Results 111 to 120 of about 75,185 (305)

Brain catecholamine depletion and motor impairment in a Th knock-in mouse with type B tyrosine hydroxylase deficiency [PDF]

open access: yes, 2015
Tyrosine hydroxylase catalyses the hydroxylation of L-tyrosine to l-DOPA, the rate- limiting step in the synthesis of catecholamines. Mutations in the TH gene encoding tyrosine hydroxylase are associated with the autosomal recessive disorder tyrosine ...
Allegri, Gabriella   +17 more
core   +3 more sources

Ketogenic diet for infantile epileptic spasms

open access: yesEpilepsia Open, EarlyView.
Abstract Approximately half of all cases of Infantile Epileptic Spasms Syndrome (IESS) do not respond to vigabatrin and hormonal therapies. There is no clear consensus as to the second‐line therapy for IESS. Ketogenic diet (KD) has emerged as an effective treatment for certain drug‐resistant epilepsies and in many cases of IESS.
Morris H. Scantlebury   +3 more
wiley   +1 more source

Pharmacology of Antiparkinsonian Agents [PDF]

open access: yes, 1997
The following is a summary of a two hour class on the basic pharmacology of antiparkinsonian agents. It is presented to fourth-year pharmacy students in pharmacotherapeutics III, a course structured using team-taught modules.
Soltis, Robert P.
core   +1 more source

A unique dual activity amino acid hydroxylase in Toxoplasma gondii [PDF]

open access: yes, 2009
The genome of the protozoan parasite Toxoplasma gondii was found to contain two genes encoding tyrosine hydroxylase; that produces L-DOPA. The encoded enzymes metabolize phenylalanine as well as tyrosine with substrate preference for tyrosine.
Gaskell, EA   +4 more
core   +2 more sources

Somatic cell reprogramming for Parkinson's disease treatment

open access: yesIbrain, 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

Analysis of amino acids in Mucuna pruriens supplements using hydrophilic interaction liquid chromatography-tandem mass spectrometry

open access: yesAmino Acids
Mucuna pruriens (MP), or velvet bean, has been used as an alternative medicine in India for over 4500 years, predominantly due to the natural abundance of the non-protein amino acid L-3,4-dihydroxyphenylalanine (L-DOPA).
Connor R. Phillips   +3 more
doaj   +1 more source

Beyond “you are what you eat”: Unlocking gut microbiota‐mediated biotransformation of dietary phytochemicals

open access: yesiMetaOmics, EarlyView.
The “efficacy paradox” of phytochemicals, low bioavailability yet significant health benefits, is associated with gut microbiota, which biotransforms dietary precursors into bioactive metabolites, enabling systemic effects. Thus, health outcomes of diet depend not just on intake “the rainbow”, but on gut microbial metabolism, redefining “you are what ...
Peng Yang, Ren‐You Gan
wiley   +1 more source

White Matter Dysfunction and Neurotransmitter Basis Underlying the Freezing of Gait in Parkinson's Disease

open access: yesiNew Medicine, EarlyView.
In the freezing of gait in Parkinson's disease, white matter shows decreased local activity but increased functional connectivity. These distinct dysfunctions are uniquely associated with specific neurotransmitter systems (GABA, dopamine, etc.), mapping a new neurochemical basis for this debilitating symptom. ABSTRACT Freezing of gait (FOG) is a severe
Pingping Liu   +10 more
wiley   +1 more source

Deep Brain Stimulation of Caudal Zona Incerta for Parkinson's Disease: One‐Year Follow‐Up and Electric Field Simulations

open access: yesNeuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objective To evaluate the effects of bilateral caudal zona incerta (cZi) deep brain stimulation (DBS) for Parkinson's disease (PD) one year after surgery and to create anatomical improvement maps based on patient‐specific simulation of the electric field.
Rasmus Stenmark Persson   +6 more
wiley   +1 more source

Catecholamines are active plant-based drug compounds in Pisum sativum, Phaseolus vulgaris and Vicia faba Species [PDF]

open access: yes, 2014
Introduction: Catecholamines (L-DOPA and dopamine) are the key metabolites found in nervous system and their endogenous deficiency is associated with different patho-physiological disorders.
Emamzadeh, R.   +3 more
core  

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