Results 121 to 130 of about 24,273 (376)

Synthesis of the d- and l-3: 4-dihydroxyphenylalanines [PDF]

, 1931
C. R. Harington, Sydney Stewart Randall
openalex   +1 more source

6-[F-18]Fluoro-L-dihydroxyphenylalanine positron emission tomography is superior to conventional imaging with (123)I-metaiodobenzylguanidine scintigraphy, computer tomography, and magnetic resonance imaging in localizing tumors causing catecholamine excess.

Journal of Clinical Endocrinology and Metabolism, 2009
CONTEXT Catecholamine excess is rare, but symptoms may be life threatening. OBJECTIVE The objective of the study was to investigate the sensitivity of 6-[F-18]fluoro-l-dihydroxyphenylalanine positron emission tomography ((18)F-DOPA PET), compared with (
H. Fiebrich, A. Brouwers, M. Kerstens, M. Pijl, I. Kema, J. de Jong, P. L. Jager, P. Elsinga, R. Dierckx, J. E. van der Wal, W. Sluiter, E. D. de Vries, T. Links   +12 more
semanticscholar   +1 more source

Effects of Lactobacillus fermentum GKF3 on Reducing Smoking and Brain Neurotransmitter Levels: Findings From Animal and Human Studies

Food Frontiers, EarlyView.
1.Developing food‐grade probiotic strains with smoking reduction benefits presents a safer and more holistic health strategy. 2.An animal study demonstrated that L. fermentum GKF3 gavage elevated brain dopamine and serotonin levels. 3.A randomized controlled trial showed that L.
You‐Shan Tsai, Shan Lin, Chin‐Chu Chen, Chun‐Hung Chiu, Mei‐Chin Mong, Shu‐Ling Hu, Chi‐Hao Wu   +6 more
wiley   +1 more source

The accumulation of l-3:4-dihydroxyphenylalanine in the tyrosinase-tyrosine reaction [PDF]

, 1937
William C. Evans, Henry Stanley Raper
openalex   +1 more source

Endogenous 3,4-Dihydroxyphenylalanine and Dopaquinone Modifications on Protein Tyrosine

Molecular & Cellular Proteomics, 2010
Oxidative modifications of protein tyrosines have been implicated in multiple human diseases. Among these modifications, elevations in levels of 3,4-dihydroxyphenylalanine (DOPA), a major product of hydroxyl radical addition to tyrosine, has been ...
Xu Zhang, M. Monroe, Baowei Chen, M. H. Chin, Tyler H Heibeck, A. Schepmoes, Feng Yang, B. Petritis, D. Camp, J. Pounds, J. Jacobs, Desmond J. Smith, D. Bigelow, Richard D. Smith, W. Qian   +14 more
semanticscholar   +1 more source

Challenges in the management of Phenylketonuria in Malta [PDF]

, 2016
Phenylketonuria (PKU) is a rare metabolic disorder comprising a number of different enzyme deficiencies. In Malta, dihydropteridine reductase (DHPR) deficiency appears to be more common than phenylalanine hydroxylase deficiency (classical PKU), and is ...
Attard Montalto, Simon, Attard, Stephen
core  

Antiparkinsonian efficacy of guanosine in rodent models of movement disorder [PDF]

, 2017
Guanosine (GUO) is a guanine-based purine nucleoside with important trophic functions and promising neuroprotective properties. Although the neuroprotective effects of GUO have been corroborated in cellular models of Parkinson's disease (PD), its ...
Ciruela Alférez, Francisco, Fernández Dueñas, Víctor, López-Cano, Marc, Massari, Caio M., Núñez, Fabiana, Tasca, Carla I.   +5 more
core   +1 more source

Somatic cell reprogramming for Parkinson's disease treatment

Ibrain, Volume 11, Issue 1, Page 59-73, Spring 2025.
The fundamental purpose of cell reprogramming to treat Parkinson's disease is to generate dopaminergic neurons (DAN) and do transplantation. There are two ways to accomplish this. One method is to induce cells into induced DA neurons (iDAN) directly or to induce cells into induced pluripotent stem cells and ultimately into iDAN in vitro. Another option
Xiaozhuo Li, Kevin Fang, Fengping Wang
wiley   +1 more source

A comparative study of the production of l-3:4-dihydroxyphenylalanine from tyrosine by tyrosinase from various sources [PDF]

, 1937
William C. Evans, Henry Stanley Raper
openalex   +1 more source

Applications of bioactive herbal extracts in dressing materials for skin wound repair: Ingredients, mechanisms and innovations

Interdisciplinary Medicine, EarlyView.
Abstract The skin, as the body's largest organ, plays essential roles in protection, immune regulation, and homeostasis. Skin trauma, especially chronic wounds such as diabetic ulcers, poses significant clinical challenges. Traditional treatments, while often effective, can be costly and pose risks.
Boxiang Yang, Jingyuan Xu, Siyi Liu, Chaoying Wu, Yi Li, Mingqi Lv, Tingting Chen, Chuanrong Zhao, Daojun Pu, Chaojun Tang, Anna Malashicheva, Guangchao Zang, Guixue Wang   +12 more
wiley   +1 more source