Donald Trump recently reignited debate
about Tylenol (paracetamol/acetaminophen) in pregnancy. His comments drew
attention to research linking prenatal use to higher rates of autism and ADHD.
A large review of 46 studies,
including work from Harvard, found consistent associations between paracetamol
in pregnancy and neurodevelopmental risks. The FDA now advises caution: use the
lowest dose for the shortest time.
Researchers
reviewing 46 studies found evidence linking prenatal acetaminophen (Tylenol)
exposure with higher risks of autism and ADHD. The FDA has since urged caution,
echoing scientists’ advice that the drug be used only at the lowest effective
dose and shortest duration. While important for managing fever and pain in
pregnancy, prolonged use may pose risks to fetal development. Experts stress
careful medical oversight and further investigation.
Why the concern?
Paracetamol depletes glutathione (GSH),
the body’s main antioxidant.
This raises oxidative stress in both
mother and fetus.
The fetus has weak antioxidant defences,
so damage may occur during critical brain development.
But here is the dilemma: the fever,
pain, or inflammation that drives a mother to take paracetamol is itself risky.
We have long known from maternal immune activation models that fever and
cytokine surges in pregnancy can disturb fetal brain development and cause
autism or schizophrenia. There is also evidence linking maternal immune
activation to ADHD in the offspring.
So, what is the solution? Pair
paracetamol with NAC.
Why NAC?
NAC (N-acetylcysteine) is a precursor to
glutathione.
It’s used worldwide in emergency rooms to
save lives after paracetamol/ acetaminophen overdose.
In pregnancy, NAC has been shown to reduce
miscarriage risk by 50%,
Increased pregnancy continuation: Women
receiving NAC and folic acid were 2.9 times more likely to continue
their pregnancies beyond 20 weeks compared to those receiving folic acid
alone
Higher
take-home baby rate: The NAC group had a 1.98 times higher rate of
delivering a live baby.
These findings suggest that NAC, an
antioxidant, may help mitigate oxidative stress, a factor implicated in
pregnancy loss.
A combined Paracetamol/acetaminophen +
NAC pill would:
Prevent liver toxicity,
Buffer oxidative stress in the fetus,
Eliminate the overdose suicide risk that
haunts current paracetamol use.
So far, no company has produced it.
Perhaps the “rotten egg” smell of NAC is a barrier—but solid sustained-release
tablets avoid this.
Why Paracetamol/acetaminophen
use is problematic in under 5s
Paracetamol depletes glutathione
(GSH), the body’s primary antioxidant, increasing oxidative stress. A fetus
with some genetic predispositions might already be in a state of oxidative
stress, as might the mother
Paracetamol is mainly metabolized in
the liver. A small fraction is metabolized into NAPQI — a reactive toxic
metabolite. Glutathione (GSH) neutralizes NAPQI by forming a harmless
conjugate.
If GSH stores are low (or paracetamol
is taken in high doses), NAPQI accumulates, causing liver toxicity and GSH is
exhausted raising oxidative stress.
Acute oxidative stress can be very
damaging to developing brains. The risk after 5 years old fades away, other
than in those who have already exhibited a profound metabolic/mitochondrial
condition.
Why
Oxidative Stress Rises in Pregnancy
Placental
development: Early pregnancy is low-oxygen; as blood flow increases, oxygen
surges and generates reactive oxygen species (ROS).
High
metabolic demand: The mother and placenta require much more energy, leading to
increased mitochondrial ROS.
Immune
adaptations: Pregnancy involves a shift in maternal immunity, with inflammatory
cytokines contributing to oxidative stress.
Fetal
growth: Rapid cell division and organ development naturally produce oxidative
byproducts, while the fetus’s antioxidant defenses are immature.
Limited
antioxidant reserves: Maternal antioxidants (glutathione, vitamins C & E,
enzymes) are partly depleted as pregnancy progresses.
Compounding
Risk Factors
Polycystic
Ovary Syndrome (PCOS): Associated with high androgens, insulin resistance, and
chronic inflammation. These increase oxidative stress and are linked to higher
autism risk in offspring.
Gestational
Diabetes: Maternal hyperglycemia and insulin resistance increase ROS, damage
the placenta, and expose the fetus to oxidative and metabolic stress.
Other
amplifiers: Obesity, infection, fever, or poor nutrition further elevate
oxidative stress.
How
Oxidative Stress Affects the Fetus
Neurodevelopmental
disruption: ROS can damage neural stem cells, impair migration, and disturb
synapse formation.
Epigenetic
reprogramming: Oxidative stress alters DNA methylation and gene expression,
shaping long-term brain function.
Immune
activation: Inflammatory cytokines cross the placenta and disturb fetal brain
development.
Mitochondrial
dysfunction: ROS damage fetal mitochondria, reducing energy for developing
neurons.
Neurotransmitter
imbalance: Antioxidant depletion disrupts glutamate/GABA balance and monoamine
systems.
Consequences
for the Unborn Child
Most
pregnancies manage oxidative stress without harm, thanks to maternal–fetal
antioxidant defences.
When
oxidative stress overwhelms these defences—especially in mothers with PCOS,
GDM, or infections—the risk of complications rises:
Preterm
birth, growth restriction, or preeclampsia
Higher
vulnerability to neurodevelopmental disorders, including autism spectrum
disorder (ASD) and ADHD.
Genetic
predispositions in antioxidant or mitochondrial pathways may make some fetuses
especially sensitive to these oxidative challenges.
Pregnancy
naturally involves a controlled increase in oxidative stress, but when combined
with maternal conditions like PCOS, gestational diabetes, or acute infections,
the oxidative burden can exceed protective capacity. This imbalance may impair
placental function and fetal brain development, increasing the risk of adverse
outcomes, including autism.
Pregnancy:
Choosing safer options for pain and fever
Paracetamol → Remains the best option if pain relief
is absolutely needed, but should be
paired with NAC.
NSAIDs (ibuprofen, mefenamic acid) → Unsafe in later pregnancy due to fetal
kidney damage and premature closure of the ductus arteriosus. Premature
closure of the ductus arteriosus is a serious condition that occurs when
the fetal blood vessel connecting the pulmonary artery to the aorta closes
before birth. Do not use NSAIDs!
NAC supplementation → Low-cost, safe, and evidence-backed
for reducing oxidative stress.
Infancy and Early
Childhood
Paracetamol
Licensed from birth.
Effective for pain and fever, but still
depletes glutathione.
In at-risk infants (metabolic or
mitochondrial issues), consider pairing with NAC.
NSAIDs (ibuprofen, Ponstan)
Suitable from 3–6 months (depending on
guidelines).
