Today’s post is a summary of a small
part of the recent autism research. I am constantly amazed how much autism
related research is churned out every day. To anyone who says more autism research
is needed, just take a look at how much there already is !!
Facial
recognition of Autism?
Those working every day with special
needs children have long known that you can pretty quickly spot a child with
autism, without any lengthy diagnostic procedure.
Some advocates like to see autism as a
hidden disability and believe you cannot “look autistic.” They had better not
read this post.
I did write about facial recognition
of single gene autisms and rare diseases where a commercialized product
(Face2Gene) can now identify 200 conditions with 91% accuracy. This is from a
single photo of the face.
Now Chinese researchers have produce
software that can predict autism in pre-schoolers with 94% accuracy based on
automated analysis of a video.
Risk
assessment and automatic identification of autistic children based on
appearance
The
diagnosis of Autism Spectrum Disorder (ASD) is mainly based on some diagnostic
scales and evaluations by professional doctors, which may have limitations such
as subjectivity, time, and cost. This research introduces a novel assessment
and auto-identification approach for autistic children based on the appearance
of children, which is a relatively objective, fast, and cost-effective
approach. Initially, a custom social interaction scenario was developed,
followed by a facial data set (ACFD) that contained 187 children, including 92
ASD and 95 children typically developing (TD). Using computer vision techniques, some appearance
features of children including facial appearing time, eye concentration
analysis, response time to name calls, and emotional expression ability were
extracted. Subsequently, these features were combined and machine
learning methods were used for the classification of children. Notably, the
Bayes classifier achieved a remarkable
accuracy of 94.1%. The experimental results show that the extracted visual
appearance features can reflect the typical symptoms of children, and the
automatic recognition method can provide an auxiliary diagnosis or data support
for doctors.
The ASD group were all pre-school
children, aged between 20 and 60 months, with an average age of 33.4 months for
males and 31.5 months for females.
Like it or not, it seems that autistic
toddlers do look different and so it is not a hidden disability. Nobody should
be waiting years for a diagnosis.
Bullying
Most autism diagnosed today is mild,
level 1 autism. Some of this group really do struggle and can genuinely benefit
from pharmacologic therapies.
Bullying is one very common issue that
is faced and does not need drug therapy, it needs a different kind of
intervention.
A
preliminary analysis of teaching children with autism spectrum disorder
self-protection skills for bullying situations
Children
diagnosed with autism spectrum disorder are at high risk of being bullied, but
research on teaching children with autism self-protection skills for bullying
situations is scant. We taught five children self-protection skills for two
types of bullying (threats and unkind remarks) and consecutive bullying
occurrences. We first evaluated behavioral skills training and a textual prompt
to teach children to report threats of physical or material harm, provide a
disapproving statement after a first unkind remark, and occupy themselves with
an activity away from a bully after a second unkind remark. Additional tactics
were necessary to aid in the discrimination of bullying situations for two
children. There were increases in the self-protection skills with all children.
Results further support that an active-learning approach is efficacious in
teaching responses to bullying in simulated situations. Considerations for
teaching these skills while maintaining trust and rapport with children and
caregivers are discussed.
Having a sibling in the same school
can be an effective defence against bullying. It might be an older brother, as
was the case for Monty, but a younger sister can also be very effective. One
episode, of many, I witnessed at school was a young Swedish girl intervening on
behalf of her older Aspie-like brother. It really shocked the older boys and certainty
impressed me.
I think most bullying affects those
with level 1 autism. Those with severe autism would tend to have a 1:1
assistant and if he/she is doing their job there should not be the possibility
bullying. I am told that out in the real world kids with level 3 autism do get
bullied, which means the system has failed.
From the school’s perspective there is
also the opposite issue of the pupil with autism/ADHD attacking other pupils or
staff. This does happen and if the child is a large fully-grown male can lead
to very serious injury. It is not just those with level 3 autism who can do
this.
I think the best strategy to protect
against bullying is to ensure your child is in a caring environment at school
and is well integrated. This may be easier said than done, but it is possible
for many people. Then the other pupils will look out for the one with special
needs. This assumes you do not overdo it with who gets to be "special".
Special needs are not so special any
more, as was highlighted recently in the UK. For the most privileged group of
pupils, those going to private fee-paying schools, 41% are getting special
treatment in their exams due to their various special needs. Even in the regular
state schools, which for sure have a higher percentage of kids with actual
special needs, 26% of pupils get extra time in exams.
Nearly
one in three pupils in England given extra time in exams, says regulator
Nearly
a third of pupils in England were given 25% extra time to complete
their GCSEs and A-level exams following a surge in special exam
access arrangements being granted, data from Ofqual has shown.
The
figure is higher again among exam candidates in private schools where more than
two in five received 25% extra time in the last academic year, according to
England’s exams regulator.
