[Transmethylation and the redox homeostasis]
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Updated: May 9, 2026

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Published on: June 21, 2021
Dénes Kleiner1, András Bersényi, Hedvig Fébel
1Semmelweis Egyetem, Gyógyszerésztudományi Kar Farmakognóziai Intézet Budapest. deneskleiner@gmail.com
Introduction:
Transmethylation modifies configuration and proceeds via formaldehyde. It has a significant role for example in epigenetic regulation. The whole methyl-pool can be evaluated by the measurement of bound formaldehyde.
Aim:
The bound formaldehyde was measured in wheat, bean, beetroot, cabbage, broiler- and rabbit liver. The relationship between transmethylation and redox homeosthasis was studied in the liver of domestic animals, and in the rat model of fatty liver.
Method:
The diet of rats was enriched with cholesterol, sunflower oil and cholic acid. The bound formaldehyde was determined by overpressured layer chromatography. The hydrogen-donating ability was measured with 1.1-diphenyl-2-picrylhydrazylt free radical using spectrophotometric measurement.
Results:
Beans had the most bound formaldehyde. The liver of broilers possessed significantly elevated hydrogen-donating ability and transmethylation ability. Rats with severe fatty liver had significantly less bound formaldehyde and the hydrogen-donating ability tendentiously decreased.
Conclusions:
These results draw attention to the diet, especially in obesity and obesity-related diseases.
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