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pyrrole-2,3,5-tricarboxylic acid

Known as: 2,3,5-PTCA 
National Institutes of Health

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Pyrroles

Papers overview

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2020
2020
A possible new oxidation marker for hair adulteration: detection of PTeCA (1H-pyrrole-2,3,4,5-tetracarboxylic acid) in bleached hair.
Hair analysis has become a valuable tool in forensic toxicology to assess drug or alcohol abstinence. Yet, hair adulteration by… 
2012
2012
PTCA, pyrrole-2,3,5-tricarboxylic acid; AHP, aminohydroxyphenylalanine; EM, eumelanin; PM, phaeomelanin. a MM and MN, homozygous and heterozygous carriers of the mutation, respectively; NN, wild-type…
composed of the first 67 amino acids which prevents the pro- duction of any normal POMC-derived peptides (Fig. 1c). Both parents… 
2007
2007
Long-Lasting Pigmentation More than Its Intensity Is a Reliable Indicator of Skin Sun Resistance
Background: The currently adopted method for predicting sun sensitivity is Fitzpatrick’s classification which however is based on… 
2005
2005
Eumelanin and pheomelanin contents in hair and 5-S-cysteinyldopa and 5-hydroxy-6-methoxyindole-2-carboxylic acid levels in urine in Japanese oculocutaneous albinism
Melanins are classified into eumelanin, whose colour is black-brown to black, and pheomelanin, whose colour is yellow to red… 
2003
2003
Changes in the proliferation and differentiation of neonatal mouse pink-eyed dilution melanocytes in the presence of excess tyrosine.
Changes in the proliferation and differentiation of epidermal melanocytes derived from newborn mice wild-type at the pink-eyed… 
2001
2001
Effects of isopropyl unoprostone on melanogenesis in mouse epidermal melanocytes.
1996
1996
Composition of mammalian eumelanins: analyses of DHICA-derived units in pigments from hair and melanoma cells.
The proportions in which two eumelanin monomers, namely 5,6-dihydroxyindole-2-carboxylic acid (DHICA) and 5,6-dihydroxyindole… 
1994
1994
Melanins in IGR 1 melanoma cells.
Information on the composition of melanins is obtained by analysis both of 4-amino-3-hydroxyphenylalanine (AHP) after hydriodic… 
1988
1988
Induction of melanization within hair bulb melanocytes in chinchilla mutant by melanogenic stimulants.
In an attempt to clarify the mechanisms underlying the lack of melanin formation in hair bulb melanocytes of chinchilla mice… 
1974
1974
Isolation of oligomers of 5,6-dihydroxyindole-2-carboxylic acid from the eye of the catfish.
The reflecting material of the tapetum lucidum of the sea catfish (Arius felis) was chromatographed on Sephadex LH-20 in methanol… 
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