The
total number of approved special access arrangements for GCSE, AS and A-level
exams rose by 12.3% in the 2023/24 school year compared to the year before, the
data has revealed.
·
Independent
centres 41.8%
·
Sixth form and FE
colleges 35%
·
Non-selective
state schools 26.5%
It
comes as education leaders have suggested more pupils are seeking support after
the pandemic due to a rise in young people with special educational needs and
disabilities (Send) and mental health issues.
Requests
for 25% extra time in exams was the most common approved access arrangement for
pupils with learning difficulties or disabilities, followed by computer
readers, scribes and speech recognition.
Folate
supplementation in mothers prevent pesticides causing neurodevelopmental
disorders in offspring
There is a lot of research about
folate (vitamin B9), birth defects and autism. From the early 1990s women were
encouraged to take folate supplements during pregnancy to avoid neural tube
defects and other congenital abnormalities.
Some individuals have mutations in the
MTHFR gene that impair their ability to convert folic acid into its active
form, L-methylfolate. For such individuals, taking methylated folate
supplements will be necessary.
More recently we have learned that
some people with adequate folate intake can lack folate inside their brain.
They have antibodies that block the transmission of folate across the blood
brain barrier.
We saw how one clinician is
prescribing high dose calcium folinate to couples wishing to reduce the risk of
autism in their future offspring, if they test positive themselves for folate
receptor auto-antibodies.
As we already know exposure to
pesticides and some other unnatural chemicals during pregnancy can lead to neurodevelopmental
disorders (NDDs) that include autism.
The paper below is interesting because
it looks as how to minimize the potential damage caused by exposure to
pyrethroid pesticides, one of the most common classes of pesticides in the US.
Folate
prevents the autism-related phenotype caused by developmental pyrethroid
exposure in prairie voles
Neurodevelopmental
disorders (NDDs) have dramatically increased in prevalence to an alarming one
in six children, and yet both causes and preventions remain elusive. Recent
human epidemiology and animal studies have implicated developmental exposure to
pyrethroid pesticides, one of the most common classes of pesticides in the US,
as an environmental risk factor for autism and NDDs. Our previous research has
shown that low-dose chronic developmental pyrethroid exposure (DPE) changes
folate metabolites in the adult mouse brain. We hypothesize that DPE acts
directly on molecular targets in the folate metabolism pathway, and that
high-dose maternal folate supplementation can prevent or reduce the
biobehavioral effects of DPE. We exposed pregnant prairie vole dams to vehicle
or deltamethrin (3 mg/kg every 3 days) with or without folate supplementation
(5 mg/kg methylfolate every 3 days). The resulting DPE offspring showed broad
deficits in five behavioral domains relevant to NDDs; increased plasma folate
concentrations; and increased neural expression of SHMT1, a cellular folate
cycle enzyme. Maternal folate supplementation prevented most of the behavioral
phenotype (except for repetitive behaviors) and caused potentially compensatory
changes in neural expression of FOLR1 and MTHFR, two other folate-related
proteins. We conclude that
DPE causes NDD-relevant behavioral deficits; DPE directly alters aspects
of folate metabolism; and preventative interventions targeting folate
metabolism are effective in reducing, but not eliminating, the behavioral
effects of DPE.
A round-up of
therapies to treat mouse autism
Treating human autism is not yet
mainstream, but treating autism in mice has been going on for decades. Of
course the idea is to use mouse models with a view to later treating humans.
The paper below is about mice, but it
is actually a very good summary of the current status of treatment options more
broadly.
It even covers the use of HDAC
inhibitors to use epigenetics as a treatment tool. Click on the link to read
the full text for free.
The Use of Nutraceutical and Pharmacological
Strategies in Murine Models of Autism Spectrum Disorder
Autism
spectrum disorder (ASD) is a common neurodevelopmental condition mainly
characterized by both a scarce aptitude for social interactions or
communication and engagement in repetitive behaviors. These primary symptoms
can manifest with variable severity and are often paired with a heterogeneous
plethora of secondary complications, among which include anxiety, ADHD
(attention deficit hyperactivity disorder), cognitive impairment, sleep
disorders, sensory alterations, and gastrointestinal issues. So far, no
treatment for the core symptoms of ASD has yielded satisfactory results in a
clinical setting. Consequently, medical and psychological support for ASD
patients has focused on improving quality of life and treating secondary
complications. Despite no single cause being identified for the onset and
development of ASD, many genetic mutations and risk factors, such as maternal
age, fetal exposure to certain drugs, or infections have been linked to the
disorder. In preclinical contexts, these correlations have acted as a valuable
basis for the development of various murine models that have successfully
mimicked ASD-like symptoms and complications. This review aims to summarize the findings of the
extensive literature regarding the pharmacological and nutraceutical
interventions that have been tested in the main animal models for ASD,
and their effects on core symptoms and the anatomical, physiological, or
molecular markers of the disorder.
