【摘 要】
:
Restraint water-immersion stress (RWIS),a compound stress model,has been widely used to induce acute gastric ulceration in rats.A wealth of evidence suggests that the central nucleus of the amygdala (CEA) is a focal region for mediating the biological res
【机 构】
:
Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong
论文部分内容阅读
Restraint water-immersion stress (RWIS),a compound stress model,has been widely used to induce acute gastric ulceration in rats.A wealth of evidence suggests that the central nucleus of the amygdala (CEA) is a focal region for mediating the biological response to stress.Different stressors induce distinct alterations of neuronal activity in the CEA;however,few studies have reported the characteristics of CEA neuronal activity induced by RWIS.Therefore,we explored this issue using immunohistochemistry and in vivo extracellular single-unit recording.Our results showed that RWIS and restraint stress (RS) differentially changed the c-Fos expression and firing properties of neurons in the medial CEA.In addition,RWIS,but not RS,induced the activation of corticotropin-releasing hormone neurons in the CEA.These findings suggested that specific neuronal activation in the CEA is involved in the formation of RWIS-induced gastric ulcers.This study also provides a possible theoretical explanation for the different gastric dysfunctions induced by different stressors.
其他文献
Drugs that lack the ability to cross the bloodbrain barrier (BBB) need to be placed directly into the central nervous system.Our laboratory studies the involvement of the glutamatergic system in the aggressiveness of glioma,and some ligands of glutamate r
Gamma band oscillation (GBO) and sensory gating (SG) are associated with many cognitive functions.Ketamine induces deficits of GBO and SG in the prefrontal cortex (PFC).However,the time-courses of the effects of different doses of ketamine on GBO power an
Diffusion-weighted magnetic resonance imaging (dMRI) is widely used to study white and gray matter (GM) micro-organization and structural connectivity in the brain.Super-resolution track-density imaging (TDI) is an image reconstruction method for dMRI dat
Positron emission tomography (PET) imaging of functional metabolism has been widely used to investigate functional recovery and to evaluate therapeutic efficacy after stroke.The voxel intensity of a PET image is the most important indicator of cellular ac
Behavioral adjustment plays an important role in the treatment and relapse of drug addiction.Nonetheless,few studies have examined behavioral adjustment and its plasticity following error commission in methamphetamine (METH) dependence,which is detrimenta
The dorsolateral prefrontal cortex (DLPFC) is considered to play a crucial role in many high-level functions,such as cognitive control and emotional regulation.Many studies have reported that the DLPFC can be activated during the processing of emotional i
As an environmental risk factor,psychological stress may trigger the onset or accelerate the progression of Parkinson\'s disease (PD).Here,we evaluated the effects of acute restraint stress on striatal dopaminergic terminals and the brain metabolism of
Dear Editor,rnThe V-MYC avian myelocytomatosis viral-related oncogene,a neuroblastoma-derived gene (MYCN,MIM:164840) located on chromosome 2p24,was previously found to be associated with Feingold syndrome 1 (FGLDS1,MIM:164280) [1].FGLDS1 is an autosomal d
Dear Editor,rnSpinocerebellar ataxias (SCAs) are a group of genetic disorders characterized by slowly progressive incoordination of gait and are often associated with poor coordination of the hands,speech,and eye movements.Frequently,atrophy of the cerebe