Do not deplete glutathione, making them
safer for oxidative stress.
Hydration matters to protect kidneys.
Vaccinations,
Fever, and Oxidative Stress
Vaccines work by briefly activating
the immune system. This triggers a short burst of oxidative stress—far smaller
than that caused by actual infections.
Healthy children clear this easily.
At-risk children (mitochondrial disease,
metabolic errors, weak antioxidant systems) may struggle, leading to
fatigue, regression-like symptoms, or metabolic instability.
Medication
choices around vaccines
NSAIDs → Good for post-vaccine fever. Avoid routine pre-dosing to
prevent dampening immunity, unless the child is in the at-risk group.
Paracetamol → Pre-vaccine dosing can reduce antibody
production and reduce GSH. Post vaccine should be paired with NAC.
Montelukast → Anti-inflammatory, theoretically
helpful in at-risk children, but not tested in trials, but is used at
metabolic/mitochondrial clinics treating children.
NAC → Biologically plausible support for antioxidant status,
though not studied formally in this setting.
Mainstream pediatrics avoids routine
prophylactic anti-inflammatories, but some specialists (e.g., Dr. Kelley, Johns
Hopkins) do use them selectively in fragile children. Using paracetamol without
NAC is a bad idea.
Metabolic
Decompensation: The Hidden Risk
Some children with mitochondrial or
metabolic disorders cannot handle stress from fever or illness. This can
trigger:
Energy failure (low ATP)
Accumulation of toxic metabolites
(lactate, ammonia)
Seizures or regression
In developing brains, these crises can
leave permanent autism-like features and/or intellectual disability. These symptoms are secondary to brain injury. Prevention is
key:
Hydration, glucose support
Early fever control
Antioxidant support (NAC, vitamins C
& E)
Key Takeaways
Pregnancy: If pain relief is needed, paracetamol +
NAC is safer than paracetamol alone. Avoid NSAIDs.
Infancy: Paracetamol is widely used, but NSAIDs are
safer from 3 months onward when oxidative stress is a concern.
Vaccination: Vaccines prevent far greater oxidative
stress from infections. At-risk children may benefit from antioxidant or
anti-inflammatory support, but this should be individualized.
Metabolic decompensation: Recognize and prevent crises in
vulnerable children—this reduces risk of secondary neurodevelopmental
injury.
Conclusion
Paracetamol has been trusted for
decades, but its link with oxidative stress and neurodevelopmental risk is
becoming harder to ignore. A Paracetamol + NAC pill makes both medical and
common sense—safer for mothers, safer for children, and suicide-proof.
Until then, thoughtful use of NAC,
NSAIDs, and tailored fever management could make a real difference in
protecting brain development from conception through early childhood.
My original draft
post was rather long, so here is the “optional” part 2, for any avid readers
out there!
Part 2: Vaccines,
Oxidative Stress, and Children at Risk
Why some kids may react differently —
and what parents and clinicians can do
Vaccines are one of the greatest
public health achievements, protecting children from infections that would
otherwise cause significant illness, hospitalization, or death. But for
children with mitochondrial disorders, metabolic diseases, or weak antioxidant
systems, even routine vaccination can temporarily stress the body.
How Vaccines
Trigger Oxidative Stress
Vaccination works by activating the
immune system, prompting cytokine release, mild inflammation, and reactive
oxygen species (ROS) production.
In healthy children, this burst is short-lived.
Antioxidant defences like glutathione, superoxide dismutase, and dietary
vitamins C & E neutralize ROS quickly.
In children with mitochondrial or
metabolic vulnerabilities, baseline ROS is already elevated, and
antioxidant defences may be limited. A small extra load from vaccination
can feel disproportionately stressful.
Why Some Children
React Differently
Mitochondrial
Disorders
Mitochondria produce ATP and ROS.
Dysfunction means higher baseline oxidative stress and lower energy
reserves.
A vaccine-induced oxidative spike can
linger longer, leading to fatigue, metabolic stress, or regression-like
symptoms.
Metabolic
Disorders
Children with amino acid, fatty acid, or
urea cycle defects have limited antioxidant capacity.
ROS accumulation may overwhelm defences,
causing secondary mitochondrial stress or toxic metabolite build-up.
Genetic Variants
Some children carry variants that reduce
glutathione production or antioxidant enzyme activity (e.g., GSTM1/GSTT1
deletions, MTHFR variants, impaired SOD/catalase).
Even minor oxidative challenges can
temporarily disturb synapse formation, neurotransmitter balance, and
myelination in the developing brain.
Medications
Around Vaccination
NSAIDs
Symptom-driven use for fever or pain post-vaccine is
generally safe.
Routine prophylactic use is usually avoided because it can reduce
antibody responses, but specialists consider this is likely minimal
Paracetamol
Pre-vaccine dosing can modestly blunt
antibody formation in some vaccines and is unwise because it reduces GSH just
before it will be needed most.
Post-vaccine, symptom-driven use is often
considered safe, but is unwise due to the ruction in GSH when needed most
High-risk children should always avoid paracetamol
unless paired with NAC to protect glutathione and limit oxidative stress.
NAC
(N-acetylcysteine)
Biologically plausible support for
antioxidant status in at-risk children.
Safely used during pregnancy and by babies
Not yet studied in formal vaccine trials,
but safe and used in clinical settings for other oxidative stress
conditions.
Montelukast
Anti-inflammatory, may reduce oxidative
stress, but not proven for vaccine prophylaxis.
Used by children at vaccination time when
already prescribed it for asthma/allergic disease.
Managing
Vaccination in At-Risk Children
1.Ensure good
hydration, feeding, and metabolic stability before vaccination.
2.Monitor closely
for post-vaccine fever, fatigue, or regression-like symptoms.
3.Have supportive
measures ready:
oNAC or other antioxidant support
oSymptom-driven NSAIDs
oAvoid paracetamol unless paired with NAC
oQuick access to a specialist if metabolic
stress occurs
Takeaways for
Parents and Clinicians
Vaccines do cause a small, transient
oxidative stress, but it is far less than the oxidative burden from
infections.
Children with mitochondrial or metabolic
vulnerabilities may need extra care before and after vaccination.
NAC, hydration, symptom-driven NSAIDs,
and careful monitoring can reduce risk without compromising immunity.
Always coordinate with a metabolic or
mitochondrial specialist when planning vaccination for high-risk children.
By understanding oxidative stress,
supporting antioxidant defences, and tailoring care, parents and clinicians can
protect both immunity and neurodevelopment.
Since most parents, in reality, do not
have access a mitochondrial specialist it pays to do your homework in advance. All
the needed resources are in plain view.
