York boat trip : Are you interested
You can see her post on the tmau.org website forum :
York boat trip for tmau people
Example boat trip company
Those who go to meetups find them very therapeutic, pilgrimage-like.


We would like original pics and music for posts and any videos we make. Feel free to send them (non-copyrighted) to![]() |
| TMAU Foundation website |
The bi-annual ISBOR Conference is underway in Salvador, Brazil. ISBOR is the international society for breath odor research. The impression was that interactivity with the internet would be provided for this conference, but it seems not to be the case.
ISBOR
ISBOR conference May 25-28 Salvador, Brazil
We reported earlier that someone was bravely appearing in the best-selling British newspaper The Sun about their trimethylaminuria (TMAU) this Tuesday or Wednesday. The story did not appear, but a Sun photographer was at the volunteer's home on Sunday, so it does seem the story will be going ahead.
It is our understanding that 'several' applications were submitted for the research grant made available via the NORD Fund, which was around $30,000 raised by the body odor/halitosis community, mainly through the hard work of the website rrr.tmau.org .
The application date closed on 20th May. Now it is a case of waiting until they decide who wins the bid around September. At least we can be sure that some sort of modest TMAU research will take place some time after September.
Thanks to everyone who donated. You can be glad to know it was worthwhile. Over the last few years very little TMAU research has been conducted.
In a previous post it was suggested that the 23andme.com DNA test may be a good way of DNA testing for FMO3 variants/mutants inexpensively. However, it seems that the number of FMO3 SNPs checked for is not as comprehensive as hoped. It checks for 56 FMO3 SNPs in total. Of those, only 17 are at codons with known variants/mutants. Most of the others seem to be to do with FMO3 introns (introns will be discussed in a later post) and about 5 are currently unlisted for any information.
It tests for 17 variants/mutants, out of about 50 known variants/mutants. Most of the 17 are common polymorphisms/variants, but the rarer more severe mutants are not checked for.
The variants, mutants tested for are at the codons listed below (an FMO3 protein is made up of 532 codons)
82, 147, 158 ,205
,239 ,257 ,277 ,285
,302 ,305 ,308 ,360
,362 ,486 ,502 ,503 ,510
This does not include the codons known to have rarer known variants/mutants (about 300 ?) such as at codon :
32, 37, 51, 52, 58, 61, 64,
66, 114, 143, 148, 153, 187
197, 198, 199, 201, 223, 237,
238, 314, 387, 388, 394, 415
434, 470, 475, 492, 500
So it looks like the 23andme.com genetic testing service is currently not suitable for FMO3 DNA testing other than for the more common FMO3 variants. It should be also kept in mind that much more is still to be learnt about FMO3 genetics, and even a comprehensive test is currently still capable of a 'false negative' result. For example, little is known of the FMO3 introns (all the testing and research mostly involving the exons), as explained in this post
23andme do update their SNP testing chip occasionally, so in future it is possible it will be more thorough for FMO3. But FMO3 seems a low priority to them so it is unlikely, and if you have already used their service you would need to retest
The story of the brave lady who appeared on the UK TV programme 'embarrassing bodies' is now available to view on the TV channel's official youtube page. It has been available elsewhere on youtube for a while, but it is good to see TMAU feature on an official youtube channel, and hopefully will lead to greater awareness. The video seemed to demonstrate the usefulness of monitoring TMA levels on the TMAU diet protocol to boost trust in the diet protocol. It seemed her TMA level went down from 45 umols to 15 umols, which unfortuntaely is still a bit above Sheffield Children Hospital currently set 'high limit' for TMA, but was a lot less than 45 umols.
They have published the story in 3 parts. In 2 months it has over 6,000 views. Thanks again to Michelle for appearing :
It's that time of year again, and MEBO Research must submit its Annual Returns in England, where it is registered as a Not For Profit Limited by Guarantee Company and in the United States as a 501(c)(3) Public Charity.
As noted in its website, MeBO has committed to practice,
Transparency : All moneys received, fund balances, planned and actual spending activities will be disclosed on this website and/or English and Spanish blogs.


It is hoped readers may be interested in a series of posts about the technical side of Trimethylaminuria (TMAU), especially genetic TMAU. Genetic TMAU is deemed to be caused by a deficiency (of some degree) of the flavin mono-oxygenase Isoform 3 enzyme (FMO3). It seems the deficiency can be generally constant or can be only at certain times, such as menstruation, depending on the variant causing it.
A simplistic way to think of the genetic building of FMO3 is to think of the FMO3 protein being made up from a series of 532 amino acids in a particular sequence. An analogy to use would be a ladder with 532 rungs. If at any rung (codon) there is a fault (variant), it can cause problems depending on the expected severity of the variant. Also, a nonsense mutation is where the building of the rungs is stopped completely at a certain rung, leaving an unfinished 'ladder' to be turned into the FMO3 protein.
At each rung in the ladder, the person can potentially have a variant on one side (heterozygous) or both sides (homozygous), or be completely normal.
A common 'variant' in humans is known as E158K. It is estimated that perhaps 50% of the population are at least heterozygous for this variant. It means at rung (codon) 158, the amino acid should be glutamic acid (E), but instead is lysine (K). On it's own, this is such a small error that no negative effect on FMO3 function is expected even if the person has variant E158K on both sides (homozygous) of rung 158.
