nonsignificant changes in the total scores of Childhood Autism Rating Scale after 3- and 6-month treatment. In addition, a high positive correlation was found between response of the social interaction score and IQ.)

 


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Folate

(there is some data concerning folate receptor auto immunity – see Pub Med).

 

 

Eto I, Bandy MD, Butterworth CE Jr.  Plasma and urinary levels of biopterin, neopterin, and related pterins and plasma levels of folate in infantile autism.  J Autism Dev Disord. 1992 Jun;22(2):295-308.  (they found no difference in the plasma folate of 13 controls with autistics)

 

 


 

 

N,N,dimethylglycine.  This can be given as a treatment to autism but there is now evidence that there is no advantage

 

N_N_dimethylglycine image

Kern JK, Miller VS, Cauller PL, Kendall PR, Mehta PJ, Dodd M. Effectiveness of N,N-dimethylglycine in autism and pervasive developmental disorder. J Child Neurol. 2001 Mar;16(3):169-73.  there was a smaller proportion of negative changes in the dimethylglycine group, but the quantitative changes in the dimethylglycine behavioral assessments were not significantly different from what was observed among children who received placebo”

 


Stem Cell Therapy

There has been some data showing that there is a possibility of the body replacing damaged cells in the brain using injected stem cells.  The best data is from prion infections models in animals and the effect is quite remarkable.

 

Ichim TE, Solano F, Glenn E, Morales F, Smith L, Zabrecky G, Riordan NH.  Stem cell therapy for autism   J Transl Med. 2007 Jun 27;5:30.  (they data the theory from the idea that cord blood CD34+ cells taken from cord blood improves blood supply to the brain.  They propose that mesenchymal stem cells and cord blood CD34 cells may be useful in the treatment of autism.  At this point there is no data to show that they are right)

 


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