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Intuniv

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Intuniv, Glutamate and ADHD Symptoms
Thanks to Intuniv we have a new neurotransmitter to consider – and it must be considered in the context, as with any other ADHD med, of the Therapeutic Window. Glutamate, as you will soon see in these pages, as well as several others [PEA, Dopamine, Norepinephrine, and indeed Serotonin] can all make a difference as we regularly address the specifics of ADHD neurotransmitter corrections. For this post: specific glutamate considerations.

For The Record
These are previous CorePsych Blog posts on Intuniv:

Details About Glutamate
Amy Arnsten, PhD at Yale: See this summary page for details of this interesting ADHD science. This paragraph is from that page:

Goldman-Rakic used a spatial working memory paradigm to uncover the neural basis of working memory abilities, and found that representational knowledge is encoded by networks of prefrontal cortical (PFC) pyramidal cells with shared stimulus properties, engaged in recurrent excitation. [ed note: good working memory diminishes the possibility of ADHD.]

These recurrent excitatory connections depend on glutamate actions at NMDA receptors. Spatial tuning is heightened through GABAergic, inhibitory connections between networks with dissimilar spatial properties (e.g. Rao et al, J. Neurosci 20: 485, 2000). The working memory abilities of the PFC are also highly dependent on the neuromodulatory environment, whereby loss of catecholamines in PFC is as detrimental as destruction of the PFC itself (Brozoski et al, Science 205: 929 1979).

Another reference:
Russell VA, Wiggins TM, Increased Glutamate-Stimulated Norepinephrine Release from Prefrontal Cortex Slices of Spontaneously Hypertensive Rats Metabolic Brain Disease 25: 297, 2010

Bottom line in the office:
1. Excess glutamate alone presents as ADHD with hyperactive and significant ODD symptoms.
2. Diminished glutamate often presents as inattentive, and may be associated with ODD symptoms, but less overt anger.
3. Excess glutamate with both excess dopamine and norepinephrine appears as untreatable with any ADHD meds, even though symptomatically presenting as ADHD. The characteristic refractory, paradoxical response to stimulant meds, and  to Intuniv often leads to the diagnosis of bipolar – but the dysregulation is in the neurotransmitters, not the appearances.
4. Number 3 is always associated with other biomedical issues including food sensitivities measured, e.g., by IgG – such as gluten sensitivity.
5. Measure when in question. Why spend more time guessing?

Still don’t get the relevance? Take a look at this video on Dopamine and Glutamate-
Remember, this video is a patent oversimplification – dopamine does modulate glutamate, as does norepinephrine, but the interplay with many other neurotransmitters is not addressed in this short clip.

Stay tuned for more on the ADHD Neurotransmitter details – and sign up for email notifications for CorePsych Blog in the upper right hand corner of this post.
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Make sure you take a look at these pages!
ADHD Medication Rules Purchase
“Rules” Affiliate Link
Neuroscience Details


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Intuniv For ADHD: Details Beyond ADHD Indications

by Dr Charles Parker on August 22, 2010 · 4 comments

Eagle Owl

Sharp Eyes - Johan J.Ingles-Le Nobel via Flickr

Intuniv for ADHD Sets the Stage For Improved Attention Inquiry
Our multiple CorePsych Blog reports on Intuniv [this the 6th] have kept CorePsych Blog on the first page of Google for many weeks [today #9 on the first page of 199,000 hits], … and why? Hey, I’m not bragging, I’m thanking…  Google first page is a direct result of the excellent and informed questions from our thousands of CorePsych Blog readers out there – you readers have been looking for answers to the complexity of ADHD Appearances. Thank you for over 469 comments and questions!

- Yes, you read that right, we are collectively suffering from a National ADHD Myopia – short-sighted, anachronistic perceptions, treating vapors and impressions, needing immediate Big Vision correction. And don’ t plan on the new DSM 5 to help you out – it only reshuffles the Go Fish cards already on the clinical table. Just like our friend the owl, we can’t hit the target if we can’t see it. Sharp inquiries bring more definitive targets. New eyes are required.

Too Many Are Having Big Trouble Using ADHD Appearances
Diagnostic imprecision is rampant throughout the land [has been for years], and, for those finger-pointing ADHD ranters thinking ADHD is a belief system: you’ll be disappointed, there’s no one to blame for this  imprecision. We simply have not caught up with the functional brain science [detailed in my new book: Rules] – and almost no one is paying attention to the nuances of multiple molecular and cellular imbalances. The ranters, including Tom Cruise [from my first post ~ 4 yrs ago], are, in point of this fact, somewhat correct: we direct our treatments by appearances, not the underlying science.

Intuniv Staging for Deeper ADHD Inquiry
At first blush it appeared that adding Intuniv to our ADHD pharmacopoeia would solve a number of problems – most especially the problem of associated anger with ADHD – and, for many it has indeed added significant treatment benefits, as documented in those previous CorePsych postings. The interesting and unexpected outcome, however, appears to be of greater interest – what about the many who didn’t improve? What about those that deteriorated? The many questions beg for better answers: just exactly what is ADHD, and, what is not? Even more to the point: what are ADHD spectrum disorders on a neurophysiologic level?

