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Trimethylamine N-oxide (TMAO) is an organic compound with the formula (CH 3) 3 NO. It is in the class of amine oxides. Although the anhydrous compound is known, trimethylamine N-oxide is usually encountered as the dihydrate. Both the anhydrous and hydrated materials are white, water-soluble solids.
Trimethylamine (TMA) is an organic compound with the formula N(CH 3) 3. It is a trimethylated derivative of ammonia. TMA is widely used in industry. [5] [6] At higher concentrations it has an ammonia-like odor, and can cause necrosis of mucous membranes on contact. [7] At lower concentrations, it has a "fishy" odor, the odor associated with ...
FMO3 is the primary enzyme in humans which catalyzes the N-oxidation of trimethylamine into trimethylamine N-oxide; [8] [10] FMO1 also does this, but to a much lesser extent than FMO3. [13] [14] Genetic deficiencies of the FMO3 enzyme cause primary trimethylaminuria, also known as "fish odor syndrome".
Normally, the FMO3 enzyme converts fishy-smelling trimethylamine into trimethylamine N-oxide which has no odor. If the enzyme is missing or its activity is reduced because of a mutation in the FMO3 gene, trimethylamine is not broken down and instead builds up in the body. As the compound is released in a person's sweat, urine, and breath, it ...
She also showed the dietary substrate trimethylamine N-oxide (TMAO) is subject to metabolic retroconversion. [ 7 ] Hoyles and McArthur identified that TMAO, a molecule found in fish and seafood, may play a role in improving cognitive function by strengthening the blood–brain barrier.
Co-occurrence networks show difference in gut microbiota between herbivorous and carnivorous cichlids Nodes coloured according to phylum. The herbivore network has higher complexity (156 nodes and 339 edges) compared to the carnivore network (21 nodes and 70 edges).
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Trimethylamine N-oxide (TMAO) reduction to trimethylamine (TMA) Dimethyl sulfoxide (DMSO) reduction to dimethyl sulfide (DMS) Reductive dechlorination; TMAO is a chemical commonly produced by fish, and when reduced to TMA produces a strong odor. DMSO is a common marine and freshwater chemical which is also odiferous when reduced to DMS.