You do wonder why nobody makes a
combined Paracetamol/acetaminophen + NAC pill.
Such a pill is perfect for pregnant
women.
Nobody would be able to commit suicide
with this pill. This pill blocks the harmful effect on the liver that
ultimately can lead to death.
NAC does smell of rotten eggs. One
argument against such a pill is that it would stink and pregnant women are
often feeling nausea. If the pill is solid (like NAC Sustain) there is no smell
of rotten eggs. So you certainly can have a combined pill.
Personally, I would ban all liquid
formulations of Paracetamol, other than for babies under 3 months. Many
countries have long used exclusively Ibuprofen or Ponstan for children. Once a
child is 5 years old the potential for paracetamol to do neurodevelopmental
harm should have faded.
You can give babies NAC, it is sold in
a liquid form for this purpose. NAC acts as a mucolytic, meaning it thins mucus
in the airways.
How common is Metabolic Decompensation
as a cause of severe autism? We know it exists, but I think we will never know
how common it is. Hannah Poling is the best-known example. Evidence of an inconvenient truth.
Several times recently the subject of pH
(acidity/alkalinity) has come up in my discussions with fellow parents. It is
not a subject that gets attention in the autism research, so here is my
contribution to the subject.
If your child has a blood gas test a day after a seizure
and it shows high pH, this is not the result of the seizure, but a likely cause
of it. Treat the elevated pH to avoid another seizure and likely also improve
autism symptoms. It may be respiratory alkalosis which is caused by
hyperventilation, due to stress, anxiety etc.
The regulation of pH inside and outside brain cells is a
delicate balance with far-reaching consequences. Subtle shifts toward acidity
(low pH) or alkalinity (high pH) can alter calcium handling, neuronal
excitability, and ultimately drive seizures, fatigue, or even inflammation.
This interplay becomes especially important in conditions like autism,
epilepsy, and mitochondrial disease, where metabolism and excitability are
already dysregulated.
You can
measure blood pH quite easily, but within cells different parts are maintained
at very different levels of pH and this you will not be able to measure. Blood
pH is about 7.4 (slightly alkaline) the gogli apparatus is slightly acidic,
whereas the lysome is very acidic (pH about 4.7).
pH and Calcium Balance
Calcium (Ca²⁺) is central to neuronal excitability. Small
pH changes shift the balance between intracellular and extracellular calcium:
Alkalosis
(↑ pH): reduces extracellular calcium
availability, destabilizes neuronal membranes, and promotes
hyperexcitability and seizures.
Acidosis
(↓ pH): activates acid-sensing ion channels
(ASICs), leading to Na⁺ and Ca²⁺ influx and further excitability.
Thus, both too much acidity and too much alkalinity can
increase seizure risk, though through different mechanisms.
Your body should tightly regulate its pH. You can only
nudge it slightly up or down. Even small changes can be worthwhile in some
cases.
When extracellular (ionized) calcium enters neurons through
ion channels it can drive inflammation, excitability, and mitochondrial stress.
Calcium needs to be in the right place and in autism it often is not, for a
wide variety of reasons.
Mitochondrial Disease and pH
Mitochondria produce ATP through oxidative
phosphorylation. Dysfunction can impair this process and lead to accumulation
of lactate (acidosis) or, paradoxically, reduced proton flux (relative
alkalosis). In autism, mitochondrial dysfunction is reported in a significant
minority (10–20%) of cases.
Hyperventilation and Alkalosis
Another often-overlooked contributor is hyperventilation.
By blowing off CO₂, blood pH rises (respiratory alkalosis), leading to reduced
ionized calcium and increased excitability. This is the reason why
hyperventilation is used during EEG testing to provoke seizures in susceptible
individuals.
Therapeutic Approaches - Adjusting pH
Several therapies—old and new—intentionally alter pH
balance:
Applications:
Beneficial in some cases of autism and epilepsy, as reported in blogs and
small studies.
Note:
Raises extracellular pH, which can reduce ASIC activation but may increase
excitability if alkalosis is excessive.
Beyond
buffering, sodium bicarbonate (baking soda) has been shown to trigger
anti-inflammatory vagal nerve pathways. This effect may be especially
valuable in neuroinflammation seen in autism and epilepsy.
2. Acetazolamide (Diamox)
Mechanism:
A carbonic anhydrase inhibitor that causes bicarbonate loss in the urine,
lowering blood pH (mild acidosis).
Neurological
Effects: Used as an anti-seizure drug,
especially in patients with channelopathies and mitochondrial disorders.
In
Climbers: At altitude, the body tends toward
alkalosis due to hyperventilation (blowing off CO₂). Diamox counteracts
this by inducing a mild metabolic acidosis, which stimulates ventilation,
improves oxygenation, and prevents acute mountain sickness (AMS). This is
why mountaineers often describe Diamox as helping them “breathe at night”
in the mountains.
3. Zonisamide
Mechanism:
Another carbonic anhydrase inhibitor, with both anti-seizure and mild
acidifying effects.
Benefit:
Often used in refractory epilepsy.
ASICs: Acid-Sensing Ion Channels
ASICs are neuronal ion channels directly gated by protons
(H⁺). Their activity is pH-sensitive:
High
pH (alkalosis): Reduces ASIC activity, but destabilizes
calcium balance in other ways.
ASIC Mutations
Mutations in ASIC genes can alter how neurons respond to
pH shifts. In theory, modest therapeutic modulation of pH (via bicarbonate or
acetazolamide) could normalize excitability in patients with ASIC mutations.
ASIC2 is seen as a likely autism gene. There is even an
ASIC2 loss of function mouse model.
Give that mouse Diamox!
Meldonium vs Diamox — Two Paths to Survive
Altitude
During the Soviet–Afghan war in the 1980s, Russian troops
were supplied with meldonium, while American soldiers and climbers commonly
used acetazolamide (Diamox) for altitude adaptation. The Mujahideen and Taliban
need neither, because they have already adapted to the low oxygen level.
Meldonium is a Latvian drug made famous by the tennis
star Maria Sharapova who was found to be taking it for many years. It is a very
plausible therapy to boost the performance of your mitochondria and so might
help some autism. I know some people have tried it.
Although both drugs were used to improve performance
under hypoxia, they worked in almost opposite ways:
At high altitude without Diamox
You
hyperventilate to compensate for low oxygen.
Hyperventilation
↓ CO₂ in the blood → respiratory alkalosis (↑ pH).
The
alkalosis suppresses breathing (since the brainstem senses “too alkaline,
slow down”), which is why people breathe shallowly at night, leading to
periodic apnea and low oxygen saturation.
