Results 41 to 50 of about 478,697 (222)

Anxiogenic Effect of Cholecystokinin in the Dorsal Periaqueductal Gray [PDF]

open access: yesNeuropsychopharmacology, 2003
Systemic administration of cholecystokinin (CCK) fragments produces anxiogenic effects. The dorsal periaqueductal gray (dPAG) has been related to anxiety and panic reactions. The objective of this study was to investigate a possible anxiogenic effect of CCK-8 microinjected into the dPAG.
Cristina Ferreira, Netto   +1 more
openaire   +2 more sources

Condicionamento olfatório aversivo induzido pela estimulação química da matéria cinzenta periaquedutal dorsolateral de ratos [PDF]

open access: yes, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Farmacologia, Florianópolis, 2011Pistas olfatórias associadas a estímulos aversivos são capazes de ativar estruturas neurais ...
Kincheski, Grasielle Clotildes
core  

Periaqueductal/periventricular gray deep brain stimulation for the treatment of neuropathic facial pain

open access: yesFrontiers in Neurology, 2023
BackgroundThe Periaqueductal gray (PAG) and the periventricular gray (PVG) are the anatomical targets for deep brain stimulation (DBS) to treat severe, refractory neuropathic pain.MethodsSeven (four female and three male) patients were qualified for PAG ...
Victor Mandat   +7 more
doaj   +1 more source

Absence seizures: Update on signaling mechanisms and networks

open access: yesEpilepsia Open, EarlyView.
Abstract Absence seizures (AS) are a hallmark of genetic generalized epilepsies (GGE), characterized by brief episodes of impaired consciousness accompanied by electroencephalographic spike‐and‐wave discharges (SWDs). Traditionally attributed to cortico‐thalamo‐cortical (CTC) dysrhythmia, emerging evidence suggests a more intricate pathophysiological ...
Ozlem Akman, Filiz Onat
wiley   +1 more source

Participação do sistema glutamatérgico da substância cinzenta periaquedutal dorsolateral na resposta defensiva de ratos submetidos ao teste-reteste no labirinto em cruz elevado [PDF]

open access: yes, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Farmacologia.The elevated plus-maze (EPM) has been widely used as a tool to understand defensive behavior related to anxiety ...
Kincheski, Grasielle Clotildes
core  

New perspective on the pathophysiology of panic: merging serotonin and opioids in the periaqueductal gray

open access: yesBrazilian Journal of Medical and Biological Research, 2012
Panic disorder patients are vulnerable to recurrent panic attacks. Two neurochemical hypotheses have been proposed to explain this susceptibility. The first assumes that panic patients have deficient serotonergic inhibition of neurons localized in the ...
F.G. Graeff
doaj   +2 more sources

Status epilepticus: Updates on mechanisms and treatments

open access: yesEpilepsia Open, EarlyView.
Abstract Status epilepticus (SE) consists of prolonged, self‐sustaining seizures and is a common neurological emergency that causes respiratory compromise and neuronal injury. Without prompt treatment, the seizures can become resistant to benzodiazepines, leading to the progressive evolution of established, refractory, and super‐refractory SE.
Suchitra Joshi, Jaideep Kapur
wiley   +1 more source

Injeção de glicina na substância cinzenta periaquedutal dorsal facilita ou inibe a nocicepção dependendo do contexto nociceptivo [PDF]

open access: yes, 2009
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Farmacologia.A Substância Cinzenta Periaqueductal dorsal (SCPd) é reconhecida como uma estrutura do sistema nervoso central (SNC ...
Martins, Maria Alcina
core  

Sexual Dimorphism in Kisspeptin and Kiss1R in the Ventrolateral Periaqueductal Gray [PDF]

open access: yes, 2021
Chronic pain manifests as a debilitating pathological state that affects up to 10% of the global population. Previous investigations revealed a disproportionate distribution of pain experience between sexes with females reporting a higher prevalence of ...
Hernandez, Jacqueline
core  

Qualitative analysis of neurons in the human periaqueductal gray [PDF]

open access: yes, 2012
Introduction: The periaqueductal gray matter is classically divided into four major nuclei: dorsal, medial, lateral and ventral, according to their cytoarchitectural feature.
Vujic, Jovan
core   +1 more source

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