News & Views on Systemic Body Odor and Halitosis such as trimethylaminuria TMAU. If you have fecal odors or bowel odors it may be metabolic/systemic

13 February 2015

Clinical Breathalyzer that could perhaps detect metabolic malodors


Enose sensor for metabolic maodorsAbout : Lonestar Portable Analyzer by OwlstoneA breathalyzer that can detect volatiles in the breath

Owlstone have developed a clinical breathalyser that can detect volatiles in the breath to a level of 'parts per billion'. It was developed by the boss for clinical use after his wife died of colon cancer. One way they see it being used is to detect lung cancer early by looking for certain biomarker volatile organic compounds in the breath




What use is this to those with metabolic malodor ?
People with metabolic malodor probably emit volatiles through their skin and breath, so there is probably a 'signature' volatile pattern in their breath. Hopefully this could be detected by the Lonestar.

Why aren't we using it ?
The Lonestar seem to be 'ready to use' but it's a new device and quite big and expensive, so it seems it would probably be more a device that would be used in a clinical setting. Though perhaps it could be bought by the community and say used at a meetup. I have not seen what it can detect but hopefully it is a wide range of volatiles. My suspicion is that those who have 'fecal body odor' probably emit larger amounts of sulfides than normal people.

It seems that Owlstone may also be working on a consumer breath analyzer that would be much more portable and hopefully affordable to the malodor community.      

Links :
Daily Mail article (Feb 2015) on The Lonestar by Owlstone
Daily Mail article (Apr 2014) on a consumer Breathalyzer by Owlstone
Owlstone Lonestar Portable Analyzer

The main needs of the metabolic malodor community
An untargeted urine test that leads to a diagnostic urine test
DNA testing, beginning with FMO3 gene
Breath analyzer
Microbiome DNA test



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Exome/Genome testing may be better option than single gene testing.

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Note : Genos Exome Testing.

Exome testing is almost the same price now as single gene testing. Also Genos is consumer friendly, which standard DNA labs are not.

So the blog offer to test solely for FMO3 is almost obsolete, and so no longer offered.


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At the moment it is not clear, but hoped this will become clear over the next few months

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