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A blood test for PARK7, also called DJ-1, a protein studied in research into brain health, offered only as a specialist follow-up marker read with a practitioner and never as a screen for any condition.
PARK7, also known as DJ-1 or Parkinson disease protein 7, is a protein that helps protect cells against oxidative stress. It takes its name from a gene first identified in research into rare inherited forms of Parkinson disease. Measurable amounts are found in the blood, and researchers have looked at PARK7 as one of several markers that might one day help in the assessment of stroke and other brain conditions.
PARK7 is an emerging research marker. It is not used in routine NHS care, there is no established way to apply it to an individual result, and it cannot diagnose or rule out Parkinson disease, stroke or any other condition. It is mainly used alongside other tests and clinical assessment, with limited use as a stand-alone screen.
The price includes the sample taken at our Chiswick clinic, analysis at the Randox accredited laboratory, a practitioner review of your result, and a GP feedback report on request.
Your report shows your PARK7 level and the laboratory reference range. PARK7 is present in red blood cells and many other tissues, so levels can be affected by sample handling and by conditions unrelated to the brain. A raised or low result is a prompt for discussion, not evidence of a particular illness.
A level within the range does not exclude any neurological condition. If you have concerns about tremor, stiffness, slowness of movement or memory, your GP is the right place to start, and your practitioner can help you prepare for that conversation.
No fasting is required and you can take your usual medicines. If you notice sudden face drooping, arm weakness or speech problems, call 999 immediately rather than booking a test. Our team will confirm anything else you need to do when you book.
PARK7 is one of the specialist markers in Omnia Signature, our most comprehensive panel. You can also browse every blood test and price in Chiswick.
The PARK7 test costs £159. It includes the blood sample at our Chiswick clinic, analysis at the Randox accredited laboratory, a practitioner review of your result, and a GP feedback report on request.
No. Parkinson disease is diagnosed by a specialist through clinical examination. PARK7 is a research marker and is not a diagnostic test.
It is sometimes included in broad panels or requested by practitioners interested in specialist markers. It is best seen as additional information rather than an answer.
No. This test measures the level of the protein in your blood. It does not look at your genes.