Results 1 to 10 of about 58,036 (310)

Effects of L-dopa and p-coumaric acid combination on oxidative stress, DNA damage, and mitochondrial apoptosis in neuroblastoma cells

open access: yesBangladesh Journal of Pharmacology, 2023
This study aimed to investigate the effects of levodopa (L-dopa), p-coumaric acid, and combinations in the neuroblastoma (N1E-115) cell. L-dopa and L-dopa plus p-coumaric acid group caused oxidative stress by increasing 12.5 and 3.7-fold in superoxide ...
Nebiye Pelin Turker, Elvan Bakar
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of 1-carboxy-2-(3,4-dihydroxyphenyl)ethan-1-aminium bromide 2-ammonio-3-(3,4-dihydroxyphenyl)propanoate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title molecular salt, C9H12NO4+·Br−·C9H11NO4, one of the dopa molecules is in the cationic form in which the α-amino group is protonated and the α-carboxylic acid group is uncharged, while the second dopa molecule is in the zwitterion form. The Br−
Perumal Kathiravan   +5 more
doaj   +1 more source

6R-L-erythro-5,6,7,8-Tetrahydrobiopterin and Dopamine Release

open access: yesPteridines, 1995
We previously reported that intracerebroventricular administration of 6R-L-erythro-5,6,7,8-tetrahydrobiopterin (6R-BJL), a cofactor for aromatic amino acid hydroxylases and nitric oxide synthase, induces an increase in DOPA levels (as an index of DA ...
Miwa Soichi, Koshimura Kunio
doaj   +1 more source

Enhanced expression of genes in the brains of larvae of Mamestra brassicae (Lepidoptera: Noctuidae) exposed to short daylength or fed Dopa

open access: yesEuropean Journal of Entomology, 2003
The cabbage armyworm, Mamestra brassicae, enters diapause in the early pupal stage. Pupal diapause is induced by rearing the larvae under short day lengths.
Masahide URYU   +4 more
doaj   +1 more source

GABA storage and release in the medial globus pallidus in L-DOPA-induced dyskinesia priming

open access: yesNeurobiology of Disease, 2020
Levo-dihydroxyphenylalanine (L-DOPA) is the most effective treatment for Parkinson's disease; however, most patients develop uncontrollable abnormal involuntary movements known as L-DOPA-induced dyskinesia.
Haruo Nishijima   +10 more
doaj   +1 more source

Suppressive Effect of Tetrahydrobiopterin on L-β-( 3,4-Dihydroxyphenyl) alanine-Induced Cytotoxicity in PC-12 Cells

open access: yesPteridines, 1997
We examined the inhibitory effect of tetrahydrobiopterin (BPH4) on L-β-(3,4-dihydroxyphenyl)alanine (DOPA)-induced cytotoxicity in PC-12 cells. First in vitro inhibitory efficacy of BPH4 on lipid peroxidation induced by Fe3+-DOPA complex was confirmed by
Kojima Shuji   +4 more
doaj   +1 more source

Uso precoce e tardio de dopamina após isquemia miocárdica Early and late use of dopamine after myocardial ischemia

open access: yesBrazilian Journal of Cardiovascular Surgery, 2004
OBJETIVO: Avaliar os efeitos na função ventricular esquerda do uso precoce e tardio de dopamina, em modelo experimental de coração isolado. MÉTODO: Foram utilizados 60 coelhos em modelo de coração isolado mantido por animal suporte.
Ademar R. Souza   +4 more
doaj   +1 more source

Polymorphism of the Dopa-Decarboxylase Gene Modifies the Motor Response to Levodopa in Chinese Patients With Parkinson's Disease

open access: yesFrontiers in Neurology, 2020
Levodopa (L-DOPA) is the most effective drug for Parkinson's disease (PD). However, the response to L-DOPA remains individually variable, which hampers the practical value of L-DOPA in the clinic. Genetic factors play a role in L-DOPA efficacy.
Lanting Li   +6 more
doaj   +1 more source

Striatal astrocytes act as a reservoir for L-DOPA.

open access: yesPLoS ONE, 2014
L-DOPA is therapeutically efficacious in patients with Parkinson's disease (PD), although dopamine (DA) neurons are severely degenerated. Since cortical astrocytes express neutral amino acid transporter (LAT) and DA transporter (DAT), the uptake and ...
Masato Asanuma   +4 more
doaj   +1 more source

L-dopa and arousal [PDF]

open access: yesJournal of Neurology, Neurosurgery & Psychiatry, 1974
In 10 patients with Parkinsonism, treatment with L-dopa was associated with a rise in the skin conductance level and its fluctuations, an increased electromyographic activity in the frontalis muscle, and with faster reaction times. The change of skin conductance in response to a loud noise also increased and its habituation to the repetition of the ...
T B, Horvath, R A, Meares
openaire   +2 more sources

Home - About - Disclaimer - Privacy