Results 311 to 320 of about 24,273 (376)

Dip2a regulates stress susceptibility in the basolateral amygdala. [PDF]

Neural Regen Res
Li J, He Z, Chai W, Tian M, Yu H, He X, Zhu X.   +6 more
europepmc   +1 more source

Complete Tumor Resection and Radical Lymphadenectomy: Potential Cure for Adrenocorticotropic Hormone (ACTH)-Dependent Pulmonary Carcinoid. [PDF]

Cureus
Elsheikh A, Harbuz-Miller I, Vates E, Nead M, Shafiq I.   +4 more
europepmc   +1 more source

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Molecular mechanics of dihydroxyphenylalanine at a silica interface

Applied Physics Letters, 2012
L-3,4-dihydroxyphenylalanine (DOPA) is an amazing biological glue secreted by marine mussels. Through enhanced sampling molecular dynamics, here we demonstrate that proteins with DOPA residues have a strong affinity to a silica surface with an interfacial strength of several hundreds of thousand N/cm2. The mechanism of such strong adhesion is a pair of
Zhao Qin, Markus J. Buehler
openaire   +3 more sources

Fabrication of Homochiral Metal-Organic Frameworks in TiO2 Nanochannels for In Situ Identification of 3,4-Dihydroxyphenylalanine Enantiomers.

Analytical Chemistry, 2021
Enantioselective identification of chiral molecules is important for biomedical and pharmaceutical research. However, owing to identical molecular formulas and chemical properties of enantiomers, signal transduction and amplification are still the two ...
Zhenqing Dai, Junli Guo, Chen-xi Zhao, Zhida Gao, Yanyan Song   +4 more
semanticscholar   +1 more source

Silk Hydrogels with Controllable Formation of Dityrosine, 3,4-Dihydroxyphenylalanine, and 3,4-Dihydroxyphenylalanine-Fe3+ Complexes through Chitosan Particle-Assisted Fenton Reactions.

Biomacromolecules, 2021
The oxidation of tyrosine residues of silk fibroin involves the generation of dityrosine and 3,4-dihydroxyphenylalanine (DOPA). However, it remains a challenge to selectively control the reaction pathway to produce dityrosine or DOPA in a selective ...
Jaewon Choi, Onur Hasturk, X. Mu, J. K. Sahoo, D. Kaplan   +4 more
semanticscholar   +1 more source

Dihydroxyphenylalanine in Extrapyramidal Disease [PDF]

JAMA: The Journal of the American Medical Association, 1963
EVIDENCE has been accumulating for the past several years which has implicated dopamine metabolism in the production of extrapyramidal symptoms. Drugs such as reserpine which tend to produce extrapyramidal symptoms as a side effect have been shown to deplete dopamine from the brain.
Ethel Tobach, Leon J. Hekimian, Murray Alpert, Arnold J. Friedhoff   +3 more
openaire   +2 more sources

Chemiluminescence in the autooxidation of dihydroxyphenylalanine [PDF]

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.
V. N. Shtol’ko, G. N. Bogdanov
openaire   +1 more source

On the presence of dihydroxyphenylalanine decarboxylase in nerves

Experientia, 1964
Durchtrennung des Ruckenmarks fuhrt zu einer Verminderung der Aktivitat des Enzymsl-3,4-Dihydroxyphenylalanin-decarboxylase (DOPA-Decarboxylase) in den kaudalen Teilen um 75% (in-vivo-Werte) bis 95% (in-vitro-Werte). Die Decarboxylaseaktivitat in der Rattenmilz wird nach Exzision des Ganglion Coeliacum ebenfalls erheblich vermindert.
Evald Rosengren, Tor Magnusson, Nils-Erik Andén   +2 more
openaire   +3 more sources

Neuronal Source of Plasma Dihydroxyphenylalanine

The Journal of Clinical Endocrinology & Metabolism, 1987
The source and significance of plasma levels of dihydroxyphenylalanine (DOPA), the precursor of the endogenous catecholamines, have been unknown. We measured arterial and venous plasma DOPA concentrations in healthy subjects at rest, patients who had undergone regional sympathectomies or were undergoing general anesthesia, and subjects during ...
DAVID S. GOLDSTEIN, ROBERT UDELSMAN, GRAEME EISENHOFER, ROBIN STULL, HARRY R. KEISER, IRWIN J. KOPIN, CAROL JOAN FOLIO   +6 more
openaire   +3 more sources

Efficient Synthesis of Hydroxytyrosol from l-3,4-Dihydroxyphenylalanine Using Engineered Escherichia coli Whole Cells.

Journal of Agricultural and Food Chemistry, 2019
Hydroxytyrosol is a high-value-added compound with a variety of biological and pharmacological activities. In this study, a whole-cell catalytic method for the synthesis of hydroxytyrosol was developed: aromatic amino acid aminotransferase (TyrB), l ...
Chao-Jun Li, Pu Jia, Yajun Bai, T. Fan, Xiaohui Zheng, Yujie Cai   +5 more
semanticscholar   +1 more source