B6 and SAM. There was a relation between polyneuropathy and diabetes, hyperglycaemia and body height.
No relation to homocysteine level was found. Vitamin B12, folat or B6 were not measured. However, they estimated vitamin B6 intake based on a dietary history model. Thiamine. Thiamine or thiamin or vitamin B1 (/ˈθaɪ.əmɨn/ THY-ə-min), named as the "thio-vitamine" ("sulfur-containing vitamin") is a water-soluble vitamin of the B complex.
First named aneurin for the detrimental neurological effects if not present in the diet, it was eventually assigned the generic descriptor name vitamin B1. Its phosphate derivatives are involved in many cellular processes. The best-characterized form is thiamine pyrophosphate (TPP), a coenzyme in the catabolism of sugars and amino acids. Thiamine is used in the biosynthesis of the neurotransmitter acetylcholine and gamma-aminobutyric acid (GABA). In yeast, TPP is also required in the first step of alcoholic fermentation. Organic acid.
An organic acid is an organic compound with acidic properties.
The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids.