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Results: 1-19 |
Results: 19
Pictet-Spengler condensation of the antiparkinsonian drug L-DOPA with D-glyceraldehyde. Opposite kinetic effects of Fe3+ and Cu2+ ions and possible implications for the origin of therapeutic side effects
Authors: Manini, P d'Ischia, M Prota, G
Citation: P. Manini et al., Pictet-Spengler condensation of the antiparkinsonian drug L-DOPA with D-glyceraldehyde. Opposite kinetic effects of Fe3+ and Cu2+ ions and possible implications for the origin of therapeutic side effects, BIO MED CH, 9(4), 2001, pp. 923-929
Zinc-catalyzed oxidation of 5-S-cysteinyldopa to 2,2 '-bi(2H-1,4-benzothiazine): Tracking the biosynthetic pathway of trichochromes, the characteristic pigments of red hair
Authors: Napolitano, A Di Donato, P Prota, G
Citation: A. Napolitano et al., Zinc-catalyzed oxidation of 5-S-cysteinyldopa to 2,2 '-bi(2H-1,4-benzothiazine): Tracking the biosynthetic pathway of trichochromes, the characteristic pigments of red hair, J ORG CHEM, 66(21), 2001, pp. 6958-6966
An unusual decarboxylative Maillard reaction between L-DOPA and D-glucose under biomimetic conditions: Factors governing competition with Pictet-Spengler condensation
Authors: Manini, P d'Ischia, M Prota, G
Citation: P. Manini et al., An unusual decarboxylative Maillard reaction between L-DOPA and D-glucose under biomimetic conditions: Factors governing competition with Pictet-Spengler condensation, J ORG CHEM, 66(15), 2001, pp. 5048-5053
Melanin density and melanin type predict melanocytic naevi in 19-20 year olds of northern European ancestry
Authors: Dwyer, T Prota, G Blizzard, L Ashbolt, R Vincensi, MR
Citation: T. Dwyer et al., Melanin density and melanin type predict melanocytic naevi in 19-20 year olds of northern European ancestry, MELANOMA RE, 10(4), 2000, pp. 387-394
Melanins, melanogenesis and melanocytes: Looking at their functional significance from the chemist's viewpoint
Authors: Prota, G
Citation: G. Prota, Melanins, melanogenesis and melanocytes: Looking at their functional significance from the chemist's viewpoint, PIGM CELL R, 13(4), 2000, pp. 283-293
Latanoprost stimulates eumelanogenesis in iridial melanocytes of cynomolgus monkeys
Authors: Prota, G Vincensi, MR Napolitano, A Selen, G Stjernschantz, J
Citation: G. Prota et al., Latanoprost stimulates eumelanogenesis in iridial melanocytes of cynomolgus monkeys, PIGM CELL R, 13(3), 2000, pp. 147-150
Isolation and characterization of mammalian eumelanins from hair and irides
Authors: Novellino, L Napolitano, A Prota, G
Citation: L. Novellino et al., Isolation and characterization of mammalian eumelanins from hair and irides, BBA-GEN SUB, 1475(3), 2000, pp. 295-306
New regulatory mechanisms in the biosynthesis of pheomelanins: rearrangement vs. redox exchange reaction routes of a transient 2H-1,4-benzothiazine-o-quinonimine intermediate
Authors: Napolitano, A Di Donato, P Prota, G
Citation: A. Napolitano et al., New regulatory mechanisms in the biosynthesis of pheomelanins: rearrangement vs. redox exchange reaction routes of a transient 2H-1,4-benzothiazine-o-quinonimine intermediate, BBA-GEN SUB, 1475(1), 2000, pp. 47-54
A novel octahydropyridobenzothiazepine metabolite in human urine: Biomimetic formation from the melanogen 5-S-cysteinyldopa and formaldehyde via a peculiar sulfur-controlled double Pictet-Spengler condensation
Authors: Manini, P d'Ischia, M Prota, G
Citation: P. Manini et al., A novel octahydropyridobenzothiazepine metabolite in human urine: Biomimetic formation from the melanogen 5-S-cysteinyldopa and formaldehyde via a peculiar sulfur-controlled double Pictet-Spengler condensation, J ORG CHEM, 65(14), 2000, pp. 4269-4273
Human melanocytes and melanomas express novel mRNA isoforms of the tyrosinase-related protein-2/DOPAchrome tautomerase gene: Molecular and functionalcharacterization
Authors: Pisarra, P Lupetti, R Palumbo, A Napolitano, A Prota, G Parmiani, G Anichini, A Sensi, M