With Diamox
Diamox
blocks carbonic anhydrase in the kidneys → you excrete more bicarbonate
(HCO₃⁻).
This
causes a metabolic acidosis (↓ pH).
The
brainstem now senses blood as “acidic,” which stimulates breathing.
So,
you hyperventilate more, but this time it’s sustained, because the
metabolic acidosis counterbalances the respiratory alkalosis.
With
Diamox: hyperventilation + mild metabolic acidosis → balanced pH →
sustained ventilation and better oxygen delivery.
So, the key is that Diamox shifts the body’s set point
for breathing, letting climbers breathe harder without shutting down from
alkalosis.
The Irony
Meldonium
- indirect alkalinization to reduce stress on cells.
Diamox
- deliberate acidification to stimulate respiration.
Both
approaches improved function under low oxygen, but they pulled physiology
in opposite pH directions.
Another irony is that not only is Meldonium banned in
sport, but so is Diamox. Diamox is banned because it is a diuretic and so can
be used to mask the use of other drugs.
Now an example showing the impact of when pH control
within the cell is dysfunctional.
GPR89A - the Golgi “Post Office” gene that keeps
our cells running
When we think about genes involved in neurodevelopment,
most people imagine genes that directly control brain signaling or neuron
growth. But some genes quietly do their work behind the scenes, keeping our
cellular “factories” running smoothly. One such gene is GPR89A, a gene that
plays a critical role in regulating Golgi pH — and when it malfunctions, the
consequences can ripple all the way to autism and intellectual disability (ID).
The Golgi Apparatus: The Cell’s Post Office
To understand GPR89A, it helps to picture the cell as a
factory:
The
endoplasmic reticulum (ER) is the protein factory, producing raw products
— proteins and lipids.
The
Golgi apparatus is the post office, modifying, sorting, and shipping these
products to their proper destinations.
Just like a real post office, the Golgi must maintain
precise conditions to function. One key condition is pH, the acidity inside the
Golgi.
GPR89A: The Golgi’s pH Regulator
Inside the Golgi, acidity is carefully balanced by:
V-ATPase
pumps, which push protons (H⁺) in to acidify the lumen.
Anion
channels like GPR89A, which allow negative ions (Cl⁻, HCO₃⁻) to flow in,
neutralizing the electrical charge and keeping the pH just right.
Think of GPR89A as the electrical wiring in the post
office: without it, the machinery may be overloaded or misfiring, even if the
raw materials (proteins) are fine.
When Golgi pH Goes Wrong
If GPR89A is mutated:
1.The Golgi cannot maintain its normal acidic
environment.
2.Enzymes inside the Golgi — responsible for
adding sugar chains to proteins (glycosylation) — cannot work properly.
3.Proteins may become misfolded, unstable, or
misrouted. Some may be sent to the wrong destination, while others are
degraded.
This is akin to a post office with wrong sorting labels:
packages (proteins) either go to the wrong address or get lost entirely.
Consequences for the Brain
Proteins are not just passive molecules; many are
receptors, ion channels, adhesion molecules, or signaling factors essential for
brain development. Mis-glycosylated proteins can lead to:
Disrupted
cell signaling
Impaired
synapse formation
Altered
neuronal communication
The end result can manifest as intellectual disability,
autism spectrum disorders, or other neurodevelopmental conditions, because
neurons are particularly sensitive to these trafficking and signaling errors.
Could Modulating Blood pH Help?
Since Golgi pH depends partly on cellular bicarbonate and
proton balance, I have speculated whether small changes in blood pH could
indirectly influence Golgi function:
Sodium/potassium
bicarbonate
Increases
extracellular bicarbonate and buffering capacity.
Might
slightly influence intracellular pH and indirectly affect Golgi pH.
Acetazolamide
(Diamox):
Inhibits
carbonic anhydrase, altering H⁺ and bicarbonate handling in cells.
Could
theoretically shift intracellular pH including Golgi pH
Systemic pH changes are
heavily buffered by cells, so the impact on Golgi pH is likely to be modest at
best.
Neither approach has been validated
in human studies for improving glycosylation. Currently, there is no
established therapy for GPR89A mutations.
Because there is no treatment, a reasonable option is a
brief, carefully monitored trial.
Try
both interventions (bicarbonate then Diamox) for a short period.
Observe
for any measurable benefit in function or clinical outcomes.
If
there is no benefit, stop the trial — nothing is lost.
This approach allows cautious exploration without
committing to a long-term therapy that may be ineffective.
The Bigger Picture
Even though GPR89A itself is not classified as a major
autism or ID gene, its role in Golgi ion balance and glycosylation highlights
how basic cellular “infrastructure” genes can profoundly affect brain
development.
GPR89A reminds us that neurodevelopment is not only about
neurons or synapses but also about the tiny cellular logistics systems that
make them function. Maintaining Golgi pH is not glamorous, but without it, the
entire cellular supply chain collapses, illustrating a pathway from a single
gene mutation → cellular dysfunction → potential autism and ID outcomes.
Manipulating blood pH with bicarbonate or Diamox is an
intriguing idea, will it provide a benefit?
Conclusion
pH regulation is a critical but underappreciated factor
in autism, epilepsy, and mitochondrial disease. Subtle shifts in acidity or
alkalinity affect calcium handling, ASIC activation, and neuronal excitability.
Therapeutic strategies—from bicarbonates to carbonic anhydrase inhibitors—show
that intentionally modulating pH can be both protective and symptomatic.
Understanding the individual’s underlying metabolic and genetic context (eg
mitochondrial function, ASIC mutations etc) will help determine whether a person
might benefit more from raising or lowering pH.
For people with inflammatory conditions like some autism,
or even MS, the simple idea of using baking soda to activate the vagus nerve is
interesting.
We saw this in an old post and the researchers even went
as far as severing the vagus nerve to prove it.
Potassium bicarbonate is a better long-term choice than
sodium bicarbonate (baking soda) since most people lack potassium and have too
much sodium already. It is cheap and OTC.
Diamox, Meldonium and Zonisamide are all used long term.
If you mention any of this to your doctor, expect a blank
look coming back! Unless he/she is a mountaineer or perhaps a Latvian sports
doctor!
Today’s post
should be of wide interest because it concerns the potential benefit from the
OTC supplement taurine. There is a section at the end answering a query about
mutations in the KAT6A gene.
Taurine is
an amino acid and it is found in abundance in both mother’s milk and formula
milk.It has long been used as a supplement by some
people with autism. It is finally going to be the subject of a clinical trial in
autism and not surprisingly that will be in China - nowadays home to much
autism research.
Taurine is
also a key ingredient in energy drinks like Red Bull.