The
body of research here summarized suggests that many therapeutic strategies have
yielded positive results for ASD core symptoms and ASD-linked cellular,
anatomical, and metabolic alterations at the preclinical level. These results
ultimately confirm clinical and in vitro evidence regarding the main pathways
involved in ASD pathogenesis and hint at the potential for the combination of
different types of treatment. The studies reviewed here showed that a
treatment’s success or failure in these models usually depends on
administration timing. The
best results are commonly achieved when protective treatment is given in the
first weeks after birth or prenatally. Unfortunately, this is not easily
translatable into clinical practice as ASD diagnosis, at the moment, postdates
this time window. Moreover, it is notable that most of the treatments employed
in these studies did not achieve significant improvements in all the behavioral
tests or definitive success in clinical trials. Despite the exact causes for
the disparity between promising preclinical results and modest or negative
clinical outcomes remaining unknown, a few hypotheses can be formulated. The
results of many tests commonly employed to measure sociability and repetitive
behaviors in mice can be altered by other symptoms known to be observed in
these murine models, such as altered motor coordination, cognitive impairment,
and anxiety, which may lead scientists to overestimate the effect of certain
treatments on social behavior. Moreover, poor translatability may also be ascribed to the
heterogeneity in symptoms and genetic backgrounds found in ASD human patients
which, conversely, is far more limited in these mice strains. Ultimately, other
possible confounding factors such as interactions with concurrent medications,
socio-economic elements, patient lifestyle, or concomitant diseases are
significantly more frequent and variable in the human population. Poor
translatability may be potentially alleviated by precision medicine approaches
in clinical practice and by preclinical testing of single treatments in a
variety of ASD murine models. Ultimately, the present literature shows that,
despite the limited clinical translational success, murine models can be a valuable tool for testing a
variety of treatments in ASD research.

Figure 2. Schematic representation of key
elements of the mTOR pathway and of therapeutic interventions considered in
murine models for ASD.
Abbreviations: PIP2: phosphatidylinositol 4,5-bisphosphate PIP3:
phosphatidylinositol 3,4,5-bisphosphate PI3K: phosphatidylinositol 3-kinase;
PTEN: phosphatase and tensin homolog; Akt: protein kinase B; TSC1: tuberous
sclerosis 1; TSC2: tuberous sclerosis 2; AMPK: AMP-activated protein kinase;
mTOR: mammalian target of rapamycin; mTORC1: mTOR complex 1; mTORC2: mTOR
complex 2; S6K: Ribosomal protein S6 kinase beta-1; eIF4E: eukaryotic
Initiation Factor 4E; ULK complex: Unc-51-like kinase 1 complex; PKCa: protein
kinase C alpha; P: phosphate group
You can see all the amino acids that have been trialed to modify mTOR (taurine, lysine, histidine and threonine) plus metformin and the potent rapamycin.
Also
mentioned is the WHEN in what I call the what, when and where in autism
treatment. This is the idea of treatment windows, when a specific therapy can
potentially be beneficial.
This very
concept was discussed in a recent paper on Rett syndrome.
Protein
Loss Triggers Molecular Changes Linked to Rett Syndrome
Key Facts
·
Early Gene Changes: Loss of MeCP2 leads to immediate gene expression dysregulation,
affecting hundreds of genes.
·
Neuronal Impact: Dysregulated genes are linked to neuronal function, causing
downstream circuit-level deficits.
·
Therapeutic Window: The
study reveals a time frame between molecular changes and neurological symptoms,
enabling early intervention opportunities.
Another
transcription factor (TCF) that causes autism
There is a
lot in this blog about TCF4 (transcription factor 4). Loss of this gene leads
to Pitt Hopkins syndrome. Disruption of the gene is associated with schizophrenia
and intellectual disability.
Mutations in
TCF20 lead to a kind of autism plus intellectual disability called TCF20-Related
Neurodevelopmental Disorder. Like Pitt Hopkins, this is a rare disorder, but
milder misexpression of the gene is likely much more common. In the recent
paper below we see which are the downstream effector genes.
Our old
friends the sub-units of GABAa receptors are there. In this case it is GABRA1
and GABRA5 that are reduced.
Both GABRA1
and GABRA5 play essential but distinct roles in regulating neuronal inhibition.
GABRA1 primarily contributes to synaptic inhibition and is critical in seizure
and anxiety regulation, while GABRA5 is involved in tonic inhibition and
cognitive processes.
