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The role of L-ascorbic acid in free radical reactions

100%

Kleszczewska E.

Postępy Higieny i Medycyny Doświadczalnej

2002

tom 56

nr 5

655-669

L-ascorbic acid is one of the basic vitamins, necessary to the normal growth and behaviour of organisms. The primary of this review is to present the chemical characteristics of this substance and to discuss its relation to various biological functions of vitamin C, mainly as an antioxidant barrier (we analysed product of reaction between phenothiazine derivative and L-ascorbic acid).

Evidence for the possible existence of a remnant L-gulono-gamma-lactone oxidase (GULO) gene in a teleost genome

51%

Ocalewicz K. , Dabrowski K. , Mambrini M.

Folia Biologica

2010

tom 58

nr 1-2

51-54

DNA fragments related to the cloudy catshark Scyliorhinus torazame L-gulono-gamma- -lactone oxidase (GULO) cDNA were detected in a distant fish species. Although the Southern hybridization pattern was more distinct in species with active GULO, DNA fragments related to the GULO gene were also discovered in the common carp Cyprinus carpio. Additionally, in the common carp, inter-individual variation of the hybridization pattern was observed. Regular screening of available teleost fish gene libraries did not reveal GULO related DNA sequences.