In a study
of children with autism a third had low levels of taurine. Since taurine has
anti-oxidant activity, children with ASD with low taurine concentrations were
then examined for abnormal mitochondrial function. That study suggests that taurine
may be a valid biomarker in a subgroup of ASD.
Taurine has
several potential benefits to those with autism and it is already used to treat
a wide variety of other conditions, some of which are relevant to autism. One
example is its use in Japan to improve mitochondrial function in a conditional
called MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis and
stroke-like episodes).
The effects
that are suggested to relate to some types of autism include:-
·Activating GABAA
receptors, in the short term
·Down regulating
GABAA receptors, after long term use
·Reduce NMDA mediated activation of calcium
channels
·Protective effect on mitochondria and
upregulating Complex 1
·Improving
the quality of the gut microbiota
If you have
a pet you may know that taurine is widely given to cats and dogs. All cat food
has taurine added and some breeds of dog need supplementation.
Taurine is
crucial for several bodily functions in pets, including:
Heart Health: Taurine helps regulate heart rhythm and improves heart
muscle function. It can help prevent a type of heart disease called dilated
cardiomyopathy (DCM) in both cats and dogs.
Vision: Taurine plays a role in maintaining healthy vision and can prevent
retinal degeneration, a serious eye disease.
Immune System Function: Taurine may help boost the immune system and fight off
infections.
From China
we have the following recent study showing a benefit in the BTBR model of
autism:
Effective treatment of patients
with autism spectrum disorder (ASD) is still absent so far. Taurine exhibits
therapeutic effects towards the autism-like behaviour in ASD model animals.
Here, we determined the mechanism of taurine effect on hippocampal neurogenesis
in genetically inbred BTBR T+tf/J (BTBR)
mice, a proposed model of ASD. In this ASD mouse model, we explored the effect
of oral taurine supplementation on ASD-like behaviours in an open field test,
elevated plus maze, marble burying test, self-grooming test, and three-chamber
test. The mice were divided into four groups of normal controls (WT) and models
(BTBR), who did or did not receive 6-week taurine supplementation in water (WT,
WT+ Taurine, BTBR, and BTBR+Taurine). Neurogenesis-related effects were
determined by Ki67 immunofluorescence staining. Western blot analysis was
performed to detect the expression of phosphatase and tensin homologue deleted
from chromosome 10 (PTEN)/mTOR/AKT pathway-associated proteins. Our results showed that taurine
improved the autism-like behaviour, increased the proliferation of
hippocampal cells, promoted PTEN expression, and reduced phosphorylation of
mTOR and AKT in hippocampal tissue of the BTBR mice. In conclusion, taurine
reduced the autism-like behaviour in partially inherited autism model mice,
which may be associated with improving the defective neural precursor cell
proliferation and enhancing the PTEN-associated pathway in hippocampal tissue.
A trial in
humans with autism is scheduled in Guizhou, China. In this trial they seem to
believe the benefit may come from modification to the gut microbiota.
In the treatment of autism spectrum disorders (ASD),
medication is only an adjunct, and the main treatment modalities are education
and behavioral therapy. People with autism incur huge medical and educational
costs, which puts a great financial burden on families. Taurine is one of the
abundant amino acids in tissues and organs, and plays a variety of
physiological and pharmacological functions in nervous, cardiovascular, renal,
endocrine and immune systems. A large number of studies have shown that taurine
can improve cognitive function impairment under various physiological or
pathological conditions through a variety of mechanisms, taurine can increase
the abundance of beneficial bacteria in the intestine, inhibit the growth of
harmful bacteria, and have a positive effect on intestinal homeostasis. This
study intends to analyze the effect of taurine supplementation on ASD, and
explore the possible mechanism by detecting intestinal symptoms, intestinal
flora, markers of oxidative stress and clinical symptoms of ASD.
Taurine granules mixed with corn starch and white sugar, 0.4g
in 1 bag, taken orally. One time dosage: 1 bag each time for 1-2 years old, 3
times a day, 1.5 bags each time for 3-5 years old, 3 times a day, 2 bags each
time for 6-8 years old, 3 times a day, 2.5-3 bags each time for 9-13 years old,
3 to 4 bags each time for children and adults over 14 years old, 3 times a day.
The use of taurine is strictly in accordance with the specifications of Chinese
Pharmacopoeia.
Taurine is a key functional amino acid with many functions in
the nervous system. The effects of taurine on cognitive function have aroused
increasing attention. First, the fluctuations of taurine and its transporters
are associated with cognitive impairments in physiology and pathology. This may
help diagnose and treat cognitive impairment though mechanisms are not fully
uncovered in existing studies. Then, taurine supplements in cognitive impairment of different physiologies,
pathologies and toxicologies have been demonstrated to significantly improve
and restore cognition in most cases. However, elevated taurine level in
cerebrospinal fluid (CSF) by exogenous administration causes cognition
retardations only in physiologically sensitive period between the perinatal to
early postnatal period. In this review, taurine levels are summarized in
different types of cognitive impairments. Subsequently, the effects of taurine
supplements on cognitions in physiology, different pathologies and toxication
of cognitive impairments (e.g. aging, Alzheimer' disease, streptozotocin
(STZ)-induced brain damage, ischemia model, mental disorder, genetic diseases
and cognitive injuries of pharmaceuticals and toxins) are analyzed. These data suggest that taurine
can improve cognition function through multiple potential mechanisms (e.g.
restoring functions of taurine transporters and γ-aminobutyric acid (GABA) A
receptors subunit; mitigating neuroinflammation; up-regulating Nrf2 expression
and antioxidant capacities; activating Akt/CREB/PGC1α pathway, and further
enhancing mitochondria biogenesis, synaptic function and reducing oxidative
stress; increasing neurogenesis and synaptic function by pERK; activating PKA
pathway). However, more mechanisms still need explorations.
Although ER stress
assumes an important role in the cytoprotective actions of taurine in the
central nervous system (CNS), another important mechanism affecting the CNS is
the neuromodulatory activity of taurine. Toxicity in the CNS commonly occurs
when an imbalance develops between excitatory and inhibitory neurotransmitters.
GABA is one of the dominant inhibitory neurotransmitters, therefore, reductions
in either the CNS levels of GABA or the activity of the GABA receptors can
favor neuronal hyperexcitability. Taurine serves as a weak agonist of the GABAA, glycine and
NMDA receptors Therefore, taurine can partially substitute for GABA by
causing inhibition of neuronal excitability. However, the regulation of the
GABAA receptor by taurine is complex. While acute taurine administration activates the
GABAA receptor, chronic taurine feeding promotes the
downregulation of the GABAA receptorand the upregulation of glutamate
decarboxylase, the rate-limiting step in GABA biosynthesis. Therefore, complex
interactions within the GABAeric system, as well as in the glycine and NMDA
receptors, largely define the actions of taurine in the CNS.
