scholarly journals 3,4-Dihydroxyphenylacetic Acid Measurement

2020 ◽  
Author(s):  
Keyword(s):  
Dihydroxyphenylacetic Acid

Effects of prolintane on 3,4-dihydroxyphenylacetic acid concentration in rat brain after spiperone treatment

1979 ◽  
Vol 10 (4) ◽  
pp. 561-563 ◽  
Author(s):  
Ray W. Fuller ◽  
Harold D. Snoddy
Keyword(s):  
Rat Brain ◽  
Acid Concentration ◽  
Dihydroxyphenylacetic Acid

3,4-Dihydroxyphenylacetic acid

2001 ◽  
Vol 57 (8) ◽  
pp. o715-o716 ◽  
Author(s):  
Nobuo Okabe ◽  
Hasuyo Kyoyama
Keyword(s):  
Dihydroxyphenylacetic Acid

Differential effect of psychotropic drugs on dihydroxyphenylacetic acid (DOPAC) in the rat substantia nigra and caudate nucleus

Life Sciences ◽  
1977 ◽  
Vol 21 (3) ◽  
pp. 411-418 ◽  
Author(s):  
F. Fadda ◽  
A. Argiolas ◽  
E. Stefanini ◽  
G.L. Gessa
Keyword(s):  
Substantia Nigra ◽  
Caudate Nucleus ◽  
Psychotropic Drugs ◽  
Differential Effect ◽  
Dihydroxyphenylacetic Acid ◽  
Rat Substantia Nigra

Effect of 3,4-dihydroxyphenylacetic acid on catecholamines and serotonin in rat striatum

1973 ◽  
Vol 18 (3) ◽  
pp. 311-315 ◽  
Author(s):  
K. Yamada ◽  
J. Minnich ◽  
J. Donaldson ◽  
A. Barbeau
Keyword(s):  
Rat Striatum ◽  
Dihydroxyphenylacetic Acid

Brown pigmentation of Xanthomonas campestris pv. phaseoli associated with homogentisic acid

1994 ◽  
Vol 40 (1) ◽  
pp. 28-34 ◽  
Author(s):  
P. H. Goodwin ◽  
C. R. Sopher
Keyword(s):  
Xanthomonas Campestris ◽  
Culture Media ◽  
Taxonomic Status ◽  
Homogentisic Acid ◽  
Brown Pigment ◽  
Pigment Formation ◽  
Dihydroxyphenylacetic Acid ◽  
Alkaline Conditions ◽  
The Media ◽  
Number Of Bacteria

The diffusible brown pigment produced by some strains of Xanthomonas campestris pv. phaseoli was found to be due to the secretion and subsequent oxidation of homogentisic acid (2, 5-dihydroxyphenylacetic acid) rather than tyrosinase activity as previously reported. Homogentisic acid is an intermediate in tyrosine catabolism for a number of bacteria. Brown-pigmented strains appeared to be disrupted in tyrosine catabolism and could not use tyrosine as a nutrient. Nonpigmented strains, however, could utilize tyrosine as a nutrient, and although they secreted homogentisic acid, the levels were approximately 1/100th that of brown-pigmented strains. Production of brown pigment was stimulated by tyrosine and repressed by glucose. Growth in glucose resulted in a drop in the pH of the media, and the greatest pigment formation was associated with a shift to alkaline conditions in the culture media. By buffering the media near pH 7.0, brown pigment formation was repressed, even though unoxidized homogentisic acid accumulated in the culture media. The disruption of tyrosine catabolism corresponds to other reports describing differences between brown-pigmented and nonpigmented strains, and provides further support for the retention of a special taxonomic status for the brown-pigmented strains.Key words: homogentisic acid, pigments, Xanthomonas, fuscans.

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