Results 51 to 60 of about 18,492 (264)

Increased bradykinesia in Parkinson’s disease with increased movement complexity: elbow flexion-extension movements [PDF]

open access: yes, 2008
The present research investigates factors contributing to bradykinesia in the control of simple and complex voluntary limb movement in Parkinson’s disease (PD) patients.
Geelen, J.A.G.   +3 more
core   +4 more sources

Basal ganglia neuropeptides show abnormal processing associated with L-DOPA-induced dyskinesia

open access: yesnpj Parkinson's Disease, 2022
L-DOPA administration is the primary treatment for Parkinson’s disease (PD) but long-term administration is usually accompanied by hyperkinetic side-effects called L-DOPA-induced dyskinesia (LID). Signaling neuropeptides of the basal ganglia are affected
Heather Hulme   +7 more
doaj   +1 more source

Behavioral effects of dynorphin — a novel opioid neuropeptide [PDF]

open access: yesNeuropharmacology, 1980
Abstract Adult male Swiss-Webster mice were implanted with permanently indwelling cannulae with tips within the lateral cerebral ventricle. The neuropeptide dynorphin was infused centrally and subjects were tested on a variety behavioral tasks. Peptide treated mice were more likely than vehicle treatd mice to eat and groom. At higher doses, dynorphin
openaire   +3 more sources

Bulleyaconitine A Inhibits Visceral Nociception and Spinal Synaptic Plasticity through Stimulation of Microglial Release of Dynorphin A

open access: yesNeural Plasticity, 2020
Background. Visceral pain is one of the most common types of pain and particularly in the abdomen is associated with gastrointestinal diseases. Bulleyaconitine A (BAA), isolated from Aconitum bulleyanum, is prescribed in China to treat chronic pain.
Sheng-Nan Huang   +5 more
doaj   +1 more source

Mechanism of kisspeptin neuron synchronization for pulsatile hormone secretion in male mice

open access: yesCell Reports, 2023
Summary: The mechanism by which arcuate nucleus kisspeptin (ARNKISS) neurons co-expressing glutamate, neurokinin B, and dynorphin intermittently synchronize their activity to generate pulsatile hormone secretion remains unknown.
Su Young Han   +7 more
doaj   +1 more source

Afferent Neuronal Control of Type-I Gonadotropin Releasing Hormone Neurons in the Human. [PDF]

open access: yes, 2013
Understanding the regulation of the human menstrual cycle represents an important ultimate challenge of reproductive neuroendocrine research. However, direct translation of information from laboratory animal experiments to the human is often complicated ...
Hrabovszky, Erik, Liposits, Zsolt
core   +1 more source

Isolation and amino acid sequence analysis of a 4,000-dalton dynorphin from porcine pituitary [PDF]

open access: yes, 1982
A 4,000-dalton dynorphin was isolated from porcine pituitary. It has 32 amino acids (Mr = 3,986), with the previously described heptadecapeptide (now called dynorphin A) at its amino terminus and a related tridecapeptide, dynorphin B, at its carboxyl ...
Fischli, Walter   +3 more
core  

Fetal Pain Perception: Legislative Assertions and Developmental Neuroscience

open access: yesAnnals of the Child Neurology Society, EarlyView.
ABSTRACT Background Pain perception is a conscious experience, but neither pain nor consciousness is defined in the developing human fetus. Emergent consciousness may be regarded as a phenomenon that ultimately arises from an essential minimum of functional neuronal connectivity. Proposed U.S.
William D. Graf   +9 more
wiley   +1 more source

Dynorphin Controls the Gain of an Amygdalar Anxiety Circuit

open access: yesCell Reports, 2016
Kappa opioid receptors (KORs) are involved in a variety of aversive behavioral states, including anxiety. To date, a circuit-based mechanism for KOR-driven anxiety has not been described.
Nicole A. Crowley   +13 more
doaj   +1 more source

Highly redundant neuropeptide volume co-transmission underlying episodic activation of the GnRH neuron dendron

open access: yeseLife, 2021
The necessity and functional significance of neurotransmitter co-transmission remains unclear. The glutamatergic ‘KNDy’ neurons co-express kisspeptin, neurokinin B (NKB), and dynorphin and exhibit a highly stereotyped synchronized behavior that reads out
Xinhuai Liu   +7 more
doaj   +1 more source

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