Taurine
is one of the most abundant free amino acids especially in excitable tissues,
with wide physiological actions. Chronic supplementation of taurine in drinking water to mice increases
brain excitability mainly through alterations in the inhibitory GABAergic
system. These changes include elevated expression level of glutamic acid
decarboxylase (GAD) and increased levels of GABA. Additionally we reported that GABAA receptors were down
regulated with chronic administration of taurine. Here, we investigated
pharmacologically the functional significance of decreased / or change in
subunit composition of the GABAA receptors by determining the threshold for
picrotoxin-induced seizures. Picrotoxin, an antagonist of GABAA receptors that
blocks the channels while in the open state, binds within the pore of the
channel between the β2 and β3 subunits. These are the same subunits to which
GABA and presumably taurine binds.
Methods
Two-month-old
male FVB/NJ mice were subcutaneously injected with picrotoxin (5 mg kg-1) and
observed for a) latency until seizures began, b) duration of seizures, and c)
frequency of seizures. For taurine treatment, mice were either fed taurine in
drinking water (0.05%) or injected (43 mg/kg) 15 min prior to picrotoxin
injection.
Results
We
found that taurine-fed mice are resistant to picrotoxin-induced seizures when
compared to age-matched controls, as measured by increased latency to seizure,
decreased occurrence of seizures and reduced mortality rate. In the
picrotoxin-treated animals, latency and duration were significantly shorter
than in taurine-treated animas. Injection of taurine 15 min before picrotoxin
significantly delayed seizure onset, as did chronic administration of taurine
in the diet. Further, taurine treatment significantly increased survival rates
compared to the picrotoxin-treated mice.
Conclusions
We
suggest that the elevated threshold for picrotoxin-induced seizures in
taurine-fed mice is due to the reduced binding sites available for picrotoxin
binding due to the reduced expression of the beta subunits of the GABAA
receptor. The delayed effects of picrotoxin after acute taurine injection may
indicate that the two molecules are competing for the same binding site on the
GABAA receptor. Thus, taurine-fed
mice have a functional alteration in the GABAergic system. These include:
increased GAD expression, increased GABA levels, and changes in subunit
composition of the GABAA receptors. Such a finding is relevant in conditions
where agonists of GABAA receptors, such as anesthetics, are administered.
Taurine
as used in Japan to treat MELAS (mitochondrial myopathy, encephalopathy, lactic
acidosis and stroke-like episodes)
This medicine improves mitochondrial dysfunction related to cell
energy production etc., and suppresses stroke-like episodes.
It is usually used for prevention of stroke-like episodes of MELAS
(mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like
episodes).
·Your dosing schedule prescribed by your doctor
is (( to be written by a
healthcare professional))
·In general, take as following dose according to your weight, 3 times a day
after meals. If you weigh less than 15 kg, take 1.02 g (1 g of the active
ingredient) at a time. If your weight ranges 15 kg to less than 25 kg, take
2.04 g (2 g) at a time. If your weight ranges 25 kg to less than 40 kg, take
3.06 g (3 g) at a time. If you weigh 40 kg and more, take 4.08 g (4 g) at a
time. Strictly follow the instructions.
·If you miss a dose, take the missed a dose as soon as possible. However,
if it is almost time for the next dose, skip the missed a dose and continue
your regular dosing schedule. You should never take two doses at one time.
·If you accidentally take more than your prescribed dose, consult with
your doctor or pharmacist.
·Do not stop taking this medicine unless your doctor instructs you to do
so.
Contemporary research has found that people
with autism spectrum disorder (ASD) exhibit aberrant immunological function,
with a shift toward increased cytokine production and unusual cell function.
Microglia and astroglia were found to be significantly activated in
immuno-cytochemical studies, and cytokine analysis revealed that the macrophage
chemoattractant protein-1 (MCP-1), interleukin 6 (IL-6), tumor necrosis factor
α (TNF-α), and transforming growth factor β-1 (TGFB-1), all generated in the
neuroglia, constituted the most predominant cytokines in the brain. Taurine
(2-aminoethanesulfonic acid) is a promising therapeutic molecule able to
increase the activity of antioxidant enzymes and ATPase, which may be
protective against aluminum-induced neurotoxicity. It can also stimulate
neurogenesis, synaptogenesis, and reprogramming of proinflammatory M1
macrophage polarization by decreasing mitophagy (mitochondrial autophagy) and
raising the expression of the markers of the anti-inflammatory and pro-healing
M2 macrophages, such as macrophage mannose receptor (MMR, CD206) and
interleukin 10 (IL-10), while lowering the expression of the M1 inflammatory
factor genes. Taurine also induces autophagy, which is a mechanism that is
impaired in microglia cells and is critically associated with the
pathophysiology of ASD. We hypothesize here that taurine could reprogram the
metabolism of M1 macrophages that are overstimulated in the nervous system of
people suffering from ASD, thereby decreasing the neuroinflammatory process
characterized by autophagy impairment (due to excessive microglia activation),
neuronal death, and improving cognitive functions. Therefore, we suggest that
taurine can serve as an important lead for the development of novel drugs for
ASD treatment.
Autism spectrum disorders (ASD) are a complex
sequelae of neurodevelopmental disorders which manifest in the form of
communication and social deficits. Currently, only two agents, namely
risperidone and aripiprazole have been approved for the treatment of ASD, and
there is a dearth of more drugs for the disorder. The exact pathophysiology of
autism is not understood clearly, but research has implicated multiple pathways
at different points in the neuronal circuitry, suggesting their role in ASD.
Among these, the role played by neuroinflammatory cascades like the NF-KB and
Nrf2 pathways, and the excitotoxic glutamatergic system, are said to have a
bearing on the development of ASD. Similarly, the GPR40 receptor, present in
both the gut and the blood brain barrier, has also been said to be involved in
the disorder. Consequently, molecules which can act by interacting with one or
multiple of these targets might have a potential in the therapy of the
disorder, and for this reason, this study was designed to assess the binding
affinity of taurine, a naturally-occurring amino acid, with these target
molecules. The same was scored against these targets using in-silico docking
studies, with Risperidone and Aripiprazole being used as standard comparators.
Encouraging docking scores were obtained for taurine across all the selected
targets, indicating promising target interaction. But the affinity for targets
actually varied in the order NRF-KEAP > NF-κB > NMDA > Calcium channel
> GPR 40. Given the potential implication of these
targets in the pathogenesis of ASD, the drug might show promising results in
the therapy of the disorder if subjected to further evaluations.