The inarguable benefit that Intuniv has delivered to the inquiry, to the ADHD birthing table, is a number of new, unanswered questions, and helpful new extrasynaptic activities that begin to address the extensive underlying biology of ADHD. Many of these abundant questions have previously only been resolved by throwing atypical antipsychotics at mood disordered individuals who suffer with a dual diagnosis of ADHD.

The Glutamate Tipping Point
As noted previously: Intuniv, the glutamate agonist, can helpfully increase glutamate, a neurotransmitter that specifically effects both cognitive and affective centers in the prefrontal cortex associated with working memory- but what if the glutamate is already high for other reasons? What if the ADHD symptoms are associated with/a result of an upstream abundance of glutamate? The unhappy end result of using Intuniv under this circumstance is relative Glutamate Toxicity. In the office, and frequently seen in many of the Intuniv questions here at CorePsych Blog: glutamate toxicity results in marked emotional deterioration, rage, even appearances of semi-psychotic behavior. – This phenomenon is not the rule, but is sufficiently common that we should have it on our thoughtful, sharp eyes radar.

For this reason, especially with refractory individuals, we measure [among 11 other neurotransmitters] glutamate levels, – and we do see glutamate increased in those individuals with significant immune disorders that present comorbidly with those ADHD Appearances. And, yes, Intuniv does not work well for those with elevated urinary glutamate – regardless of your take on the neurotransmitter science. [This observation is replicated regularly, and encourages improved appreciation of more routine neurotransmitter testing.]

Now, after these brief days of Intuniv practice, we have even more new science, new inquiries, new neurotransmitters to talk about. We’re beyond dopamine and norepinephrine as the only neurotransmitter relevant for ADHD treatment. Now we know that glutamate imbalances can provide ADHD Appearances through excess glutamate. These many mechanisms of excess glutamate vary, but are increasingly understood as associated with changes in glutamate decarboxylase, the enzyme that breaks it down.

Beyond Appearances: Deep Dive Into Immunity and Amino Acid Neurophysiology
For those who want to dive deeply – more into the science take a look at one of these 50 papers on the relevance of Glutamate Neurotoxicity – this one appears as a report of considerable interest:

–Matthews CC, Zielke HR, Fishman PS, Remington MP, Bowen TG: Glutamate decarboxylase protects neurons against excitotoxic injury. J Neurosci Res; 2007 Mar;85(4):855-9

Academia Is Not Translating The Science For Clinical Application
Yes, the platitude folks are still thinking the Sun revolves around the Earth, as they are deeply embedded in beliefs and ADHD Appearances, not science. Gina Pera, ADHD maven and author of Is It You, Me or Adult ADD? recently re-experienced this dilemma with no less an august facility than Stanford as they discussed the indications for stimulant medications from what appears as an antiscientific, gossip-oriented perspective.

Stay tuned for more on neurotransmitter information -
cp


Make sure you take a look at these pages!
ADHD Medication Rules Purchase
“Rules” Affiliate Link
Neuroscience Details


Bookmark and Share

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ADHD Medication Rules: Why not use the science?

July 4, 2010 Beyond ADHD

ADHD Medication Rules: Paying Attention To The Meds For Paying Attention is hot off the press – and is available July 4 -> July 11 at the promised early bird discount.

20 comments Read the full article here →

Intuniv for ADHD – Neuroscience Answers

June 7, 2010 Autism Spectrum

Intuniv Questions Encourage More Specific Maintenance for ADHD
Sorry for the silence readers, I’ve been writing… – ADHD Medication Rules: Paying Attention to the Meds for Paying Attention is done, and the Launch Date is, get this, July 4th. Do you think there’s a significance there? You will soon see that independent thinking is the [...]

9 comments Read the full article here →

Intuniv for ADHD: Metabolic Challenges

February 1, 2010 Autism Spectrum

This post is the fifth, with four others, documenting Intuniv Overview, Dosing Details, Drug Interactions and Addiction Indications. Please review all of these posts for more informed use of Intuniv

57 comments Read the full article here →

Holistic Reviews At CorePsych

January 24, 2010 Autism Spectrum

Do consider attending the Holistic Health Virtual Conference, – I look forward to presenting there on Wednesday Jan 27, and am sending out this unique offer for folks who attend.

5 comments Read the full article here →

Intuniv for ADHD: Avoid Drug Interactions

December 16, 2009 Beyond ADHD

Intuniv Driving And Watching: Possible Interactions Detailed – Regular CorePsych Blog readers already know that we don’t like wrong medication turns. Intuniv dosing is important. Intuniv safety has been carefully explored. Maps do help, but watching where we are going is even better.

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Intuniv Answers: ADHD & Addiction Indication

December 15, 2009 Beyond ADHD

Intuniv For ADHD & Substance Abuse – As we move down the early ADHD road of experience with Intuniv some interesting additional indications appear.

8 comments Read the full article here →