Malfunctions
in GABRA1 and GABRA5 can lead to autism, anxiety, schizophrenia, intellectual
disability, epilepsy etc
Regulation of Dendrite and Dendritic Spine Formation by TCF20
Mutations in the Transcription Factor 20 (TCF20) have been
identified in patients with autism spectrum disorders (ASDs), intellectual
disabilities (IDs), and other neurological issues. Recently, a new syndrome
called TCF20-associated neurodevelopmental disorders (TAND) has been described,
with specific clinical features. While TCF20's role in the neurogenesis of
mouse embryos has been reported, little is known about its molecular function
in neurons. In this study, we demonstrate that TCF20 is expressed in all
analyzed brain regions in mice, and its expression increases during brain
development but decreases in muscle tissue. Our findings suggest that TCF20
plays a central role in dendritic arborization and dendritic spine formation
processes. RNA sequencing analysis revealed a downregulation of pre- and
postsynaptic pathways in TCF20 knockdown neurons. We also found decreased
levels of GABRA1,
BDNF, PSD-95, and c-Fos in total homogenates and in synaptosomal preparations
of knockdown TCF20 rat cortical cultures. Furthermore, synaptosomal
preparations of knockdown TCF20 rat cortical cultures showed significant
downregulation of GluN2B and GABRA5,
while GluA2 was significantly upregulated. Overall, our data suggest that TCF20
plays an essential role in neuronal development and function by modulating the
expression of proteins involved in dendrite and synapse formation and function.

Based on these results, we analyzed the expression of
neuronal proteins in TCF20-deficient neurons and found decreased levels of GABRA1, BDNF, PSD-95,
and c-Fos in total homogenates (Figure 5)
and in synaptosomal preparations (Figure 5)
of shTCF20 rat cortical cultures. Additionally, GluN2B and GABRA5 were significantly
downregulated, and GluA2 was significantly upregulated in synaptosomal
preparations of shTCF20 rat cortical cultures (Figure 5).
On the
subject of GABA type A receptor, we have a very recent paper from Poland that
delves into this subject in great detail.
Molecular mechanisms of the GABA type A receptor function
The GABA type A receptor (GABAAR) belongs to the
family of pentameric ligand-gated ion channels and plays a key role in
inhibition in adult mammalian brains. Dysfunction of this macromolecule may lead to epilepsy,
anxiety disorders, autism, depression, and schizophrenia.
And
finally …
Dr Frye has
published a study that assessed the effect of his friend Dr Boles’
mitochondrial cocktail.
I did meet
Dr Boles a while back at a conference in London. He came with his wife and a
stock of NeuroNeeds products for sale, including SpectrumNeeds which was the
subject of today’s paper. He was telling me all about the great food just
across the border in Mexico and how he learnt Spanish.
A Mitochondrial Supplement Improves Function and
Mitochondrial Activity in Autism: A double-blind placebo-controlled cross-over
trial
Autism spectrum disorder (ASD) is associated with
mitochondrial dysfunction but studies demonstrating the efficacy of treatments
are scarce. We sought to determine whether a mitochondrial-targeted dietary
supplement designed for children with ASD improved mitochondrial function and
ASD symptomatology using a double-blind placebo-controlled cross-over design.
Sixteen children [Mean Age 9y 4m; 88% male] with non-syndromic ASD and
mitochondrial enzyme abnormalities, as measured by MitoSwab, received
weight-adjusted SpectrumNeeds and QNeeds and placebos matched on taste, texture and
appearance during two separate 12-week blocks. Which product received first was
randomized. The treatment significantly normalized citrate synthase and complex
IV activity as measured by the MitoSwab. Mitochondrial respiration of
peripheral blood mononuclear cell respiration, as measured by the Seahorse
XFe96 with the mitochondrial oxidative
stress test, became more resilient to oxidative stress after the treatment,
particularly in children with poor neurodevelopment. The mitochondrial
supplement demonstrated significant improvement in standardized parent-rated
scales in neurodevelopment, social withdrawal, hyperactivity and caregiver
strain with large effect sizes (Cohen’s d’ = 0.77-1.25), while changes measured
by the clinical and psychometric instruments were not significantly different.
Adverse effects were minimal. This small study on children with ASD and mitochondrial abnormalities
demonstrates that a simple, well-tolerated mitochondrial-targeted dietary
supplement can improve mitochondrial physiology, ASD symptoms and caregiver
wellbeing. Further larger controlled studies need to verify and extend
these findings. These findings are significant as children with ASD have few
other effective treatments.
Conclusion
Plus ça
change, plus c'est la même chose.
The more
things change, the more they stay the same.
There isn’t
much new that we don’t already know. This is probably good news.
I think for Dr Boles and our Spanish speaking readers you would say "Cuanto más cambian las cosas, más siguen igual." Correct me if I am wrong.