Results 21 to 30 of about 478,697 (222)

Motor cortex-periaqueductal gray-spinal cord neuronal circuitry may involve in modulation of nociception: a virally mediated transsynaptic tracing study in spinally transected transgenic mouse model.

open access: yesPLoS ONE, 2014
Several studies have shown that motor cortex stimulation provided pain relief by motor cortex plasticity and activating descending inhibitory pain control systems.
Da-Wei Ye   +4 more
doaj   +1 more source

Periaqueductal gray neurons encode the sequential motor program in hunting behavior of mice

open access: yesNature Communications, 2021
Hunting behavior typically contains a sequential motor program, including search, chase, attack, and consumption. Here, the authors show that periaqueductal gray neuronal ensembles encode the sequential hunting motor program, which might provide a ...
Hong Yu   +9 more
doaj   +1 more source

D-serine in the midbrain periaqueductal gray contributes to morphine tolerance in rats

open access: yesMolecular Pain, 2016
Background The N-methyl- D -aspartate subtype of glutamate receptor plays a critical role in morphine tolerance. D-serine, a co-agonist of N-methyl- D -aspartate receptor, participates in many physiological and pathophysiological processes via regulating
Song Cao MD, PhD   +3 more
doaj   +1 more source

Neuroinflammation and central PI3K/Akt/mTOR signal pathway contribute to bone cancer pain

open access: yesMolecular Pain, 2019
Background Pain is one of the most common and distressing symptoms suffered by patients with progression of cancer; however, the mechanisms responsible for hyperalgesia are not well understood.
Jian Zhang   +4 more
doaj   +1 more source

The Threatful Self: Midbrain Functional Connectivity to Cortical Midline and Parietal Regions During Subliminal Trauma-Related Processing in PTSD

open access: yesChronic Stress, 2019
Background The innate alarm system consists of a subcortical network of interconnected midbrain, lower brainstem, and thalamic nuclei, which together mediate the detection of evolutionarily-relevant stimuli.
Braeden A. Terpou   +6 more
doaj   +1 more source

Past, Present, and Future in the Study of Neural Control of the Lower Urinary Tract [PDF]

open access: yesInternational Neurourology Journal, 2020
The neurological coordination of the lower urinary tract can be analyzed from the perspective of motor neurons or sensory neurons. First, sensory nerves with receptors in the bladder and urethra transmits stimuli to the cerebral cortex through the ...
Jin Wook Kim, Su Jin Kim, Khae Hawn Kim
doaj   +1 more source

Anatomical connections of the periaqueductal gray: specific neural substrates for different kinds of fear

open access: yesBrazilian Journal of Medical and Biological Research, 2003
The periaqueductal gray (PAG) has been traditionally considered to be an exit relay for defensive responses. Functional mapping of its subdivisions has advanced our knowledge of this structure, but synthesis remains difficult mainly because results from ...
D.M.L. Vianna, M.L. Brandão
doaj   +1 more source

Dorsal periaqueductal gray ensembles represent approach and avoidance states

open access: yeseLife, 2021
Animals must balance needs to approach threats for risk assessment and to avoid danger. The dorsal periaqueductal gray (dPAG) controls defensive behaviors, but it is unknown how it represents states associated with threat approach and avoidance.
Fernando MCV Reis   +12 more
doaj   +1 more source

A Midbrain Circuit that Mediates Headache Aversiveness in Rats

open access: yesCell Reports, 2019
Summary: Migraines are a major health burden, but treatment is limited because of inadequate understanding of neural mechanisms underlying headache. Imaging studies of migraine patients demonstrate changes in both pain-modulatory circuits and reward ...
Maggie W. Waung   +3 more
doaj   +1 more source

VlPAG/DRN Microglia Drive Neuropathic Pain‐Induced Depression via a Defined Neuroimmune Axis

open access: yesAdvanced Science, EarlyView.
Peripheral nerve injury (SNI) induces neuropathic pain, activates midbrain microglia, and triggers an NLRP3–IL‐1β–dependent inflammatory cascade. IL‐1β signals through IL‐1R1 on vlPAG/DRN VGLUT2+ neurons (vlPAG/DRNGlu), inducing hyperexcitability and driving the vlPAG/DRNGlu→BNSTGABA circuit to produce the affective component of neuropathic pain ...
Jing Yang   +7 more
wiley   +1 more source

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