Citation: P. Pisarra et al., Human melanocytes and melanomas express novel mRNA isoforms of the tyrosinase-related protein-2/DOPAchrome tautomerase gene: Molecular and functionalcharacterization, J INVES DER, 115(1), 2000, pp. 48-56
Microanalysis of melanins in mammalian hair by alkaline hydrogen peroxide degradation: Identification of a new structural marker of pheomelanins
Authors: Napolitano, A Vincensi, MR Di Donato, P Monfrecola, G Prota, G
Citation: A. Napolitano et al., Microanalysis of melanins in mammalian hair by alkaline hydrogen peroxide degradation: Identification of a new structural marker of pheomelanins, J INVES DER, 114(6), 2000, pp. 1141-1147
Generation of neurotoxins by new reaction pathways of dopamine under oxidative stress conditions: Contributing etiopathological factors in Parkinson's disease
Authors: Pezzella, A Prota, G
Citation: A. Pezzella et G. Prota, Generation of neurotoxins by new reaction pathways of dopamine under oxidative stress conditions: Contributing etiopathological factors in Parkinson's disease, NEUROTOXIC FACTORS IN PARKINSON'S DISEASE AND RELATED DISORDERS, 2000, pp. 233-236
Reaction of dopamine with D-glyceraldehyde under biomimetic conditions: Stereoselective formation of tetrahydroisoquinolines and rate-accelerating effects of transition metal ions
Authors: Manini, P d'Ischia, M Lanzetta, R Parrilli, M Prota, G
Citation: P. Manini et al., Reaction of dopamine with D-glyceraldehyde under biomimetic conditions: Stereoselective formation of tetrahydroisoquinolines and rate-accelerating effects of transition metal ions, BIO MED CH, 7(11), 1999, pp. 2525-2530
New reaction pathways of dopamine under oxidative stress conditions: Nonenzymatic iron-assisted conversion to norepinephrine and the neurotoxins 6-hydroxydopamine and 6,7-dihydroxytetrahydroisoquinoline
Authors: Napolitano, A Pezzella, A Prota, G
Citation: A. Napolitano et al., New reaction pathways of dopamine under oxidative stress conditions: Nonenzymatic iron-assisted conversion to norepinephrine and the neurotoxins 6-hydroxydopamine and 6,7-dihydroxytetrahydroisoquinoline, CHEM RES T, 12(11), 1999, pp. 1090-1097
5,6-dihydroxyindoles in the Fenton reaction: A model study of the role of melanin precursors in oxidative stress and hyperpigmentary processes
Authors: Novellino, L Napolitano, A Prota, G
Citation: L. Novellino et al., 5,6-dihydroxyindoles in the Fenton reaction: A model study of the role of melanin precursors in oxidative stress and hyperpigmentary processes, CHEM RES T, 12(10), 1999, pp. 985-992
Transient quinonimines and 1,4-benzothiazines of pheomelanogenesis: New pulse radiolytic and spectrophotometric evidence
Authors: Napolitano, A Di Donato, P Prota, G Land, EJ
Citation: A. Napolitano et al., Transient quinonimines and 1,4-benzothiazines of pheomelanogenesis: New pulse radiolytic and spectrophotometric evidence, FREE RAD B, 27(5-6), 1999, pp. 521-528
6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline formation by iron mediated dopamine oxidation: a novel route to endogenous neurotoxins under oxidative stress conditions.
Authors: Napolitano, A Pezzella, A Prota, G
Citation: A. Napolitano et al., 6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline formation by iron mediated dopamine oxidation: a novel route to endogenous neurotoxins under oxidative stress conditions., TETRAHEDR L, 40(14), 1999, pp. 2833-2836
Expedient synthesis of 5,6-dihydroxyindole and derivatives via an improvedZn(II)-assisted 2,beta-dinitrostyrene approach
Authors: Novellino, L d'Ischia, M Prota, G
Citation: L. Novellino et al., Expedient synthesis of 5,6-dihydroxyindole and derivatives via an improvedZn(II)-assisted 2,beta-dinitrostyrene approach, SYNTHESIS-S, (5), 1999, pp. 793-796
A new insight in the biosynthesis of pheomelanins: Characterization of a labile 1,4-benzothiazine intermediate
Authors: Napolitano, A Memoli, S Prota, G
Citation: A. Napolitano et al., A new insight in the biosynthesis of pheomelanins: Characterization of a labile 1,4-benzothiazine intermediate, J ORG CHEM, 64(9), 1999, pp. 3009-3011
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