Taurine is a sulfur-containing amino acid which
is not incorporated into protein. However, taurine has various critical
physiological functions including development of the eye and brain,
reproduction, osmoregulation, and immune functions including anti-inflammatory
as well as anti-oxidant activity. The causes of autistic spectrum disorder
(ASD) are not clear but a high heritability implicates an important role for
genetic factors. Reports also implicate oxidative stress and inflammation in
the etiology of ASD. Thus, taurine, a well-known antioxidant and regulator of
inflammation, was investigated here using the sera from both girls and boys
with ASD as well as their siblings and parents. Previous reports regarding
taurine serum concentrations in ASD from various laboratories have been
controversial. To address the potential role of taurine in ASD, we collected
sera from 66 children with ASD (males: 45; females: 21, age 1.5-11.5 years,
average age 5.2 ± 1.6) as well as their unaffected siblings (brothers: 24;
sisters: 32, age 1.5-17 years, average age 7.0 ± 2.0) as controls of the
children with ASD along with parents (fathers: 49; mothers: 54, age 28-45
years). The sera from normal adult controls (males: 47; females: 51, age 28-48
years) were used as controls for the parents. Taurine concentrations in all
sera samples were measured using high performance liquid chromatography (HPLC)
using a phenylisothiocyanate labeling technique. Taurine concentrations from
female and male children with ASD were 123.8 ± 15.2 and 145.8 ± 8.1 μM,
respectively, and those from their unaffected brothers and sisters were 142.6 ±
10.4 and 150.8 ± 8.4 μM, respectively. There was no significant difference in
taurine concentration between autistic children and their unaffected siblings.
Taurine concentrations in children with ASD were also not significantly
different from their parents (mothers: 139.6 ± 7.7 μM, fathers: 147.4 ± 7.5
μM). No significant difference was observed between adult controls and parents
of ASD children (control females: 164.8 ± 4.8 μM, control males: 163.0 ± 7.0
μM). However, 21 out of 66
children with ASD had low taurine concentrations (<106 μM). Since
taurine has anti-oxidant activity, children with ASD with low taurine
concentrations will be examined for abnormal mitochondrial function. Our data
imply that taurine may be a valid biomarker in a subgroup of ASD.
Taurine is a naturally occurring
sulfur-containing amino acid that is found abundantly in excitatory tissues,
such as the heart, brain, retina and skeletal muscles. Taurine was first
isolated in the 1800s, but not much was known about this molecule until the
1990s. In 1985, taurine was first approved as the treatment among heart failure
patients in Japan. Accumulating
studies have shown that taurine supplementation also protects against
pathologies associated with mitochondrial defects, such as aging, mitochondrial
diseases, metabolic syndrome, cancer, cardiovascular diseases and neurological
disorders. In this review, we will provide a general overview on the
mitochondria biology and the consequence of mitochondrial defects in
pathologies. Then, we will discuss the antioxidant action of taurine,
particularly in relation to the maintenance of mitochondria function. We will
also describe several reported studies on the current use of taurine
supplementation in several mitochondria-associated pathologies in humans.
Taurine
is known not as a radical scavenger. Several potential mechanisms by which
taurine exerts its antioxidant activity in maintaining mitochondria health
include: taurine conjugates with uridine on mitochondrial tRNA to form a
5-taurinomethyluridine for proper synthesis of mitochondrial proteins
(mechanism 1), which regulates the stability and functionality of respiratory
chain complexes; taurine reduces superoxide generation by enhancing the
activity of intracellular antioxidants (mechanism 2); taurine prevents calcium
overload and prevents reduction in energy production and the collapse of
mitochondrial membrane potential (mechanism 3); taurine directly scavenges HOCl
to form N-chlorotaurine in inhibiting a pro-inflammatory response (mechanism
4); and taurine inhibits mitochondria-mediated apoptosis by preventing caspase
activation or by restoring the Bax/Bcl-2 ratio and preventing Bax translocation
to the mitochondria to promote apoptosis (mechanism 5).
Taurine
Forms a Complex with Mitochondrial tRNA
Taurine
Reduces Superoxide Generation in the Mitochondria
Taurine therapy, therefore, could potentially
improve mitochondrial health, particularly in mitochondria-targeted
pathologies, such as cardiovascular diseases, metabolic diseases, mitochondrial
diseases and neurological disorders. Whether the protective mechanism on
mitochondria primarily relies on the taurine modification of mitochondrial tRNA
requires further investigation.
Taurine
and the gut microbiota
We now regularly in the
research see that you can make changes in the gut microbiota to treat medical
conditions. I think the most interesting was the discovery that the ketogenic
diet, used for a century to treat epilepsy, actually works via the high fat
diet changing the bacteria that live in your gut; it has nothing at all to do
with ketones. UCLA are developing a bacteria product that will mimic the effect
of this diet.
We should not be surprised
to see that one mode of action put forward for Taurine is changes it makes in
the gut microbiota.It is this very
mechanism that the Chinese researchers think is relevant to its benefit in
autism.
The paper below is not
about autism, but it is about Taurine’s effect on the gut microbiota.
Taurine,
an abundant free amino acid, plays multiple roles in the body, including bile
acid conjugation, osmoregulation, oxidative stress, and inflammation
prevention. Although the relationship between taurine and the gut has been
briefly described, the effects of taurine on the reconstitution of intestinal
flora homeostasis under conditions of gut dysbiosis and underlying mechanisms
remain unclear. This study examined the effects of taurine on the intestinal
flora and homeostasis of healthy mice and mice with dysbiosis caused by
antibiotic treatment and pathogenic bacterial infections. The results showed that taurine
supplementation could significantly regulate intestinal microflora, alter fecal
bile acid composition, reverse the decrease in Lactobacillus abundance, boost
intestinal immunity in response to antibiotic exposure, resist colonization by
Citrobacter rodentium, and enhance the diversity of flora during infection.
Our results indicate that taurine has the potential to shape the gut microbiota
of mice and positively affect the restoration of intestinal homeostasis. Thus,
taurine can be utilized as a targeted regulator to re-establish a normal
microenvironment and to treat or prevent gut dysbiosis.
Conclusion
Your body
can synthesize taurine from other amino acids, particularly cysteine, with the
help of vitamin B6. In most cases, this internal production is enough to meet
your daily needs for basic bodily functions.
Infants and
some adults may need taurine added to their diet.
Based on the
small study in humans, about a third of children with autism have low levels of
taurine in their blood.
Is extra
taurine going to provide a benefit to the other two thirds?