Another common variant is E308G. Using the ladder analogy again, this is a common variant at 'rung' 308. It is meant to be lysine (E), but instead is glycine (G). Again, whether the person has one copy (heterozygous) or 2 (homozygous), it is such a minor fault that normal function is predicted.
However, it now seems expected that if someone is at least heterozygous for both the above variants on the same side, i.e., on the same chromosome, from the same parent, there is predicted to be a loss of function to some degree, e.g., 80% TMA to TMAO conversion, rather than over 95%. Possibly this combination may make up most cases of genetic TMAU - they would likely be 'mild' genetic TMAU cases.
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| Smart Nutrition Website |
Update from Natalie :
Ideally it will be for a magazine and a newspaper but never say never to TV.
If it's a younger woman, in her 20's, it opens up more media potentials for us but obviously it depends on who comes back to you.Yes they will get paid, again depending on the publication and if they appear in more than one then obviously the fee doubles.
I will also put any support group into the article as a way of thanking you for your help, just please let me know the details.
Kindest regards
Natalie
In humans, FMO1 is the major FMO in fetal liver and adult kidney and intestine. The human is a very interesting species with respect to developmental regulation of FMO1 and FMO3. FMO1, the major FMO in liver of most adult mammals, is expressed at relatively high concentrations in human fetal liver, but shortly after birth, expression is reduced to almost zero; the signal for termination of expression is related to the parturition and not to gestational age (Hines & McCarver, 2002; Hines et al., 2003). FMO1 may play an important role in extrahepatic drug metabolism in humans as well as in the liver of the fetus exposed to numerous potential xenobiotic substrates in utero. Currently, there are ~20 allelic variants of human FMO1 described by Furnes et al. (2003) and Hines et al. (2003) and the GeneSNPs database. The enzymatic activity of some of the FMO1 variants are given in Table 4. Based on the work of Hines et al. (2003), some of these allelic variants are probably rare alleles (H97Q, I303V, I303T, R502X) and may not contribute significantly to interindividual differences in FMO1 expression. On the other hand, a much more common variant (FMO1*6) caused by a C→A transversion in the upstream promoter region (−9,536), may impact FMO1 expression as it renders a Yin Yang basal promoter incapable of binding YY1 (Hines et al., 2003). The allelic frequency ofFMO1*6 is 13, 11, and 30% in African–Americans, northern European–Americans, and Hispanic–Americans, respectively (Hines et al., 2003).
2005 FMO paper : Krueger & Williams
NEW PAPER : Common polymorphisms in FMO1 are associated with nicotine dependence
Abstract
BACKGROUND:
Cigarette smoking and other forms of tobacco use are the leading cause of preventable mortality in the world. A better understanding of the etiology of nicotine addiction may help to increase the success rate of cessation and to decrease the massive morbidity and mortality associated with smoking.METHODS:
To identify genetic polymorphisms that contribute to nicotine dependence, our group undertook a genetic association study including three enzyme families that potentially influence nicotine metabolism: cytochrome P450 enzymes, flavin monooxygenases (FMOs), and UDP-glucuronosyl transferases.RESULTS:
Several polymorphisms in FMO1 showed association in a discovery sample, and were tested in an independent replication sample. One polymorphism, rs10912765, showed an association that remained significant after Bonferroni correction (nominal P=0.0067, corrected P=0.0134). Several additional polymorphisms in linkage disequilibrium with this single nucleotide polymorphism also showed association. Subsequent in-vitro experiments characterized FMO1 as a more efficient catalyst of nicotine N-oxidation than FMO3. In adult humans, FMO1 is primarily expressed in the kidney and is likely to be a major contributor to the renal metabolism and clearance of therapeutic drugs. FMO1 is also expressed in the brain and could contribute to the nicotine concentration in this tissue.CONCLUSION:
These findings suggest that polymorphisms in FMO1 are significant risk factors in the development of nicotine dependence and that the mechanism may involve variation in nicotine pharmacology.
It's amazing to think it was 2 years ago that we mentioned the last ISBOR conference was happening in Germany. So that makes it time for the next conference, this time being held in Brazil on May 25-28. Apparently anyone is welcome to attend. There was no internet interactivity last time, but it says there will be this time, although nothing indicates this on the site at this point.
MEBO Research is pleased to announce an arrangement in the UK with Smart Nutrition to offer the trimethylaminuria urine test via mail order for £170 in the UK and £177 in Europe. Through Biolab Medical Unit, the test is sourced by the Department of Clinical Chemistry, Sheffield Children's Hospital where Nigel Manning, Principal Clinical Scientist, performs most if not all of the UK's TMAU tests.
One of the goals of MeBO Research is to make trimethylaminuria testing more widely accessible. In the UK, the only test source currently known of is Sheffield Children's Hospital through NHS. Unfortunately, NHS will not allow people to test directly (even for a fee), so we have been looking for ways to get around this obstacle, in order for people to test directly for a fee if they wish.
Through an arrangement with Biolab and smartnutrition.co.uk, we are now happy to offer the TMAU urine test for £170 (£177 in Europe), which is the least costly in the UK for those who wish to test directly. In the future we are looking for other sources and to bring the price down; however this is the best we can offer for now.
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| Smart Nutrition Website |
USA : (712) 432 1620