• Call: 01273-775-480

Gluten-Associated Cross-Reactive Foods and Foods Sensitivity – Cyrex Array 4

Gluten-Associated Cross-Reactive Foods and Foods Sensitivity – Cyrex Array 4

The gluten associated cross-reactive foods and food sensitivity test looks at identifying reactivity to foods know to cross-react to gluten such as wheat alternatives and the ‘ancient’ grains. It will also show any possible reactivity to newly introduced foods on a gluten-free diet such as rice, quinoa, buckwheat and hemp to which you may be sensitised. Although you may be following a gluten-free diet sometimes symptoms can persist or new ones develop. This test can help determine why your symptoms are still present.

Recommended if you:

  • Have Non-Celiac Gluten Sensitivity or Celiac disease
  • Are experiencing limited improvements or are non-responsive on a gluten-free diet
  • Have gut dysbiosis, which appears to be resistant to standard therapy

A gluten-free diet can cause false negative results on gluten protein/peptide tests.

What is being measured – IgG and IgA of;

Gluten containing/Gluten contaminated

  • Rye, Barley, Spelt, Polish Wheat
  • Instant coffee

Gliadin Corss-reactive Foods

  • Cow’s Milk
  • Alpha-Casein and Beta-Casein
  • Casomorphin
  • Milk Butyrophilin
  • Whey Protein
  • Milk Chocolate
  • Yeast
  • Oats
  • Millet
  • Rice
  • Corn

Newly introduced and/or over-consumed on Gluten Free Diet

  • Buckwheat
  • Sorghum
  • Hemp
  • Sesame
  • Amaranth
  • Quinoa
  • Tapioca
  • Teff
  • Potato

Common Antigenic Foods

  • Egg, raw and cooked
  • Soy

Before Taking A CYREX Test

While Cyrex is unable to provide an exhaustive list of medications due to the interactive complexities and varieties of medications and patient circumstances, the following has been noted:

a. Immunosuppressant and corticosteroid drugs can reduce antibody production and cause false negative results.
b. Limited assessments on the effects of aspirin, acetaminophen, and antipsychotics on Arrays 1-4 have been performed. No noticeable effects were observed.
c. Inhalers can affect the results of Cyrex’s oral fluid testing (Array 1). Wait two weeks after completion of inhalant dosages before collecting the specimen.
d. Unknown cross-reactive epitopes from foods and microorganisms may stimulate the antibody production in the absence of a true antigen. Cyrex has already developed Array 4 in order to recognize the most common antigens in this regard.
e. A gluten-free diet can cause false negative results on gluten protein/peptide tests.
f. Certain conditions, such as ileal pouch surgery, may cause a false positive celiac serology.1



Specimen requirements

Blood test that requires a blood sample. The blood sample will need to be centrifuged.

You can attend one of two laboratories in London to have the sample taken or you will need to arrange for a blood sample to be collected by a nurse at your G.P. service or at a private clinic or hospital. Any fee for this service is not included in with the test fee.

Returning your sample

You will need to send your sample back to the lab via a next day postal service – If you are in the UK, Royal mail offer a suitable next day service. If you are outside of the UK then please check with your postal service for options. The cost of the test does not cover the return postage.

Please note that samples should only be posted on Monday – Thursday so that they do not arrive over the weekend when the lab is closed.

Turnaround time

14 – 21 days.

[wpsc_products product_id=’6663′]

Please note – It is VERY important that your sample is returned the same day either by using the Royal Mail or courier service which guarantees delivery by 1pm or by using the UPS service provided with the sample kit. If you decide to use the UPS service, there is an additional charge of £9.00.

Where can I arrange a blood draw?