Taurine looks
easy to trial. It is normally taken three times a day after a meal. Each dose
would be 0.4g to 4g depending on weight and what the purpose was. The 2 year
olds in the Chinese autism trial will be taking 0.4g three times a day.
Japanese adults with mitochondrial disease (MELAS) are taking 4g three times a
day.
One can oF Red Bull contains 1g of taurine. Most supplements contain 0.5 to 1g. This is a
similar dose to what is given to pet cats and dogs. Just like Red Bull contains B vitamins, so do the taurine products for cats and dogs.
Some of the
effects will be immediate, while others will take time to show effect. For
example there can potentially be an increase in mitochondrial biogenesis. I
expect any changes in gut bacteria would also take a long time to get established.
The effect
via GABA on increasing brain excitability is an interesting one for people
taking bumetanide for autism, where the GABA developmental switch did not take
place. Based on the research you could argue that it will be beneficial or
indeed harmful.
What I can
say is that in Monty, aged 20 with ASD and taking bumetanide for 12 years, he
responded very well on the rare occasions he drank Red Bull.
-------
Vitamin
B5 and L carnitine for KATA6A Syndrome
I was asked
about KATA6A syndrome recently.This
syndrome is researched by Dr Kelley, the same doctor who coined the term Autism
secondary to mitochondrial dysfunction (AMD).
KAT6A
Research and Treatment An Update by Richard I Kelley , MD, PHD
Some kids
with KATA6A, like Peter below, respond very well to Dr Kelley’s mito cocktail.
Here’s my experience with the mitochondrial cocktail:
– At 4 weeks after the start of the cocktail, Peter became
potty-trained during the day without any training. He pulled his pull up off,
refused to put it back on.
-At 2 months, Peter started riding his bike with no training
wheels and playing soccer. He became able to kick the ball and run after it
till he scores.
-At 2.5 months, he started skiing independently. I used to
try to teach how to ski since he was 3yo. I used to spend hours and hours
picking him up off the snow with no result. I tried different kind of
reinforcers (food,..) with no result. After the cocktail, he just went down the
hill by himself, He can ski independently now and knows how to make turns.
-At 2-3 months, I started noticing an increased strength in
playing ice hockey and street hockey with a better understanding of the game.
His typing ability improved too, he used to have severe apraxia while typing
(type the letter next to the letter he wants to type…).
-At 3-4 months, Peter’s fingers on the piano became stronger,
he became able to play harder songs with less training and less frustration. I
also noticed an increase in “common sense” like for example putting his
backpack in the car instead of throwing it on the floor next to the car and
riding the car without his backpack. Another example, when we go to the public
library, he knows by himself that he has to go to the children section, and
walks independently without showing him directions to the play area inside the
children section. In the past, he used to grab books the time he enters the
library, throw a tantrum on the floor. The most important milestone is that
Peter started to say few words that I can understand.
-At 11 months, Peter became potty-trained at night. His
speech is slowly getting clearer. His fine and gross motor skills are still
getting better.
Some readers
of this blog have been in touch with Dr Kelley and he does give very thorough replies.
Generally
speaking, the therapies for mitochondrial diseases/dysfunctions seem to be
about avoiding it getting worse, rather than making dramatic improvements. In
the case of Peter (above) the effects do look dramatic. There are many other ideas
in the research that do not seem to have been translated into therapy.
A study from
two years ago does suggest that vitamin B5 and L carnitine should be trialed.
Mutations in several genes involved in the
epigenetic regulation of gene expression have been considered risk alterations
to different intellectual disability (ID) syndromes associated with features of
autism spectrum disorder (ASD). Among them are the pathogenic variants of the
lysine-acetyltransferase 6A (KAT6A) gene, which causes KAT6A syndrome. The KAT6A enzyme participates in
a wide range of critical cellular functions, such as chromatin remodeling, gene
expression, protein synthesis, cell metabolism, and replication. In this
manuscript, we examined the pathophysiological alterations in fibroblasts
derived from three patients harboring KAT6A mutations. We addressed survival in
a stress medium, histone acetylation, protein expression patterns, and
transcriptome analysis, as well as cell bioenergetics. In addition, we evaluated the therapeutic
effectiveness of epigenetic modulators and mitochondrial boosting agents, such
as pantothenate and L-carnitine, in correcting the mutant phenotype.
Pantothenate and L-carnitine treatment increased histone acetylation and
partially corrected protein and transcriptomic expression patterns in mutant
KAT6A cells. Furthermore, the cell bioenergetics of mutant cells was
significantly improved. Our
results suggest that pantothenate and L-carnitine can significantly improve the
mutant phenotype in cellular models of KAT6A syndrome.
Next, we analyzed the expression changes of
specific genes in treated and untreated conditions. We found that the
expression levels of downregulated genes in the mutant KAT6A fibroblasts, such
as KAT6A, SIRT1, SIRT3, NAMPT1, Mt-ND6, NDUFA9, PANK2, mtACP, PDH (E1 subunit α2), KGDH (E2 subunit), SOD1, SOD2,
and GPX4 were
significantly restored after pantothenate and L-carnitine treatment. The
proteins encoded by these genes are involved in acetylation-deacetylation
pathways, CoA metabolism, mitochondria, and antioxidant enzymes, all of which
are critical for intracellular processes in embryonic and childhood
development.
KAT6A acts
as a master regulator by fine-tuning gene expression through chromatin
modifications, so we should expect it to have wide ranging effects. All the
closest interactions are will other genes that modify gene expression.
KAT6A mutations are indeed linked to
microcephaly, a condition characterized by a smaller than average head circumference.
Most autism is associated with
hyperactive pro-growth signalling pathways; only a minority is associated with the opposite and this would fit with
microcephaly, which is typical in KAT6A.
Microcephaly is a very common feature
of Rett syndrome.
Among the features of KAT6A syndrome
there will be overlaps with other syndromes.
Dr Kelley analyses amino acids looking
for mitochondrial dysfunction. He has found this present in KAT6A, but this is
only one treatable feature of the syndrome.
Targeting growth signaling pathways
might well be worth pursuing. You would be looking a what works in other people
with smaller heads.
I wrote quite a lot about IGF-1
previously in this blog.
It would be highly plausible that
these related therapies might be of benefit. The easy one to try is cGPMax,
because it is sold OTC. IGF-1 itself might be beneficial, you would have to
find a helpful endocrinologist to trial it.
All the therapies of idiopathic autism
could be trialed.
If the child has a paradoxical
reaction to any benzodiazepine drug, then you know that bumetanide is likely to
be beneficial.
Since mitochondrial function is
impaired in KAT6A, taurine is another thing to trial.