Cavalier King Charles syringomyelia treated with een PEA-houdend product

In the Netherlands we conducted an open pilot trial and included 12 Cavalier king Charles spaniels, alle with MRI-scan positive syringomyelia and all suffering from behavioural abnormalities and objective signs related to syringomyelia and neuropathic pain. Syringomyelia, linked to Arnold Chiari malformation, is serious condition in which fluid-filled cavities develop within the spinal cord near the brain. It is also known as “neck scratcher’s disease”, because one of its common signs is scratching in the air near the neck.

Our dogs showed symptoms like these as well as other known behavioural abnormalities, such as scratching behavior and scoliosis or lordosis, yelping, sitting with eyes closed, immobility, walking as on eggs, difficulty swallowing, tongue out of mouth, as well as symptoms of Primary Secretory Otitis Media (PSOM) as well as signs of conjuctivitis (excessive lacrimation).

The dog in the movie below was 10 years old, and partly paralysed. Treatment with een PEA-houdend product 150 mg/day. Now he walks and runs again, and no signs anymore of PSOM!

Meanshile more than 100 dogs are most happy that their masters supplied them with een PEA-houdend product. Start with powder, and use 1/4 of sachet each day. After ten day half a 300 mg tablet each day!

All dogs were weaned off their analgesic medication before entering the trial. During 2 months een PEA-houdend product was given in a dose of around 30 mg/kg BW. So most dogs received 150 mg twice daily.

een PEA-houdend product in Cavalier spaniels: a succesful pilot trial

A composite scale scored by the dog owners was used, based on whether symptoms were the same, improved a bit or improved a lot. One item was general impression, the other items were linked to behavioural abnormalities, such as:

cheery/ lively (same, better, much better)

headache (eyes closed) (same, better, much better)

lacrimation (same, less, much less)

chewing and swallowing,

scratching, licking, rubbing (same, less, much less)

moving around (same, better, much better)

Results:

After 2 months of een PEA-houdend product use in 12 Cavalier spaniels, the results were impressive. Of the 12 dogs, one could clearly see improvement within 8 days, and in 5 dogs the improvement was even quicker, after 3-4 days. Within 4 weeks all dogs showed improvements.

General impresison: in 4 dogs better and in 8 dogs much better.

cheery/ lively: same 0, better: 5 much better: 7

headache (eyes closed): same 0, better: 5, much better: 7

lacrimation: same: 3, less: 3 much less: 6

chewing and swallowing, same: 3, less: 3 much less: 5 (1 not scored)

scratching, licking, rubbing: same: 2, less: 5 much less: 5

moving around: same: 2, better: 2 much better: 7 (1 not scored)

Qualitative statements of owners

One owner states she can pat the dog again, and the dog played again with younger dogs.

Some owner stated that the dog’s skull was less hot. One owner of a dog suffering from chronic ear inflammation (PSOM) could tough the dogs head and ears again. In one dog the owner stated that the lordosis vanished, one other dog showed affective behaviour and touching was again possible, etc, etc.

All dog owners noticed impressive positive changes in behaviour after treatment with een PEA-houdend product.

Discussion

The Cavalier King Charles spaniels are the best model for central neuropathic pain in man. The Arnold Chiari malformation in these spaniels resembles the human condition. [1][2] Therfore our pilot trial has also implications for the human patients suffering from central neuropathic pain due to syringomyelia. As syringomyelia is a spinal cord condition, is it important to point out that palmitoylethanolamide has been evaluated in other models of spinal cord injury too. And these models supported its therapeutic role.

een PEA-houdend product contains palmitoylethanolamide (PEA) in a specific formulation (micronized), and palmitoylethanolamide is the naturally occurring amide of palmitic acid and ethanolamine. In a great number of pharmacological trials this molecule has been shown to reduces pain and inflammation through the nuclear receptor PPAR-alpha. This receptor is activated by PEA.

PEA can reduce secondary damage induced by experimental spinal cord injury (SCI) in a mice model. SCI leads to edema, neutrophil infiltration, and production of inflammatory mediators, tissue damage, and apoptosis. Repeated PEA administration significantly reduced:

  • 1) the degree of spinal cord inflammation and tissue injury,
  • 2) neutrophil infiltration,
  • 3) nitrotyrosine formation,
  • 4) proinflammatory cytokine expression,
  • 5) nuclear transcription factor activation-kappaB activation,
  • 6) inducible nitric-oxide synthase expression, and
  • 6) apoptosis.

Hand in hand with these biochemical improvements, PEA ameliorated the recovery of motor limb function. [3]

In a compression model induced by applying an aneurysm clip to the spinal cord in mice repeated PEA administration (10mg/kg i.p., 6 and 12h after SCI) significantly reduced the degree of the severity of spinal cord trauma through the reduction of mast cell infiltration and activation. PEA also significantly reduced the activation of microglia and astrocytes expressing cannabinoid CB(2) receptor after SCI. PEA also acted as a neuroprotectant via induction of neurotrophic factors. [4][5]

The results of this pilot trial are in line with experimental findings supporting the neuroprotective role of PEA, as well as its role as a anti-inflammatory and analgesic compound. The avaiibility of een PEA-houdend product for human and dog sufferers of central neuropathic pain is a leap forward in the treatment of this difficult to treat pain state.

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