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March20 podcast Dr Hazen
anti-TMA pill in a year or 2 ? (scroll 12 mins)

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at UK Findacure conf 2020

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MEBO - UBIOME study 2018



MEBO Gut Microbiome Study
"Microbial Basis of Systemic Malodor and PATM Conditions (PATM)"
Funded by uBiome Research Grant

"Microbial Basis of Systemic Malodor and PATM Conditions (PATM)"

Dynamics of the Gut Microbiota in
Idiopathic Malodor Production

Started May 2018 - Ongoing

Current people sent kits : 100/100
3 kits per person


Participation info : LINK English

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BO Sufferers Podcasts



TMAU Petition world
TMAU UK end total:262
TMAU UK ends 23/01/20
TMAU Petition USA end total 204
USA : Moveon open
TMAU (Dominican)
Metabolomic Profiling Study

Start : Aug 2016
Stage 1 : 27 Canadian volunteers to test
Latest click here (26 oct) :
17 samples returned

Note : Stage 1 is Canada only.
Return cut-off date : passed
Analysis can take 6/8 weeks
Analysis start in/before Nov
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NORD Member Organization
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Denver TMAU Test Lab survey click here
click to Read more/less

USA survey for anyone who wants to improve Denver TMAU test

begun : Dec22
end : no ending for now

A trainee genetic counselor is working at the Denver TMAU test lab. Probably as part of her training. As a project she wishes feedback on any aspect of the Denver TMAU test and process. You can fill in the survey and/or email her (email address is in survey). It's meant for USA people, but perhaps others can give their view too (as we have so few opportunities).

quote from her rareconnect post

"Hello all! I wanted to make you aware of a research study being conducted to better understand the experience and needs of individuals with trimethylaminuria with a goal of being able to create improved patient and healthcare provider education materials. Any participation is completely voluntary and all responses remain confidential. Feel free to use the contact information within the link with any questions or share the survey with others with TMAU."

see this post for more details

Friday, January 22, 2010

New paper from Dr. Preti: from genes to axillae

Genetic influences on human body odor: from genes to the axillae.

Preti G, Leyden JJ.
Monell Chemical Senses Center, Philadelphia, Pennsylvania 19104, USA.

Comment on:

* J Invest Dermatol. 2010 Feb;130(2):529-40.

Several groups have identified the characteristic axillary odorants and how they arrive on the skin surface, pre-formed, bound to water-soluble odorless precursors in apocrine secretions. In the current issue, Martin et al., (2010) describe the relationship between the production of axillary odorants and variants in the ABCC11 gene. Individuals who are homozygotic for a SNP (538G>A) were found to have significantly less of the characteristic axillary odorants than either individuals who were heterozygotic for this change or those who had the wild-type gene. The 538G>A SNP predominates in Asians who have nearly complete loss of typical body odor. ABCC11 is expressed and localized in apocrine sweat glands. These findings are remarkably similar to the ethnic distribution and expression patterns for apocrine apoD, a previously identified carrier of a characteristic axillary odorant.

ABCC11 gene and body odor : Abstract on pubmed
Dr George Preti of the Monell Chemical Senses Center along with another researcher, JJ Leyden, have just released a medical paper about armpit body odor. They mention how recent research has demonstrated that a variant of the ABCC11 gene common amongst some Asians seems to indicate that they will produce naturally less known underarm odors if they are homozygous for the variant SNP (538G>A). Those who are heterozygous for the variant, or have the wild type, produce normal amounts of the odors. This variant is associated with people who tend to have a dry brittle grayish earwax.

Related links
Gene ABCC11 is expressed and localized in apocrine sweat glands.
Ear wax, body odor, and ABCC11 gene
A strong association of axillary osmidrosis with the wet earwax type determined by genotyping of the ABCC11 gene


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