Results 281 to 290 of about 25,647 (343)

The synthesis and adhesive performance of the poly(N-benzyloxycarbonyl-3,4-dihydroxyphenylalanine) derived from 3,4-dihydroxyphenylalanine

Journal of Adhesion Science and Technology, 2013
Adhesive polymers, which contain an unusual amino acid, 3,4-dihydroxyphenylalanine (DOPA), can bind strongly to all organic or inorganic surfaces. However, due to DOPA’s poor solubility in organic solvents, it is difficult for us to get desired adhesive polymers. In this paper, poly(N-benzyloxycarbonyl-3,4-dihydroxyphenylalanine) (PNBD) was synthesized
Yihang Lv, Hui Ma, Dongdong Gao, Yi Zhong, Hong Xu, Zhiping Mao   +5 more
openaire   +1 more source

Evidence that D-1 dopamine receptors contribute to the supersensitive behavioral responses induced by L-dihydroxyphenylalanine in rats treated neonatally with 6-hydroxydopamine.

Journal of Pharmacology and Experimental Therapeutics, 1985
The present investigation supports the hypothesis that functionally supersensitive D-1 dopamine receptors are involved in the self-mutilation behavior (SMB) induced by L-dihydroxyphenylalanine (L-dopa) in rats treated neonatally with 6-hydroxydopamine (6-
G. Breese, A. Baumeister, T. Napier, G. Frye, R. Mueller   +4 more
semanticscholar   +1 more source

Electroencephalographic analysis of the central action of dihydroxyphenylalanine

Electroencephalography and Clinical Neurophysiology, 1970
Abstract 1. 1. The EEG effects of DOPA were analysed in cats, depending upon the level of brain-stem section. 2. 2. In contrast with cats with chronically implanted electrodes, gallamine-immobilized, and with encephale isole cats, in which DOPA is unable to induce profound changes in the EEG pattern and behaviour, this amino acid elicits an
K, Kadzielawa, E, Widy-Tyszkiewicz
openaire   +2 more sources

Chemiluminescence in the autooxidation of dihydroxyphenylalanine

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1972
1. In the oxidation of dihydroxyphenylalanine in alkaline medium, chemiluminescence was detected in the region of 450–600 nm with a maximum at 530 nm. The step of cyclization, leading to the formation of 5,6-dihydroxyindole, proved responsible for the luminescence. 2.
G. N. Bogdanov, V. N. Shtol'ko
openaire   +1 more source

ENZYMATIC DECARBOXYLATION OF 2,6- AND 2,3-DIHYDROXYPHENYLALANINE

Canadian Journal of Biochemistry and Physiology, 1954
The action of dihydroxyphenylalanine (dopa) decarboxylase of guinea pig kidney and of tyrosine decarboxylase of Streptococcus faecalis R on 2,3- and 2,6-dopa has been studied. Compared with 3,4-dopa, these substrates are decarboxylated by the kidney enzyme at rates decreasing in the order: 2,3-, 3,4-, 2,6-dopa.
openaire   +2 more sources

Remission in dihydroxyphenylalanine‐responsive dystonia

Movement Disorders, 1995
M, Di Capua, E, Bertini
openaire   +2 more sources

ADMINISTRATION OF DIHYDROXYPHENYLALANINE TO PARKINSONIAN PATIENTS.

Canadian Medical Association journal, 1996
Dihydroxyphenylalanine (dopa), the metabolic precursor of dopamine, was administered to 10 parkinsonian patients in oral doses of 1-5 g. and intravenous doses of 0.2-0.5 g. Increases in dopamine excretion of 100- to 1000-fold following the dopa administration indicated that dopa was being absorbed and metabolized. Only two of the 10 patients showed any
P L, MCGEER, L R, ZELDOWICZ
openaire   +1 more source

Self-assembly of l -cysteine–gold nanoparticles as chiral probes for visual recognition of 3,4-dihydroxyphenylalanine enantiomers

, 2015
Lin Zhang, Chunli Xu, Guoxin Song, Baoxin Li   +3 more
semanticscholar   +1 more source

Excretion of 3,4-dihydroxyphenylalanine in urine

Biochimica et Biophysica Acta (BBA) - General Subjects, 1961
T, GERRITSEN, S C, COPPS, H A, WAISMAN
openaire   +2 more sources

Melanin Polymerization Held in Check: A Composite of Dihydroxyphenylalanine with Zeolite Beta

, 2015
Meryem Bouchoucha, F. Tielens, F. Gaslain, S. Casale, Ana Palčić, V. Valtchev, J. Lambert, M. Jaber   +7 more
semanticscholar   +1 more source